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58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/*
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* This is a proprietary software. See COPYING for further details.
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*
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* (c) 2013 Copyright Askele, inc. <http://askele.com>
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* (c) 2013 Copyright Askele Ingria, inc. <http://askele-ingria.com>
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* (c) 2014 Copyright Confident, inc. (granted permission to use in commercial software)
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*/
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/**
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* @file pth_queue.h
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* @author Alexander Vdolainen
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* @date 4 Nov 2013
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* @brief queue implementation for threads intercommunication
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*
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*/
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#ifndef __PTH_QUEUE_H__
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#define __PTH_QUEUE_H__
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#include <pthread.h>
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#define SYS_MSG 0x0f0affee
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#define USR_MSG 0x0afeeffe
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#define NIL_MSG 0x0
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typedef struct pth_msg_s {
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void *data; /** < message payload */
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unsigned int msgtype; /** < message type ID */
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unsigned int qlength; /** < current queue length (actual on add moment),
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* it makes no sense with few readers */
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usrtc_node_t node;
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} pth_msg_t;
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typedef struct pth_queue_s {
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unsigned int length;
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/* sync */
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pthread_mutex_t mutex;
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pthread_cond_t cond;
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/* queue data */
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usrtc_t qtree;
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/* cache */
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usrtc_t msgcache;
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} pth_queue_t;
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int pth_queue_init(pth_queue_t *queue);
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int pth_queue_add(pth_queue_t *queue, void *data, unsigned int msgtype);
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int pth_queue_get(pth_queue_t *queue, const struct timespec *timeout,
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pth_msg_t *msg);
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unsigned int pth_queue_length(pth_queue_t *queue);
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int pth_queue_destroy(pth_queue_t *queue, int freedata,
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void (*free_msg)(void *));
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#endif /* __PTH_QUEUE_H__ */
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