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137 lines
4.5 KiB
C
137 lines
4.5 KiB
C
/*
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* msvcrt.dll thread functions
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*
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* Copyright 2000 Jon Griffiths
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "msvcrt.h"
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#include "msvcrt/malloc.h"
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#include "msvcrt/process.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
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/********************************************************************/
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typedef struct {
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_beginthread_start_routine_t start_address;
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void *arglist;
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} _beginthread_trampoline_t;
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/*********************************************************************
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* msvcrt_get_thread_data
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*
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* Return the thread local storage structure.
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*/
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MSVCRT_thread_data *msvcrt_get_thread_data(void)
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{
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MSVCRT_thread_data *ptr;
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DWORD err = GetLastError(); /* need to preserve last error */
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if (!(ptr = TlsGetValue( MSVCRT_tls_index )))
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{
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if (!(ptr = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*ptr) )))
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MSVCRT__amsg_exit( _RT_THREAD );
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if (!TlsSetValue( MSVCRT_tls_index, ptr )) MSVCRT__amsg_exit( _RT_THREAD );
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}
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SetLastError( err );
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return ptr;
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}
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/*********************************************************************
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* _beginthread_trampoline
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*/
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static DWORD CALLBACK _beginthread_trampoline(LPVOID arg)
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{
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_beginthread_trampoline_t local_trampoline;
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/* Maybe it's just being paranoid, but freeing arg right
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* away seems safer.
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*/
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memcpy(&local_trampoline,arg,sizeof(local_trampoline));
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MSVCRT_free(arg);
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local_trampoline.start_address(local_trampoline.arglist);
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return 0;
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}
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/*********************************************************************
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* _beginthread (MSVCRT.@)
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*/
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unsigned long _beginthread(
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_beginthread_start_routine_t start_address, /* [in] Start address of routine that begins execution of new thread */
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unsigned int stack_size, /* [in] Stack size for new thread or 0 */
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void *arglist) /* [in] Argument list to be passed to new thread or NULL */
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{
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_beginthread_trampoline_t* trampoline;
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TRACE("(%p, %d, %p)\n", start_address, stack_size, arglist);
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/* Allocate the trampoline here so that it is still valid when the thread
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* starts... typically after this function has returned.
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* _beginthread_trampoline is responsible for freeing the trampoline
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*/
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trampoline=MSVCRT_malloc(sizeof(*trampoline));
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trampoline->start_address = start_address;
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trampoline->arglist = arglist;
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/* FIXME */
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return CreateThread(NULL, stack_size, _beginthread_trampoline, trampoline, 0, NULL);
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}
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/*********************************************************************
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* _beginthreadex (MSVCRT.@)
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*/
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unsigned long _beginthreadex(
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void *security, /* [in] Security descriptor for new thread; must be NULL for Windows 9x applications */
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unsigned int stack_size, /* [in] Stack size for new thread or 0 */
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_beginthreadex_start_routine_t start_address, /* [in] Start address of routine that begins execution of new thread */
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void *arglist, /* [in] Argument list to be passed to new thread or NULL */
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unsigned int initflag, /* [in] Initial state of new thread (0 for running or CREATE_SUSPEND for suspended) */
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unsigned int *thrdaddr) /* [out] Points to a 32-bit variable that receives the thread identifier */
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{
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TRACE("(%p, %d, %p, %p, %d, %p)\n", security, stack_size, start_address, arglist, initflag, thrdaddr);
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/* FIXME */
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return CreateThread(security, stack_size, (LPTHREAD_START_ROUTINE) start_address,
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arglist, initflag, (LPDWORD) thrdaddr);
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}
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/*********************************************************************
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* _endthread (MSVCRT.@)
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*/
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void _endthread(void)
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{
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TRACE("(void)\n");
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/* FIXME */
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ExitThread(0);
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}
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/*********************************************************************
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* _endthreadex (MSVCRT.@)
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*/
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void _endthreadex(
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unsigned int retval) /* [in] Thread exit code */
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{
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TRACE("(%d)\n", retval);
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/* FIXME */
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ExitThread(retval);
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}
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