Hello.
I have next problem: I have a network client that connects to server,
listens for messages and generate responces. So the control flow can be
represended as:
server -- input -> {generate output} -> output
Output can be generated using default implementation or can overriden by
user.
The main difficulty appeares when I need to add a user program on the top
of this logic,
i.e. from user-side I want to have dsl:smth like
withClient $ do
x <- send message
waitFor x
timeout 5000000
forever $ sendRandomMessage
i.e. an ability to send messages, waiting for some event (message to come),
waiting for
timeout.
The question is how to define such logic without a big overhead. I see a
solution using conduit, it's possible to create 3 processes: listener,
user, sender.
+----> user ----+
| |
-input -> listener +----------------->+---- sender ->
and use TQueue or TChan to send messages between them, however there can be
another possible solutions, that uses less resources, or another design.
--
Alexander
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