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.
The return value is an array whose keys and values
have the following meanings:
表 1Array 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 number of bytes of space currently available in the queue to hold sent messages until they are received. |
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. |
See also:
msg_remove_queue()
,
msg_receive()
,
msg_stat_queue()
and
msg_set_queue()
.
This function was introduced in PHP 4.3.0 (not yet
released).