Kingpin is a C++ network library based on TCP/IP + epoll + pthread for the high concurrent servers and clients. Inspired by nginx / muduo.

• One connected socket handled only by one thread.

• Thread pool and IO multiplexing for both server's and client's concurrency.

• IO threads compete for listening socket or target host pool in server and client.

• Avoid excessive wrapper of classes and functions to get things complicated.

Please refer to: Quick Start

• Linux: Support epoll, and glibc > 2.15 to avoid pthread_rwlock deadlock bug!

• g++: Support C++ 11.

• googletest / cmake / make.

• IOHandler.h: Both server's and client's IO thread.

• TPSharedData.h: Data shared among thread pool.

• EpollTP.h: Thread pool initialized by IOHandler and TPSharedData.

• AsyncLogger.h: Thread safe logger, using backend thread for asynchronous output, line buffered.

• Buffer.h: IO Buffer pre-allocated on heap, support nonblock socket and disk fd. NOT thread safe.

• Mutex.h: Easy to debug wrapper for read-write lock and recursive lock in libpthread.

• Context.h: Function call timeout wrapper.

• Utils.h: Some utility functions.

A wealth of cases:

• Chinese Chess Game: Chess game server and client, also implements a high concurrency test client.

• File Transfer: File transfer server and client, IO and exceptions are both well handled.

Build and run:

$ mkdir build && cd build
$ cmake .. && make
$ cd unittest && ctest