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comparison mupdf-source/thirdparty/tesseract/src/dict/dawg_cache.h @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 ///////////////////////////////////////////////////////////////////////
2 // 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 //
18 ///////////////////////////////////////////////////////////////////////
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.
42 void DeleteUnusedDawgs() {
43 dawgs_.DeleteUnusedObjects();
44 }
45
46 private:
47 ObjectCache<Dawg> dawgs_;
48 };
49
50 } // namespace tesseract
51
52 #endif // TESSERACT_DICT_DAWG_CACHE_H_