Message Passing: Difference between revisions

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==Variable or Fixed Messages Size==
A message typically includes the ID of the emitting thread (or a replying port), a message code and a few arguments. Message queuingqueueing and dispatching code can be greatly simplified if message size is fixed.
 
When messages longer than the fixed-size are required, one will need to provide a way to describe the long message in the small structure. If copying a 4-word message forth and back doesn't imply excessive processing cost, it will be very different for the 1MB of data you send to a disk server. In that case, it is suggested to toy with paging in order to map the real data from the emitter to the receiver's address space.
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===Forum===
*[[Topic:10116|passing messages through registers]]
*[[Topic:10922|RPC message size, handling oversizedover sized messages]]
==External Links==
*[[Wikipedia:Message Passing]]
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