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  • msg_stat_queue()

    (PHP 4 >= 4.3.0, PHP 5, PHP 7)

    Returns information from the message queue data structure

    说明

    msg_stat_queue(resource $queue): array

    msg_stat_queue() returns the message queue meta data for the message queue specified by the$queue. This is useful, for example, to determine which process sent the message that was just received.

    参数

    $queue

    Message queue resource handle

    返回值

    The return value is an array whose keys and values have the following meanings:

    Array structure for msg_stat_queue
    msg_perm.uid The uid of the owner of the queue.
    msg_perm.gid The gid of the owner of the queue.
    msg_perm.mode The file access mode of the queue.
    msg_stime The time that the last message was sent to the queue.
    msg_rtime The time that the last message was received from the queue.
    msg_ctime The time that the queue was last changed.
    msg_qnum The number of messages waiting to be read from the queue.
    msg_qbytes The maximum number of bytes allowed in one message queue. On Linux, this value may be read and modified via/proc/sys/kernel/msgmnb.
    msg_lspid The pid of the process that sent the last message to the queue.
    msg_lrpid The pid of the process that received the last message from the queue.

    参见

    上篇:msg_set_queue()

    下篇:sem_acquire()