Idris2/libs/base/System/Info.idr

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module System.Info
%extern prim__os : String
%extern prim__codegen : String
export
os : String
os = prim__os
export
codegen : String
codegen = prim__codegen
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export
isWindows : Bool
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isWindows = os `elem` ["windows", "mingw32", "cygwin32"]
%foreign "C:idris2_getNProcessors, libidris2_support"
prim__getNProcessors : PrimIO Int
export
getNProcessors : IO (Maybe Nat)
getNProcessors = do
i <- fromPrim prim__getNProcessors
pure (if i < 0 then Nothing else Just (integerToNat (cast i)))