source: trunk/src/kernel32/HandleManager.cpp@ 3948

Last change on this file since 3948 was 3948, checked in by sandervl, 25 years ago

mmap + share hack
File size: 151.2 KB
Line 
1/* $Id: HandleManager.cpp,v 1.45 2000-08-04 21:12:05 sandervl 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 "HMOpen32.h"
53#include "HMEvent.h"
54#include "HMFile.h"
55#include "HMMutex.h"
56#include "HMSemaphore.h"
57#include "HMMMap.h"
58#include "HMComm.h"
59#include "HMToken.h"
60#include "HMThread.h"
61#include "HMNPipe.h"
62#include <vmutex.h>
63
64#define DBG_LOCALLOG DBG_handlemanager
65#include "dbglocal.h"
66
67/*****************************************************************************
68 * Defines *
69 *****************************************************************************/
70
71 /* this is the size of our currently static handle table */
72#define MAX_OS2_HMHANDLES 4096
73
74
75/*****************************************************************************
76 * Structures *
77 *****************************************************************************/
78
79
80typedef struct _HMHANDLE
81{
82 HMDeviceHandler *pDeviceHandler; /* handler for this pseudo-device */
83 HMHANDLEDATA hmHandleData; /* attributes of the handle */
84} HMHANDLE, *PHMHANDLE;
85
86
87typedef struct _HMDEVICE
88{
89 struct _HMDEVICE *pNext; /* pointer to next device in chain */
90
91 LPSTR pszDeviceName; /* name or alias of the pseudo-device */
92 HMDeviceHandler *pDeviceHandler; /* handler for this pseudo-device */
93} HMDEVICE, *PHMDEVICE;
94
95
96/*****************************************************************************
97 * This pseudo-device logs all device requests to the logfile and returns *
98 * ERROR_INVALID_FUNCTION to virtually all requests -> debugging *
99 *****************************************************************************/
100class HMDeviceDebugClass : public HMDeviceHandler
101{
102 public:
103 HMDeviceDebugClass(LPCSTR lpDeviceName) : HMDeviceHandler(lpDeviceName) {}
104};
105
106
107/*****************************************************************************
108 * Process Global Structures *
109 *****************************************************************************/
110
111
112 /* the device name is repeated here to enable device alias names */
113static PHMDEVICE TabWin32Devices = NULL;
114
115static HMHANDLE TabWin32Handles[MAX_OS2_HMHANDLES]; /* static handle table */
116VMutex handleMutex;
117
118struct _HMGlobals
119{
120 HANDLE hStandardIn; /* stdin handle to CONIN$ */
121 HANDLE hStandardOut; /* stdout handle to CONOUT$ */
122 HANDLE hStandardError; /* stderr handle to CONOUT$ */
123
124 BOOL fIsInitialized; /* if HM is initialized already ? */
125 /* this MUST !!! be false initially */
126
127 HMDeviceHandler *pHMOpen32; /* default handle manager instance */
128 HMDeviceHandler *pHMEvent; /* static instances of subsystems */
129 HMDeviceHandler *pHMFile;
130 HMDeviceHandler *pHMMutex;
131 HMDeviceHandler *pHMSemaphore;
132 HMDeviceHandler *pHMFileMapping; /* static instances of subsystems */
133 HMDeviceHandler *pHMComm; /* serial communication */
134 HMDeviceHandler *pHMToken; /* security tokens */
135 HMDeviceHandler *pHMThread;
136 HMDeviceHandler *pHMNamedPipe;
137
138 ULONG ulHandleLast; /* index of last used handle */
139} HMGlobals;
140
141
142/*****************************************************************************
143 * Local Prototypes *
144 *****************************************************************************/
145
146 /* get appropriate device handler by the device name */
147static HMDeviceHandler* _Optlink _HMDeviceFind(LPSTR pszDeviceName);
148
149 /* get next free handle from the handle table */
150static ULONG _Optlink _HMHandleGetFree(void);
151
152 /* get handle table entry from handle */
153static ULONG _Optlink _HMHandleQuery(HANDLE hHandle);
154
155
156
157/*****************************************************************************
158 * Name : static HMDeviceHandler * _HMDeviceFind
159 * Purpose : obtain appropriate device handler from the table by searching
160 * for a device name or alias
161 * Parameters: PSZ pszDeviceName
162 * Variables :
163 * Result : HMDeviceHandler * - pointer to the handler object
164 * Remark :
165 * Status :
166 *
167 * Author : Patrick Haller [Wed, 1998/02/11 20:42]
168 *****************************************************************************/
169
170static HMDeviceHandler *_HMDeviceFind (LPSTR pszDeviceName)
171{
172 PHMDEVICE pHMDevice; /* iterator over the device table */
173
174 if (pszDeviceName != NULL)
175 for (pHMDevice = TabWin32Devices; /* loop over all devices in the table */
176 pHMDevice != NULL;
177 pHMDevice = pHMDevice->pNext)
178 {
179 if (stricmp(pHMDevice->pszDeviceName, /* case-insensitive search */
180 pszDeviceName) == 0)
181 return (pHMDevice->pDeviceHandler); /* OK, we've found our device */
182 }
183
184 return (HMGlobals.pHMOpen32); /* haven't found anything, return default */
185}
186
187
188/*****************************************************************************
189 * Name : static int _HMHandleGetFree
190 * Purpose : get index to first free handle in the handle table
191 * Parameters:
192 * Variables :
193 * Result : int iIndex - index to the table or -1 in case of error
194 * Remark :
195 * Status :
196 *
197 * Author : Patrick Haller [Wed, 1998/02/11 20:43]
198 *****************************************************************************/
199
200static ULONG _HMHandleGetFree(void)
201{
202 register ULONG ulLoop;
203
204 handleMutex.enter();
205
206 for (ulLoop = 1; // @@@PH Note, this is an experimental change
207 // 0L as hHandle is sometimes considered invalid!
208 // this will never return 0l as free handle now.
209 ulLoop < MAX_OS2_HMHANDLES;
210 ulLoop++)
211 {
212 /* free handle found ? */
213 if (INVALID_HANDLE_VALUE == TabWin32Handles[ulLoop].hmHandleData.hHMHandle) {
214 TabWin32Handles[ulLoop].hmHandleData.dwUserData = 0;
215 TabWin32Handles[ulLoop].hmHandleData.dwInternalType = HMTYPE_UNKNOWN;
216 handleMutex.leave();
217 return (ulLoop); /* OK, then return it to the caller */
218 }
219 }
220
221 handleMutex.leave();
222 return (INVALID_HANDLE_VALUE); /* haven't found any free handle */
223}
224
225
226/*****************************************************************************
227 * Name : HMHandleGetUserData
228 * Purpose : Get the dwUserData dword for a specific handle
229 * Parameters: HANDLE hHandle
230 * Variables :
231 * Result : -1 or dwUserData
232 * Remark :
233 * Status :
234 *
235 * Author : SvL
236 *****************************************************************************/
237DWORD HMHandleGetUserData(ULONG hHandle)
238{
239 if (hHandle > MAX_OS2_HMHANDLES) /* check the table range */
240 return (-1);
241 /* Oops, invalid handle ! */
242 if (INVALID_HANDLE_VALUE == TabWin32Handles[hHandle].hmHandleData.hHMHandle)
243 return (-1); /* nope, ERROR_INVALID_HANDLE */
244
245 return TabWin32Handles[hHandle].hmHandleData.dwUserData;
246}
247
248
249/*****************************************************************************
250 * Name : static int _HMHandleQuery
251 * Purpose : gets the index of handle table entry as fast as possible from
252 * the specified handle
253 * Parameters: HANDLE hHandle
254 * Variables :
255 * Result : index or -1 in case of error
256 * Remark :
257 * Status :
258 *
259 * Author : Patrick Haller [Wed, 1998/02/11 20:44]
260 *****************************************************************************/
261
262static ULONG _HMHandleQuery(HANDLE hHandle)
263{
264 if (hHandle > MAX_OS2_HMHANDLES) /* check the table range */
265 return (INVALID_HANDLE_VALUE); /* nope, ERROR_INVALID_HANDLE */
266
267 /* Oops, invalid handle ! */
268 if (INVALID_HANDLE_VALUE == TabWin32Handles[hHandle].hmHandleData.hHMHandle)
269 return (INVALID_HANDLE_VALUE); /* nope, ERROR_INVALID_HANDLE */
270
271 return ( hHandle); /* OK, we've got our handle index */
272}
273
274
275/*****************************************************************************
276 * Name : DWORD HMDeviceRegister
277 * Purpose : register a device with the handle manager
278 * Parameters: PSZ pszDeviceName
279 * HMDeviceHandler *pDeviceHandler
280 * Variables :
281 * Result : API returncode
282 * Remark :
283 * Status :
284 *
285 * Author : Patrick Haller [Wed, 1998/02/12 20:44]
286 *****************************************************************************/
287
288DWORD HMDeviceRegister(LPSTR pszDeviceName,
289 HMDeviceHandler *pDeviceHandler)
290{
291 PHMDEVICE pHMDevice; /* our new device to be allocated */
292
293 if ( (pszDeviceName == NULL) || /* check parameters */
294 (pDeviceHandler == NULL) )
295 return (ERROR_INVALID_PARAMETER); /* raise error conditon */
296
297
298 pHMDevice = (PHMDEVICE) malloc (sizeof (HMDEVICE) ); /* allocate memory */
299 if (pHMDevice == NULL) /* check proper allocation */
300 return (ERROR_NOT_ENOUGH_MEMORY); /* signal error */
301
302 pHMDevice->pszDeviceName = strdup(pszDeviceName); /* copy name */
303 if (pHMDevice->pszDeviceName == NULL) /* check proper allocation */
304 {
305 free (pHMDevice); /* free previously allocated memory */
306 return (ERROR_NOT_ENOUGH_MEMORY); /* signal error */
307 }
308
309 pHMDevice->pDeviceHandler = pDeviceHandler; /* store pointer to device */
310 pHMDevice->pNext = TabWin32Devices; /* establish linkage */
311
312 TabWin32Devices = pHMDevice; /* insert new node as root in the list */
313
314 return (NO_ERROR);
315}
316
317
318/*****************************************************************************
319 * Name : DWORD HMInitialize
320 * Purpose : Initialize the handlemanager
321 * Parameters: -
322 * Variables : -
323 * Result : always NO_ERROR
324 * Remark : this routine just stores the standard handles in the
325 * internal table within the HandleManager
326 * Status :
327 *
328 * Author : Patrick Haller [Wed, 1998/02/12 20:44]
329 *****************************************************************************/
330
331DWORD HMInitialize(void)
332{
333 ULONG ulIndex;
334
335 if (HMGlobals.fIsInitialized != TRUE)
336 {
337 HMGlobals.fIsInitialized = TRUE; /* OK, done */
338
339 handleMutex.enter();
340 // fill handle table
341 for(ulIndex = 0; ulIndex < MAX_OS2_HMHANDLES; ulIndex++) {
342 TabWin32Handles[ulIndex].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
343 }
344 handleMutex.leave();
345
346 dprintf(("KERNEL32:HandleManager:HMInitialize() storing handles.\n"));
347
348 memset(&HMGlobals, /* zero out the structure first */
349 0,
350 sizeof(HMGlobals));
351
352 /* copy standard handles from OS/2's Open32 Subsystem */
353 HMSetStdHandle(STD_INPUT_HANDLE, O32_GetStdHandle(STD_INPUT_HANDLE));
354 HMSetStdHandle(STD_OUTPUT_HANDLE, O32_GetStdHandle(STD_OUTPUT_HANDLE));
355 HMSetStdHandle(STD_ERROR_HANDLE, O32_GetStdHandle(STD_ERROR_HANDLE));
356
357 /* create handle manager instance for Open32 handles */
358 HMGlobals.pHMOpen32 = new HMDeviceOpen32Class("\\\\.\\");
359 HMGlobals.pHMEvent = new HMDeviceEventClass("\\\\EVENT\\");
360 HMGlobals.pHMFile = new HMDeviceFileClass("\\\\FILE\\");
361 HMGlobals.pHMMutex = new HMDeviceMutexClass("\\\\MUTEX\\");
362 HMGlobals.pHMSemaphore = new HMDeviceSemaphoreClass("\\\\SEM\\");
363 HMGlobals.pHMFileMapping= new HMDeviceMemMapClass("\\\\MEMMAP\\");
364 HMGlobals.pHMComm = new HMDeviceCommClass("\\\\COM\\");
365 HMGlobals.pHMToken = new HMDeviceTokenClass("\\\\TOKEN\\");
366 HMGlobals.pHMThread = new HMDeviceThreadClass("\\\\THREAD\\");
367 HMGlobals.pHMNamedPipe = new HMDeviceNamedPipeClass("\\\\PIPE\\");
368 }
369 return (NO_ERROR);
370}
371
372
373/*****************************************************************************
374 * Name : DWORD HMTerminate
375 * Purpose : Terminate the handlemanager
376 * Parameters:
377 * Variables :
378 * Result :
379 * Remark :
380 * Status :
381 *
382 * Author : Patrick Haller [Wed, 1998/02/12 20:44]
383 *****************************************************************************/
384
385DWORD HMTerminate(void)
386{
387 /* @@@PH we could deallocate the device list here */
388
389 delete HMGlobals.pHMOpen32;
390 delete HMGlobals.pHMEvent;
391 delete HMGlobals.pHMFile;
392 delete HMGlobals.pHMMutex;
393 delete HMGlobals.pHMSemaphore;
394 delete HMGlobals.pHMFileMapping;
395 delete HMGlobals.pHMComm;
396
397 return (NO_ERROR);
398}
399
400
401/*****************************************************************************/
402/* handle translation buffer management */
403/* */
404/* Since some Win32 applications rely (!) on 16-bit handles, we've got to do */
405/* 32-bit to 16-bit and vs vsa translation here. */
406/* Filehandle-based functions should be routed via the handlemanager instead */
407/* of going to Open32 directly. */
408/*****************************************************************************/
409
410
411/*****************************************************************************
412 * Name : DWORD HMHandleAllocate
413 * Purpose : allocate a handle in the translation table
414 * Parameters: PULONG pHandle16 - to return the allocated handle
415 * ULONG hHandle32 - the associated OS/2 handle
416 * Variables :
417 * Result : API returncode
418 * Remark : no parameter checking is done, phHandle may not be invalid
419 * hHandle32 shouldn't be 0
420 * Should be protected with a HM-Mutex !
421 * Status :
422 *
423 * Author : Patrick Haller [Wed, 1998/02/11 20:44]
424 *****************************************************************************/
425
426DWORD HMHandleAllocate (PULONG phHandle16,
427 ULONG hHandleOS2)
428{
429 register ULONG ulHandle;
430
431#ifdef DEBUG_LOCAL
432 dprintf(("KERNEL32: HMHandleAllocate (%08xh,%08xh)\n",
433 phHandle16,
434 hHandleOS2));
435#endif
436
437 ulHandle = HMGlobals.ulHandleLast; /* get free handle */
438
439 handleMutex.enter();
440
441 if(ulHandle == 0) {
442 ulHandle = 1; //SvL: Start searching from index 1
443 }
444 do
445 {
446 /* check if handle is free */
447 if (TabWin32Handles[ulHandle].hmHandleData.hHMHandle == INVALID_HANDLE_VALUE)
448 {
449 *phHandle16 = ulHandle;
450 TabWin32Handles[ulHandle].hmHandleData.hHMHandle = hHandleOS2;
451 HMGlobals.ulHandleLast = ulHandle; /* to shorten search times */
452
453 handleMutex.leave();
454 return (NO_ERROR); /* OK */
455 }
456
457 ulHandle++; /* skip to next entry */
458
459 if (ulHandle >= MAX_OS2_HMHANDLES) /* check boundary */
460 ulHandle = 1;
461 }
462 while (ulHandle != HMGlobals.ulHandleLast);
463
464 handleMutex.leave();
465
466 return (ERROR_TOO_MANY_OPEN_FILES); /* OK, we're done */
467}
468
469
470/*****************************************************************************
471 * Name : DWORD HMHandleFree
472 * Purpose : free a handle from the translation table
473 * Parameters: ULONG hHandle16 - the handle to be freed
474 * Variables :
475 * Result : API returncode
476 * Remark : no parameter checking is done, hHandle16 MAY NEVER exceed
477 * the MAX_TRANSLATION_HANDLES boundary
478 * Status :
479 *
480 * Author : Patrick Haller [Wed, 1998/02/11 20:44]
481 *****************************************************************************/
482
483DWORD HMHandleFree (ULONG hHandle16)
484{
485 ULONG rc; /* API returncode */
486
487#ifdef DEBUG_LOCAL
488 dprintf(("KERNEL32: HMHandleFree (%08xh)\n",
489 hHandle16));
490#endif
491
492 rc = HMHandleValidate(hHandle16); /* verify handle */
493 if (rc != NO_ERROR) /* check errors */
494 return (rc); /* raise error condition */
495
496 TabWin32Handles[hHandle16].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
497 /* OK, done */
498
499 return (NO_ERROR);
500}
501
502
503/*****************************************************************************
504 * Name : DWORD HMHandleValidate
505 * Purpose : validate a handle through the translation table
506 * Parameters: ULONG hHandle16 - the handle to be verified
507 * Variables :
508 * Result : API returncode
509 * Remark :
510 * Status :
511 *
512 * Author : Patrick Haller [Wed, 1998/02/11 20:44]
513 *****************************************************************************/
514
515DWORD HMHandleValidate (ULONG hHandle16)
516{
517#ifdef DEBUG_LOCAL
518 dprintf(("KERNEL32: HMHandleValidate (%08xh)\n",
519 hHandle16));
520#endif
521
522 if (hHandle16 >= MAX_OS2_HMHANDLES) /* check boundary */
523 return (ERROR_INVALID_HANDLE); /* raise error condition */
524
525 if (TabWin32Handles[hHandle16].hmHandleData.hHMHandle == INVALID_HANDLE_VALUE)
526 /* valid ? */
527 return (ERROR_INVALID_HANDLE); /* raise error condition */
528
529 return (NO_ERROR);
530}
531
532
533/*****************************************************************************
534 * Name : DWORD HMHandleTranslateToWin
535 * Purpose : translate a 32-bit OS/2 handle to the associated windows handle
536 * Parameters: ULONG hHandle32 - the OS/2 handle
537 * PULONG phHandle16 - the associated windows handle
538 * Variables :
539 * Result : API returncode
540 * Remark :
541 * Status :
542 *
543 * Author : Patrick Haller [Wed, 1998/02/11 20:44]
544 *****************************************************************************/
545
546DWORD HMHandleTranslateToWin (ULONG hHandleOS2,
547 PULONG phHandle16)
548{
549 ULONG rc; /* API returncode */
550 register ULONG ulIndex; /* index counter over the table */
551
552#ifdef DEBUG_LOCAL
553 dprintf(("KERNEL32: HMHandleTranslateToWin (%08xh, %08xh)\n",
554 hHandleOS2,
555 phHandle16));
556#endif
557
558 for (ulIndex = 1;
559 ulIndex < MAX_OS2_HMHANDLES;
560 ulIndex++)
561 {
562 /* look for the handle */
563 if (TabWin32Handles[ulIndex].hmHandleData.hHMHandle == hHandleOS2)
564 {
565 *phHandle16 = ulIndex; /* deliver result */
566 return (NO_ERROR); /* OK */
567 }
568 }
569
570 return (ERROR_INVALID_HANDLE); /* raise error condition */
571}
572
573
574/*****************************************************************************
575 * Name : DWORD HMHandleTranslateToOS2
576 * Purpose : translate a 16-bit Win32 handle to the associated OS/2 handle
577 * Parameters: ULONG hHandle16 - the windows handle
578 * PULONG phHandle32 - the associated OS/2 handle
579 * Variables :
580 * Result : API returncode
581 * Remark :
582 * Status :
583 *
584 * Author : Patrick Haller [Wed, 1998/02/11 20:44]
585 *****************************************************************************/
586
587DWORD HMHandleTranslateToOS2 (ULONG hHandle16,
588 PULONG phHandleOS2)
589{
590#ifdef DEBUG_LOCAL
591 dprintf(("KERNEL32: HMHandleTranslateToOS2 (%08xh, %08xh)\n",
592 hHandle16,
593 phHandleOS2));
594#endif
595
596 if (HMHandleValidate(hHandle16) == NO_ERROR) /* verify handle */
597 {
598 *phHandleOS2 = TabWin32Handles[hHandle16].hmHandleData.hHMHandle;
599 return (NO_ERROR);
600 }
601
602 return (ERROR_INVALID_HANDLE); /* raise error condition */
603}
604
605
606/*****************************************************************************
607 * Name : DWORD HMHandleTranslateToOS2i
608 * Purpose : translate a 16-bit Win32 handle to the associated OS/2 handle
609 * Parameters: ULONG hHandle16 - the windows handle
610 * Variables :
611 * Result : OS/2 handle
612 * Remark : no checkinf
613 * Status :
614 *
615 * Author : Patrick Haller [Wed, 1998/02/11 20:44]
616 *****************************************************************************/
617
618DWORD HMHandleTranslateToOS2i (ULONG hHandle16)
619{
620#ifdef DEBUG_LOCAL
621 dprintf(("KERNEL32: HMHandleTranslateToOS2i (%08xh)\n",
622 hHandle16));
623#endif
624
625 return(TabWin32Handles[hHandle16].hmHandleData.hHMHandle);
626}
627
628
629
630/*****************************************************************************
631 * Name : HANDLE _HMGetStdHandle
632 * Purpose : replacement for Open32's GetStdHandle function
633 * Parameters: DWORD nStdHandle
634 * Variables :
635 * Result : HANDLE to standard device
636 * Remark :
637 * Status :
638 *
639 * Author : Patrick Haller [Wed, 1998/02/12 20:44]
640 *****************************************************************************/
641
642HANDLE HMGetStdHandle(DWORD nStdHandle)
643{
644 switch (nStdHandle)
645 {
646 case STD_INPUT_HANDLE: return (HMGlobals.hStandardIn);
647 case STD_OUTPUT_HANDLE: return (HMGlobals.hStandardOut);
648 case STD_ERROR_HANDLE: return (HMGlobals.hStandardError);
649
650 default:
651 {
652 SetLastError(ERROR_INVALID_PARAMETER); /* set error information */
653 return (INVALID_HANDLE_VALUE); /* raise error condition */
654 }
655 }
656}
657
658
659/*****************************************************************************
660 * Name : HANDLE _HMSetStdHandle
661 * Purpose : replacement for Open32's SetStdHandle function
662 * Parameters: DWORD nStdHandle
663 * HANDLE hHandle
664 * Variables :
665 * Result : BOOL fSuccess
666 * Remark :
667 * Status :
668 *
669 * Author : Patrick Haller [Wed, 1998/02/12 20:44]
670 *****************************************************************************/
671
672BOOL HMSetStdHandle(DWORD nStdHandle,
673 HANDLE hHandle)
674{
675 switch (nStdHandle)
676 {
677 case STD_INPUT_HANDLE: HMGlobals.hStandardIn = hHandle; return TRUE;
678 case STD_OUTPUT_HANDLE: HMGlobals.hStandardOut = hHandle; return TRUE;
679 case STD_ERROR_HANDLE: HMGlobals.hStandardError = hHandle; return TRUE;
680
681 default:
682 {
683 SetLastError(ERROR_INVALID_PARAMETER); /* set error information */
684 return (FALSE); /* raise error condition */
685 }
686 }
687}
688
689
690/*****************************************************************************
691 * Name : HANDLE HMDuplicateHandle
692 * Purpose : replacement for Open32's HMDuplicateHandle function
693 * Parameters:
694 *
695 * Variables :
696 * Result : BOOL fSuccess
697 * Remark :
698 * Status :
699 *
700 * Author : Sander van Leeuwen [Wed, 1999/08/25 15:44]
701 *****************************************************************************/
702
703BOOL HMDuplicateHandle(HANDLE srcprocess,
704 HANDLE srchandle,
705 HANDLE destprocess,
706 PHANDLE desthandle,
707 DWORD fdwAccess,
708 BOOL fInherit,
709 DWORD fdwOptions,
710 DWORD fdwOdinOptions)
711{
712 int iIndex; /* index into the handle table */
713 int iIndexNew; /* index into the handle table */
714 HMDeviceHandler *pDeviceHandler; /* device handler for this handle */
715 PHMHANDLEDATA pHMHandleData;
716 BOOL rc; /* API return code */
717
718 if(HMHandleValidate(srchandle) != NO_ERROR)
719 {
720 dprintf(("KERNEL32: HMDuplicateHandle: invalid handle %x", srchandle));
721 SetLastError(ERROR_INVALID_HANDLE); /* use this as error message */
722 return FALSE;
723 }
724
725 pDeviceHandler = TabWin32Handles[srchandle].pDeviceHandler; /* device is predefined */
726 iIndexNew = _HMHandleGetFree(); /* get free handle */
727 if (-1 == iIndexNew) /* oops, no free handles ! */
728 {
729 SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
730 return FALSE; /* signal error */
731 }
732
733 /* initialize the complete HMHANDLEDATA structure */
734 pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
735 pHMHandleData->dwType = TabWin32Handles[srchandle].hmHandleData.dwType;
736 if (fdwOptions & DUPLICATE_SAME_ACCESS)
737 pHMHandleData->dwAccess = TabWin32Handles[srchandle].hmHandleData.dwAccess;
738 else
739 pHMHandleData->dwAccess = fdwAccess;
740
741 if(fdwOdinOptions & DUPLICATE_ACCESS_READWRITE) {
742 pHMHandleData->dwAccess = GENERIC_READ | GENERIC_WRITE;
743 }
744 else
745 if(fdwOdinOptions & DUPLICATE_ACCESS_READ) {
746 pHMHandleData->dwAccess = GENERIC_READ;
747 }
748
749 if(fdwOdinOptions & DUPLICATE_SHARE_READ) {
750 pHMHandleData->dwShare = FILE_SHARE_READ;
751 }
752 else
753 if(fdwOdinOptions & DUPLICATE_SHARE_DENYNONE) {
754 pHMHandleData->dwShare = FILE_SHARE_READ | FILE_SHARE_WRITE;
755 }
756 else pHMHandleData->dwShare = TabWin32Handles[srchandle].hmHandleData.dwShare;
757
758 pHMHandleData->dwCreation = TabWin32Handles[srchandle].hmHandleData.dwCreation;
759 pHMHandleData->dwFlags = TabWin32Handles[srchandle].hmHandleData.dwFlags;
760 pHMHandleData->lpHandlerData = TabWin32Handles[srchandle].hmHandleData.lpHandlerData;
761
762
763 /* we've got to mark the handle as occupied here, since another device */
764 /* could be created within the device handler -> deadlock */
765
766 /* write appropriate entry into the handle table if open succeeded */
767 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
768 TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
769
770 /* call the device handler */
771 rc = pDeviceHandler->DuplicateHandle(&TabWin32Handles[iIndexNew].hmHandleData,
772 srcprocess,
773 &TabWin32Handles[srchandle].hmHandleData,
774 destprocess,
775 desthandle,
776 fdwAccess,
777 fInherit,
778 fdwOptions & ~DUPLICATE_CLOSE_SOURCE,
779 fdwOdinOptions);
780
781 //Don't let Open32 close it for us, but do it manually (regardless of error; see SDK docs))
782 if (fdwOptions & DUPLICATE_CLOSE_SOURCE)
783 HMCloseHandle(srchandle);
784
785 if(rc == FALSE) /* oops, creation failed within the device handler */
786 {
787 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
788 return FALSE; /* signal error */
789 }
790 else
791 SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
792
793 *desthandle = iIndexNew;
794 return TRUE; /* return valid handle */
795}
796
797/*****************************************************************************
798 * Name : HANDLE HMCreateFile
799 * Purpose : Wrapper for the CreateFile() API
800 * Parameters:
801 * Variables :
802 * Result :
803 * Remark : Fix parameters passed to the HMDeviceManager::CreateFile
804 * Supply access mode and share mode validation routines
805 * Status :
806 *
807 * Author : Patrick Haller [Wed, 1998/02/11 20:44]
808 *****************************************************************************/
809
810HFILE HMCreateFile(LPCSTR lpFileName,
811 DWORD dwDesiredAccess,
812 DWORD dwShareMode,
813 LPSECURITY_ATTRIBUTES lpSecurityAttributes,
814 DWORD dwCreationDisposition,
815 DWORD dwFlagsAndAttributes,
816 HANDLE hTemplateFile)
817{
818 int iIndex; /* index into the handle table */
819 int iIndexNew; /* index into the handle table */
820 HMDeviceHandler *pDeviceHandler; /* device handler for this handle */
821 HANDLE hResult;
822 DWORD rc; /* API return code */
823 PHMHANDLEDATA pHMHandleData;
824 HMHANDLEDATA HMHandleTemp; /* temporary buffer for handle data */
825
826 /* create new handle by either lpFileName or hTemplateFile */
827 if (lpFileName == NULL) /* this indicates creation from template */
828 {
829 iIndex = _HMHandleQuery(hTemplateFile); /* query table for template */
830 if (-1 == iIndex) /* this device is unknown to us */
831 {
832 SetLastError (ERROR_INVALID_HANDLE);
833 return INVALID_HANDLE_VALUE;
834 }
835 else
836 {
837 /* to pass to handler */
838 pHMHandleData = &TabWin32Handles[iIndex].hmHandleData;
839 pDeviceHandler = TabWin32Handles[iIndex].pDeviceHandler;
840 }
841 }
842 else
843 {
844 pDeviceHandler = _HMDeviceFind((LPSTR)lpFileName); /* find device */
845
846 if (NULL == pDeviceHandler) /* this name is unknown to us */
847 {
848 SetLastError(ERROR_FILE_NOT_FOUND);
849 return (INVALID_HANDLE_VALUE); /* signal error */
850 }
851 else
852 pHMHandleData = NULL;
853
854 if(pDeviceHandler == HMGlobals.pHMOpen32) {
855 pDeviceHandler = HMGlobals.pHMFile;
856 }
857 }
858
859
860 iIndexNew = _HMHandleGetFree(); /* get free handle */
861 if (-1 == iIndexNew) /* oops, no free handles ! */
862 {
863 SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
864 return (INVALID_HANDLE_VALUE); /* signal error */
865 }
866
867
868 /* initialize the complete HMHANDLEDATA structure */
869 if (lpFileName == NULL) /* create from template */
870 memcpy (&HMHandleTemp,
871 &TabWin32Handles[iIndex].hmHandleData,
872 sizeof(HMHANDLEDATA));
873 else
874 {
875 HMHandleTemp.dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
876 HMHandleTemp.dwAccess = dwDesiredAccess;
877 HMHandleTemp.dwShare = dwShareMode;
878 HMHandleTemp.dwCreation = dwCreationDisposition;
879 HMHandleTemp.dwFlags = dwFlagsAndAttributes;
880 HMHandleTemp.lpHandlerData = NULL;
881 }
882
883 /* we've got to mark the handle as occupied here, since another device */
884 /* could be created within the device handler -> deadlock */
885
886 /* write appropriate entry into the handle table if open succeeded */
887 HMHandleTemp.hHMHandle = iIndexNew;
888 TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
889
890 /* now copy back our temporary handle data */
891 memcpy(&TabWin32Handles[iIndexNew].hmHandleData,
892 &HMHandleTemp,
893 sizeof(HMHANDLEDATA));
894
895 rc = pDeviceHandler->CreateFile(lpFileName, /* call the device handler */
896 &HMHandleTemp,
897 lpSecurityAttributes,
898 pHMHandleData);
899
900#ifdef DEBUG_LOCAL
901 dprintf(("KERNEL32/HandleManager:CheckPoint2: %s lpHandlerData=%08xh\n",
902 lpFileName,
903 HMHandleTemp.lpHandlerData));
904#endif
905
906 if (rc != NO_ERROR) /* oops, creation failed within the device handler */
907 {
908 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
909 SetLastError(rc); /* Hehe, OS/2 and NT are pretty compatible :) */
910 return (INVALID_HANDLE_VALUE); /* signal error */
911 }
912 else
913 {
914 SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
915
916 /* copy data fields that might have been modified by CreateFile */
917 memcpy(&TabWin32Handles[iIndexNew].hmHandleData,
918 &HMHandleTemp,
919 sizeof(HMHANDLEDATA));
920 }
921
922
923#ifdef DEBUG_LOCAL
924 dprintf(("KERNEL32/HandleManager: CreateFile(%s)=%08xh\n",
925 lpFileName,
926 iIndexNew));
927#endif
928
929 return (HFILE)iIndexNew; /* return valid handle */
930}
931
932
933/*****************************************************************************
934 * Name : HANDLE HMOpenFile
935 * Purpose : Wrapper for the OpenFile() API
936 * Parameters:
937 * Variables :
938 * Result :
939 * Remark : Fix parameters passed to the HMDeviceManager::OpenFile
940 * Supply access mode and share mode validation routines
941 * Status :
942 *
943 * Author : Patrick Haller [Wed, 1998/02/11 20:44]
944 *****************************************************************************/
945
946
947/***********************************************************************
948 * FILE_ConvertOFMode
949 *
950 * Convert OF_* mode into flags for CreateFile.
951 */
952static void FILE_ConvertOFMode( INT mode, DWORD *access, DWORD *sharing )
953{
954 switch(mode & 0x03)
955 {
956 case OF_READ: *access = GENERIC_READ; break;
957 case OF_WRITE: *access = GENERIC_WRITE; break;
958 case OF_READWRITE: *access = GENERIC_READ | GENERIC_WRITE; break;
959 default: *access = 0; break;
960 }
961 switch(mode & 0x70)
962 {
963 case OF_SHARE_EXCLUSIVE: *sharing = 0; break;
964 case OF_SHARE_DENY_WRITE: *sharing = FILE_SHARE_READ; break;
965 case OF_SHARE_DENY_READ: *sharing = FILE_SHARE_WRITE; break;
966 case OF_SHARE_DENY_NONE:
967 case OF_SHARE_COMPAT:
968 default: *sharing = FILE_SHARE_READ | FILE_SHARE_WRITE; break;
969 }
970}
971
972HANDLE HMOpenFile(LPCSTR lpFileName,
973 OFSTRUCT* pOFStruct,
974 UINT fuMode)
975{
976 int iIndex; /* index into the handle table */
977 int iIndexNew; /* index into the handle table */
978 HMDeviceHandler *pDeviceHandler; /* device handler for this handle */
979 PHMHANDLEDATA pHMHandleData;
980 DWORD rc; /* API return code */
981
982
983 pDeviceHandler = _HMDeviceFind((LPSTR)lpFileName); /* find device */
984 if (NULL == pDeviceHandler) /* this name is unknown to us */
985 {
986 SetLastError(ERROR_FILE_NOT_FOUND);
987 return (INVALID_HANDLE_VALUE); /* signal error */
988 }
989 else
990 pHMHandleData = NULL;
991
992 if(pDeviceHandler == HMGlobals.pHMOpen32) {
993 pDeviceHandler = HMGlobals.pHMFile;
994 }
995
996 iIndexNew = _HMHandleGetFree(); /* get free handle */
997 if (-1 == iIndexNew) /* oops, no free handles ! */
998 {
999 SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
1000 return (INVALID_HANDLE_VALUE); /* signal error */
1001 }
1002
1003
1004 /* initialize the complete HMHANDLEDATA structure */
1005 pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
1006 pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
1007
1008 FILE_ConvertOFMode(fuMode, /* map OF_flags */
1009 &pHMHandleData->dwAccess,
1010 &pHMHandleData->dwShare);
1011
1012 pHMHandleData->dwCreation = 0;
1013 pHMHandleData->dwFlags = 0;
1014 pHMHandleData->lpHandlerData = NULL;
1015
1016
1017 /* we've got to mark the handle as occupied here, since another device */
1018 /* could be created within the device handler -> deadlock */
1019
1020 /* write appropriate entry into the handle table if open succeeded */
1021 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
1022 TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
1023
1024 rc = pDeviceHandler->OpenFile (lpFileName, /* call the device handler */
1025 &TabWin32Handles[iIndexNew].hmHandleData,
1026 pOFStruct,
1027 fuMode);
1028
1029#ifdef DEBUG_LOCAL
1030 dprintf(("KERNEL32/HandleManager:CheckPoint3: %s lpHandlerData=%08xh rc=%08xh\n",
1031 lpFileName,
1032 &TabWin32Handles[iIndexNew].hmHandleData.lpHandlerData,
1033 rc));
1034#endif
1035
1036 if(rc != NO_ERROR) /* oops, creation failed within the device handler */
1037 {
1038 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
1039 SetLastError(pOFStruct->nErrCode);
1040 return (INVALID_HANDLE_VALUE); /* signal error */
1041 }
1042 else {
1043 if(fuMode & (OF_DELETE|OF_EXIST)) {
1044 //file handle already closed
1045 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
1046 return TRUE; //TODO: correct?
1047 }
1048 if(fuMode & OF_PARSE) {
1049 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
1050 return 0;
1051 }
1052 if(fuMode & OF_VERIFY) {
1053 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
1054 return 1; //TODO: correct?
1055 }
1056 }
1057
1058#ifdef DEBUG_LOCAL
1059 dprintf(("KERNEL32/HandleManager: OpenFile(%s)=%08xh\n",
1060 lpFileName,
1061 hResult));
1062#endif
1063
1064 return iIndexNew; /* return valid handle */
1065}
1066
1067
1068
1069/*****************************************************************************
1070 * Name : HANDLE HMCloseFile
1071 * Purpose : Wrapper for the CloseHandle() API
1072 * Parameters:
1073 * Variables :
1074 * Result :
1075 * Remark :
1076 * Status :
1077 *
1078 * Author : Patrick Haller [Wed, 1998/02/11 20:44]
1079 *****************************************************************************/
1080
1081BOOL HMCloseHandle(HANDLE hObject)
1082{
1083 int iIndex; /* index into the handle table */
1084 BOOL fResult; /* result from the device handler's CloseHandle() */
1085 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1086
1087 /* validate handle */
1088 iIndex = _HMHandleQuery(hObject); /* get the index */
1089 if (-1 == iIndex) /* error ? */
1090 {
1091 //@@@PH it may occur someone closes e.g. a semaphore handle
1092 // which is not registered through the HandleManager yet.
1093 // so we try to pass on to Open32 instead.
1094 dprintf(("KERNEL32: HandleManager:HMCloseHandle(%08xh) passed on to Open32.\n",
1095 hObject));
1096
1097 fResult = O32_CloseHandle(hObject);
1098 return (fResult);
1099
1100 //SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1101 //return (FALSE); /* signal failure */
1102 }
1103
1104 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1105 //SvL: Check if pDeviceHandler is set
1106 if (pHMHandle->pDeviceHandler)
1107 {
1108 fResult = pHMHandle->pDeviceHandler->CloseHandle(&pHMHandle->hmHandleData);
1109 }
1110 else
1111 {
1112 dprintf(("HMCloseHAndle(%08xh): pDeviceHandler not set", hObject));
1113 fResult = TRUE;
1114 }
1115
1116 if (fResult == TRUE) /* remove handle if close succeeded */
1117 {
1118 pHMHandle->hmHandleData.hHMHandle = INVALID_HANDLE_VALUE; /* mark handle as free */
1119 SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
1120 }
1121
1122 return (fResult); /* deliver return code */
1123}
1124
1125
1126/*****************************************************************************
1127 * Name : HANDLE HMReadFile
1128 * Purpose : Wrapper for the ReadHandle() API
1129 * Parameters:
1130 * Variables :
1131 * Result :
1132 * Remark :
1133 * Status :
1134 *
1135 * Author : Patrick Haller [Wed, 1998/02/11 20:44]
1136 *****************************************************************************/
1137
1138BOOL HMReadFile(HANDLE hFile,
1139 LPVOID lpBuffer,
1140 DWORD nNumberOfBytesToRead,
1141 LPDWORD lpNumberOfBytesRead,
1142 LPOVERLAPPED lpOverlapped)
1143{
1144 int iIndex; /* index into the handle table */
1145 BOOL fResult; /* result from the device handler's CloseHandle() */
1146 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1147
1148 /* validate handle */
1149 iIndex = _HMHandleQuery(hFile); /* get the index */
1150 if (-1 == iIndex) /* error ? */
1151 {
1152 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1153 return (FALSE); /* signal failure */
1154 }
1155
1156 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1157 fResult = pHMHandle->pDeviceHandler->ReadFile(&pHMHandle->hmHandleData,
1158 lpBuffer,
1159 nNumberOfBytesToRead,
1160 lpNumberOfBytesRead,
1161 lpOverlapped);
1162
1163 return (fResult); /* deliver return code */
1164}
1165/*****************************************************************************
1166 * Name : HANDLE HMReadFileEx
1167 * Purpose : Wrapper for the ReadFileEx() API
1168 * Parameters:
1169 * Variables :
1170 * Result :
1171 * Remark :
1172 * Status :
1173 *
1174 * Author : SvL
1175 *****************************************************************************/
1176BOOL HMReadFileEx(HANDLE hFile,
1177 LPVOID lpBuffer,
1178 DWORD nNumberOfBytesToRead,
1179 LPOVERLAPPED lpOverlapped,
1180 LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
1181{
1182 int iIndex; /* index into the handle table */
1183 BOOL fResult; /* result from the device handler's CloseHandle() */
1184 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1185
1186 /* validate handle */
1187 iIndex = _HMHandleQuery(hFile); /* get the index */
1188 if (-1 == iIndex) /* error ? */
1189 {
1190 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1191 return (FALSE); /* signal failure */
1192 }
1193
1194 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1195 fResult = pHMHandle->pDeviceHandler->ReadFileEx(&pHMHandle->hmHandleData,
1196 lpBuffer,
1197 nNumberOfBytesToRead,
1198 lpOverlapped,
1199 lpCompletionRoutine);
1200
1201 return (fResult); /* deliver return code */
1202}
1203
1204/*****************************************************************************
1205 * Name : HANDLE HMWriteFile
1206 * Purpose : Wrapper for the WriteHandle() API
1207 * Parameters:
1208 * Variables :
1209 * Result :
1210 * Remark :
1211 * Status :
1212 *
1213 * Author : Patrick Haller [Wed, 1998/02/11 20:44]
1214 *****************************************************************************/
1215
1216BOOL HMWriteFile(HANDLE hFile,
1217 LPCVOID lpBuffer,
1218 DWORD nNumberOfBytesToWrite,
1219 LPDWORD lpNumberOfBytesWritten,
1220 LPOVERLAPPED lpOverlapped)
1221{
1222 int iIndex; /* index into the handle table */
1223 BOOL fResult; /* result from the device handler's CloseHandle() */
1224 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1225
1226 /* validate handle */
1227 iIndex = _HMHandleQuery(hFile); /* get the index */
1228 if (-1 == iIndex) /* error ? */
1229 {
1230 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1231 return (FALSE); /* signal failure */
1232 }
1233
1234 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1235 fResult = pHMHandle->pDeviceHandler->WriteFile(&pHMHandle->hmHandleData,
1236 lpBuffer,
1237 nNumberOfBytesToWrite,
1238 lpNumberOfBytesWritten,
1239 lpOverlapped);
1240
1241 return (fResult); /* deliver return code */
1242}
1243
1244/*****************************************************************************
1245 * Name : HANDLE HMWriteFileEx
1246 * Purpose : Wrapper for the WriteFileEx() API
1247 * Parameters:
1248 * Variables :
1249 * Result :
1250 * Remark :
1251 * Status :
1252 *
1253 * Author : SvL
1254 *****************************************************************************/
1255BOOL HMWriteFileEx(HANDLE hFile,
1256 LPVOID lpBuffer,
1257 DWORD nNumberOfBytesToWrite,
1258 LPOVERLAPPED lpOverlapped,
1259 LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
1260{
1261 int iIndex; /* index into the handle table */
1262 BOOL fResult; /* result from the device handler's CloseHandle() */
1263 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1264
1265 /* validate handle */
1266 iIndex = _HMHandleQuery(hFile); /* get the index */
1267 if (-1 == iIndex) /* error ? */
1268 {
1269 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1270 return (FALSE); /* signal failure */
1271 }
1272
1273 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1274 fResult = pHMHandle->pDeviceHandler->WriteFileEx(&pHMHandle->hmHandleData,
1275 lpBuffer,
1276 nNumberOfBytesToWrite,
1277 lpOverlapped,
1278 lpCompletionRoutine);
1279
1280 return (fResult); /* deliver return code */
1281}
1282
1283
1284/*****************************************************************************
1285 * Name : HANDLE HMGetFileType
1286 * Purpose : Wrapper for the GetFileType() API
1287 * Parameters:
1288 * Variables :
1289 * Result :
1290 * Remark :
1291 * Status :
1292 *
1293 * Author : Patrick Haller [Wed, 1998/02/12 13:37]
1294 *****************************************************************************/
1295
1296DWORD HMGetFileType(HANDLE hFile)
1297{
1298 int iIndex; /* index into the handle table */
1299 DWORD dwResult; /* result from the device handler's API */
1300 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1301
1302 /* validate handle */
1303 iIndex = _HMHandleQuery(hFile); /* get the index */
1304 if (-1 == iIndex) /* error ? */
1305 {
1306 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1307 return FILE_TYPE_UNKNOWN; /* signal failure */
1308 }
1309
1310 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1311 dwResult = pHMHandle->pDeviceHandler->GetFileType(&pHMHandle->hmHandleData);
1312
1313 return (dwResult); /* deliver return code */
1314}
1315
1316
1317/*****************************************************************************
1318 * Name : HMDeviceHandler::_DeviceReuqest
1319 * Purpose : entry method for special request functions
1320 * Parameters: ULONG ulRequestCode
1321 * various parameters as required
1322 * Variables :
1323 * Result :
1324 * Remark : the standard behaviour is to return an error code for non-
1325 * existant request codes
1326 * Status :
1327 *
1328 * Author : Patrick Haller [Wed, 1998/02/11 20:44]
1329 *****************************************************************************/
1330
1331DWORD HMDeviceRequest (HANDLE hFile,
1332 ULONG ulRequestCode,
1333 ULONG arg1,
1334 ULONG arg2,
1335 ULONG arg3,
1336 ULONG arg4)
1337{
1338 int iIndex; /* index into the handle table */
1339 DWORD dwResult; /* result from the device handler's API */
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 (INVALID_HANDLE_ERROR); /* signal failure */
1348 }
1349
1350 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1351 dwResult = pHMHandle->pDeviceHandler->_DeviceRequest(&pHMHandle->hmHandleData,
1352 ulRequestCode,
1353 arg1,
1354 arg2,
1355 arg3,
1356 arg4);
1357
1358 return (dwResult); /* deliver return code */
1359}
1360
1361
1362/*****************************************************************************
1363 * Name : HMDeviceHandler::GetFileInformationByHandle
1364 * Purpose : router function for GetFileInformationByHandle
1365 * Parameters:
1366 * Variables :
1367 * Result :
1368 * Remark :
1369 * Status :
1370 *
1371 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
1372 *****************************************************************************/
1373
1374BOOL HMGetFileInformationByHandle (HANDLE hFile,
1375 BY_HANDLE_FILE_INFORMATION *pHFI)
1376{
1377 int iIndex; /* index into the handle table */
1378 DWORD dwResult; /* result from the device handler's API */
1379 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1380
1381 /* validate handle */
1382 iIndex = _HMHandleQuery(hFile); /* get the index */
1383 if (-1 == iIndex) /* error ? */
1384 {
1385 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1386 return FALSE; /* signal failure */
1387 }
1388
1389 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1390 dwResult = pHMHandle->pDeviceHandler->GetFileInformationByHandle(&pHMHandle->hmHandleData,
1391 pHFI);
1392
1393 return (dwResult); /* deliver return code */
1394}
1395
1396
1397/*****************************************************************************
1398 * Name : HMDeviceHandler::SetEndOfFile
1399 * Purpose : router function for SetEndOfFile
1400 * Parameters:
1401 * Variables :
1402 * Result :
1403 * Remark :
1404 * Status :
1405 *
1406 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
1407 *****************************************************************************/
1408
1409BOOL HMSetEndOfFile (HANDLE hFile)
1410{
1411 int iIndex; /* index into the handle table */
1412 BOOL bResult; /* result from the device handler's API */
1413 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1414
1415 /* validate handle */
1416 iIndex = _HMHandleQuery(hFile); /* get the index */
1417 if (-1 == iIndex) /* error ? */
1418 {
1419 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1420 return FALSE; /* signal failure */
1421 }
1422
1423 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1424 bResult = pHMHandle->pDeviceHandler->SetEndOfFile(&pHMHandle->hmHandleData);
1425
1426 return (bResult); /* deliver return code */
1427}
1428
1429
1430/*****************************************************************************
1431 * Name : HMDeviceHandler::SetFileTime
1432 * Purpose : router function for SetFileTime
1433 * Parameters:
1434 * Variables :
1435 * Result :
1436 * Remark :
1437 * Status :
1438 *
1439 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
1440 *****************************************************************************/
1441
1442BOOL HMSetFileTime (HANDLE hFile,
1443 const FILETIME *pFT1,
1444 const FILETIME *pFT2,
1445 const FILETIME *pFT3)
1446{
1447 int iIndex; /* index into the handle table */
1448 BOOL bResult; /* result from the device handler's API */
1449 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1450
1451 /* validate handle */
1452 iIndex = _HMHandleQuery(hFile); /* get the index */
1453 if (-1 == iIndex) /* error ? */
1454 {
1455 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1456 return FALSE; /* signal failure */
1457 }
1458
1459 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1460 bResult = pHMHandle->pDeviceHandler->SetFileTime(&pHMHandle->hmHandleData,
1461 (LPFILETIME)pFT1,
1462 (LPFILETIME)pFT2,
1463 (LPFILETIME)pFT3);
1464
1465 return (bResult); /* deliver return code */
1466}
1467
1468/*****************************************************************************
1469 * Name : HMDeviceHandler::GetFileTime
1470 * Purpose : router function for SetFileTime
1471 * Parameters:
1472 * Variables :
1473 * Result :
1474 * Remark :
1475 * Status :
1476 *
1477 * Author : SvL
1478 *****************************************************************************/
1479
1480BOOL HMGetFileTime (HANDLE hFile,
1481 const FILETIME *pFT1,
1482 const FILETIME *pFT2,
1483 const FILETIME *pFT3)
1484{
1485 int iIndex; /* index into the handle table */
1486 BOOL bResult; /* result from the device handler's API */
1487 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1488
1489 /* validate handle */
1490 iIndex = _HMHandleQuery(hFile); /* get the index */
1491 if (-1 == iIndex) /* error ? */
1492 {
1493 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1494 return FALSE; /* signal failure */
1495 }
1496
1497 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1498 bResult = pHMHandle->pDeviceHandler->GetFileTime(&pHMHandle->hmHandleData,
1499 (LPFILETIME)pFT1,
1500 (LPFILETIME)pFT2,
1501 (LPFILETIME)pFT3);
1502
1503 return (bResult); /* deliver return code */
1504}
1505
1506
1507/*****************************************************************************
1508 * Name : HMDeviceHandler::GetFileSize
1509 * Purpose : router function for GetFileSize
1510 * Parameters:
1511 * Variables :
1512 * Result :
1513 * Remark :
1514 * Status :
1515 *
1516 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
1517 *****************************************************************************/
1518
1519DWORD HMGetFileSize (HANDLE hFile,
1520 PDWORD pSize)
1521{
1522 int iIndex; /* index into the handle table */
1523 DWORD dwResult; /* result from the device handler's API */
1524 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1525
1526 /* validate handle */
1527 iIndex = _HMHandleQuery(hFile); /* get the index */
1528 if (-1 == iIndex) /* error ? */
1529 {
1530 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1531 return (INVALID_HANDLE_ERROR); /* signal failure */
1532 }
1533
1534 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1535 dwResult = pHMHandle->pDeviceHandler->GetFileSize(&pHMHandle->hmHandleData,
1536 pSize);
1537
1538 return (dwResult); /* deliver return code */
1539}
1540
1541
1542/*****************************************************************************
1543 * Name : HMDeviceHandler::SetFilePointer
1544 * Purpose : router function for SetFilePointer
1545 * Parameters:
1546 * Variables :
1547 * Result :
1548 * Remark :
1549 * Status :
1550 *
1551 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
1552 *****************************************************************************/
1553
1554DWORD HMSetFilePointer (HANDLE hFile,
1555 LONG lDistanceToMove,
1556 PLONG lpDistanceToMoveHigh,
1557 DWORD dwMoveMethod)
1558{
1559 int iIndex; /* index into the handle table */
1560 DWORD dwResult; /* result from the device handler's API */
1561 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1562
1563 /* validate handle */
1564 iIndex = _HMHandleQuery(hFile); /* get the index */
1565 if (-1 == iIndex) /* error ? */
1566 {
1567 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1568 return (INVALID_HANDLE_ERROR); /* signal failure */
1569 }
1570
1571 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1572 dwResult = pHMHandle->pDeviceHandler->SetFilePointer(&pHMHandle->hmHandleData,
1573 lDistanceToMove,
1574 lpDistanceToMoveHigh,
1575 dwMoveMethod);
1576
1577 return (dwResult); /* deliver return code */
1578}
1579
1580
1581/*****************************************************************************
1582 * Name : HMDeviceHandler::LockFile
1583 * Purpose : router function for LockFile
1584 * Parameters:
1585 * Variables :
1586 * Result :
1587 * Remark :
1588 * Status :
1589 *
1590 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
1591 *****************************************************************************/
1592
1593BOOL HMLockFile (HFILE hFile,
1594 DWORD arg2,
1595 DWORD arg3,
1596 DWORD arg4,
1597 DWORD arg5)
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 FALSE; /* signal failure */
1609 }
1610
1611 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1612 dwResult = pHMHandle->pDeviceHandler->LockFile(&pHMHandle->hmHandleData,
1613 arg2,
1614 arg3,
1615 arg4,
1616 arg5);
1617
1618 return (dwResult); /* deliver return code */
1619}
1620
1621
1622/*****************************************************************************
1623 * Name : HMDeviceHandler::LockFileEx
1624 * Purpose : router function for LockFileEx
1625 * Parameters:
1626 * Variables :
1627 * Result :
1628 * Remark :
1629 * Status :
1630 *
1631 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
1632 *****************************************************************************/
1633
1634BOOL HMLockFileEx(HANDLE hFile,
1635 DWORD dwFlags,
1636 DWORD dwReserved,
1637 DWORD nNumberOfBytesToLockLow,
1638 DWORD nNumberOfBytesToLockHigh,
1639 LPOVERLAPPED lpOverlapped)
1640{
1641 int iIndex; /* index into the handle table */
1642 DWORD dwResult; /* result from the device handler's API */
1643 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1644
1645 /* validate handle */
1646 iIndex = _HMHandleQuery(hFile); /* get the index */
1647 if (-1 == iIndex) /* error ? */
1648 {
1649 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1650 return FALSE; /* signal failure */
1651 }
1652
1653 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1654 dwResult = pHMHandle->pDeviceHandler->LockFileEx(&pHMHandle->hmHandleData,
1655 dwFlags,
1656 dwReserved,
1657 nNumberOfBytesToLockLow,
1658 nNumberOfBytesToLockHigh,
1659 lpOverlapped);
1660
1661 return (dwResult); /* deliver return code */
1662}
1663
1664
1665
1666/*****************************************************************************
1667 * Name : HMDeviceHandler::UnlockFile
1668 * Purpose : router function for UnlockFile
1669 * Parameters:
1670 * Variables :
1671 * Result :
1672 * Remark :
1673 * Status :
1674 *
1675 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
1676 *****************************************************************************/
1677
1678BOOL HMUnlockFile (HFILE hFile,
1679 DWORD arg2,
1680 DWORD arg3,
1681 DWORD arg4,
1682 DWORD arg5)
1683{
1684 int iIndex; /* index into the handle table */
1685 DWORD dwResult; /* result from the device handler's API */
1686 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1687
1688 /* validate handle */
1689 iIndex = _HMHandleQuery(hFile); /* get the index */
1690 if (-1 == iIndex) /* error ? */
1691 {
1692 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1693 return FALSE; /* signal failure */
1694 }
1695
1696 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1697 dwResult = pHMHandle->pDeviceHandler->UnlockFile(&pHMHandle->hmHandleData,
1698 arg2,
1699 arg3,
1700 arg4,
1701 arg5);
1702
1703 return (dwResult); /* deliver return code */
1704}
1705
1706
1707/*****************************************************************************
1708 * Name : HMDeviceHandler::UnlockFileEx
1709 * Purpose : router function for UnlockFileEx
1710 * Parameters:
1711 * Variables :
1712 * Result :
1713 * Remark :
1714 * Status :
1715 *
1716 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
1717 *****************************************************************************/
1718
1719BOOL HMUnlockFileEx(HANDLE hFile,
1720 DWORD dwReserved,
1721 DWORD nNumberOfBytesToLockLow,
1722 DWORD nNumberOfBytesToLockHigh,
1723 LPOVERLAPPED lpOverlapped)
1724{
1725 int iIndex; /* index into the handle table */
1726 DWORD dwResult; /* result from the device handler's API */
1727 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1728
1729 /* validate handle */
1730 iIndex = _HMHandleQuery(hFile); /* get the index */
1731 if (-1 == iIndex) /* error ? */
1732 {
1733 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1734 return FALSE; /* signal failure */
1735 }
1736
1737 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1738 dwResult = pHMHandle->pDeviceHandler->UnlockFileEx(&pHMHandle->hmHandleData,
1739 dwReserved,
1740 nNumberOfBytesToLockLow,
1741 nNumberOfBytesToLockHigh,
1742 lpOverlapped);
1743
1744 return (dwResult); /* deliver return code */
1745}
1746
1747
1748/*****************************************************************************
1749 * Name : HMDeviceHandler::WaitForSingleObject
1750 * Purpose : router function for WaitForSingleObject
1751 * Parameters:
1752 * Variables :
1753 * Result :
1754 * Remark :
1755 * Status :
1756 *
1757 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
1758 *****************************************************************************/
1759
1760DWORD HMWaitForSingleObject(HANDLE hObject,
1761 DWORD dwTimeout)
1762{
1763 int iIndex; /* index into the handle table */
1764 DWORD dwResult; /* result from the device handler's API */
1765 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1766
1767 /* validate handle */
1768 iIndex = _HMHandleQuery(hObject); /* get the index */
1769 if (-1 == iIndex) /* error ? */
1770 {
1771 dprintf(("KERNEL32: HandleManager:HMWaitForSingleObject(%08xh) passed on to Open32.\n",
1772 hObject));
1773
1774 // maybe handles from CreateProcess() ...
1775 dwResult = O32_WaitForSingleObject(hObject, dwTimeout);
1776 return (dwResult);
1777 }
1778
1779 // @@@PH Problem: wrong class (base class) is called instead of
1780 // open32 class ?! Why ?!
1781 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1782 dwResult = pHMHandle->pDeviceHandler->WaitForSingleObject(&pHMHandle->hmHandleData,
1783 dwTimeout);
1784
1785 return (dwResult); /* deliver return code */
1786}
1787
1788
1789/*****************************************************************************
1790 * Name : HMDeviceHandler::WaitForSingleObjectEx
1791 * Purpose : router function for WaitForSingleObjectEx
1792 * Parameters:
1793 * Variables :
1794 * Result :
1795 * Remark :
1796 * Status :
1797 *
1798 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
1799 *****************************************************************************/
1800
1801DWORD HMWaitForSingleObjectEx(HANDLE hObject,
1802 DWORD dwTimeout,
1803 BOOL fAlertable)
1804{
1805 int iIndex; /* index into the handle table */
1806 DWORD dwResult; /* result from the device handler's API */
1807 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1808
1809 /* validate handle */
1810 iIndex = _HMHandleQuery(hObject); /* get the index */
1811 if (-1 == iIndex) /* error ? */
1812 {
1813 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1814 return WAIT_FAILED; /* signal failure */
1815 }
1816
1817 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1818 dwResult = pHMHandle->pDeviceHandler->WaitForSingleObjectEx(&pHMHandle->hmHandleData,
1819 dwTimeout,
1820 fAlertable);
1821
1822 return (dwResult); /* deliver return code */
1823}
1824
1825
1826/*****************************************************************************
1827 * Name : HMDeviceHandler::FlushFileBuffers
1828 * Purpose : router function for FlushFileBuffers
1829 * Parameters:
1830 * Variables :
1831 * Result :
1832 * Remark :
1833 * Status :
1834 *
1835 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
1836 *****************************************************************************/
1837
1838BOOL HMFlushFileBuffers(HANDLE hFile)
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(hFile); /* get the index */
1846 if (-1 == iIndex) /* error ? */
1847 {
1848 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1849 return FALSE; /* signal failure */
1850 }
1851
1852 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1853 dwResult = pHMHandle->pDeviceHandler->FlushFileBuffers(&pHMHandle->hmHandleData);
1854
1855 return (dwResult); /* deliver return code */
1856}
1857
1858
1859/*****************************************************************************
1860 * Name : HMDeviceHandler::GetOverlappedResult
1861 * Purpose : router function for GetOverlappedResult
1862 * Parameters:
1863 * Variables :
1864 * Result :
1865 * Remark :
1866 * Status :
1867 *
1868 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
1869 *****************************************************************************/
1870
1871BOOL HMGetOverlappedResult(HANDLE hObject,
1872 LPOVERLAPPED lpOverlapped,
1873 LPDWORD arg3,
1874 BOOL arg4)
1875{
1876 int iIndex; /* index into the handle table */
1877 DWORD dwResult; /* result from the device handler's API */
1878 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1879
1880 /* validate handle */
1881 iIndex = _HMHandleQuery(hObject); /* get the index */
1882 if (-1 == iIndex) /* error ? */
1883 {
1884 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1885 return FALSE; /* signal failure */
1886 }
1887
1888 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1889 dwResult = pHMHandle->pDeviceHandler->GetOverlappedResult(&pHMHandle->hmHandleData,
1890 lpOverlapped,
1891 arg3,
1892 arg4);
1893
1894 return (dwResult); /* deliver return code */
1895}
1896
1897
1898/*****************************************************************************
1899 * Name : HMReleaseMutex
1900 * Purpose : router function for ReleaseMutex
1901 * Parameters:
1902 * Variables :
1903 * Result :
1904 * Remark :
1905 * Status :
1906 *
1907 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
1908 *****************************************************************************/
1909
1910BOOL HMReleaseMutex(HANDLE hObject)
1911{
1912 int iIndex; /* index into the handle table */
1913 DWORD dwResult; /* result from the device handler's API */
1914 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1915
1916 /* validate handle */
1917 iIndex = _HMHandleQuery(hObject); /* get the index */
1918 if (-1 == iIndex) /* error ? */
1919 {
1920 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1921 return FALSE; /* signal failure */
1922 }
1923
1924 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1925 dwResult = pHMHandle->pDeviceHandler->ReleaseMutex(&pHMHandle->hmHandleData);
1926
1927 return (dwResult); /* deliver return code */
1928}
1929
1930
1931/*****************************************************************************
1932 * Name : HMSetEvent
1933 * Purpose : router function for SetEvent
1934 * Parameters:
1935 * Variables :
1936 * Result :
1937 * Remark :
1938 * Status :
1939 *
1940 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
1941 *****************************************************************************/
1942
1943BOOL HMSetEvent(HANDLE hEvent)
1944{
1945 int iIndex; /* index into the handle table */
1946 DWORD dwResult; /* result from the device handler's API */
1947 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1948
1949 /* validate handle */
1950 iIndex = _HMHandleQuery(hEvent); /* get the index */
1951 if (-1 == iIndex) /* error ? */
1952 {
1953 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1954 return FALSE; /* signal failure */
1955 }
1956
1957 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1958 dwResult = pHMHandle->pDeviceHandler->SetEvent(&pHMHandle->hmHandleData);
1959
1960 return (dwResult); /* deliver return code */
1961}
1962
1963
1964/*****************************************************************************
1965 * Name : HMPulseEvent
1966 * Purpose : router function for PulseEvent
1967 * Parameters:
1968 * Variables :
1969 * Result :
1970 * Remark :
1971 * Status :
1972 *
1973 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
1974 *****************************************************************************/
1975
1976BOOL HMPulseEvent(HANDLE hEvent)
1977{
1978 int iIndex; /* index into the handle table */
1979 DWORD dwResult; /* result from the device handler's API */
1980 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
1981
1982 /* validate handle */
1983 iIndex = _HMHandleQuery(hEvent); /* get the index */
1984 if (-1 == iIndex) /* error ? */
1985 {
1986 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
1987 return FALSE; /* signal failure */
1988 }
1989
1990 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
1991 dwResult = pHMHandle->pDeviceHandler->PulseEvent(&pHMHandle->hmHandleData);
1992
1993 return (dwResult); /* deliver return code */
1994}
1995
1996
1997/*****************************************************************************
1998 * Name : HMResetEvent
1999 * Purpose : router function for ResetEvent
2000 * Parameters:
2001 * Variables :
2002 * Result :
2003 * Remark :
2004 * Status :
2005 *
2006 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
2007 *****************************************************************************/
2008
2009BOOL HMResetEvent(HANDLE hEvent)
2010{
2011 int iIndex; /* index into the handle table */
2012 DWORD dwResult; /* result from the device handler's API */
2013 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
2014
2015 /* validate handle */
2016 iIndex = _HMHandleQuery(hEvent); /* get the index */
2017 if (-1 == iIndex) /* error ? */
2018 {
2019 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
2020 return FALSE; /* signal failure */
2021 }
2022
2023 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
2024 dwResult = pHMHandle->pDeviceHandler->ResetEvent(&pHMHandle->hmHandleData);
2025
2026 return (dwResult); /* deliver return code */
2027}
2028
2029
2030/*****************************************************************************
2031 * Name : HANDLE HMCreateEvent
2032 * Purpose : Wrapper for the CreateEvent() API
2033 * Parameters:
2034 * Variables :
2035 * Result :
2036 * Remark :
2037 * Status :
2038 *
2039 * Author : Patrick Haller [Wed, 1998/02/11 20:44]
2040 *****************************************************************************/
2041
2042HANDLE HMCreateEvent(LPSECURITY_ATTRIBUTES lpsa,
2043 BOOL bManualReset,
2044 BOOL bInitialState,
2045 LPCTSTR lpName)
2046{
2047 int iIndex; /* index into the handle table */
2048 int iIndexNew; /* index into the handle table */
2049 HMDeviceHandler *pDeviceHandler; /* device handler for this handle */
2050 PHMHANDLEDATA pHMHandleData;
2051 DWORD rc; /* API return code */
2052
2053
2054 pDeviceHandler = HMGlobals.pHMEvent; /* device is predefined */
2055
2056 iIndexNew = _HMHandleGetFree(); /* get free handle */
2057 if (-1 == iIndexNew) /* oops, no free handles ! */
2058 {
2059 SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
2060 return 0; /* signal error */
2061 }
2062
2063
2064 /* initialize the complete HMHANDLEDATA structure */
2065 pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
2066 pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
2067 pHMHandleData->dwAccess = 0;
2068 pHMHandleData->dwShare = 0;
2069 pHMHandleData->dwCreation = 0;
2070 pHMHandleData->dwFlags = 0;
2071 pHMHandleData->lpHandlerData = NULL;
2072
2073
2074 /* we've got to mark the handle as occupied here, since another device */
2075 /* could be created within the device handler -> deadlock */
2076
2077 /* write appropriate entry into the handle table if open succeeded */
2078 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
2079 TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
2080
2081 /* call the device handler */
2082 rc = pDeviceHandler->CreateEvent(&TabWin32Handles[iIndexNew].hmHandleData,
2083 lpsa,
2084 bManualReset,
2085 bInitialState,
2086 lpName);
2087 if (rc != NO_ERROR) /* oops, creation failed within the device handler */
2088 {
2089 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
2090 SetLastError(rc); /* Hehe, OS/2 and NT are pretty compatible :) */
2091 return 0; /* signal error */
2092 }
2093 else
2094 SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
2095
2096 return iIndexNew; /* return valid handle */
2097}
2098
2099
2100/*****************************************************************************
2101 * Name : HANDLE HMCreateMutex
2102 * Purpose : Wrapper for the CreateMutex() API
2103 * Parameters:
2104 * Variables :
2105 * Result :
2106 * Remark :
2107 * Status :
2108 *
2109 * Author : Patrick Haller [Wed, 1998/02/11 20:44]
2110 *****************************************************************************/
2111
2112HANDLE HMCreateMutex(LPSECURITY_ATTRIBUTES lpsa,
2113 BOOL bInitialOwner,
2114 LPCTSTR lpName)
2115{
2116 int iIndex; /* index into the handle table */
2117 int iIndexNew; /* index into the handle table */
2118 HMDeviceHandler *pDeviceHandler; /* device handler for this handle */
2119 PHMHANDLEDATA pHMHandleData;
2120 DWORD rc; /* API return code */
2121
2122
2123 pDeviceHandler = HMGlobals.pHMMutex; /* device is predefined */
2124
2125 iIndexNew = _HMHandleGetFree(); /* get free handle */
2126 if (-1 == iIndexNew) /* oops, no free handles ! */
2127 {
2128 SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
2129 return 0; /* signal error */
2130 }
2131
2132
2133 /* initialize the complete HMHANDLEDATA structure */
2134 pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
2135 pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
2136 pHMHandleData->dwAccess = 0;
2137 pHMHandleData->dwShare = 0;
2138 pHMHandleData->dwCreation = 0;
2139 pHMHandleData->dwFlags = 0;
2140 pHMHandleData->lpHandlerData = NULL;
2141
2142
2143 /* we've got to mark the handle as occupied here, since another device */
2144 /* could be created within the device handler -> deadlock */
2145
2146 /* write appropriate entry into the handle table if open succeeded */
2147 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
2148 TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
2149
2150 /* call the device handler */
2151 rc = pDeviceHandler->CreateMutex(&TabWin32Handles[iIndexNew].hmHandleData,
2152 lpsa,
2153 bInitialOwner,
2154 lpName);
2155 if (rc != NO_ERROR) /* oops, creation failed within the device handler */
2156 {
2157 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
2158 SetLastError(rc); /* Hehe, OS/2 and NT are pretty compatible :) */
2159 return 0; /* signal error */
2160 }
2161 else
2162 SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
2163
2164 return iIndexNew; /* return valid handle */
2165}
2166
2167
2168/*****************************************************************************
2169 * Name : HANDLE HMOpenEvent
2170 * Purpose : Wrapper for the OpenEvent() API
2171 * Parameters:
2172 * Variables :
2173 * Result :
2174 * Remark :
2175 * Status :
2176 *
2177 * Author : Patrick Haller [Wed, 1998/02/11 20:44]
2178 *****************************************************************************/
2179
2180HANDLE HMOpenEvent(DWORD fdwAccess,
2181 BOOL fInherit,
2182 LPCTSTR lpName)
2183{
2184 int iIndex; /* index into the handle table */
2185 int iIndexNew; /* index into the handle table */
2186 HMDeviceHandler *pDeviceHandler; /* device handler for this handle */
2187 PHMHANDLEDATA pHMHandleData;
2188 DWORD rc; /* API return code */
2189
2190
2191 pDeviceHandler = HMGlobals.pHMEvent; /* device is predefined */
2192
2193 iIndexNew = _HMHandleGetFree(); /* get free handle */
2194 if (-1 == iIndexNew) /* oops, no free handles ! */
2195 {
2196 SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
2197 return 0; /* signal error */
2198 }
2199
2200
2201 /* initialize the complete HMHANDLEDATA structure */
2202 pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
2203 pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
2204 pHMHandleData->dwAccess = fdwAccess;
2205 pHMHandleData->dwShare = 0;
2206 pHMHandleData->dwCreation = 0;
2207 pHMHandleData->dwFlags = 0;
2208 pHMHandleData->lpHandlerData = NULL;
2209
2210
2211 /* we've got to mark the handle as occupied here, since another device */
2212 /* could be created within the device handler -> deadlock */
2213
2214 /* write appropriate entry into the handle table if open succeeded */
2215 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
2216 TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
2217
2218 /* call the device handler */
2219 rc = pDeviceHandler->OpenEvent(&TabWin32Handles[iIndexNew].hmHandleData,
2220 fInherit,
2221 lpName);
2222 if (rc != NO_ERROR) /* oops, creation failed within the device handler */
2223 {
2224 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
2225 SetLastError(rc); /* Hehe, OS/2 and NT are pretty compatible :) */
2226 return 0; /* signal error */
2227 }
2228 else
2229 SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
2230
2231 return iIndexNew; /* return valid handle */
2232}
2233
2234
2235/*****************************************************************************
2236 * Name : HANDLE HMOpenMutex
2237 * Purpose : Wrapper for the OpenMutex() API
2238 * Parameters:
2239 * Variables :
2240 * Result :
2241 * Remark :
2242 * Status :
2243 *
2244 * Author : Patrick Haller [Wed, 1998/02/11 20:44]
2245 *****************************************************************************/
2246
2247HANDLE HMOpenMutex(DWORD fdwAccess,
2248 BOOL fInherit,
2249 LPCTSTR lpName)
2250{
2251 int iIndex; /* index into the handle table */
2252 int iIndexNew; /* index into the handle table */
2253 HMDeviceHandler *pDeviceHandler; /* device handler for this handle */
2254 PHMHANDLEDATA pHMHandleData;
2255 DWORD rc; /* API return code */
2256
2257
2258 pDeviceHandler = HMGlobals.pHMMutex; /* device is predefined */
2259
2260 iIndexNew = _HMHandleGetFree(); /* get free handle */
2261 if (-1 == iIndexNew) /* oops, no free handles ! */
2262 {
2263 SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
2264 return 0; /* signal error */
2265 }
2266
2267
2268 /* initialize the complete HMHANDLEDATA structure */
2269 pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
2270 pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
2271 pHMHandleData->dwAccess = fdwAccess;
2272 pHMHandleData->dwShare = 0;
2273 pHMHandleData->dwCreation = 0;
2274 pHMHandleData->dwFlags = 0;
2275 pHMHandleData->lpHandlerData = NULL;
2276
2277
2278 /* we've got to mark the handle as occupied here, since another device */
2279 /* could be created within the device handler -> deadlock */
2280
2281 /* write appropriate entry into the handle table if open succeeded */
2282 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
2283 TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
2284
2285 /* call the device handler */
2286 rc = pDeviceHandler->OpenMutex(&TabWin32Handles[iIndexNew].hmHandleData,
2287 fInherit,
2288 lpName);
2289 if (rc != NO_ERROR) /* oops, creation failed within the device handler */
2290 {
2291 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
2292 SetLastError(rc); /* Hehe, OS/2 and NT are pretty compatible :) */
2293 return 0; /* signal error */
2294 }
2295 else
2296 SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
2297
2298 return iIndexNew; /* return valid handle */
2299}
2300
2301
2302/*****************************************************************************
2303 * Name : HANDLE HMCreateSemaphore
2304 * Purpose : Wrapper for the CreateSemaphore() API
2305 * Parameters:
2306 * Variables :
2307 * Result :
2308 * Remark :
2309 * Status :
2310 *
2311 * Author : Patrick Haller [Wed, 1998/02/11 20:44]
2312 *****************************************************************************/
2313
2314HANDLE HMCreateSemaphore(LPSECURITY_ATTRIBUTES lpsa,
2315 LONG lInitialCount,
2316 LONG lMaximumCount,
2317 LPCTSTR lpName)
2318{
2319 int iIndex; /* index into the handle table */
2320 int iIndexNew; /* index into the handle table */
2321 HMDeviceHandler *pDeviceHandler; /* device handler for this handle */
2322 PHMHANDLEDATA pHMHandleData;
2323 DWORD rc; /* API return code */
2324
2325
2326 pDeviceHandler = HMGlobals.pHMSemaphore; /* device is predefined */
2327
2328 iIndexNew = _HMHandleGetFree(); /* get free handle */
2329 if (-1 == iIndexNew) /* oops, no free handles ! */
2330 {
2331 SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
2332 return 0; /* signal error */
2333 }
2334
2335
2336 /* initialize the complete HMHANDLEDATA structure */
2337 pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
2338 pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
2339 pHMHandleData->dwAccess = 0;
2340 pHMHandleData->dwShare = 0;
2341 pHMHandleData->dwCreation = 0;
2342 pHMHandleData->dwFlags = 0;
2343 pHMHandleData->lpHandlerData = NULL;
2344
2345
2346 /* we've got to mark the handle as occupied here, since another device */
2347 /* could be created within the device handler -> deadlock */
2348
2349 /* write appropriate entry into the handle table if open succeeded */
2350 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
2351 TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
2352
2353 /* call the device handler */
2354 rc = pDeviceHandler->CreateSemaphore(&TabWin32Handles[iIndexNew].hmHandleData,
2355 lpsa,
2356 lInitialCount,
2357 lMaximumCount,
2358 lpName);
2359 if (rc != NO_ERROR) /* oops, creation failed within the device handler */
2360 {
2361 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
2362 SetLastError(rc); /* Hehe, OS/2 and NT are pretty compatible :) */
2363 return 0; /* signal failure */
2364 }
2365 else
2366 SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
2367
2368 return iIndexNew; /* return valid handle */
2369}
2370
2371
2372/*****************************************************************************
2373 * Name : HANDLE HMOpenSemaphore
2374 * Purpose : Wrapper for the OpenSemaphore() API
2375 * Parameters:
2376 * Variables :
2377 * Result :
2378 * Remark :
2379 * Status :
2380 *
2381 * Author : Patrick Haller [Wed, 1998/02/11 20:44]
2382 *****************************************************************************/
2383
2384HANDLE HMOpenSemaphore(DWORD fdwAccess,
2385 BOOL fInherit,
2386 LPCTSTR lpName)
2387{
2388 int iIndex; /* index into the handle table */
2389 int iIndexNew; /* index into the handle table */
2390 HMDeviceHandler *pDeviceHandler; /* device handler for this handle */
2391 PHMHANDLEDATA pHMHandleData;
2392 DWORD rc; /* API return code */
2393
2394
2395 pDeviceHandler = HMGlobals.pHMSemaphore; /* device is predefined */
2396
2397 iIndexNew = _HMHandleGetFree(); /* get free handle */
2398 if (-1 == iIndexNew) /* oops, no free handles ! */
2399 {
2400 SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
2401 return 0; /* signal error */
2402 }
2403
2404
2405 /* initialize the complete HMHANDLEDATA structure */
2406 pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
2407 pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
2408 pHMHandleData->dwAccess = fdwAccess;
2409 pHMHandleData->dwShare = 0;
2410 pHMHandleData->dwCreation = 0;
2411 pHMHandleData->dwFlags = 0;
2412 pHMHandleData->lpHandlerData = NULL;
2413
2414
2415 /* we've got to mark the handle as occupied here, since another device */
2416 /* could be created within the device handler -> deadlock */
2417
2418 /* write appropriate entry into the handle table if open succeeded */
2419 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
2420 TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
2421
2422 /* call the device handler */
2423 rc = pDeviceHandler->OpenSemaphore(&TabWin32Handles[iIndexNew].hmHandleData,
2424 fInherit,
2425 lpName);
2426 if (rc != NO_ERROR) /* oops, creation failed within the device handler */
2427 {
2428 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
2429 SetLastError(rc); /* Hehe, OS/2 and NT are pretty compatible :) */
2430 return 0; /* signal failure */
2431 }
2432 else
2433 SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
2434
2435 return iIndexNew; /* return valid handle */
2436}
2437
2438
2439/*****************************************************************************
2440 * Name : HMReleaseSemaphore
2441 * Purpose : router function for ReleaseSemaphore
2442 * Parameters:
2443 * Variables :
2444 * Result :
2445 * Remark :
2446 * Status :
2447 *
2448 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
2449 *****************************************************************************/
2450
2451BOOL HMReleaseSemaphore(HANDLE hEvent,
2452 LONG cReleaseCount,
2453 LPLONG lpPreviousCount)
2454{
2455 int iIndex; /* index into the handle table */
2456 DWORD dwResult; /* result from the device handler's API */
2457 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
2458
2459 /* validate handle */
2460 iIndex = _HMHandleQuery(hEvent); /* get the index */
2461 if (-1 == iIndex) /* error ? */
2462 {
2463 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
2464 return 0; /* signal failure */
2465 }
2466 else
2467 SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
2468
2469 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
2470 dwResult = pHMHandle->pDeviceHandler->ReleaseSemaphore(&pHMHandle->hmHandleData,
2471 cReleaseCount,
2472 lpPreviousCount);
2473
2474 return (dwResult); /* deliver return code */
2475}
2476
2477
2478/*****************************************************************************
2479 * Name : HANDLE HMCreateFileMapping
2480 * Purpose : Wrapper for the CreateFileMapping() API
2481 * Parameters:
2482 * Variables :
2483 * Result :
2484 * Remark :
2485 * Status :
2486 *
2487 * Author : Patrick Haller [Wed, 1998/02/11 20:44]
2488 *****************************************************************************/
2489
2490HANDLE HMCreateFileMapping(HANDLE hFile,
2491 LPSECURITY_ATTRIBUTES lpFileMappingAttributes,
2492 DWORD flProtect,
2493 DWORD dwMaximumSizeHigh,
2494 DWORD dwMaximumSizeLow,
2495 LPCTSTR lpName)
2496{
2497 int iIndex; /* index into the handle table */
2498 int iIndexNew; /* index into the handle table */
2499 HMDeviceHandler *pDeviceHandler; /* device handler for this handle */
2500 PHMHANDLEDATA pHMHandleData;
2501 DWORD rc; /* API return code */
2502 HANDLE hOldMemMap = -1;
2503
2504 pDeviceHandler = HMGlobals.pHMFileMapping; /* device is predefined */
2505
2506 iIndexNew = _HMHandleGetFree(); /* get free handle */
2507 if (-1 == iIndexNew) /* oops, no free handles ! */
2508 {
2509 SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
2510 return 0; /* signal error */
2511 }
2512
2513
2514 /* initialize the complete HMHANDLEDATA structure */
2515 pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
2516 pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
2517 pHMHandleData->dwAccess = 0;
2518 pHMHandleData->dwShare = 0;
2519 pHMHandleData->dwCreation = 0;
2520 pHMHandleData->dwFlags = 0;
2521 pHMHandleData->lpHandlerData = NULL;
2522
2523
2524 /* we've got to mark the handle as occupied here, since another device */
2525 /* could be created within the device handler -> deadlock */
2526
2527 /* write appropriate entry into the handle table if open succeeded */
2528 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
2529 TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
2530
2531 /* call the device handler */
2532
2533 // @@@PH: Note: hFile is a Win32-style handle, it's not (yet) converted to
2534 // a valid HandleManager-internal handle!
2535 rc = pDeviceHandler->CreateFileMapping(&TabWin32Handles[iIndexNew].hmHandleData,
2536 hFile,
2537 lpFileMappingAttributes,
2538 flProtect,
2539 dwMaximumSizeHigh,
2540 dwMaximumSizeLow,
2541 lpName, &hOldMemMap);
2542
2543 if (rc != NO_ERROR) /* oops, creation failed within the device handler */
2544 {
2545 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
2546 SetLastError(rc); /* Hehe, OS/2 and NT are pretty compatible :) */
2547 if(rc == ERROR_ALREADY_EXISTS) {
2548 return hOldMemMap; //return handle of existing file mapping
2549 }
2550 else return (NULL); /* signal error */
2551 }
2552 else
2553 SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
2554
2555 return iIndexNew; /* return valid handle */
2556}
2557
2558
2559/*****************************************************************************
2560 * Name : HANDLE HMOpenFileMapping
2561 * Purpose : Wrapper for the OpenFileMapping() API
2562 * Parameters:
2563 * Variables :
2564 * Result : HANDLE if succeeded,
2565 * NULL if failed.
2566 * Remark :
2567 * Status :
2568 *
2569 * Author : Patrick Haller [Wed, 1998/02/11 20:44]
2570 *****************************************************************************/
2571
2572HANDLE HMOpenFileMapping(DWORD fdwAccess,
2573 BOOL fInherit,
2574 LPCTSTR lpName)
2575{
2576 int iIndex; /* index into the handle table */
2577 int iIndexNew; /* index into the handle table */
2578 HMDeviceHandler *pDeviceHandler; /* device handler for this handle */
2579 PHMHANDLEDATA pHMHandleData;
2580 DWORD rc; /* API return code */
2581
2582
2583 pDeviceHandler = HMGlobals.pHMFileMapping; /* device is predefined */
2584
2585 iIndexNew = _HMHandleGetFree(); /* get free handle */
2586 if (-1 == iIndexNew) /* oops, no free handles ! */
2587 {
2588 SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
2589 return (NULL); /* signal error */
2590 }
2591
2592 /* initialize the complete HMHANDLEDATA structure */
2593 pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
2594 pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
2595 pHMHandleData->dwAccess = fdwAccess;
2596 pHMHandleData->dwShare = 0;
2597 pHMHandleData->dwCreation = 0;
2598 pHMHandleData->dwFlags = 0;
2599 pHMHandleData->lpHandlerData = NULL;
2600
2601
2602 /* we've got to mark the handle as occupied here, since another device */
2603 /* could be created within the device handler -> deadlock */
2604
2605 /* write appropriate entry into the handle table if open succeeded */
2606 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
2607 TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
2608
2609 /* call the device handler */
2610 rc = pDeviceHandler->OpenFileMapping(&TabWin32Handles[iIndexNew].hmHandleData,
2611 fdwAccess,
2612 fInherit,
2613 lpName);
2614 if (rc != NO_ERROR) /* oops, creation failed within the device handler */
2615 {
2616 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
2617 SetLastError(rc); /* Hehe, OS/2 and NT are pretty compatible :) */
2618 return (NULL); /* signal error */
2619 }
2620 else
2621 SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
2622
2623 return iIndexNew; /* return valid handle */
2624}
2625
2626
2627/*****************************************************************************
2628 * Name : HMMapViewOfFileEx
2629 * Purpose : router function for MapViewOfFileEx
2630 * Parameters:
2631 * Variables :
2632 * Result :
2633 * Remark :
2634 * Status :
2635 *
2636 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
2637 *****************************************************************************/
2638
2639LPVOID HMMapViewOfFileEx(HANDLE hFileMappingObject,
2640 DWORD dwDesiredAccess,
2641 DWORD dwFileOffsetHigh,
2642 DWORD dwFileOffsetLow,
2643 DWORD dwNumberOfBytesToMap,
2644 LPVOID lpBaseAddress)
2645{
2646 int iIndex; /* index into the handle table */
2647 LPVOID lpResult; /* result from the device handler's API */
2648 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
2649
2650 /* validate handle */
2651 iIndex = _HMHandleQuery(hFileMappingObject); /* get the index */
2652 if (-1 == iIndex) /* error ? */
2653 {
2654 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
2655 return (NULL); /* signal failure */
2656 }
2657
2658 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
2659 lpResult = pHMHandle->pDeviceHandler->MapViewOfFileEx(&pHMHandle->hmHandleData,
2660 dwDesiredAccess,
2661 dwFileOffsetHigh,
2662 dwFileOffsetLow,
2663 dwNumberOfBytesToMap,
2664 lpBaseAddress);
2665
2666 return (lpResult); /* deliver return code */
2667}
2668
2669/*****************************************************************************
2670 * Name : HMWaitForMultipleObjects
2671 * Purpose : router function for WaitForMultipleObjects
2672 * Parameters:
2673 * Variables :
2674 * Result :
2675 * Remark :
2676 * Status :
2677 *
2678 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
2679 *****************************************************************************/
2680
2681DWORD HMWaitForMultipleObjects (DWORD cObjects,
2682 PHANDLE lphObjects,
2683 BOOL fWaitAll,
2684 DWORD dwTimeout)
2685{
2686 ULONG ulIndex;
2687 PHANDLE pArrayOfHandles;
2688 PHANDLE pLoop1 = lphObjects;
2689 PHANDLE pLoop2;
2690 DWORD rc;
2691
2692 // allocate array for handle table
2693 pArrayOfHandles = (PHANDLE)alloca(cObjects * sizeof(HANDLE));
2694 if (pArrayOfHandles == NULL)
2695 {
2696 dprintf(("ERROR: HMWaitForMultipleObjects: alloca failed to allocate %d handles", cObjects));
2697 O32_SetLastError(ERROR_NOT_ENOUGH_MEMORY);
2698 return WAIT_FAILED;
2699 }
2700 else
2701 pLoop2 = pArrayOfHandles;
2702
2703 // convert array to odin handles
2704 for (ulIndex = 0;
2705
2706 ulIndex < cObjects;
2707
2708 ulIndex++,
2709 pLoop1++,
2710 pLoop2++)
2711 {
2712 rc = HMHandleTranslateToOS2 (*pLoop1, // translate handle
2713 pLoop2);
2714
2715 dprintf(("KERNEL32: HMWaitForMultipleObjects: handle %3i: ODIN-%08xh, Open32-%08xh\n",
2716 ulIndex,
2717 *pLoop1,
2718 *pLoop2));
2719
2720 // @@@PH to imlpement: check handle type!
2721 // SvL: We still use Open32 handles for threads & processes -> don't fail here!
2722 if (rc != NO_ERROR)
2723 {
2724 dprintf(("KERNEL32: HMWaitForMultipleObjects - WARNING: handle %08xh is NOT an Odin handle (probably Open32 thread or process)\n",
2725 *pLoop1));
2726
2727 *pLoop2 = *pLoop1;
2728//// O32_SetLastError(ERROR_INVALID_HANDLE);
2729//// return (WAIT_FAILED);
2730 }
2731 }
2732
2733 // OK, now forward to Open32.
2734 // @@@PH: Note this will fail on handles that do NOT belong to Open32
2735 // but to i.e. the console subsystem!
2736 rc = O32_WaitForMultipleObjects(cObjects,
2737 pArrayOfHandles,
2738 fWaitAll,
2739 dwTimeout);
2740
2741 return (rc); // OK, done
2742}
2743
2744
2745/*****************************************************************************
2746 * Name : HMWaitForMultipleObjectsEx
2747 * Purpose : router function for WaitForMultipleObjectsEx
2748 * Parameters:
2749 * Variables :
2750 * Result :
2751 * Remark :
2752 * Status :
2753 *
2754 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
2755 *****************************************************************************/
2756
2757DWORD HMWaitForMultipleObjectsEx (DWORD cObjects,
2758 PHANDLE lphObjects,
2759 BOOL fWaitAll,
2760 DWORD dwTimeout,
2761 BOOL fAlertable)
2762{
2763 // @@@PH: Note: fAlertable is ignored !
2764 return (HMWaitForMultipleObjects(cObjects,
2765 lphObjects,
2766 fWaitAll,
2767 dwTimeout));
2768}
2769
2770/*****************************************************************************
2771 * Name : HMMsgWaitForMultipleObjects
2772 * Purpose : router function for MsgWaitForMultipleObjects
2773 * Parameters:
2774 * Variables :
2775 * Result :
2776 * Remark : Open32 doesn't implement this properly! (doesn't check dwWakeMask)
2777 * Status :
2778 *
2779 * Author : Patrick Haller [Wed, 1999/06/17 20:44]
2780 *****************************************************************************/
2781
2782DWORD HMMsgWaitForMultipleObjects (DWORD nCount,
2783 LPHANDLE pHandles,
2784 BOOL fWaitAll,
2785 DWORD dwMilliseconds,
2786 DWORD dwWakeMask)
2787{
2788 ULONG ulIndex;
2789 PHANDLE pArrayOfHandles;
2790 PHANDLE pLoop1 = pHandles;
2791 PHANDLE pLoop2;
2792 DWORD rc;
2793
2794 // allocate array for handle table
2795 pArrayOfHandles = (PHANDLE)alloca(nCount * sizeof(HANDLE));
2796 if (pArrayOfHandles == NULL)
2797 {
2798 dprintf(("ERROR: HMMsgWaitForMultipleObjects: alloca failed to allocate %d handles", nCount));
2799 O32_SetLastError(ERROR_NOT_ENOUGH_MEMORY);
2800 return WAIT_FAILED;
2801 }
2802 else
2803 pLoop2 = pArrayOfHandles;
2804
2805 // convert array to odin handles
2806 for (ulIndex = 0;
2807
2808 ulIndex < nCount;
2809
2810 ulIndex++,
2811 pLoop1++,
2812 pLoop2++)
2813 {
2814 rc = HMHandleTranslateToOS2 (*pLoop1, // translate handle
2815 pLoop2);
2816
2817 // SvL: We still use Open32 handles for threads & processes -> don't fail here!
2818 if (rc != NO_ERROR)
2819 {
2820 dprintf(("KERNEL32: HMMsgWaitForMultipleObjects - WARNING: handle %08xh is NOT an Odin handle (probably Open32 thread or process)\n",
2821 *pLoop1));
2822
2823 *pLoop2 = *pLoop1;
2824//// O32_SetLastError(ERROR_INVALID_HANDLE);
2825//// return (WAIT_FAILED);
2826 }
2827 }
2828
2829 // OK, now forward to Open32.
2830 // @@@PH: Note this will fail on handles that do NOT belong to Open32
2831 // but to i.e. the console subsystem!
2832 rc = O32_MsgWaitForMultipleObjects(nCount,
2833 pArrayOfHandles,
2834 fWaitAll, dwMilliseconds,
2835 dwWakeMask);
2836
2837 return (rc); // OK, done
2838}
2839/*****************************************************************************
2840 * Name : HMDeviceIoControl
2841 * Purpose : router function for DeviceIoControl
2842 * Parameters:
2843 * Variables :
2844 * Result :
2845 * Remark :
2846 * Status :
2847 *
2848 * Author : Sander van Leeuwen
2849 *****************************************************************************/
2850
2851BOOL WIN32API DeviceIoControl(HANDLE hDevice, DWORD dwIoControlCode,
2852 LPVOID lpInBuffer, DWORD nInBufferSize,
2853 LPVOID lpOutBuffer, DWORD nOutBufferSize,
2854 LPDWORD lpBytesReturned, LPOVERLAPPED lpOverlapped)
2855{
2856 int iIndex; /* index into the handle table */
2857 BOOL fResult; /* result from the device handler's CloseHandle() */
2858 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
2859
2860 /* validate handle */
2861 iIndex = _HMHandleQuery(hDevice); /* get the index */
2862 if (-1 == iIndex) /* error ? */
2863 {
2864 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
2865 return (FALSE); /* signal failure */
2866 }
2867
2868 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
2869 fResult = pHMHandle->pDeviceHandler->DeviceIoControl(&pHMHandle->hmHandleData,
2870 dwIoControlCode,
2871 lpInBuffer, nInBufferSize,
2872 lpOutBuffer, nOutBufferSize,
2873 lpBytesReturned, lpOverlapped);
2874
2875 return (fResult); /* deliver return code */
2876}
2877
2878
2879/*****************************************************************************
2880 * Name : HMSetupComm
2881 * Purpose : router function for SetupComm
2882 * Parameters:
2883 * Variables :
2884 * Result :
2885 * Remark :
2886 * Status :
2887 *
2888 * Author : Achim Hasenmueller [Sat, 1999/11/27 13:13]
2889 *****************************************************************************/
2890
2891BOOL HMSetupComm(HANDLE hFile, DWORD dwInQueue, DWORD dwOutQueue)
2892{
2893 int iIndex; /* index into the handle table */
2894 BOOL bResult; /* result from the device handler's API */
2895 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
2896
2897 /* validate handle */
2898 iIndex = _HMHandleQuery(hFile); /* get the index */
2899 if (-1 == iIndex) /* error ? */
2900 {
2901 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
2902 return (NULL); /* signal failure */
2903 }
2904
2905 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
2906 bResult = pHMHandle->pDeviceHandler->SetupComm(&pHMHandle->hmHandleData,
2907 dwInQueue, dwOutQueue);
2908
2909 return (bResult); /* deliver return code */
2910}
2911
2912
2913/*****************************************************************************
2914 * Name : HMGetCommState
2915 * Purpose : router function for GetCommState
2916 * Parameters:
2917 * Variables :
2918 * Result :
2919 * Remark :
2920 * Status :
2921 *
2922 * Author : Achim Hasenmueller [Sat, 1999/11/27 13:40]
2923 *****************************************************************************/
2924
2925BOOL HMGetCommState(INT hCommDev, LPDCB lpdcb)
2926{
2927 int iIndex; /* index into the handle table */
2928 BOOL bResult; /* result from the device handler's API */
2929 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
2930
2931 /* validate handle */
2932 iIndex = _HMHandleQuery(hCommDev); /* get the index */
2933 if (-1 == iIndex) /* error ? */
2934 {
2935 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
2936 return (NULL); /* signal failure */
2937 }
2938
2939 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
2940 bResult = pHMHandle->pDeviceHandler->GetCommState(&pHMHandle->hmHandleData,
2941 lpdcb);
2942
2943 return (bResult); /* deliver return code */
2944}
2945
2946/*****************************************************************************
2947 * Name : HMOpenThreadToken
2948 * Purpose : router function for NtOpenThreadToken
2949 * Parameters:
2950 * Variables :
2951 * Result :
2952 * Remark :
2953 * Status :
2954 *
2955 * Author : SvL
2956 *****************************************************************************/
2957
2958DWORD HMOpenThreadToken(HANDLE ThreadHandle,
2959 DWORD DesiredAccess,
2960 DWORD OpenAsSelf,
2961 HANDLE *TokenHandle)
2962{
2963 int iIndex; /* index into the handle table */
2964 int iIndexNew; /* index into the handle table */
2965 HMDeviceHandler *pDeviceHandler; /* device handler for this handle */
2966 PHMHANDLEDATA pHMHandleData;
2967 DWORD rc; /* API return code */
2968
2969 pDeviceHandler = HMGlobals.pHMToken; /* device is predefined */
2970
2971 iIndexNew = _HMHandleGetFree(); /* get free handle */
2972 if (-1 == iIndexNew) /* oops, no free handles ! */
2973 {
2974 SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
2975 return ERROR_NOT_ENOUGH_MEMORY;
2976 }
2977
2978 /* initialize the complete HMHANDLEDATA structure */
2979 pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
2980 pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
2981 pHMHandleData->dwAccess = DesiredAccess;
2982 pHMHandleData->dwShare = 0;
2983 pHMHandleData->dwCreation = 0;
2984 pHMHandleData->dwFlags = 0;
2985 pHMHandleData->lpHandlerData = NULL;
2986
2987
2988 /* we've got to mark the handle as occupied here, since another device */
2989 /* could be created within the device handler -> deadlock */
2990
2991 /* write appropriate entry into the handle table if open succeeded */
2992 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
2993 TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
2994
2995 /* call the device handler */
2996
2997 // @@@PH: Note: hFile is a Win32-style handle, it's not (yet) converted to
2998 // a valid HandleManager-internal handle!
2999 rc = pDeviceHandler->OpenThreadToken(&TabWin32Handles[iIndexNew].hmHandleData,
3000 ThreadHandle,
3001 OpenAsSelf);
3002
3003 if (rc != NO_ERROR) /* oops, creation failed within the device handler */
3004 {
3005 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
3006 return (rc); /* signal error */
3007 }
3008 else
3009 SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
3010
3011 *TokenHandle = iIndexNew; /* return valid handle */
3012 return STATUS_SUCCESS;
3013}
3014
3015/*****************************************************************************
3016 * Name : HMOpenProcessToken
3017 * Purpose : router function for NtOpenProcessToken
3018 * Parameters:
3019 * Variables :
3020 * Result :
3021 * Remark :
3022 * Status :
3023 *
3024 * Author : SvL
3025 *****************************************************************************/
3026DWORD HMOpenProcessToken(HANDLE ProcessHandle,
3027 DWORD DesiredAccess,
3028 DWORD dwUserData,
3029 HANDLE *TokenHandle)
3030{
3031 int iIndex; /* index into the handle table */
3032 int iIndexNew; /* index into the handle table */
3033 HMDeviceHandler *pDeviceHandler; /* device handler for this handle */
3034 PHMHANDLEDATA pHMHandleData;
3035 DWORD rc; /* API return code */
3036
3037 pDeviceHandler = HMGlobals.pHMToken; /* device is predefined */
3038
3039 iIndexNew = _HMHandleGetFree(); /* get free handle */
3040 if (-1 == iIndexNew) /* oops, no free handles ! */
3041 {
3042 SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
3043 return ERROR_NOT_ENOUGH_MEMORY;
3044 }
3045
3046 /* initialize the complete HMHANDLEDATA structure */
3047 pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
3048 pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
3049 pHMHandleData->dwAccess = DesiredAccess;
3050 pHMHandleData->dwShare = 0;
3051 pHMHandleData->dwCreation = 0;
3052 pHMHandleData->dwFlags = 0;
3053 pHMHandleData->lpHandlerData = NULL;
3054
3055
3056 /* we've got to mark the handle as occupied here, since another device */
3057 /* could be created within the device handler -> deadlock */
3058
3059 /* write appropriate entry into the handle table if open succeeded */
3060 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
3061 TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
3062
3063 /* call the device handler */
3064
3065 // @@@PH: Note: hFile is a Win32-style handle, it's not (yet) converted to
3066 // a valid HandleManager-internal handle!
3067 rc = pDeviceHandler->OpenProcessToken(&TabWin32Handles[iIndexNew].hmHandleData,
3068 dwUserData,
3069 ProcessHandle);
3070
3071 if (rc != NO_ERROR) /* oops, creation failed within the device handler */
3072 {
3073 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
3074 return (rc); /* signal error */
3075 }
3076 else
3077 SetLastError(ERROR_SUCCESS); //@@@PH 1999/10/27 rc5desg requires this?
3078
3079 *TokenHandle = iIndexNew; /* return valid handle */
3080 return STATUS_SUCCESS;
3081}
3082/*****************************************************************************
3083 * Name : HMCreateThread
3084 * Purpose : router function for CreateThread
3085 * Parameters:
3086 * Variables :
3087 * Result :
3088 * Remark :
3089 * Status :
3090 *
3091 * Author : SvL
3092 *****************************************************************************/
3093HANDLE HMCreateThread(LPSECURITY_ATTRIBUTES lpsa,
3094 DWORD cbStack,
3095 LPTHREAD_START_ROUTINE lpStartAddr,
3096 LPVOID lpvThreadParm,
3097 DWORD fdwCreate,
3098 LPDWORD lpIDThread,
3099 BOOL fFirstThread)
3100{
3101 int iIndex; /* index into the handle table */
3102 int iIndexNew; /* index into the handle table */
3103 HMDeviceHandler *pDeviceHandler; /* device handler for this handle */
3104 PHMHANDLEDATA pHMHandleData;
3105 HANDLE rc; /* API return code */
3106
3107 SetLastError(ERROR_SUCCESS);
3108
3109 pDeviceHandler = HMGlobals.pHMThread; /* device is predefined */
3110
3111 iIndexNew = _HMHandleGetFree(); /* get free handle */
3112 if (-1 == iIndexNew) /* oops, no free handles ! */
3113 {
3114 SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
3115 return 0;
3116 }
3117
3118 /* initialize the complete HMHANDLEDATA structure */
3119 pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
3120 pHMHandleData->dwType = FILE_TYPE_UNKNOWN; /* unknown handle type */
3121 pHMHandleData->dwAccess = 0;
3122 pHMHandleData->dwShare = 0;
3123 pHMHandleData->dwCreation = 0;
3124 pHMHandleData->dwFlags = 0;
3125 pHMHandleData->lpHandlerData = NULL;
3126
3127
3128 /* we've got to mark the handle as occupied here, since another device */
3129 /* could be created within the device handler -> deadlock */
3130
3131 /* write appropriate entry into the handle table if open succeeded */
3132 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
3133 TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
3134
3135 /* call the device handler */
3136
3137 // @@@PH: Note: hFile is a Win32-style handle, it's not (yet) converted to
3138 // a valid HandleManager-internal handle!
3139 rc = pDeviceHandler->CreateThread(&TabWin32Handles[iIndexNew].hmHandleData,
3140 lpsa, cbStack, lpStartAddr,
3141 lpvThreadParm, fdwCreate, lpIDThread, fFirstThread);
3142
3143 if (rc == 0) /* oops, creation failed within the device handler */
3144 {
3145 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
3146 return 0; /* signal error */
3147 }
3148
3149 return iIndexNew;
3150}
3151/*****************************************************************************
3152 * Name : HMGetThreadPriority
3153 * Purpose : router function for GetThreadPriority
3154 * Parameters:
3155 * Variables :
3156 * Result :
3157 * Remark :
3158 * Status :
3159 *
3160 * Author : SvL
3161 *****************************************************************************/
3162INT HMGetThreadPriority(HANDLE hThread)
3163{
3164 int iIndex; /* index into the handle table */
3165 INT lpResult; /* result from the device handler's API */
3166 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3167
3168 SetLastError(ERROR_SUCCESS);
3169 /* validate handle */
3170 iIndex = _HMHandleQuery(hThread); /* get the index */
3171 if (-1 == iIndex) /* error ? */
3172 {
3173 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3174 return (-1); /* signal failure */
3175 }
3176
3177 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3178 lpResult = pHMHandle->pDeviceHandler->GetThreadPriority(&TabWin32Handles[iIndex].hmHandleData);
3179
3180 return (lpResult); /* deliver return code */
3181}
3182/*****************************************************************************
3183 * Name : HMSuspendThread
3184 * Purpose : router function for SuspendThread
3185 * Parameters:
3186 * Variables :
3187 * Result :
3188 * Remark :
3189 * Status :
3190 *
3191 * Author : SvL
3192 *****************************************************************************/
3193DWORD HMSuspendThread(HANDLE hThread)
3194{
3195 int iIndex; /* index into the handle table */
3196 HANDLE lpResult; /* result from the device handler's API */
3197 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3198
3199 SetLastError(ERROR_SUCCESS);
3200 /* validate handle */
3201 iIndex = _HMHandleQuery(hThread); /* get the index */
3202 if (-1 == iIndex) /* error ? */
3203 {
3204 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3205 return -1; /* signal failure */
3206 }
3207
3208 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3209 lpResult = pHMHandle->pDeviceHandler->SuspendThread(&TabWin32Handles[iIndex].hmHandleData);
3210
3211 return (lpResult); /* deliver return code */
3212}
3213/*****************************************************************************
3214 * Name : HMSetThreadPriority
3215 * Purpose : router function for SetThreadPriority
3216 * Parameters:
3217 * Variables :
3218 * Result :
3219 * Remark :
3220 * Status :
3221 *
3222 * Author : SvL
3223 *****************************************************************************/
3224BOOL HMSetThreadPriority(HANDLE hThread, int priority)
3225{
3226 int iIndex; /* index into the handle table */
3227 BOOL lpResult; /* result from the device handler's API */
3228 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3229
3230 SetLastError(ERROR_SUCCESS);
3231 /* validate handle */
3232 iIndex = _HMHandleQuery(hThread); /* get the index */
3233 if (-1 == iIndex) /* error ? */
3234 {
3235 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3236 return FALSE; /* signal failure */
3237 }
3238
3239 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3240 lpResult = pHMHandle->pDeviceHandler->SetThreadPriority(&TabWin32Handles[iIndex].hmHandleData, priority);
3241
3242 return (lpResult); /* deliver return code */
3243}
3244/*****************************************************************************
3245 * Name : HMGetThreadContext
3246 * Purpose : router function for GetThreadContext
3247 * Parameters:
3248 * Variables :
3249 * Result :
3250 * Remark :
3251 * Status :
3252 *
3253 * Author : SvL
3254 *****************************************************************************/
3255BOOL HMGetThreadContext(HANDLE hThread, CONTEXT *lpContext)
3256{
3257 int iIndex; /* index into the handle table */
3258 BOOL lpResult; /* result from the device handler's API */
3259 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3260
3261 SetLastError(ERROR_SUCCESS);
3262 /* validate handle */
3263 iIndex = _HMHandleQuery(hThread); /* get the index */
3264 if (-1 == iIndex) /* error ? */
3265 {
3266 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3267 return FALSE; /* signal failure */
3268 }
3269
3270 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3271 lpResult = pHMHandle->pDeviceHandler->GetThreadContext(&TabWin32Handles[iIndex].hmHandleData, lpContext);
3272
3273 return (lpResult); /* deliver return code */
3274}
3275/*****************************************************************************
3276 * Name : HMSetThreadContext
3277 * Purpose : router function for SetThreadContext
3278 * Parameters:
3279 * Variables :
3280 * Result :
3281 * Remark :
3282 * Status :
3283 *
3284 * Author : SvL
3285 *****************************************************************************/
3286BOOL HMSetThreadContext(HANDLE hThread, const CONTEXT *lpContext)
3287{
3288 int iIndex; /* index into the handle table */
3289 BOOL lpResult; /* result from the device handler's API */
3290 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3291
3292 SetLastError(ERROR_SUCCESS);
3293 /* validate handle */
3294 iIndex = _HMHandleQuery(hThread); /* get the index */
3295 if (-1 == iIndex) /* error ? */
3296 {
3297 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3298 return FALSE; /* signal failure */
3299 }
3300
3301 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3302 lpResult = pHMHandle->pDeviceHandler->SetThreadContext(&TabWin32Handles[iIndex].hmHandleData, lpContext);
3303
3304 return (lpResult); /* deliver return code */
3305}
3306/*****************************************************************************
3307 * Name : HMTerminateThread
3308 * Purpose : router function for TerminateThread
3309 * Parameters:
3310 * Variables :
3311 * Result :
3312 * Remark :
3313 * Status :
3314 *
3315 * Author : SvL
3316 *****************************************************************************/
3317BOOL HMTerminateThread(HANDLE hThread, DWORD exitcode)
3318{
3319 int iIndex; /* index into the handle table */
3320 BOOL lpResult; /* result from the device handler's API */
3321 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3322
3323 SetLastError(ERROR_SUCCESS);
3324 /* validate handle */
3325 iIndex = _HMHandleQuery(hThread); /* get the index */
3326 if (-1 == iIndex) /* error ? */
3327 {
3328 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3329 return FALSE; /* signal failure */
3330 }
3331
3332 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3333 lpResult = pHMHandle->pDeviceHandler->TerminateThread(&TabWin32Handles[iIndex].hmHandleData, exitcode);
3334
3335 return (lpResult); /* deliver return code */
3336}
3337/*****************************************************************************
3338 * Name : HMResumeThread
3339 * Purpose : router function for ResumeThread
3340 * Parameters:
3341 * Variables :
3342 * Result :
3343 * Remark :
3344 * Status :
3345 *
3346 * Author : SvL
3347 *****************************************************************************/
3348DWORD HMResumeThread(HANDLE hThread)
3349{
3350 int iIndex; /* index into the handle table */
3351 DWORD lpResult; /* result from the device handler's API */
3352 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3353
3354 SetLastError(ERROR_SUCCESS);
3355 /* validate handle */
3356 iIndex = _HMHandleQuery(hThread); /* get the index */
3357 if (-1 == iIndex) /* error ? */
3358 {
3359 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3360 return -1; /* signal failure */
3361 }
3362
3363 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3364 lpResult = pHMHandle->pDeviceHandler->ResumeThread(&TabWin32Handles[iIndex].hmHandleData);
3365
3366 return (lpResult); /* deliver return code */
3367}
3368
3369/*****************************************************************************
3370 * Name : HMGetExitCodeThread
3371 * Purpose : router function for GetExitCodeThread
3372 * Parameters:
3373 * Variables :
3374 * Result :
3375 * Remark :
3376 * Status :
3377 *
3378 * Author : SvL
3379 *****************************************************************************/
3380BOOL HMGetExitCodeThread(HANDLE hThread, LPDWORD lpExitCode)
3381{
3382 int iIndex; /* index into the handle table */
3383 BOOL lpResult; /* result from the device handler's API */
3384 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3385
3386 SetLastError(ERROR_SUCCESS);
3387 /* validate handle */
3388 iIndex = _HMHandleQuery(hThread); /* get the index */
3389 if (-1 == iIndex) /* error ? */
3390 {
3391 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3392 return FALSE; /* signal failure */
3393 }
3394
3395 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3396 lpResult = pHMHandle->pDeviceHandler->GetExitCodeThread(&TabWin32Handles[iIndex].hmHandleData, lpExitCode);
3397
3398 return (lpResult); /* deliver return code */
3399}
3400/*****************************************************************************
3401 * Name : HMSetThreadTerminated
3402 * Purpose :
3403 * Parameters:
3404 * Variables :
3405 * Result :
3406 * Remark :
3407 * Status :
3408 *
3409 * Author : SvL
3410 *****************************************************************************/
3411BOOL HMSetThreadTerminated(HANDLE hThread)
3412{
3413 int iIndex; /* index into the handle table */
3414 BOOL lpResult; /* result from the device handler's API */
3415 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3416
3417 SetLastError(ERROR_SUCCESS);
3418 /* validate handle */
3419 iIndex = _HMHandleQuery(hThread); /* get the index */
3420 if (-1 == iIndex) /* error ? */
3421 {
3422 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3423 return FALSE; /* signal failure */
3424 }
3425
3426 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3427 lpResult = pHMHandle->pDeviceHandler->SetThreadTerminated(&TabWin32Handles[iIndex].hmHandleData);
3428
3429 return (lpResult); /* deliver return code */
3430}
3431
3432/*****************************************************************************
3433 * Name : HMPeekNamedPipe
3434 * Purpose :
3435 * Parameters:
3436 * Variables :
3437 * Result :
3438 * Remark :
3439 * Status :
3440 *
3441 * Author : Przemyslaw Dobrowolski
3442 *****************************************************************************/
3443BOOL HMPeekNamedPipe(HANDLE hPipe,
3444 LPVOID lpvBuffer,
3445 DWORD cbBuffer,
3446 LPDWORD lpcbRead,
3447 LPDWORD lpcbAvail,
3448 LPDWORD lpcbMessage)
3449{
3450 int iIndex; /* index into the handle table */
3451 BOOL lpResult; /* result from the device handler's API */
3452 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3453
3454 SetLastError(ERROR_SUCCESS);
3455 /* validate handle */
3456 iIndex = _HMHandleQuery(hPipe); /* get the index */
3457 if (-1 == iIndex) /* error ? */
3458 {
3459 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3460 return FALSE; /* signal failure */
3461 }
3462
3463 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3464 lpResult = pHMHandle->pDeviceHandler->PeekNamedPipe(&TabWin32Handles[iIndex].hmHandleData,
3465 lpvBuffer,
3466 cbBuffer,
3467 lpcbRead,
3468 lpcbAvail,
3469 lpcbMessage);
3470
3471 return (lpResult); /* deliver return code */
3472}
3473
3474/*****************************************************************************
3475 * Name : HMCreateNamedPipe
3476 * Purpose :
3477 * Parameters:
3478 * Variables :
3479 * Result :
3480 * Remark :
3481 * Status :
3482 *
3483 * Author : Przemyslaw Dobrowolski
3484 *****************************************************************************/
3485DWORD HMCreateNamedPipe(LPCTSTR lpName,
3486 DWORD dwOpenMode,
3487 DWORD dwPipeMode,
3488 DWORD nMaxInstances,
3489 DWORD nOutBufferSize,
3490 DWORD nInBufferSize,
3491 DWORD nDefaultTimeOut,
3492 LPSECURITY_ATTRIBUTES lpSecurityAttributes)
3493{
3494 int iIndex; /* index into the handle table */
3495 int iIndexNew; /* index into the handle table */
3496 HMDeviceHandler *pDeviceHandler; /* device handler for this handle */
3497 PHMHANDLEDATA pHMHandleData;
3498 HANDLE rc; /* API return code */
3499
3500 SetLastError(ERROR_SUCCESS);
3501
3502 pDeviceHandler = HMGlobals.pHMNamedPipe; /* device is predefined */
3503
3504 iIndexNew = _HMHandleGetFree(); /* get free handle */
3505 if (-1 == iIndexNew) /* oops, no free handles ! */
3506 {
3507 SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
3508 return 0;
3509 }
3510
3511 /* initialize the complete HMHANDLEDATA structure */
3512 pHMHandleData = &TabWin32Handles[iIndexNew].hmHandleData;
3513 pHMHandleData->dwType = FILE_TYPE_PIPE;
3514 pHMHandleData->dwAccess = 0;
3515 pHMHandleData->dwShare = 0;
3516 pHMHandleData->dwCreation = 0;
3517 pHMHandleData->dwFlags = 0;
3518 pHMHandleData->lpHandlerData = NULL;
3519
3520 /* we've got to mark the handle as occupied here, since another device */
3521 /* could be created within the device handler -> deadlock */
3522
3523 /* write appropriate entry into the handle table if open succeeded */
3524 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = iIndexNew;
3525 TabWin32Handles[iIndexNew].pDeviceHandler = pDeviceHandler;
3526
3527 /* call the device handler */
3528
3529 rc = pDeviceHandler->CreateNamedPipe(&TabWin32Handles[iIndexNew].hmHandleData,
3530 lpName,dwOpenMode,
3531 dwPipeMode,nMaxInstances,
3532 nOutBufferSize,nInBufferSize,
3533 nDefaultTimeOut,lpSecurityAttributes);
3534
3535 if (rc == 0) /* oops, creation failed within the device handler */
3536 {
3537 TabWin32Handles[iIndexNew].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
3538 return 0; /* signal error */
3539 }
3540
3541 dprintf(("Win32 Handle -> %08x",iIndexNew));
3542
3543 return iIndexNew;
3544}
3545
3546/*****************************************************************************
3547 * Name : HMConnectNamedPipe
3548 * Purpose :
3549 * Parameters:
3550 * Variables :
3551 * Result :
3552 * Remark :
3553 * Status :
3554 *
3555 * Author : Przemyslaw Dobrowolski
3556 *****************************************************************************/
3557BOOL HMConnectNamedPipe(HANDLE hPipe, LPOVERLAPPED lpOverlapped)
3558{
3559 int iIndex; /* index into the handle table */
3560 BOOL lpResult; /* result from the device handler's API */
3561 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3562
3563 SetLastError(ERROR_SUCCESS);
3564 /* validate handle */
3565 iIndex = _HMHandleQuery(hPipe); /* get the index */
3566 if (-1 == iIndex) /* error ? */
3567 {
3568 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3569 return FALSE; /* signal failure */
3570 }
3571
3572 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3573 lpResult = pHMHandle->pDeviceHandler->ConnectNamedPipe(&TabWin32Handles[iIndex].hmHandleData,
3574 lpOverlapped);
3575
3576 return (lpResult); /* deliver return code */
3577}
3578
3579/*****************************************************************************
3580 * Name : HMDisconnectNamedPipe
3581 * Purpose :
3582 * Parameters:
3583 * Variables :
3584 * Result :
3585 * Remark :
3586 * Status :
3587 *
3588 * Author : Przemyslaw Dobrowolski
3589 *****************************************************************************/
3590BOOL HMDisconnectNamedPipe(HANDLE hPipe)
3591{
3592 int iIndex; /* index into the handle table */
3593 BOOL lpResult; /* result from the device handler's API */
3594 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3595
3596 SetLastError(ERROR_SUCCESS);
3597 /* validate handle */
3598 iIndex = _HMHandleQuery(hPipe); /* get the index */
3599 if (-1 == iIndex) /* error ? */
3600 {
3601 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3602 return FALSE; /* signal failure */
3603 }
3604
3605 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3606 lpResult = pHMHandle->pDeviceHandler->DisconnectNamedPipe(&TabWin32Handles[iIndex].hmHandleData);
3607
3608 return (lpResult); /* deliver return code */
3609}
3610
3611/*****************************************************************************
3612 * Name : HMGetNamedPipeHandleState
3613 * Purpose :
3614 * Parameters:
3615 * Variables :
3616 * Result :
3617 * Remark :
3618 * Status :
3619 *
3620 * Author : Przemyslaw Dobrowolski
3621 *****************************************************************************/
3622BOOL HMGetNamedPipeHandleState(HANDLE hPipe,
3623 LPDWORD lpState,
3624 LPDWORD lpCurInstances,
3625 LPDWORD lpMaxCollectionCount,
3626 LPDWORD lpCollectDataTimeout,
3627 LPTSTR lpUserName,
3628 DWORD nMaxUserNameSize)
3629{
3630 int iIndex; /* index into the handle table */
3631 BOOL lpResult; /* result from the device handler's API */
3632 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3633
3634 SetLastError(ERROR_SUCCESS);
3635 /* validate handle */
3636 iIndex = _HMHandleQuery(hPipe); /* get the index */
3637 if (-1 == iIndex) /* error ? */
3638 {
3639 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3640 return FALSE; /* signal failure */
3641 }
3642
3643 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3644 lpResult = pHMHandle->pDeviceHandler->GetNamedPipeHandleState(&TabWin32Handles[iIndex].hmHandleData,
3645 lpState,
3646 lpCurInstances,
3647 lpMaxCollectionCount,
3648 lpCollectDataTimeout,
3649 lpUserName,
3650 nMaxUserNameSize);
3651
3652
3653 return (lpResult); /* deliver return code */
3654}
3655
3656/*****************************************************************************
3657 * Name : HMGetNamedPipeInfo
3658 * Purpose :
3659 * Parameters:
3660 * Variables :
3661 * Result :
3662 * Remark :
3663 * Status :
3664 *
3665 * Author : Przemyslaw Dobrowolski
3666 *****************************************************************************/
3667BOOL HMGetNamedPipeInfo(HANDLE hPipe,
3668 LPDWORD lpFlags,
3669 LPDWORD lpOutBufferSize,
3670 LPDWORD lpInBufferSize,
3671 LPDWORD lpMaxInstances)
3672{
3673 int iIndex; /* index into the handle table */
3674 BOOL lpResult; /* result from the device handler's API */
3675 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3676
3677 SetLastError(ERROR_SUCCESS);
3678 /* validate handle */
3679 iIndex = _HMHandleQuery(hPipe); /* get the index */
3680 if (-1 == iIndex) /* error ? */
3681 {
3682 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3683 return FALSE; /* signal failure */
3684 }
3685
3686 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3687 lpResult = pHMHandle->pDeviceHandler->GetNamedPipeInfo(&TabWin32Handles[iIndex].hmHandleData,
3688 lpFlags,
3689 lpOutBufferSize,
3690 lpInBufferSize,
3691 lpMaxInstances);
3692
3693 return (lpResult); /* deliver return code */
3694}
3695
3696/*****************************************************************************
3697 * Name : HMTransactNamedPipe
3698 * Purpose :
3699 * Parameters:
3700 * Variables :
3701 * Result :
3702 * Remark :
3703 * Status :
3704 *
3705 * Author : Przemyslaw Dobrowolski
3706 *****************************************************************************/
3707DWORD HMTransactNamedPipe(HANDLE hPipe,
3708 LPVOID lpvWriteBuf,
3709 DWORD cbWriteBuf,
3710 LPVOID lpvReadBuf,
3711 DWORD cbReadBuf,
3712 LPDWORD lpcbRead,
3713 LPOVERLAPPED lpo)
3714{
3715 int iIndex; /* index into the handle table */
3716 DWORD lpResult; /* result from the device handler's API */
3717 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3718
3719 SetLastError(ERROR_SUCCESS);
3720 /* validate handle */
3721 iIndex = _HMHandleQuery(hPipe); /* get the index */
3722 if (-1 == iIndex) /* error ? */
3723 {
3724 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3725 return FALSE; /* signal failure */
3726 }
3727
3728 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3729 lpResult = pHMHandle->pDeviceHandler->TransactNamedPipe(&TabWin32Handles[iIndex].hmHandleData,
3730 lpvWriteBuf,
3731 cbWriteBuf,
3732 lpvReadBuf,
3733 cbReadBuf,
3734 lpcbRead,
3735 lpo);
3736
3737 return (lpResult); /* deliver return code */
3738}
3739
3740/*****************************************************************************
3741 * Name : HMSetNamedPipeHandleState
3742 * Purpose :
3743 * Parameters:
3744 * Variables :
3745 * Result :
3746 * Remark :
3747 * Status :
3748 *
3749 * Author : Przemyslaw Dobrowolski
3750 *****************************************************************************/
3751BOOL HMSetNamedPipeHandleState(HANDLE hPipe,
3752 LPDWORD lpdwMode,
3753 LPDWORD lpcbMaxCollect,
3754 LPDWORD lpdwCollectDataTimeout)
3755{
3756 int iIndex; /* index into the handle table */
3757 BOOL lpResult; /* result from the device handler's API */
3758 PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
3759
3760 SetLastError(ERROR_SUCCESS);
3761 /* validate handle */
3762 iIndex = _HMHandleQuery(hPipe); /* get the index */
3763 if (-1 == iIndex) /* error ? */
3764 {
3765 SetLastError(ERROR_INVALID_HANDLE); /* set win32 error information */
3766 return FALSE; /* signal failure */
3767 }
3768
3769 pHMHandle = &TabWin32Handles[iIndex]; /* call device handler */
3770 lpResult = pHMHandle->pDeviceHandler->SetNamedPipeHandleState(&TabWin32Handles[iIndex].hmHandleData,
3771 lpdwMode,
3772 lpcbMaxCollect,
3773 lpdwCollectDataTimeout);
3774
3775 return (lpResult); /* deliver return code */
3776}
3777
3778/*****************************************************************************
3779 * Name : HMCreatePipe
3780 * Purpose :
3781 * Parameters:
3782 * Variables :
3783 * Result :
3784 * Remark :
3785 * Status : NOT TESTED!
3786 *
3787 * Author : Przemyslaw Dobrowolski
3788 *****************************************************************************/
3789BOOL HMCreatePipe(PHANDLE phRead,
3790 PHANDLE phWrite,
3791 LPSECURITY_ATTRIBUTES lpsa,
3792 DWORD cbPipe)
3793{
3794 int iIndex; /* index into the handle table */
3795 int iIndexNewRead; /* index into the handle table */
3796 int iIndexNewWrite; /* index into the handle table */
3797 HMDeviceHandler *pDeviceHandler; /* device handler for this handle */
3798 PHMHANDLEDATA pHMHandleData;
3799 HANDLE rc; /* API return code */
3800
3801 SetLastError(ERROR_SUCCESS);
3802
3803 pDeviceHandler = HMGlobals.pHMNamedPipe; /* device is predefined */
3804
3805 iIndexNewRead = _HMHandleGetFree(); /* get free handle */
3806 if (-1 == iIndexNewRead) /* oops, no free handles ! */
3807 {
3808 SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
3809 return 0;
3810 }
3811
3812 iIndexNewWrite = _HMHandleGetFree(); /* get free handle */
3813 if (-1 == iIndexNewWrite) /* oops, no free handles ! */
3814 {
3815 SetLastError(ERROR_NOT_ENOUGH_MEMORY); /* use this as error message */
3816 return 0;
3817 }
3818
3819
3820 /* initialize the complete HMHANDLEDATA structure */
3821 pHMHandleData = &TabWin32Handles[iIndexNewRead].hmHandleData;
3822 pHMHandleData->dwType = FILE_TYPE_PIPE;
3823 pHMHandleData->dwAccess = 0;
3824 pHMHandleData->dwShare = 0;
3825 pHMHandleData->dwCreation = 0;
3826 pHMHandleData->dwFlags = 0;
3827 pHMHandleData->lpHandlerData = NULL;
3828
3829 /* we've got to mark the handle as occupied here, since another device */
3830 /* could be created within the device handler -> deadlock */
3831
3832 /* write appropriate entry into the handle table if open succeeded */
3833 TabWin32Handles[iIndexNewRead].hmHandleData.hHMHandle = iIndexNewRead;
3834 TabWin32Handles[iIndexNewRead].pDeviceHandler = pDeviceHandler;
3835
3836 /* initialize the complete HMHANDLEDATA structure */
3837 pHMHandleData = &TabWin32Handles[iIndexNewWrite].hmHandleData;
3838 pHMHandleData->dwType = FILE_TYPE_PIPE;
3839 pHMHandleData->dwAccess = 0;
3840 pHMHandleData->dwShare = 0;
3841 pHMHandleData->dwCreation = 0;
3842 pHMHandleData->dwFlags = 0;
3843 pHMHandleData->lpHandlerData = NULL;
3844
3845 /* we've got to mark the handle as occupied here, since another device */
3846 /* could be created within the device handler -> deadlock */
3847
3848 /* write appropriate entry into the handle table if open succeeded */
3849 TabWin32Handles[iIndexNewWrite].hmHandleData.hHMHandle = iIndexNewWrite;
3850 TabWin32Handles[iIndexNewWrite].pDeviceHandler = pDeviceHandler;
3851 /* call the device handler */
3852
3853 rc = pDeviceHandler->CreatePipe(&TabWin32Handles[iIndexNewRead].hmHandleData,
3854 &TabWin32Handles[iIndexNewWrite].hmHandleData,
3855 lpsa,
3856 cbPipe);
3857
3858 if (rc == 0) /* oops, creation failed within the device handler */
3859 {
3860 TabWin32Handles[iIndexNewRead].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
3861 TabWin32Handles[iIndexNewWrite].hmHandleData.hHMHandle = INVALID_HANDLE_VALUE;
3862 return FALSE; /* signal error */
3863 }
3864
3865 *phRead = iIndexNewRead;
3866 *phWrite = iIndexNewWrite;
3867
3868 return TRUE;
3869}
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