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/*
* thread.c
*
* Copyright (c) 2012-2019 Nikias Bassen, All Rights Reserved.
* Copyright (c) 2012 Martin Szulecki, All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef WIN32
#include <windows.h>
#endif
#include "common.h"
#include "libimobiledevice-glue/thread.h"
int thread_new(THREAD_T *thread, thread_func_t thread_func, void* data)
{
#ifdef WIN32
HANDLE th = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)(void*)thread_func, data, 0, NULL);
if (th == NULL) {
return -1;
}
*thread = th;
return 0;
#else
int res = pthread_create(thread, NULL, thread_func, data);
return res;
#endif
}
void thread_detach(THREAD_T thread)
{
#ifdef WIN32
CloseHandle(thread);
#else
pthread_detach(thread);
#endif
}
void thread_free(THREAD_T thread)
{
#ifdef WIN32
CloseHandle(thread);
#endif
}
int thread_join(THREAD_T thread)
{
/* wait for thread to complete */
#ifdef WIN32
return (int)WaitForSingleObject(thread, INFINITE);
#else
return pthread_join(thread, NULL);
#endif
}
int thread_alive(THREAD_T thread)
{
if (!thread)
return 0;
#ifdef WIN32
return WaitForSingleObject(thread, 0) == WAIT_TIMEOUT;
#else
return pthread_kill(thread, 0) == 0;
#endif
}
int thread_cancel(THREAD_T thread)
{
#ifdef WIN32
return -1;
#else
#ifdef HAVE_PTHREAD_CANCEL
return pthread_cancel(thread);
#else
return -1;
#endif
#endif
}
void mutex_init(mutex_t* mutex)
{
#ifdef WIN32
InitializeCriticalSection((LPCRITICAL_SECTION)mutex);
#else
pthread_mutex_init(mutex, NULL);
#endif
}
void mutex_destroy(mutex_t* mutex)
{
#ifdef WIN32
DeleteCriticalSection((LPCRITICAL_SECTION)mutex);
#else
pthread_mutex_destroy(mutex);
#endif
}
void mutex_lock(mutex_t* mutex)
{
#ifdef WIN32
EnterCriticalSection((LPCRITICAL_SECTION)mutex);
#else
pthread_mutex_lock(mutex);
#endif
}
void mutex_unlock(mutex_t* mutex)
{
#ifdef WIN32
LeaveCriticalSection((LPCRITICAL_SECTION)mutex);
#else
pthread_mutex_unlock(mutex);
#endif
}
void thread_once(thread_once_t *once_control, void (*init_routine)(void))
{
#ifdef WIN32
while (InterlockedExchange(&(once_control->lock), 1) != 0) {
Sleep(1);
}
if (!once_control->state) {
once_control->state = 1;
init_routine();
}
InterlockedExchange(&(once_control->lock), 0);
#else
pthread_once(once_control, init_routine);
#endif
}
void cond_init(cond_t* cond)
{
#ifdef WIN32
cond->sem = CreateSemaphore(NULL, 0, 32767, NULL);
#else
pthread_cond_init(cond, NULL);
#endif
}
void cond_destroy(cond_t* cond)
{
#ifdef WIN32
CloseHandle(cond->sem);
#else
pthread_cond_destroy(cond);
#endif
}
int cond_signal(cond_t* cond)
{
#ifdef WIN32
int result = 0;
if (!ReleaseSemaphore(cond->sem, 1, NULL)) {
result = -1;
}
return result;
#else
return pthread_cond_signal(cond);
#endif
}
int cond_wait(cond_t* cond, mutex_t* mutex)
{
#ifdef WIN32
mutex_unlock(mutex);
DWORD res = WaitForSingleObject(cond->sem, INFINITE);
switch (res) {
case WAIT_OBJECT_0:
return 0;
default:
return -1;
}
#else
return pthread_cond_wait(cond, mutex);
#endif
}
int cond_wait_timeout(cond_t* cond, mutex_t* mutex, unsigned int timeout_ms)
{
#ifdef WIN32
mutex_unlock(mutex);
DWORD res = WaitForSingleObject(cond->sem, timeout_ms);
switch (res) {
case WAIT_OBJECT_0:
case WAIT_TIMEOUT:
return 0;
default:
return -1;
}
#else
struct timespec ts;
struct timeval now;
gettimeofday(&now, NULL);
ts.tv_sec = now.tv_sec + timeout_ms / 1000;
ts.tv_nsec = now.tv_usec * 1000 + 1000 * 1000 * (timeout_ms % 1000);
ts.tv_sec += ts.tv_nsec / (1000 * 1000 * 1000);
ts.tv_nsec %= (1000 * 1000 * 1000);
return pthread_cond_timedwait(cond, mutex, &ts);
#endif
}
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