*misc

1 files changed, 106 insertions, 0 deletions

diff --git a/source/libs/asura-lib-utils/threading/mutex.cpp b/source/libs/asura-lib-utils/threading/mutex.cpp
new file mode 100644
index 0000000..663ac28
--- /dev/null
+++ b/source/libs/asura-lib-utils/threading/mutex.cpp
@@ -0,0 +1,106 @@
+#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_MUTEX_WIN32_CRITICLE_SECTION
+			try_create_mutex(MutexImplWin32_CS);
+#endif
+#if ASURA_MUTEX_WIN32_KERNAL_MUTEX
+			try_create_mutex(MutexImplWin32_KM);
+#endif
+			ASSERT(mImpl);
+		}
+
+		Mutex::~Mutex()
+		{
+			delete mImpl;
+		}
+
+		void Mutex::Lock()
+		{
+			ASSERT(mImpl);
+
+			mImpl->Lock();
+		}
+
+		void Mutex::Unlock()
+		{
+			ASSERT(mImpl);
+
+			mImpl->Unlock();
+		}
+
+#if ASURA_MUTEX_WIN32_CRITICLE_SECTION 
+
+		MutexImplWin32_CS::MutexImplWin32_CS()
+		{
+			::InitializeCriticalSection(&mMutex);
+		}
+
+		MutexImplWin32_CS::~MutexImplWin32_CS()
+		{
+			::DeleteCriticalSection(&mMutex);
+		}
+
+		void MutexImplWin32_CS::Lock()
+		{
+			::EnterCriticalSection(&mMutex);
+		}
+
+		void MutexImplWin32_CS::Unlock()
+		{
+			::LeaveCriticalSection(&mMutex);
+		}
+
+#endif // ASURA_MUTEX_WIN32_CRITICLE_SECTION
+
+#if ASURA_MUTEX_WIN32_KERNAL_MUTEX
+
+		MutexImplWin32_KM::MutexImplWin32_KM()
+		{
+			mHandle = ::CreateMutex(NULL, FALSE, NULL);
+			if (!mHandle)
+				throw Exception("Cant use win32 mutex.");
+		}
+
+		MutexImplWin32_KM::~MutexImplWin32_KM()
+		{
+			::CloseHandle(mHandle);
+			mHandle = NULL;
+		}
+
+		void MutexImplWin32_KM::Lock()
+		{
+			::WaitForSingleObject(mHandle, INFINITE);
+		}
+
+		void MutexImplWin32_KM::Unlock()
+		{
+			::ReleaseMutex(mHandle);
+		}
+
+#endif // ASURA_MUTEX_WIN32_KERNAL_MUTEX
+
+	}
+}