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datagramQueue.h
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52 lines (43 loc) · 1.18 KB
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/**
* PANDA 3D SOFTWARE
* Copyright (c) Carnegie Mellon University. All rights reserved.
*
* All use of this software is subject to the terms of the revised BSD
* license. You should have received a copy of this license along
* with this source code in a file named "LICENSE."
*
* @file datagramQueue.h
* @author drose
* @date 2000-02-07
*/
#ifndef DATAGRAMQUEUE_H
#define DATAGRAMQUEUE_H
#include "pandabase.h"
#include "netDatagram.h"
#include "pmutex.h"
#include "conditionVarFull.h"
#include "pdeque.h"
/**
* A thread-safe, FIFO queue of NetDatagrams. This is used by
* ConnectionWriter for queuing up datagrams for its various threads to write
* to sockets.
*/
class EXPCL_PANDA_NET DatagramQueue {
public:
DatagramQueue();
~DatagramQueue();
void shutdown();
bool insert(const NetDatagram &data, bool block = false);
bool extract(NetDatagram &result);
void set_max_queue_size(int max_size);
int get_max_queue_size() const;
int get_current_queue_size() const;
private:
Mutex _cvlock;
ConditionVarFull _cv; // signaled when queue contents change.
typedef pdeque<NetDatagram> QueueType;
QueueType _queue;
bool _shutdown;
int _max_queue_size;
};
#endif