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Feature: Enable SUBSCRIBE to multiple topics

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- Adds an api for multiple topics on SUBSCRIBE message.

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Removing headers

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This commit is contained in:
Euripedes Rocha
2022-12-12 15:27:40 +01:00
parent 5adbe11aaf
commit 32102558d3
6 changed files with 251 additions and 177 deletions
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26
lib/mqtt_msg.c
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@@ -29,6 +29,7 @@
*
*/
#include <string.h>
#include "mqtt_client.h"
#include "mqtt_msg.h"
#include "mqtt_config.h"
#include "platform.h"
@@ -518,26 +519,29 @@ mqtt_message_t *mqtt_msg_pubcomp(mqtt_connection_t *connection, uint16_t message
return fini_message(connection, MQTT_MSG_TYPE_PUBCOMP, 0, 0, 0);
}
mqtt_message_t *mqtt_msg_subscribe(mqtt_connection_t *connection, const char *topic, int qos, uint16_t *message_id)
mqtt_message_t *mqtt_msg_subscribe(mqtt_connection_t *connection, const esp_mqtt_topic_t topic_list[], int size, uint16_t *message_id)
{
init_message(connection);
if (topic == NULL || topic[0] == '\0') {
return fail_message(connection);
}
if ((*message_id = append_message_id(connection, 0)) == 0) {
return fail_message(connection);
}
if (append_string(connection, topic, strlen(topic)) < 0) {
return fail_message(connection);
}
for (int topic_number = 0; topic_number < size; ++topic_number) {
if (topic_list[topic_number].filter[0] == '\0') {
return fail_message(connection);
}
if (connection->message.length + 1 > connection->buffer_length) {
return fail_message(connection);
if (append_string(connection, topic_list[topic_number].filter, strlen(topic_list[topic_number].filter)) < 0) {
return fail_message(connection);
}
if (connection->message.length + 1 > connection->buffer_length) {
return fail_message(connection);
}
connection->buffer[connection->message.length] = topic_list[topic_number].qos;
connection->message.length ++;
}
connection->buffer[connection->message.length++] = qos;
return fini_message(connection, MQTT_MSG_TYPE_SUBSCRIBE, 0, 1, 0);
}