gecko/testing/sisyphus/bin/timed_run.py

157 lines
4.7 KiB
Python
Executable File

#!/usr/bin/python -u
# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
# http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
#
# The Original Code is mozilla.org code.
#
# The Initial Developer of the Original Code is
# Mozilla Foundation.
# Portions created by the Initial Developer are Copyright (C) 2004
# the Initial Developer. All Rights Reserved.
#
# Contributor(s): Chris Cooper
# Jesse Ruderman
#
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****
# Usage: timed_run timeout prefix command args
import os, signal, sys, time
#
# returns exit code as follows:
#
exitOSError = 66
exitSignal = 77
exitTimeout = 88
exitInterrupt = 99
pid = None
prefix = sys.argv[2]
elapsedtime = 0
if prefix == "-":
prefix = ''
else:
prefix = prefix + ':'
def getSignalName(num):
for p in dir(signal):
if p.startswith("SIG") and not p.startswith("SIG_"):
if getattr(signal, p) == num:
return p
return "UNKNOWN"
def alarm_handler(signum, frame):
global pid
global prefix
try:
stoptime = time.time()
elapsedtime = stoptime - starttime
print "\n%s EXIT STATUS: TIMED OUT (%s seconds)\n" % (prefix, elapsedtime)
flushkill(pid, signal.SIGKILL)
except OSError, e:
print "\ntimed_run.py: exception trying to kill process: %d (%s)\n" % (e.errno, e.strerror)
pass
flushexit(exitTimeout)
def forkexec(command, args):
global prefix
global elapsedtime
#print command
#print args
try:
pid = os.fork()
if pid == 0: # Child
os.execvp(command, args)
flushbuffers()
else: # Parent
return pid
except OSError, e:
print "\n%s ERROR: %s %s failed: %d (%s) (%f seconds)\n" % (prefix, command, args, e.errno, e.strerror, elapsedtime)
flushexit(exitOSError)
def flushbuffers():
sys.stdout.flush()
sys.stderr.flush()
def flushexit(rc):
flushbuffers()
sys.exit(rc)
def flushkill(pid, sig):
flushbuffers()
os.kill(pid, sig)
signal.signal(signal.SIGALRM, alarm_handler)
signal.alarm(int(sys.argv[1]))
starttime = time.time()
try:
pid = forkexec(sys.argv[3], sys.argv[3:])
status = os.waitpid(pid, 0)[1]
signal.alarm(0) # Cancel the alarm
stoptime = time.time()
elapsedtime = stoptime - starttime
# it appears that linux at least will on "occasion" return a status
# when the process was terminated by a signal, so test signal first.
if os.WIFSIGNALED(status):
signum = os.WTERMSIG(status)
if signum == 2:
msg = 'INTERRUPT'
rc = exitInterrupt
else:
msg = 'CRASHED'
rc = exitSignal
print "\n%s EXIT STATUS: %s signal %d %s (%f seconds)\n" % (prefix, msg, signum, getSignalName(signum), elapsedtime)
flushexit(rc)
elif os.WIFEXITED(status):
rc = os.WEXITSTATUS(status)
msg = ''
if rc == 0:
msg = 'NORMAL'
else:
msg = 'ABNORMAL ' + str(rc)
rc = exitSignal
print "\n%s EXIT STATUS: %s (%f seconds)\n" % (prefix, msg, elapsedtime)
flushexit(rc)
else:
print "\n%s EXIT STATUS: NONE (%f seconds)\n" % (prefix, elapsedtime)
flushexit(0)
except KeyboardInterrupt:
flushkill(pid, 9)
flushexit(exitInterrupt)
# check that the child process has terminated.
try:
os.getpgid(pid)
# process still exists. try to kill it and exit with OSError
flushkill(pid, 9)
flushexit(exitOSError)
except OSError:
# process doesn't exist. all is well.
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