The Set sample programs
The Set sample programs inhibit put operations on a queue by using the MQSET call to change the queue’s InhibitPut attribute. See Features demonstrated in the sample programs for the names of these programs.
The programs are intended to run as triggered programs, so their only input is an MQTMC2 (trigger message) structure that contains the name of a target queue whose attributes are to be inquired. The C version also uses the queue manager name. The COBOL version uses the default queue manager.
For the triggering process to work, ensure that the Set sample program that you want to use is triggered by messages arriving on queue SYSTEM.SAMPLE.SET. To do this, specify the name of the Set sample program that you want to use in the ApplicId field of the process definition SYSTEM.SAMPLE.SETPROCESS. The sample queue has a trigger type of FIRST; if there are already messages on the queue before you run the Request sample, the Set sample is not triggered by the messages that you send.
When you have set the definition correctly:
- For UNIX systems and Windows systems, start the runmqtrm program in one session, then start the amqsreq program in another.
- For i5/OS, start the AMQSERV4 program in one session, then start the AMQSREQ4 program in another. You could use AMQSTRG4 instead of AMQSERV4, but potential job submission delays could make it less easy to follow what is happening.
Use the Request sample programs to send request messages, each containing just a queue name, to queue SYSTEM.SAMPLE.SET. For each request message, the Set sample programs send a reply message containing a confirmation that put operations have been inhibited on the specified queue. The replies are sent to the reply-to queue specified in the request message.
Parent topic:
Sample programs (all platforms except z/OS)
fg17570_