public MemoryStickDevice( IEmulationInstance emulator, ComponentParameters parameters, string hostPath, bool writeProtected, long capacity )
{
Debug.Assert( emulator != null );
Debug.Assert( parameters != null );
Debug.Assert( hostPath != null );
Debug.Assert( Directory.Exists( hostPath ) == true );
Debug.Assert( capacity > 0 );
_emulator = emulator;
_parameters = parameters;
_hostPath = hostPath;
_writeProtected = writeProtected;
DirectoryInfo info = new DirectoryInfo( hostPath );
_root = new MediaFolder( this, null, info );
_capacity = capacity;
long used = _root.Cache();
_available = _capacity - used;
if( _available < 0 )
{
// User gave a capacity that is too small for the size, fix it up
while( _capacity < used )
_capacity *= 2;
Log.WriteLine( Verbosity.Critical, Feature.Media, "MemoryStickDevice: user gave capacity {0} but {1} is used; changing capacity to {2}",
capacity, used, _capacity );
}
// Would be nice to do something with this that was official-like (serial number?)
_description = string.Format( "Memory Stick ({0}MB){1}",
_capacity / 1024 / 1024,
( _writeProtected == true ? " read-only" : "" ) );
}
internal MediaFile( IMediaDevice device, MediaFolder parent, FileInfo info )
{
Debug.Assert( device != null );
Debug.Assert( parent != null );
Debug.Assert( info != null );
_device = device;
_parent = parent;
_info = info;
// Add to parent
if( _parent != null )
_parent.AddItemInternal( this );
this.Refresh();
}
internal MediaFolder( IMediaDevice device, MediaFolder parent, DirectoryInfo info )
{
Debug.Assert( device != null );
Debug.Assert( info != null );
_device = device;
_parent = parent;
_info = info;
_items = new List<IMediaItem>();
_itemLookup = new Dictionary<string, IMediaItem>();
// Add to parent
if( _parent != null )
_parent.AddItemInternal( this );
this.Refresh();
}
public void Cleanup()
{
_root = null;
}
public bool MoveTo( IMediaFolder destination )
{
try
{
if( _device.IsReadOnly == true )
return false;
if( destination.Device.IsReadOnly == true )
return false;
this.Refresh();
_parent.RemoveItemInternal( this );
_info.MoveTo( Path.Combine( destination.AbsolutePath, _info.Name ) );
MediaFolder folder = destination as MediaFolder;
Debug.Assert( folder != null, "Do not support inter-device moves yet" );
folder.AddItemInternal( this );
_parent = folder;
}
catch
{
return false;
}
return true;
}
public void Cleanup()
{
_root = null;
}
public bool Load( string path, bool minimalCache )
{
_hostPath = path;
DirectoryInfo info = new DirectoryInfo( path );
_root = new MediaFolder( this, null, info );
long used = _root.Cache();
_available = _capacity - used;
if( _available < 0 )
{
// User gave a capacity that is too small for the size, fix it up
while( _capacity < used )
_capacity *= 2;
Log.WriteLine( Verbosity.Critical, Feature.Media, "UmdDevice: user gave capacity {0} but {1} is used; changing capacity to {2}",
_capacity, used, _capacity );
}
// Would be nice to do something with this that was official-like (serial number?)
_description = string.Format( "UMD ({0}MB)",
_capacity / 1024 / 1024 );
return true;
}
internal long Cache()
{
long sum = 0;
foreach( DirectoryInfo info in _info.GetDirectories() )
{
MediaFolder folder = new MediaFolder( _device, this, info );
sum += folder.Cache();
}
foreach( FileInfo info in _info.GetFiles() )
{
MediaFile file = new MediaFile( _device, this, info );
sum += file.Length;
}
return sum;
}
public IMediaFolder CreateFolder( string name )
{
if( _device.IsReadOnly == true )
return null;
Debug.Assert( name != null );
Debug.Assert( name.Length > 0 );
// TODO: Assert name is valid directory style via regex, here we just do / check
Debug.Assert( name.IndexOfAny( new char[] { '/', '\\' } ) < 0 );
DirectoryInfo info = Directory.CreateDirectory( Path.Combine( _info.FullName, name ) );
MediaFolder folder = new MediaFolder( _device, this, info );
return folder;
}
