haiku/headers/os/app/MessageQueue.h
beveloper a358152c0a added #include <Message.h> for backward compatibility
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1686 a95241bf-73f2-0310-859d-f6bbb57e9c96
2002-10-26 18:59:16 +00:00

66 lines
1.4 KiB
C++

//
// $Id: MessageQueue.h,v 1.2 2002/10/26 18:59:16 beveloper 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>
#include <Message.h> /* For convenience */
#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