| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
Data.Capnp.IO
Description
This module provides utilities for reading and writing values to and
from file Handles.
Synopsis
- hGetValue :: FromStruct ConstMsg a => Handle -> Int -> IO a
- getValue :: FromStruct ConstMsg a => Int -> IO a
- hPutValue :: (Cerialize RealWorld a, ToStruct (MutMsg RealWorld) (Cerial (MutMsg RealWorld) a)) => Handle -> a -> IO ()
- putValue :: (Cerialize RealWorld a, ToStruct (MutMsg RealWorld) (Cerial (MutMsg RealWorld) a)) => a -> IO ()
Documentation
hGetValue :: FromStruct ConstMsg a => Handle -> Int -> IO a Source #
hGetValue limit handlehandle, returning its root object.
limit is used as both a cap on the size of a message which may be read and, for types
in the high-level API, the traversal limit when decoding the message.
It may throw a Error if there is a problem decoding the message,
or an IOError raised by the underlying IO libraries.