gnome.py 文件源码

def abort_on_exception(func):  # noqa
    """
    This function decorator wraps the run() method of a thread
    so that any exceptions in that thread will be logged and
    cause the threads 'abort' signal to be emitted with the exception
    as an argument.  This way all exception handling can occur
    on the main thread.

    Note that the entire sys.exc_info() tuple is passed out, this
    allows the current traceback to be used in the other thread.
    """
    def wrapper(*args, **kwargs):
        try:
            return func(*args, **kwargs)
        except Exception as e:
            thread_object = args[0]
            exc_type, exc_value, exc_tb = exc_info = sys.exc_info()
            filename, line_num, func_name, text = traceback.extract_tb(exc_tb)[-1]
            logger.error('Exception Thrown from [%s] on line [%s] via function [%s]' % (filename, line_num, func_name))
            logger.error('Exception type %s: %s' % (e.__class__.__name__, e.message))
            thread_object.emit('aborted', exc_info)
    return wrapper