Apache Portability Runtime library

Modules
	Platform Definitions
	Internal Memory Allocation
	Atomic Operations
	Dynamic Object Handling
	Functions for manipulating the environment
	Error Codes
	Escape functions
	File Information
	File I/O Handling Functions
	Filename Matching Functions
	Miscellaneous library routines
	Command Argument Parsing
	Global Locking Routines
	Hash Tables
	General Purpose Library Routines
	MMAP (Memory Map) Routines
	Network Routines
	Poll Routines
	Memory Pool Functions
	Portability Routines
	Process Locking Routines
	Random Functions
	Ring Macro Implementations
	Shared Memory Routines
	Signal Handling
	Skip list implementation
	String routines
	Internal APR support functions
	Table and Array Functions
	Condition Variable Routines
	Thread Mutex Routines
	Threads and Process Functions
	Reader/Writer Lock Routines
	Time Routines
	User and Group ID Services