[erlang-questions] clarify: order of messages

KatolaZ <>
Sun Nov 18 12:24:13 CET 2007


On Sun, Nov 18, 2007 at 11:28:14AM +0100, Matej Kosik wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Hello,
> 
> When one process sequentially sends two messages of the same "shape" (for example `Msg1' and
> `Msg2'), is there some rule enforced concerning the order in which (via same receive pattern) will
> they be received?
> 
> Suppose a situation when `Msg2' was delivered before `Msg1' was processed.
> 
> Can I assume that `Msg1' will be received always before `Msg2' (if I use the same message pattern)?
> 

If both Msg1 and Msg2 are sent (in this order) from the same process
to the same process (shape), then you are sure that Msg1 will be 
"processed" (i.e. extracted from the message queue) before Msg2. 

HND

Enzo 

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