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In reply to jamesp: If you implement queuing of message for each application and stall the sender until a reply is received, you run a very big risk of creating race conditions and deadlocks. You certainly would not be able to allow a second message to be sent until the first had been completed, therefor just delaying the onset of effective CMT. In RISC OS here is only a limited amount of independent forground activity which can be handled by applications before an interprocesses messaging event occurs and risks being stalled by any applications which are unresponsive.

 is a RISC OS Userdruck on 02/11/05 4:49PM
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