IPC Shared Memory - PHP Classes

Name:	IPC Shared Memory Support forum
Base name:	`ipc_sharedmem`
Description:	Access data stored in shared memory containers
Version:	`-`
Required PHP version:	`-`
License:	GNU Lesser General Public License (LGPL)
All time users:	1467 users
All time rank:	1827
Week users:	2 users
Week rank:	2470

	Author		Groups		Detailed description		Freshmeat project

	User ratings		Dependents		Applications		Files

Author

Name:	Craig Manley `<e-mail contact>`
Published packages:	5 Browse this author's classes
Country:	The Netherlands - PHP jobs in The Netherlands
Home page:	???
Age:	???
All time rank:	187
Week rank:	318

Innovation Award

January 2005
Number 3

Using shared memory is a solution for exchanging information between two or more processes or programs, that may or may not be running at the same time, in the same computer or even in different computers.

The uses of shared memory can be for instance: accessing to information application variables, exchanging messages between programs, etc..

Depending on the requirements of the applications that can benefit from its use, shared memory can be implemented using for instance OS specific shared memory extensions, memory mapped files and database accessible remotely via a network.

This class implements an abstracted solution that provides a single interface for accessing storing and retrieving information from different types of shared memory containers, thus making it possible to switch between container types as the requirements of an application evolve.

Manuel Lemos

Groups

	PHP 5	Classes using PHP 5 specific features	View top rated classes
	System information	Information about servers, processes and operating system facilities	View top rated classes

Detailed description

This is a package that can be used to share information between different processes using several types of shared memory containers.

A few shared memory container classes are provided implementing the same interface: file based, SysV shm, MySQL record.

The interface has functions for atomically fetching or storing shared memory data and also functions to start or finish transactions that allow multiple read or write access operations to be safely execute assuring the necessary integrity.

Freshmeat project

Project record:	`ipc_sharedmem`
Popularity score:	13.78
Vitality score:	0.0

User ratings

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`Good (87.5%)`	`Good (87.5%)`	`Sufficient (75.0%)`	`Sufficient (68.8%)`	`-`	`-`	`Sufficient (66.9%)`	296
Month:	Not yet rated by the users

Packages that need this class

Class	Dependency	Why it is needed
Authen_DAP	Required	for shared memory

Applications that use this class

No application links were specified for this class.

If you know an application of this package, send a message to the author to add a link here.

Files

File	Role	Description
`File.php`	Class	File based shared memory class.
`MySQL.php`	Class	MySQL based shared memory class.
`README.TXT`	Doc.	Instructions
`SharedMem.php`	Class	Common Interface class.
`ShmOp.php`	Class	PHP shmop and sysvsem extensions based shared memory class.
`tfile_atomic.php`	Example	Example/test script for IPC_SharedMem_File class.
`tfile_trans.php`	Example	Example/test script for IPC_SharedMem_File class.
`tmysql_atomic.php`	Example	Example/test script for IPC_SharedMem_MySQL class.
`tmysql_trans.php`	Example	Example/test script for IPC_SharedMem_MySQL class.
`tshmop_atomic.php`	Example	Example/test script for IPC_SharedMem_ShmOp class.
`tshmop_trans.php`	Example	Example/test script for IPC_SharedMem_ShmOp class.

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Class: IPC Shared Memory

Innovation Award