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|
{-# LANGUAGE CPP #-}
{-# LANGUAGE ForeignFunctionInterface #-}
{-# LANGUAGE GADTs #-}
module Hkl.C.EngineList
( HklEngineList
, engineListEnginesGet
, newEngineList
, withEngineList
) where
import Prelude hiding (min, max)
import Foreign ( ForeignPtr
, FunPtr
, Ptr
, newForeignPtr
, withForeignPtr
, peekArray)
import Foreign.C ( CSize(..) )
import Foreign.Storable
import Hkl.C.Engine
import Hkl.C.Geometry
import Hkl.Types
#include "hkl.h"
-- private types
data HklEngineList
-- EngineList
withEngineList :: Factory -> (Ptr HklEngineList -> IO b) -> IO b
withEngineList f func = do
fptr <- newEngineList f
withForeignPtr fptr func
newEngineList :: Factory -> IO (ForeignPtr HklEngineList)
newEngineList f = newFactory f
>>= c_hkl_factory_create_new_engine_list
>>= newForeignPtr c_hkl_engine_list_free
foreign import ccall unsafe "hkl.h hkl_factory_create_new_engine_list"
c_hkl_factory_create_new_engine_list:: Ptr HklFactory -> IO (Ptr HklEngineList)
foreign import ccall unsafe "hkl.h &hkl_engine_list_free"
c_hkl_engine_list_free :: FunPtr (Ptr HklEngineList -> IO ())
engineListEnginesGet :: Ptr HklEngineList -> IO [Engine]
engineListEnginesGet e = do
pdarray <- c_hkl_engine_list_engines_get e
n <- (#{peek darray_engine, size} pdarray) :: IO CSize
engines <- #{peek darray_engine ,item} pdarray :: IO (Ptr (Ptr HklEngine))
enginess <- peekArray (fromEnum n) engines
mapM peekEngine enginess
foreign import ccall unsafe "hkl.h hkl_engine_list_engines_get"
c_hkl_engine_list_engines_get:: Ptr HklEngineList -> IO (Ptr ())
|
