module Network.Libev
(
EvLoopPtr
, evDefaultLoop
, evLoopNew
, evLoop
, evUnloop
, evLoopDestroy
, evRecommendedBackends
, evflag_auto
, evflag_noenv
, evbackend_select
, evbackend_poll
, evbackend_epoll
, evbackend_kqueue
, evbackend_devpoll
, evbackend_port
, MutexCallback
, setupLockingForLoop
, freeMutexCallback
, CEventType
, CEvFlagType
, ev_read
, ev_write
, EvIoPtr
, IoCallback
, mkEvIo
, freeEvIo
, mkIoCallback
, freeIoCallback
, evIoInit
, evIoStart
, evIoStop
, EvTimer
, EvTimerPtr
, TimerCallback
, mkEvTimer
, freeEvTimer
, mkTimerCallback
, freeTimerCallback
, evTimerInit
, evTimerStart
, evTimerStop
, evTimerAgain
, evTimerRemaining
, EvAsyncPtr
, AsyncCallback
, mkEvAsync
, freeEvAsync
, evAsyncInit
, evAsyncSend
, evAsyncStart
, evAsyncStop
, mkAsyncCallback
, freeAsyncCallback
, EvTimestamp
, evNow
, evTime
, c_accept
, c_close
, c_read
, c_write
, c_setnonblocking
)
where
import Control.Concurrent.MVar
import Prelude hiding (repeat)
import Foreign
import Foreign.C
type CEventType = CInt
type CEvFlagType = CInt
evflag_auto :: CEvFlagType
evflag_auto = 0
evflag_noenv :: CEvFlagType
evflag_noenv = 16777216
evbackend_select :: CEvFlagType
evbackend_select = 1
evbackend_poll :: CEvFlagType
evbackend_poll = 2
evbackend_epoll :: CEvFlagType
evbackend_epoll = 4
evbackend_kqueue :: CEvFlagType
evbackend_kqueue = 8
evbackend_devpoll :: CEvFlagType
evbackend_devpoll = 16
evbackend_port :: CEvFlagType
evbackend_port = 32
ev_read :: CEventType
ev_read = 1
ev_write :: CEventType
ev_write = 2
data EvLoop
type EvLoopPtr = Ptr EvLoop
data EvWatcher
type EvWatcherPtr = Ptr EvWatcher
data EvIo = EvIo { fd :: CInt, events :: CInt }
type EvIoPtr = Ptr EvIo
data EvTimer = EvTimer { repeat :: Double }
type EvTimerPtr = Ptr EvTimer
data EvAsync
type EvAsyncPtr = Ptr EvAsync
instance Storable EvWatcher where
sizeOf _ = ((20))
alignment _ = alignment (undefined :: CInt)
instance Storable EvIo where
sizeOf _ = (32)
alignment _ = alignment (undefined :: CInt)
peek ptr = do
fd' <- ((\hsc_ptr -> peekByteOff hsc_ptr 24)) ptr
events' <- ((\hsc_ptr -> peekByteOff hsc_ptr 28)) ptr
return EvIo { fd = fd', events = events' }
poke ptr (EvIo fd' events') = do
((\hsc_ptr -> pokeByteOff hsc_ptr 24)) ptr fd'
((\hsc_ptr -> pokeByteOff hsc_ptr 28)) ptr events'
instance Storable EvTimer where
sizeOf _ = ((36))
alignment _ = alignment (undefined :: CInt)
peek ptr = do
repeat' <- ((\hsc_ptr -> peekByteOff hsc_ptr 28)) ptr
return EvTimer { repeat = repeat' }
poke ptr (EvTimer repeat') = do
((\hsc_ptr -> pokeByteOff hsc_ptr 28)) ptr repeat'
instance Storable EvAsync where
sizeOf _ = ((24))
alignment _ = alignment (undefined :: CInt)
type IoCallback = EvLoopPtr -> EvIoPtr -> CEventType -> IO ()
type TimerCallback = EvLoopPtr -> EvTimerPtr -> CEventType -> IO ()
type AsyncCallback = EvLoopPtr -> EvAsyncPtr -> CEventType -> IO ()
type MutexCallback = EvLoopPtr -> IO ()
type EvTimestamp = CDouble
setupLockingForLoop :: EvLoopPtr
-> IO (FunPtr MutexCallback, FunPtr MutexCallback, MVar ())
setupLockingForLoop loop = do
mvar <- newMVar ()
acq <- mkMutexCallback $ acquire mvar
rel <- mkMutexCallback $ release mvar
evSetLoopReleaseCB loop rel acq
return (rel, acq, mvar)
where
release mvar _ = putMVar mvar ()
acquire mvar _ = takeMVar mvar
foreign import ccall safe "ev_set_loop_release_cb"
evSetLoopReleaseCB :: EvLoopPtr
-> FunPtr MutexCallback
-> FunPtr MutexCallback
-> IO ()
foreign import ccall unsafe "ev.h ev_recommended_backends" evRecommendedBackends :: IO CEvFlagType
foreign import ccall unsafe "wev_default_loop" evDefaultLoop :: CInt -> IO EvLoopPtr
foreign import ccall "wev_loop" evLoop :: EvLoopPtr -> CInt -> IO ()
foreign import ccall "wev_unloop" evUnloop :: EvLoopPtr -> CInt -> IO ()
foreign import ccall unsafe "wev_loop_new" evLoopNew :: CUInt -> IO EvLoopPtr
foreign import ccall unsafe "wev_loop_destroy" evLoopDestroy :: EvLoopPtr -> IO ()
foreign import ccall unsafe "wev_io_init" evIoInit :: EvIoPtr -> FunPtr IoCallback -> CInt -> CEventType -> IO ()
foreign import ccall unsafe "wev_io_start" evIoStart :: EvLoopPtr -> EvIoPtr -> IO ()
foreign import ccall unsafe "wev_io_stop" evIoStop :: EvLoopPtr -> EvIoPtr -> IO ()
foreign import ccall unsafe "wev_async_init" evAsyncInit :: EvAsyncPtr
-> FunPtr AsyncCallback
-> IO ()
foreign import ccall unsafe "wev_async_send" evAsyncSend :: EvLoopPtr
-> EvAsyncPtr
-> IO ()
foreign import ccall unsafe "wev_async_start" evAsyncStart :: EvLoopPtr
-> EvAsyncPtr
-> IO ()
foreign import ccall unsafe "wev_async_stop" evAsyncStop :: EvLoopPtr
-> EvAsyncPtr
-> IO ()
foreign import ccall unsafe "wev_timer_init" evTimerInit :: EvTimerPtr -> FunPtr TimerCallback -> EvTimestamp -> EvTimestamp -> IO ()
foreign import ccall unsafe "wev_timer_set" evTimerSet :: EvTimerPtr -> EvTimestamp -> EvTimestamp -> IO ()
foreign import ccall unsafe "wev_timer_start" evTimerStart :: EvLoopPtr -> EvTimerPtr -> IO ()
foreign import ccall unsafe "wev_timer_stop" evTimerStop :: EvLoopPtr -> EvTimerPtr -> IO ()
foreign import ccall unsafe "wev_timer_again" evTimerAgain :: EvLoopPtr -> EvTimerPtr -> IO ()
foreign import ccall unsafe "wev_timer_remaining" evTimerRemaining :: EvLoopPtr -> EvTimerPtr -> IO (EvTimestamp)
foreign import ccall unsafe "unistd.h close" c_close :: CInt -> IO (CInt)
foreign import ccall unsafe "unistd.h read" c_read :: CInt -> CString -> CSize -> IO (CSize)
foreign import ccall unsafe "unistd.h write" c_write :: CInt -> CString -> CSize -> IO (CSize)
foreign import ccall unsafe "c_accept" c_accept :: CInt -> IO (CInt)
foreign import ccall unsafe "set_nonblocking" c_setnonblocking :: CInt -> IO ()
foreign import ccall unsafe "ev.h ev_time" evTime :: IO EvTimestamp
foreign import ccall unsafe "ev.h ev_now" evNow :: EvLoopPtr -> IO EvTimestamp
foreign import ccall "wrapper" mkIoCallback :: IoCallback
-> IO (FunPtr IoCallback)
foreign import ccall "wrapper" mkTimerCallback :: TimerCallback
-> IO (FunPtr TimerCallback)
foreign import ccall "wrapper" mkAsyncCallback :: AsyncCallback
-> IO (FunPtr AsyncCallback)
foreign import ccall "wrapper" mkMutexCallback :: MutexCallback
-> IO (FunPtr MutexCallback)
freeIoCallback :: FunPtr IoCallback -> IO ()
freeIoCallback = freeHaskellFunPtr
freeMutexCallback :: FunPtr MutexCallback -> IO ()
freeMutexCallback = freeHaskellFunPtr
freeTimerCallback :: FunPtr TimerCallback -> IO ()
freeTimerCallback = freeHaskellFunPtr
freeAsyncCallback :: FunPtr AsyncCallback -> IO ()
freeAsyncCallback = freeHaskellFunPtr
mkEvIo :: IO (EvIoPtr)
mkEvIo = malloc
freeEvIo :: EvIoPtr -> IO ()
freeEvIo = free
mkEvTimer :: IO (EvTimerPtr)
mkEvTimer = malloc
evTimerSetRepeat :: EvTimerPtr -> Double -> IO ()
evTimerSetRepeat p t = do
evtimer <- peek p
poke p evtimer { repeat = t }
freeEvTimer :: EvTimerPtr -> IO ()
freeEvTimer = free
mkEvAsync :: IO (EvAsyncPtr)
mkEvAsync = malloc
freeEvAsync :: EvAsyncPtr -> IO ()
freeEvAsync = free