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

History

Andy Green 498a4e2bd7 sul: all timed objects use a single pt sul list wsi timeout, wsi hrtimer, sequencer timeout and vh-protocol timer all now participate on a single sorted us list. The whole idea of polling wakes is thrown out, poll waits ignore the timeout field and always use infinite timeouts. Introduce a public api that can schedule its own callback from the event loop with us resolution (usually ms is all the platform can do). Upgrade timeouts and sequencer timeouts to also be able to use us resolution. Introduce a prepared fakewsi in the pt, so we don't have to allocate one on the heap when we need it. Directly handle vh-protocol timer if LWS_MAX_SMP == 1		2019-08-09 10:12:09 +01:00
..
CMakeLists.txt	minimal-ws-client-ping	2018-05-09 17:00:37 +08:00
libwebsockets.org.cer	minimal-ws-client-ping	2018-05-09 17:00:37 +08:00
minimal-ws-client-ping.c	sul: all timed objects use a single pt sul list	2019-08-09 10:12:09 +01:00
README.md	minimal-ws-client: fix couple of breakages	2018-12-17 19:09:13 +08:00

README.md

lws minimal ws client PING

This connects to libwebsockets.org using the lws-mirror-protocol.

It then sends a ws PING every 5s and records any PONG coming back.

build

 $ cmake . && make

Commandline Options

Option	Meaning
-d	Set logging verbosity
--server	Use a specific server instead of libwebsockets.org, eg `--server localhost`. Implies LCCSCF_ALLOW_SELFSIGNED
--port	Use a specific port instead of 443, eg `--port 7681`
-z	Send zero-length pings for testing
--protocol	Use a specific ws subprotocol rather than lws-mirror-protocol, eg, `--protocol myprotocol`

usage

Just run it, wait for the connect and then there will be PINGs sent at 5s intervals.

 $ ./lws-minimal-ws-client-ping
[2018/05/09 16:55:03:1160] USER: LWS minimal ws client PING
[2018/05/09 16:55:03:1379] NOTICE: Creating Vhost 'default' (serving disabled), 1 protocols, IPv6 off
[2018/05/09 16:55:03:1715] NOTICE: client loaded CA for verification ./libwebsockets.org.cer
[2018/05/09 16:55:03:1717] NOTICE: created client ssl context for default
[2018/05/09 16:55:04:8332] USER: callback_minimal_broker: established
[2018/05/09 16:55:09:8389] USER: Sending PING 10...
[2018/05/09 16:55:10:1491] USER: LWS_CALLBACK_CLIENT_RECEIVE_PONG
[2018/05/09 16:55:10:1494] NOTICE: 
[2018/05/09 16:55:10:1514] NOTICE: 0000: 70 69 6E 67 20 62 6F 64 79 21                      ping body!      
[2018/05/09 16:55:10:1515] NOTICE: 
...