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libwebsockets/minimal-examples/ws-client/minimal-ws-client-tx
Andy Green c9731c5f17 type comparisons: fixes
This is a huge patch that should be a global NOP.

For unix type platforms it enables -Wconversion to issue warnings (-> error)
for all automatic casts that seem less than ideal but are normally concealed
by the toolchain.

This is things like passing an int to a size_t argument.  Once enabled, I
went through all args on my default build (which build most things) and
tried to make the removed default cast explicit.

With that approach it neither change nor bloat the code, since it compiles
to whatever it was doing before, just with the casts made explicit... in a
few cases I changed some length args from int to size_t but largely left
the causes alone.

From now on, new code that is relying on less than ideal casting
will complain and nudge me to improve it by warnings.
2021-01-05 10:56:38 +00:00
..
CMakeLists.txt cmake: latest cmake shows dep warnings for scripts < 2.8.12 2020-12-06 19:44:54 +00:00
minimal-ws-client.c type comparisons: fixes 2021-01-05 10:56:38 +00:00
README.md minimal: ws-client-tx and change dir names to match project name 2018-04-06 10:38:03 +08:00

lws minimal ws client tx

This demonstrates a ws "publisher" to go with the minimal-ws-broker example.

Two threads are spawned that produce messages to be sent to the broker, via a local ringbuffer. Locking is provided to make ringbuffer access threadsafe.

When a nailed-up client connection to the broker is established, the ringbuffer is sent to the broker, which distributes the events to all connected clients.

build

 $ cmake . && make

usage

This example connects to ws-server/minimal-ws-broker, so you need to build and run that in another terminal.

 $ ./lws-minimal-ws-client-tx
[2018/03/16 16:04:33:5774] USER: LWS minimal ws client tx
[2018/03/16 16:04:33:5774] USER:   Run minimal-ws-broker and browse to that
[2018/03/16 16:04:33:5774] NOTICE: Creating Vhost 'default' port -1, 1 protocols, IPv6 off
[2018/03/16 16:04:34:5794] USER: callback_minimal_broker: established

If you open a browser on http://localhost:7681 , you will see the subscribed messages from the threads in this app via the broker app.