v8/tools/foozzie/v8_commands.py

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# Copyright 2016 the V8 project authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# Fork from commands.py and output.py in v8 test driver.
import signal
import subprocess
import sys
from threading import Event, Timer
class Output(object):
def __init__(self, exit_code, timed_out, stdout, pid):
self.exit_code = exit_code
self.timed_out = timed_out
self.stdout = stdout
self.pid = pid
def HasCrashed(self):
# Timed out tests will have exit_code -signal.SIGTERM.
if self.timed_out:
return False
return (self.exit_code < 0 and
self.exit_code != -signal.SIGABRT)
def HasTimedOut(self):
return self.timed_out
def Execute(args, cwd, timeout=None):
popen_args = [c for c in args if c != ""]
try:
process = subprocess.Popen(
args=popen_args,
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
cwd=cwd
)
except Exception as e:
sys.stderr.write("Error executing: %s\n" % popen_args)
raise e
timeout_event = Event()
def kill_process():
timeout_event.set()
try:
process.kill()
except OSError:
sys.stderr.write('Error: Process %s already ended.\n' % process.pid)
timer = Timer(timeout, kill_process)
timer.start()
stdout, _ = process.communicate()
timer.cancel()
return Output(
process.returncode,
timeout_event.is_set(),
stdout.decode('utf-8', 'replace').encode('utf-8'),
process.pid,
)