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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 raw serial example
This demonstrates adopting a file descriptor representing a serial device into the event loop, printing a string on it every couple of seconds and showing any serial that is received.
The serial terminal is configured for 115200 8N1.
$ ./lws-minimal-raw-serial <tty, eg, /dev/ttyUSB0>
build
$ cmake . && make
usage
[2019/12/08 16:30:53:4436] U: LWS minimal raw serial
[2019/12/08 16:30:53:5016] E: callback_ntpc: set up system ops for set_clock
[2019/12/08 16:30:54:8061] N: callback_ntpc: Unix time: 1575822654
[2019/12/08 16:30:54:8253] N: LWS_CALLBACK_RAW_ADOPT_FILE
[2019/12/08 16:30:54:8364] N: callback_ntpc: LWS_CALLBACK_RAW_CLOSE
[2019/12/08 16:30:54:8456] N: LWS_CALLBACK_RAW_WRITEABLE_FILE
[2019/12/08 16:30:56:8455] N: LWS_CALLBACK_RAW_WRITEABLE_FILE
[2019/12/08 16:30:58:8460] N: LWS_CALLBACK_RAW_WRITEABLE_FILE
[2019/12/08 16:30:59:1570] N: LWS_CALLBACK_RAW_RX_FILE
[2019/12/08 16:30:59:1604] N:
[2019/12/08 16:30:59:1641] N: 0000: 62 b
[2019/12/08 16:30:59:1644] N:
[2019/12/08 16:31:00:8463] N: LWS_CALLBACK_RAW_WRITEABLE_FILE
[2019/12/08 16:31:01:6392] N: LWS_CALLBACK_RAW_RX_FILE
[2019/12/08 16:31:01:6397] N:
[2019/12/08 16:31:01:6407] N: 0000: 65 e
[2019/12/08 16:31:01:6411] N:
[2019/12/08 16:31:02:8463] N: LWS_CALLBACK_RAW_WRITEABLE_FILE
... .
The remote serial connection will show the string sent every 2s.