 | |
| Developer(s) | Apache Software Foundation |
|---|---|
| Stable release | 1.7.4
/ April 16, 2023[1] |
| Repository | |
| Written in | C |
| Operating system | Cross-platform |
| Type | Development library |
| License | Apache License 2.0 |
| Website | apr |
The Apache Portable Runtime (APR) is a supporting library for the Apache web server. It provides a set of APIs that map to the underlying operating system (OS).[2] Where the OS does not support a particular function, APR will provide an emulation. Thus programmers can use the APR to make a program truly portable across platforms.
APR originally formed a part of Apache HTTP Server, but the Apache Software Foundation spun it off into a separate project. Other applications can use it to achieve platform independence.
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Transcription
Functionality
The range of platform-independent functionality provided by APR includes: [3]
- Memory allocation and memory pool functionality
- Atomic operations
- Dynamic library handling
- File I/O
- Command-argument parsing
- Locking
- Hash tables and arrays
- Mmap functionality
- Network sockets and protocols
- Thread, process and mutex functionality
- Shared memory functionality
- Skip list functionality
- Time routines
- User and group ID services
Similar projects
- GLib – provides similar functionality. It supports many more data structures and OS-independent functions, but fewer IPC-related functions. (GLib lacks local and global locking and shared-memory management.)
- Netscape Portable Runtime (NSPR) is a cross-platform abstraction library used by the Mozilla project. It is used by another subproject of Mozilla application framework (XPFE) to provide cross-platform graphical user interface (GUI) functionality.
- Adaptive Communication Environment (ACE) is an object-oriented library written in C++ similar in functionality to APR. It is widely deployed in commercial products.[4]
- commonc++ is a cross-platform C++ class library for systems programming, with much of the same functionality as APR.
- POCO is a modern C++ framework similar in concept but more extensive than APR.
- WxWidgets is an object-oriented cross-platform GUI library that also provides abstraction classes for database communication, IPC and networking functionality.
- KDE Frameworks – used by KDE SC
References
- ^ "Apache Portable Runtime APR 1.7.4 Released". Retrieved 7 October 2023.
- ^ Stable Apache Release Hits, Sean Michael Kerner, 2 December 2005, "Apache Portable Runtime (APR) 1.0 API, which provides libraries that interface between the underlying operating system and the server."
- ^ "Apache Portable Runtime modules". Apache. Retrieved 23 September 2023.
- ^ "ACE and TAO Success Stories". Archived from the original on 29 August 2008. Retrieved 2008-07-31.
External links
Wikibooks has a book on the topic of: Apache Portable Runtime
This page was last edited on 7 October 2023, at 15:18