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transactions should always start with the last revision and release it when done

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Krasimir Angelov
2022-05-23 19:50:41 +02:00
parent d66cf23811
commit fc09bc776b
8 changed files with 15 additions and 15 deletions
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2
src/runtime/haskell/PGF2/FFI.hsc
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@@ -175,7 +175,7 @@ foreign import ccall pgf_infer_expr :: Ptr PgfDB -> Ptr PGF -> Ptr (StablePtr Ex
foreign import ccall pgf_check_type :: Ptr PgfDB -> Ptr PGF -> Ptr (StablePtr Type) -> Ptr PgfMarshaller -> Ptr PgfUnmarshaller -> Ptr PgfExn -> IO ()
foreign import ccall pgf_start_transaction :: Ptr PgfDB -> Ptr PGF -> Ptr PgfExn -> IO (Ptr PGF)
foreign import ccall pgf_start_transaction :: Ptr PgfDB -> Ptr PgfExn -> IO (Ptr PGF)
foreign import ccall pgf_commit_transaction :: Ptr PgfDB -> Ptr PGF -> Ptr PgfExn -> IO ()

2
src/runtime/haskell/PGF2/Transactions.hsc
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@@ -84,7 +84,7 @@ modifyPGF p (Transaction f) =
withForeignPtr (a_revision p) $ \c_revision ->
withPgfExn "modifyPGF" $ \c_exn ->
mask $ \restore -> do
c_revision <- pgf_start_transaction (a_db p) c_revision c_exn
c_revision <- pgf_start_transaction (a_db p) c_exn
ex_type <- (#peek PgfExn, type) c_exn
if (ex_type :: (#type PgfExnType)) == (#const PGF_EXN_NONE)
then do ((restore (f (a_db p) c_revision c_revision c_exn))