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