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    The SyncReaderWriter class

    (PECL sync >= 1.0.0)

    简介

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

    A reader-writer object allows many readers or one writer to access a resource. This is an efficient solution for managing resources where access will primarily be read-only but exclusive write access is occasionally necessary.

    类摘要

    class SyncReaderWriter {
    /* 方法 */
    public __construct(string $name = ?, int $autounlock = 1)
    public readlock(int $wait = -1): bool
    public readunlock(): bool
    public writelock(int $wait = -1): bool
    public writeunlock(): bool
    }

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