gtpd3m0tLibrary Guide with Master Index and Glossary

Q

QCE
Queue control element.

QDIO
Queued direct input/output (I/O).

queue An MQSeries object. Message queuing applications can put messages on, and get messages from, a queue. A queue is owned and maintained by a queue manager. Local queues can contain a list of messages waiting to be processed. Queues of other types cannot contain messages--they point to other queues or can be used as models for dynamic queues.
A first-in-first-out (FIFO), or ordered, collection of mail items.

queue control element (QCE)
A user-specified control block that is used by the queue manager in SNA communications to keep queue message management information.

queue manager
(1) Provides a basic set of tools for performing SNA message queuing functions. (2) A system program that provides queuing services to applications. It provides an application programming interface so that programs can access messages on the queues that the queue manager owns.

queued direct input/output (QDIO)
A link layer in the TPF system that is used to communicate with the Open Systems Adapter (OSA)-Express card.

quick enter directory
A table of addresses used by the quick enter linkage routine to branch to C library functions. Synonymous with primary directory.

quick enter linkage
A TPF method providing fast linkage to C library functions by using a function number provided by the compiler to index into the quick enter directory and branch to the function.

quota
In TPF Internet mail server support, the maximum amount of storage allowed for one or more mailboxes. A quota is applied to a quota root. See also quota root.

quota root
In TPF Internet mail server support, the point in a mailbox naming hierarchy where a quota, or storage limit, is set. A quota root is created when you enter the ZMAIL SETQUOTA command. See also quota.