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