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definition:
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cpnsAlive :: String -> IO Bool
cpnsAlive host = catch tryPingCPNS (\_ -> return False)
where
tryPingCPNS = do
h <- connectToSocket host cpnsSocket
hPutStrLn h (show Ping)
hFlush h
answer <- hWaitForInput h cpnsTimeOut
hClose h
return answer
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demand:
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no demanded arguments
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deterministic:
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deterministic operation
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documentation:
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Tests whether the CPNS demon at a host is alive, i.e.,
reacts on `Ping` message.
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failfree:
|
_
|
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indeterministic:
|
referentially transparent operation
|
|
infix:
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no fixity defined
|
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iotype:
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{(_) |-> _}
|
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name:
|
cpnsAlive
|
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precedence:
|
no precedence defined
|
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result-values:
|
_
|
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signature:
|
String -> Prelude.IO Prelude.Bool
|
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solution-complete:
|
operation might suspend on free variables
|
|
terminating:
|
possibly non-terminating
|
|
totally-defined:
|
possibly non-reducible on same data term
|