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d3308df40f
Add support for external pthreads lib on windows and some docs about how to do. It can build with LWS_WITH_THREADPOOL and LWS_WITH_MINIMAL_EXAMPLES including the pthreads-dependent ones without warnings or errors on windows platform as well with this. pthreads_t can be anything, including a struct - not a pointer-to-a-struct but the struct itself. These can't be cast to a void * for printing as they can on linux, where the base type is a pointer. Let's fix all the usage of those to determine their own thread index in terms of the meaning to the program rather than as a tid. |
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| .. | ||
| mount-origin | ||
| CMakeLists.txt | ||
| localhost-100y.cert | ||
| localhost-100y.key | ||
| minimal-http-server-smp.c | ||
| README.md | ||
lws minimal http server with multithreaded service
Lws supports multithreaded service... build lws with -DLWS_MAP_SMP=<max number of threads>, the
default is 1. If nonzero, some extra pthreads locking is built into lws and it supports multiple
independent service threads.
When an incoming connection is accepted, it is bound to the pt with the lowest current wsi count, to keep the load on the threads balanced. Only the pt the wsi is bound to can service the thread, so although there can be as many wsi being serviced simultaneously as there are service threads, a wsi can only be service by the pt it is bound to.
The effectiveness of the scalability depends on the load. Here is an example of roughly what can be expected
build
$ cmake . && make
usage
$ ./lws-minimal-http-server-smp
[2018/03/07 17:44:20:2409] USER: LWS minimal http server SMP | visit http://localhost:7681
[2018/03/07 17:44:20:2410] NOTICE: Creating Vhost 'default' port 7681, 1 protocols, IPv6 on
[2018/03/07 17:44:20:2411] NOTICE: Service threads: 10
Visit http://localhost:7681 and use ab or other testing tools