498a4e2bd7
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 |
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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.