FreeRDP/libfreerdp-utils/semaphore.c

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/**
* FreeRDP: A Remote Desktop Protocol Client
* Semaphore Utils
*
* Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <freerdp/utils/memory.h>
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#include <freerdp/utils/semaphore.h>
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#include <freerdp/utils/windows.h>
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#if defined __APPLE__
#include <pthread.h>
#include <semaphore.h>
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#include <mach/mach.h>
#include <mach/semaphore.h>
#include <mach/task.h>
#define freerdp_sem_t semaphore_t
#elif defined _WIN32
#define freerdp_sem_t HANDLE
#else
#include <pthread.h>
#include <semaphore.h>
#define freerdp_sem_t sem_t
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#endif
freerdp_sem freerdp_sem_new(int iv)
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{
freerdp_sem_t* sem;
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sem = xnew(freerdp_sem_t);
#if defined __APPLE__
semaphore_create(mach_task_self(), sem, SYNC_POLICY_FIFO, iv);
#elif defined _WIN32
*sem = CreateSemaphore(NULL, 0, iv, NULL);
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#else
sem_init(sem, 0, iv);
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#endif
return sem;
}
void freerdp_sem_free(freerdp_sem sem)
{
#if defined __APPLE__
semaphore_destroy(mach_task_self(), *((freerdp_sem_t*)sem));
#elif defined _WIN32
CloseHandle(*((freerdp_sem_t*)sem));
#else
sem_destroy((freerdp_sem_t*)sem);
#endif
xfree(sem);
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}
void freerdp_sem_signal(freerdp_sem sem)
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{
#if defined __APPLE__
semaphore_signal(*((freerdp_sem_t*)sem));
#elif defined _WIN32
ReleaseSemaphore(*((freerdp_sem_t*)sem), 1, NULL);
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#else
sem_post((freerdp_sem_t*)sem);
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#endif
}
void freerdp_sem_wait(freerdp_sem sem)
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{
#if defined __APPLE__
semaphore_wait(*((freerdp_sem_t*)sem));
#elif defined _WIN32
WaitForSingleObject(*((freerdp_sem_t*)sem), INFINITE);
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#else
sem_wait((freerdp_sem_t*)sem);
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#endif
}