2440 (0988) (RC2440): MQRC_SUB_NAME_ERROR

Explanation

On the MQSUB call in the Subscription Descriptor MQSD the SubName field is not valid or has been omitted. This is required if the MQSD option MQSO_DURABLE is specified, but may also be used if MQSO_DURABLE is not specified.

One of the following applies:
  • SubName.VSLength is greater than zero, but SubName.VSOffset is zero and SubName.VSPtr is the null pointer.
  • SubName.VSOffset is nonzero and SubName.VSPtr is not the null pointer (that is, it appears both fields are being used where only one is allowed).
  • SubName.VSPtr is not a valid pointer.
  • SubName.VSOffset or SubName.VSPtr points to storage that is not accessible.
  • SubName.VSLength is zero but this field is required.
  • SubName.VSLength exceeds the maximum length allowed for this field.

Completion code

MQCC_FAILED

Programmer response

Ensure that SubName is specified and SubName.VSLength is nonzero. Ensure that one of SubName.VSOffset or SubName.VSPtr is zero and the other nonzero. Ensure that the field used points to accessible storage. Specify a length that does not exceed the maximum length allowed for this field.

This code can be returned if the sd.Options flags MQSO_CREATE and MQSO_RESUME are set together and sd.SubName is not initialized. You must also initialize the MQCHARV structure for sd.SubName, even if there is no subscription to resume; see Example 2: Managed MQ subscriber for more details.