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ZBD_IIIDL_S_Project/build20241115/DependFile/googlepinyin/sync.h

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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__