imthread.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 70 行

/****************************************************************************
*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
*    Public License version 1.0 (the 'License'). You may not use this file
*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
*    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
*    provided with the Original Code and Modifications, and is also
*    available at www.sybase.com/developer/opensource.
*
*    The Original Code and all software distributed under the License are
*    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
*    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
*    ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
*    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
*    NON-INFRINGEMENT. Please see the License for the specific language
*    governing rights and limitations under the License.
*
*  ========================================================================
*
* Description:  Module to init multi-threading initialization.
*
****************************************************************************/


#include "variety.h"
#include "rtinit.h"

#if defined(__NT__)
  extern unsigned __NTThreadInit( void );
#elif defined (_NETWARE_LIBC)
  extern unsigned __LibCThreadInit( void );
#elif defined(__QNX__)
#elif defined(__LINUX__)
#elif defined(__WARP__)
  extern void *__InitThreadProcessing( void );
#endif
#if defined(__OS2_286__) || defined(__NETWARE__)
    #if defined(__SW_BM)
        int __imthread;
    #endif
#else
    extern void __InitMultipleThread( void );

    static void __imthread_fn( void ) {
        #if defined(__NT__)
            if( !__NTThreadInit() ) return;
        #elif defined(_NETWARE_LIB)
            if( !__LibCThreadInit() ) return;
        #elif defined(__QNX__)
        #elif defined(__LINUX__)
        #elif defined(__WARP__)
            if( __InitThreadProcessing() == 0 ) return;
        #endif
        __InitMultipleThread();
    }

    _WCRTDATA XI( __imthread, __imthread_fn, INIT_PRIORITY_RUNTIME + 1 )
#endif

#if defined(_M_IX86)
  #pragma aux __imthread "*";
#endif