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116 lines
3.5 KiB
C
116 lines
3.5 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <precomp.h>
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#include <internal/wine/msvcrt.h>
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#include <malloc.h>
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#include <process.h>
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void _amsg_exit (int errnum);
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/* Index to TLS */
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DWORD MSVCRT_tls_index;
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typedef void (*_beginthread_start_routine_t)(void *);
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typedef unsigned int (__stdcall *_beginthreadex_start_routine_t)(void *);
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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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_amsg_exit( _RT_THREAD );
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if (!TlsSetValue( MSVCRT_tls_index, ptr )) _amsg_exit( _RT_THREAD );
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ptr->random_seed = 1;
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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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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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uintptr_t _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=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 (uintptr_t)CreateThread(NULL, stack_size, _beginthread_trampoline,
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trampoline, 0, NULL);
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}
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/*********************************************************************
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* _endthread (MSVCRT.@)
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*/
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void CDECL _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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