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36 lines
924 B
Idris
36 lines
924 B
Idris
||| Miscellaneous functions for getting information about the system.
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module System.Info
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%default total
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%extern prim__os : String
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%extern prim__codegen : String
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||| The current operating system.
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export
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os : String
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os = prim__os
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||| The codegen/backend used.
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export
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codegen : String
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codegen = prim__codegen
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||| Whether we are running on MS Windows, either directly or with a compability
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||| layer (e.g. cygwin).
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export
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isWindows : Bool
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isWindows = os `elem` ["windows", "mingw32", "cygwin32"]
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%foreign "C:idris2_getNProcessors, libidris2_support, idris_support.h"
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"node:lambda:() => require('os').cpus().length"
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prim__getNProcessors : PrimIO Int
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||| Get the number of processors on the system. Returns `Nothing` if we somehow
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||| got 0 processors.
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export
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getNProcessors : IO (Maybe Nat)
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getNProcessors = do
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i <- fromPrim prim__getNProcessors
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pure (if i < 0 then Nothing else Just (integerToNat (cast i)))
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