pycapnp/capnp/helpers/serialize.h
2014-01-15 22:43:19 -08:00

20 lines
No EOL
609 B
C

#pragma once
#include "kj/io.h"
#include "capnp/dynamic.h"
#include "capnp/serialize-packed.h"
kj::Array< ::capnp::byte> messageToPackedBytes(capnp::MessageBuilder & message)
{
auto segments = message.getSegmentsForOutput();
size_t totalSize = segments.size() / 2 + 1;
for (auto& segment: segments) {
totalSize += segment.size();
}
kj::Array<capnp::byte> result = kj::heapArray<capnp::byte>(totalSize * 8);
kj::ArrayOutputStream out(result.asPtr());
capnp::writePackedMessage(out, message);
return heapArray(out.getArray()); // TODO: make this non-copying somehow
}