saprykin/plibsys

plibsys is a cross-platform system C library that provides a comprehensive set of low-level programming primitives using only native system calls and zero third-party dependencies. It offers platform-independent data types, threading and synchronization primitives (mutexes, condition variables, read-write locks, semaphores, spinlocks, atomic operations), socket support (TCP, UDP, SCTP) with IPv4 and IPv6, IPC via shared memory and semaphores, hash functions (MD5, SHA-1, SHA-2, SHA-3, GOST), binary trees (BST, red-black, AVL), an INI file parser, high-resolution time profiler, files and directories manipulation, shared library loading, and useful routines for linked lists, strings, and hash tables. The library includes macros for CPU architecture, OS, and compiler detection. It achieves maximum native performance by using multiple implementation models per platform (e.g., POSIX, Win32, Solaris). plibsys is extensively tested on desktop platforms (GNU/Linux, macOS, Windows, BSDs, Solaris, AIX, HP-UX, OpenVMS, OS/2, Haiku, etc.) and mobile platforms (iOS, tvOS, Android, BlackBerry 10). It is built with CMake and distributed under the MIT license.