| # Copyright 2012 the V8 project authors. 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. |
| # * Neither the name of Google Inc. nor the names of its |
| # contributors may 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. |
| |
| |
| import os |
| import signal |
| import subprocess |
| import sys |
| import tempfile |
| import time |
| |
| from ..local import utils |
| from ..objects import output |
| |
| |
| def KillProcessWithID(pid): |
| if utils.IsWindows(): |
| os.popen('taskkill /T /F /PID %d' % pid) |
| else: |
| os.kill(pid, signal.SIGTERM) |
| |
| |
| MAX_SLEEP_TIME = 0.1 |
| INITIAL_SLEEP_TIME = 0.0001 |
| SLEEP_TIME_FACTOR = 1.25 |
| |
| SEM_INVALID_VALUE = -1 |
| SEM_NOGPFAULTERRORBOX = 0x0002 # Microsoft Platform SDK WinBase.h |
| |
| |
| def Win32SetErrorMode(mode): |
| prev_error_mode = SEM_INVALID_VALUE |
| try: |
| import ctypes |
| prev_error_mode = \ |
| ctypes.windll.kernel32.SetErrorMode(mode) #@UndefinedVariable |
| except ImportError: |
| pass |
| return prev_error_mode |
| |
| |
| def RunProcess(verbose, timeout, args, **rest): |
| if verbose: print "#", " ".join(args) |
| popen_args = args |
| prev_error_mode = SEM_INVALID_VALUE |
| if utils.IsWindows(): |
| popen_args = subprocess.list2cmdline(args) |
| # Try to change the error mode to avoid dialogs on fatal errors. Don't |
| # touch any existing error mode flags by merging the existing error mode. |
| # See http://blogs.msdn.com/oldnewthing/archive/2004/07/27/198410.aspx. |
| error_mode = SEM_NOGPFAULTERRORBOX |
| prev_error_mode = Win32SetErrorMode(error_mode) |
| Win32SetErrorMode(error_mode | prev_error_mode) |
| process = subprocess.Popen( |
| shell=utils.IsWindows(), |
| args=popen_args, |
| **rest |
| ) |
| if (utils.IsWindows() and prev_error_mode != SEM_INVALID_VALUE): |
| Win32SetErrorMode(prev_error_mode) |
| # Compute the end time - if the process crosses this limit we |
| # consider it timed out. |
| if timeout is None: end_time = None |
| else: end_time = time.time() + timeout |
| timed_out = False |
| # Repeatedly check the exit code from the process in a |
| # loop and keep track of whether or not it times out. |
| exit_code = None |
| sleep_time = INITIAL_SLEEP_TIME |
| while exit_code is None: |
| if (not end_time is None) and (time.time() >= end_time): |
| # Kill the process and wait for it to exit. |
| KillProcessWithID(process.pid) |
| exit_code = process.wait() |
| timed_out = True |
| else: |
| exit_code = process.poll() |
| time.sleep(sleep_time) |
| sleep_time = sleep_time * SLEEP_TIME_FACTOR |
| if sleep_time > MAX_SLEEP_TIME: |
| sleep_time = MAX_SLEEP_TIME |
| return (exit_code, timed_out) |
| |
| |
| def PrintError(string): |
| sys.stderr.write(string) |
| sys.stderr.write("\n") |
| |
| |
| def CheckedUnlink(name): |
| # On Windows, when run with -jN in parallel processes, |
| # OS often fails to unlink the temp file. Not sure why. |
| # Need to retry. |
| # Idea from https://bugs.webkit.org/attachment.cgi?id=75982&action=prettypatch |
| retry_count = 0 |
| while retry_count < 30: |
| try: |
| os.unlink(name) |
| return |
| except OSError, e: |
| retry_count += 1 |
| time.sleep(retry_count * 0.1) |
| PrintError("os.unlink() " + str(e)) |
| |
| |
| def Execute(args, verbose=False, timeout=None): |
| try: |
| args = [ c for c in args if c != "" ] |
| (fd_out, outname) = tempfile.mkstemp() |
| (fd_err, errname) = tempfile.mkstemp() |
| (exit_code, timed_out) = RunProcess( |
| verbose, |
| timeout, |
| args=args, |
| stdout=fd_out, |
| stderr=fd_err |
| ) |
| finally: |
| # TODO(machenbach): A keyboard interrupt before the assignment to |
| # fd_out|err can lead to reference errors here. |
| os.close(fd_out) |
| os.close(fd_err) |
| out = file(outname).read() |
| errors = file(errname).read() |
| CheckedUnlink(outname) |
| CheckedUnlink(errname) |
| return output.Output(exit_code, timed_out, out, errors) |