browser/components/translation/cld2/internal/cld2_dynamic_data_loader.h@6474c204b198 (annotated)
browser/components/translation/cld2/internal/cld2_dynamic_data_loader.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | // Copyright 2014 Google Inc. All Rights Reserved. |
| michael@0 | 2 | // |
| michael@0 | 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| michael@0 | 4 | // you may not use this file except in compliance with the License. |
| michael@0 | 5 | // You may obtain a copy of the License at |
| michael@0 | 6 | // |
| michael@0 | 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| michael@0 | 8 | // |
| michael@0 | 9 | // Unless required by applicable law or agreed to in writing, software |
| michael@0 | 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| michael@0 | 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| michael@0 | 12 | // See the License for the specific language governing permissions and |
| michael@0 | 13 | // limitations under the License. |
| michael@0 | 14 | |
| michael@0 | 15 | #ifndef CLD2_INTERNAL_CLD2_DYNAMIC_DATA_LOADER_H_ |
| michael@0 | 16 | #define CLD2_INTERNAL_CLD2_DYNAMIC_DATA_LOADER_H_ |
| michael@0 | 17 | |
| michael@0 | 18 | #include "scoreonescriptspan.h" |
| michael@0 | 19 | #include "cld2_dynamic_data.h" |
| michael@0 | 20 | |
| michael@0 | 21 | namespace CLD2DynamicDataLoader { |
| michael@0 | 22 | |
| michael@0 | 23 | // Read a header from the specified file and return it. |
| michael@0 | 24 | // The header returned is dynamically allocated; you must 'delete' the array |
| michael@0 | 25 | // of TableHeaders as well as the returned FileHeader* when done. |
| michael@0 | 26 | CLD2DynamicData::FileHeader* loadHeader(const char* fileName); |
| michael@0 | 27 | |
| michael@0 | 28 | // Load data directly into a ScoringTables structure using a private, read-only |
| michael@0 | 29 | // mmap and return the newly-allocated structure. |
| michael@0 | 30 | // The out-parameter "mmapAddressOut" is a pointer to a void*; the starting |
| michael@0 | 31 | // address of the mmap()'d block will be written here. |
| michael@0 | 32 | // The out-parameter "mmapLengthOut" is a pointer to an int; the length of the |
| michael@0 | 33 | // mmap()'d block will be written here. |
| michael@0 | 34 | // It is up to the caller to delete |
| michael@0 | 35 | CLD2::ScoringTables* loadDataFile(const char* fileName, |
| michael@0 | 36 | void** mmapAddressOut, int* mmapLengthOut); |
| michael@0 | 37 | |
| michael@0 | 38 | // Given pointers to the data from a previous invocation of loadDataFile, |
| michael@0 | 39 | // unloads the data safely - freeing and deleting any malloc'd/new'd objects. |
| michael@0 | 40 | // When this method returns, the mmap has been deleted, as have all the scoring |
| michael@0 | 41 | // tables; the pointers passed in are all zeroed, such that: |
| michael@0 | 42 | // *scoringTables == NULL |
| michael@0 | 43 | // *mmapAddress == NULL |
| michael@0 | 44 | // mmapLength == NULL |
| michael@0 | 45 | // This is the only safe way to unload data that was previously loaded, as there |
| michael@0 | 46 | // is an unfortunate mixture of new and malloc involved in building the |
| michael@0 | 47 | // in-memory represtation of the data. |
| michael@0 | 48 | void unloadData(CLD2::ScoringTables** scoringTables, |
| michael@0 | 49 | void** mmapAddress, int* mmapLength); |
| michael@0 | 50 | |
| michael@0 | 51 | } // End namespace CLD2DynamicDataExtractor |
| michael@0 | 52 | #endif // CLD2_INTERNAL_CLD2_DYNAMIC_DATA_EXTRACTOR_H_ |
