百科狗msg_stat_queue() - semaphore函数
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 $queue): arraymsg_stat_queue() returns the message queue meta data for the message queue specified by the$queue. This is useful, for example, to determine which process sent the message that was just received.
参数
$queueMessage queue resource handle
返回值
The return value is an array whose keys and values have the following meanings:
| 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
msg_remove_queue()Destroy a message queuemsg_receive()Receive a message from a message queuemsg_get_queue()Create or attach to a message queuemsg_set_queue()Set information in the message queue data structure
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