65 lines
2.0 KiB
C
65 lines
2.0 KiB
C
/***************************************************************************
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* Copyright (C) 2020 - 2025 by Federico Amedeo Izzo IU2NUO, *
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* Niccolò Izzo IU2KIN *
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* Frederik Saraci IU2NRO *
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* Silvano Seva IU2KWO *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 3 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, see <http://www.gnu.org/licenses/> *
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***************************************************************************/
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#ifndef QUEUE_H
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#define QUEUE_H
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#include <pthread.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdbool.h>
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// Ring buffer size (MAX = 255)
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#define MSG_QTY 10
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typedef struct queue_t
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{
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pthread_mutex_t mutex;
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pthread_cond_t not_empty;
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uint8_t read_pos;
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uint8_t write_pos;
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uint8_t msg_num;
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uint32_t buffer[MSG_QTY];
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}
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queue_t;
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/**
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*
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*/
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void queue_init(queue_t *q);
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/**
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*
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*/
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void queue_terminate(queue_t *q);
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/**
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*
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*/
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bool queue_pend(queue_t *q, uint32_t *msg, bool blocking);
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/**
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*
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*/
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bool queue_post(queue_t *q, uint32_t msg);
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#endif
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