tibemsMsgProducer_GetTimeToLive

Function

Purpose

Get the time-to-live property of a producer object.

C Declaration

tibems_status tibemsMsgProducer_GetTimeToLive(
    tibemsMsgProducer msgProducer,
    tibems_long* timeToLive );

COBOL Call

CALL "tibemsMsgProducer_GetTimeToLive"
     USING BY VALUE msgProducer,
           BY REFERENCE timeToLive,
           RETURNING tibems-status
END-CALL.
Note: msgProducer has usage pointer.

Parameters

Parameter Description
msgProducer Get the property from this producer.
timeToLive Store the property in this location.

Remarks

Time-to-live (in milliseconds) determines the expiration time of a message.

  • If the time-to-live is non-zero, the expiration is the sum of that time-to-live and the sending client’s current time (GMT). This rule applies even within sessions with transaction semantics—the timer begins with the send call, not the commit call.
  • If the time-to-live is zero, then expiration is also zero—indicating that the message never expires.

Programs can use this property to define a default time-to-live for messages that this producer sends. Individual sending calls can override this default value.

Whenever your application uses non-zero values for message expiration or time-to-live, you must ensure that clocks are synchronized among all the host computers that send and receive messages. Synchronize clocks to a tolerance that is a very small fraction of the smallest or time-to-live.