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@@ -0,0 +1,57 @@ +Apache Portable Runtime Library (APR) +------------------------------------- + + The Apache Portable Runtime Library provides a predictable and + consistent interface to underlying platform-specific + implementations, with an API to which software developers may code + and be assured of predictable if not identical behavior regardless + of the platform on which their software is built, relieving them of + the need to code special-case conditions to work around or take + advantage of platform-specific deficiencies or features. + + APR and its companion libraries are implemented entirely in C + and provide a common programming interface across a wide variety + of operating system platforms without sacrificing performance. + Currently supported platforms include: + + UNIX variants + Windows + Netware + Mac OS X + OS/2 + + To give a brief overview, the primary core + subsystems of APR 1.3 include the following: + + Atomic operations + Dynamic Shared Object loading + File I/O + Locks (mutexes, condition variables, etc) + Memory management (high performance allocators) + Memory-mapped files + Multicast Sockets + Network I/O + Shared memory + Thread and Process management + Various data structures (tables, hashes, priority queues, etc) + + For a more complete list, please refer to the following URLs: + + http://apr.apache.org/docs/apr/modules.html + + Users of APR 0.9 should be aware that migrating to the APR 1.x + programming interfaces may require some adjustments; APR 1.x is + neither source nor binary compatible with earlier APR 0.9 releases. + Users of APR 1.x can expect consistent interfaces and binary backwards + compatibility throughout the entire APR 1.x release cycle, as defined + in our versioning rules: + + http://apr.apache.org/versioning.html + + APR is already used extensively by the Apache HTTP Server + version 2 and the Subversion revision control system, to + name but a few. We list all known projects using APR at + http://apr.apache.org/projects.html -- so please let us know + if you find our libraries useful in your own projects! + + |