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* Make DBSyncConnection simpler and hopefully more fail-safe.

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This commit is contained in:
Christian Muehlhaeuser 2011-09-12 06:29:40 +02:00
parent 577a706b9f
commit 6c55d1e510
2 changed files with 12 additions and 43 deletions
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49
src/libtomahawk/network/dbsyncconnection.cpp
View File

@ -143,14 +143,9 @@ DBSyncConnection::check()
connect( cmd_us, SIGNAL( done( QVariantMap ) ), SLOT( gotUs( QVariantMap ) ) );
Database::instance()->enqueue( QSharedPointer<DatabaseCommand>(cmd_us) );
if ( m_lastop.isEmpty() )
{
DatabaseCommand_CollectionStats* cmd_them = new DatabaseCommand_CollectionStats( m_source );
connect( cmd_them, SIGNAL( done( QVariantMap ) ), SLOT( gotThem( QVariantMap ) ) );
Database::instance()->enqueue( QSharedPointer<DatabaseCommand>(cmd_them) );
}
else
fetchOpsData( m_lastop );
DatabaseCommand_CollectionStats* cmd_them = new DatabaseCommand_CollectionStats( m_source );
connect( cmd_them, SIGNAL( done( QVariantMap ) ), SLOT( gotThem( QVariantMap ) ) );
Database::instance()->enqueue( QSharedPointer<DatabaseCommand>(cmd_them) );
// restarts idle countdown
m_timer.start();
@ -172,9 +167,7 @@ DBSyncConnection::gotUs( const QVariantMap& m )
void
DBSyncConnection::gotThem( const QVariantMap& m )
{
m_lastop = m.value( "lastop" ).toString();
fetchOpsData( m_lastop );
fetchOpsData( m.value( "lastop" ).toString() );
}
@ -235,22 +228,8 @@ DBSyncConnection::handleMsg( msg_ptr msg )
qDebug() << "UNKNOWN DBOP CMD";
return;
}
QSharedPointer<DatabaseCommand> cmdsp = QSharedPointer<DatabaseCommand>(cmd);
if ( m_recentTempOps.contains( cmd->guid() ) )
{
qDebug() << "Ignoring dupe temporary command:" << cmd->guid();
return;
}
if ( !cmd->singletonCmd() )
{
m_lastop = cmd->guid();
m_recentTempOps.clear();
}
else
m_recentTempOps << cmd->guid();
m_cmds << cmdsp;
if ( !msg->is( Msg::FRAGMENT ) ) // last msg in this batch
@ -271,7 +250,7 @@ DBSyncConnection::handleMsg( msg_ptr msg )
if ( m.value( "method" ).toString() == "trigger" )
{
// qDebug() << "Got trigger msg on dbsyncconnection, checking for new stuff.";
tLog( LOGVERBOSE ) << "Got trigger msg on dbsyncconnection, checking for new stuff.";
check();
return;
}
@ -284,19 +263,13 @@ DBSyncConnection::handleMsg( msg_ptr msg )
void
DBSyncConnection::executeCommands()
{
while ( !m_cmds.isEmpty() )
if ( !m_cmds.isEmpty() )
{
QSharedPointer<DatabaseCommand> cmd = m_cmds.takeFirst();
connect( cmd.data(), SIGNAL( finished() ), SLOT( onCommandFinished() ) );
connect( cmd.data(), SIGNAL( finished() ), SLOT( executeCommands() ) );
Database::instance()->enqueue( cmd );
}
}
void
DBSyncConnection::onCommandFinished()
{
if ( m_cmds.isEmpty() )
else
{
changeState( SYNCED );
// check again, until peer responds we have no new ops to process
@ -309,7 +282,7 @@ DBSyncConnection::onCommandFinished()
void
DBSyncConnection::sendOps()
{
tLog() << "Will send peer" << m_source->id() << "all ops since" << m_uscache.value( "lastop" ).toString();
tLog( LOGVERBOSE ) << "Will send peer" << m_source->id() << "all ops since" << m_uscache.value( "lastop" ).toString();
source_ptr src = SourceList::instance()->getLocal();
@ -334,7 +307,7 @@ DBSyncConnection::sendOpsData( QString sinceguid, QString lastguid, QList< dbop_
return;
}
qDebug() << Q_FUNC_INFO << sinceguid << lastguid << "Num ops to send:" << ops.length();
tLog( LOGVERBOSE ) << Q_FUNC_INFO << sinceguid << lastguid << "Num ops to send:" << ops.length();
int i;
for( i = 0; i < ops.length(); ++i )

6
src/libtomahawk/network/dbsyncconnection.h
View File

@ -70,8 +70,7 @@ private slots:
void fetchOpsData( const QString& sinceguid );
void sendOpsData( QString sinceguid, QString lastguid, QList< dbop_ptr > ops );
void onCommandFinished();
void executeCommands();
void check();
void idleTimeout();
@ -79,15 +78,12 @@ private slots:
private:
void synced();
void changeState( State newstate );
void executeCommands();
Tomahawk::source_ptr m_source;
QVariantMap m_us, m_uscache;
QList< QSharedPointer<DatabaseCommand> > m_cmds;
QString m_lastop;
QString m_lastSentOp;
QStringList m_recentTempOps;
State m_state;
QTimer m_timer;