C posix pthread extension

pthread_ext.h is an extension for POSIX pthread: thread pool, channel, task group.

Features

• not a toy
• single-header
• flexible API
• highly optimized
• manual memory control

Components

• thread pool + attributes
• task group + attributes
• pipe-based channel

Requirements

• POSIX-compatible environment
• C89 compiler

Benchmark

Pool	Runtime (ms)
pthread_pool_t (noalloc)	~65
pthread_pool_t (batch)	~82
pthread_pool_t (default)	~100
boost::asio::thread_pool	~145
BS::thread_pool	~144
TBB	~22

See BENCHMARK.md for full details and its code

Notes

• examples are in main.c
• on Windows native pthread_kill is broken — so here it's replaced with thread context manipulation