'Send a signal to all processes in the process list
@param string signal  Signal to send, as name (\'HUP\') or number (\'1\')
@return array         An array of process status info structs'

def signalAllProcesses(self, signal):

    processes = self._getAllProcesses()
    signalall = make_allfunc(processes, isRunning, self.signalProcess, signal=signal)
    result = signalall()
    self._update('signalAllProcesses')
    return result
