The SyncSemaphore class

    (PECL sync >= 1.0.0)

    Introduction

    A cross-platform, native implementation of named and unnamed semaphore objects.

    A semaphore restricts access to a limited resource to a limited number of instances. Semaphores differ from mutexes in that they can allow more than one instance to access a resource at one time while a mutex only allows one instance at a time.

    Class synopsis

    classSyncSemaphore {
    public__construct(string$name = ?, int$initialval = 1, bool$autounlock = true)
    publiclock(int$wait = -1): bool
    publicunlock(int&$prevcount = ?): bool
    }

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