IPC::Msg

System V Msg IPC object class. Uses constants defined in IPC::SysV.

$msg = new IPC::Msg(key, flags) 

Creates a new message queue associated with key and uses flags to set the permissions. Creates the new message queue if the following are true:

• key is equal to IPC_PRIVATE.
• key doesn't already have an associated message queue, and FLAGS & IPC_CREAT is true.

$msg->id 

Returns the system identifier for the message queue.

$msg->rcv(buf, len[, type[, flags]]) 

Reads a message from the queue, returning the type of the message.

$msg->remove 

Removes and destroys the message queue.

$msg->set(stat) $msg->set(name=>value[,name=>value...]) 

Accepts either a stat object as returned by the stat method or a list of name/value pairs and sets the following values of the stat structure associated with the message queue:

uid gid mode (the permission bits) qbytes

$msg->snd(type, msg[, flags]) 

Puts a message of type type on the queue with the data from msg. See the msgsnd function.

$ds = $msg->stat 

Returns an object of type IPC::Msg::stat (which is a subclass of Class::Struct) that provides the following fields:

uid gid cuid cgid mode qnum qbytes lspid lrpid stime rtime ctime

See the stat function and your system documentation for more information.