mirror of https://github.com/warmcat/libwebsockets.git synced 2025-03-23 00:00:06 +01:00

History

Andy Green b6004e08c9 mqtt: allow indicating client_id is not on heap Not sure why we don't leave any freeing to the caller, but since we don't allow indicating that the provided client id should not be freed.		2021-10-05 07:09:47 +01:00
..
CMakeLists.txt	cmake: latest cmake shows dep warnings for scripts < 2.8.12	2020-12-06 19:44:54 +00:00
minimal-mqtt-client.c	mqtt: allow indicating client_id is not on heap	2021-10-05 07:09:47 +01:00
mosq-ca.crt	client: MQTT	2020-03-04 12:17:49 +00:00
mosq-server.crt	client: MQTT	2020-03-04 12:17:49 +00:00
mosq-server.key	client: MQTT	2020-03-04 12:17:49 +00:00
README.md	client: MQTT	2020-03-04 12:17:49 +00:00

README.md

lws minimal MQTT client

The application connects to a broker at localhost 1883 (unencrypted) or 8883 (tls)

build

 $ cmake . && make

usage

Commandline option	Meaning
-d	Debug verbosity in decimal, eg, -d15
-s	Use tls and connect to port 8883 instead of 1883

Start mosquitto server locally

$ mosquitto

Run the example

[2020/01/31 10:40:23:7789] U: LWS minimal MQTT client unencrypted [-d<verbosity>][-s]
[2020/01/31 10:40:23:8539] N: lws_mqtt_generate_id: User space provided a client ID 'lwsMqttClient'
[2020/01/31 10:40:23:9893] N: _lws_mqtt_rx_parser: migrated nwsi 0x50febd0 to sid 1 0x5106820
[2020/01/31 10:40:23:9899] U: callback_mqtt: MQTT_CLIENT_ESTABLISHED
[2020/01/31 10:40:23:9967] U: callback_mqtt: WRITEABLE: Subscribing
[2020/01/31 10:40:24:0068] U: callback_mqtt: MQTT_SUBSCRIBED

Send something to the test client

mosquitto_pub -h 127.0.0.1 -p 1883 -t test/topic0 -m "hello"

Observe it received at the test client

[2020/01/31 10:40:27:1845] U: callback_mqtt: MQTT_CLIENT_RX
[2020/01/31 10:40:27:1870] N: 
[2020/01/31 10:40:27:1945] N: 0000: 74 65 73 74 2F 74 6F 70 69 63 30                   test/topic0     
[2020/01/31 10:40:27:1952] N: