CurryInfo: global-3.2.0 / Data.Global.readGlobalP
definition: 
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readGlobalP :: Read a => GlobalP a -> IO a
readGlobalP (GlobalP f) = exclusiveIO (f ++ ".LOCK") $ do
cnt <- openFile f ReadMode >>= hGetContents
case reads cnt of
[(x,_)] -> return x
_ -> error $ "Cannot read persistent global entity in file: " ++ f ++
"\nFile contents:\n" ++ cnt
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demand:
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argument 2 |
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deterministic:
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deterministic operation |
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documentation:
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Reads the current value of a persistent global entity. |
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failfree:
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(_, _) |
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indeterministic:
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referentially transparent operation |
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infix:
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no fixity defined |
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iotype:
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{(_,{GlobalP}) |-> _}
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name:
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readGlobalP |
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precedence:
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no precedence defined |
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result-values:
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_ |
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signature:
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Prelude.Read a => GlobalP a -> Prelude.IO a |
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solution-complete:
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operation might suspend on free variables |
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terminating:
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possibly non-terminating |
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totally-defined:
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reducible on all ground data terms |