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#include <asura-lib-utils/exceptions/exception.h>
#include "mutex.h"
namespace AsuraEngine
{
namespace Threading
{
#define try_create_mutex(impl)\
if (!mImpl) \
{ \
try \
{ \
mImpl = new impl(); \
} \
catch (Exception& e) \
{ \
mImpl = nullptr; \
} \
}
Mutex::Mutex()
: mImpl(nullptr)
{
#if ASURA_THREAD_WIN32
try_create_mutex(MutexImplWin32);
#endif
ASSERT(mImpl);
}
Mutex::~Mutex()
{
delete mImpl;
}
void Mutex::Lock()
{
ASSERT(mImpl);
mImpl->Lock();
}
void Mutex::Unlock()
{
ASSERT(mImpl);
mImpl->Unlock();
}
#if ASURA_THREAD_WIN32
MutexImplWin32::MutexImplWin32()
{
//mHandle = ::CreateMutex(NULL, FALSE, NULL);
//if (!mHandle)
// throw Exception("Cant use win32 mutex.");
::InitializeCriticalSection(&mMutex);
}
MutexImplWin32::~MutexImplWin32()
{
//::CloseHandle(mHandle);
//mHandle = NULL;
::DeleteCriticalSection(&mMutex);
}
void MutexImplWin32::Lock()
{
//::WaitForSingleObject(mHandle, INFINITE);
::EnterCriticalSection(&mMutex);
}
void MutexImplWin32::Unlock()
{
//::ReleaseMutex(mHandle);
::LeaveCriticalSection(&mMutex);
}
#endif // ASURA_THREAD_WIN32
}
}
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