Sends a kill signal (SIGKILL 9) to all currently running jobs

    CLI Example:

    .. code-block:: bash

        salt '*' saltutil.kill_all_jobs

def kill_all_jobs():
    '''
    Sends a kill signal (SIGKILL 9) to all currently running jobs

    CLI Example:

    .. code-block:: bash

        salt '*' saltutil.kill_all_jobs
    '''
    # Some OS's (Win32) don't have SIGKILL, so use salt_SIGKILL which is set to
    # an appropriate value for the operating system this is running on.
    ret = []
    for data in running():
        ret.append(signal_job(data['jid'], salt_SIGKILL))
    return ret