| 1 | /* $Id: async.cpp,v 1.11 2001-12-05 14:15:56 sandervl Exp $ */
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| 2 |
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| 3 | /*
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| 4 | * Win32 Asynchronous I/O Subsystem for OS/2
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| 5 | *
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| 6 | * 1998/04/10 PH Patrick Haller (haller@zebra.fh-weingarten.de)
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| 7 | *
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| 8 | * @(#) Async.Cpp 1.0.0 1998/04/10 PH start
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| 9 | *
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| 10 | * Project Odin Software License can be found in LICENSE.TXT
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| 11 | *
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| 12 | */
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| 13 |
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| 14 |
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| 15 | /*****************************************************************************
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| 16 | * Remark *
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| 17 | *****************************************************************************
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| 18 |
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| 19 | */
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| 20 |
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| 21 |
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| 22 |
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| 23 | /*****************************************************************************
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| 24 | * Includes *
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| 25 | *****************************************************************************/
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| 26 |
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| 27 | #define INCL_WIN
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| 28 | #define INCL_DOSMEMMGR
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| 29 | #define INCL_DOSSEMAPHORES
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| 30 | #define INCL_DOSERRORS
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| 31 | #define INCL_DOSPROCESS
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| 32 | #define INCL_DOSMODULEMGR
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| 33 | #define INCL_VIO
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| 34 | #define INCL_AVIO
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| 35 | #include <os2wrap.h> //Odin32 OS/2 api wrappers
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| 36 |
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| 37 | #include <stdlib.h>
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| 38 | #include <string.h>
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| 39 | #include "win32type.h"
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| 40 | #include "misc.h"
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| 41 | #include "unicode.h"
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| 42 |
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| 43 | #include "conwin.h" // Windows Header for console only
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| 44 | #include "handlemanager.h"
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| 45 |
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| 46 | #define DBG_LOCALLOG DBG_async
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| 47 | #include "dbglocal.h"
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| 48 |
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| 49 |
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| 50 | /*****************************************************************************
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| 51 | * Defines & Macros *
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| 52 | *****************************************************************************/
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| 53 |
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| 54 |
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| 55 | /*****************************************************************************
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| 56 | * Structures *
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| 57 | *****************************************************************************/
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| 58 |
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| 59 | typedef struct _IORequest
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| 60 | {
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| 61 | struct _IORequest *pNext; /* pointer to next I/O request */
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| 62 |
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| 63 | APIRET rc; /* result code of I/O request */
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| 64 |
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| 65 | } IOREQUEST, *PIOREQUEST;
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| 66 |
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| 67 |
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| 68 | typedef struct _Globals
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| 69 | {
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| 70 | HEV hevIOEvent; /* asynchronous I/O event completed ! */
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| 71 | TID tidIO; /* I/O thread */
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| 72 | } GLOBALS, *PGLOBALS;
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| 73 |
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| 74 | static GLOBALS Globals;
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| 75 |
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| 76 | /*****************************************************************************
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| 77 | * Name :
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| 78 | * Purpose :
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| 79 | * Parameters:
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| 80 | * Variables :
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| 81 | * Result :
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| 82 | * Remark :
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| 83 | * Status :
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| 84 | *
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| 85 | * Author : Patrick Haller [Tue, 1998/02/10 01:55]
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| 86 | *****************************************************************************/
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| 87 |
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| 88 | DWORD WIN32API SleepEx(DWORD dwTimeout,
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| 89 | BOOL fAlertable)
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| 90 | {
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| 91 |
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| 92 | dprintf(("KERNEL32: SleepEx(%u,%u)\n",
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| 93 | dwTimeout,
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| 94 | fAlertable));
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| 95 |
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| 96 | /* @@@PH could be implemented as a timed wait on a event semaphore */
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| 97 | /* for the WAIT_IO_COMPLETION flag */
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| 98 |
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| 99 | if (fAlertable == FALSE)
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| 100 | DosSleep(dwTimeout);
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| 101 | else {
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| 102 | dprintf(("SleepEx: Wait for io completion not supported!"));
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| 103 | DosSleep(1);
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| 104 | }
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| 105 |
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| 106 | return (0);
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| 107 | }
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| 108 |
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| 109 | /*****************************************************************************
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| 110 | *****************************************************************************/
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| 111 | BOOL WIN32API SwitchToThread(void)
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| 112 | {
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| 113 | // It's not clear from CPREF, if DosSleep(1) can allow a switch to another
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| 114 | // CPU, so there is no guarantee of the 100% functional equality
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| 115 | dprintf(("SwitchToThread: not fully supported!"));
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| 116 | APIRET rc = DosSleep(1);
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| 117 | return rc == NO_ERROR;
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| 118 | }
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