public VFSReadFacade(VFSFactory vfsFactory, VFSModeAdapterFacory vfsModeAdapterFacory, Decorator.VFS vfs)
: base(vfsFactory, vfsModeAdapterFacory, vfs)
{
_vfsStream = _vfsFactory.GetVFSStream(_vfs);
VFSFileNames = new ArraySegment <string>();
VFSModel = new ArraySegment <VFSModel>();
}
public VFSStream GetVFSStream(Decorator.VFS vfs)
{
Validations.NotNull(vfs);
using (var result = new VFSStream(vfs))
{
return(result);
}
}
private static IntPtr VFSOpenHandler(IntPtr path, uint mode, uint hints)
{
var output = IntPtr.Zero;
if (path == IntPtr.Zero)
{
return(output);
}
var pathStr = Marshal.PtrToStringAnsi(path);
var access = FileAccess.Read;
if ((mode & Constants.RETRO_VFS_FILE_ACCESS_WRITE) == Constants.RETRO_VFS_FILE_ACCESS_WRITE)
{
access = FileAccess.Write;
}
if ((mode & Constants.RETRO_VFS_FILE_ACCESS_READ_WRITE) == Constants.RETRO_VFS_FILE_ACCESS_READ_WRITE)
{
access = FileAccess.ReadWrite;
}
var stream = default(Stream);
try
{
stream = OpenFileStream?.Invoke(pathStr, access);
}
catch
{
return(output);
}
if (stream == null)
{
return(output);
}
var vfsStream = new VFSStream(pathStr, stream);
var handle = GCHandle.Alloc(vfsStream);
output = GCHandle.ToIntPtr(handle);
return(output);
}
