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Code Issues Releases Wiki Activity

Store a strong reference to a playlist pointer so it will not be destroyed before the postCommitHook finishes

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This commit is contained in:
Uwe L. Korn
2014-05-11 20:59:57 +01:00
parent 731f172e46
commit b06b6a9da3
3 changed files with 13 additions and 21 deletions
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24
src/libtomahawk/database/DatabaseCommand_SetDynamicPlaylistRevision.cpp
View File

@@ -108,27 +108,21 @@ DatabaseCommand_SetDynamicPlaylistRevision::postCommitHook()
tLog() << "Postcommitting this playlist:" << playlistguid() << source().isNull();
// private, but we are a friend. will recall itself in its own thread:
DynamicPlaylist* rawPl = 0;
dynplaylist_ptr playlist = source()->dbCollection()->autoPlaylist( playlistguid() );
if ( playlist.isNull() )
{
playlist = source()->dbCollection()->station( playlistguid() );
}
if ( !playlist.isNull() )
{
rawPl = playlist.data();
}
else
if ( playlist.isNull() && !m_playlist.isNull() )
{
// if it's neither an auto or station, it must not be auto-loaded, so we MUST have been told about it directly
rawPl = m_playlist;
playlist = m_playlist;
}
if ( !rawPl )
if ( playlist.isNull() )
{
tLog() << "Got null playlist with guid:" << playlistguid() << "from source and collection:" << source()->friendlyName() << source()->dbCollection()->name() << "and mode is static?:" << (m_mode == Static);
// Q_ASSERT( false );
return;
}
@@ -139,13 +133,13 @@ DatabaseCommand_SetDynamicPlaylistRevision::postCommitHook()
controlMap << v.toMap();
if ( m_mode == OnDemand )
rawPl->setRevision( newrev(),
playlist->setRevision( newrev(),
true, // this *is* the newest revision so far
m_type,
controlMap,
m_applied );
else
rawPl->setRevision( newrev(),
playlist->setRevision( newrev(),
orderedentriesguids,
m_previous_rev_orderedguids,
m_type,
@@ -157,13 +151,13 @@ DatabaseCommand_SetDynamicPlaylistRevision::postCommitHook()
else
{
if ( m_mode == OnDemand )
rawPl->setRevision( newrev(),
playlist->setRevision( newrev(),
true, // this *is* the newest revision so far
m_type,
m_controls,
m_applied );
else
rawPl->setRevision( newrev(),
playlist->setRevision( newrev(),
orderedentriesguids,
m_previous_rev_orderedguids,
m_type,
@@ -269,9 +263,9 @@ DatabaseCommand_SetDynamicPlaylistRevision::exec( DatabaseImpl* lib )
}
void
DatabaseCommand_SetDynamicPlaylistRevision::setPlaylist( DynamicPlaylist* pl )
DatabaseCommand_SetDynamicPlaylistRevision::setPlaylist( QWeakPointer<DynamicPlaylist> pl )
{
m_playlist = pl;
m_playlist = pl.toStrongRef();
}
}

6
src/libtomahawk/database/DatabaseCommand_SetDynamicPlaylistRevision.h
View File

@@ -76,8 +76,7 @@ public:
void setType( const QString& type ) { m_type = type; }
void setMode( int mode ) { m_mode = (GeneratorMode)mode; }
// TODO: Pass wptr here, so we can get a strong reference again
void setPlaylist( DynamicPlaylist* pl ); // raw pointer b/c we don't have the shared pointer from inside the shared pointer
void setPlaylist( QWeakPointer<DynamicPlaylist> pl ); // raw pointer b/c we don't have the shared pointer from inside the shared pointer
private:
QString m_type;
@@ -85,8 +84,7 @@ private:
QList< dyncontrol_ptr > m_controls;
QList< QVariant > m_controlsV;
// ARG i hate sharedpointers sometimes
DynamicPlaylist* m_playlist; // Only used if setting revision of a non-autoloaded playlist, as those aren't able to be looked up by guid
QSharedPointer<DynamicPlaylist> m_playlist; // Only used if setting revision of a non-autoloaded playlist, as those aren't able to be looked up by guid
};
}

4
src/libtomahawk/playlist/dynamic/DynamicPlaylist.cpp
View File

@@ -242,7 +242,7 @@ DynamicPlaylist::createNewRevision( const QString& newrev,
Static,
controls );
if ( !d->autoLoad )
cmd->setPlaylist( this );
cmd->setPlaylist( d->weakSelf );
Database::instance()->enqueue( Tomahawk::dbcmd_ptr( cmd ) );
}
@@ -278,7 +278,7 @@ DynamicPlaylist::createNewRevision( const QString& newrev,
OnDemand,
controls );
if ( !d->autoLoad )
cmd->setPlaylist( this );
cmd->setPlaylist( d->weakSelf );
Database::instance()->enqueue( Tomahawk::dbcmd_ptr( cmd ) );
}