| #!/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. |
| |
| SOCAT="$1" |
| INSTANCE="$2" |
| MONITOR="$3" |
| PARAMS="$4" |
| CONSOLE="$5" |
| |
| unpause() { |
| echo "info status" | |
| "$SOCAT" STDIO "UNIX-CONNECT:$MONITOR" 2>/dev/null | |
| grep -q '^VM status: paused' || return |
| # As there is no way to be sure when the main socat has actually connected to |
| # the instance console, 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 $INSTANCE is paused, unpausing\r\n" |
| echo "c" | "$SOCAT" STDIO "UNIX-CONNECT:$MONITOR" &>/dev/null |
| } |
| |
| unpause & |
| exec "$SOCAT" "$PARAMS" "$CONSOLE" |
