#!/bin/bash # # Copyright (C) 2011 Google Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA # 02110-1301, USA. XEN_CMD="$1" INSTANCE="$2" unpause() { ispaused=$(xm list -l "$INSTANCE" 2>/dev/null | sed -n 's/^[[:blank:]]*(state ..\(.\)...)/\1/p') [[ "$ispaused" == "p" ]] || return # As there is no way to be sure when xm console has actually connected to the # instance, sleep for a few seconds before unpausing the instance. This is a # tradeoff between missing some console output if the node is overloaded and # making the user wait everytime when the node isn't so busy. sleep 3 # Send \r\n after notice as terminal is in raw mode printf "Instance $INSTANCE is paused, unpausing\r\n" xm unpause "$INSTANCE" } unpause & exec $XEN_CMD console "$INSTANCE"