unix-2.4.0.1: POSIX functionality Source code Contents Index

System.Posix.SharedMem Portability non-portable (requires POSIX) Stability experimental Maintainer libraries@haskell.org

Description

POSIX shared memory support.

Synopsis

data ShmOpenFlags = ShmOpenFlags { shmReadWrite :: Bool shmCreate :: Bool shmExclusive :: Bool shmTrunc :: Bool } shmOpen :: String -> ShmOpenFlags -> FileMode -> IO Fd shmUnlink :: String -> IO ()

Documentation

data ShmOpenFlags Source

Constructors ShmOpenFlags shmReadWrite :: Bool If true, open the shm object read-write rather than read-only. shmCreate :: Bool If true, create the shm object if it does not exist. shmExclusive :: Bool If true, throw an exception if the shm object already exists. shmTrunc :: Bool If true, wipe the contents of the shm object after opening it.

shmOpen :: String -> ShmOpenFlags -> FileMode -> IO Fd Source

Open a shared memory object with the given name, flags, and mode.

shmUnlink :: String -> IO () Source

Delete the shared memory object with the given name.

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