Tianjie Xu 167c3db934 Adding atoms for metrics logging
Define the atom protos for
UpdateEngineUpdateAttemptReported
UpdateEngineSuccessfulUpdateReported

The fields for both atoms are copied from the already reported Tron
counters, except for the source fingerprint. By defining our own proto,
we can have a better insight about each update events. It also makes the
query easier without the server side work to correlate each counters.

Sample output from testdrive shows:
data {
    elapsed_timestamp_nanos: 64932607816092
    atom {
      update_engine_update_attempt_reported {
        attempt_number: 1
        payload_type: FULL
        duration_boottime_in_minutes: 0
        duration_monotonic_in_minutes: 0
        payload_size_mib: 510
        attempt_result: METADATA_VERIFICATION_FAILED
        error_code: DOWNLOAD_METADATA_SIGNATURE_MISMATCH
        fingerprint: "google/walleye/walleye:R/MASTER/eng.xuncha.20190731.151212:userdebug/dev-keys"
    }
  }
}

Bug: 138253582
Bug: 137682371
Test: run statsd_testdrive and check events

Change-Id: Ic502acc8831fe4da0b32a826171d10e9c0f9876d
2019-08-12 12:09:41 -07:00
..
2019-08-12 12:09:41 -07:00
2019-08-02 10:48:47 -07:00

Conventions for the protos in this directory:

  1. As in the rest of Android, use 4 spaces to indent instead of 2.

  2. For protos based on Java files, use the same package as the Java file. For example, com.android.server.thing instead of com.android.server.thing.proto.

  3. If the proto describes the top level output of dumpsys, it should contain Dump. This makes it easy to understand that the proto is the dumpsys output of a certain service, not the data structure of that service, e.g. WindowManagerServiceDumpProto vs WindowManagerServiceProto.

    • Inner messages whose containing messages have the Proto suffix do not need to have a Proto suffix. E.g:
message FooProto {
    message Bar {
        ...
    }
}
 vs
message FooProto {
    message BarProto {
        ...
    }
}
  1. If the proto represents the structure of an object, it should have Proto as its suffix. Please also include the full package path of the original object as a comment to the proto message.

  2. Include units in the field names. For example, screen_time_ms vs screen_time, or file_size_bytes or file_size_mebibytes vs file_size.

  3. Leave field numbers 50,000 - 100,000 reserved for OEMs.