/usr/include/capnp/serialize-packed.h is in libcapnp-dev 0.4.0-1ubuntu2.
This file is owned by root:root, with mode 0o644.
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// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef CAPNP_SERIALIZE_PACKED_H_
#define CAPNP_SERIALIZE_PACKED_H_
#include "serialize.h"
namespace capnp {
namespace _ { // private
class PackedInputStream: public kj::InputStream {
// An input stream that unpacks packed data with a picky constraint: The caller must read data
// in the exact same size and sequence as the data was written to PackedOutputStream.
public:
explicit PackedInputStream(kj::BufferedInputStream& inner);
KJ_DISALLOW_COPY(PackedInputStream);
~PackedInputStream() noexcept(false);
// implements InputStream ------------------------------------------
size_t tryRead(void* buffer, size_t minBytes, size_t maxBytes) override;
void skip(size_t bytes) override;
private:
kj::BufferedInputStream& inner;
};
class PackedOutputStream: public kj::OutputStream {
public:
explicit PackedOutputStream(kj::BufferedOutputStream& inner);
KJ_DISALLOW_COPY(PackedOutputStream);
~PackedOutputStream() noexcept(false);
// implements OutputStream -----------------------------------------
void write(const void* buffer, size_t bytes) override;
private:
kj::BufferedOutputStream& inner;
};
} // namespace _ (private)
class PackedMessageReader: private _::PackedInputStream, public InputStreamMessageReader {
public:
PackedMessageReader(kj::BufferedInputStream& inputStream, ReaderOptions options = ReaderOptions(),
kj::ArrayPtr<word> scratchSpace = nullptr);
KJ_DISALLOW_COPY(PackedMessageReader);
~PackedMessageReader() noexcept(false);
};
class PackedFdMessageReader: private kj::FdInputStream, private kj::BufferedInputStreamWrapper,
public PackedMessageReader {
public:
PackedFdMessageReader(int fd, ReaderOptions options = ReaderOptions(),
kj::ArrayPtr<word> scratchSpace = nullptr);
// Read message from a file descriptor, without taking ownership of the descriptor.
// Note that if you want to reuse the descriptor after the reader is destroyed, you'll need to
// seek it, since otherwise the position is unspecified.
PackedFdMessageReader(kj::AutoCloseFd fd, ReaderOptions options = ReaderOptions(),
kj::ArrayPtr<word> scratchSpace = nullptr);
// Read a message from a file descriptor, taking ownership of the descriptor.
KJ_DISALLOW_COPY(PackedFdMessageReader);
~PackedFdMessageReader() noexcept(false);
};
void writePackedMessage(kj::BufferedOutputStream& output, MessageBuilder& builder);
void writePackedMessage(kj::BufferedOutputStream& output,
kj::ArrayPtr<const kj::ArrayPtr<const word>> segments);
// Write a packed message to a buffered output stream.
void writePackedMessage(kj::OutputStream& output, MessageBuilder& builder);
void writePackedMessage(kj::OutputStream& output,
kj::ArrayPtr<const kj::ArrayPtr<const word>> segments);
// Write a packed message to an unbuffered output stream. If you intend to write multiple messages
// in succession, consider wrapping your output in a buffered stream in order to reduce system
// call overhead.
void writePackedMessageToFd(int fd, MessageBuilder& builder);
void writePackedMessageToFd(int fd, kj::ArrayPtr<const kj::ArrayPtr<const word>> segments);
// Write a single packed message to the file descriptor.
// =======================================================================================
// inline stuff
inline void writePackedMessage(kj::BufferedOutputStream& output, MessageBuilder& builder) {
writePackedMessage(output, builder.getSegmentsForOutput());
}
inline void writePackedMessage(kj::OutputStream& output, MessageBuilder& builder) {
writePackedMessage(output, builder.getSegmentsForOutput());
}
inline void writePackedMessageToFd(int fd, MessageBuilder& builder) {
writePackedMessageToFd(fd, builder.getSegmentsForOutput());
}
} // namespace capnp
#endif // CAPNP_SERIALIZE_PACKED_H_
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