1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef NATIVE_RDB_SHARE_BLOCK_H 17 #define NATIVE_RDB_SHARE_BLOCK_H 18 19 #include "shared_block.h" 20 #include <sqlite3sym.h> 21 #include <string> 22 23 namespace OHOS { 24 namespace NativeRdb { 25 #ifdef __cplusplus 26 extern "C" { 27 #endif 28 enum FillOneRowResult { 29 FILL_ONE_ROW_SUCESS, 30 SHARED_BLOCK_IS_FULL, 31 FILL_ONE_ROW_FAIL, 32 }; 33 34 struct SqliteConnectionS { 35 // Open flags. 36 // Must be kept in sync with the constants defined in SQLiteDatabase.java. 37 enum { 38 OPEN_READONLY = 0x00000001, 39 OPEN_READWRITE = 0x00000002, 40 CREATE_IF_NECESSARY = 0x00000004, 41 }; 42 sqlite3 * const db; 43 const int openFlags; 44 std::string path; 45 SqliteConnectionSSqliteConnectionS46 SqliteConnectionS(sqlite3 *db, int openFlags, const std::string &path) : db(db), openFlags(openFlags), path(path) {} 47 }; 48 49 struct SharedBlockInfo { 50 SqliteConnectionS *connection; 51 AppDataFwk::SharedBlock *sharedBlock; 52 sqlite3_stmt *statement; 53 54 int startPos; 55 int addedRows; 56 int requiredPos; 57 int totalRows; 58 int isCountAllRows; 59 int columnNum; 60 bool isFull; 61 bool hasException; 62 SharedBlockInfoSharedBlockInfo63 SharedBlockInfo(SqliteConnectionS *connection, AppDataFwk::SharedBlock *sharedBlock, sqlite3_stmt *statement) 64 : connection(connection), sharedBlock(sharedBlock), statement(statement) 65 { 66 startPos = 0; 67 addedRows = 0; 68 requiredPos = 0; 69 totalRows = 0; 70 isCountAllRows = 0; 71 columnNum = 0; 72 isFull = false; 73 hasException = false; 74 } 75 }; 76 77 int SeriAddRow(void *pCtx, int addedRows); 78 int SeriReset(void *pCtx, int startPos); 79 int SeriFinish(void *pCtx, int addedRows, int totalRows); 80 int SeriPutString(void *pCtx, int addedRows, int column, const char *text, int size); 81 int SeriPutLong(void *pCtx, int addedRows, int column, sqlite3_int64 value); 82 int SeriPutDouble(void *pCtx, int addedRows, int column, double value); 83 int SeriPutBlob(void *pCtx, int addedRows, int column, const void *blob, int len); 84 int SeriPutNull(void *pCtx, int addedRows, int column); 85 int SeriPutOther(void *pCtx, int addedRows, int column); 86 int ClearSharedBlock(AppDataFwk::SharedBlock *sharedBlock); 87 int SharedBlockSetColumnNum(AppDataFwk::SharedBlock *sharedBlock, int columnNum); 88 void FillSharedBlockOpt(SharedBlockInfo *info); 89 FillOneRowResult FillOneRowOfString(AppDataFwk::SharedBlock *sharedBlock, sqlite3_stmt *statement, int startPos, 90 int addedRows, int pos); 91 FillOneRowResult FillOneRowOfLong(AppDataFwk::SharedBlock *sharedBlock, sqlite3_stmt *statement, int startPos, 92 int addedRows, int pos); 93 FillOneRowResult FillOneRowOfFloat(AppDataFwk::SharedBlock *sharedBlock, sqlite3_stmt *statement, int startPos, 94 int addedRows, int pos); 95 FillOneRowResult FillOneRowOfBlob(AppDataFwk::SharedBlock *sharedBlock, sqlite3_stmt *statement, int startPos, 96 int addedRows, int pos); 97 FillOneRowResult FillOneRowOfNull(AppDataFwk::SharedBlock *sharedBlock, sqlite3_stmt *statement, int startPos, 98 int addedRows, int pos); 99 FillOneRowResult FillOneRow(AppDataFwk::SharedBlock *sharedBlock, sqlite3_stmt *statement, int numColumns, 100 int startPos, int addedRows); 101 void FillRow(SharedBlockInfo *info); 102 void FillSharedBlock(SharedBlockInfo *info); 103 bool ResetStatement(SharedBlockInfo *sharedBlockInfo); 104 int64_t GetCombinedData(int startPos, int totalRows); 105 #ifdef __cplusplus 106 } 107 #endif 108 } // namespace NativeRdb 109 } // namespace OHOS 110 111 #endif 112