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Extend mg_mqtt_{pub,sub} by adding qos and retain

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cpq committed 2021-06-10 19:27:19 +01:00
1 parent a15d518571
commit 3deafaea7f
8 files changed
+39 -63
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examples/mqtt-client/main.c
+12 -12
View File
@@ -29,9 +29,9 @@ static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
// MQTT connect is successful
struct mg_str topic = mg_str(s_topic), data = mg_str("hello");
LOG(LL_INFO, ("CONNECTED to %s", s_url));
mg_mqtt_sub(c, &topic);
mg_mqtt_sub(c, &topic, 1);
LOG(LL_INFO, ("SUBSCRIBED to %.*s", (int) topic.len, topic.ptr));
mg_mqtt_pub(c, &topic, &data);
mg_mqtt_pub(c, &topic, &data, 1, false);
LOG(LL_INFO, ("PUBSLISHED %.*s -> %.*s", (int) data.len, data.ptr,
(int) topic.len, topic.ptr));
} else if (ev == MG_EV_MQTT_MSG) {
@@ -47,16 +47,16 @@ static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
}
int main(void) {
struct mg_mgr mgr; // Event manager
struct mg_mqtt_opts opts; // MQTT connection options
bool done = false; // Event handler flips it to true when done
mg_mgr_init(&mgr); // Initialise event manager
memset(&opts, 0, sizeof(opts)); // Set MQTT options
opts.qos = 1; // Set QoS to 1
opts.will_topic = mg_str(s_topic); // Set last will topic
opts.will_message = mg_str("goodbye"); // And last will message
struct mg_mgr mgr; // Event manager
struct mg_mqtt_opts opts; // MQTT connection options
bool done = false; // Event handler flips it to true when done
mg_mgr_init(&mgr); // Initialise event manager
memset(&opts, 0, sizeof(opts)); // Set MQTT options
opts.qos = 1; // Set QoS to 1
opts.will_topic = mg_str(s_topic); // Set last will topic
opts.will_message = mg_str("goodbye"); // And last will message
mg_mqtt_connect(&mgr, s_url, &opts, fn, &done); // Create client connection
while (done == false) mg_mgr_poll(&mgr, 1000); // Event loop
mg_mgr_free(&mgr); // Finished, cleanup
while (done == false) mg_mgr_poll(&mgr, 1000); // Event loop
mg_mgr_free(&mgr); // Finished, cleanup
return 0;
}
examples/mqtt-server/main.c
+1 -1
View File
@@ -55,7 +55,7 @@ static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
mm->data.ptr, (int) mm->topic.len, mm->topic.ptr));
for (struct sub *sub = s_subs; sub != NULL; sub = sub->next) {
if (mg_strcmp(mm->topic, sub->topic) != 0) continue;
mg_mqtt_pub(sub->c, &mm->topic, &mm->data);
mg_mqtt_pub(sub->c, &mm->topic, &mm->data, 1, false);
}
break;
}