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03-Oct-2017 |
Yi Jin <jinyithu@google.com> |
Implement go/streaming-proto native libs, part 2
Implement ProtoOutputStream.h to write protobuf format data.
Usage of dumping proto:
ProtoOutputStream proto(fd);
proto.write(fieldId, value1); // dump a single value
// start to dump a message:
long long token = proto.start(messageFieldId);
proto.write(nestedField1, nestedValue1);
...
proto.end(token);
fieldId will be generated by protoc-cpp plugin(TBD). It is an encoded uint64_t
value, with 0 - 32 bits as its proto number, 33 - 40 bits reserved for
field type, int32, bool, string, message, etc. and 41 - 43 bits for
single, repeated or packed type. Currently packed field is not
supported.
Bug: 65641021
Test: N/A, need to wait for protoc-cpp plugin and will test in
incident_helper
Change-Id: Ic188615b950235aae0edeee4876b78d31feb5619
/frameworks/base/libs/protoutil/include/android/util/protobuf.h
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