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b3131fdfdd
Establish a new distributed CMake architecture with CMake code related to a source directory moving to be in the subdir in its own CMakeLists.txt. In particular, there's now one in ./lib which calls through to ones further down the directory tree like ./lib/plat/xxx, ./lib/roles/xxx etc. This cuts the main CMakelists.txt from 98KB -> 33KB, about a 66% reduction, and it's much easier to maintain sub-CMakeLists.txt that are in the same directory as the sources they manage, and conceal all the details that that level. Child CMakelists.txt become responsible for: - include_directories() definition (this is not supported by CMake directly, it passes it back up via PARENT_SCOPE vars in helper macros) - Addition child CMakeLists.txt inclusion, for example toplevel -> role -> role subdir - Source file addition to the build - Dependent library path resolution... this is now a private thing in the child CMakeLists.txt, it just passes back any adaptations to include_directories() and the LIB_LIST without filling the parent namespace with the details |
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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.