diff options
Diffstat (limited to 'www/cocoon/files/cocoonctl')
| -rw-r--r-- | www/cocoon/files/cocoonctl | 174 |
1 files changed, 144 insertions, 30 deletions
diff --git a/www/cocoon/files/cocoonctl b/www/cocoon/files/cocoonctl index fa62902..b1aad58 100644 --- a/www/cocoon/files/cocoonctl +++ b/www/cocoon/files/cocoonctl @@ -6,43 +6,157 @@ # Date Created: 2004-05-04 11:14:05 # Revision: $FreeBSD$ ################################################################################ +# Copyright (c) 2004, Jean-Baptiste Quenot <jb.quenot@caraldi.com> +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are met: +# +# * Redistributions of source code must retain the above copyright notice, this +# list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# * The name of the contributors may not be used to endorse or promote products +# derived from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +################################################################################ +# +# Files handled by this script (pid file, log files) must reside in a writable +# directory, ie the directory must be owned by the user running the program. -import sys, os, signal, time +import sys, os, signal, time, stat, re -LOGFILE = "%%LOGFILE%%" -PREFIX = "%%PREFIX%%" -APP_NAME = "%%APP_NAME%%" -PID_FILE = "%%PID_FILE%%" +def readProcessId(): + f = open(PID_FILE, 'r') + pid = int(f.readline()) + f.close() + return pid -if __name__ == '__main__': - if sys.argv[1] == "start": - # Append cocoon output to a log file - l = open(LOGFILE, 'a') - os.dup2(l.fileno(), sys.stdout.fileno()) - os.dup2(l.fileno(), sys.stderr.fileno()) +def isProgramRunning(pid): + # Send a dummy signal to the process. If it died, an exception is + # thrown + try: + os.kill(pid, signal.SIGCONT) + return 1 + except OSError: + return 0 - # Start cocoon in the background - command = PREFIX + "/sbin/" + APP_NAME + ".sh" - pid = os.spawnl(os.P_NOWAIT, command, command, "servlet") +def usage(): + print >> sys.stderr, "Usage: %s {start|stop|restart}" % sys.argv[0] - # Wait a little - time.sleep(0.4) +def start(): + cwd = os.getcwd() + if os.path.exists(PID_FILE): + # Read the process id + pid = readProcessId() - # Send a dummy signal to the process. If it died, an exception is - # thrown - os.kill(pid, signal.SIGCONT) + if isProgramRunning(pid): + print >> sys.stderr, '%s already started' % APP_NAME + sys.exit(3) - # It's alive, so write down the process id - f = open(PID_FILE, 'w') - print >> f, pid - f.close() - elif sys.argv[1] == "stop": + if not(os.path.exists(COMMAND)): + print >> sys.stderr, '%s cannot be found' % COMMAND + sys.exit(3) + + # Append program output to a log file + l = open(LOG_FILE, 'a') + orig_stderr = os.dup(sys.stderr.fileno()) + os.dup2(l.fileno(), sys.stdout.fileno()) + os.dup2(l.fileno(), sys.stderr.fileno()) + + finfo = os.stat(COMMAND)[stat.ST_MODE] + executable = stat.S_IMODE(finfo) & 0111 + if not(executable): + sys.stderr = os.fdopen(orig_stderr, 'w') + print >> sys.stderr, 'Cannot run %s, execute bit is missing' % COMMAND + sys.exit(5) + + if APP_HOME: + # Change current directory to APP_HOME + os.chdir(APP_HOME) + + # Start program in the background + pid = os.spawnv(os.P_NOWAIT, COMMAND, ARGS) + + # Wait a little + time.sleep(.4) + (status_pid, status) = os.waitpid(pid, os.WNOHANG) + + # Check program exit status, if available + if status_pid != 0 and os.WIFEXITED(status): + sys.stderr = os.fdopen(orig_stderr, 'w') + print >> sys.stderr, 'Could not start %s. Check %s for errors.' % (APP_NAME, LOG_FILE) + sys.exit(2) + + # It's alive, so write down the process id + os.chdir(cwd) + f = open(PID_FILE, 'w') + print >> f, pid + f.close() + +def warnNotRunning(): + if sys.argv[1] == "stop": + print >> sys.stderr, '%s is not running' % APP_NAME + else: + print >> sys.stderr, 'Warning: %s was not running' % APP_NAME + +def cleanup(): + os.unlink(PID_FILE) + +def stop(): + if os.path.exists(PID_FILE): # Read the process id - f = open(PID_FILE, 'r') - pid = int(f.readline()) - f.close() + pid = readProcessId() + else: + warnNotRunning() + return + + if not(isProgramRunning(pid)): + warnNotRunning() + cleanup() + return + + # Terminate program + os.kill(pid, signal.SIGTERM) + + while isProgramRunning(pid): + time.sleep(.1) + + cleanup() + +if __name__ == '__main__': + LOG_FILE = "%%LOG_FILE%%" + APP_NAME = "%%APP_NAME%%" + APP_HOME = "%%APP_HOME%%" + PID_FILE = "%%PID_FILE%%" + COMMAND = "%%PREFIX%%/sbin/%%APP_NAME%%.sh" + ARGS = [COMMAND, "servlet"] + + if len(sys.argv) != 2: + usage() + sys.exit(1) + + if sys.argv[1] == "start": + start() + + elif sys.argv[1] == "stop": + stop() + + elif sys.argv[1] == "restart": + stop() + start() - # Terminate cocoon - os.kill(pid, signal.SIGTERM) else: - print "Usage: %s start|stop" % sys.argv[0] + usage() + sys.exit(1) |
