First commit.

src/System/Mutex_W32.cpp

@@ -0,0 +1,88 @@
+#include "../../include/System/Mutex_W32.h"
+#include "../../include/Str.h"
+#include "../../include/Log.h"
+
+namespace lwe
+{
+	Mutex::~Mutex()
+	{
+		if (!initialized)
+			return;
+
+		if (!CloseHandle(hdl))
+			LWE_LOG_INT("Error", 0, "Failed to uninitialize mutex with error #" + Str_8::FromNum(GetLastError()) + ".");
+	}
+
+	Mutex::Mutex()
+		: hdl(nullptr)
+	{
+	}
+
+	Mutex::Mutex(const Mutex& mutex)
+		: BaseMutex(mutex), hdl(nullptr)
+	{
+	}
+
+	Mutex& Mutex::operator=(const Mutex& mutex)
+	{
+		if (this == &mutex)
+			return *this;
+
+		BaseMutex::operator=(mutex);
+
+		hdl = nullptr;
+
+		return *this;
+	}
+
+	void Mutex::Initialize()
+	{
+		if (initialized)
+			return;
+
+		hdl = CreateMutexW(nullptr, FALSE, nullptr);
+		if (!hdl)
+		{
+			LWE_LOG_INT("Error", 0, "Failed to create mutex with error #" + Str_8::FromNum(GetLastError()) + ".");
+			return;
+		}
+
+		initialized = true;
+	}
+
+	void Mutex::UnInitialize()
+	{
+		if (!initialized)
+			return;
+
+		if (!CloseHandle(hdl))
+			LWE_LOG_INT("Error", 0, "Failed to uninitialize mutex with error #" + Str_8::FromNum(GetLastError()) + ".");
+
+		initialized = false;
+	}
+
+	void Mutex::Lock()
+	{
+		if (locked)
+			return;
+
+		if (WaitForSingleObject(hdl, LWE_INFINITE) == WAIT_FAILED)
+		{
+			LWE_LOG_INT("Error", 0, "Failed to lock mutex with error #" + Str_8::FromNum(GetLastError()) + ".");
+			return;
+		}
+
+		locked = true;
+	}
+
+	void Mutex::Unlock()
+	{
+		if (!locked)
+			return;
+
+		if (!ReleaseMutex(hdl))
+			LWE_LOG_INT("Error", 0, "Failed to unlock mutex with error #" + Str_8::FromNum(GetLastError()) + ".");
+
+		locked = false;
+	}
+}