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bbcc7ffc69
We now depend on libpthread on all Unix platforms (should be installed by default) and use a simple wrapper for Windows threads under Win32. Signed-off-by: Vicent Marti <tanoku@gmail.com>
121 lines
3.3 KiB
C
121 lines
3.3 KiB
C
/*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, version 2,
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* as published by the Free Software Foundation.
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*
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* In addition to the permissions in the GNU General Public License,
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* the authors give you unlimited permission to link the compiled
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* version of this file into combinations with other programs,
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* and to distribute those combinations without any restriction
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* coming from the use of this file. (The General Public License
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* restrictions do apply in other respects; for example, they cover
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* modification of the file, and distribution when not linked into
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* a combined executable.)
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*
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* This file is distributed in the hope that it will be useful, but
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* 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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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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* Original code by Ramiro Polla (Public Domain)
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*/
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#include "pthread.h"
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int pthread_create(pthread_t *GIT_RESTRICT thread,
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const pthread_attr_t *GIT_RESTRICT GIT_UNUSED(attr),
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void *(*start_routine)(void*), void *GIT_RESTRICT arg)
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{
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GIT_UNUSED_ARG(attr);
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*thread = (pthread_t) CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)start_routine, arg, 0, NULL);
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return *thread ? GIT_SUCCESS : GIT_EOSERR;
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}
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int pthread_cond_signal(pthread_cond_t *cond)
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{
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WakeConditionVariable(cond);
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return 0;
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}
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int pthread_cond_wait(pthread_cond_t *GIT_RESTRICT cond,
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pthread_mutex_t *GIT_RESTRICT mutex)
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{
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int ret;
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ret = SleepConditionVariableCS(cond, mutex, INFINITE);
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return -(!ret);
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}
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int pthread_mutex_lock(pthread_mutex_t *mutex)
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{
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EnterCriticalSection(mutex);
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return 0;
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}
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int pthread_mutex_unlock(pthread_mutex_t *mutex)
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{
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LeaveCriticalSection(mutex);
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return 0;
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}
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int pthread_join(pthread_t thread, void **value_ptr)
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{
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int ret;
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ret = WaitForSingleObject(thread, INFINITE);
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if (ret && value_ptr)
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GetExitCodeThread(thread, (void*) value_ptr);
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return -(!!ret);
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}
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int pthread_cond_broadcast(pthread_cond_t *cond)
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{
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WakeAllConditionVariable(cond);
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return 0;
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}
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int pthread_mutex_destroy(pthread_mutex_t *mutex)
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{
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int ret;
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ret = CloseHandle(mutex);
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return -(!ret);
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}
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int pthread_cond_destroy(pthread_cond_t *GIT_UNUSED(cond))
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{
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GIT_UNUSED_ARG(cond);
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return 0;
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}
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int pthread_cond_init(pthread_cond_t *GIT_RESTRICT cond,
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const pthread_condattr_t *GIT_RESTRICT GIT_UNUSED(condattr))
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{
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GIT_UNUSED_ARG(condattr);
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InitializeConditionVariable(cond);
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return 0;
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}
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int pthread_mutex_init(pthread_mutex_t *GIT_RESTRICT mutex,
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const pthread_mutexattr_t *GIT_RESTRICT GIT_UNUSED(mutexattr))
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{
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GIT_UNUSED_ARG(mutexattr);
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InitializeCriticalSection(mutex);
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return 0;
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}
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int pthread_num_processors_np(void)
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{
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DWORD_PTR p, s;
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int n = 0;
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if (GetProcessAffinityMask(GetCurrentProcess(), &p, &s))
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for (; p; p >>= 1)
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n += p&1;
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return n ? n : 1;
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}
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