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/**
* xrdp: A Remote Desktop Protocol server.
*
* Copyright (C) Jay Sorg 2004-2014
*
* 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.
*
* thread calls
*/
#if defined(HAVE_CONFIG_H)
#include <config_ac.h>
#endif
#if defined(_WIN32)
#include <windows.h>
#elif defined(__APPLE__)
#include <pthread.h>
#include <dispatch/dispatch.h>
#include <dispatch/time.h>
#else
#include <pthread.h>
#include <semaphore.h>
#endif
#include "arch.h"
#include "thread_calls.h"
#include "os_calls.h"
/*****************************************************************************/
/* returns error */
#if defined(_WIN32)
int
tc_thread_create(unsigned long (__stdcall *start_routine)(void *), void *arg)
{
int rv = 0;
DWORD thread_id = 0;
HANDLE thread = (HANDLE)0;
/* CreateThread returns handle or zero on error */
thread = CreateThread(0, 0, start_routine, arg, 0, &thread_id);
rv = !thread;
CloseHandle(thread);
return rv;
}
#else
int
tc_thread_create(void *(* start_routine)(void *), void *arg)
{
int rv = 0;
pthread_t thread = (pthread_t)0;
g_memset(&thread, 0x00, sizeof(pthread_t));
/* pthread_create returns error */
rv = pthread_create(&thread, 0, start_routine, arg);
if (!rv)
{
rv = pthread_detach(thread);
}
return rv;
}
#endif
/*****************************************************************************/
tbus
tc_get_threadid(void)
{
#if defined(_WIN32)
return (tbus)GetCurrentThreadId();
#else
return (tbus)pthread_self();
#endif
}
/*****************************************************************************/
/* returns boolean */
int
tc_threadid_equal(tbus tid1, tbus tid2)
{
#if defined(_WIN32)
return tid1 == tid2;
#else
return pthread_equal((pthread_t)tid1, (pthread_t)tid2);
#endif
}
/*****************************************************************************/
tbus
tc_mutex_create(void)
{
#if defined(_WIN32)
return (tbus)CreateMutex(0, 0, 0);
#else
pthread_mutex_t *lmutex;
lmutex = (pthread_mutex_t *)g_malloc(sizeof(pthread_mutex_t), 0);
pthread_mutex_init(lmutex, 0);
return (tbus)lmutex;
#endif
}
/*****************************************************************************/
void
tc_mutex_delete(tbus mutex)
{
#if defined(_WIN32)
CloseHandle((HANDLE)mutex);
#else
pthread_mutex_t *lmutex;
lmutex = (pthread_mutex_t *)mutex;
pthread_mutex_destroy(lmutex);
g_free(lmutex);
#endif
}
/*****************************************************************************/
int
tc_mutex_lock(tbus mutex)
{
#if defined(_WIN32)
WaitForSingleObject((HANDLE)mutex, INFINITE);
return 0;
#else
pthread_mutex_lock((pthread_mutex_t *)mutex);
return 0;
#endif
}
/*****************************************************************************/
int
tc_mutex_unlock(tbus mutex)
{
int rv = 0;
#if defined(_WIN32)
ReleaseMutex((HANDLE)mutex);
#else
if (mutex != 0)
{
rv = pthread_mutex_unlock((pthread_mutex_t *)mutex);
}
#endif
return rv;
}
/*****************************************************************************/
tbus
tc_sem_create(int init_count)
{
#if defined(_WIN32)
HANDLE sem;
sem = CreateSemaphore(0, init_count, init_count + 10, 0);
return (tbus)sem;
#elif defined(__APPLE__)
dispatch_semaphore_t sem = dispatch_semaphore_create(init_count);
return (tbus)sem;
#else
sem_t *sem = (sem_t *)NULL;
sem = (sem_t *)g_malloc(sizeof(sem_t), 0);
sem_init(sem, 0, init_count);
return (tbus)sem;
#endif
}
/*****************************************************************************/
void
tc_sem_delete(tbus sem)
{
#if defined(_WIN32)
CloseHandle((HANDLE)sem);
#elif defined(__APPLE__)
dispatch_release((dispatch_semaphore_t)sem);
#else
sem_t *lsem;
lsem = (sem_t *)sem;
sem_destroy(lsem);
g_free(lsem);
#endif
}
/*****************************************************************************/
int
tc_sem_dec(tbus sem)
{
#if defined(_WIN32)
WaitForSingleObject((HANDLE)sem, INFINITE);
return 0;
#elif defined(__APPLE__)
dispatch_semaphore_wait((dispatch_semaphore_t)sem, DISPATCH_TIME_FOREVER);
return 0;
#else
sem_wait((sem_t *)sem);
return 0;
#endif
}
/*****************************************************************************/
int
tc_sem_inc(tbus sem)
{
#if defined(_WIN32)
ReleaseSemaphore((HANDLE)sem, 1, 0);
return 0;
#elif defined(__APPLE__)
dispatch_semaphore_signal((dispatch_semaphore_t)sem);
return 0;
#else
sem_post((sem_t *)sem);
return 0;
#endif
}
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