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#!/bin/bash
# Find or start a systemtap server
#
# Copyright (C) 2008 Red Hat Inc.
#
# This file is part of systemtap, and is free software. You can
# redistribute it and/or modify it under the terms of the GNU General
# Public License (GPL); either version 2, or (at your option) any
# later version.
# This script attempts to find a systemtap server. If one is found, it
# echoes 0 and exits with 0.
#
# Otherwise, it attempts to start a server. If succesful, it echoes the
# process id and exits with 0.
#
# Otherwise, it echoes -1 and exits with 1
# Is there a server available?
stap-find-servers >/dev/null 2>&1 && echo 0 && exit 0
# No server available, try to start one.
pid=`stap-start-server`
if test $? = 0; then
echo $pid
exit 0
fi
# Could not find or start a server
echo -1
exit 1
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