Steve Karg
94b3809a58
* Added reject in all confirmed service handlers, except GetEventInformation, when confirmed services with zero length occur which rejects with required parameters are missing message. * Refactored errno use in service using debug_perror. Changed debug_perror usage to debug_fprintf. * Updated file and function headers in basic/service modules. * Changed NDPU priority on confirmed messages to use requested NDPU priority. * Renamed debug_aprintf to debug_printf_stdout for clarity. * Convert most debug_fprintf usage to debug_print to reduce text bloat in AVR build
84 lines
1.5 KiB
C
84 lines
1.5 KiB
C
/**
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* @file
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* @author Andriy Sukhynyuk, Vasyl Tkhir, Andriy Ivasiv
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* @date 2012
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* @brief Message queue module
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*
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* @section LICENSE
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*
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* SPDX-License-Identifier: MIT
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <pthread.h>
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#include "msgqueue.h"
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pthread_mutex_t msg_lock = PTHREAD_MUTEX_INITIALIZER;
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MSGBOX_ID create_msgbox(void)
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{
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MSGBOX_ID msgboxid;
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msgboxid = msgget(IPC_PRIVATE, 0666 | IPC_CREAT);
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if (msgboxid == INVALID_MSGBOX_ID) {
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return INVALID_MSGBOX_ID;
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}
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return msgboxid;
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}
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bool send_to_msgbox(MSGBOX_ID dest, BACMSG *msg)
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{
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int err;
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err = msgsnd(dest, msg, sizeof(BACMSG) - sizeof(MSGTYPE), 0);
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if (err) {
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return false;
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}
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return true;
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}
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BACMSG *recv_from_msgbox(MSGBOX_ID src, BACMSG *msg, int flags)
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{
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int recv_bytes;
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recv_bytes = msgrcv(src, msg, sizeof(BACMSG) - sizeof(MSGTYPE), 0, flags);
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if (recv_bytes > 0) {
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return msg;
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} else {
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return NULL;
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}
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}
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void del_msgbox(MSGBOX_ID msgboxid)
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{
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if (msgboxid == INVALID_MSGBOX_ID) {
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return;
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} else {
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msgctl(msgboxid, IPC_RMID, NULL);
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}
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}
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void free_data(MSG_DATA *data)
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{
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if (data->pdu) {
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free(data->pdu);
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data->pdu = NULL;
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}
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if (data) {
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free(data);
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data = NULL;
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}
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}
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void check_data(MSG_DATA *data)
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{
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/* lock and decrement messages reference count */
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pthread_mutex_lock(&msg_lock);
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if (--data->ref_count == 0) {
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free_data(data);
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}
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pthread_mutex_unlock(&msg_lock);
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}
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