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 numColumns; 55 int startPos; 56 int addedRows; 57 int requiredPos; 58 int totalRows; 59 int isCountAllRows; 60 int columnNum; 61 bool isFull; 62 bool hasException; 63 SharedBlockInfoSharedBlockInfo64 SharedBlockInfo(SqliteConnectionS *connection, AppDataFwk::SharedBlock *sharedBlock, sqlite3_stmt *statement) 65 : connection(connection), sharedBlock(sharedBlock), statement(statement) 66 { 67 numColumns = 0; 68 startPos = 0; 69 addedRows = 0; 70 requiredPos = 0; 71 totalRows = 0; 72 isCountAllRows = 0; 73 columnNum = 0; 74 isFull = false; 75 hasException = false; 76 } 77 }; 78 79 int SeriAddRow(void *pCtx, int addedRows); 80 int SeriReset(void *pCtx, int startPos); 81 int SeriFinish(void *pCtx, int addedRows, int totalRows); 82 int SeriPutString(void *pCtx, int addedRows, int column, const char *text, int size); 83 int SeriPutLong(void *pCtx, int addedRows, int column, sqlite3_int64 value); 84 int SeriPutDouble(void *pCtx, int addedRows, int column, double value); 85 int SeriPutBlob(void *pCtx, int addedRows, int column, const void *blob, int len); 86 int SeriPutNull(void *pCtx, int addedRows, int column); 87 int SeriPutOther(void *pCtx, int addedRows, int column); 88 int ClearSharedBlock(AppDataFwk::SharedBlock *sharedBlock); 89 int SharedBlockSetColumnNum(AppDataFwk::SharedBlock *sharedBlock, int columnNum); 90 void FillSharedBlockOpt(SharedBlockInfo *info); 91 FillOneRowResult FillOneRowOfString(AppDataFwk::SharedBlock *sharedBlock, sqlite3_stmt *statement, int startPos, 92 int addedRows, int pos); 93 FillOneRowResult FillOneRowOfLong(AppDataFwk::SharedBlock *sharedBlock, sqlite3_stmt *statement, int startPos, 94 int addedRows, int pos); 95 FillOneRowResult FillOneRowOfFloat(AppDataFwk::SharedBlock *sharedBlock, sqlite3_stmt *statement, int startPos, 96 int addedRows, int pos); 97 FillOneRowResult FillOneRowOfBlob(AppDataFwk::SharedBlock *sharedBlock, sqlite3_stmt *statement, int startPos, 98 int addedRows, int pos); 99 FillOneRowResult FillOneRowOfNull(AppDataFwk::SharedBlock *sharedBlock, sqlite3_stmt *statement, int startPos, 100 int addedRows, int pos); 101 FillOneRowResult FillOneRow(AppDataFwk::SharedBlock *sharedBlock, sqlite3_stmt *statement, int numColumns, 102 int startPos, int addedRows); 103 void FillRow(SharedBlockInfo *info); 104 void FillSharedBlock(SharedBlockInfo *info); 105 bool ResetStatement(SharedBlockInfo *sharedBlockInfo); 106 int64_t GetCombinedData(int startPos, int totalRows); 107 #ifdef __cplusplus 108 } 109 #endif 110 } // namespace NativeRdb 111 } // namespace OHOS 112 113 #endif 114