mod_shm_counter

mod_shm_counter is an example Apache 2.0 module that demonstrates a number of concepts that are crucial for high-performance Apache modules:

• Shared Memory
  • apr_shm_create
  • apr_shm_baseaddr_get
  • apr_shm_attach
  • Proper Pool Use
  • Proper operation within Apache 2.0 Request Lifecycle
• Global Mutexes
  • apr_global_mutex_create
  • apr_global_mutex_child_init
  • apr_global_mutex_lock
  • apr_global_mutex_unlock
  • Proper Pool Use
  • Proper operation within Apache 2.0 Request Lifecycle

We would love to hear back from you! Please send us your comments and suggestions. Patches are always greatly appreciated.

License

mod_shm_counter is released under the following terms:

/* ====================================================================
* Copyright (c) 2002 Aaron Bannert
* All rights reserved.
*
* Redistribution and use in source an binary forms, with or without
* modification, are perimtted.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*/

Downloads

Version 1.0 (18-Jun-2002)

• mod_shm_counter-1.0.tar.gz (contains build support scripts)
• mod_shm_counter.c