// Copyright 2026 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.pgalloc;

message FileRangeProto {
  uint64 start = 1;
  uint64 end = 2;
}

message UnfreeRangeProto {
  uint64 start = 1;
  uint64 end = 2;
  uint64 refs = 3;
}

message MemAcctRangeProto {
  uint64 start = 1;
  uint64 end = 2;
  uint32 kind = 3;
  uint32 mem_cg_id = 4;
  bool known_committed = 5;
}

message ChunkInfoProto {
  bool huge = 1;
}

message MemoryFileMetadataProto {
  uint64 version = 1;
  repeated ChunkInfoProto chunks = 2;
  repeated MemAcctRangeProto mem_acct = 3;
  repeated UnfreeRangeProto unfree_small = 4;
  repeated UnfreeRangeProto unfree_huge = 5;
  repeated FileRangeProto unwaste_small = 6;
  repeated FileRangeProto unwaste_huge = 7;
  map<uint64, uint64> subreleased = 8;
}