System.Posix.DynamicLinker

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System.Posix.DynamicLinker |
Portability | non-portable (requires POSIX)
Stability | provisional
Maintainer | vs@foldr.org
Description
Dynamic linker support through dlopen()
Synopsis
module System.Posix.DynamicLinker.Prim
dlopen :: String -> [RTLDFlags] -> IO DL
dlsym :: DL -> String -> IO (FunPtr a)
dlerror :: IO String
dlclose :: DL -> IO ()
withDL :: String -> [RTLDFlags] -> (DL -> IO a) -> IO a
withDL_ :: String -> [RTLDFlags] -> (DL -> IO a) -> IO ()
undl :: DL -> Ptr ()
Documentation
module System.Posix.DynamicLinker.Prim
dlopen :: String -> [RTLDFlags] -> IO DL
dlsym :: DL -> String -> IO (FunPtr a)
`dlsym` returns the address binding of the symbol described in `symbol`, as it occurs in the shared object identified by `source`.
dlerror :: IO String
dlclose :: DL -> IO ()
withDL :: String -> [RTLDFlags] -> (DL -> IO a) -> IO a
withDL_ :: String -> [RTLDFlags] -> (DL -> IO a) -> IO ()
undl :: DL -> Ptr ()
`undl` obtains the raw handle. You mustn't do something like `withDL mod flags $ liftM undl >>= p -> use p`
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