1// Copyright (C) 2017 The Android Open Source Project 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15// Protos for a data store: a barebone in-memory file system. 16// 17// A DataStore maintains an association between names and chunks of bytes. It 18// can be serialized into a string. Of course, it can be deserialized from a 19// string, with minimal parsing; after deserialization, all chunks of bytes 20// start at aligned addresses (aligned = multiple of an address specified at 21// build time). 22 23syntax = "proto2"; 24option optimize_for = LITE_RUNTIME; 25 26package libtextclassifier.nlp_core.memory_image; 27 28// Bytes for a data store entry. They can be stored either directly in the 29// "data" field, or in the DataBlob with the 0-based index "blob_index". 30message DataStoreEntryBytes { 31 oneof data { 32 // Bytes for this data store entry, stored in this message. 33 string in_place_data = 1; 34 35 // 0-based index of the data blob with bytes for this data store entry. In 36 // this case, the actual bytes are stored outside this message; the 37 // DataStore code handles the association. 38 int32 blob_index = 2 [default = -1]; 39 } 40} 41 42message DataStoreProto { 43 map<string, DataStoreEntryBytes> entries = 1; 44} 45