68 lines
1.6 KiB
C++
68 lines
1.6 KiB
C++
/* messageQueue.h */
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/**
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* Copyright - See the COPYRIGHT that is included with this distribution.
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* EPICS pvData is distributed subject to a Software License Agreement found
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* in file LICENSE that is included with this distribution.
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*/
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/**
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* @author mrk
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*/
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#ifndef MESSAGEQUEUE_H
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#define MESSAGEQUEUE_H
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#include <memory>
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#include <vector>
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#include <cstddef>
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#include <stdexcept>
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#include <pv/pvType.h>
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#include <pv/requester.h>
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#include <pv/queue.h>
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#include <shareLib.h>
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namespace epics { namespace pvData {
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class MessageNode;
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class MessageQueue;
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typedef std::tr1::shared_ptr<MessageNode> MessageNodePtr;
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typedef std::vector<MessageNodePtr> MessageNodePtrArray;
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typedef std::tr1::shared_ptr<MessageQueue> MessageQueuePtr;
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class epicsShareClass MessageNode {
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public:
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MessageNode();
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String getMessage() const;
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MessageType getMessageType() const;
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private:
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String message;
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MessageType messageType;
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friend class MessageQueue;
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};
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class epicsShareClass MessageQueue : public Queue<MessageNode> {
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public:
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POINTER_DEFINITIONS(MessageQueue);
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static MessageQueuePtr create(int size);
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MessageQueue(MessageNodePtrArray &nodeArray);
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virtual ~MessageQueue();
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MessageNodePtr &get();
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// must call release before next get
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void release();
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// return (false,true) if message (was not, was) put into queue
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bool put(String message,MessageType messageType,bool replaceLast);
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bool isEmpty() ;
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bool isFull() ;
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int getClearOverrun();
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private:
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MessageNodePtr nullNode;
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MessageNodePtr lastGet;
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MessageNodePtr lastPut;
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uint32 overrun;
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};
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}}
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#endif /* MESSAGEQUEUE_H */
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