Re: Simp,e example for 2 tasks

[Stribor40 <ikamzic@gmail.com>]

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> >Would anyone be able to post simple example of ada program showing 2 tasks taking to each other please.  For example one task sends message to another saying "hi" and second tasks replying "hi back". 
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> >I am having troubles finding example of simple program like this online
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> 	Well... The problem domain is slightly under-specified.
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> 	Ada doesn't "send message" in the way you may be thinking. It's more a
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> "pass a note during a handshake" (Rendezvous).
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> 	The problem with your description is that of sequencing. A straight
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> linear interpretation is:
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> Task A										Task B
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> begin										begin
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> rendezvous with Task B					wait for rendezvous from any task
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> 												end rendezvous
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> wait for rendezvous from any task			rendezvous with Task A
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> 	end rendezvous
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> end											end
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> 	There is nothing being passed there -- the rendezvous itself is the
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> "message". There is also no work being done inside the rendezvous. AND the
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> sequence is pretty much lock-step: B does nothing until A connects, then A
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> does nothing until B decides to connect to it.
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> 	An alternative would be using an IN and OUT parameter on the rendezvous
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> begin										begin
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> rendezvous with B("Hello", reply)			wait for rendezvous(IN msg,
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> 																OUT reply)
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> 												reply = "Hello Back"
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> 												end rendezvous
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> end											end
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> 	Here there is only one rendezvous... one "handshake"; A does nothing
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> during the rendezvous until B ends the rendezvous after doing whatever it
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> wants (setting reply).
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> 											
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> -- 
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can I be greedy and ask you can make actuall code that will compile so i can play with it please.