The SyncSharedMemory class

(PECL sync >= 1.1.0)

Introduction

A cross-platform, native, consistent implementation of named shared memory objects.

Shared memory lets two separate processes communicate without the need for complex pipes or sockets. There are several integer-based shared memory implementations for PHP. Named shared memory is an alternative.

Synchronization objects (e.g. SyncMutex) are still required to protect most uses of shared memory.

Class synopsis

SyncSharedMemory {

/* Methods */

public __construct ( string $name , integer $size )

public bool first ( void )

public read ([ integer $start = 0 [, integer $length ]] )

public bool size ( void )

public write ([ string $string [, integer $start = 0 ]] )

}

SyncSharedMemory::__construct — Constructs a new SyncSharedMemory object
SyncSharedMemory::first — Check to see if the object is the first instance system-wide of named shared memory
SyncSharedMemory::read — Copy data from named shared memory
SyncSharedMemory::size — Returns the size of the named shared memory
SyncSharedMemory::write — Copy data to named shared memory

The SyncSharedMemory class

Introduction

Class synopsis

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