Comments on: AS/400 message queue http://itknowledgeexchange.techtarget.com/itanswers/as400-message-queue/ Fri, 24 May 2013 06:06:29 +0000 hourly 1 By: tomliotta http://itknowledgeexchange.techtarget.com/itanswers/as400-message-queue/#comment-78277 tomliotta Thu, 17 Jun 2010 18:08:21 +0000 #comment-78277 First, unless you maintain strict control over what messages may be sent to your message queue, it doesn’t make much sense to “write it in a PF”. A PF isn’t very well suited for many messages.

Second, yes, RCVMSG will return one message at a time. If you need to collect sets of messages, use the List Nonprogram Messages (QMHLSTM) API and process each set before requesting the next.

Third, to handle old messages with RCVMSG, review the PGM() and RESET() parameters of the CHGMSGQ command. In particular, note the {help} text reference to message keys. You can receive any message if you know its message key.

Tom

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