| Last change
 on this file since 21718 was             8203, checked in by sandervl, 24 years ago | 
        
          | 
use critical sections in vmutex; change global vmutex in mmap to use a shared critical section
 | 
        
          | File size:
            1.4 KB | 
      
      
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| 1 | /* $Id: vmutex.cpp,v 1.10 2002-04-07 15:44:11 sandervl Exp $ */ | 
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| 2 |  | 
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| 3 | /* | 
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| 4 | * Mutex class | 
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| 5 | * | 
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| 6 | * Copyright 1998-2000 Sander van Leeuwen (sandervl@xs4all.nl) | 
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| 7 | * | 
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| 8 | * | 
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| 9 | * NOTE: When creating a shared mutex object, you must call the ctor, enter & | 
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| 10 | *       leave with a 2nd parameter (HMTX *). This mutex handle must be located | 
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| 11 | *       in the local data segment of the dll. | 
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| 12 | *       This enables other processes than the one that created the mutex object | 
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| 13 | *       to access it | 
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| 14 | * | 
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| 15 | * Project Odin Software License can be found in LICENSE.TXT | 
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| 16 | * | 
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| 17 | */ | 
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| 18 | #define INCL_DOSSEMAPHORES | 
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| 19 | #define INCL_DOSERRORS | 
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| 20 | #include <os2wrap.h>    //Odin32 OS/2 api wrappers | 
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| 21 | #include <win32type.h> | 
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| 22 | #include <vmutex.h> | 
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| 23 | #include <odincrt.h> | 
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| 24 | #include <misc.h> | 
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| 25 |  | 
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| 26 | #define DBG_LOCALLOG    DBG_vmutex | 
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| 27 | #include "dbglocal.h" | 
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| 28 |  | 
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| 29 | /******************************************************************************/ | 
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| 30 | /******************************************************************************/ | 
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| 31 | VMutex::VMutex() | 
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| 32 | { | 
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| 33 | DosInitializeCriticalSection(&critsect, NULL); | 
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| 34 | } | 
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| 35 | /******************************************************************************/ | 
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| 36 | /******************************************************************************/ | 
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| 37 | VMutex::~VMutex() | 
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| 38 | { | 
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| 39 | DosDeleteCriticalSection(&critsect); | 
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| 40 | } | 
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| 41 | /******************************************************************************/ | 
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| 42 | /******************************************************************************/ | 
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| 43 |  | 
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