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source: trunk/src/kernel32/HandleManager.cpp@ 4384

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Last change on this file since 4384 was 4285, checked in by hugh, 25 years ago
Implemented Serial APIs
File size: 174.9 KB

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1	/* $Id: HandleManager.cpp,v 1.50 2000-09-20 21:32:50 hugh Exp $ */
2
3	/*
4	* Win32 Unified Handle Manager for OS/2
5	*
6	* 1998/02/11 PH Patrick Haller (haller@zebra.fh-weingarten.de)
7	*
8	* @(#) HandleManager.Cpp 1.0.0 1998/02/11 PH start
9	*
10	* Project Odin Software License can be found in LICENSE.TXT
11	*
12	*/
13
14	//#undef DEBUG_LOCAL
15	#define DEBUG_LOCAL
16
17
18	/*****************************************************************************
19	* Remark *
20	*****************************************************************************
21
22	1998/02/11 PH Even overlapped I/O could be simulated by another subsystem
23	thread with a request queue. We'll see if required ...
24
25
26	Flush (flush handle buffer)
27	WaitForSingleObject
28	WaitForMultipleObjects (?)
29
30	1998/02/12 PH IBM and Microsoft disagree about the definition of FILE_TYPE_xxx
31	Interesting, Open32 returns Microsoft's values ...
32
33	1998/02/12 PH Handles should be equipped with a locking mechanism, in particular
34	as we publish a pointer into the handle table via HMHandleQueryHandleData
35
36	*/
37
38
39	/*****************************************************************************
40	* Includes *
41	*****************************************************************************/
42
43	#include <os2win.h>
44	#include <stdlib.h>
45	#include <string.h>
46
47	#include "unicode.h"
48	#include "misc.h"
49
50	#include "HandleManager.H"
51	#include "HMDevice.h"
52	#include "HMDisk.h"
53	#include "HMOpen32.h"
54	#include "HMEvent.h"
55	#include "HMFile.h"
56	#include "HMMutex.h"
57	#include "HMSemaphore.h"
58	#include "HMMMap.h"
59	#include "HMComm.h"
60	#include "HMToken.h"
61	#include "HMThread.h"
62	#include "HMNPipe.h"
63	#include <vmutex.h>
64
65	#define DBG_LOCALLOG DBG_handlemanager
66	#include "dbglocal.h"
67
68	/*****************************************************************************
69	* Defines *
70	*****************************************************************************/
71
72	/* this is the size of our currently static handle table */
73	#define MAX_OS2_HMHANDLES 4096
74
75
76	/*****************************************************************************
77	* Structures *
78	*****************************************************************************/
79
80	typedef struct _HMDEVICE;
81
82	typedef struct _HMHANDLE
83	{
84	HMDeviceHandler pDeviceHandler; / handler for this pseudo-device */
85	HMHANDLEDATA hmHandleData; /* attributes of the handle */
86	} HMHANDLE, *PHMHANDLE;
87
88
89	typedef struct _HMDEVICE
90	{
91	struct _HMDEVICE pNext; / pointer to next device in chain */
92
93	LPSTR pszDeviceName; /* name or alias of the pseudo-device */
94	HMDeviceHandler pDeviceHandler; / handler for this pseudo-device */
95	VOID pDevData; / Pointer To Device data */
96	} HMDEVICE, *PHMDEVICE;
97
98
99	/*****************************************************************************
100	* This pseudo-device logs all device requests to the logfile and returns *
101	* ERROR_INVALID_FUNCTION to virtually all requests -> debugging *
102	*****************************************************************************/
103	class HMDeviceDebugClass : public HMDeviceHandler
104	{
105	public:
106	HMDeviceDebugClass(LPCSTR lpDeviceName) : HMDeviceHandler(lpDeviceName) {}
107	};
108
109
110	/*****************************************************************************
111	* Process Global Structures *
112	*****************************************************************************/
113
114
115	/* the device name is repeated here to enable device alias names */
116	static PHMDEVICE TabWin32Devices = NULL;
117
118	static HMHANDLE TabWin32Handles[MAX_OS2_HMHANDLES]; /* static handle table */
119	VMutex handleMutex;
120
121	struct _HMGlobals
122	{
123	HANDLE hStandardIn; /* stdin handle to CONIN$ */
124	HANDLE hStandardOut; /* stdout handle to CONOUT$ */
125	HANDLE hStandardError; /* stderr handle to CONOUT$ */
126
127	BOOL fIsInitialized; /* if HM is initialized already ? */
128	/* this MUST !!! be false initially */
129
130	HMDeviceHandler pHMOpen32; / default handle manager instance */
131	HMDeviceHandler pHMEvent; / static instances of subsystems */
132	HMDeviceHandler *pHMFile;
133	HMDeviceHandler *pHMDisk;
134	HMDeviceHandler *pHMMutex;
135	HMDeviceHandler *pHMSemaphore;
136	HMDeviceHandler pHMFileMapping; / static instances of subsystems */
137	HMDeviceHandler pHMComm; / serial communication */
138	HMDeviceHandler pHMToken; / security tokens */
139	HMDeviceHandler *pHMThread;
140	HMDeviceHandler *pHMNamedPipe;
141
142	ULONG ulHandleLast; /* index of last used handle */
143	} HMGlobals;
144
145
146	/*****************************************************************************
147	* Local Prototypes *
148	*****************************************************************************/
149
150	/* get appropriate device handler by the device name */
151	static HMDeviceHandler* _Optlink _HMDeviceFind(LPSTR pszDeviceName);
152
153	/* get next free handle from the handle table */
154	static ULONG _Optlink _HMHandleGetFree(void);
155
156	/* get handle table entry from handle */
157	static ULONG _Optlink _HMHandleQuery(HANDLE hHandle);
158
159	// Get GlobalDeviceData
160	static VOID *_HMDeviceGetData (LPSTR pszDeviceName);
161
162
163	/*****************************************************************************
164	* Name : static HMDeviceHandler * _HMDeviceFind
165	* Purpose : obtain appropriate device handler from the table by searching
166	* for a device name or alias
167	* Parameters: PSZ pszDeviceName
168	* Variables :
169	* Result : HMDeviceHandler * - pointer to the handler object
170	* Remark :
171	* Status :
172	*
173	* Author : Patrick Haller [Wed, 1998/02/11 20:42]
174	*****************************************************************************/
175
176	static HMDeviceHandler *_HMDeviceFind (LPSTR pszDeviceName)
177	{
178	PHMDEVICE pHMDevice; /* iterator over the device table */
179
180	if (pszDeviceName != NULL) {
181	for (pHMDevice = TabWin32Devices; /* loop over all devices in the table */
182	pHMDevice != NULL;
183	pHMDevice = pHMDevice->pNext)
184	{
185	if (stricmp(pHMDevice->pszDeviceName, /* case-insensitive search */
186	pszDeviceName) == 0)
187	return (pHMDevice->pDeviceHandler); /* OK, we've found our device */
188	}
189	}
190	int namelength = strlen(pszDeviceName);
191
192	//SvL: \\.\x: -> drive x (i.e. \\.\C:)
193	// \\.\PHYSICALDRIVEn -> drive n (n>=0)
194	if((strncmp(pszDeviceName, "\\\\.\\", 4) == 0) &&
195	namelength == 6 && pszDeviceName[5] == ':')
196	{
197	return HMGlobals.pHMDisk;
198	}
199	if((strncmp(pszDeviceName, "\\\\.\\PHYSICALDRIVE", 17) == 0) && namelength == 18) {
200	return HMGlobals.pHMDisk;
201	}
202
203	return (HMGlobals.pHMOpen32); /* haven't found anything, return default */
204	}
205	/*****************************************************************************
206	* Name : static VOID *_HMDeviceGetData
207	* Purpose : obtain pointer to device data from the table by searching
208	* for a device name or alias
209	* Parameters: PSZ pszDeviceName
210	* Variables :
211	* Result : VOID * - pointer to the handlers device data
212	* Remark :
213	* Status :
214	*
215	* Author : Markus Montkowski
216	*****************************************************************************/
217
218	static VOID *_HMDeviceGetData (LPSTR pszDeviceName)
219	{
220	PHMDEVICE pHMDevice; /* iterator over the device table */
221
222	if (pszDeviceName != NULL)
223	for (pHMDevice = TabWin32Devices; /* loop over all devices in the table */
224	pHMDevice != NULL;
225	pHMDevice = pHMDevice->pNext)
226	{
227	if (stricmp(pHMDevice->pszDeviceName, /* case-insensitive search */
228	pszDeviceName) == 0)
229	return (pHMDevice->pDevData); /* OK, we've found our device */
230	}
231
232	return (NULL); /* haven't found anything, return NULL */
233	}
234
235	/*****************************************************************************
236	* Name : static int _HMHandleGetFree
237	* Purpose : get index to first free handle in the handle table
238	* Parameters:
239	* Variables :
240	* Result : int iIndex - index to the table or -1 in case of error
241	* Remark :
242	* Status :
243	*
244	* Author : Patrick Haller [Wed, 1998/02/11 20:43]
245	*****************************************************************************/
246
247	static ULONG _HMHandleGetFree(void)
248	{
249	register ULONG ulLoop;
250
251	handleMutex.enter();
252
253	for (ulLoop = 1; // @@@PH Note, this is an experimental change
254	// 0L as hHandle is sometimes considered invalid!
255	// this will never return 0l as free handle now.
256	ulLoop < MAX_OS2_HMHANDLES;
257	ulLoop++)
258	{
259	/* free handle found ? */
260	if (INVALID_HANDLE_VALUE == TabWin32Handles[ulLoop].hmHandleData.hHMHandle) {
261	TabWin32Handles[ulLoop].hmHandleData.dwUserData = 0;
262	TabWin32Handles[ulLoop].hmHandleData.dwInternalType = HMTYPE_UNKNOWN;
263	TabWin32Handles[ulLoop].hmHandleData.lpDeviceData = NULL;
264	handleMutex.leave();
265	return (ulLoop); /* OK, then return it to the caller */
266	}
267	}
268
269	handleMutex.leave();
270	return (INVALID_HANDLE_VALUE); /* haven't found any free handle */
271	}
272
273
274	/*****************************************************************************
275	* Name : HMHandleGetUserData
276	* Purpose : Get the dwUserData dword for a specific handle
277	* Parameters: HANDLE hHandle
278	* Variables :
279	* Result : -1 or dwUserData
280	* Remark :
281	* Status :
282	*
283	* Author : SvL
284	*****************************************************************************/
285	DWORD HMHandleGetUserData(ULONG hHandle)
286	{
287	if (hHandle > MAX_OS2_HMHANDLES) /* check the table range */
288	return (-1);
289	/* Oops, invalid handle ! */
290	if (INVALID_HANDLE_VALUE == TabWin32Handles[hHandle].hmHandleData.hHMHandle)
291	return (-1); /* nope, ERROR_INVALID_HANDLE */
292
293	return TabWin32Handles[hHandle].hmHandleData.dwUserData;
294	}
295
296	/*****************************************************************************
297	* Name : static int _HMHandleQuery
298	* Purpose : gets the index of handle table entry as fast as possible from
299	* the specified handle
300	* Parameters: HANDLE hHandle
301	* Variables :
302	* Result : index or -1 in case of error
303	* Remark :
304	* Status :
305	*
306	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
307	*****************************************************************************/
308
309	static ULONG _HMHandleQuery(HANDLE hHandle)
310	{
311	if (hHandle > MAX_OS2_HMHANDLES) /* check the table range */
312	return (INVALID_HANDLE_VALUE); /* nope, ERROR_INVALID_HANDLE */
313
314	/* Oops, invalid handle ! */
315	if (INVALID_HANDLE_VALUE == TabWin32Handles[hHandle].hmHandleData.hHMHandle)
316	return (INVALID_HANDLE_VALUE); /* nope, ERROR_INVALID_HANDLE */
317
318	return ( hHandle); /* OK, we've got our handle index */
319	}
320
321
322	/*****************************************************************************
323	* Name : DWORD HMDeviceRegister
324	* Purpose : register a device with the handle manager
325	* Parameters: PSZ pszDeviceName
326	* HMDeviceHandler *pDeviceHandler
327	* Variables :
328	* Result : API returncode
329	* Remark :
330	* Status :
331	*
332	* Author : Patrick Haller [Wed, 1998/02/12 20:44]
333	*****************************************************************************/
334
335	DWORD HMDeviceRegisterEx(LPSTR pszDeviceName,
336	HMDeviceHandler *pDeviceHandler,
337	VOID *pDevData)
338	{
339	PHMDEVICE pHMDevice; /* our new device to be allocated */
340
341	if ( (pszDeviceName == NULL) \|\| /* check parameters */
342	(pDeviceHandler == NULL) )
343	return (ERROR_INVALID_PARAMETER); /* raise error conditon */
344
345
346	pHMDevice = (PHMDEVICE) malloc (sizeof (HMDEVICE) ); /* allocate memory */
347	if (pHMDevice == NULL) /* check proper allocation */
348	return (ERROR_NOT_ENOUGH_MEMORY); /* signal error */
349
350	pHMDevice->pszDeviceName = strdup(pszDeviceName); /* copy name */
351	if (pHMDevice->pszDeviceName == NULL) /* check proper allocation */
352	{
353	free (pHMDevice); /* free previously allocated memory */
354	return (ERROR_NOT_ENOUGH_MEMORY); /* signal error */
355	}
356
357	pHMDevice->pDeviceHandler = pDeviceHandler; /* store pointer to device */
358	pHMDevice->pNext = TabWin32Devices; /* establish linkage */
359	pHMDevice->pDevData = pDevData;
360
361	TabWin32Devices = pHMDevice; /* insert new node as root in the list */
362
363	return (NO_ERROR);
364	}
365
366	DWORD HMDeviceRegister(LPSTR pszDeviceName,
367	HMDeviceHandler *pDeviceHandler)
368	{
369	return HMDeviceRegisterEx(pszDeviceName, pDeviceHandler, NULL);
370	}
371
372	/*****************************************************************************
373	* Name : DWORD HMInitialize
374	* Purpose : Initialize the handlemanager
375	* Parameters: -
376	* Variables : -
377	* Result : always NO_ERROR
378	* Remark : this routine just stores the standard handles in the
379	* internal table within the HandleManager
380	* Status :
381	*
382	* Author : Patrick Haller [Wed, 1998/02/12 20:44]
383	*****************************************************************************/
384
385	DWORD HMInitialize(void)
386	{
387	ULONG ulIndex;
388
389	if (HMGlobals.fIsInitialized != TRUE)
390	{
391	HMGlobals.fIsInitialized = TRUE; /* OK, done */
392
393	handleMutex.enter();
394	// fill handle table
395	for(ulIndex = 0; ulIndex < MAX_OS2_HMHANDLES; ulIndex++) {
396	TabWin32Handles[ulIndex].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
397	}
398	handleMutex.leave();
399
400	dprintf(("KERNEL32:HandleManager:HMInitialize() storing handles.\n"));
401
402	memset(&HMGlobals, /* zero out the structure first */
403	0,
404	sizeof(HMGlobals));
405
406	/* copy standard handles from OS/2's Open32 Subsystem */
407	HMSetStdHandle(STD_INPUT_HANDLE, O32_GetStdHandle(STD_INPUT_HANDLE));
408	HMSetStdHandle(STD_OUTPUT_HANDLE, O32_GetStdHandle(STD_OUTPUT_HANDLE));
409	HMSetStdHandle(STD_ERROR_HANDLE, O32_GetStdHandle(STD_ERROR_HANDLE));
410
411	/* create handle manager instance for Open32 handles */
412	HMGlobals.pHMOpen32 = new HMDeviceOpen32Class("\\\\.\\");
413	HMGlobals.pHMEvent = new HMDeviceEventClass("\\\\EVENT\\");
414	HMGlobals.pHMFile = new HMDeviceFileClass("\\\\FILE\\");
415	HMGlobals.pHMDisk = new HMDeviceDiskClass("\\\\DISK\\");
416	HMGlobals.pHMMutex = new HMDeviceMutexClass("\\\\MUTEX\\");
417	HMGlobals.pHMSemaphore = new HMDeviceSemaphoreClass("\\\\SEM\\");
418	HMGlobals.pHMFileMapping= new HMDeviceMemMapClass("\\\\MEMMAP\\");
419	HMGlobals.pHMComm = new HMDeviceCommClass("\\\\COM\\");
420	HMGlobals.pHMToken = new HMDeviceTokenClass("\\\\TOKEN\\");
421	HMGlobals.pHMThread = new HMDeviceThreadClass("\\\\THREAD\\");
422	HMGlobals.pHMNamedPipe = new HMDeviceNamedPipeClass("\\\\PIPE\\");
423	}
424	return (NO_ERROR);
425	}
426
427
428	/*****************************************************************************
429	* Name : DWORD HMTerminate
430	* Purpose : Terminate the handlemanager
431	* Parameters:
432	* Variables :
433	* Result :
434	* Remark :
435	* Status :
436	*
437	* Author : Patrick Haller [Wed, 1998/02/12 20:44]
438	*****************************************************************************/
439
440	DWORD HMTerminate(void)
441	{
442	/* @@@PH we could deallocate the device list here */
443
444	if(HMGlobals.pHMOpen32)
445	delete HMGlobals.pHMOpen32;
446	if(HMGlobals.pHMEvent)
447	delete HMGlobals.pHMEvent;
448	if(HMGlobals.pHMFile)
449	delete HMGlobals.pHMFile;
450	if(HMGlobals.pHMMutex)
451	delete HMGlobals.pHMMutex;
452	if(HMGlobals.pHMSemaphore)
453	delete HMGlobals.pHMSemaphore;
454	if(HMGlobals.pHMFileMapping)
455	delete HMGlobals.pHMFileMapping;
456	if(HMGlobals.pHMComm)
457	delete HMGlobals.pHMComm;
458	if(HMGlobals.pHMToken)
459	delete HMGlobals.pHMToken;
460	if(HMGlobals.pHMThread)
461	delete HMGlobals.pHMThread;
462	if(HMGlobals.pHMNamedPipe)
463	delete HMGlobals.pHMNamedPipe;
464	if(HMGlobals.pHMDisk)
465	delete HMGlobals.pHMDisk;
466
467	return (NO_ERROR);
468	}
469
470
471	/*****************************************************************************/
472	/* handle translation buffer management */
473	/* */
474	/* Since some Win32 applications rely (!) on 16-bit handles, we've got to do */
475	/* 32-bit to 16-bit and vs vsa translation here. */
476	/* Filehandle-based functions should be routed via the handlemanager instead */
477	/* of going to Open32 directly. */
478	/*****************************************************************************/
479
480
481	/*****************************************************************************
482	* Name : DWORD HMHandleAllocate
483	* Purpose : allocate a handle in the translation table
484	* Parameters: PULONG pHandle16 - to return the allocated handle
485	* ULONG hHandle32 - the associated OS/2 handle
486	* Variables :
487	* Result : API returncode
488	* Remark : no parameter checking is done, phHandle may not be invalid
489	* hHandle32 shouldn't be 0
490	* Should be protected with a HM-Mutex !
491	* Status :
492	*
493	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
494	*****************************************************************************/
495
496	DWORD HMHandleAllocate (PULONG phHandle16,
497	ULONG hHandleOS2)
498	{
499	register ULONG ulHandle;
500
501	#ifdef DEBUG_LOCAL
502	dprintf(("KERNEL32: HMHandleAllocate (%08xh,%08xh)\n",
503	phHandle16,
504	hHandleOS2));
505	#endif
506
507	ulHandle = HMGlobals.ulHandleLast; /* get free handle */
508
509	handleMutex.enter();
510
511	if(ulHandle == 0) {
512	ulHandle = 1; //SvL: Start searching from index 1
513	}
514	do
515	{
516	/* check if handle is free */
517	if (TabWin32Handles[ulHandle].hmHandleData.hHMHandle == INVALID_HANDLE_VALUE)
518	{
519	*phHandle16 = ulHandle;
520	TabWin32Handles[ulHandle].hmHandleData.hHMHandle = hHandleOS2;
521	TabWin32Handles[ulHandle].hmHandleData.lpDeviceData = NULL;
522	HMGlobals.ulHandleLast = ulHandle; /* to shorten search times */
523
524	handleMutex.leave();
525	return (NO_ERROR); /* OK */
526	}
527
528	ulHandle++; /* skip to next entry */
529
530	if (ulHandle >= MAX_OS2_HMHANDLES) /* check boundary */
531	ulHandle = 1;
532	}
533	while (ulHandle != HMGlobals.ulHandleLast);
534
535	handleMutex.leave();
536
537	return (ERROR_TOO_MANY_OPEN_FILES); /* OK, we're done */
538	}
539
540
541	/*****************************************************************************
542	* Name : DWORD HMHandleFree
543	* Purpose : free a handle from the translation table
544	* Parameters: ULONG hHandle16 - the handle to be freed
545	* Variables :
546	* Result : API returncode
547	* Remark : no parameter checking is done, hHandle16 MAY NEVER exceed
548	* the MAX_TRANSLATION_HANDLES boundary
549	* Status :
550	*
551	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
552	*****************************************************************************/
553
554	DWORD HMHandleFree (ULONG hHandle16)
555	{
556	ULONG rc; /* API returncode */
557
558	#ifdef DEBUG_LOCAL
559	dprintf(("KERNEL32: HMHandleFree (%08xh)\n",
560	hHandle16));
561	#endif
562
563	rc = HMHandleValidate(hHandle16); /* verify handle */
564	if (rc != NO_ERROR) /* check errors */
565	return (rc); /* raise error condition */
566
567	TabWin32Handles[hHandle16].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
568	/* OK, done */
569
570	return (NO_ERROR);
571	}
572
573
574	/*****************************************************************************
575	* Name : DWORD HMHandleValidate
576	* Purpose : validate a handle through the translation table
577	* Parameters: ULONG hHandle16 - the handle to be verified
578	* Variables :
579	* Result : API returncode
580	* Remark :
581	* Status :
582	*
583	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
584	*****************************************************************************/
585
586	DWORD HMHandleValidate (ULONG hHandle16)
587	{
588	#ifdef DEBUG_LOCAL
589	dprintf(("KERNEL32: HMHandleValidate (%08xh)\n",
590	hHandle16));
591	#endif
592
593	if (hHandle16 >= MAX_OS2_HMHANDLES) /* check boundary */
594	return (ERROR_INVALID_HANDLE); /* raise error condition */
595
596	if (TabWin32Handles[hHandle16].hmHandleData.hHMHandle == INVALID_HANDLE_VALUE)
597	/* valid ? */
598	return (ERROR_INVALID_HANDLE); /* raise error condition */
599
600	return (NO_ERROR);
601	}
602
603
604	/*****************************************************************************
605	* Name : DWORD HMHandleTranslateToWin
606	* Purpose : translate a 32-bit OS/2 handle to the associated windows handle
607	* Parameters: ULONG hHandle32 - the OS/2 handle
608	* PULONG phHandle16 - the associated windows handle
609	* Variables :
610	* Result : API returncode
611	* Remark :
612	* Status :
613	*
614	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
615	*****************************************************************************/
616
617	DWORD HMHandleTranslateToWin (ULONG hHandleOS2,
618	PULONG phHandle16)
619	{
620	ULONG rc; /* API returncode */
621	register ULONG ulIndex; /* index counter over the table */
622
623	#ifdef DEBUG_LOCAL
624	dprintf(("KERNEL32: HMHandleTranslateToWin (%08xh, %08xh)\n",
625	hHandleOS2,
626	phHandle16));
627	#endif
628
629	for (ulIndex = 1;
630	ulIndex < MAX_OS2_HMHANDLES;
631	ulIndex++)
632	{
633	/* look for the handle */
634	if (TabWin32Handles[ulIndex].hmHandleData.hHMHandle == hHandleOS2)
635	{
636	phHandle16 = ulIndex; / deliver result */
637	return (NO_ERROR); /* OK */
638	}
639	}
640
641	return (ERROR_INVALID_HANDLE); /* raise error condition */
642	}
643
644
645	/*****************************************************************************
646	* Name : DWORD HMHandleTranslateToOS2
647	* Purpose : translate a 16-bit Win32 handle to the associated OS/2 handle
648	* Parameters: ULONG hHandle16 - the windows handle
649	* PULONG phHandle32 - the associated OS/2 handle
650	* Variables :
651	* Result : API returncode
652	* Remark :
653	* Status :
654	*
655	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
656	*****************************************************************************/
657
658	DWORD HMHandleTranslateToOS2 (ULONG hHandle16,
659	PULONG phHandleOS2)
660	{
661	#ifdef DEBUG_LOCAL
662	dprintf(("KERNEL32: HMHandleTranslateToOS2 (%08xh, %08xh)\n",
663	hHandle16,
664	phHandleOS2));
665	#endif
666
667	if (HMHandleValidate(hHandle16) == NO_ERROR) /* verify handle */
668	{
669	*phHandleOS2 = TabWin32Handles[hHandle16].hmHandleData.hHMHandle;
670	return (NO_ERROR);
671	}
672
673	return (ERROR_INVALID_HANDLE); /* raise error condition */
674	}
675
676
677	/*****************************************************************************
678	* Name : DWORD HMHandleTranslateToOS2i
679	* Purpose : translate a 16-bit Win32 handle to the associated OS/2 handle
680	* Parameters: ULONG hHandle16 - the windows handle
681	* Variables :
682	* Result : OS/2 handle
683	* Remark : no checkinf
684	* Status :
685	*
686	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
687	*****************************************************************************/
688
689	DWORD HMHandleTranslateToOS2i (ULONG hHandle16)
690	{
691	#ifdef DEBUG_LOCAL
692	dprintf(("KERNEL32: HMHandleTranslateToOS2i (%08xh)\n",
693	hHandle16));
694	#endif
695
696	return(TabWin32Handles[hHandle16].hmHandleData.hHMHandle);
697	}
698
699
700
701	/*****************************************************************************
702	* Name : HANDLE _HMGetStdHandle
703	* Purpose : replacement for Open32's GetStdHandle function
704	* Parameters: DWORD nStdHandle
705	* Variables :
706	* Result : HANDLE to standard device
707	* Remark :
708	* Status :
709	*
710	* Author : Patrick Haller [Wed, 1998/02/12 20:44]
711	*****************************************************************************/
712
713	HANDLE HMGetStdHandle(DWORD nStdHandle)
714	{
715	switch (nStdHandle)
716	{
717	case STD_INPUT_HANDLE: return (HMGlobals.hStandardIn);
718	case STD_OUTPUT_HANDLE: return (HMGlobals.hStandardOut);
719	case STD_ERROR_HANDLE: return (HMGlobals.hStandardError);
720
721	default:
722	{
723	SetLastError(ERROR_INVALID_PARAMETER); /* set error information */
724	return (INVALID_HANDLE_VALUE); /* raise error condition */
725	}
726	}
727	}
728
729
730	/*****************************************************************************
731	* Name : HANDLE _HMSetStdHandle
732	* Purpose : replacement for Open32's SetStdHandle function
733	* Parameters: DWORD nStdHandle
734	* HANDLE hHandle
735	* Variables :
736	* Result : BOOL fSuccess
737	* Remark :
738	* Status :
739	*
740	* Author : Patrick Haller [Wed, 1998/02/12 20:44]
741	*****************************************************************************/
742
743	BOOL HMSetStdHandle(DWORD nStdHandle,
744	HANDLE hHandle)
745	{
746	switch (nStdHandle)
747	{
748	case STD_INPUT_HANDLE: HMGlobals.hStandardIn = hHandle; return TRUE;
749	case STD_OUTPUT_HANDLE: HMGlobals.hStandardOut = hHandle; return TRUE;
750	case STD_ERROR_HANDLE: HMGlobals.hStandardError = hHandle; return TRUE;
751
752	default:
753	{
754	SetLastError(ERROR_INVALID_PARAMETER); /* set error information */
755	return (FALSE); /* raise error condition */
756	}
757	}
758	}
759
760
761	/*****************************************************************************
762	* Name : HANDLE HMDuplicateHandle
763	* Purpose : replacement for Open32's HMDuplicateHandle function
764	* Parameters:
765	*
766	* Variables :
767	* Result : BOOL fSuccess
768	* Remark :
769	* Status :
770	*
771	* Author : Sander van Leeuwen [Wed, 1999/08/25 15:44]
772	*****************************************************************************/
773
774	BOOL HMDuplicateHandle(HANDLE srcprocess,
775	HANDLE srchandle,
776	HANDLE destprocess,
777	PHANDLE desthandle,
778	DWORD fdwAccess,
779	BOOL fInherit,
780	DWORD fdwOptions,
781	DWORD fdwOdinOptions)
782	{
783	int iIndex; /* index into the handle table */
784	int iIndexNew; /* index into the handle table */
785	HMDeviceHandler pDeviceHandler; / device handler for this handle */
786	PHMHANDLEDATA pHMHandleData;
787	BOOL rc; /* API return code */
788
789	if(HMHandleValidate(srchandle) != NO_ERROR)
790	{
791	dprintf(("KERNEL32: HMDuplicateHandle: invalid handle %x", srchandle));
792	SetLastError(ERROR_INVALID_HANDLE); /* use this as error message */
793	return FALSE;
794	}
795
796	pDeviceHandler = TabWin32Handles[srchandle].pDeviceHandler; /* device is predefined */
797	iIndexNew = _HMHandleGetFree(); /* get free handle */
798	if (-1 == iIndexNew) /* oops, no free handles ! */
799	{
800	SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
801	return FALSE; /* signal error */
802	}
803
804	/* initialize the complete HMHANDLEDATA structure */
805	pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
806	pHMHandleData->dwType = TabWin32Handles[srchandle].hmHandleData.dwType;
807	if (fdwOptions & DUPLICATE_SAME_ACCESS)
808	pHMHandleData->dwAccess = TabWin32Handles[srchandle].hmHandleData.dwAccess;
809	else
810	pHMHandleData->dwAccess = fdwAccess;
811
812	if((fdwOdinOptions & DUPLICATE_ACCESS_READWRITE) == DUPLICATE_ACCESS_READWRITE) {
813	pHMHandleData->dwAccess = GENERIC_READ \| GENERIC_WRITE;
814	}
815	else
816	if(fdwOdinOptions & DUPLICATE_ACCESS_READ) {
817	pHMHandleData->dwAccess = GENERIC_READ;
818	}
819
820	if(fdwOdinOptions & DUPLICATE_SHARE_READ) {
821	pHMHandleData->dwShare = FILE_SHARE_READ;
822	}
823	else
824	if(fdwOdinOptions & DUPLICATE_SHARE_DENYNONE) {
825	pHMHandleData->dwShare = FILE_SHARE_READ \| FILE_SHARE_WRITE;
826	}
827	else pHMHandleData->dwShare = TabWin32Handles[srchandle].hmHandleData.dwShare;
828
829	pHMHandleData->dwCreation = TabWin32Handles[srchandle].hmHandleData.dwCreation;
830	pHMHandleData->dwFlags = TabWin32Handles[srchandle].hmHandleData.dwFlags;
831	pHMHandleData->lpHandlerData = TabWin32Handles[srchandle].hmHandleData.lpHandlerData;
832
833
834	/* we've got to mark the handle as occupied here, since another device */
835	/* could be created within the device handler -> deadlock */
836
837	/* write appropriate entry into the handle table if open succeeded */
838	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
839	TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
840	/* call the device handler */
841	rc = pDeviceHandler->DuplicateHandle(&TabWin32Handles[iIndexNew].hmHandleData,
842	srcprocess,
843	&TabWin32Handles[srchandle].hmHandleData,
844	destprocess,
845	desthandle,
846	fdwAccess,
847	fInherit,
848	fdwOptions & ~DUPLICATE_CLOSE_SOURCE,
849	fdwOdinOptions);
850
851	//Don't let Open32 close it for us, but do it manually (regardless of error; see SDK docs))
852	if (fdwOptions & DUPLICATE_CLOSE_SOURCE)
853	HMCloseHandle(srchandle);
854
855	if(rc == FALSE) /* oops, creation failed within the device handler */
856	{
857	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
858	return FALSE; /* signal error */
859	}
860	else
861	SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
862
863	*desthandle = iIndexNew;
864	return TRUE; /* return valid handle */
865	}
866
867	/*****************************************************************************
868	* Name : HANDLE HMCreateFile
869	* Purpose : Wrapper for the CreateFile() API
870	* Parameters:
871	* Variables :
872	* Result :
873	* Remark : Fix parameters passed to the HMDeviceManager::CreateFile
874	* Supply access mode and share mode validation routines
875	* Status :
876	*
877	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
878	*****************************************************************************/
879
880	HFILE HMCreateFile(LPCSTR lpFileName,
881	DWORD dwDesiredAccess,
882	DWORD dwShareMode,
883	LPSECURITY_ATTRIBUTES lpSecurityAttributes,
884	DWORD dwCreationDisposition,
885	DWORD dwFlagsAndAttributes,
886	HANDLE hTemplateFile)
887	{
888	int iIndex; /* index into the handle table */
889	int iIndexNew; /* index into the handle table */
890	HMDeviceHandler pDeviceHandler; / device handler for this handle */
891	HANDLE hResult;
892	DWORD rc; /* API return code */
893	PHMHANDLEDATA pHMHandleData;
894	HMHANDLEDATA HMHandleTemp; /* temporary buffer for handle data */
895	VOID *pDevData;
896
897	/* create new handle by either lpFileName or hTemplateFile */
898	if (lpFileName == NULL) /* this indicates creation from template */
899	{
900	iIndex = _HMHandleQuery(hTemplateFile); /* query table for template */
901	if (-1 == iIndex) /* this device is unknown to us */
902	{
903	SetLastError (ERROR_INVALID_HANDLE);
904	return INVALID_HANDLE_VALUE;
905	}
906	else
907	{
908	/* to pass to handler */
909	pHMHandleData = &TabWin32Handles[iIndex].hmHandleData;
910	pDeviceHandler = TabWin32Handles[iIndex].pDeviceHandler;
911	}
912	}
913	else
914	{
915	pDeviceHandler = _HMDeviceFind((LPSTR)lpFileName); /* find device */
916	if (NULL == pDeviceHandler) /* this name is unknown to us */
917	{
918	SetLastError(ERROR_FILE_NOT_FOUND);
919	return (INVALID_HANDLE_VALUE); /* signal error */
920	}
921	else
922	pHMHandleData = NULL;
923
924	pDevData = _HMDeviceGetData((LPSTR)lpFileName);
925
926	if(pDeviceHandler == HMGlobals.pHMOpen32) {
927	pDeviceHandler = HMGlobals.pHMFile;
928	}
929	}
930
931
932	iIndexNew = _HMHandleGetFree(); /* get free handle */
933	if (-1 == iIndexNew) /* oops, no free handles ! */
934	{
935	SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
936	return (INVALID_HANDLE_VALUE); /* signal error */
937	}
938
939
940	/* initialize the complete HMHANDLEDATA structure */
941	if (lpFileName == NULL) /* create from template */
942	memcpy (&HMHandleTemp,
943	&TabWin32Handles[iIndex].hmHandleData,
944	sizeof(HMHANDLEDATA));
945	else
946	{
947	HMHandleTemp.dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
948	HMHandleTemp.dwAccess = dwDesiredAccess;
949	HMHandleTemp.dwShare = dwShareMode;
950	HMHandleTemp.dwCreation = dwCreationDisposition;
951	HMHandleTemp.dwFlags = dwFlagsAndAttributes;
952	HMHandleTemp.lpHandlerData = NULL;
953	HMHandleTemp.lpDeviceData = pDevData;
954	}
955
956	/* we've got to mark the handle as occupied here, since another device */
957	/* could be created within the device handler -> deadlock */
958
959	/* write appropriate entry into the handle table if open succeeded */
960	HMHandleTemp.hHMHandle = iIndexNew;
961	TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
962	/* now copy back our temporary handle data */
963	memcpy(&TabWin32Handles[iIndexNew].hmHandleData,
964	&HMHandleTemp,
965	sizeof(HMHANDLEDATA));
966
967	rc = pDeviceHandler->CreateFile(lpFileName, /* call the device handler */
968	&HMHandleTemp,
969	lpSecurityAttributes,
970	pHMHandleData);
971
972	#ifdef DEBUG_LOCAL
973	dprintf(("KERNEL32/HandleManager:CheckPoint2: %s lpHandlerData=%08xh\n",
974	lpFileName,
975	HMHandleTemp.lpHandlerData));
976	#endif
977
978	if (rc != NO_ERROR) /* oops, creation failed within the device handler */
979	{
980	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
981	SetLastError(rc); /* Hehe, OS/2 and NT are pretty compatible :) */
982	return (INVALID_HANDLE_VALUE); /* signal error */
983	}
984	else
985	{
986	SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
987
988	/* copy data fields that might have been modified by CreateFile */
989	memcpy(&TabWin32Handles[iIndexNew].hmHandleData,
990	&HMHandleTemp,
991	sizeof(HMHANDLEDATA));
992	}
993
994
995	#ifdef DEBUG_LOCAL
996	dprintf(("KERNEL32/HandleManager: CreateFile(%s)=%08xh\n",
997	lpFileName,
998	iIndexNew));
999	#endif
1000
1001	return (HFILE)iIndexNew; /* return valid handle */
1002	}
1003
1004
1005	/*****************************************************************************
1006	* Name : HANDLE HMOpenFile
1007	* Purpose : Wrapper for the OpenFile() API
1008	* Parameters:
1009	* Variables :
1010	* Result :
1011	* Remark : Fix parameters passed to the HMDeviceManager::OpenFile
1012	* Supply access mode and share mode validation routines
1013	* Status :
1014	*
1015	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
1016	*****************************************************************************/
1017
1018
1019	/***********************************************************************
1020	* FILE_ConvertOFMode
1021	*
1022	* Convert OF_* mode into flags for CreateFile.
1023	*/
1024	static void FILE_ConvertOFMode( INT mode, DWORD access, DWORD sharing )
1025	{
1026	switch(mode & 0x03)
1027	{
1028	case OF_READ: *access = GENERIC_READ; break;
1029	case OF_WRITE: *access = GENERIC_WRITE; break;
1030	case OF_READWRITE: *access = GENERIC_READ \| GENERIC_WRITE; break;
1031	default: *access = 0; break;
1032	}
1033	switch(mode & 0x70)
1034	{
1035	case OF_SHARE_EXCLUSIVE: *sharing = 0; break;
1036	case OF_SHARE_DENY_WRITE: *sharing = FILE_SHARE_READ; break;
1037	case OF_SHARE_DENY_READ: *sharing = FILE_SHARE_WRITE; break;
1038	case OF_SHARE_DENY_NONE:
1039	case OF_SHARE_COMPAT:
1040	default: *sharing = FILE_SHARE_READ \| FILE_SHARE_WRITE; break;
1041	}
1042	}
1043
1044	HANDLE HMOpenFile(LPCSTR lpFileName,
1045	OFSTRUCT* pOFStruct,
1046	UINT fuMode)
1047	{
1048	int iIndex; /* index into the handle table */
1049	int iIndexNew; /* index into the handle table */
1050	HMDeviceHandler pDeviceHandler; / device handler for this handle */
1051	VOID *pDevData;
1052	PHMHANDLEDATA pHMHandleData;
1053	DWORD rc; /* API return code */
1054
1055
1056	pDeviceHandler = _HMDeviceFind((LPSTR)lpFileName); /* find device */
1057	if (NULL == pDeviceHandler) /* this name is unknown to us */
1058	{
1059	SetLastError(ERROR_FILE_NOT_FOUND);
1060	return (INVALID_HANDLE_VALUE); /* signal error */
1061	}
1062	else
1063	pHMHandleData = NULL;
1064
1065	pDevData = _HMDeviceGetData((LPSTR)lpFileName);
1066
1067	if(pDeviceHandler == HMGlobals.pHMOpen32) {
1068	pDeviceHandler = HMGlobals.pHMFile;
1069	}
1070
1071	iIndexNew = _HMHandleGetFree(); /* get free handle */
1072	if (-1 == iIndexNew) /* oops, no free handles ! */
1073	{
1074	SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
1075	return (INVALID_HANDLE_VALUE); /* signal error */
1076	}
1077
1078
1079	/* initialize the complete HMHANDLEDATA structure */
1080	pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
1081	pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
1082
1083	FILE_ConvertOFMode(fuMode, /* map OF_flags */
1084	&pHMHandleData->dwAccess,
1085	&pHMHandleData->dwShare);
1086
1087	//SvL; Must be OPEN_EXISTING because mmaps depend on it (to duplicate
1088	// the file handle when this handle is a parameter for CreateFileMappingA/W
1089	pHMHandleData->dwCreation = OPEN_EXISTING;
1090	pHMHandleData->dwFlags = 0;
1091	pHMHandleData->lpHandlerData = NULL;
1092	pHMHandleData->lpDeviceData = pDevData;
1093
1094	/* we've got to mark the handle as occupied here, since another device */
1095	/* could be created within the device handler -> deadlock */
1096
1097	/* write appropriate entry into the handle table if open succeeded */
1098	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
1099	TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
1100
1101	rc = pDeviceHandler->OpenFile (lpFileName, /* call the device handler */
1102	&TabWin32Handles[iIndexNew].hmHandleData,
1103	pOFStruct,
1104	fuMode);
1105
1106	#ifdef DEBUG_LOCAL
1107	dprintf(("KERNEL32/HandleManager:CheckPoint3: %s lpHandlerData=%08xh rc=%08xh\n",
1108	lpFileName,
1109	&TabWin32Handles[iIndexNew].hmHandleData.lpHandlerData,
1110	rc));
1111	#endif
1112
1113	if(rc != NO_ERROR) /* oops, creation failed within the device handler */
1114	{
1115	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
1116	SetLastError(pOFStruct->nErrCode);
1117	return (INVALID_HANDLE_VALUE); /* signal error */
1118	}
1119	else {
1120	if(fuMode & (OF_DELETE\|OF_EXIST)) {
1121	//file handle already closed
1122	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
1123	return TRUE; //TODO: correct?
1124	}
1125	if(fuMode & OF_PARSE) {
1126	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
1127	return 0;
1128	}
1129	if(fuMode & OF_VERIFY) {
1130	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
1131	return 1; //TODO: correct?
1132	}
1133	}
1134
1135	#ifdef DEBUG_LOCAL
1136	dprintf(("KERNEL32/HandleManager: OpenFile(%s)=%08xh\n",
1137	lpFileName,
1138	iIndexNew));
1139	#endif
1140
1141	return iIndexNew; /* return valid handle */
1142	}
1143
1144
1145
1146	/*****************************************************************************
1147	* Name : HANDLE HMCloseFile
1148	* Purpose : Wrapper for the CloseHandle() API
1149	* Parameters:
1150	* Variables :
1151	* Result :
1152	* Remark :
1153	* Status :
1154	*
1155	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
1156	*****************************************************************************/
1157
1158	BOOL HMCloseHandle(HANDLE hObject)
1159	{
1160	int iIndex; /* index into the handle table */
1161	BOOL fResult; /* result from the device handler's CloseHandle() */
1162	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1163
1164	/* validate handle */
1165	iIndex = _HMHandleQuery(hObject); /* get the index */
1166	if (-1 == iIndex) /* error ? */
1167	{
1168	//@@@PH it may occur someone closes e.g. a semaphore handle
1169	// which is not registered through the HandleManager yet.
1170	// so we try to pass on to Open32 instead.
1171	dprintf(("KERNEL32: HandleManager:HMCloseHandle(%08xh) passed on to Open32.\n",
1172	hObject));
1173
1174	fResult = O32_CloseHandle(hObject);
1175	return (fResult);
1176
1177	//SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1178	//return (FALSE); /* signal failure */
1179	}
1180
1181	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1182	//SvL: Check if pDeviceHandler is set
1183	if (pHMHandle->pDeviceHandler)
1184	{
1185	fResult = pHMHandle->pDeviceHandler->CloseHandle(&pHMHandle->hmHandleData);
1186	}
1187	else
1188	{
1189	dprintf(("HMCloseHAndle(%08xh): pDeviceHandler not set", hObject));
1190	fResult = TRUE;
1191	}
1192
1193	if (fResult == TRUE) /* remove handle if close succeeded */
1194	{
1195	pHMHandle->hmHandleData.hHMHandle = INVALID_HANDLE_VALUE; /* mark handle as free */
1196	SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
1197	}
1198
1199	return (fResult); /* deliver return code */
1200	}
1201
1202
1203	/*****************************************************************************
1204	* Name : HANDLE HMReadFile
1205	* Purpose : Wrapper for the ReadHandle() API
1206	* Parameters:
1207	* Variables :
1208	* Result :
1209	* Remark :
1210	* Status :
1211	*
1212	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
1213	*****************************************************************************/
1214
1215	BOOL HMReadFile(HANDLE hFile,
1216	LPVOID lpBuffer,
1217	DWORD nNumberOfBytesToRead,
1218	LPDWORD lpNumberOfBytesRead,
1219	LPOVERLAPPED lpOverlapped)
1220	{
1221	int iIndex; /* index into the handle table */
1222	BOOL fResult; /* result from the device handler's CloseHandle() */
1223	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1224
1225	/* validate handle */
1226	iIndex = _HMHandleQuery(hFile); /* get the index */
1227	if (-1 == iIndex) /* error ? */
1228	{
1229	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1230	return (FALSE); /* signal failure */
1231	}
1232
1233	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1234	fResult = pHMHandle->pDeviceHandler->ReadFile(&pHMHandle->hmHandleData,
1235	lpBuffer,
1236	nNumberOfBytesToRead,
1237	lpNumberOfBytesRead,
1238	lpOverlapped);
1239
1240	return (fResult); /* deliver return code */
1241	}
1242	/*****************************************************************************
1243	* Name : HANDLE HMReadFileEx
1244	* Purpose : Wrapper for the ReadFileEx() API
1245	* Parameters:
1246	* Variables :
1247	* Result :
1248	* Remark :
1249	* Status :
1250	*
1251	* Author : SvL
1252	*****************************************************************************/
1253	BOOL HMReadFileEx(HANDLE hFile,
1254	LPVOID lpBuffer,
1255	DWORD nNumberOfBytesToRead,
1256	LPOVERLAPPED lpOverlapped,
1257	LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
1258	{
1259	int iIndex; /* index into the handle table */
1260	BOOL fResult; /* result from the device handler's CloseHandle() */
1261	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1262
1263	/* validate handle */
1264	iIndex = _HMHandleQuery(hFile); /* get the index */
1265	if (-1 == iIndex) /* error ? */
1266	{
1267	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1268	return (FALSE); /* signal failure */
1269	}
1270
1271	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1272	fResult = pHMHandle->pDeviceHandler->ReadFileEx(&pHMHandle->hmHandleData,
1273	lpBuffer,
1274	nNumberOfBytesToRead,
1275	lpOverlapped,
1276	lpCompletionRoutine);
1277
1278	return (fResult); /* deliver return code */
1279	}
1280
1281	/*****************************************************************************
1282	* Name : HANDLE HMWriteFile
1283	* Purpose : Wrapper for the WriteHandle() API
1284	* Parameters:
1285	* Variables :
1286	* Result :
1287	* Remark :
1288	* Status :
1289	*
1290	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
1291	*****************************************************************************/
1292
1293	BOOL HMWriteFile(HANDLE hFile,
1294	LPCVOID lpBuffer,
1295	DWORD nNumberOfBytesToWrite,
1296	LPDWORD lpNumberOfBytesWritten,
1297	LPOVERLAPPED lpOverlapped)
1298	{
1299	int iIndex; /* index into the handle table */
1300	BOOL fResult; /* result from the device handler's CloseHandle() */
1301	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1302
1303	/* validate handle */
1304	iIndex = _HMHandleQuery(hFile); /* get the index */
1305	if (-1 == iIndex) /* error ? */
1306	{
1307	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1308	return (FALSE); /* signal failure */
1309	}
1310
1311	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1312	fResult = pHMHandle->pDeviceHandler->WriteFile(&pHMHandle->hmHandleData,
1313	lpBuffer,
1314	nNumberOfBytesToWrite,
1315	lpNumberOfBytesWritten,
1316	lpOverlapped);
1317
1318	return (fResult); /* deliver return code */
1319	}
1320
1321	/*****************************************************************************
1322	* Name : HANDLE HMWriteFileEx
1323	* Purpose : Wrapper for the WriteFileEx() API
1324	* Parameters:
1325	* Variables :
1326	* Result :
1327	* Remark :
1328	* Status :
1329	*
1330	* Author : SvL
1331	*****************************************************************************/
1332	BOOL HMWriteFileEx(HANDLE hFile,
1333	LPVOID lpBuffer,
1334	DWORD nNumberOfBytesToWrite,
1335	LPOVERLAPPED lpOverlapped,
1336	LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
1337	{
1338	int iIndex; /* index into the handle table */
1339	BOOL fResult; /* result from the device handler's CloseHandle() */
1340	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1341
1342	/* validate handle */
1343	iIndex = _HMHandleQuery(hFile); /* get the index */
1344	if (-1 == iIndex) /* error ? */
1345	{
1346	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1347	return (FALSE); /* signal failure */
1348	}
1349
1350	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1351	fResult = pHMHandle->pDeviceHandler->WriteFileEx(&pHMHandle->hmHandleData,
1352	lpBuffer,
1353	nNumberOfBytesToWrite,
1354	lpOverlapped,
1355	lpCompletionRoutine);
1356
1357	return (fResult); /* deliver return code */
1358	}
1359
1360
1361	/*****************************************************************************
1362	* Name : HANDLE HMGetFileType
1363	* Purpose : Wrapper for the GetFileType() API
1364	* Parameters:
1365	* Variables :
1366	* Result :
1367	* Remark :
1368	* Status :
1369	*
1370	* Author : Patrick Haller [Wed, 1998/02/12 13:37]
1371	*****************************************************************************/
1372
1373	DWORD HMGetFileType(HANDLE hFile)
1374	{
1375	int iIndex; /* index into the handle table */
1376	DWORD dwResult; /* result from the device handler's API */
1377	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1378
1379	/* validate handle */
1380	iIndex = _HMHandleQuery(hFile); /* get the index */
1381	if (-1 == iIndex) /* error ? */
1382	{
1383	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1384	return FILE_TYPE_UNKNOWN; /* signal failure */
1385	}
1386
1387	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1388	dwResult = pHMHandle->pDeviceHandler->GetFileType(&pHMHandle->hmHandleData);
1389
1390	return (dwResult); /* deliver return code */
1391	}
1392
1393
1394	/*****************************************************************************
1395	* Name : HMDeviceHandler::_DeviceReuqest
1396	* Purpose : entry method for special request functions
1397	* Parameters: ULONG ulRequestCode
1398	* various parameters as required
1399	* Variables :
1400	* Result :
1401	* Remark : the standard behaviour is to return an error code for non-
1402	* existant request codes
1403	* Status :
1404	*
1405	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
1406	*****************************************************************************/
1407
1408	DWORD HMDeviceRequest (HANDLE hFile,
1409	ULONG ulRequestCode,
1410	ULONG arg1,
1411	ULONG arg2,
1412	ULONG arg3,
1413	ULONG arg4)
1414	{
1415	int iIndex; /* index into the handle table */
1416	DWORD dwResult; /* result from the device handler's API */
1417	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1418
1419	/* validate handle */
1420	iIndex = _HMHandleQuery(hFile); /* get the index */
1421	if (-1 == iIndex) /* error ? */
1422	{
1423	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1424	return (INVALID_HANDLE_ERROR); /* signal failure */
1425	}
1426
1427	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1428	dwResult = pHMHandle->pDeviceHandler->_DeviceRequest(&pHMHandle->hmHandleData,
1429	ulRequestCode,
1430	arg1,
1431	arg2,
1432	arg3,
1433	arg4);
1434
1435	return (dwResult); /* deliver return code */
1436	}
1437
1438
1439	/*****************************************************************************
1440	* Name : HMDeviceHandler::GetFileInformationByHandle
1441	* Purpose : router function for GetFileInformationByHandle
1442	* Parameters:
1443	* Variables :
1444	* Result :
1445	* Remark :
1446	* Status :
1447	*
1448	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
1449	*****************************************************************************/
1450
1451	BOOL HMGetFileInformationByHandle (HANDLE hFile,
1452	BY_HANDLE_FILE_INFORMATION *pHFI)
1453	{
1454	int iIndex; /* index into the handle table */
1455	DWORD dwResult; /* result from the device handler's API */
1456	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1457
1458	/* validate handle */
1459	iIndex = _HMHandleQuery(hFile); /* get the index */
1460	if (-1 == iIndex) /* error ? */
1461	{
1462	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1463	return FALSE; /* signal failure */
1464	}
1465
1466	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1467	dwResult = pHMHandle->pDeviceHandler->GetFileInformationByHandle(&pHMHandle->hmHandleData,
1468	pHFI);
1469
1470	return (dwResult); /* deliver return code */
1471	}
1472
1473
1474	/*****************************************************************************
1475	* Name : HMDeviceHandler::SetEndOfFile
1476	* Purpose : router function for SetEndOfFile
1477	* Parameters:
1478	* Variables :
1479	* Result :
1480	* Remark :
1481	* Status :
1482	*
1483	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
1484	*****************************************************************************/
1485
1486	BOOL HMSetEndOfFile (HANDLE hFile)
1487	{
1488	int iIndex; /* index into the handle table */
1489	BOOL bResult; /* result from the device handler's API */
1490	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1491
1492	/* validate handle */
1493	iIndex = _HMHandleQuery(hFile); /* get the index */
1494	if (-1 == iIndex) /* error ? */
1495	{
1496	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1497	return FALSE; /* signal failure */
1498	}
1499
1500	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1501	bResult = pHMHandle->pDeviceHandler->SetEndOfFile(&pHMHandle->hmHandleData);
1502
1503	return (bResult); /* deliver return code */
1504	}
1505
1506
1507	/*****************************************************************************
1508	* Name : HMDeviceHandler::SetFileTime
1509	* Purpose : router function for SetFileTime
1510	* Parameters:
1511	* Variables :
1512	* Result :
1513	* Remark :
1514	* Status :
1515	*
1516	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
1517	*****************************************************************************/
1518
1519	BOOL HMSetFileTime (HANDLE hFile,
1520	const FILETIME *pFT1,
1521	const FILETIME *pFT2,
1522	const FILETIME *pFT3)
1523	{
1524	int iIndex; /* index into the handle table */
1525	BOOL bResult; /* result from the device handler's API */
1526	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1527
1528	/* validate handle */
1529	iIndex = _HMHandleQuery(hFile); /* get the index */
1530	if (-1 == iIndex) /* error ? */
1531	{
1532	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1533	return FALSE; /* signal failure */
1534	}
1535
1536	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1537	bResult = pHMHandle->pDeviceHandler->SetFileTime(&pHMHandle->hmHandleData,
1538	(LPFILETIME)pFT1,
1539	(LPFILETIME)pFT2,
1540	(LPFILETIME)pFT3);
1541
1542	return (bResult); /* deliver return code */
1543	}
1544
1545	/*****************************************************************************
1546	* Name : HMDeviceHandler::GetFileTime
1547	* Purpose : router function for SetFileTime
1548	* Parameters:
1549	* Variables :
1550	* Result :
1551	* Remark :
1552	* Status :
1553	*
1554	* Author : SvL
1555	*****************************************************************************/
1556
1557	BOOL HMGetFileTime (HANDLE hFile,
1558	const FILETIME *pFT1,
1559	const FILETIME *pFT2,
1560	const FILETIME *pFT3)
1561	{
1562	int iIndex; /* index into the handle table */
1563	BOOL bResult; /* result from the device handler's API */
1564	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1565
1566	/* validate handle */
1567	iIndex = _HMHandleQuery(hFile); /* get the index */
1568	if (-1 == iIndex) /* error ? */
1569	{
1570	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1571	return FALSE; /* signal failure */
1572	}
1573
1574	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1575	bResult = pHMHandle->pDeviceHandler->GetFileTime(&pHMHandle->hmHandleData,
1576	(LPFILETIME)pFT1,
1577	(LPFILETIME)pFT2,
1578	(LPFILETIME)pFT3);
1579
1580	return (bResult); /* deliver return code */
1581	}
1582
1583
1584	/*****************************************************************************
1585	* Name : HMDeviceHandler::GetFileSize
1586	* Purpose : router function for GetFileSize
1587	* Parameters:
1588	* Variables :
1589	* Result :
1590	* Remark :
1591	* Status :
1592	*
1593	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
1594	*****************************************************************************/
1595
1596	DWORD HMGetFileSize (HANDLE hFile,
1597	PDWORD pSize)
1598	{
1599	int iIndex; /* index into the handle table */
1600	DWORD dwResult; /* result from the device handler's API */
1601	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1602
1603	/* validate handle */
1604	iIndex = _HMHandleQuery(hFile); /* get the index */
1605	if (-1 == iIndex) /* error ? */
1606	{
1607	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1608	return (INVALID_HANDLE_ERROR); /* signal failure */
1609	}
1610
1611	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1612	dwResult = pHMHandle->pDeviceHandler->GetFileSize(&pHMHandle->hmHandleData,
1613	pSize);
1614
1615	return (dwResult); /* deliver return code */
1616	}
1617
1618
1619	/*****************************************************************************
1620	* Name : HMDeviceHandler::SetFilePointer
1621	* Purpose : router function for SetFilePointer
1622	* Parameters:
1623	* Variables :
1624	* Result :
1625	* Remark :
1626	* Status :
1627	*
1628	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
1629	*****************************************************************************/
1630
1631	DWORD HMSetFilePointer (HANDLE hFile,
1632	LONG lDistanceToMove,
1633	PLONG lpDistanceToMoveHigh,
1634	DWORD dwMoveMethod)
1635	{
1636	int iIndex; /* index into the handle table */
1637	DWORD dwResult; /* result from the device handler's API */
1638	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1639
1640	/* validate handle */
1641	iIndex = _HMHandleQuery(hFile); /* get the index */
1642	if (-1 == iIndex) /* error ? */
1643	{
1644	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1645	return (INVALID_HANDLE_ERROR); /* signal failure */
1646	}
1647
1648	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1649	dwResult = pHMHandle->pDeviceHandler->SetFilePointer(&pHMHandle->hmHandleData,
1650	lDistanceToMove,
1651	lpDistanceToMoveHigh,
1652	dwMoveMethod);
1653
1654	return (dwResult); /* deliver return code */
1655	}
1656
1657
1658	/*****************************************************************************
1659	* Name : HMDeviceHandler::LockFile
1660	* Purpose : router function for LockFile
1661	* Parameters:
1662	* Variables :
1663	* Result :
1664	* Remark :
1665	* Status :
1666	*
1667	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
1668	*****************************************************************************/
1669
1670	BOOL HMLockFile (HFILE hFile,
1671	DWORD arg2,
1672	DWORD arg3,
1673	DWORD arg4,
1674	DWORD arg5)
1675	{
1676	int iIndex; /* index into the handle table */
1677	DWORD dwResult; /* result from the device handler's API */
1678	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1679
1680	/* validate handle */
1681	iIndex = _HMHandleQuery(hFile); /* get the index */
1682	if (-1 == iIndex) /* error ? */
1683	{
1684	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1685	return FALSE; /* signal failure */
1686	}
1687
1688	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1689	dwResult = pHMHandle->pDeviceHandler->LockFile(&pHMHandle->hmHandleData,
1690	arg2,
1691	arg3,
1692	arg4,
1693	arg5);
1694
1695	return (dwResult); /* deliver return code */
1696	}
1697
1698
1699	/*****************************************************************************
1700	* Name : HMDeviceHandler::LockFileEx
1701	* Purpose : router function for LockFileEx
1702	* Parameters:
1703	* Variables :
1704	* Result :
1705	* Remark :
1706	* Status :
1707	*
1708	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
1709	*****************************************************************************/
1710
1711	BOOL HMLockFileEx(HANDLE hFile,
1712	DWORD dwFlags,
1713	DWORD dwReserved,
1714	DWORD nNumberOfBytesToLockLow,
1715	DWORD nNumberOfBytesToLockHigh,
1716	LPOVERLAPPED lpOverlapped)
1717	{
1718	int iIndex; /* index into the handle table */
1719	DWORD dwResult; /* result from the device handler's API */
1720	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1721
1722	/* validate handle */
1723	iIndex = _HMHandleQuery(hFile); /* get the index */
1724	if (-1 == iIndex) /* error ? */
1725	{
1726	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1727	return FALSE; /* signal failure */
1728	}
1729
1730	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1731	dwResult = pHMHandle->pDeviceHandler->LockFileEx(&pHMHandle->hmHandleData,
1732	dwFlags,
1733	dwReserved,
1734	nNumberOfBytesToLockLow,
1735	nNumberOfBytesToLockHigh,
1736	lpOverlapped);
1737
1738	return (dwResult); /* deliver return code */
1739	}
1740
1741
1742
1743	/*****************************************************************************
1744	* Name : HMDeviceHandler::UnlockFile
1745	* Purpose : router function for UnlockFile
1746	* Parameters:
1747	* Variables :
1748	* Result :
1749	* Remark :
1750	* Status :
1751	*
1752	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
1753	*****************************************************************************/
1754
1755	BOOL HMUnlockFile (HFILE hFile,
1756	DWORD arg2,
1757	DWORD arg3,
1758	DWORD arg4,
1759	DWORD arg5)
1760	{
1761	int iIndex; /* index into the handle table */
1762	DWORD dwResult; /* result from the device handler's API */
1763	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1764
1765	/* validate handle */
1766	iIndex = _HMHandleQuery(hFile); /* get the index */
1767	if (-1 == iIndex) /* error ? */
1768	{
1769	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1770	return FALSE; /* signal failure */
1771	}
1772
1773	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1774	dwResult = pHMHandle->pDeviceHandler->UnlockFile(&pHMHandle->hmHandleData,
1775	arg2,
1776	arg3,
1777	arg4,
1778	arg5);
1779
1780	return (dwResult); /* deliver return code */
1781	}
1782
1783
1784	/*****************************************************************************
1785	* Name : HMDeviceHandler::UnlockFileEx
1786	* Purpose : router function for UnlockFileEx
1787	* Parameters:
1788	* Variables :
1789	* Result :
1790	* Remark :
1791	* Status :
1792	*
1793	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
1794	*****************************************************************************/
1795
1796	BOOL HMUnlockFileEx(HANDLE hFile,
1797	DWORD dwReserved,
1798	DWORD nNumberOfBytesToLockLow,
1799	DWORD nNumberOfBytesToLockHigh,
1800	LPOVERLAPPED lpOverlapped)
1801	{
1802	int iIndex; /* index into the handle table */
1803	DWORD dwResult; /* result from the device handler's API */
1804	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1805
1806	/* validate handle */
1807	iIndex = _HMHandleQuery(hFile); /* get the index */
1808	if (-1 == iIndex) /* error ? */
1809	{
1810	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1811	return FALSE; /* signal failure */
1812	}
1813
1814	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1815	dwResult = pHMHandle->pDeviceHandler->UnlockFileEx(&pHMHandle->hmHandleData,
1816	dwReserved,
1817	nNumberOfBytesToLockLow,
1818	nNumberOfBytesToLockHigh,
1819	lpOverlapped);
1820
1821	return (dwResult); /* deliver return code */
1822	}
1823
1824
1825	/*****************************************************************************
1826	* Name : HMDeviceHandler::WaitForSingleObject
1827	* Purpose : router function for WaitForSingleObject
1828	* Parameters:
1829	* Variables :
1830	* Result :
1831	* Remark :
1832	* Status :
1833	*
1834	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
1835	*****************************************************************************/
1836
1837	DWORD HMWaitForSingleObject(HANDLE hObject,
1838	DWORD dwTimeout)
1839	{
1840	int iIndex; /* index into the handle table */
1841	DWORD dwResult; /* result from the device handler's API */
1842	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1843
1844	/* validate handle */
1845	iIndex = _HMHandleQuery(hObject); /* get the index */
1846	if (-1 == iIndex) /* error ? */
1847	{
1848	dprintf(("KERNEL32: HandleManager:HMWaitForSingleObject(%08xh) passed on to Open32.\n",
1849	hObject));
1850
1851	// maybe handles from CreateProcess() ...
1852	dwResult = O32_WaitForSingleObject(hObject, dwTimeout);
1853	return (dwResult);
1854	}
1855
1856	// @@@PH Problem: wrong class (base class) is called instead of
1857	// open32 class ?! Why ?!
1858	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1859	dwResult = pHMHandle->pDeviceHandler->WaitForSingleObject(&pHMHandle->hmHandleData,
1860	dwTimeout);
1861
1862	return (dwResult); /* deliver return code */
1863	}
1864
1865
1866	/*****************************************************************************
1867	* Name : HMDeviceHandler::WaitForSingleObjectEx
1868	* Purpose : router function for WaitForSingleObjectEx
1869	* Parameters:
1870	* Variables :
1871	* Result :
1872	* Remark :
1873	* Status :
1874	*
1875	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
1876	*****************************************************************************/
1877
1878	DWORD HMWaitForSingleObjectEx(HANDLE hObject,
1879	DWORD dwTimeout,
1880	BOOL fAlertable)
1881	{
1882	int iIndex; /* index into the handle table */
1883	DWORD dwResult; /* result from the device handler's API */
1884	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1885
1886	/* validate handle */
1887	iIndex = _HMHandleQuery(hObject); /* get the index */
1888	if (-1 == iIndex) /* error ? */
1889	{
1890	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1891	return WAIT_FAILED; /* signal failure */
1892	}
1893
1894	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1895	dwResult = pHMHandle->pDeviceHandler->WaitForSingleObjectEx(&pHMHandle->hmHandleData,
1896	dwTimeout,
1897	fAlertable);
1898
1899	return (dwResult); /* deliver return code */
1900	}
1901
1902
1903	/*****************************************************************************
1904	* Name : HMDeviceHandler::FlushFileBuffers
1905	* Purpose : router function for FlushFileBuffers
1906	* Parameters:
1907	* Variables :
1908	* Result :
1909	* Remark :
1910	* Status :
1911	*
1912	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
1913	*****************************************************************************/
1914
1915	BOOL HMFlushFileBuffers(HANDLE hFile)
1916	{
1917	int iIndex; /* index into the handle table */
1918	DWORD dwResult; /* result from the device handler's API */
1919	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1920
1921	/* validate handle */
1922	iIndex = _HMHandleQuery(hFile); /* get the index */
1923	if (-1 == iIndex) /* error ? */
1924	{
1925	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1926	return FALSE; /* signal failure */
1927	}
1928
1929	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1930	dwResult = pHMHandle->pDeviceHandler->FlushFileBuffers(&pHMHandle->hmHandleData);
1931
1932	return (dwResult); /* deliver return code */
1933	}
1934
1935
1936	/*****************************************************************************
1937	* Name : HMDeviceHandler::GetOverlappedResult
1938	* Purpose : router function for GetOverlappedResult
1939	* Parameters:
1940	* Variables :
1941	* Result :
1942	* Remark :
1943	* Status :
1944	*
1945	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
1946	*****************************************************************************/
1947
1948	BOOL HMGetOverlappedResult(HANDLE hObject,
1949	LPOVERLAPPED lpOverlapped,
1950	LPDWORD arg3,
1951	BOOL arg4)
1952	{
1953	int iIndex; /* index into the handle table */
1954	DWORD dwResult; /* result from the device handler's API */
1955	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1956
1957	/* validate handle */
1958	iIndex = _HMHandleQuery(hObject); /* get the index */
1959	if (-1 == iIndex) /* error ? */
1960	{
1961	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1962	return FALSE; /* signal failure */
1963	}
1964
1965	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1966	dwResult = pHMHandle->pDeviceHandler->GetOverlappedResult(&pHMHandle->hmHandleData,
1967	lpOverlapped,
1968	arg3,
1969	arg4);
1970
1971	return (dwResult); /* deliver return code */
1972	}
1973
1974
1975	/*****************************************************************************
1976	* Name : HMReleaseMutex
1977	* Purpose : router function for ReleaseMutex
1978	* Parameters:
1979	* Variables :
1980	* Result :
1981	* Remark :
1982	* Status :
1983	*
1984	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
1985	*****************************************************************************/
1986
1987	BOOL HMReleaseMutex(HANDLE hObject)
1988	{
1989	int iIndex; /* index into the handle table */
1990	DWORD dwResult; /* result from the device handler's API */
1991	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1992
1993	/* validate handle */
1994	iIndex = _HMHandleQuery(hObject); /* get the index */
1995	if (-1 == iIndex) /* error ? */
1996	{
1997	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1998	return FALSE; /* signal failure */
1999	}
2000
2001	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
2002	dwResult = pHMHandle->pDeviceHandler->ReleaseMutex(&pHMHandle->hmHandleData);
2003
2004	return (dwResult); /* deliver return code */
2005	}
2006
2007
2008	/*****************************************************************************
2009	* Name : HMSetEvent
2010	* Purpose : router function for SetEvent
2011	* Parameters:
2012	* Variables :
2013	* Result :
2014	* Remark :
2015	* Status :
2016	*
2017	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
2018	*****************************************************************************/
2019
2020	BOOL HMSetEvent(HANDLE hEvent)
2021	{
2022	int iIndex; /* index into the handle table */
2023	DWORD dwResult; /* result from the device handler's API */
2024	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
2025
2026	/* validate handle */
2027	iIndex = _HMHandleQuery(hEvent); /* get the index */
2028	if (-1 == iIndex) /* error ? */
2029	{
2030	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
2031	return FALSE; /* signal failure */
2032	}
2033
2034	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
2035	dwResult = pHMHandle->pDeviceHandler->SetEvent(&pHMHandle->hmHandleData);
2036
2037	return (dwResult); /* deliver return code */
2038	}
2039
2040
2041	/*****************************************************************************
2042	* Name : HMPulseEvent
2043	* Purpose : router function for PulseEvent
2044	* Parameters:
2045	* Variables :
2046	* Result :
2047	* Remark :
2048	* Status :
2049	*
2050	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
2051	*****************************************************************************/
2052
2053	BOOL HMPulseEvent(HANDLE hEvent)
2054	{
2055	int iIndex; /* index into the handle table */
2056	DWORD dwResult; /* result from the device handler's API */
2057	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
2058
2059	/* validate handle */
2060	iIndex = _HMHandleQuery(hEvent); /* get the index */
2061	if (-1 == iIndex) /* error ? */
2062	{
2063	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
2064	return FALSE; /* signal failure */
2065	}
2066
2067	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
2068	dwResult = pHMHandle->pDeviceHandler->PulseEvent(&pHMHandle->hmHandleData);
2069
2070	return (dwResult); /* deliver return code */
2071	}
2072
2073
2074	/*****************************************************************************
2075	* Name : HMResetEvent
2076	* Purpose : router function for ResetEvent
2077	* Parameters:
2078	* Variables :
2079	* Result :
2080	* Remark :
2081	* Status :
2082	*
2083	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
2084	*****************************************************************************/
2085
2086	BOOL HMResetEvent(HANDLE hEvent)
2087	{
2088	int iIndex; /* index into the handle table */
2089	DWORD dwResult; /* result from the device handler's API */
2090	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
2091
2092	/* validate handle */
2093	iIndex = _HMHandleQuery(hEvent); /* get the index */
2094	if (-1 == iIndex) /* error ? */
2095	{
2096	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
2097	return FALSE; /* signal failure */
2098	}
2099
2100	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
2101	dwResult = pHMHandle->pDeviceHandler->ResetEvent(&pHMHandle->hmHandleData);
2102
2103	return (dwResult); /* deliver return code */
2104	}
2105
2106
2107	/*****************************************************************************
2108	* Name : HANDLE HMCreateEvent
2109	* Purpose : Wrapper for the CreateEvent() API
2110	* Parameters:
2111	* Variables :
2112	* Result :
2113	* Remark :
2114	* Status :
2115	*
2116	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
2117	*****************************************************************************/
2118
2119	HANDLE HMCreateEvent(LPSECURITY_ATTRIBUTES lpsa,
2120	BOOL bManualReset,
2121	BOOL bInitialState,
2122	LPCTSTR lpName)
2123	{
2124	int iIndex; /* index into the handle table */
2125	int iIndexNew; /* index into the handle table */
2126	HMDeviceHandler pDeviceHandler; / device handler for this handle */
2127	PHMHANDLEDATA pHMHandleData;
2128	DWORD rc; /* API return code */
2129
2130
2131	pDeviceHandler = HMGlobals.pHMEvent; /* device is predefined */
2132
2133	iIndexNew = _HMHandleGetFree(); /* get free handle */
2134	if (-1 == iIndexNew) /* oops, no free handles ! */
2135	{
2136	SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
2137	return 0; /* signal error */
2138	}
2139
2140
2141	/* initialize the complete HMHANDLEDATA structure */
2142	pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
2143	pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
2144	pHMHandleData->dwAccess = 0;
2145	pHMHandleData->dwShare = 0;
2146	pHMHandleData->dwCreation = 0;
2147	pHMHandleData->dwFlags = 0;
2148	pHMHandleData->lpHandlerData = NULL;
2149
2150
2151	/* we've got to mark the handle as occupied here, since another device */
2152	/* could be created within the device handler -> deadlock */
2153
2154	/* write appropriate entry into the handle table if open succeeded */
2155	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
2156	TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
2157
2158	/* call the device handler */
2159	rc = pDeviceHandler->CreateEvent(&TabWin32Handles[iIndexNew].hmHandleData,
2160	lpsa,
2161	bManualReset,
2162	bInitialState,
2163	lpName);
2164	if (rc != NO_ERROR) /* oops, creation failed within the device handler */
2165	{
2166	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
2167	SetLastError(rc); /* Hehe, OS/2 and NT are pretty compatible :) */
2168	return 0; /* signal error */
2169	}
2170	else
2171	SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
2172
2173	return iIndexNew; /* return valid handle */
2174	}
2175
2176
2177	/*****************************************************************************
2178	* Name : HANDLE HMCreateMutex
2179	* Purpose : Wrapper for the CreateMutex() API
2180	* Parameters:
2181	* Variables :
2182	* Result :
2183	* Remark :
2184	* Status :
2185	*
2186	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
2187	*****************************************************************************/
2188
2189	HANDLE HMCreateMutex(LPSECURITY_ATTRIBUTES lpsa,
2190	BOOL bInitialOwner,
2191	LPCTSTR lpName)
2192	{
2193	int iIndex; /* index into the handle table */
2194	int iIndexNew; /* index into the handle table */
2195	HMDeviceHandler pDeviceHandler; / device handler for this handle */
2196	PHMHANDLEDATA pHMHandleData;
2197	DWORD rc; /* API return code */
2198
2199
2200	pDeviceHandler = HMGlobals.pHMMutex; /* device is predefined */
2201
2202	iIndexNew = _HMHandleGetFree(); /* get free handle */
2203	if (-1 == iIndexNew) /* oops, no free handles ! */
2204	{
2205	SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
2206	return 0; /* signal error */
2207	}
2208
2209
2210	/* initialize the complete HMHANDLEDATA structure */
2211	pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
2212	pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
2213	pHMHandleData->dwAccess = 0;
2214	pHMHandleData->dwShare = 0;
2215	pHMHandleData->dwCreation = 0;
2216	pHMHandleData->dwFlags = 0;
2217	pHMHandleData->lpHandlerData = NULL;
2218
2219
2220	/* we've got to mark the handle as occupied here, since another device */
2221	/* could be created within the device handler -> deadlock */
2222
2223	/* write appropriate entry into the handle table if open succeeded */
2224	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
2225	TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
2226
2227	/* call the device handler */
2228	rc = pDeviceHandler->CreateMutex(&TabWin32Handles[iIndexNew].hmHandleData,
2229	lpsa,
2230	bInitialOwner,
2231	lpName);
2232	if (rc != NO_ERROR) /* oops, creation failed within the device handler */
2233	{
2234	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
2235	SetLastError(rc); /* Hehe, OS/2 and NT are pretty compatible :) */
2236	return 0; /* signal error */
2237	}
2238	else
2239	SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
2240
2241	return iIndexNew; /* return valid handle */
2242	}
2243
2244
2245	/*****************************************************************************
2246	* Name : HANDLE HMOpenEvent
2247	* Purpose : Wrapper for the OpenEvent() API
2248	* Parameters:
2249	* Variables :
2250	* Result :
2251	* Remark :
2252	* Status :
2253	*
2254	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
2255	*****************************************************************************/
2256
2257	HANDLE HMOpenEvent(DWORD fdwAccess,
2258	BOOL fInherit,
2259	LPCTSTR lpName)
2260	{
2261	int iIndex; /* index into the handle table */
2262	int iIndexNew; /* index into the handle table */
2263	HMDeviceHandler pDeviceHandler; / device handler for this handle */
2264	PHMHANDLEDATA pHMHandleData;
2265	DWORD rc; /* API return code */
2266
2267
2268	pDeviceHandler = HMGlobals.pHMEvent; /* device is predefined */
2269
2270	iIndexNew = _HMHandleGetFree(); /* get free handle */
2271	if (-1 == iIndexNew) /* oops, no free handles ! */
2272	{
2273	SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
2274	return 0; /* signal error */
2275	}
2276
2277
2278	/* initialize the complete HMHANDLEDATA structure */
2279	pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
2280	pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
2281	pHMHandleData->dwAccess = fdwAccess;
2282	pHMHandleData->dwShare = 0;
2283	pHMHandleData->dwCreation = 0;
2284	pHMHandleData->dwFlags = 0;
2285	pHMHandleData->lpHandlerData = NULL;
2286
2287
2288	/* we've got to mark the handle as occupied here, since another device */
2289	/* could be created within the device handler -> deadlock */
2290
2291	/* write appropriate entry into the handle table if open succeeded */
2292	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
2293	TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
2294
2295	/* call the device handler */
2296	rc = pDeviceHandler->OpenEvent(&TabWin32Handles[iIndexNew].hmHandleData,
2297	fInherit,
2298	lpName);
2299	if (rc != NO_ERROR) /* oops, creation failed within the device handler */
2300	{
2301	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
2302	SetLastError(rc); /* Hehe, OS/2 and NT are pretty compatible :) */
2303	return 0; /* signal error */
2304	}
2305	else
2306	SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
2307
2308	return iIndexNew; /* return valid handle */
2309	}
2310
2311
2312	/*****************************************************************************
2313	* Name : HANDLE HMOpenMutex
2314	* Purpose : Wrapper for the OpenMutex() API
2315	* Parameters:
2316	* Variables :
2317	* Result :
2318	* Remark :
2319	* Status :
2320	*
2321	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
2322	*****************************************************************************/
2323
2324	HANDLE HMOpenMutex(DWORD fdwAccess,
2325	BOOL fInherit,
2326	LPCTSTR lpName)
2327	{
2328	int iIndex; /* index into the handle table */
2329	int iIndexNew; /* index into the handle table */
2330	HMDeviceHandler pDeviceHandler; / device handler for this handle */
2331	PHMHANDLEDATA pHMHandleData;
2332	DWORD rc; /* API return code */
2333
2334
2335	pDeviceHandler = HMGlobals.pHMMutex; /* device is predefined */
2336
2337	iIndexNew = _HMHandleGetFree(); /* get free handle */
2338	if (-1 == iIndexNew) /* oops, no free handles ! */
2339	{
2340	SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
2341	return 0; /* signal error */
2342	}
2343
2344
2345	/* initialize the complete HMHANDLEDATA structure */
2346	pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
2347	pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
2348	pHMHandleData->dwAccess = fdwAccess;
2349	pHMHandleData->dwShare = 0;
2350	pHMHandleData->dwCreation = 0;
2351	pHMHandleData->dwFlags = 0;
2352	pHMHandleData->lpHandlerData = NULL;
2353
2354
2355	/* we've got to mark the handle as occupied here, since another device */
2356	/* could be created within the device handler -> deadlock */
2357
2358	/* write appropriate entry into the handle table if open succeeded */
2359	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
2360	TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
2361
2362	/* call the device handler */
2363	rc = pDeviceHandler->OpenMutex(&TabWin32Handles[iIndexNew].hmHandleData,
2364	fInherit,
2365	lpName);
2366	if (rc != NO_ERROR) /* oops, creation failed within the device handler */
2367	{
2368	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
2369	SetLastError(rc); /* Hehe, OS/2 and NT are pretty compatible :) */
2370	return 0; /* signal error */
2371	}
2372	else
2373	SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
2374
2375	return iIndexNew; /* return valid handle */
2376	}
2377
2378
2379	/*****************************************************************************
2380	* Name : HANDLE HMCreateSemaphore
2381	* Purpose : Wrapper for the CreateSemaphore() API
2382	* Parameters:
2383	* Variables :
2384	* Result :
2385	* Remark :
2386	* Status :
2387	*
2388	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
2389	*****************************************************************************/
2390
2391	HANDLE HMCreateSemaphore(LPSECURITY_ATTRIBUTES lpsa,
2392	LONG lInitialCount,
2393	LONG lMaximumCount,
2394	LPCTSTR lpName)
2395	{
2396	int iIndex; /* index into the handle table */
2397	int iIndexNew; /* index into the handle table */
2398	HMDeviceHandler pDeviceHandler; / device handler for this handle */
2399	PHMHANDLEDATA pHMHandleData;
2400	DWORD rc; /* API return code */
2401
2402
2403	pDeviceHandler = HMGlobals.pHMSemaphore; /* device is predefined */
2404
2405	iIndexNew = _HMHandleGetFree(); /* get free handle */
2406	if (-1 == iIndexNew) /* oops, no free handles ! */
2407	{
2408	SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
2409	return 0; /* signal error */
2410	}
2411
2412
2413	/* initialize the complete HMHANDLEDATA structure */
2414	pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
2415	pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
2416	pHMHandleData->dwAccess = 0;
2417	pHMHandleData->dwShare = 0;
2418	pHMHandleData->dwCreation = 0;
2419	pHMHandleData->dwFlags = 0;
2420	pHMHandleData->lpHandlerData = NULL;
2421
2422
2423	/* we've got to mark the handle as occupied here, since another device */
2424	/* could be created within the device handler -> deadlock */
2425
2426	/* write appropriate entry into the handle table if open succeeded */
2427	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
2428	TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
2429
2430	/* call the device handler */
2431	rc = pDeviceHandler->CreateSemaphore(&TabWin32Handles[iIndexNew].hmHandleData,
2432	lpsa,
2433	lInitialCount,
2434	lMaximumCount,
2435	lpName);
2436	if (rc != NO_ERROR) /* oops, creation failed within the device handler */
2437	{
2438	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
2439	SetLastError(rc); /* Hehe, OS/2 and NT are pretty compatible :) */
2440	return 0; /* signal failure */
2441	}
2442	else
2443	SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
2444
2445	return iIndexNew; /* return valid handle */
2446	}
2447
2448
2449	/*****************************************************************************
2450	* Name : HANDLE HMOpenSemaphore
2451	* Purpose : Wrapper for the OpenSemaphore() API
2452	* Parameters:
2453	* Variables :
2454	* Result :
2455	* Remark :
2456	* Status :
2457	*
2458	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
2459	*****************************************************************************/
2460
2461	HANDLE HMOpenSemaphore(DWORD fdwAccess,
2462	BOOL fInherit,
2463	LPCTSTR lpName)
2464	{
2465	int iIndex; /* index into the handle table */
2466	int iIndexNew; /* index into the handle table */
2467	HMDeviceHandler pDeviceHandler; / device handler for this handle */
2468	PHMHANDLEDATA pHMHandleData;
2469	DWORD rc; /* API return code */
2470
2471
2472	pDeviceHandler = HMGlobals.pHMSemaphore; /* device is predefined */
2473
2474	iIndexNew = _HMHandleGetFree(); /* get free handle */
2475	if (-1 == iIndexNew) /* oops, no free handles ! */
2476	{
2477	SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
2478	return 0; /* signal error */
2479	}
2480
2481
2482	/* initialize the complete HMHANDLEDATA structure */
2483	pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
2484	pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
2485	pHMHandleData->dwAccess = fdwAccess;
2486	pHMHandleData->dwShare = 0;
2487	pHMHandleData->dwCreation = 0;
2488	pHMHandleData->dwFlags = 0;
2489	pHMHandleData->lpHandlerData = NULL;
2490
2491
2492	/* we've got to mark the handle as occupied here, since another device */
2493	/* could be created within the device handler -> deadlock */
2494
2495	/* write appropriate entry into the handle table if open succeeded */
2496	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
2497	TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
2498
2499	/* call the device handler */
2500	rc = pDeviceHandler->OpenSemaphore(&TabWin32Handles[iIndexNew].hmHandleData,
2501	fInherit,
2502	lpName);
2503	if (rc != NO_ERROR) /* oops, creation failed within the device handler */
2504	{
2505	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
2506	SetLastError(rc); /* Hehe, OS/2 and NT are pretty compatible :) */
2507	return 0; /* signal failure */
2508	}
2509	else
2510	SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
2511
2512	return iIndexNew; /* return valid handle */
2513	}
2514
2515
2516	/*****************************************************************************
2517	* Name : HMReleaseSemaphore
2518	* Purpose : router function for ReleaseSemaphore
2519	* Parameters:
2520	* Variables :
2521	* Result :
2522	* Remark :
2523	* Status :
2524	*
2525	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
2526	*****************************************************************************/
2527
2528	BOOL HMReleaseSemaphore(HANDLE hEvent,
2529	LONG cReleaseCount,
2530	LPLONG lpPreviousCount)
2531	{
2532	int iIndex; /* index into the handle table */
2533	DWORD dwResult; /* result from the device handler's API */
2534	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
2535
2536	/* validate handle */
2537	iIndex = _HMHandleQuery(hEvent); /* get the index */
2538	if (-1 == iIndex) /* error ? */
2539	{
2540	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
2541	return 0; /* signal failure */
2542	}
2543	else
2544	SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
2545
2546	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
2547	dwResult = pHMHandle->pDeviceHandler->ReleaseSemaphore(&pHMHandle->hmHandleData,
2548	cReleaseCount,
2549	lpPreviousCount);
2550
2551	return (dwResult); /* deliver return code */
2552	}
2553
2554
2555	/*****************************************************************************
2556	* Name : HANDLE HMCreateFileMapping
2557	* Purpose : Wrapper for the CreateFileMapping() API
2558	* Parameters:
2559	* Variables :
2560	* Result :
2561	* Remark :
2562	* Status :
2563	*
2564	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
2565	*****************************************************************************/
2566
2567	HANDLE HMCreateFileMapping(HANDLE hFile,
2568	LPSECURITY_ATTRIBUTES lpFileMappingAttributes,
2569	DWORD flProtect,
2570	DWORD dwMaximumSizeHigh,
2571	DWORD dwMaximumSizeLow,
2572	LPCTSTR lpName)
2573	{
2574	int iIndex; /* index into the handle table */
2575	int iIndexNew; /* index into the handle table */
2576	HMDeviceHandler pDeviceHandler; / device handler for this handle */
2577	PHMHANDLEDATA pHMHandleData;
2578	DWORD rc; /* API return code */
2579	HANDLE hOldMemMap = -1;
2580
2581	pDeviceHandler = HMGlobals.pHMFileMapping; /* device is predefined */
2582
2583	iIndexNew = _HMHandleGetFree(); /* get free handle */
2584	if (-1 == iIndexNew) /* oops, no free handles ! */
2585	{
2586	SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
2587	return 0; /* signal error */
2588	}
2589
2590
2591	/* initialize the complete HMHANDLEDATA structure */
2592	pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
2593	pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
2594	pHMHandleData->dwAccess = 0;
2595	pHMHandleData->dwShare = 0;
2596	pHMHandleData->dwCreation = 0;
2597	pHMHandleData->dwFlags = 0;
2598	pHMHandleData->lpHandlerData = NULL;
2599
2600
2601	/* we've got to mark the handle as occupied here, since another device */
2602	/* could be created within the device handler -> deadlock */
2603
2604	/* write appropriate entry into the handle table if open succeeded */
2605	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
2606	TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
2607
2608	/* call the device handler */
2609
2610	// @@@PH: Note: hFile is a Win32-style handle, it's not (yet) converted to
2611	// a valid HandleManager-internal handle!
2612	rc = pDeviceHandler->CreateFileMapping(&TabWin32Handles[iIndexNew].hmHandleData,
2613	hFile,
2614	lpFileMappingAttributes,
2615	flProtect,
2616	dwMaximumSizeHigh,
2617	dwMaximumSizeLow,
2618	lpName, &hOldMemMap);
2619
2620	if (rc != NO_ERROR) /* oops, creation failed within the device handler */
2621	{
2622	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
2623	SetLastError(rc); /* Hehe, OS/2 and NT are pretty compatible :) */
2624	if(rc == ERROR_ALREADY_EXISTS) {
2625	return hOldMemMap; //return handle of existing file mapping
2626	}
2627	else return (NULL); /* signal error */
2628	}
2629	else
2630	SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
2631
2632	return iIndexNew; /* return valid handle */
2633	}
2634
2635
2636	/*****************************************************************************
2637	* Name : HANDLE HMOpenFileMapping
2638	* Purpose : Wrapper for the OpenFileMapping() API
2639	* Parameters:
2640	* Variables :
2641	* Result : HANDLE if succeeded,
2642	* NULL if failed.
2643	* Remark :
2644	* Status :
2645	*
2646	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
2647	*****************************************************************************/
2648
2649	HANDLE HMOpenFileMapping(DWORD fdwAccess,
2650	BOOL fInherit,
2651	LPCTSTR lpName)
2652	{
2653	int iIndex; /* index into the handle table */
2654	int iIndexNew; /* index into the handle table */
2655	HMDeviceHandler pDeviceHandler; / device handler for this handle */
2656	PHMHANDLEDATA pHMHandleData;
2657	DWORD rc; /* API return code */
2658
2659
2660	pDeviceHandler = HMGlobals.pHMFileMapping; /* device is predefined */
2661
2662	iIndexNew = _HMHandleGetFree(); /* get free handle */
2663	if (-1 == iIndexNew) /* oops, no free handles ! */
2664	{
2665	SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
2666	return (NULL); /* signal error */
2667	}
2668
2669	/* initialize the complete HMHANDLEDATA structure */
2670	pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
2671	pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
2672	pHMHandleData->dwAccess = fdwAccess;
2673	pHMHandleData->dwShare = 0;
2674	pHMHandleData->dwCreation = 0;
2675	pHMHandleData->dwFlags = 0;
2676	pHMHandleData->lpHandlerData = NULL;
2677
2678
2679	/* we've got to mark the handle as occupied here, since another device */
2680	/* could be created within the device handler -> deadlock */
2681
2682	/* write appropriate entry into the handle table if open succeeded */
2683	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
2684	TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
2685
2686	/* call the device handler */
2687	rc = pDeviceHandler->OpenFileMapping(&TabWin32Handles[iIndexNew].hmHandleData,
2688	fdwAccess,
2689	fInherit,
2690	lpName);
2691	if (rc != NO_ERROR) /* oops, creation failed within the device handler */
2692	{
2693	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
2694	SetLastError(rc); /* Hehe, OS/2 and NT are pretty compatible :) */
2695	return (NULL); /* signal error */
2696	}
2697	else
2698	SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
2699
2700	return iIndexNew; /* return valid handle */
2701	}
2702
2703
2704	/*****************************************************************************
2705	* Name : HMMapViewOfFileEx
2706	* Purpose : router function for MapViewOfFileEx
2707	* Parameters:
2708	* Variables :
2709	* Result :
2710	* Remark :
2711	* Status :
2712	*
2713	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
2714	*****************************************************************************/
2715
2716	LPVOID HMMapViewOfFileEx(HANDLE hFileMappingObject,
2717	DWORD dwDesiredAccess,
2718	DWORD dwFileOffsetHigh,
2719	DWORD dwFileOffsetLow,
2720	DWORD dwNumberOfBytesToMap,
2721	LPVOID lpBaseAddress)
2722	{
2723	int iIndex; /* index into the handle table */
2724	LPVOID lpResult; /* result from the device handler's API */
2725	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
2726
2727	/* validate handle */
2728	iIndex = _HMHandleQuery(hFileMappingObject); /* get the index */
2729	if (-1 == iIndex) /* error ? */
2730	{
2731	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
2732	return (NULL); /* signal failure */
2733	}
2734
2735	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
2736	lpResult = pHMHandle->pDeviceHandler->MapViewOfFileEx(&pHMHandle->hmHandleData,
2737	dwDesiredAccess,
2738	dwFileOffsetHigh,
2739	dwFileOffsetLow,
2740	dwNumberOfBytesToMap,
2741	lpBaseAddress);
2742
2743	return (lpResult); /* deliver return code */
2744	}
2745
2746	/*****************************************************************************
2747	* Name : HMWaitForMultipleObjects
2748	* Purpose : router function for WaitForMultipleObjects
2749	* Parameters:
2750	* Variables :
2751	* Result :
2752	* Remark :
2753	* Status :
2754	*
2755	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
2756	*****************************************************************************/
2757
2758	DWORD HMWaitForMultipleObjects (DWORD cObjects,
2759	PHANDLE lphObjects,
2760	BOOL fWaitAll,
2761	DWORD dwTimeout)
2762	{
2763	ULONG ulIndex;
2764	PHANDLE pArrayOfHandles;
2765	PHANDLE pLoop1 = lphObjects;
2766	PHANDLE pLoop2;
2767	DWORD rc;
2768
2769	// allocate array for handle table
2770	pArrayOfHandles = (PHANDLE)alloca(cObjects * sizeof(HANDLE));
2771	if (pArrayOfHandles == NULL)
2772	{
2773	dprintf(("ERROR: HMWaitForMultipleObjects: alloca failed to allocate %d handles", cObjects));
2774	O32_SetLastError(ERROR_NOT_ENOUGH_MEMORY);
2775	return WAIT_FAILED;
2776	}
2777	else
2778	pLoop2 = pArrayOfHandles;
2779
2780	// convert array to odin handles
2781	for (ulIndex = 0;
2782
2783	ulIndex < cObjects;
2784
2785	ulIndex++,
2786	pLoop1++,
2787	pLoop2++)
2788	{
2789	rc = HMHandleTranslateToOS2 (*pLoop1, // translate handle
2790	pLoop2);
2791
2792	dprintf(("KERNEL32: HMWaitForMultipleObjects: handle %3i: ODIN-%08xh, Open32-%08xh\n",
2793	ulIndex,
2794	*pLoop1,
2795	*pLoop2));
2796
2797	// @@@PH to imlpement: check handle type!
2798	// SvL: We still use Open32 handles for threads & processes -> don't fail here!
2799	if (rc != NO_ERROR)
2800	{
2801	dprintf(("KERNEL32: HMWaitForMultipleObjects - WARNING: handle %08xh is NOT an Odin handle (probably Open32 thread or process)\n",
2802	*pLoop1));
2803
2804	pLoop2 = pLoop1;
2805	//// O32_SetLastError(ERROR_INVALID_HANDLE);
2806	//// return (WAIT_FAILED);
2807	}
2808	}
2809
2810	// OK, now forward to Open32.
2811	// @@@PH: Note this will fail on handles that do NOT belong to Open32
2812	// but to i.e. the console subsystem!
2813	rc = O32_WaitForMultipleObjects(cObjects,
2814	pArrayOfHandles,
2815	fWaitAll,
2816	dwTimeout);
2817
2818	return (rc); // OK, done
2819	}
2820
2821
2822	/*****************************************************************************
2823	* Name : HMWaitForMultipleObjectsEx
2824	* Purpose : router function for WaitForMultipleObjectsEx
2825	* Parameters:
2826	* Variables :
2827	* Result :
2828	* Remark :
2829	* Status :
2830	*
2831	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
2832	*****************************************************************************/
2833
2834	DWORD HMWaitForMultipleObjectsEx (DWORD cObjects,
2835	PHANDLE lphObjects,
2836	BOOL fWaitAll,
2837	DWORD dwTimeout,
2838	BOOL fAlertable)
2839	{
2840	// @@@PH: Note: fAlertable is ignored !
2841	return (HMWaitForMultipleObjects(cObjects,
2842	lphObjects,
2843	fWaitAll,
2844	dwTimeout));
2845	}
2846
2847	/*****************************************************************************
2848	* Name : HMMsgWaitForMultipleObjects
2849	* Purpose : router function for MsgWaitForMultipleObjects
2850	* Parameters:
2851	* Variables :
2852	* Result :
2853	* Remark : Open32 doesn't implement this properly! (doesn't check dwWakeMask)
2854	* Status :
2855	*
2856	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
2857	*****************************************************************************/
2858
2859	DWORD HMMsgWaitForMultipleObjects (DWORD nCount,
2860	LPHANDLE pHandles,
2861	BOOL fWaitAll,
2862	DWORD dwMilliseconds,
2863	DWORD dwWakeMask)
2864	{
2865	ULONG ulIndex;
2866	PHANDLE pArrayOfHandles;
2867	PHANDLE pLoop1 = pHandles;
2868	PHANDLE pLoop2;
2869	DWORD rc;
2870
2871	// allocate array for handle table
2872	pArrayOfHandles = (PHANDLE)alloca(nCount * sizeof(HANDLE));
2873	if (pArrayOfHandles == NULL)
2874	{
2875	dprintf(("ERROR: HMMsgWaitForMultipleObjects: alloca failed to allocate %d handles", nCount));
2876	O32_SetLastError(ERROR_NOT_ENOUGH_MEMORY);
2877	return WAIT_FAILED;
2878	}
2879	else
2880	pLoop2 = pArrayOfHandles;
2881
2882	// convert array to odin handles
2883	for (ulIndex = 0;
2884
2885	ulIndex < nCount;
2886
2887	ulIndex++,
2888	pLoop1++,
2889	pLoop2++)
2890	{
2891	rc = HMHandleTranslateToOS2 (*pLoop1, // translate handle
2892	pLoop2);
2893
2894	// SvL: We still use Open32 handles for threads & processes -> don't fail here!
2895	if (rc != NO_ERROR)
2896	{
2897	dprintf(("KERNEL32: HMMsgWaitForMultipleObjects - WARNING: handle %08xh is NOT an Odin handle (probably Open32 thread or process)\n",
2898	*pLoop1));
2899
2900	pLoop2 = pLoop1;
2901	//// O32_SetLastError(ERROR_INVALID_HANDLE);
2902	//// return (WAIT_FAILED);
2903	}
2904	}
2905
2906	// OK, now forward to Open32.
2907	// @@@PH: Note this will fail on handles that do NOT belong to Open32
2908	// but to i.e. the console subsystem!
2909	rc = O32_MsgWaitForMultipleObjects(nCount,
2910	pArrayOfHandles,
2911	fWaitAll, dwMilliseconds,
2912	dwWakeMask);
2913
2914	return (rc); // OK, done
2915	}
2916	/*****************************************************************************
2917	* Name : HMDeviceIoControl
2918	* Purpose : router function for DeviceIoControl
2919	* Parameters:
2920	* Variables :
2921	* Result :
2922	* Remark :
2923	* Status :
2924	*
2925	* Author : Sander van Leeuwen
2926	*****************************************************************************/
2927
2928	BOOL HMDeviceIoControl(HANDLE hDevice, DWORD dwIoControlCode,
2929	LPVOID lpInBuffer, DWORD nInBufferSize,
2930	LPVOID lpOutBuffer, DWORD nOutBufferSize,
2931	LPDWORD lpBytesReturned, LPOVERLAPPED lpOverlapped)
2932	{
2933	int iIndex; /* index into the handle table */
2934	BOOL fResult; /* result from the device handler's CloseHandle() */
2935	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
2936
2937	/* validate handle */
2938	iIndex = _HMHandleQuery(hDevice); /* get the index */
2939	if (-1 == iIndex) /* error ? */
2940	{
2941	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
2942	return (FALSE); /* signal failure */
2943	}
2944
2945	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
2946	fResult = pHMHandle->pDeviceHandler->DeviceIoControl(&pHMHandle->hmHandleData,
2947	dwIoControlCode,
2948	lpInBuffer, nInBufferSize,
2949	lpOutBuffer, nOutBufferSize,
2950	lpBytesReturned, lpOverlapped);
2951
2952	return (fResult); /* deliver return code */
2953	}
2954
2955
2956
2957	/*****************************************************************************
2958	* Name : HMCOMGetCommState
2959	* Purpose : router function for GetCommState
2960	* Parameters:
2961	* Variables :
2962	* Result :
2963	* Remark :
2964	* Status :
2965	*
2966	* Author : Achim Hasenmueller [Sat, 1999/11/27 13:40]
2967	*****************************************************************************/
2968
2969	BOOL HMCommGetCommState(HANDLE hCommDev, LPDCB lpdcb)
2970	{
2971	int iIndex; /* index into the handle table */
2972	BOOL bResult; /* result from the device handler's API */
2973	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
2974
2975	/* validate handle */
2976	iIndex = _HMHandleQuery(hCommDev); /* get the index */
2977	if (-1 == iIndex) /* error ? */
2978	{
2979	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
2980	return (NULL); /* signal failure */
2981	}
2982
2983	if(IsBadWritePtr(lpdcb,sizeof(DCB)))
2984	{
2985	SetLastError(ERROR_INVALID_PARAMETER);
2986	return FALSE;
2987	}
2988
2989	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
2990	bResult = pHMHandle->pDeviceHandler->GetCommState(&pHMHandle->hmHandleData,
2991	lpdcb);
2992
2993	return (bResult); /* deliver return code */
2994	}
2995
2996	BOOL HMCommWaitCommEvent( HANDLE hCommDev,
2997	LPDWORD lpfdwEvtMask,
2998	LPOVERLAPPED lpo)
2999	{
3000	int iIndex; /* index into the handle table */
3001	BOOL bResult; /* result from the device handler's API */
3002	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3003
3004	/* validate handle */
3005	iIndex = _HMHandleQuery(hCommDev); /* get the index */
3006	if (-1 == iIndex) /* error ? */
3007	{
3008	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3009	return FALSE; /* signal failure */
3010	}
3011
3012	if(NULL!=lpo && IsBadReadPtr(lpo,sizeof(OVERLAPPED)) )
3013	{
3014	SetLastError(ERROR_INVALID_PARAMETER);
3015	return FALSE;
3016	}
3017
3018	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3019	bResult = pHMHandle->pDeviceHandler->WaitCommEvent( &pHMHandle->hmHandleData,
3020	lpfdwEvtMask,
3021	lpo);
3022
3023	return (bResult); /* deliver return code */
3024	}
3025
3026	BOOL HMCommGetCommProperties( HANDLE hCommDev,
3027	LPCOMMPROP lpcmmp)
3028	{
3029	int iIndex; /* index into the handle table */
3030	BOOL bResult; /* result from the device handler's API */
3031	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3032
3033	/* validate handle */
3034	iIndex = _HMHandleQuery(hCommDev); /* get the index */
3035	if (-1 == iIndex) /* error ? */
3036	{
3037	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3038	return (NULL); /* signal failure */
3039	}
3040
3041	if(IsBadWritePtr(lpcmmp,sizeof(COMMPROP)) )
3042	{
3043	SetLastError(ERROR_INVALID_PARAMETER);
3044	return FALSE;
3045	}
3046
3047	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3048	bResult = pHMHandle->pDeviceHandler->GetCommProperties( &pHMHandle->hmHandleData,
3049	lpcmmp);
3050
3051	return (bResult); /* deliver return code */
3052	}
3053
3054	BOOL HMCommGetCommMask( HANDLE hCommDev,
3055	LPDWORD lpfdwEvtMask)
3056	{
3057	int iIndex; /* index into the handle table */
3058	BOOL bResult; /* result from the device handler's API */
3059	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3060
3061	/* validate handle */
3062	iIndex = _HMHandleQuery(hCommDev); /* get the index */
3063	if (-1 == iIndex) /* error ? */
3064	{
3065	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3066	return (NULL); /* signal failure */
3067	}
3068
3069	if(IsBadWritePtr(lpfdwEvtMask,sizeof(DWORD)) )
3070	{
3071	SetLastError(ERROR_INVALID_PARAMETER);
3072	return FALSE;
3073	}
3074
3075	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3076	bResult = pHMHandle->pDeviceHandler->GetCommMask( &pHMHandle->hmHandleData,
3077	lpfdwEvtMask);
3078
3079	return (bResult); /* deliver return code */
3080	}
3081
3082	BOOL HMCommSetCommMask( HANDLE hCommDev,
3083	DWORD fdwEvtMask)
3084	{
3085	int iIndex; /* index into the handle table */
3086	BOOL bResult; /* result from the device handler's API */
3087	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3088
3089	/* validate handle */
3090	iIndex = _HMHandleQuery(hCommDev); /* get the index */
3091	if (-1 == iIndex) /* error ? */
3092	{
3093	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3094	return (NULL); /* signal failure */
3095	}
3096
3097	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3098	bResult = pHMHandle->pDeviceHandler->SetCommMask( &pHMHandle->hmHandleData,
3099	fdwEvtMask);
3100
3101	return (bResult); /* deliver return code */
3102	}
3103
3104	BOOL HMCommPurgeComm( HANDLE hCommDev,
3105	DWORD fdwAction)
3106	{
3107	int iIndex; /* index into the handle table */
3108	BOOL bResult; /* result from the device handler's API */
3109	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3110
3111	/* validate handle */
3112	iIndex = _HMHandleQuery(hCommDev); /* get the index */
3113	if (-1 == iIndex) /* error ? */
3114	{
3115	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3116	return (NULL); /* signal failure */
3117	}
3118
3119
3120	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3121	bResult = pHMHandle->pDeviceHandler->PurgeComm( &pHMHandle->hmHandleData,
3122	fdwAction);
3123
3124	return (bResult); /* deliver return code */
3125	}
3126
3127	BOOL HMCommClearCommError( HANDLE hCommDev,
3128	LPDWORD lpdwErrors,
3129	LPCOMSTAT lpcst)
3130	{
3131	int iIndex; /* index into the handle table */
3132	BOOL bResult; /* result from the device handler's API */
3133	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3134
3135	/* validate handle */
3136	iIndex = _HMHandleQuery(hCommDev); /* get the index */
3137	if (-1 == iIndex) /* error ? */
3138	{
3139	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3140	return (NULL); /* signal failure */
3141	}
3142
3143	if(IsBadWritePtr(lpdwErrors,sizeof(DWORD)) \|\|
3144	(NULL!=lpcst && IsBadWritePtr(lpcst,sizeof(COMSTAT)) ) )
3145	{
3146	SetLastError(ERROR_INVALID_PARAMETER);
3147	return FALSE;
3148	}
3149
3150	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3151	bResult = pHMHandle->pDeviceHandler->ClearCommError(&pHMHandle->hmHandleData,
3152	lpdwErrors,
3153	lpcst);
3154
3155	return (bResult); /* deliver return code */
3156	}
3157
3158	BOOL HMCommSetCommState( HANDLE hCommDev,
3159	LPDCB lpdcb)
3160	{
3161	int iIndex; /* index into the handle table */
3162	BOOL bResult; /* result from the device handler's API */
3163	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3164
3165	/* validate handle */
3166	iIndex = _HMHandleQuery(hCommDev); /* get the index */
3167	if (-1 == iIndex) /* error ? */
3168	{
3169	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3170	return (NULL); /* signal failure */
3171	}
3172
3173	if(IsBadReadPtr(lpdcb,sizeof(DCB)) )
3174	{
3175	SetLastError(ERROR_INVALID_PARAMETER);
3176	return FALSE;
3177	}
3178
3179
3180	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3181	bResult = pHMHandle->pDeviceHandler->SetCommState(&pHMHandle->hmHandleData,
3182	lpdcb);
3183
3184	return (bResult); /* deliver return code */
3185	}
3186
3187
3188	BOOL HMCommGetCommTimeouts( HANDLE hCommDev,
3189	LPCOMMTIMEOUTS lpctmo)
3190	{
3191	int iIndex; /* index into the handle table */
3192	BOOL bResult; /* result from the device handler's API */
3193	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3194
3195	/* validate handle */
3196	iIndex = _HMHandleQuery(hCommDev); /* get the index */
3197	if (-1 == iIndex) /* error ? */
3198	{
3199	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3200	return (NULL); /* signal failure */
3201	}
3202
3203	if(IsBadWritePtr(lpctmo,sizeof(COMMTIMEOUTS)) )
3204	{
3205	SetLastError(ERROR_INVALID_PARAMETER);
3206	return FALSE;
3207	}
3208
3209	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3210	bResult = pHMHandle->pDeviceHandler->GetCommTimeouts( &pHMHandle->hmHandleData,
3211	lpctmo);
3212
3213	return (bResult); /* deliver return code */
3214	}
3215	BOOL HMCommGetCommModemStatus( HANDLE hCommDev,
3216	LPDWORD lpModemStat )
3217	{
3218	int iIndex; /* index into the handle table */
3219	BOOL bResult; /* result from the device handler's API */
3220	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3221
3222	/* validate handle */
3223	iIndex = _HMHandleQuery(hCommDev); /* get the index */
3224	if (-1 == iIndex) /* error ? */
3225	{
3226	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3227	return (NULL); /* signal failure */
3228	}
3229
3230	if(IsBadWritePtr(lpModemStat,sizeof(DWORD)) )
3231	{
3232	SetLastError(ERROR_INVALID_PARAMETER);
3233	return FALSE;
3234	}
3235
3236	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3237	bResult = pHMHandle->pDeviceHandler->GetCommModemStatus( &pHMHandle->hmHandleData,
3238	lpModemStat);
3239
3240	return (bResult); /* deliver return code */
3241	}
3242
3243	BOOL HMCommSetCommTimeouts( HANDLE hCommDev,
3244	LPCOMMTIMEOUTS lpctmo)
3245	{
3246	int iIndex; /* index into the handle table */
3247	BOOL bResult; /* result from the device handler's API */
3248	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3249
3250	/* validate handle */
3251	iIndex = _HMHandleQuery(hCommDev); /* get the index */
3252	if (-1 == iIndex) /* error ? */
3253	{
3254	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3255	return (NULL); /* signal failure */
3256	}
3257
3258	if(IsBadReadPtr(lpctmo,sizeof(COMMTIMEOUTS)) )
3259	{
3260	SetLastError(ERROR_INVALID_PARAMETER);
3261	return FALSE;
3262	}
3263
3264	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3265	bResult = pHMHandle->pDeviceHandler->SetCommTimeouts( &pHMHandle->hmHandleData,
3266	lpctmo);
3267
3268	return (bResult); /* deliver return code */
3269	}
3270
3271	BOOL HMCommTransmitCommChar( HANDLE hCommDev,
3272	CHAR cChar )
3273	{
3274	int iIndex; /* index into the handle table */
3275	BOOL bResult; /* result from the device handler's API */
3276	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3277
3278	/* validate handle */
3279	iIndex = _HMHandleQuery(hCommDev); /* get the index */
3280	if (-1 == iIndex) /* error ? */
3281	{
3282	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3283	return (NULL); /* signal failure */
3284	}
3285
3286	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3287	bResult = pHMHandle->pDeviceHandler->TransmitCommChar( &pHMHandle->hmHandleData,
3288	cChar);
3289
3290	return (bResult); /* deliver return code */
3291	}
3292
3293	BOOL HMCommSetCommConfig( HANDLE hCommDev,
3294	LPCOMMCONFIG lpCC,
3295	DWORD dwSize )
3296	{
3297	int iIndex; /* index into the handle table */
3298	BOOL bResult; /* result from the device handler's API */
3299	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3300
3301	/* validate handle */
3302	iIndex = _HMHandleQuery(hCommDev); /* get the index */
3303	if (-1 == iIndex) /* error ? */
3304	{
3305	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3306	return (NULL); /* signal failure */
3307	}
3308
3309	if( IsBadReadPtr(lpCC,sizeof(COMMCONFIG)) \|\|
3310	dwSize < sizeof(COMMCONFIG) )
3311	{
3312	SetLastError(ERROR_INVALID_PARAMETER);
3313	return FALSE;
3314	}
3315
3316	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3317	bResult = pHMHandle->pDeviceHandler->SetCommConfig( &pHMHandle->hmHandleData,
3318	lpCC,
3319	dwSize);
3320
3321	return (bResult); /* deliver return code */
3322	}
3323
3324	BOOL HMCommSetCommBreak( HANDLE hCommDev )
3325	{
3326	int iIndex; /* index into the handle table */
3327	BOOL bResult; /* result from the device handler's API */
3328	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3329
3330	/* validate handle */
3331	iIndex = _HMHandleQuery(hCommDev); /* get the index */
3332	if (-1 == iIndex) /* error ? */
3333	{
3334	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3335	return (NULL); /* signal failure */
3336	}
3337
3338	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3339	bResult = pHMHandle->pDeviceHandler->SetCommBreak( &pHMHandle->hmHandleData);
3340
3341	return (bResult); /* deliver return code */
3342	}
3343
3344	BOOL HMCommGetCommConfig( HANDLE hCommDev,
3345	LPCOMMCONFIG lpCC,
3346	LPDWORD lpdwSize )
3347	{
3348	int iIndex; /* index into the handle table */
3349	BOOL bResult; /* result from the device handler's API */
3350	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3351
3352	/* validate handle */
3353	iIndex = _HMHandleQuery(hCommDev); /* get the index */
3354	if (-1 == iIndex) /* error ? */
3355	{
3356	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3357	return (NULL); /* signal failure */
3358	}
3359
3360	if(IsBadWritePtr(lpdwSize,sizeof(DWORD)) )
3361	{
3362	SetLastError(ERROR_INVALID_PARAMETER);
3363	return FALSE;
3364	}
3365
3366	if( IsBadWritePtr(lpCC,sizeof(COMMCONFIG)) \|\|
3367	*lpdwSize< sizeof(COMMCONFIG) )
3368	{
3369	SetLastError(ERROR_INSUFFICIENT_BUFFER);
3370	*lpdwSize= sizeof(COMMCONFIG);
3371	return FALSE;
3372	}
3373
3374	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3375	bResult = pHMHandle->pDeviceHandler->GetCommConfig( &pHMHandle->hmHandleData,
3376	lpCC,
3377	lpdwSize);
3378
3379	return (bResult); /* deliver return code */
3380	}
3381
3382	BOOL HMCommEscapeCommFunction( HANDLE hCommDev,
3383	UINT dwFunc )
3384	{
3385	int iIndex; /* index into the handle table */
3386	BOOL bResult; /* result from the device handler's API */
3387	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3388
3389	/* validate handle */
3390	iIndex = _HMHandleQuery(hCommDev); /* get the index */
3391	if (-1 == iIndex) /* error ? */
3392	{
3393	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3394	return (NULL); /* signal failure */
3395	}
3396
3397	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3398
3399	switch(dwFunc)
3400	{
3401	case CLRDTR:
3402	case CLRRTS:
3403	case SETDTR:
3404	case SETRTS:
3405	case SETXOFF:
3406	case SETXON:
3407	bResult = pHMHandle->pDeviceHandler->EscapeCommFunction( &pHMHandle->hmHandleData,
3408	dwFunc);
3409	break;
3410	case SETBREAK:
3411	bResult = pHMHandle->pDeviceHandler->SetCommBreak(&pHMHandle->hmHandleData);
3412	break;
3413	case CLRBREAK:
3414	bResult = pHMHandle->pDeviceHandler->ClearCommBreak(&pHMHandle->hmHandleData);
3415	break;
3416	default:
3417	SetLastError(ERROR_INVALID_PARAMETER);
3418	bResult = FALSE;
3419	}
3420
3421
3422	return (bResult); /* deliver return code */
3423	}
3424
3425	BOOL HMCommSetupComm( HANDLE hCommDev,
3426	DWORD dwInQueue,
3427	DWORD dwOutQueue)
3428	{
3429	int iIndex; /* index into the handle table */
3430	BOOL bResult; /* result from the device handler's API */
3431	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3432
3433	/* validate handle */
3434	iIndex = _HMHandleQuery(hCommDev); /* get the index */
3435	if (-1 == iIndex) /* error ? */
3436	{
3437	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3438	return (NULL); /* signal failure */
3439	}
3440
3441	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3442	bResult = pHMHandle->pDeviceHandler->SetupComm(&pHMHandle->hmHandleData,
3443	dwInQueue,
3444	dwOutQueue);
3445
3446	return (bResult); /* deliver return code */
3447	}
3448
3449	BOOL HMCommClearCommBreak(HANDLE hCommDev)
3450	{
3451	int iIndex; /* index into the handle table */
3452	BOOL bResult; /* result from the device handler's API */
3453	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3454
3455	/* validate handle */
3456	iIndex = _HMHandleQuery(hCommDev); /* get the index */
3457	if (-1 == iIndex) /* error ? */
3458	{
3459	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3460	return (NULL); /* signal failure */
3461	}
3462
3463	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3464	bResult = pHMHandle->pDeviceHandler->ClearCommBreak(&pHMHandle->hmHandleData);
3465
3466	return (bResult); /* deliver return code */
3467	}
3468
3469	BOOL HMCommSetDefaultCommConfig( HANDLE hCommDev,
3470	LPCOMMCONFIG lpCC,
3471	DWORD dwSize)
3472	{
3473	int iIndex; /* index into the handle table */
3474	BOOL bResult; /* result from the device handler's API */
3475	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3476
3477	/* validate handle */
3478	iIndex = _HMHandleQuery(hCommDev); /* get the index */
3479	if (-1 == iIndex) /* error ? */
3480	{
3481	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3482	return (NULL); /* signal failure */
3483	}
3484
3485	if( (lpCC!=NULL) &&
3486	( IsBadReadPtr(lpCC,sizeof(COMMCONFIG)) \|\|
3487	dwSize != sizeof(COMMCONFIG) ) )
3488	{
3489	SetLastError(ERROR_INVALID_PARAMETER);
3490	return FALSE;
3491	}
3492
3493	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3494	bResult = pHMHandle->pDeviceHandler->SetDefaultCommConfig(&pHMHandle->hmHandleData,
3495	lpCC,
3496	dwSize);
3497
3498	return (bResult); /* deliver return code */
3499	}
3500
3501	BOOL HMCommGetDefaultCommConfig( HANDLE hCommDev,
3502	LPCOMMCONFIG lpCC,
3503	LPDWORD lpdwSize)
3504	{
3505	int iIndex; /* index into the handle table */
3506	BOOL bResult; /* result from the device handler's API */
3507	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3508
3509	/* validate handle */
3510	iIndex = _HMHandleQuery(hCommDev); /* get the index */
3511	if (-1 == iIndex) /* error ? */
3512	{
3513	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3514	return (NULL); /* signal failure */
3515	}
3516
3517	if(IsBadWritePtr(lpdwSize,sizeof(DWORD)))
3518	{
3519	SetLastError(ERROR_INVALID_PARAMETER);
3520	return FALSE;
3521	}
3522
3523	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3524	bResult = pHMHandle->pDeviceHandler->GetDefaultCommConfig( &pHMHandle->hmHandleData,
3525	lpCC,
3526	lpdwSize);
3527
3528	return (bResult); /* deliver return code */
3529	}
3530
3531	/*****************************************************************************
3532	* Name : HMOpenThreadToken
3533	* Purpose : router function for NtOpenThreadToken
3534	* Parameters:
3535	* Variables :
3536	* Result :
3537	* Remark :
3538	* Status :
3539	*
3540	* Author : SvL
3541	*****************************************************************************/
3542
3543	DWORD HMOpenThreadToken(HANDLE ThreadHandle,
3544	DWORD DesiredAccess,
3545	DWORD OpenAsSelf,
3546	HANDLE *TokenHandle)
3547	{
3548	int iIndex; /* index into the handle table */
3549	int iIndexNew; /* index into the handle table */
3550	HMDeviceHandler pDeviceHandler; / device handler for this handle */
3551	PHMHANDLEDATA pHMHandleData;
3552	DWORD rc; /* API return code */
3553
3554	pDeviceHandler = HMGlobals.pHMToken; /* device is predefined */
3555
3556	iIndexNew = _HMHandleGetFree(); /* get free handle */
3557	if (-1 == iIndexNew) /* oops, no free handles ! */
3558	{
3559	SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
3560	return ERROR_NOT_ENOUGH_MEMORY;
3561	}
3562
3563	/* initialize the complete HMHANDLEDATA structure */
3564	pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
3565	pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
3566	pHMHandleData->dwAccess = DesiredAccess;
3567	pHMHandleData->dwShare = 0;
3568	pHMHandleData->dwCreation = 0;
3569	pHMHandleData->dwFlags = 0;
3570	pHMHandleData->lpHandlerData = NULL;
3571
3572
3573	/* we've got to mark the handle as occupied here, since another device */
3574	/* could be created within the device handler -> deadlock */
3575
3576	/* write appropriate entry into the handle table if open succeeded */
3577	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
3578	TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
3579
3580	/* call the device handler */
3581
3582	// @@@PH: Note: hFile is a Win32-style handle, it's not (yet) converted to
3583	// a valid HandleManager-internal handle!
3584	rc = pDeviceHandler->OpenThreadToken(&TabWin32Handles[iIndexNew].hmHandleData,
3585	ThreadHandle,
3586	OpenAsSelf);
3587
3588	if (rc != NO_ERROR) /* oops, creation failed within the device handler */
3589	{
3590	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
3591	return (rc); /* signal error */
3592	}
3593	else
3594	SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
3595
3596	TokenHandle = iIndexNew; / return valid handle */
3597	return STATUS_SUCCESS;
3598	}
3599
3600	/*****************************************************************************
3601	* Name : HMOpenProcessToken
3602	* Purpose : router function for NtOpenProcessToken
3603	* Parameters:
3604	* Variables :
3605	* Result :
3606	* Remark :
3607	* Status :
3608	*
3609	* Author : SvL
3610	*****************************************************************************/
3611	DWORD HMOpenProcessToken(HANDLE ProcessHandle,
3612	DWORD DesiredAccess,
3613	DWORD dwUserData,
3614	HANDLE *TokenHandle)
3615	{
3616	int iIndex; /* index into the handle table */
3617	int iIndexNew; /* index into the handle table */
3618	HMDeviceHandler pDeviceHandler; / device handler for this handle */
3619	PHMHANDLEDATA pHMHandleData;
3620	DWORD rc; /* API return code */
3621
3622	pDeviceHandler = HMGlobals.pHMToken; /* device is predefined */
3623
3624	iIndexNew = _HMHandleGetFree(); /* get free handle */
3625	if (-1 == iIndexNew) /* oops, no free handles ! */
3626	{
3627	SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
3628	return ERROR_NOT_ENOUGH_MEMORY;
3629	}
3630
3631	/* initialize the complete HMHANDLEDATA structure */
3632	pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
3633	pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
3634	pHMHandleData->dwAccess = DesiredAccess;
3635	pHMHandleData->dwShare = 0;
3636	pHMHandleData->dwCreation = 0;
3637	pHMHandleData->dwFlags = 0;
3638	pHMHandleData->lpHandlerData = NULL;
3639
3640
3641	/* we've got to mark the handle as occupied here, since another device */
3642	/* could be created within the device handler -> deadlock */
3643
3644	/* write appropriate entry into the handle table if open succeeded */
3645	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
3646	TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
3647
3648	/* call the device handler */
3649
3650	// @@@PH: Note: hFile is a Win32-style handle, it's not (yet) converted to
3651	// a valid HandleManager-internal handle!
3652	rc = pDeviceHandler->OpenProcessToken(&TabWin32Handles[iIndexNew].hmHandleData,
3653	dwUserData,
3654	ProcessHandle);
3655
3656	if (rc != NO_ERROR) /* oops, creation failed within the device handler */
3657	{
3658	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
3659	return (rc); /* signal error */
3660	}
3661	else
3662	SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
3663
3664	TokenHandle = iIndexNew; / return valid handle */
3665	return STATUS_SUCCESS;
3666	}
3667	/*****************************************************************************
3668	* Name : HMCreateThread
3669	* Purpose : router function for CreateThread
3670	* Parameters:
3671	* Variables :
3672	* Result :
3673	* Remark :
3674	* Status :
3675	*
3676	* Author : SvL
3677	*****************************************************************************/
3678	HANDLE HMCreateThread(LPSECURITY_ATTRIBUTES lpsa,
3679	DWORD cbStack,
3680	LPTHREAD_START_ROUTINE lpStartAddr,
3681	LPVOID lpvThreadParm,
3682	DWORD fdwCreate,
3683	LPDWORD lpIDThread,
3684	BOOL fFirstThread)
3685	{
3686	int iIndex; /* index into the handle table */
3687	int iIndexNew; /* index into the handle table */
3688	HMDeviceHandler pDeviceHandler; / device handler for this handle */
3689	PHMHANDLEDATA pHMHandleData;
3690	HANDLE rc; /* API return code */
3691
3692	SetLastError(ERROR_SUCCESS);
3693
3694	pDeviceHandler = HMGlobals.pHMThread; /* device is predefined */
3695
3696	iIndexNew = _HMHandleGetFree(); /* get free handle */
3697	if (-1 == iIndexNew) /* oops, no free handles ! */
3698	{
3699	SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
3700	return 0;
3701	}
3702
3703	/* initialize the complete HMHANDLEDATA structure */
3704	pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
3705	pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
3706	pHMHandleData->dwAccess = 0;
3707	pHMHandleData->dwShare = 0;
3708	pHMHandleData->dwCreation = 0;
3709	pHMHandleData->dwFlags = 0;
3710	pHMHandleData->lpHandlerData = NULL;
3711
3712
3713	/* we've got to mark the handle as occupied here, since another device */
3714	/* could be created within the device handler -> deadlock */
3715
3716	/* write appropriate entry into the handle table if open succeeded */
3717	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
3718	TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
3719
3720	/* call the device handler */
3721
3722	// @@@PH: Note: hFile is a Win32-style handle, it's not (yet) converted to
3723	// a valid HandleManager-internal handle!
3724	rc = pDeviceHandler->CreateThread(&TabWin32Handles[iIndexNew].hmHandleData,
3725	lpsa, cbStack, lpStartAddr,
3726	lpvThreadParm, fdwCreate, lpIDThread, fFirstThread);
3727
3728	if (rc == 0) /* oops, creation failed within the device handler */
3729	{
3730	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
3731	return 0; /* signal error */
3732	}
3733
3734	return iIndexNew;
3735	}
3736	/*****************************************************************************
3737	* Name : HMGetThreadPriority
3738	* Purpose : router function for GetThreadPriority
3739	* Parameters:
3740	* Variables :
3741	* Result :
3742	* Remark :
3743	* Status :
3744	*
3745	* Author : SvL
3746	*****************************************************************************/
3747	INT HMGetThreadPriority(HANDLE hThread)
3748	{
3749	int iIndex; /* index into the handle table */
3750	INT lpResult; /* result from the device handler's API */
3751	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3752
3753	SetLastError(ERROR_SUCCESS);
3754	/* validate handle */
3755	iIndex = _HMHandleQuery(hThread); /* get the index */
3756	if (-1 == iIndex) /* error ? */
3757	{
3758	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3759	return (-1); /* signal failure */
3760	}
3761
3762	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3763	lpResult = pHMHandle->pDeviceHandler->GetThreadPriority(&TabWin32Handles[iIndex].hmHandleData);
3764
3765	return (lpResult); /* deliver return code */
3766	}
3767	/*****************************************************************************
3768	* Name : HMSuspendThread
3769	* Purpose : router function for SuspendThread
3770	* Parameters:
3771	* Variables :
3772	* Result :
3773	* Remark :
3774	* Status :
3775	*
3776	* Author : SvL
3777	*****************************************************************************/
3778	DWORD HMSuspendThread(HANDLE hThread)
3779	{
3780	int iIndex; /* index into the handle table */
3781	HANDLE lpResult; /* result from the device handler's API */
3782	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3783
3784	SetLastError(ERROR_SUCCESS);
3785	/* validate handle */
3786	iIndex = _HMHandleQuery(hThread); /* get the index */
3787	if (-1 == iIndex) /* error ? */
3788	{
3789	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3790	return -1; /* signal failure */
3791	}
3792
3793	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3794	lpResult = pHMHandle->pDeviceHandler->SuspendThread(&TabWin32Handles[iIndex].hmHandleData);
3795
3796	return (lpResult); /* deliver return code */
3797	}
3798	/*****************************************************************************
3799	* Name : HMSetThreadPriority
3800	* Purpose : router function for SetThreadPriority
3801	* Parameters:
3802	* Variables :
3803	* Result :
3804	* Remark :
3805	* Status :
3806	*
3807	* Author : SvL
3808	*****************************************************************************/
3809	BOOL HMSetThreadPriority(HANDLE hThread, int priority)
3810	{
3811	int iIndex; /* index into the handle table */
3812	BOOL lpResult; /* result from the device handler's API */
3813	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3814
3815	SetLastError(ERROR_SUCCESS);
3816	/* validate handle */
3817	iIndex = _HMHandleQuery(hThread); /* get the index */
3818	if (-1 == iIndex) /* error ? */
3819	{
3820	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3821	return FALSE; /* signal failure */
3822	}
3823
3824	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3825	lpResult = pHMHandle->pDeviceHandler->SetThreadPriority(&TabWin32Handles[iIndex].hmHandleData, priority);
3826
3827	return (lpResult); /* deliver return code */
3828	}
3829	/*****************************************************************************
3830	* Name : HMGetThreadContext
3831	* Purpose : router function for GetThreadContext
3832	* Parameters:
3833	* Variables :
3834	* Result :
3835	* Remark :
3836	* Status :
3837	*
3838	* Author : SvL
3839	*****************************************************************************/
3840	BOOL HMGetThreadContext(HANDLE hThread, CONTEXT *lpContext)
3841	{
3842	int iIndex; /* index into the handle table */
3843	BOOL lpResult; /* result from the device handler's API */
3844	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3845
3846	SetLastError(ERROR_SUCCESS);
3847	/* validate handle */
3848	iIndex = _HMHandleQuery(hThread); /* get the index */
3849	if (-1 == iIndex) /* error ? */
3850	{
3851	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3852	return FALSE; /* signal failure */
3853	}
3854
3855	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3856	lpResult = pHMHandle->pDeviceHandler->GetThreadContext(&TabWin32Handles[iIndex].hmHandleData, lpContext);
3857
3858	return (lpResult); /* deliver return code */
3859	}
3860	/*****************************************************************************
3861	* Name : HMSetThreadContext
3862	* Purpose : router function for SetThreadContext
3863	* Parameters:
3864	* Variables :
3865	* Result :
3866	* Remark :
3867	* Status :
3868	*
3869	* Author : SvL
3870	*****************************************************************************/
3871	BOOL HMSetThreadContext(HANDLE hThread, const CONTEXT *lpContext)
3872	{
3873	int iIndex; /* index into the handle table */
3874	BOOL lpResult; /* result from the device handler's API */
3875	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3876
3877	SetLastError(ERROR_SUCCESS);
3878	/* validate handle */
3879	iIndex = _HMHandleQuery(hThread); /* get the index */
3880	if (-1 == iIndex) /* error ? */
3881	{
3882	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3883	return FALSE; /* signal failure */
3884	}
3885
3886	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3887	lpResult = pHMHandle->pDeviceHandler->SetThreadContext(&TabWin32Handles[iIndex].hmHandleData, lpContext);
3888
3889	return (lpResult); /* deliver return code */
3890	}
3891	/*****************************************************************************
3892	* Name : HMTerminateThread
3893	* Purpose : router function for TerminateThread
3894	* Parameters:
3895	* Variables :
3896	* Result :
3897	* Remark :
3898	* Status :
3899	*
3900	* Author : SvL
3901	*****************************************************************************/
3902	BOOL HMTerminateThread(HANDLE hThread, DWORD exitcode)
3903	{
3904	int iIndex; /* index into the handle table */
3905	BOOL lpResult; /* result from the device handler's API */
3906	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3907
3908	SetLastError(ERROR_SUCCESS);
3909	/* validate handle */
3910	iIndex = _HMHandleQuery(hThread); /* get the index */
3911	if (-1 == iIndex) /* error ? */
3912	{
3913	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3914	return FALSE; /* signal failure */
3915	}
3916
3917	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3918	lpResult = pHMHandle->pDeviceHandler->TerminateThread(&TabWin32Handles[iIndex].hmHandleData, exitcode);
3919
3920	return (lpResult); /* deliver return code */
3921	}
3922	/*****************************************************************************
3923	* Name : HMResumeThread
3924	* Purpose : router function for ResumeThread
3925	* Parameters:
3926	* Variables :
3927	* Result :
3928	* Remark :
3929	* Status :
3930	*
3931	* Author : SvL
3932	*****************************************************************************/
3933	DWORD HMResumeThread(HANDLE hThread)
3934	{
3935	int iIndex; /* index into the handle table */
3936	DWORD lpResult; /* result from the device handler's API */
3937	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3938
3939	SetLastError(ERROR_SUCCESS);
3940	/* validate handle */
3941	iIndex = _HMHandleQuery(hThread); /* get the index */
3942	if (-1 == iIndex) /* error ? */
3943	{
3944	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3945	return -1; /* signal failure */
3946	}
3947
3948	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3949	lpResult = pHMHandle->pDeviceHandler->ResumeThread(&TabWin32Handles[iIndex].hmHandleData);
3950
3951	return (lpResult); /* deliver return code */
3952	}
3953
3954	/*****************************************************************************
3955	* Name : HMGetExitCodeThread
3956	* Purpose : router function for GetExitCodeThread
3957	* Parameters:
3958	* Variables :
3959	* Result :
3960	* Remark :
3961	* Status :
3962	*
3963	* Author : SvL
3964	*****************************************************************************/
3965	BOOL HMGetExitCodeThread(HANDLE hThread, LPDWORD lpExitCode)
3966	{
3967	int iIndex; /* index into the handle table */
3968	BOOL lpResult; /* result from the device handler's API */
3969	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3970
3971	SetLastError(ERROR_SUCCESS);
3972	/* validate handle */
3973	iIndex = _HMHandleQuery(hThread); /* get the index */
3974	if (-1 == iIndex) /* error ? */
3975	{
3976	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3977	return FALSE; /* signal failure */
3978	}
3979
3980	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3981	lpResult = pHMHandle->pDeviceHandler->GetExitCodeThread(&TabWin32Handles[iIndex].hmHandleData, lpExitCode);
3982
3983	return (lpResult); /* deliver return code */
3984	}
3985	/*****************************************************************************
3986	* Name : HMSetThreadTerminated
3987	* Purpose :
3988	* Parameters:
3989	* Variables :
3990	* Result :
3991	* Remark :
3992	* Status :
3993	*
3994	* Author : SvL
3995	*****************************************************************************/
3996	BOOL HMSetThreadTerminated(HANDLE hThread)
3997	{
3998	int iIndex; /* index into the handle table */
3999	BOOL lpResult; /* result from the device handler's API */
4000	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
4001
4002	SetLastError(ERROR_SUCCESS);
4003	/* validate handle */
4004	iIndex = _HMHandleQuery(hThread); /* get the index */
4005	if (-1 == iIndex) /* error ? */
4006	{
4007	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
4008	return FALSE; /* signal failure */
4009	}
4010
4011	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
4012	lpResult = pHMHandle->pDeviceHandler->SetThreadTerminated(&TabWin32Handles[iIndex].hmHandleData);
4013
4014	return (lpResult); /* deliver return code */
4015	}
4016
4017	/*****************************************************************************
4018	* Name : HMPeekNamedPipe
4019	* Purpose :
4020	* Parameters:
4021	* Variables :
4022	* Result :
4023	* Remark :
4024	* Status :
4025	*
4026	* Author : Przemyslaw Dobrowolski
4027	*****************************************************************************/
4028	BOOL HMPeekNamedPipe(HANDLE hPipe,
4029	LPVOID lpvBuffer,
4030	DWORD cbBuffer,
4031	LPDWORD lpcbRead,
4032	LPDWORD lpcbAvail,
4033	LPDWORD lpcbMessage)
4034	{
4035	int iIndex; /* index into the handle table */
4036	BOOL lpResult; /* result from the device handler's API */
4037	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
4038
4039	SetLastError(ERROR_SUCCESS);
4040	/* validate handle */
4041	iIndex = _HMHandleQuery(hPipe); /* get the index */
4042	if (-1 == iIndex) /* error ? */
4043	{
4044	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
4045	return FALSE; /* signal failure */
4046	}
4047
4048	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
4049	lpResult = pHMHandle->pDeviceHandler->PeekNamedPipe(&TabWin32Handles[iIndex].hmHandleData,
4050	lpvBuffer,
4051	cbBuffer,
4052	lpcbRead,
4053	lpcbAvail,
4054	lpcbMessage);
4055
4056	return (lpResult); /* deliver return code */
4057	}
4058
4059	/*****************************************************************************
4060	* Name : HMCreateNamedPipe
4061	* Purpose :
4062	* Parameters:
4063	* Variables :
4064	* Result :
4065	* Remark :
4066	* Status :
4067	*
4068	* Author : Przemyslaw Dobrowolski
4069	*****************************************************************************/
4070	DWORD HMCreateNamedPipe(LPCTSTR lpName,
4071	DWORD dwOpenMode,
4072	DWORD dwPipeMode,
4073	DWORD nMaxInstances,
4074	DWORD nOutBufferSize,
4075	DWORD nInBufferSize,
4076	DWORD nDefaultTimeOut,
4077	LPSECURITY_ATTRIBUTES lpSecurityAttributes)
4078	{
4079	int iIndex; /* index into the handle table */
4080	int iIndexNew; /* index into the handle table */
4081	HMDeviceHandler pDeviceHandler; / device handler for this handle */
4082	PHMHANDLEDATA pHMHandleData;
4083	HANDLE rc; /* API return code */
4084
4085	SetLastError(ERROR_SUCCESS);
4086
4087	pDeviceHandler = HMGlobals.pHMNamedPipe; /* device is predefined */
4088
4089	iIndexNew = _HMHandleGetFree(); /* get free handle */
4090	if (-1 == iIndexNew) /* oops, no free handles ! */
4091	{
4092	SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
4093	return 0;
4094	}
4095
4096	/* initialize the complete HMHANDLEDATA structure */
4097	pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
4098	pHMHandleData->dwType = FILE_TYPE_PIPE;
4099	pHMHandleData->dwAccess = 0;
4100	pHMHandleData->dwShare = 0;
4101	pHMHandleData->dwCreation = 0;
4102	pHMHandleData->dwFlags = 0;
4103	pHMHandleData->lpHandlerData = NULL;
4104
4105	/* we've got to mark the handle as occupied here, since another device */
4106	/* could be created within the device handler -> deadlock */
4107
4108	/* write appropriate entry into the handle table if open succeeded */
4109	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
4110	TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
4111
4112	/* call the device handler */
4113
4114	rc = pDeviceHandler->CreateNamedPipe(&TabWin32Handles[iIndexNew].hmHandleData,
4115	lpName,dwOpenMode,
4116	dwPipeMode,nMaxInstances,
4117	nOutBufferSize,nInBufferSize,
4118	nDefaultTimeOut,lpSecurityAttributes);
4119
4120	if (rc == 0) /* oops, creation failed within the device handler */
4121	{
4122	TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
4123	return 0; /* signal error */
4124	}
4125
4126	dprintf(("Win32 Handle -> %08x",iIndexNew));
4127
4128	return iIndexNew;
4129	}
4130
4131	/*****************************************************************************
4132	* Name : HMConnectNamedPipe
4133	* Purpose :
4134	* Parameters:
4135	* Variables :
4136	* Result :
4137	* Remark :
4138	* Status :
4139	*
4140	* Author : Przemyslaw Dobrowolski
4141	*****************************************************************************/
4142	BOOL HMConnectNamedPipe(HANDLE hPipe, LPOVERLAPPED lpOverlapped)
4143	{
4144	int iIndex; /* index into the handle table */
4145	BOOL lpResult; /* result from the device handler's API */
4146	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
4147
4148	SetLastError(ERROR_SUCCESS);
4149	/* validate handle */
4150	iIndex = _HMHandleQuery(hPipe); /* get the index */
4151	if (-1 == iIndex) /* error ? */
4152	{
4153	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
4154	return FALSE; /* signal failure */
4155	}
4156
4157	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
4158	lpResult = pHMHandle->pDeviceHandler->ConnectNamedPipe(&TabWin32Handles[iIndex].hmHandleData,
4159	lpOverlapped);
4160
4161	return (lpResult); /* deliver return code */
4162	}
4163
4164	/*****************************************************************************
4165	* Name : HMDisconnectNamedPipe
4166	* Purpose :
4167	* Parameters:
4168	* Variables :
4169	* Result :
4170	* Remark :
4171	* Status :
4172	*
4173	* Author : Przemyslaw Dobrowolski
4174	*****************************************************************************/
4175	BOOL HMDisconnectNamedPipe(HANDLE hPipe)
4176	{
4177	int iIndex; /* index into the handle table */
4178	BOOL lpResult; /* result from the device handler's API */
4179	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
4180
4181	SetLastError(ERROR_SUCCESS);
4182	/* validate handle */
4183	iIndex = _HMHandleQuery(hPipe); /* get the index */
4184	if (-1 == iIndex) /* error ? */
4185	{
4186	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
4187	return FALSE; /* signal failure */
4188	}
4189
4190	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
4191	lpResult = pHMHandle->pDeviceHandler->DisconnectNamedPipe(&TabWin32Handles[iIndex].hmHandleData);
4192
4193	return (lpResult); /* deliver return code */
4194	}
4195
4196	/*****************************************************************************
4197	* Name : HMGetNamedPipeHandleState
4198	* Purpose :
4199	* Parameters:
4200	* Variables :
4201	* Result :
4202	* Remark :
4203	* Status :
4204	*
4205	* Author : Przemyslaw Dobrowolski
4206	*****************************************************************************/
4207	BOOL HMGetNamedPipeHandleState(HANDLE hPipe,
4208	LPDWORD lpState,
4209	LPDWORD lpCurInstances,
4210	LPDWORD lpMaxCollectionCount,
4211	LPDWORD lpCollectDataTimeout,
4212	LPTSTR lpUserName,
4213	DWORD nMaxUserNameSize)
4214	{
4215	int iIndex; /* index into the handle table */
4216	BOOL lpResult; /* result from the device handler's API */
4217	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
4218
4219	SetLastError(ERROR_SUCCESS);
4220	/* validate handle */
4221	iIndex = _HMHandleQuery(hPipe); /* get the index */
4222	if (-1 == iIndex) /* error ? */
4223	{
4224	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
4225	return FALSE; /* signal failure */
4226	}
4227
4228	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
4229	lpResult = pHMHandle->pDeviceHandler->GetNamedPipeHandleState(&TabWin32Handles[iIndex].hmHandleData,
4230	lpState,
4231	lpCurInstances,
4232	lpMaxCollectionCount,
4233	lpCollectDataTimeout,
4234	lpUserName,
4235	nMaxUserNameSize);
4236
4237
4238	return (lpResult); /* deliver return code */
4239	}
4240
4241	/*****************************************************************************
4242	* Name : HMGetNamedPipeInfo
4243	* Purpose :
4244	* Parameters:
4245	* Variables :
4246	* Result :
4247	* Remark :
4248	* Status :
4249	*
4250	* Author : Przemyslaw Dobrowolski
4251	*****************************************************************************/
4252	BOOL HMGetNamedPipeInfo(HANDLE hPipe,
4253	LPDWORD lpFlags,
4254	LPDWORD lpOutBufferSize,
4255	LPDWORD lpInBufferSize,
4256	LPDWORD lpMaxInstances)
4257	{
4258	int iIndex; /* index into the handle table */
4259	BOOL lpResult; /* result from the device handler's API */
4260	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
4261
4262	SetLastError(ERROR_SUCCESS);
4263	/* validate handle */
4264	iIndex = _HMHandleQuery(hPipe); /* get the index */
4265	if (-1 == iIndex) /* error ? */
4266	{
4267	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
4268	return FALSE; /* signal failure */
4269	}
4270
4271	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
4272	lpResult = pHMHandle->pDeviceHandler->GetNamedPipeInfo(&TabWin32Handles[iIndex].hmHandleData,
4273	lpFlags,
4274	lpOutBufferSize,
4275	lpInBufferSize,
4276	lpMaxInstances);
4277
4278	return (lpResult); /* deliver return code */
4279	}
4280
4281	/*****************************************************************************
4282	* Name : HMTransactNamedPipe
4283	* Purpose :
4284	* Parameters:
4285	* Variables :
4286	* Result :
4287	* Remark :
4288	* Status :
4289	*
4290	* Author : Przemyslaw Dobrowolski
4291	*****************************************************************************/
4292	DWORD HMTransactNamedPipe(HANDLE hPipe,
4293	LPVOID lpvWriteBuf,
4294	DWORD cbWriteBuf,
4295	LPVOID lpvReadBuf,
4296	DWORD cbReadBuf,
4297	LPDWORD lpcbRead,
4298	LPOVERLAPPED lpo)
4299	{
4300	int iIndex; /* index into the handle table */
4301	DWORD lpResult; /* result from the device handler's API */
4302	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
4303
4304	SetLastError(ERROR_SUCCESS);
4305	/* validate handle */
4306	iIndex = _HMHandleQuery(hPipe); /* get the index */
4307	if (-1 == iIndex) /* error ? */
4308	{
4309	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
4310	return FALSE; /* signal failure */
4311	}
4312
4313	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
4314	lpResult = pHMHandle->pDeviceHandler->TransactNamedPipe(&TabWin32Handles[iIndex].hmHandleData,
4315	lpvWriteBuf,
4316	cbWriteBuf,
4317	lpvReadBuf,
4318	cbReadBuf,
4319	lpcbRead,
4320	lpo);
4321
4322	return (lpResult); /* deliver return code */
4323	}
4324
4325	/*****************************************************************************
4326	* Name : HMSetNamedPipeHandleState
4327	* Purpose :
4328	* Parameters:
4329	* Variables :
4330	* Result :
4331	* Remark :
4332	* Status :
4333	*
4334	* Author : Przemyslaw Dobrowolski
4335	*****************************************************************************/
4336	BOOL HMSetNamedPipeHandleState(HANDLE hPipe,
4337	LPDWORD lpdwMode,
4338	LPDWORD lpcbMaxCollect,
4339	LPDWORD lpdwCollectDataTimeout)
4340	{
4341	int iIndex; /* index into the handle table */
4342	BOOL lpResult; /* result from the device handler's API */
4343	PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
4344
4345	SetLastError(ERROR_SUCCESS);
4346	/* validate handle */
4347	iIndex = _HMHandleQuery(hPipe); /* get the index */
4348	if (-1 == iIndex) /* error ? */
4349	{
4350	SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
4351	return FALSE; /* signal failure */
4352	}
4353
4354	pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
4355	lpResult = pHMHandle->pDeviceHandler->SetNamedPipeHandleState(&TabWin32Handles[iIndex].hmHandleData,
4356	lpdwMode,
4357	lpcbMaxCollect,
4358	lpdwCollectDataTimeout);
4359
4360	return (lpResult); /* deliver return code */
4361	}
4362
4363	/*****************************************************************************
4364	* Name : HMCreatePipe
4365	* Purpose :
4366	* Parameters:
4367	* Variables :
4368	* Result :
4369	* Remark :
4370	* Status : NOT TESTED!
4371	*
4372	* Author : Przemyslaw Dobrowolski
4373	*****************************************************************************/
4374	BOOL HMCreatePipe(PHANDLE phRead,
4375	PHANDLE phWrite,
4376	LPSECURITY_ATTRIBUTES lpsa,
4377	DWORD cbPipe)
4378	{
4379	int iIndex; /* index into the handle table */
4380	int iIndexNewRead; /* index into the handle table */
4381	int iIndexNewWrite; /* index into the handle table */
4382	HMDeviceHandler pDeviceHandler; / device handler for this handle */
4383	PHMHANDLEDATA pHMHandleData;
4384	HANDLE rc; /* API return code */
4385
4386	SetLastError(ERROR_SUCCESS);
4387
4388	pDeviceHandler = HMGlobals.pHMNamedPipe; /* device is predefined */
4389
4390	iIndexNewRead = _HMHandleGetFree(); /* get free handle */
4391	if (-1 == iIndexNewRead) /* oops, no free handles ! */
4392	{
4393	SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
4394	return 0;
4395	}
4396
4397	iIndexNewWrite = _HMHandleGetFree(); /* get free handle */
4398	if (-1 == iIndexNewWrite) /* oops, no free handles ! */
4399	{
4400	SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
4401	return 0;
4402	}
4403
4404
4405	/* initialize the complete HMHANDLEDATA structure */
4406	pHMHandleData = &TabWin32Handles[iIndexNewRead].hmHandleData;
4407	pHMHandleData->dwType = FILE_TYPE_PIPE;
4408	pHMHandleData->dwAccess = 0;
4409	pHMHandleData->dwShare = 0;
4410	pHMHandleData->dwCreation = 0;
4411	pHMHandleData->dwFlags = 0;
4412	pHMHandleData->lpHandlerData = NULL;
4413
4414	/* we've got to mark the handle as occupied here, since another device */
4415	/* could be created within the device handler -> deadlock */
4416
4417	/* write appropriate entry into the handle table if open succeeded */
4418	TabWin32Handles[iIndexNewRead].hmHandleData.hHMHandle = iIndexNewRead;
4419	TabWin32Handles[iIndexNewRead].pDeviceHandler = pDeviceHandler;
4420
4421	/* initialize the complete HMHANDLEDATA structure */
4422	pHMHandleData = &TabWin32Handles[iIndexNewWrite].hmHandleData;
4423	pHMHandleData->dwType = FILE_TYPE_PIPE;
4424	pHMHandleData->dwAccess = 0;
4425	pHMHandleData->dwShare = 0;
4426	pHMHandleData->dwCreation = 0;
4427	pHMHandleData->dwFlags = 0;
4428	pHMHandleData->lpHandlerData = NULL;
4429
4430	/* we've got to mark the handle as occupied here, since another device */
4431	/* could be created within the device handler -> deadlock */
4432
4433	/* write appropriate entry into the handle table if open succeeded */
4434	TabWin32Handles[iIndexNewWrite].hmHandleData.hHMHandle = iIndexNewWrite;
4435	TabWin32Handles[iIndexNewWrite].pDeviceHandler = pDeviceHandler;
4436	/* call the device handler */
4437
4438	rc = pDeviceHandler->CreatePipe(&TabWin32Handles[iIndexNewRead].hmHandleData,
4439	&TabWin32Handles[iIndexNewWrite].hmHandleData,
4440	lpsa,
4441	cbPipe);
4442
4443	if (rc == 0) /* oops, creation failed within the device handler */
4444	{
4445	TabWin32Handles[iIndexNewRead].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
4446	TabWin32Handles[iIndexNewWrite].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
4447	return FALSE; /* signal error */
4448	}
4449
4450	*phRead = iIndexNewRead;
4451	*phWrite = iIndexNewWrite;
4452
4453	return TRUE;
4454	}

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