mirror of
https://github.com/uroni/urbackup_backend.git
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104 lines
2.6 KiB
C++
104 lines
2.6 KiB
C++
/*************************************************************************
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* UrBackup - Client/Server backup system
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* Copyright (C) 2011-2016 Martin Raiber
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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**************************************************************************/
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#include "DatabaseCursor.h"
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#include "Query.h"
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#ifdef USE_SYSTEM_SQLITE
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#include <sqlite3.h>
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#else
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#include "sqlite/sqlite3.h"
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#endif
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#include "Server.h"
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DatabaseCursor::DatabaseCursor(CQuery *query, int *timeoutms)
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: query(query), transaction_lock(false), tries(60), timeoutms(timeoutms),
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lastErr(SQLITE_OK), _has_error(false), is_shutdown(false)
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#ifdef LOG_READ_QUERIES
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, db(db)
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#endif
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{
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query->setupStepping(timeoutms, true);
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#ifdef LOG_READ_QUERIES
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active_query=new ScopedAddActiveQuery(query);
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#endif
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}
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DatabaseCursor::~DatabaseCursor(void)
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{
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shutdown();
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}
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bool DatabaseCursor::reset()
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{
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tries = 60;
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lastErr = SQLITE_OK;
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_has_error = false;
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is_shutdown = false;
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transaction_lock = false;
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query->setupStepping(timeoutms, false);
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#ifdef LOG_READ_QUERIES
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active_query = new ScopedAddActiveQuery(query);
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#endif
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return true;
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}
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bool DatabaseCursor::next(db_single_result &res)
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{
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res.clear();
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do
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{
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bool reset=false;
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lastErr=query->step(res, timeoutms, tries, transaction_lock, reset);
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//TODO handle reset (should not happen in WAL mode)
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if(lastErr==SQLITE_ROW)
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{
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return true;
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}
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}
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while(query->resultOkay(lastErr));
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if(lastErr!=SQLITE_DONE)
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{
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Server->Log("SQL Error: "+query->getErrMsg()+ " Stmt: ["+query->getStatement()+"]", LL_ERROR);
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_has_error=true;
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}
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return false;
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}
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bool DatabaseCursor::has_error(void)
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{
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return _has_error;
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}
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void DatabaseCursor::shutdown()
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{
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if (!is_shutdown)
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{
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is_shutdown = true;
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query->shutdownStepping(lastErr, timeoutms, transaction_lock);
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#ifdef LOG_READ_QUERIES
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delete active_query;
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#endif
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}
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}
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