Remove oak::lock_t and oak::mutex_t

Shared/include/oak/lock.h

@@ -1,41 +0,0 @@
-#ifndef LOCK_H_SDS5VGYK
-#define LOCK_H_SDS5VGYK
-
-namespace oak
-{
-	struct lock_t
-	{
-		lock_t (pthread_mutex_t& mutex) : mutex(&mutex), is_locked(false) { lock(); }
-		lock_t (lock_t const& rhs) : mutex(rhs.mutex)                     { lock(); }
-		lock_t& operator= (lock_t const& rhs)                             { unlock(); mutex = rhs.mutex; is_locked = false; lock(); return *this; }
-		~lock_t ()                                                        { unlock(); }
-
-		void lock ()         { if(!is_locked)  pthread_mutex_lock(mutex);    is_locked = true; }
-		void unlock ()       { if(is_locked)   pthread_mutex_unlock(mutex);  is_locked = false; }
-
-	private:
-		pthread_mutex_t* mutex;
-		bool is_locked;
-	};
-
-	struct mutex_t
-	{
-		mutex_t ()
-		{
-			pthread_mutexattr_t attr;
-			pthread_mutexattr_init(&attr);
-			pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
-			pthread_mutex_init(&mutex, &attr);
-			pthread_mutexattr_destroy(&attr);
-		}
-
-		~mutex_t ()                            { pthread_mutex_destroy(&mutex); }
-		lock_t const operator() () const       { return lock_t(mutex); }
-
-	private:
-		mutable pthread_mutex_t mutex;
-	};
-
-} /* oak */
-
-#endif /* end of include guard: LOCK_H_SDS5VGYK */