c9731c5f17
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. |
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| CMakeLists.txt | ||
| minimal-raw-file.c | ||
| README.md | ||
lws minimal ws server
This demonstrates adopting a file descriptor into the lws event loop. The filepath to open and adopt is given as an argument to the example app, eg
$ ./lws-minimal-raw-file <file>
On a Linux system, some example files for testing might be
- /proc/self/fd/0 (stdin)
- /dev/ttyUSB0 (a USB <-> serial converter)
- /dev/input/event (needs root... input device events)
The example application opens the file in the protocol init handler, and hexdumps data from the file to the lws log as it becomes available.
This isn't very useful standalone as shown here for clarity, but you can freely combine raw file descriptor adoption with other lws server and client features.
Becuase raw file events have their own callback reasons, the handlers can be integrated in a single protocol that also handles http and ws server and client callbacks without conflict.
build
$ cmake . && make
usage
$ ./lws-minimal-raw-file /proc/self/fd/0
[2018/03/22 10:48:53:9709] USER: LWS minimal raw file
[2018/03/22 10:48:53:9876] NOTICE: Creating Vhost 'default' port -2, 1 protocols, IPv6 off
[2018/03/22 10:48:55:0037] NOTICE: LWS_CALLBACK_RAW_ADOPT_FILE
[2018/03/22 10:48:55:9370] NOTICE: LWS_CALLBACK_RAW_RX_FILE
[2018/03/22 10:48:55:9377] NOTICE:
[2018/03/22 10:48:55:9408] NOTICE: 0000: 0A .
The example logs above show the result of typing the Enter key.