untested pthreads event implementation

stepmania/src/arch/Threads/Threads_Pthreads.cpp

@@ -204,6 +204,39 @@ MutexImpl *MakeMutex( RageMutex *pParent )
 	return new MutexImpl_Pthreads( pParent );
 }
 
+EventImpl_Pthreads::EventImpl_Pthreads( MutexImpl_Pthreads *pParent )
+{
+	m_pParent = pParent;
+	pthread_cond_init( &m_Cond, NULL );
+}
+
+EventImpl_Pthreads::~EventImpl_Pthreads()
+{
+	pthread_cond_destroy( &m_Cond );
+}
+
+void EventImpl_Pthreads::Wait()
+{
+	pthread_cond_wait( &m_Cond, &m_pParent->mutex );
+}
+
+void EventImpl_Pthreads::Signal()
+{
+	pthread_cond_signal( &m_Cond );
+}
+
+void EventImpl_Pthreads::Broadcast()
+{
+	pthread_cond_broadcast( &m_Cond );
+}
+
+EventImpl *MakeEvent( MutexImpl *pMutex )
+{
+	MutexImpl_Pthreads *pPthreadsMutex = (MutexImpl_Pthreads *) pMutex;
+
+	return new EventImpl_Pthreads( pPthreadsMutex );
+}
+
 #if 0
 SemaImpl_Pthreads::SemaImpl_Pthreads( int iInitialValue )
 {

stepmania/src/arch/Threads/Threads_Pthreads.h

@@ -32,6 +32,8 @@ public:
 
 class MutexImpl_Pthreads: public MutexImpl
 {
+	friend class EventImpl_Pthreads;
+
 public:
 	MutexImpl_Pthreads( RageMutex *parent );
 	~MutexImpl_Pthreads();
@@ -40,10 +42,25 @@ public:
 	bool TryLock();
 	void Unlock();
 
-private:
+protected:
 	pthread_mutex_t mutex;
 };
 
+class EventImpl_Pthreads: public EventImpl
+{
+public:
+	EventImpl_Pthreads( MutexImpl_Pthreads *pParent );
+	~EventImpl_Pthreads();
+
+	void Wait();
+	void Signal();
+	void Broadcast();
+
+private:
+	MutexImpl_Pthreads *m_pParent;
+	pthread_cond_t m_Cond;
+};
+
 #if 0
 class SemaImpl_Pthreads: public SemaImpl
 {