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Code Issues Releases Wiki Activity

* Only store weak-pointers in the internal Album cache.

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This commit is contained in:
Christian Muehlhaeuser
2013-03-30 13:04:01 +01:00
parent a26df54d9f
commit 8e37ecbd05
2 changed files with 28 additions and 17 deletions
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41
src/libtomahawk/Album.cpp
View File

@@ -34,15 +34,15 @@
using namespace Tomahawk;
QHash< QString, album_ptr > Album::s_albumsByName = QHash< QString, album_ptr >();
QHash< unsigned int, album_ptr > Album::s_albumsById = QHash< unsigned int, album_ptr >();
QHash< QString, album_wptr > Album::s_albumsByName = QHash< QString, album_wptr >();
QHash< unsigned int, album_wptr > Album::s_albumsById = QHash< unsigned int, album_wptr >();
static QMutex s_nameCacheMutex;
static QMutex s_idCacheMutex;
static QReadWriteLock s_idMutex;
Album::~Album()
{
tDebug( LOGVERBOSE ) << Q_FUNC_INFO << "Deleting album:" << m_name << m_artist->name();
m_ownRef.clear();
#ifndef ENABLE_HEADLESS
@@ -63,12 +63,13 @@ Album::get( const Tomahawk::artist_ptr& artist, const QString& name, bool autoCr
if ( !Database::instance() || !Database::instance()->impl() )
return album_ptr();
QMutexLocker l( &s_nameCacheMutex );
QMutexLocker lock( &s_nameCacheMutex );
const QString key = albumCacheKey( artist, name );
if ( s_albumsByName.contains( key ) )
{
return s_albumsByName.value( key );
album_wptr album = s_albumsByName.value( key );
if ( !album.isNull() )
return album.toStrongRef();
}
album_ptr album = album_ptr( new Album( name, artist ) );
@@ -83,19 +84,24 @@ Album::get( const Tomahawk::artist_ptr& artist, const QString& name, bool autoCr
album_ptr
Album::get( unsigned int id, const QString& name, const Tomahawk::artist_ptr& artist )
{
static QHash< unsigned int, album_ptr > s_albums;
static QMutex s_mutex;
s_idMutex.lockForRead();
if ( s_albumsById.contains( id ) )
{
album_wptr album = s_albumsById.value( id );
s_idMutex.unlock();
QMutexLocker lock( &s_idCacheMutex );
if ( !album.isNull() )
return album;
}
s_idMutex.unlock();
QMutexLocker lock( &s_nameCacheMutex );
const QString key = albumCacheKey( artist, name );
if ( s_albumsByName.contains( key ) )
{
return s_albumsByName.value( key );
}
if ( s_albumsById.contains( id ) )
{
return s_albumsById.value( id );
album_wptr album = s_albumsByName.value( key );
if ( !album.isNull() )
return album;
}
album_ptr a = album_ptr( new Album( id, name, artist ), &QObject::deleteLater );
@@ -104,7 +110,9 @@ Album::get( unsigned int id, const QString& name, const Tomahawk::artist_ptr& ar
if ( id > 0 )
{
s_idMutex.lockForWrite();
s_albumsById.insert( id, a );
s_idMutex.unlock();
}
return a;
@@ -123,6 +131,7 @@ Album::Album( unsigned int id, const QString& name, const Tomahawk::artist_ptr&
, m_cover( 0 )
#endif
{
tDebug( LOGVERBOSE ) << Q_FUNC_INFO << "Creating album:" << id << name << artist->name();
m_sortname = DatabaseImpl::sortname( name );
}
@@ -138,9 +147,11 @@ Album::Album( const QString& name, const Tomahawk::artist_ptr& artist )
, m_cover( 0 )
#endif
{
tDebug( LOGVERBOSE ) << Q_FUNC_INFO << "Creating album:" << name << artist->name();
m_sortname = DatabaseImpl::sortname( name );
}
void
Album::onTracksLoaded( Tomahawk::ModelMode mode, const Tomahawk::collection_ptr& collection )
{
@@ -187,7 +198,7 @@ Album::id() const
m_waitingForId = false;
if ( m_id > 0 )
s_albumsById[ m_id ] = m_ownRef.toStrongRef();
s_albumsById.insert( m_id, m_ownRef.toStrongRef() );
s_idMutex.unlock();
}

4
src/libtomahawk/Album.h
View File

@@ -106,8 +106,8 @@ private:
QWeakPointer< Tomahawk::Album > m_ownRef;
static QHash< QString, album_ptr > s_albumsByName;
static QHash< unsigned int, album_ptr > s_albumsById;
static QHash< QString, album_wptr > s_albumsByName;
static QHash< unsigned int, album_wptr > s_albumsById;
friend class ::IdThreadWorker;
};