File type that works like a message queue

Is there a file type on the AS/400 that works like message queues? While one program (or many programs) are writing to the bottom of the file, another program is independently reading from the top of the file. The data is presented to the read in FIF0 order. The result of the read is to delete the record from the file. Another need would be to have the reading program wait on a record to show up without having to loop. Kind of like a read to a terminal -- hang a read and wait for the enter key to be pressed to satisfy the read and return control to the program. In the IBM documentation, I have found data queues work this way, but the manual says they should not be allowed to get very large (less than 100 records). Also, in the IBM documentation, I have found references to MQSeries, but I need a solution that does not require another licensed product. Do you have any other solutions more creative that a DB2/400 table.