xref: /aosp_15_r20/external/icing/icing/file/constants.h (revision 8b6cd535a057e39b3b86660c4aa06c99747c2136)

// Copyright (C) 2024 Google LLC
//
// 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.

#ifndef ICING_FILE_CONSTANTS_H_
#define ICING_FILE_CONSTANTS_H_

namespace icing {
namespace lib {
namespace constants {

// Icing internal max size for protos.
//
// WARNING: Changing this to a larger number may invalidate our assumption
// that that proto size can safely be stored in the last 3 bytes of the proto
// header.
static constexpr int kMaxProtoSize = (1 << 24) - 1;  // 16MiB
static_assert(kMaxProtoSize <= 0x00FFFFFF,
              "kMaxProtoSize doesn't fit in 3 bytes");

}  // namespace constants
}  // namespace lib
}  // namespace icing

#endif  // ICING_FILE_CONSTANTS_H_