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58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
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/***************************************************************************
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rlfifo.h - description
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-------------------
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begin : Tue Jan 02 2001
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copyright : (C) 2001 by R. Lehrig
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email : lehrig@t-online.de
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***************************************************************************/
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/***************************************************************************
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* *
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* This library is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE as *
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* published by the Free Software Foundation *
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* *
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***************************************************************************/
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#ifndef _RL_FIFO_H_
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#define _RL_FIFO_H_
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#include "rldefine.h"
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#include "rlthread.h"
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/*! <pre>
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class for a fifo. (first in first out)
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</pre> */
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class rlFifo
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{
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private:
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typedef struct _MessageList_
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{
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char *mes;
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int len;
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struct _MessageList_ *next;
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}MessageList;
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public:
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rlFifo(int maxmessages=0);
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virtual ~rlFifo();
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enum FifoEnum {
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DATA_AVAILABLE=-1, NO_DATA_AVAILABLE=-2, MESSAGE_TO_BIG=-3, FIFO_FULL=-4
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};
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int read(void *buf, int maxlen);
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int poll();
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int nmesAvailable();
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int write(const void *buf, int len);
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int printf(const char *format, ...);
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private:
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int maxmes;
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int nmes;
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MessageList *list;
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WSEMAPHORE semaphore;
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pthread_mutex_t mutex;
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};
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#endif
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