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1.1 root 1: /* threadwrap.h */
2:
3: /* Thread-related cross-platform development wrappers */
4:
5: /* $Id: threadwrap.h,v 1.27 2004/11/05 01:35:08 rswindell Exp $ */
6:
7: /****************************************************************************
8: * @format.tab-size 4 (Plain Text/Source Code File Header) *
9: * @format.use-tabs true (see http://www.synchro.net/ptsc_hdr.html) *
10: * *
11: * Copyright 2003 Rob Swindell - http://www.synchro.net/copyright.html *
12: * *
13: * This library is free software; you can redistribute it and/or *
14: * modify it under the terms of the GNU Lesser General Public License *
15: * as published by the Free Software Foundation; either version 2 *
16: * of the License, or (at your option) any later version. *
17: * See the GNU Lesser General Public License for more details: lgpl.txt or *
18: * http://www.fsf.org/copyleft/lesser.html *
19: * *
20: * Anonymous FTP access to the most recent released source is available at *
21: * ftp://vert.synchro.net, ftp://cvs.synchro.net and ftp://ftp.synchro.net *
22: * *
23: * Anonymous CVS access to the development source and modification history *
24: * is available at cvs.synchro.net:/cvsroot/sbbs, example: *
25: * cvs -d :pserver:[email protected]:/cvsroot/sbbs login *
26: * (just hit return, no password is necessary) *
27: * cvs -d :pserver:[email protected]:/cvsroot/sbbs checkout src *
28: * *
29: * For Synchronet coding style and modification guidelines, see *
30: * http://www.synchro.net/source.html *
31: * *
32: * You are encouraged to submit any modifications (preferably in Unix diff *
33: * format) via e-mail to [email protected] *
34: * *
35: * Note: If this box doesn't appear square, then you need to fix your tabs. *
36: ****************************************************************************/
37:
38: #ifndef _THREADWRAP_H
39: #define _THREADWRAP_H
40:
41: #include "gen_defs.h" /* HANDLE */
42: #include "wrapdll.h" /* DLLEXPORT and DLLCALL */
43:
44: #if defined(__cplusplus)
45: extern "C" {
46: #endif
47:
48: #if defined(__unix__)
49:
50: #include <sys/param.h>
51: #include <pthread.h> /* POSIX threads and mutexes */
52:
53: /* Win32 thread API wrappers */
54: ulong _beginthread(void( *start_address )( void * )
55: ,unsigned stack_size, void *arglist);
56:
57: #define GetCurrentThreadId() pthread_self()
58:
59: #elif defined(_WIN32)
60:
61: #include <process.h> /* _beginthread */
62: #include <limits.h> /* INT_MAX */
63: #include <errno.h> /* EAGAIN and EBUSY */
64:
65: /* POSIX threads */
66: typedef DWORD pthread_t;
67: #define pthread_self() GetCurrentThreadId()
68:
69: /* POSIX mutexes */
70: #if 1 /* Implemented as Win32 Critical Sections */
71: typedef CRITICAL_SECTION pthread_mutex_t;
72: #define pthread_mutex_init(pmtx,v) InitializeCriticalSection(pmtx),0
73: #define pthread_mutex_lock(pmtx) EnterCriticalSection(pmtx),0
74: #define pthread_mutex_unlock(pmtx) LeaveCriticalSection(pmtx),0
75: #define pthread_mutex_destroy(pmtx) DeleteCriticalSection(pmtx),0
76: /* TryEnterCriticalSection only available on NT4+ :-( */
77: #define pthread_mutex_trylock(pmtx) (TryEnterCriticalSection(pmtx)?0:EBUSY)
78:
79: #else /* Implemented as Win32 Mutexes (much slower) */
80: typedef HANDLE pthread_mutex_t;
81: #define PTHREAD_MUTEX_INITIALIZER CreateMutex(NULL,FALSE,NULL)
82: #define pthread_mutex_init(pmtx,v) (*(pmtx)=CreateMutex(NULL,FALSE,NULL))==NULL?-1:0)
83: #define pthread_mutex_lock(pmtx) (WaitForSingleObject(*(pmtx),INFINITE)==WAIT_OBJECT_0?0:EBUSY)
84: #define pthread_mutex_unlock(pmtx) (ReleaseMutex(*(pmtx))?0:GetLastError())
85: #define pthread_mutex_destroy(pmtx) (CloseHandle(*(pmtx))?0:GetLastError())
86: #define pthread_mutex_trylock(pmtx) (WaitForSingleObject(*(pmtx),0)==WAIT_OBJECT_0?0:EBUSY)
87: #endif
88:
89: #elif defined(__OS2__) /* These have *not* been tested! */
90:
91: /* POSIX mutexes */
92: typedef HEV pthread_mutex_t;
93: #define pthread_mutex_init(pmtx,v) DosCreateMutexSem(NULL,pmtx,0,0)
94: #define pthread_mutex_lock(pmtx) DosRequestMutexSem(*(psem),-1)
95: #define pthread_mutex_unlock(pmtx) DosReleaseMutexSem(*(psem))
96: #define pthread_mutex_destroy(pmtx) DosCloseMutexSem(*(psem))
97:
98: #else
99:
100: #error "Need thread wrappers."
101:
102: #endif
103:
104: #if defined(__cplusplus)
105: }
106: #endif
107:
108: #include "semwrap.h"
109:
110: #endif /* Don't add anything after this line */
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