public async Task <Stream> OpenFileAsync(FileSystemPath path, DesiredFileAccess access,
CancellationToken cancellationToken)
{
await AwaitExtensions.SwitchOffMainThreadAsync(cancellationToken);
return(OpenFile(path, access));
}
public Stream OpenFile(FileSystemPath path, DesiredFileAccess access)
{
if (!path.IsFile)
{
throw new ArgumentException("The specified path is not a file.", "path");
}
return(File.Open(GetPhysicalPath(path), FileMode.Open, access.ToFileAccess()));
}
public Stream OpenFile(FileSystemPath path, DesiredFileAccess access)
{
if (!path.IsFile)
{
throw new ArgumentException("The specified path is no file.", "path");
}
MemoryFile file;
if (!_files.TryGetValue(path, out file))
{
throw new FileNotFoundException();
}
return(new MemoryFileStream(file));
}
public static FileAccess ToFileAccess(this DesiredFileAccess desiredFileAccess)
{
return((FileAccess)desiredFileAccess);
}