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can_list_to_can_capnp_cpp: write message directly to the output string (#19912)

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old-commit-hash: d17a5195e7f38a00364b38eeb1066dfd7484dba3
This commit is contained in:
Dean Lee
2021-01-27 00:18:02 +08:00
committed by GitHub
parent 06b8f1042b
commit faa4640ffe
1 changed files with 4 additions and 2 deletions
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selfdrive/boardd/can_list_to_can_capnp.cc
+4 -2
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@@ -22,8 +22,10 @@ void can_list_to_can_capnp_cpp(const std::vector<can_frame> &can_list, std::stri
c.setDat(kj::arrayPtr((uint8_t*)it->dat.data(), it->dat.size()));
c.setSrc(it->src);
}
auto bytes = msg.toBytes();
out.append((const char *)bytes.begin(), bytes.size());
const uint64_t msg_size = capnp::computeSerializedSizeInWords(msg) * sizeof(capnp::word);
out.resize(msg_size);
kj::ArrayOutputStream output_stream(kj::ArrayPtr<capnp::byte>((unsigned char *)out.data(), msg_size));
capnp::writeMessage(output_stream, msg);
}
}