You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
61 lines
1.2 KiB
61 lines
1.2 KiB
/*
|
|
queues frames in a "empty" and "data" queue
|
|
Copyright (C) 2001 Martin Vogt
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU Library General Public License as published by
|
|
the Free Software Foundation.
|
|
|
|
For more information look at the file COPYRIGHT in this package
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifndef __IOFRAMETQUEUE_H
|
|
#define __IOFRAMETQUEUE_H
|
|
|
|
#include "frameQueue.h"
|
|
#include <kdemacros.h>
|
|
|
|
/**
|
|
This class can store up to <size> frames.
|
|
The frames are marked "empty" these frames can be re-used
|
|
and filled with data.
|
|
The other queue stores "data" frames. These frames can
|
|
be dequeued and then are be passed to the "empty" queue.
|
|
|
|
Note: you need to _fill_ the empty queue with allocated frames,
|
|
after constructions. The pointers then are owned by this
|
|
class (== deleted in destructor)
|
|
|
|
*/
|
|
|
|
class KDE_EXPORT IOFrameQueue {
|
|
|
|
|
|
public:
|
|
IOFrameQueue(int size);
|
|
~IOFrameQueue();
|
|
|
|
//
|
|
// empty queue
|
|
//
|
|
int emptyQueueCanRead();
|
|
int emptyQueueCanWrite();
|
|
|
|
|
|
//
|
|
// data queue
|
|
//
|
|
int dataQueueCanRead();
|
|
int dataQueueCanWrite();
|
|
|
|
|
|
protected:
|
|
FrameQueue* empty;
|
|
FrameQueue* data;
|
|
|
|
};
|
|
#endif
|