dm_mqueue_attributes Function

public function dm_mqueue_attributes(mqueue, flags, max_msg, msg_size, cur_msgs) result(rc)

Returns message queue attributes.

The function returns the following error codes:

• E_INVALID if message queue descriptor is invalid.
• E_MQUEUE if system call to get the attributes failed.

Arguments

Type	Intent	Optional	Attributes		Name
type(mqueue_type),	intent(inout)			::	mqueue	Message queue type.
integer(kind=i8),	intent(out),	optional		::	flags	Flags.
integer(kind=i8),	intent(out),	optional		::	max_msg	Maximum number of messages in queue.
integer(kind=i8),	intent(out),	optional		::	msg_size	Message size.
integer(kind=i8),	intent(out),	optional		::	cur_msgs	Current number of messages in queue.

Return Value integer