| 1 | /* $Id: d32Win32kOpenClose.c,v 1.1 2001-07-08 02:53:18 bird Exp $
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| 2 | *
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| 3 | * Open and Close handlers for the Win32k driver.
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| 4 | *
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| 5 | * Copyright (c) 2001 knut st. osmundsen (kosmunds@csc.no)
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| 6 | *
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| 7 | * Project Odin Software License can be found in LICENSE.TXT
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| 8 | *
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| 9 | */
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| 10 |
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| 11 |
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| 12 | /*******************************************************************************
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| 13 | * Defined Constants And Macros *
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| 14 | *******************************************************************************/
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| 15 | #define INCL_DOSERRORS
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| 16 | #define INCL_NOPMAPI
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| 17 | #define INCL_OS2KRNL_TK
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| 18 | #define INCL_OS2KRNL_PTDA
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| 19 |
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| 20 | #define NO_WIN32K_LIB_FUNCTIONS
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| 21 |
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| 22 |
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| 23 | /*******************************************************************************
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| 24 | * Header Files *
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| 25 | *******************************************************************************/
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| 26 | #include <os2.h>
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| 27 |
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| 28 | #include "devSegDf.h"
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| 29 | #include "dev32hlp.h"
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| 30 | #include "dev1632.h"
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| 31 | #include "dev32.h"
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| 32 | #include "OS2Krnl.h"
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| 33 | #include "Win32k.h"
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| 34 | #include "log.h"
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| 35 | #include "asmutils.h"
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| 36 | #include "avl.h"
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| 37 | #include "PerTaskW32kData.h"
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| 38 |
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| 39 |
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| 40 | /*******************************************************************************
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| 41 | * Internal Functions *
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| 42 | *******************************************************************************/
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| 43 |
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| 44 |
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| 45 | /**
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| 46 | * Open handler.
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| 47 | * Make sure there is a task data structure.
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| 48 | * @returns Strategy return status.
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| 49 | * @param pRpOpen Pointer to request packet.
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| 50 | * @author knut st. osmundsen (kosmunds@csc.no)
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| 51 | */
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| 52 | USHORT _loadds _Far32 _Pascal Win32kOpen(PRP32OPENCLOSE pRpOpen)
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| 53 | {
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| 54 | PPTD pptd = GetTaskData(0);
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| 55 | if (pptd)
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| 56 | pptd->cUsage++;
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| 57 |
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| 58 | pRpOpen = pRpOpen;
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| 59 | return STATUS_DONE;
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| 60 | }
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| 61 |
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| 62 |
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| 63 | /**
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| 64 | * Close handler.
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| 65 | * Cleanup task data structure.
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| 66 | * @returns Strategy return status.
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| 67 | * @param pRpOpen Pointer to request packet.
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| 68 | * @author knut st. osmundsen (kosmunds@csc.no)
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| 69 | */
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| 70 | USHORT _loadds _Far32 _Pascal Win32kClose(PRP32OPENCLOSE pRpClose)
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| 71 | {
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| 72 | PPTD pptd = GetTaskData(0);
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| 73 | if (pptd)
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| 74 | {
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| 75 | if (pptd->cUsage > 0)
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| 76 | {
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| 77 | APIRET rc;
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| 78 | if ( pptd->pszzOdin32Env != NULL
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| 79 | && (rc = D32Hlp_VMUnLock(&pptd->lockOdin32Env)) != NO_ERROR
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| 80 | )
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| 81 | {
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| 82 | kprintf(("Win32kClose: VMUnLock failed with rc=%d\n", rc));
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| 83 | }
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| 84 | pptd->cUsage--;
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| 85 | }
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| 86 | if (pptd->cUsage == 0)
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| 87 | RemoveTaskData(0);
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| 88 | }
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| 89 | pRpClose = pRpClose;
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| 90 | return STATUS_DONE;
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| 91 | }
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| 92 |
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