msg_stat_queue Returns information from the message queue data structure

msg_stat_queue

(PHP 4 >= 4.3.0, PHP 5)

msg_stat_queue — Returns information from the message queue data structure

说明

array msg_stat_queue ( resource $queue )

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.