content: {-# LANGUAGE ForeignFunctionInterface, MagicHash #-}
  module SG.FFI where
  
  import Foreign
  import Foreign.C
  import PGF2.FFI
  import GHC.Ptr
  import Data.Int
  
  data SgSG
  data SgQueryExprResult
  data SgTripleResult
  data SgQueryResult
  type SgId = Int64
  
  foreign import ccall "sg/sg.h sg_open"
    sg_open :: CString -> Ptr GuExn -> IO (Ptr SgSG)
  
  foreign import ccall "sg/sg.h sg_close"
    sg_close :: Ptr SgSG -> Ptr GuExn -> IO ()
  
  foreign import ccall "sg/sg.h sg_begin_trans"
    sg_begin_trans :: Ptr SgSG -> Ptr GuExn -> IO ()
  
  foreign import ccall "sg/sg.h sg_commit"
    sg_commit :: Ptr SgSG -> Ptr GuExn -> IO ()
  
  foreign import ccall "sg/sg.h sg_rollback"
    sg_rollback :: Ptr SgSG -> Ptr GuExn -> IO ()
  
  foreign import ccall "sg/sg.h sg_insert_expr"
    sg_insert_expr :: Ptr SgSG -> PgfExpr -> CInt -> Ptr GuExn -> IO SgId
  
  foreign import ccall "sg/sg.h sg_get_expr"
    sg_get_expr :: Ptr SgSG -> SgId -> Ptr GuPool -> Ptr GuExn -> IO PgfExpr
  
  foreign import ccall "sg/sg.h sg_query_expr"
    sg_query_expr :: Ptr SgSG -> PgfExpr -> Ptr GuPool -> Ptr GuExn -> IO (Ptr SgQueryExprResult)
  
  foreign import ccall "sg/sg.h sg_query_next"
    sg_query_next :: Ptr SgSG -> Ptr SgQueryExprResult -> Ptr SgId -> Ptr GuPool -> Ptr GuExn -> IO PgfExpr
  
  foreign import ccall "sg/sg.h sg_query_close"
    sg_query_close :: Ptr SgSG -> Ptr SgQueryExprResult -> Ptr GuExn -> IO ()
  
  foreign import ccall "sg/sg.h sg_update_fts_index"
    sg_update_fts_index :: Ptr SgSG -> Ptr PgfPGF -> Ptr GuExn -> IO ()
  
  foreign import ccall "sg/sg.h sg_query_linearization"
    sg_query_linearization :: Ptr SgSG -> CString -> Ptr GuPool -> Ptr GuExn -> IO (Ptr GuSeq)
  
  foreign import ccall "sg/sg.h sg_insert_triple"
    sg_insert_triple :: Ptr SgSG -> SgTriple -> Ptr GuExn -> IO SgId
  
  foreign import ccall "sg/sg.h sg_get_triple"
    sg_get_triple :: Ptr SgSG -> SgId -> SgTriple -> Ptr GuPool -> Ptr GuExn -> IO CInt
  
  foreign import ccall "sg/sg.h sg_query_triple"
    sg_query_triple :: Ptr SgSG -> SgTriple -> Ptr GuExn -> IO (Ptr SgTripleResult)
  
  foreign import ccall "sg/sg.h sg_triple_result_fetch"
    sg_triple_result_fetch :: Ptr SgTripleResult -> Ptr SgId -> SgTriple -> Ptr GuPool -> Ptr GuExn -> IO CInt
  
  foreign import ccall "sg/sg.h sg_triple_result_close"
    sg_triple_result_close :: Ptr SgTripleResult -> Ptr GuExn -> IO ()
  
  foreign import ccall "sg/sg.h sg_query"
    sg_query :: Ptr SgSG -> CSizeT -> Ptr PgfExpr -> Ptr GuExn -> IO (Ptr SgQueryResult)
  
  foreign import ccall "sg/sg.h sg_query_result_columns"
    sg_query_result_columns :: Ptr SgQueryResult -> IO CSizeT
  
  foreign import ccall "sg/sg.h sg_query_result_fetch"
    sg_query_result_fetch :: Ptr SgQueryResult -> Ptr PgfExpr -> Ptr GuPool -> Ptr GuExn -> IO CInt
  
  foreign import ccall "sg/sg.h sg_query_result_close"
    sg_query_result_close :: Ptr SgQueryResult -> Ptr GuExn -> IO ()
  
  type SgTriple = Ptr PgfExpr
  
  withTriple :: (SgTriple -> IO a) -> IO a
  withTriple = allocaArray 3
  
  gu_exn_type_SgError = Ptr "SgError"# :: CString
  