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/*
* Copyright (C) 2021 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
syntax = "proto2";
package com.android.internal.os;
option java_outer_classname = "BinderLatencyProto";
/**
* RepeatedApiStats proto from atoms.proto, duplicated here so that it's
* accessible in the build.
* Must be kept in sync with the version in atoms.proto.
*/
message RepeatedApiStats {
repeated ApiStats api_stats = 1;
}
message Dims {
enum ProcessSource {
UNKNOWN_PROCESS_SOURCE = 0;
SYSTEM_SERVER = 1;
TELEPHONY = 2;
BLUETOOTH = 3;
}
enum ServiceClassName {
UNKNOWN_CLASS = 0;
}
enum ServiceMethodName {
UNKNOWN_METHOD = 0;
}
// Required.
optional ProcessSource process_source = 1;
// The class name of the API making the call to Binder. Enum value
// is preferred as uses much less data to store.
// This field does not contain PII.
oneof service_class {
ServiceClassName service_class_name_as_enum = 2;
string service_class_name = 3;
}
// Method name of the API call. It can also be a transaction code if we
// cannot resolve it to a name. See Binder#getTransactionName. Enum value
// is preferred as uses much less data to store.
// This field does not contain PII.
oneof service_method {
ServiceMethodName service_method_name_as_enum = 4;
string service_method_name = 5;
}
}
message ApiStats {
// required.
optional Dims dims = 1;
// Indicates the first bucket that had any data. Allows omitting any empty
// buckets at the start of the bucket list and thus save on data size.
optional int32 first_bucket_index = 2;
// Stores the count of samples for each bucket. The number of buckets and
// their sizes are controlled server side with a flag.
repeated int32 buckets = 3;
// Params for histogram buckets.
// The number of buckets in the histogram. Store this value separately
// as the tail of empty buckets is truncated when stored in the proto to
// conserve space. Thus it is not possible to infer this value from there.
optional int32 bucket_count = 4;
// The size (upper bound) of the first bucket (used to avoid creating an
// excessive amount of small buckets). E.g. for first_bucket_size of 5, the
// first bucket will be [0, 5) and the second will be [5, 5 * scaleFactor).
optional int32 first_bucket_size = 5;
// The rate in which each consecutive bucket increases (before rounding).
// Implemented in: com.android.internal.os.BinderLatencyBuckets.
optional float scale_factor = 6;
}
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