2 * msvcrt.dll thread functions
4 * Copyright 2000 Jon Griffiths
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 #include "wine/debug.h"
23 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
25 /********************************************************************/
28 HANDLE is_ready, thread;
29 MSVCRT__beginthread_start_routine_t start_address;
31 } _beginthread_trampoline_t;
33 /*********************************************************************
34 * msvcrt_get_thread_data
36 * Return the thread local storage structure.
38 thread_data_t *msvcrt_get_thread_data(void)
41 DWORD err = GetLastError(); /* need to preserve last error */
43 if (!(ptr = TlsGetValue( msvcrt_tls_index )))
45 if (!(ptr = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*ptr) )))
46 _amsg_exit( _RT_THREAD );
47 if (!TlsSetValue( msvcrt_tls_index, ptr )) _amsg_exit( _RT_THREAD );
48 ptr->tid = GetCurrentThreadId();
49 ptr->handle = INVALID_HANDLE_VALUE;
51 ptr->locinfo = MSVCRT_locale->locinfo;
52 ptr->mbcinfo = MSVCRT_locale->mbcinfo;
59 /*********************************************************************
60 * _beginthread_trampoline
62 static DWORD CALLBACK _beginthread_trampoline(LPVOID arg)
64 _beginthread_trampoline_t local_trampoline, *trampoline = arg;
65 thread_data_t *data = msvcrt_get_thread_data();
67 if(!DuplicateHandle(GetCurrentProcess(), GetCurrentThread(), GetCurrentProcess(),
68 &trampoline->thread, 0, TRUE, DUPLICATE_SAME_ACCESS)) {
69 trampoline->thread = NULL;
70 SetEvent(&trampoline->is_ready);
74 memcpy(&local_trampoline, trampoline, sizeof(local_trampoline));
75 data->handle = local_trampoline.thread;
76 SetEvent(trampoline->is_ready);
78 local_trampoline.start_address(local_trampoline.arglist);
82 /*********************************************************************
83 * _beginthread (MSVCRT.@)
85 MSVCRT_uintptr_t CDECL _beginthread(
86 MSVCRT__beginthread_start_routine_t start_address, /* [in] Start address of routine that begins execution of new thread */
87 unsigned int stack_size, /* [in] Stack size for new thread or 0 */
88 void *arglist) /* [in] Argument list to be passed to new thread or NULL */
90 _beginthread_trampoline_t trampoline;
93 TRACE("(%p, %d, %p)\n", start_address, stack_size, arglist);
95 trampoline.is_ready = CreateEventW(NULL, FALSE, FALSE, NULL);
96 if(!trampoline.is_ready) {
97 *MSVCRT__errno() = MSVCRT_EAGAIN;
100 trampoline.start_address = start_address;
101 trampoline.arglist = arglist;
103 thread = CreateThread(NULL, stack_size, _beginthread_trampoline,
104 &trampoline, 0, NULL);
106 *MSVCRT__errno() = MSVCRT_EAGAIN;
111 WaitForSingleObject(trampoline.is_ready, INFINITE);
112 CloseHandle(trampoline.is_ready);
114 if(!trampoline.thread) {
115 *MSVCRT__errno() = MSVCRT_EAGAIN;
118 return (MSVCRT_uintptr_t)trampoline.thread;
121 /*********************************************************************
122 * _beginthreadex (MSVCRT.@)
124 MSVCRT_uintptr_t CDECL _beginthreadex(
125 void *security, /* [in] Security descriptor for new thread; must be NULL for Windows 9x applications */
126 unsigned int stack_size, /* [in] Stack size for new thread or 0 */
127 MSVCRT__beginthreadex_start_routine_t start_address, /* [in] Start address of routine that begins execution of new thread */
128 void *arglist, /* [in] Argument list to be passed to new thread or NULL */
129 unsigned int initflag, /* [in] Initial state of new thread (0 for running or CREATE_SUSPEND for suspended) */
130 unsigned int *thrdaddr) /* [out] Points to a 32-bit variable that receives the thread identifier */
132 TRACE("(%p, %d, %p, %p, %d, %p)\n", security, stack_size, start_address, arglist, initflag, thrdaddr);
135 return (MSVCRT_uintptr_t)CreateThread(security, stack_size,
136 start_address, arglist,
140 /*********************************************************************
141 * _endthread (MSVCRT.@)
143 void CDECL _endthread(void)
151 /*********************************************************************
152 * _endthreadex (MSVCRT.@)
154 void CDECL _endthreadex(
155 unsigned int retval) /* [in] Thread exit code */
157 TRACE("(%d)\n", retval);
163 /*********************************************************************
164 * _getptd - not exported in native msvcrt
166 thread_data_t* CDECL _getptd(void)
168 FIXME("returns undocumented/not fully filled data\n");
169 return msvcrt_get_thread_data();