mirror of https://github.com/axmolengine/axmol.git
158 lines
4.3 KiB
C++
158 lines
4.3 KiB
C++
/*
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Copyright (c) 2012 - Zynga Inc.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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/*
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Local Storage support for the JS Bindings for iOS.
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Works on cocos2d-iphone and cocos2d-x.
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*/
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#include "LocalStorage.h"
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#include "platform/CCPlatformMacros.h"
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#if (CC_TARGET_PLATFORM != CC_PLATFORM_ANDROID)
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#include <stdio.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <sqlite3.h>
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static int _initialized = 0;
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static sqlite3 *_db;
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static sqlite3_stmt *_stmt_select;
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static sqlite3_stmt *_stmt_remove;
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static sqlite3_stmt *_stmt_update;
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static void localStorageCreateTable()
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{
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const char *sql_createtable = "CREATE TABLE IF NOT EXISTS data(key TEXT PRIMARY KEY,value TEXT);";
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sqlite3_stmt *stmt;
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int ok=sqlite3_prepare_v2(_db, sql_createtable, -1, &stmt, nullptr);
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ok |= sqlite3_step(stmt);
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ok |= sqlite3_finalize(stmt);
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if( ok != SQLITE_OK && ok != SQLITE_DONE)
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printf("Error in CREATE TABLE\n");
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}
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void localStorageInit( const std::string& fullpath/* = "" */)
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{
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if( ! _initialized ) {
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int ret = 0;
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if (fullpath.empty())
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ret = sqlite3_open(":memory:",&_db);
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else
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ret = sqlite3_open(fullpath.c_str(), &_db);
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localStorageCreateTable();
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// SELECT
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const char *sql_select = "SELECT value FROM data WHERE key=?;";
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ret |= sqlite3_prepare_v2(_db, sql_select, -1, &_stmt_select, nullptr);
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// REPLACE
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const char *sql_update = "REPLACE INTO data (key, value) VALUES (?,?);";
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ret |= sqlite3_prepare_v2(_db, sql_update, -1, &_stmt_update, nullptr);
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// DELETE
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const char *sql_remove = "DELETE FROM data WHERE key=?;";
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ret |= sqlite3_prepare_v2(_db, sql_remove, -1, &_stmt_remove, nullptr);
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if( ret != SQLITE_OK ) {
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printf("Error initializing DB\n");
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// report error
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}
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_initialized = 1;
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}
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}
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void localStorageFree()
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{
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if( _initialized ) {
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sqlite3_finalize(_stmt_select);
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sqlite3_finalize(_stmt_remove);
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sqlite3_finalize(_stmt_update);
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sqlite3_close(_db);
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_initialized = 0;
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}
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}
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/** sets an item in the LS */
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void localStorageSetItem( const std::string& key, const std::string& value)
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{
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assert( _initialized );
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int ok = sqlite3_bind_text(_stmt_update, 1, key.c_str(), -1, SQLITE_TRANSIENT);
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ok |= sqlite3_bind_text(_stmt_update, 2, value.c_str(), -1, SQLITE_TRANSIENT);
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ok |= sqlite3_step(_stmt_update);
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ok |= sqlite3_reset(_stmt_update);
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if( ok != SQLITE_OK && ok != SQLITE_DONE)
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printf("Error in localStorage.setItem()\n");
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}
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/** gets an item from the LS */
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std::string localStorageGetItem( const std::string& key )
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{
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assert( _initialized );
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std::string ret;
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int ok = sqlite3_reset(_stmt_select);
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ok |= sqlite3_bind_text(_stmt_select, 1, key.c_str(), -1, SQLITE_TRANSIENT);
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ok |= sqlite3_step(_stmt_select);
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const unsigned char *text = sqlite3_column_text(_stmt_select, 0);
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if (text)
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ret = (const char*)text;
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if( ok != SQLITE_OK && ok != SQLITE_DONE && ok != SQLITE_ROW)
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printf("Error in localStorage.getItem()\n");
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return ret;
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}
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/** removes an item from the LS */
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void localStorageRemoveItem( const std::string& key )
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{
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assert( _initialized );
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int ok = sqlite3_bind_text(_stmt_remove, 1, key.c_str(), -1, SQLITE_TRANSIENT);
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ok |= sqlite3_step(_stmt_remove);
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ok |= sqlite3_reset(_stmt_remove);
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if( ok != SQLITE_OK && ok != SQLITE_DONE)
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printf("Error in localStorage.removeItem()\n");
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}
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#endif // #if (CC_TARGET_PLATFORM != CC_PLATFORM_ANDROID)
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