mirror of
https://github.com/stargieg/bacnet-stack
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87 lines
1.9 KiB
C
87 lines
1.9 KiB
C
/*
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Copyright (C) 2012 Andriy Sukhynyuk, Vasyl Tkhir, Andriy Ivasiv
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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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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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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 MSGQUEUE_H
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#define MSGQUEUE_H
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#include <stdint.h>
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#include <stdbool.h>
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#include <sys/types.h>
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#include <sys/ipc.h>
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#include <sys/msg.h>
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#include "bacdef.h"
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#include "npdu.h"
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extern pthread_mutex_t msg_lock;
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#define INVALID_MSGBOX_ID -1
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typedef int MSGBOX_ID;
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typedef enum {
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DATA,
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SERVICE
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} MSGTYPE;
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typedef enum {
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SHUTDOWN,
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CHG_IP,
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CHG_MAC
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} MSGSUBTYPE;
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typedef struct _message {
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MSGBOX_ID origin;
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MSGTYPE type;
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MSGSUBTYPE subtype;
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void *data;
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/* add timestamp */
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} BACMSG;
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/* specific message type data structures */
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typedef struct _msg_data {
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BACNET_ADDRESS dest;
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BACNET_ADDRESS src;
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uint8_t *pdu;
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uint16_t pdu_len;
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uint8_t ref_count;
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} MSG_DATA;
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MSGBOX_ID create_msgbox(
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);
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/* returns sent byte count */
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bool send_to_msgbox(
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MSGBOX_ID dest,
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BACMSG * msg);
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/* returns received message */
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BACMSG *recv_from_msgbox(
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MSGBOX_ID src,
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BACMSG * msg);
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void del_msgbox(
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MSGBOX_ID msgboxid);
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/* free message data structure */
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void free_data(
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MSG_DATA * data);
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/* check message reference counter and delete data if needed */
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void check_data(
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MSG_DATA * data);
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#endif /* end of MSGQUEUE_H */
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