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Introduce flag for overall FFI calls safe/unsafe behaviour #140

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Introduce flag for overall FFI calls safe/unsafe behaviour #140

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17 changes: 15 additions & 2 deletions unix.cabal
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Original file line number Diff line number Diff line change
Expand Up @@ -51,13 +51,20 @@ source-repository head
type: git
location: https://github.com/haskell/unix.git

flag unsafe
description: Declare all FFI calls 'unsafe'. This results in faster
performance, but calls that block in the kernel might
result in overly long GC or other hard to debug issues.
default: True

library
default-language: Haskell2010
default-extensions:
CPP
InterruptibleFFI
other-extensions:
CApiFFI
CPP
DeriveDataTypeable
InterruptibleFFI
NondecreasingIndentation
RankNTypes
RecordWildCards
Expand Down Expand Up @@ -131,6 +138,12 @@ library

ghc-options: -Wall

cpp-options: -DFFI_UNSAFE=unsafe
if flag(unsafe)
cpp-options: -DFFI_SAFE=unsafe -DFFI_INTR=unsafe
else
cpp-options: -DFFI_SAFE=safe -DFFI_INTR=interruptible

include-dirs: include
includes:
HsUnix.h
Expand Down