It is accomplished ...

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10 a95241bf-73f2-0310-859d-f6bbb57e9c96
2002-07-09 12:24:59 +00:00
commit 52a3801208
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+//
+//	$Id: MessageQueue.h,v 1.1 2002/07/09 12:24:32 ejakowatz Exp $
+//
+//	This is the BMessageQueue interface for OpenBeOS.  It has been created
+//  to be source and binary compatible with the BeOS version of
+//  BMessageQueue.
+//
+
+
+#ifndef	_OPENBEOS_MESSAGEQUEUE_H
+#define	_OPENBEOS_MESSAGEQUEUE_H
+
+
+#include "Locker.h"
+
+
+class BMessage;
+
+
+#ifdef USE_OPENBEOS_NAMESPACE
+namespace OpenBeOS {
+#endif
+
+class BMessageQueue {
+public:
+	BMessageQueue();
+	virtual ~BMessageQueue();
+	
+	void AddMessage(BMessage *message);
+	void RemoveMessage(BMessage *message);
+	
+	int32 CountMessages(void) const;
+	bool IsEmpty(void) const;
+	
+	BMessage *FindMessage(int32 index) const;
+	BMessage *FindMessage(uint32 what, int32 index=0) const;
+	
+	bool Lock(void);
+	void Unlock(void);
+	bool IsLocked(void);
+
+	BMessage *NextMessage(void);
+
+private:
+
+	// Reserved space in the vtable for future changes to BMessageQueue
+	virtual void _ReservedMessageQueue1(void);
+	virtual void _ReservedMessageQueue2(void);
+	virtual void _ReservedMessageQueue3(void);
+	
+	BMessageQueue(const BMessageQueue &);
+	BMessageQueue &operator=(const BMessageQueue &);
+	
+	BMessage *fTheQueue;
+	BMessage *fQueueTail;
+	int32 fMessageCount;
+	BLocker fLocker;
+	
+	// Reserved space for future changes to BMessageQueue
+	uint32 fReservedSpace[3];
+};
+
+#ifdef USE_OPENBEOS_NAMESPACE
+}
+#endif
+
+#endif // _OPENBEOS_MESSAGEQUEUE_H