X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=blobdiff_plain;f=src%2Fcore%2Fabstractsqlstorage.cpp;h=7e5dee59b5fcbc3b50c3db58923ac50ca617fc1b;hp=39198258f818c5e249529551de9be680da633ac6;hb=7c9c1b348382b8b77f96a883945c522d32a478d5;hpb=50680e8d8548a9b856faa7c5d3d5d4ae4a6be2bd diff --git a/src/core/abstractsqlstorage.cpp b/src/core/abstractsqlstorage.cpp index 39198258..7e5dee59 100644 --- a/src/core/abstractsqlstorage.cpp +++ b/src/core/abstractsqlstorage.cpp @@ -1,5 +1,5 @@ /*************************************************************************** - * Copyright (C) 2005-07 by the Quassel IRC Team * + * Copyright (C) 2005-07 by the Quassel Project * * devel@quassel-irc.org * * * * This program is free software; you can redistribute it and/or modify * @@ -22,49 +22,51 @@ #include "logger.h" +#include #include #include AbstractSqlStorage::AbstractSqlStorage(QObject *parent) : Storage(parent), - _schemaVersion(0) + _schemaVersion(0), + _nextConnectionId(0) { } AbstractSqlStorage::~AbstractSqlStorage() { - QHash, QSqlQuery *>::iterator iter = _queryCache.begin(); - while(iter != _queryCache.end()) { - delete *iter; - iter = _queryCache.erase(iter); + // disconnect the connections, so their deletion is no longer interessting for us + QHash::iterator conIter; + for(conIter = _connectionPool.begin(); conIter != _connectionPool.end(); conIter++) { + disconnect(conIter.value(), 0, this, 0); } - - { - QSqlDatabase db = QSqlDatabase::database("quassel_connection"); - db.commit(); - db.close(); - } - QSqlDatabase::removeDatabase("quassel_connection"); } QSqlDatabase AbstractSqlStorage::logDb() { - QSqlDatabase db = QSqlDatabase::database("quassel_connection"); - if(db.isValid() && db.isOpen()) - return db; - - if(!openDb()) { - quWarning() << "Unable to Open Database" << displayName(); - quWarning() << "-" << db.lastError().text(); - } + if(!_connectionPool.contains(QThread::currentThread())) + addConnectionToPool(); - return QSqlDatabase::database("quassel_connection"); + return QSqlDatabase::database(_connectionPool[QThread::currentThread()]->name()); } -bool AbstractSqlStorage::openDb() { - QSqlDatabase db = QSqlDatabase::database("quassel_connection"); - if(db.isValid() && !db.isOpen()) - return db.open(); +void AbstractSqlStorage::addConnectionToPool() { + QMutexLocker locker(&_connectionPoolMutex); + // we have to recheck if the connection pool already contains a connection for + // this thread. Since now (after the lock) we can only tell for sure + if(_connectionPool.contains(QThread::currentThread())) + return; + + QThread *currentThread = QThread::currentThread(); + + int connectionId = _nextConnectionId++; - db = QSqlDatabase::addDatabase(driverName(), "quassel_connection"); + Connection *connection = new Connection(QLatin1String(QString("quassel_connection_%1").arg(connectionId).toLatin1())); + connection->moveToThread(currentThread); + connect(this, SIGNAL(destroyed()), connection, SLOT(deleteLater())); + connect(currentThread, SIGNAL(destroyed()), connection, SLOT(deleteLater())); + connect(connection, SIGNAL(destroyed()), this, SLOT(connectionDestroyed())); + _connectionPool[currentThread] = connection; + + QSqlDatabase db = QSqlDatabase::addDatabase(driverName(), connection->name()); db.setDatabaseName(databaseName()); if(!hostName().isEmpty()) @@ -75,52 +77,48 @@ bool AbstractSqlStorage::openDb() { db.setPassword(password()); } - return db.open(); + if(!db.open()) { + qWarning() << "Unable to open database" << displayName() << "for thread" << QThread::currentThread(); + qWarning() << "-" << db.lastError().text(); + } } -bool AbstractSqlStorage::init(const QVariantMap &settings) { +Storage::State AbstractSqlStorage::init(const QVariantMap &settings) { Q_UNUSED(settings) + QSqlDatabase db = logDb(); if(!db.isValid() || !db.isOpen()) - return false; + return NotAvailable; if(installedSchemaVersion() == -1) { - quError() << "Storage Schema is missing!"; - return false; + qCritical() << "Storage Schema is missing!"; + return NeedsSetup; } if(installedSchemaVersion() > schemaVersion()) { - quError() << "Installed Schema is newer then any known Version."; - return false; - } - - if(installedSchemaVersion() < schemaVersion()) { - quWarning() << "Installed Schema is not up to date. Upgrading..."; - if(!upgradeDb()) - return false; + qCritical() << "Installed Schema is newer then any known Version."; + return NotAvailable; } - - quInfo() << "Storage Backend is ready. Quassel Schema Version:" << installedSchemaVersion(); - return true; -} -void AbstractSqlStorage::sync() { - QHash, QSqlQuery *>::iterator iter = _queryCache.begin(); - while(iter != _queryCache.end()) { - delete *iter; - iter = _queryCache.erase(iter); + if(installedSchemaVersion() < schemaVersion()) { + qWarning() << qPrintable(tr("Installed Schema (version %1) is not up to date. Upgrading to version %2...").arg(installedSchemaVersion()).arg(schemaVersion())); + if(!upgradeDb()) { + qWarning() << qPrintable(tr("Upgrade failed...")); + return NotAvailable; + } } - logDb().commit(); + quInfo() << "Storage Backend is ready. Quassel Schema Version:" << installedSchemaVersion(); + return IsReady; } QString AbstractSqlStorage::queryString(const QString &queryName, int version) { if(version == 0) version = schemaVersion(); - + QFileInfo queryInfo(QString(":/SQL/%1/%2/%3.sql").arg(displayName()).arg(version).arg(queryName)); if(!queryInfo.exists() || !queryInfo.isFile() || !queryInfo.isReadable()) { - quError() << "Unable to read SQL-Query" << queryName << "for engine" << displayName(); + qCritical() << "Unable to read SQL-Query" << queryName << "for engine" << displayName(); return QString(); } @@ -129,26 +127,8 @@ QString AbstractSqlStorage::queryString(const QString &queryName, int version) { return QString(); QString query = QTextStream(&queryFile).readAll(); queryFile.close(); - - return query.trimmed(); -} - -QString AbstractSqlStorage::queryString(const QString &queryName) { - return queryString(queryName, 0); -} -QSqlQuery *AbstractSqlStorage::cachedQuery(const QString &queryName, int version) { - QPair queryId = qMakePair(queryName, version); - if(!_queryCache.contains(queryId)) { - QSqlQuery *query = new QSqlQuery(logDb()); - query->prepare(queryString(queryName, version)); - _queryCache[queryId] = query; - } - return _queryCache[queryId]; -} - -QSqlQuery *AbstractSqlStorage::cachedQuery(const QString &queryName) { - return cachedQuery(queryName, 0); + return query.trimmed(); } QStringList AbstractSqlStorage::setupQueries() { @@ -164,18 +144,18 @@ bool AbstractSqlStorage::setup(const QVariantMap &settings) { Q_UNUSED(settings) QSqlDatabase db = logDb(); if(!db.isOpen()) { - quError() << "Unable to setup Logging Backend!"; + qCritical() << "Unable to setup Logging Backend!"; return false; } foreach(QString queryString, setupQueries()) { QSqlQuery query = db.exec(queryString); - if(!watchQuery(&query)) { - quError() << "Unable to setup Logging Backend!"; + if(!watchQuery(query)) { + qCritical() << "Unable to setup Logging Backend!"; return false; } } - return true; + return setupSchemaVersion(schemaVersion()); } QStringList AbstractSqlStorage::upgradeQueries(int version) { @@ -196,13 +176,13 @@ bool AbstractSqlStorage::upgradeDb() { for(int ver = installedSchemaVersion() + 1; ver <= schemaVersion(); ver++) { foreach(QString queryString, upgradeQueries(ver)) { QSqlQuery query = db.exec(queryString); - if(!watchQuery(&query)) { - quError() << "Unable to upgrade Logging Backend!"; + if(!watchQuery(query)) { + qCritical() << "Unable to upgrade Logging Backend!"; return false; } } } - return true; + return updateSchemaVersion(schemaVersion()); } @@ -229,21 +209,46 @@ int AbstractSqlStorage::schemaVersion() { return _schemaVersion; } -bool AbstractSqlStorage::watchQuery(QSqlQuery *query) { - if(query->lastError().isValid()) { - quError() << "unhandled Error in QSqlQuery!"; - quError() << " last Query:\n" << query->lastQuery(); - quError() << " executed Query:\n" << query->executedQuery(); - quError() << " bound Values:"; - QList list = query->boundValues().values(); +bool AbstractSqlStorage::watchQuery(QSqlQuery &query) { + if(query.lastError().isValid()) { + qCritical() << "unhandled Error in QSqlQuery!"; + qCritical() << " last Query:\n" << query.lastQuery(); + qCritical() << " executed Query:\n" << query.executedQuery(); + qCritical() << " bound Values:"; + QList list = query.boundValues().values(); for (int i = 0; i < list.size(); ++i) - quError() << i << ": " << list.at(i).toString().toAscii().data(); - quError() << " Error Number:" << query->lastError().number(); - quError() << " Error Message:" << query->lastError().text(); - quError() << " Driver Message:" << query->lastError().driverText(); - quError() << " DB Message:" << query->lastError().databaseText(); - + qCritical() << i << ": " << list.at(i).toString().toAscii().data(); + qCritical() << " Error Number:" << query.lastError().number(); + qCritical() << " Error Message:" << query.lastError().text(); + qCritical() << " Driver Message:" << query.lastError().driverText(); + qCritical() << " DB Message:" << query.lastError().databaseText(); + return false; } return true; } + +void AbstractSqlStorage::connectionDestroyed() { + QMutexLocker locker(&_connectionPoolMutex); + _connectionPool.remove(sender()->thread()); +} + +// ======================================== +// AbstractSqlStorage::Connection +// ======================================== +AbstractSqlStorage::Connection::Connection(const QString &name, QObject *parent) + : QObject(parent), + _name(name.toLatin1()) +{ +} + +AbstractSqlStorage::Connection::~Connection() { + { + QSqlDatabase db = QSqlDatabase::database(name(), false); + if(db.isOpen()) { + db.commit(); + db.close(); + } + } + QSqlDatabase::removeDatabase(name()); +}