state-threads
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ossrs
Support Multiple Threads for Linux and Darwin only.
For WebRTC or UDP transport system, multiple threads or CPUs is essential important, please read https://github.com/ossrs/srs/issues/2188
The first step, is to simplify the state-threads. We should remove the dead code for UDP server:
- [x] Remove multiple OS support, only for Linux(CentOS,Ubuntu,etc) and Darwin(macOS).
- [x] Remove the examples and extensions.
- [x] Remove the poll support, only Linux epoll and Darwin kqueue.
- [x] Remove the support for multiple processes, for single process only.
- [x] Stack always grows from top to down.
- [x] Remove the deprecated serialize accept.
Then, we should use gcc __thread for multiple threads:
- [x] Support gtest and gocv/gcovr coverage analysis.
- [x] Change all global or static variables to __thread, see toffaletti befca4dfbd, 9b617a6a02, f0ebf18d8f, 527931ce8e.
- [ ] Add utest for threads and codes.
UTest and coverage for ST is introduced by SRS#1b2822a5a4, of course, it'll be merged to this repository if done.
对ST做了大幅度简化：https://github.com/ossrs/state-threads/commit/eda23b223ff901589952f0501038c959c88dd340
For #19: Simplify ST, only support LINUX and DARWIN
1. Remove examples and extensions.
2. Remove OS support, except LINUX and DARWIN.
3. Rename md.S to md_linux.S, remove __ia64__ support.
4. Remove events support, except kqueue and epoll.
5. Refine utest, add auto/fast.sh support.
简化前，一共是9123行，核心代码5834行：
homeMacOS:state-threads winlin$ wc -l *.h *.c *.S
480 common.h
645 md.h
176 public.h
1446 event.c
922 io.c
121 key.c
783 sched.c
173 stk.c
368 sync.c
644 md.S
76 md_darwin.S
5834 total
简化后，核心代码4448行：
homeMacOS:state-threads winlin$ wc -l *.h *.c *.S
473 common.h
232 md.h
174 public.h
913 event.c
815 io.c
121 key.c
751 sched.c
173 stk.c
368 sync.c
76 md_darwin.S
352 md_linux.S
4448 total
一共简化了1386行代码，23%左右代码。简化后，UTest和覆盖的难度降低了，之前存在大量无法覆盖的代码。
简化后，只支持LINUX和DARWIN平台，事件框架只支持kqueue和epoll。