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-// Copyright 2018 The gVisor Authors.
-//
-// 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 = "proto3";
-
-package gvisor;
-
-// MetricMetadata contains all of the metadata describing a single metric.
-message MetricMetadata {
- // name is the unique name of the metric, usually in a "directory" format
- // (e.g., /foo/count).
- string name = 1;
-
- // description is a human-readable description of the metric.
- string description = 2;
-
- // cumulative indicates that this metric is never decremented.
- bool cumulative = 3;
-
- // sync indicates that values from the final metric event should be
- // synchronized to the backing monitoring system at exit.
- //
- // If sync is false, values are only sent to the monitoring system
- // periodically. There is no guarantee that values will ever be received by
- // the monitoring system.
- bool sync = 4;
-
- enum Type { UINT64 = 0; }
-
- // type is the type of the metric value.
- Type type = 5;
-}
-
-// MetricRegistration contains the metadata for all metrics that will be in
-// future MetricUpdates.
-message MetricRegistration {
- repeated MetricMetadata metrics = 1;
-}
-
-// MetricValue the value of a metric at a single point in time.
-message MetricValue {
- // name is the unique name of the metric, as in MetricMetadata.
- string name = 1;
-
- // value is the value of the metric at a single point in time. The field set
- // depends on the type of the metric.
- oneof value {
- uint64 uint64_value = 2;
- }
-}
-
-// MetricUpdate contains new values for multiple distinct metrics.
-//
-// Metrics whose values have not changed are not included.
-message MetricUpdate {
- repeated MetricValue metrics = 1;
-}