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/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef PINYINIME_INCLUDE_SYNC_H__
#define PINYINIME_INCLUDE_SYNC_H__
#define ___SYNC_ENABLED___
#ifdef ___SYNC_ENABLED___
#include "userdict.h"
namespace ime_pinyin {
// Class for user dictionary synchronization
// This class is not thread safe
// Normal invoking flow will be
// begin() ->
// put_lemmas() x N ->
// {
// get_lemmas() ->
// [ get_last_got_count() ] ->
// clear_last_got() ->
// } x N ->
// finish()
class Sync {
public:
Sync();
~Sync();
static const int kUserDictMaxLemmaCount = 5000;
static const int kUserDictMaxLemmaSize = 200000;
static const int kUserDictRatio = 20;
bool begin(const char * filename);
// Merge lemmas downloaded from sync server into local dictionary
// lemmas, lemmas string encoded in UTF16LE
// len, length of lemmas string
// Return how many lemmas merged successfully
int put_lemmas(char16 * lemmas, int len);
// Get local new user lemmas into UTF16LE string
// str, buffer ptr to store new user lemmas
// size, size of buffer
// Return length of returned buffer in measure of UTF16LE
int get_lemmas(char16 * str, int size);
// Return lemmas count in last get_lemmas()
int get_last_got_count();
// Return total lemmas count need get_lemmas()
int get_total_count();
// Clear lemmas got by recent get_lemmas()
void clear_last_got();
void finish();
int get_capacity();
private:
UserDict * userdict_;
char * dictfile_;
int last_count_;
};
}
#endif
#endif // PINYINIME_INCLUDE_SYNC_H__
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