/*
 * Copyright (C) 2019 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";
option optimize_for = LITE_RUNTIME;

package perfetto.protos;

message HeapProfileCallsites {
  message Frame {
    optional string name = 1;
    optional string mapping_name = 2;
  }

  message Counters {
    // Count of objects allocated
    optional int64 total_count = 1;
    // Count of bytes allocated
    optional int64 total_bytes = 2;

    // Count of allocated objects that were not freed
    optional int64 delta_count = 3;
    // Count of allocated bytes that were not freed
    optional int64 delta_bytes = 4;
  }

  message Callsite {
    // The hash unambiguously identifies a callsite in a heap profile (as a
    // traversal from the root node). It is based on the symbol names (instead
    // of the addresses).
    optional int64 hash = 1;
    optional int64 parent_hash = 2;

    // Leaf frame of the callsite. Use parent_hash to traverse to parent nodes.
    optional Frame frame = 3;

    optional Counters self_allocs = 4;
    optional Counters child_allocs = 5;
  }

  // Callsites per process instance.
  // Next id: 6
  message InstanceStats {
    optional uint32 pid = 1;
    optional string process_name = 2;
    repeated Callsite callsites = 3;

    // Bytes allocated via malloc but not freed.
    optional int64 profile_delta_bytes = 4;
    // Bytes allocated via malloc irrespective of whether they were freed.
    optional int64 profile_total_bytes = 5;
  }

  repeated InstanceStats instance_stats = 1;
}