/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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";

option java_multiple_files = true;
option java_package = "org.apache.skywalking.apm.network.language.agent";
option csharp_namespace = "SkyWalking.NetworkProtocol";

import "language-agent/Downstream.proto";

service JVMMetricsService {
    rpc collect (JVMMetrics) returns (Downstream) {
    }
}

message JVMMetrics {
    repeated JVMMetric metrics = 1;
    int32 applicationInstanceId = 2;
}

message JVMMetric {
    int64 time = 1;
    CPU cpu = 2;
    repeated Memory memory = 3;
    repeated MemoryPool memoryPool = 4;
    repeated GC gc = 5;
}

message CPU {
    double usagePercent = 2;
}

message Memory {
    bool isHeap = 1;
    int64 init = 2;
    int64 max = 3;
    int64 used = 4;
    int64 committed = 5;
}

message MemoryPool {
    PoolType type = 1;
    int64 init = 2;
    int64 max = 3;
    int64 used = 4;
    int64 commited = 5;
}

enum PoolType {
    CODE_CACHE_USAGE = 0;
    NEWGEN_USAGE = 1;
    OLDGEN_USAGE = 2;
    SURVIVOR_USAGE = 3;
    PERMGEN_USAGE = 4;
    METASPACE_USAGE = 5;
}

message GC {
    GCPhrase phrase = 1;
    int64 count = 2;
    int64 time = 3;
}

enum GCPhrase {
    NEW = 0;
    OLD = 1;
}