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/*
* Copyright (C) 2023 Mikhail Burakov. This file is part of MQhTTp.
*
* MQhTTp is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* MQhTTp is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with MQhTTp. If not, see <https://www.gnu.org/licenses/>.
*/
#include "message.h"
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include "toolbox/utils.h"
struct Message* MessageCreate(const char* topic, size_t topic_size) {
struct Message* message = malloc(sizeof(struct Message));
if (!message) {
LOGW("Failed to allocate message (%s)", strerror(errno));
return NULL;
}
message->topic = malloc(topic_size);
if (!message->topic) {
LOGW("Failed to copy topic (%s)", strerror(errno));
goto free_message;
}
memcpy(message->topic, topic, topic_size);
message->topic_size = topic_size;
message->payload = NULL;
message->payload_size = 0;
return message;
free_message:
free(message);
return NULL;
}
int MessageCompare(const void* a, const void* b) {
const struct Message* message_a = a;
const struct Message* message_b = b;
if (message_a->topic_size > message_b->topic_size) return 1;
if (message_a->topic_size < message_b->topic_size) return -1;
return memcmp(message_a->topic, message_b->topic, message_a->topic_size);
}
void MessageDestroy(void* message) {
struct Message* instance = message;
free(instance->payload);
free(instance->topic);
free(instance);
}
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