diff options
Diffstat (limited to 'System/Posix/SharedMem.hsc')
| -rw-r--r-- | System/Posix/SharedMem.hsc | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/System/Posix/SharedMem.hsc b/System/Posix/SharedMem.hsc index a6326a7..ab31764 100644 --- a/System/Posix/SharedMem.hsc +++ b/System/Posix/SharedMem.hsc @@ -35,11 +35,11 @@ import Foreign.C import Data.Bits #endif -data ShmOpenFlags = ShmOpenFlags +data ShmOpenFlags = ShmOpenFlags { shmReadWrite :: Bool, - -- ^ If true, open the shm object read-write rather than read-only. + -- ^ 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. + -- ^ 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 @@ -54,16 +54,16 @@ shmOpen name flags mode = cflags1 <- return $ cflags0 .|. (if shmReadWrite flags then #{const O_RDWR} else #{const O_RDONLY}) - cflags2 <- return $ cflags1 .|. (if shmCreate flags then #{const O_CREAT} + cflags2 <- return $ cflags1 .|. (if shmCreate flags then #{const O_CREAT} else 0) - cflags3 <- return $ cflags2 .|. (if shmExclusive flags - then #{const O_EXCL} + cflags3 <- return $ cflags2 .|. (if shmExclusive flags + then #{const O_EXCL} else 0) - cflags4 <- return $ cflags3 .|. (if shmTrunc flags then #{const O_TRUNC} + cflags4 <- return $ cflags3 .|. (if shmTrunc flags then #{const O_TRUNC} else 0) withCAString name (shmOpen' cflags4) where shmOpen' cflags cname = - do fd <- throwErrnoIfMinus1 "shmOpen" $ + do fd <- throwErrnoIfMinus1 "shmOpen" $ shm_open cname cflags mode return $ Fd fd #else |