tesseract  5.0.0
dawg_cache.h
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1 // File: dawg_cache.h
3 // Description: A class that knows about loading and caching dawgs.
4 // Author: David Eger
5 // Created: Fri Jan 27 12:08:00 PST 2012
6 //
7 // (C) Copyright 2012, Google Inc.
8 // Licensed under the Apache License, Version 2.0 (the "License");
9 // you may not use this file except in compliance with the License.
10 // You may obtain a copy of the License at
11 // http://www.apache.org/licenses/LICENSE-2.0
12 // Unless required by applicable law or agreed to in writing, software
13 // distributed under the License is distributed on an "AS IS" BASIS,
14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 // See the License for the specific language governing permissions and
16 // limitations under the License.
17 //
19 
20 #ifndef TESSERACT_DICT_DAWG_CACHE_H_
21 #define TESSERACT_DICT_DAWG_CACHE_H_
22 
23 #include "dawg.h"
24 #include "object_cache.h"
25 #include "tessdatamanager.h"
26 
27 namespace tesseract {
28 
29 class DawgCache {
30 public:
31  Dawg *GetSquishedDawg(const std::string &lang, TessdataType tessdata_dawg_type, int debug_level,
32  TessdataManager *data_file);
33 
34  // If we manage the given dawg, decrement its count,
35  // and possibly delete it if the count reaches zero.
36  // If dawg is unknown to us, return false.
37  bool FreeDawg(Dawg *dawg) {
38  return dawgs_.Free(dawg);
39  }
40 
41  // Free up any currently unused dawgs.
43  dawgs_.DeleteUnusedObjects();
44  }
45 
46 private:
47  ObjectCache<Dawg> dawgs_;
48 };
49 
50 } // namespace tesseract
51 
52 #endif // TESSERACT_DICT_DAWG_CACHE_H_
void DeleteUnusedDawgs()
Definition: dawg_cache.h:42
Dawg * GetSquishedDawg(const std::string &lang, TessdataType tessdata_dawg_type, int debug_level, TessdataManager *data_file)
Definition: dawg_cache.cpp:43
bool FreeDawg(Dawg *dawg)
Definition: dawg_cache.h:37