58 lines
1.6 KiB
C++
58 lines
1.6 KiB
C++
// Copyright 2009-2021 Intel Corporation
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
#include "mutex.h"
|
|
#include "regression.h"
|
|
|
|
#if defined(__WIN32__) && !defined(PTHREADS_WIN32)
|
|
|
|
#define WIN32_LEAN_AND_MEAN
|
|
#include <windows.h>
|
|
|
|
namespace embree
|
|
{
|
|
MutexSys::MutexSys() { mutex = new CRITICAL_SECTION; InitializeCriticalSection((CRITICAL_SECTION*)mutex); }
|
|
MutexSys::~MutexSys() { DeleteCriticalSection((CRITICAL_SECTION*)mutex); delete (CRITICAL_SECTION*)mutex; }
|
|
void MutexSys::lock() { EnterCriticalSection((CRITICAL_SECTION*)mutex); }
|
|
bool MutexSys::try_lock() { return TryEnterCriticalSection((CRITICAL_SECTION*)mutex) != 0; }
|
|
void MutexSys::unlock() { LeaveCriticalSection((CRITICAL_SECTION*)mutex); }
|
|
}
|
|
#endif
|
|
|
|
#if defined(__UNIX__) || defined(PTHREADS_WIN32)
|
|
#include <pthread.h>
|
|
namespace embree
|
|
{
|
|
/*! system mutex using pthreads */
|
|
MutexSys::MutexSys()
|
|
{
|
|
mutex = new pthread_mutex_t;
|
|
if (pthread_mutex_init((pthread_mutex_t*)mutex, nullptr) != 0)
|
|
THROW_RUNTIME_ERROR("pthread_mutex_init failed");
|
|
}
|
|
|
|
MutexSys::~MutexSys()
|
|
{
|
|
MAYBE_UNUSED bool ok = pthread_mutex_destroy((pthread_mutex_t*)mutex) == 0;
|
|
assert(ok);
|
|
delete (pthread_mutex_t*)mutex;
|
|
mutex = nullptr;
|
|
}
|
|
|
|
void MutexSys::lock()
|
|
{
|
|
if (pthread_mutex_lock((pthread_mutex_t*)mutex) != 0)
|
|
THROW_RUNTIME_ERROR("pthread_mutex_lock failed");
|
|
}
|
|
|
|
bool MutexSys::try_lock() {
|
|
return pthread_mutex_trylock((pthread_mutex_t*)mutex) == 0;
|
|
}
|
|
|
|
void MutexSys::unlock()
|
|
{
|
|
if (pthread_mutex_unlock((pthread_mutex_t*)mutex) != 0)
|
|
THROW_RUNTIME_ERROR("pthread_mutex_unlock failed");
|
|
}
|
|
};
|
|
#endif
|