tesseract 4.1.1
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dawg_cache.h
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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//
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 "strngs.h"
26#include "tessdatamanager.h"
27
28namespace tesseract {
29
30class DawgCache {
31 public:
32 Dawg *GetSquishedDawg(const STRING &lang, TessdataType tessdata_dawg_type,
33 int debug_level, TessdataManager *data_file);
34
35 // If we manage the given dawg, decrement its count,
36 // and possibly delete it if the count reaches zero.
37 // If dawg is unknown to us, return false.
38 bool FreeDawg(Dawg *dawg) {
39 return dawgs_.Free(dawg);
40 }
41
42 // Free up any currently unused dawgs.
44 dawgs_.DeleteUnusedObjects();
45 }
46
47 private:
48 ObjectCache<Dawg> dawgs_;
49};
50
51} // namespace tesseract
52
53#endif // TESSERACT_DICT_DAWG_CACHE_H_
Definition: strngs.h:45
void DeleteUnusedDawgs()
Definition: dawg_cache.h:43
Dawg * GetSquishedDawg(const STRING &lang, TessdataType tessdata_dawg_type, int debug_level, TessdataManager *data_file)
Definition: dawg_cache.cpp:45
bool FreeDawg(Dawg *dawg)
Definition: dawg_cache.h:38