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Clearer client init

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This commit is contained in:
Sergey Lyubka 2021-11-01 13:29:44 +00:00
parent bf88167152
commit 2016586475
1 changed files with 11 additions and 10 deletions
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21
examples/mqtt-client/main.c
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@ -13,7 +13,8 @@
#include "mongoose.h"
static const char *s_url = "mqtt://broker.hivemq.com:1883";
static const char *s_topic = "mg/test";
static const char *s_topic = "mg/mq-clnt-test";
static int s_qos = 1;
static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
if (ev == MG_EV_ERROR) {
@ -47,16 +48,16 @@ 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;
struct mg_mqtt_opts opts = {.qos = s_qos,
.will_topic = mg_str(s_topic),
.will_message = mg_str("goodbye")};
bool done = false; // Event handler sets this to true
mg_mgr_init(&mgr); // Initialise event manager
mg_mqtt_connect(&mgr, s_url, &opts, fn, &done); // Create client connection
while (done == false) mg_mgr_poll(&mgr, 1000); // Event loop
while (done == false) mg_mgr_poll(&mgr, 1000); // Loop until done
mg_mgr_free(&mgr); // Finished, cleanup
return 0;
}