interface/mutex: Implement

src/interface/mutex.h

@@ -2,15 +2,34 @@
 // Copyright 2014 Perttu Ahola <celeron55@gmail.com>
 #pragma once
 #include "core/types.h"
+#ifdef _WIN32
+	#include "ports/windows_compat.h"
+#else
+	#include <pthread.h>
+#endif
 
 namespace interface
 {
+	// A recursive mutex
 	struct Mutex
 	{
-		// TODO
+		pthread_mutex_t mutex;
+		pthread_mutexattr_t attr;
+
+		Mutex(){
+			pthread_mutexattr_init(&attr);
+			pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+			pthread_mutex_init(&mutex, &attr);
+		}
+		~Mutex(){
+			pthread_mutex_destroy(&mutex);
+			pthread_mutexattr_destroy(&attr);
+		}
 		void lock(){
+			pthread_mutex_lock(&mutex);
 		}
 		void unlock(){
+			pthread_mutex_unlock(&mutex);
 		}
 	};