msgrcvID
,VAR
,SIZE
,TYPE
,FLAGS
This function calls
the msgrcv(2) system call to receive a message from
message queue ID into variable VAR
with a maximum
message size of SIZE
. See
msgrcv(2) for details. When a message is received,
the message type will be the first thing in VAR
, and
the maximum length of VAR
is
SIZE
plus the size of the message type. The function
returns true if successful, or false if there is an error. On error, it puts
the error code into $!. Before calling, you
should say:
require "ipc.ph"; require "msg.ph";
This function is available only on machines supporting System V IPC.