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/*********************************************************************************
NixNote - An open-source client for the Evernote service.
Copyright (C) 2014 Randy Baumgarte
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
***********************************************************************************/
#include "nsqlquery.h"
#include <QSqlQuery>
#include <QSqlError>
#include "global.h"
// Windows Check
#ifndef _WIN32
#include <execinfo.h>
#endif // End windows check
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
// The following include is needed for demangling names on a backtrace
#include <cxxabi.h>
extern Global global;
// Constructor
NSqlQuery::NSqlQuery(DatabaseConnection *db) :
QSqlQuery(db->conn)
{
this->db = db;
DEBUG_TRIGGER = 100;
INDEX_PAUSE_TRIGGER = 10;
}
// Destructor
NSqlQuery::~NSqlQuery() {
this->finish();
// if (db->dbLocked) {
// QLOG_DEBUG() << "*** Warning: NSqlQuery Terminating with lock active";
// global.stackDump();
// }
}
QString getLastExecutedQuery(const QSqlQuery& query)
{
QString str = query.lastQuery();
QMapIterator<QString, QVariant> it(query.boundValues());
while (it.hasNext())
{
it.next();
str.replace(it.key(),it.value().toString());
}
return str;
}
// Generic exec(). A prepare should have been done already
bool NSqlQuery::exec() {
bool indexPauseSave;
bool indexRestoreNeeded = false;
//QLOG_DEBUG() << "Sending SQL:" << getLastExecutedQuery(*this);
for (int i=1; i<1000; i++) {
bool rc = QSqlQuery::exec();
if (rc) {
if (indexRestoreNeeded)
global.indexRunner->pauseIndexing = indexPauseSave;
return true;
}
if (lastError().number() != DATABASE_LOCKED)
return false;
if (i>DEBUG_TRIGGER) {
QLOG_ERROR() << "DB Locked: Retry #" << i;
}
if (i == INDEX_PAUSE_TRIGGER && this->db->getConnectionName() != "indexrunner") {
QLOG_DEBUG() << "Pausing indexrunner due to db lock";
indexPauseSave = global.indexRunner->pauseIndexing;
indexRestoreNeeded = true;
global.indexRunner->pauseIndexing=true;
}
// Print stack trace to see what is happening
if (i==DEBUG_TRIGGER) {
QLOG_DEBUG() << "Dumping stack due to DB lock limit of " << DEBUG_TRIGGER << " being reached.";
global.stackDump();
}
QTime dieTime= QTime::currentTime().addSecs(1);
while( QTime::currentTime() < dieTime )
QCoreApplication::processEvents(QEventLoop::AllEvents, 100);
}
if (indexRestoreNeeded)
global.indexRunner->pauseIndexing = indexPauseSave;
return false;
}
// Execute a SQL statement
bool NSqlQuery::exec(const QString &query) {
bool indexPauseSave;
bool indexRestoreNeeded = false;
//QLOG_DEBUG() << "Sending SQL:" << query;
for (int i=1; i<1000; i++) {
bool rc = QSqlQuery::exec(query);
if (rc) {
if (indexRestoreNeeded)
global.indexRunner->pauseIndexing = indexPauseSave;
return true;
}
if (lastError().number() != DATABASE_LOCKED)
return false;
if (i == INDEX_PAUSE_TRIGGER && this->db->getConnectionName() != "indexrunner") {
QLOG_DEBUG() << "Pausing indexrunner due to db lock";
indexPauseSave = global.indexRunner->pauseIndexing;
indexRestoreNeeded = true;
global.indexRunner->pauseIndexing=true;
}
if (i>DEBUG_TRIGGER) {
QLOG_ERROR() << "DB Locked: Retry #" << i;
}
// Print stack dump to see what is happening
if (i==DEBUG_TRIGGER) {
QLOG_DEBUG() << "Dumping stack due to DB lock limit of " << DEBUG_TRIGGER << " being reached.";
global.stackDump();
}
QTime dieTime= QTime::currentTime().addSecs(1);
while( QTime::currentTime() < dieTime )
QCoreApplication::processEvents(QEventLoop::AllEvents, 100);
}
if (indexRestoreNeeded)
global.indexRunner->pauseIndexing = indexPauseSave;
return false;
}
// Execute a SQL statement
bool NSqlQuery::exec(const string query) {
QString q;
q = QString::fromStdString(query);
return this->exec(q);
}
// Execute a SQL statement
bool NSqlQuery::exec(const char *query) {
QString q;
q = QString::fromStdString(query);
return this->exec(q);
}
#if QT_VERSION < 0x050000
// Override bindValue for SQL fix
void NSqlQuery::bindValue(const QString & placeholder, const QVariant & val, QSql::ParamType paramType) {
if (val.type() == QVariant::Bool) {
if (val.toBool() == true)
QSqlQuery::bindValue(placeholder, 1, paramType);
else
QSqlQuery::bindValue(placeholder, 0, paramType);
return;
}
QSqlQuery::bindValue(placeholder, val, paramType);
}
void NSqlQuery::bindValue(int pos, const QVariant &val, QSql::ParamType paramType) {
if (val.type() == QVariant::Bool) {
if (val.toBool() == true)
QSqlQuery::bindValue(pos, 1, paramType);
else
QSqlQuery::bindValue(pos, 0, paramType);
return;
}
QSqlQuery::bindValue(pos, val, paramType);
}
void NSqlQuery::addBindValue(const QVariant &val, QSql::ParamType paramType) {
if (val.type() == QVariant::Bool) {
if (val.toBool() == true)
QSqlQuery::addBindValue(1, paramType);
else
QSqlQuery::addBindValue(0, paramType);
}
QSqlQuery::addBindValue(val, paramType);
}
#endif
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