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

classSyncSharedMemory {

public__construct(string$name, int$size)

publicfirst(): bool

publicread(int$start = 0, int$length = ?)

publicsize(): int

publicwrite(string$string = ?, int$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

Table of Contents