Chris@50: // Copyright (c) 2013-2014 Sandstorm Development Group, Inc. and contributors
Chris@50: // Licensed under the MIT License:
Chris@50: //
Chris@50: // Permission is hereby granted, free of charge, to any person obtaining a copy
Chris@50: // of this software and associated documentation files (the "Software"), to deal
Chris@50: // in the Software without restriction, including without limitation the rights
Chris@50: // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
Chris@50: // copies of the Software, and to permit persons to whom the Software is
Chris@50: // furnished to do so, subject to the following conditions:
Chris@50: //
Chris@50: // The above copyright notice and this permission notice shall be included in
Chris@50: // all copies or substantial portions of the Software.
Chris@50: //
Chris@50: // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
Chris@50: // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
Chris@50: // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
Chris@50: // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
Chris@50: // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Chris@50: // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
Chris@50: // THE SOFTWARE.
Chris@50: 
Chris@50: #ifndef CAPNP_SERIALIZE_ASYNC_H_
Chris@50: #define CAPNP_SERIALIZE_ASYNC_H_
Chris@50: 
Chris@50: #if defined(__GNUC__) && !defined(CAPNP_HEADER_WARNINGS)
Chris@50: #pragma GCC system_header
Chris@50: #endif
Chris@50: 
Chris@50: #include <kj/async-io.h>
Chris@50: #include "message.h"
Chris@50: 
Chris@50: namespace capnp {
Chris@50: 
Chris@50: kj::Promise<kj::Own<MessageReader>> readMessage(
Chris@50:     kj::AsyncInputStream& input, ReaderOptions options = ReaderOptions(),
Chris@50:     kj::ArrayPtr<word> scratchSpace = nullptr);
Chris@50: // Read a message asynchronously.
Chris@50: //
Chris@50: // `input` must remain valid until the returned promise resolves (or is canceled).
Chris@50: //
Chris@50: // `scratchSpace`, if provided, must remain valid until the returned MessageReader is destroyed.
Chris@50: 
Chris@50: kj::Promise<kj::Maybe<kj::Own<MessageReader>>> tryReadMessage(
Chris@50:     kj::AsyncInputStream& input, ReaderOptions options = ReaderOptions(),
Chris@50:     kj::ArrayPtr<word> scratchSpace = nullptr);
Chris@50: // Like `readMessage` but returns null on EOF.
Chris@50: 
Chris@50: kj::Promise<void> writeMessage(kj::AsyncOutputStream& output,
Chris@50:                                kj::ArrayPtr<const kj::ArrayPtr<const word>> segments)
Chris@50:     KJ_WARN_UNUSED_RESULT;
Chris@50: kj::Promise<void> writeMessage(kj::AsyncOutputStream& output, MessageBuilder& builder)
Chris@50:     KJ_WARN_UNUSED_RESULT;
Chris@50: // Write asynchronously.  The parameters must remain valid until the returned promise resolves.
Chris@50: 
Chris@50: // =======================================================================================
Chris@50: // inline implementation details
Chris@50: 
Chris@50: inline kj::Promise<void> writeMessage(kj::AsyncOutputStream& output, MessageBuilder& builder) {
Chris@50:   return writeMessage(output, builder.getSegmentsForOutput());
Chris@50: }
Chris@50: 
Chris@50: }  // namespace capnp
Chris@50: 
Chris@50: #endif  // CAPNP_SERIALIZE_ASYNC_H_