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/*
* Copyright (C) 2017 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 android.drm_metrics;
// This message contains the specific metrics captured by DrmMetrics. It is
// used for serializing and logging metrics.
// next id: 11.
message DrmFrameworkMetrics {
// TODO: Consider using extensions.
// Attributes are associated with a recorded value. E.g. A counter may
// represent a count of an operation returning a specific error code. The
// error code will be an attribute.
message Attributes {
// Reserved for compatibility with logging proto.
reserved 2 to 13;
// A general purpose error code where 0 means OK.
optional int32 error_code = 1;
// Defined at ::android::hardware::drm::V1_0::KeyStatusType;
optional uint32 key_status_type = 14;
// Defined at ::android::hardware::drm::V1_0::EventType;
optional uint32 event_type = 15;
}
// The Counter message is used to store a count value with an associated
// Attribute.
message Counter {
optional uint64 count = 1;
// Represents the attributes associated with this counter instance.
optional Attributes attributes = 2;
}
// The DistributionMetric is meant to capture the moments of a normally
// distributed (or approximately normal) value.
message DistributionMetric {
optional float min = 1;
optional float max = 2;
optional float mean = 3;
optional double variance = 4;
optional uint64 operation_count = 5;
// Represents the attributes assocated with this distribution metric
// instance.
optional Attributes attributes = 6;
}
message SessionLifetime {
// Start time of the session in milliseconds since epoch.
optional uint64 start_time_ms = 1;
// End time of the session in milliseconds since epoch.
optional uint64 end_time_ms = 2;
}
// The count of open session operations. Each instance has a specific error
// code associated with it.
repeated Counter open_session_counter = 1;
// The count of close session operations. Each instance has a specific error
// code associated with it.
repeated Counter close_session_counter = 2;
// Count and execution time of getKeyRequest calls.
repeated DistributionMetric get_key_request_time_us = 3;
// Count and execution time of provideKeyResponse calls.
repeated DistributionMetric provide_key_response_time_us = 4;
// Count of getProvisionRequest calls.
repeated Counter get_provisioning_request_counter = 5;
// Count of provideProvisionResponse calls.
repeated Counter provide_provisioning_response_counter = 6;
// Count of key status events broken out by status type.
repeated Counter key_status_change_counter = 7;
// Count of events broken out by event type
repeated Counter event_callback_counter = 8;
// Count getPropertyByteArray calls to retrieve the device unique id.
repeated Counter get_device_unique_id_counter = 9;
// Session ids to lifetime (start and end time) map.
// Session ids are strings of hex-encoded byte arrays.
map<string, SessionLifetime> session_lifetimes = 10;
}