mirror of
https://github.com/Sneed-Group/Poodletooth-iLand
synced 2024-12-27 13:42:28 -06:00
810 lines
30 KiB
Python
Executable file
810 lines
30 KiB
Python
Executable file
from __future__ import absolute_import
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import sys
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import os
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import errno
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import types
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import gc
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import signal
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import traceback
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from gevent.event import AsyncResult
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from gevent.hub import get_hub, linkproxy, sleep, getcurrent
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from gevent.fileobject import FileObject
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from gevent.greenlet import Greenlet, joinall
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spawn = Greenlet.spawn
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import subprocess as __subprocess__
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# Standard functions and classes that this module re-implements in a gevent-aware way.
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__implements__ = ['Popen',
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'call',
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'check_call',
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'check_output']
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# Standard functions and classes that this module re-imports.
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__imports__ = ['PIPE',
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'STDOUT',
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'CalledProcessError',
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# Windows:
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'CREATE_NEW_CONSOLE',
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'CREATE_NEW_PROCESS_GROUP',
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'STD_INPUT_HANDLE',
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'STD_OUTPUT_HANDLE',
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'STD_ERROR_HANDLE',
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'SW_HIDE',
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'STARTF_USESTDHANDLES',
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'STARTF_USESHOWWINDOW']
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__extra__ = ['MAXFD',
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'_eintr_retry_call',
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'STARTUPINFO',
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'pywintypes',
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'list2cmdline',
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'_subprocess',
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# Python 2.5 does not have _subprocess, so we don't use it
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'WAIT_OBJECT_0',
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'WaitForSingleObject',
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'GetExitCodeProcess',
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'GetStdHandle',
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'CreatePipe',
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'DuplicateHandle',
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'GetCurrentProcess',
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'DUPLICATE_SAME_ACCESS',
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'GetModuleFileName',
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'GetVersion',
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'CreateProcess',
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'INFINITE',
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'TerminateProcess']
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for name in __imports__[:]:
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try:
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value = getattr(__subprocess__, name)
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globals()[name] = value
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except AttributeError:
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__imports__.remove(name)
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__extra__.append(name)
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if sys.version_info[:2] <= (2, 6):
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__implements__.remove('check_output')
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__extra__.append('check_output')
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_subprocess = getattr(__subprocess__, '_subprocess', None)
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_NONE = object()
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for name in __extra__[:]:
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if name in globals():
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continue
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value = _NONE
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try:
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value = getattr(__subprocess__, name)
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except AttributeError:
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if _subprocess is not None:
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try:
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value = getattr(_subprocess, name)
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except AttributeError:
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pass
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if value is _NONE:
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__extra__.remove(name)
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else:
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globals()[name] = value
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__all__ = __implements__ + __imports__
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mswindows = sys.platform == 'win32'
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if mswindows:
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import msvcrt
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else:
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import fcntl
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import pickle
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from gevent import monkey
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fork = monkey.get_original('os', 'fork')
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def call(*popenargs, **kwargs):
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"""Run command with arguments. Wait for command to complete, then
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return the returncode attribute.
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The arguments are the same as for the Popen constructor. Example:
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retcode = call(["ls", "-l"])
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"""
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return Popen(*popenargs, **kwargs).wait()
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def check_call(*popenargs, **kwargs):
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"""Run command with arguments. Wait for command to complete. If
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the exit code was zero then return, otherwise raise
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CalledProcessError. The CalledProcessError object will have the
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return code in the returncode attribute.
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The arguments are the same as for the Popen constructor. Example:
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check_call(["ls", "-l"])
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"""
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retcode = call(*popenargs, **kwargs)
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if retcode:
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cmd = kwargs.get("args")
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if cmd is None:
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cmd = popenargs[0]
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raise CalledProcessError(retcode, cmd)
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return 0
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def check_output(*popenargs, **kwargs):
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r"""Run command with arguments and return its output as a byte string.
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If the exit code was non-zero it raises a CalledProcessError. The
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CalledProcessError object will have the return code in the returncode
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attribute and output in the output attribute.
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The arguments are the same as for the Popen constructor. Example:
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>>> check_output(["ls", "-1", "/dev/null"])
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'/dev/null\n'
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The stdout argument is not allowed as it is used internally.
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To capture standard error in the result, use stderr=STDOUT.
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>>> check_output(["/bin/sh", "-c", "echo hello world"], stderr=STDOUT)
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'hello world\n'
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"""
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if 'stdout' in kwargs:
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raise ValueError('stdout argument not allowed, it will be overridden.')
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process = Popen(stdout=PIPE, *popenargs, **kwargs)
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output = process.communicate()[0]
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retcode = process.poll()
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if retcode:
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cmd = kwargs.get("args")
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if cmd is None:
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cmd = popenargs[0]
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ex = CalledProcessError(retcode, cmd)
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# on Python 2.6 and older CalledProcessError does not accept 'output' argument
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ex.output = output
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raise ex
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return output
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class Popen(object):
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def __init__(self, args, bufsize=0, executable=None,
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stdin=None, stdout=None, stderr=None,
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preexec_fn=None, close_fds=False, shell=False,
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cwd=None, env=None, universal_newlines=False,
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startupinfo=None, creationflags=0, threadpool=None):
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"""Create new Popen instance."""
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if not isinstance(bufsize, (int, long)):
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raise TypeError("bufsize must be an integer")
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hub = get_hub()
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if mswindows:
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if preexec_fn is not None:
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raise ValueError("preexec_fn is not supported on Windows "
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"platforms")
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if close_fds and (stdin is not None or stdout is not None or
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stderr is not None):
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raise ValueError("close_fds is not supported on Windows "
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"platforms if you redirect stdin/stdout/stderr")
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if threadpool is None:
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threadpool = hub.threadpool
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self.threadpool = threadpool
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self._waiting = False
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else:
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# POSIX
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if startupinfo is not None:
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raise ValueError("startupinfo is only supported on Windows "
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"platforms")
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if creationflags != 0:
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raise ValueError("creationflags is only supported on Windows "
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"platforms")
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assert threadpool is None
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self._loop = hub.loop
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self.stdin = None
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self.stdout = None
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self.stderr = None
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self.pid = None
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self.returncode = None
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self.universal_newlines = universal_newlines
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self.result = AsyncResult()
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# Input and output objects. The general principle is like
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# this:
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#
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# Parent Child
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# ------ -----
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# p2cwrite ---stdin---> p2cread
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# c2pread <--stdout--- c2pwrite
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# errread <--stderr--- errwrite
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#
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# On POSIX, the child objects are file descriptors. On
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# Windows, these are Windows file handles. The parent objects
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# are file descriptors on both platforms. The parent objects
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# are None when not using PIPEs. The child objects are None
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# when not redirecting.
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(p2cread, p2cwrite,
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c2pread, c2pwrite,
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errread, errwrite) = self._get_handles(stdin, stdout, stderr)
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self._execute_child(args, executable, preexec_fn, close_fds,
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cwd, env, universal_newlines,
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startupinfo, creationflags, shell,
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p2cread, p2cwrite,
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c2pread, c2pwrite,
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errread, errwrite)
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if mswindows:
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if p2cwrite is not None:
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p2cwrite = msvcrt.open_osfhandle(p2cwrite.Detach(), 0)
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if c2pread is not None:
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c2pread = msvcrt.open_osfhandle(c2pread.Detach(), 0)
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if errread is not None:
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errread = msvcrt.open_osfhandle(errread.Detach(), 0)
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if p2cwrite is not None:
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self.stdin = FileObject(p2cwrite, 'wb')
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if c2pread is not None:
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if universal_newlines:
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self.stdout = FileObject(c2pread, 'rU')
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else:
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self.stdout = FileObject(c2pread, 'rb')
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if errread is not None:
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if universal_newlines:
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self.stderr = FileObject(errread, 'rU')
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else:
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self.stderr = FileObject(errread, 'rb')
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def __repr__(self):
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return '<%s at 0x%x pid=%r returncode=%r>' % (self.__class__.__name__, id(self), self.pid, self.returncode)
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def _on_child(self, watcher):
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watcher.stop()
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status = watcher.rstatus
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if os.WIFSIGNALED(status):
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self.returncode = -os.WTERMSIG(status)
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else:
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self.returncode = os.WEXITSTATUS(status)
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self.result.set(self.returncode)
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def communicate(self, input=None):
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"""Interact with process: Send data to stdin. Read data from
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stdout and stderr, until end-of-file is reached. Wait for
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process to terminate. The optional input argument should be a
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string to be sent to the child process, or None, if no data
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should be sent to the child.
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communicate() returns a tuple (stdout, stderr)."""
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greenlets = []
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if self.stdin:
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greenlets.append(spawn(write_and_close, self.stdin, input))
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if self.stdout:
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stdout = spawn(self.stdout.read)
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greenlets.append(stdout)
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else:
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stdout = None
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if self.stderr:
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stderr = spawn(self.stderr.read)
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greenlets.append(stderr)
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else:
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stderr = None
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joinall(greenlets)
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if self.stdout:
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self.stdout.close()
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if self.stderr:
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self.stderr.close()
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self.wait()
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return (None if stdout is None else stdout.value or '',
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None if stderr is None else stderr.value or '')
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def poll(self):
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return self._internal_poll()
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if mswindows:
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#
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# Windows methods
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#
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def _get_handles(self, stdin, stdout, stderr):
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"""Construct and return tuple with IO objects:
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p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite
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"""
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if stdin is None and stdout is None and stderr is None:
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return (None, None, None, None, None, None)
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p2cread, p2cwrite = None, None
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c2pread, c2pwrite = None, None
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errread, errwrite = None, None
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if stdin is None:
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p2cread = GetStdHandle(STD_INPUT_HANDLE)
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if p2cread is None:
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p2cread, _ = CreatePipe(None, 0)
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elif stdin == PIPE:
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p2cread, p2cwrite = CreatePipe(None, 0)
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elif isinstance(stdin, int):
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p2cread = msvcrt.get_osfhandle(stdin)
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else:
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# Assuming file-like object
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p2cread = msvcrt.get_osfhandle(stdin.fileno())
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p2cread = self._make_inheritable(p2cread)
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if stdout is None:
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c2pwrite = GetStdHandle(STD_OUTPUT_HANDLE)
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if c2pwrite is None:
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_, c2pwrite = CreatePipe(None, 0)
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elif stdout == PIPE:
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c2pread, c2pwrite = CreatePipe(None, 0)
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elif isinstance(stdout, int):
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c2pwrite = msvcrt.get_osfhandle(stdout)
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else:
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# Assuming file-like object
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c2pwrite = msvcrt.get_osfhandle(stdout.fileno())
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c2pwrite = self._make_inheritable(c2pwrite)
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if stderr is None:
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errwrite = GetStdHandle(STD_ERROR_HANDLE)
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if errwrite is None:
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_, errwrite = CreatePipe(None, 0)
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elif stderr == PIPE:
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errread, errwrite = CreatePipe(None, 0)
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elif stderr == STDOUT:
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errwrite = c2pwrite
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elif isinstance(stderr, int):
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errwrite = msvcrt.get_osfhandle(stderr)
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else:
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# Assuming file-like object
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errwrite = msvcrt.get_osfhandle(stderr.fileno())
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errwrite = self._make_inheritable(errwrite)
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return (p2cread, p2cwrite,
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c2pread, c2pwrite,
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errread, errwrite)
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def _make_inheritable(self, handle):
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"""Return a duplicate of handle, which is inheritable"""
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return DuplicateHandle(GetCurrentProcess(),
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handle, GetCurrentProcess(), 0, 1,
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DUPLICATE_SAME_ACCESS)
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def _find_w9xpopen(self):
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"""Find and return absolut path to w9xpopen.exe"""
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w9xpopen = os.path.join(os.path.dirname(GetModuleFileName(0)),
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"w9xpopen.exe")
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if not os.path.exists(w9xpopen):
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# Eeek - file-not-found - possibly an embedding
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# situation - see if we can locate it in sys.exec_prefix
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w9xpopen = os.path.join(os.path.dirname(sys.exec_prefix),
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"w9xpopen.exe")
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if not os.path.exists(w9xpopen):
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raise RuntimeError("Cannot locate w9xpopen.exe, which is "
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"needed for Popen to work with your "
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"shell or platform.")
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return w9xpopen
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def _execute_child(self, args, executable, preexec_fn, close_fds,
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cwd, env, universal_newlines,
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startupinfo, creationflags, shell,
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p2cread, p2cwrite,
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c2pread, c2pwrite,
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errread, errwrite):
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"""Execute program (MS Windows version)"""
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if not isinstance(args, types.StringTypes):
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args = list2cmdline(args)
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# Process startup details
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if startupinfo is None:
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startupinfo = STARTUPINFO()
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if None not in (p2cread, c2pwrite, errwrite):
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startupinfo.dwFlags |= STARTF_USESTDHANDLES
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startupinfo.hStdInput = p2cread
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startupinfo.hStdOutput = c2pwrite
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startupinfo.hStdError = errwrite
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if shell:
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startupinfo.dwFlags |= STARTF_USESHOWWINDOW
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startupinfo.wShowWindow = SW_HIDE
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comspec = os.environ.get("COMSPEC", "cmd.exe")
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args = '{} /c "{}"'.format(comspec, args)
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if GetVersion() >= 0x80000000 or os.path.basename(comspec).lower() == "command.com":
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# Win9x, or using command.com on NT. We need to
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# use the w9xpopen intermediate program. For more
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# information, see KB Q150956
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# (http://web.archive.org/web/20011105084002/http://support.microsoft.com/support/kb/articles/Q150/9/56.asp)
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w9xpopen = self._find_w9xpopen()
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args = '"%s" %s' % (w9xpopen, args)
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# Not passing CREATE_NEW_CONSOLE has been known to
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# cause random failures on win9x. Specifically a
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# dialog: "Your program accessed mem currently in
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# use at xxx" and a hopeful warning about the
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# stability of your system. Cost is Ctrl+C wont
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# kill children.
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creationflags |= CREATE_NEW_CONSOLE
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# Start the process
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try:
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hp, ht, pid, tid = CreateProcess(executable, args,
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# no special security
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None, None,
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int(not close_fds),
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creationflags,
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env,
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cwd,
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startupinfo)
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except pywintypes.error, e:
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# Translate pywintypes.error to WindowsError, which is
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# a subclass of OSError. FIXME: We should really
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# translate errno using _sys_errlist (or similar), but
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# how can this be done from Python?
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raise WindowsError(*e.args)
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finally:
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# Child is launched. Close the parent's copy of those pipe
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# handles that only the child should have open. You need
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# to make sure that no handles to the write end of the
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# output pipe are maintained in this process or else the
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# pipe will not close when the child process exits and the
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# ReadFile will hang.
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if p2cread is not None:
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p2cread.Close()
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if c2pwrite is not None:
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c2pwrite.Close()
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if errwrite is not None:
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errwrite.Close()
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# Retain the process handle, but close the thread handle
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self._handle = hp
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self.pid = pid
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ht.Close()
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def _internal_poll(self):
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"""Check if child process has terminated. Returns returncode
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attribute.
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"""
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if self.returncode is None:
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if WaitForSingleObject(self._handle, 0) == WAIT_OBJECT_0:
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self.returncode = GetExitCodeProcess(self._handle)
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self.result.set(self.returncode)
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return self.returncode
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def rawlink(self, callback):
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if not self.result.ready() and not self._waiting:
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self._waiting = True
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Greenlet.spawn(self._wait)
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self.result.rawlink(linkproxy(callback, self))
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# XXX unlink
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def _blocking_wait(self):
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WaitForSingleObject(self._handle, INFINITE)
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self.returncode = GetExitCodeProcess(self._handle)
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return self.returncode
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def _wait(self):
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self.threadpool.spawn(self._blocking_wait).rawlink(self.result)
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def wait(self, timeout=None):
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"""Wait for child process to terminate. Returns returncode
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attribute."""
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if self.returncode is None:
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if not self._waiting:
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self._waiting = True
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self._wait()
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return self.result.wait(timeout=timeout)
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def send_signal(self, sig):
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"""Send a signal to the process
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"""
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if sig == signal.SIGTERM:
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self.terminate()
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elif sig == signal.CTRL_C_EVENT:
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os.kill(self.pid, signal.CTRL_C_EVENT)
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elif sig == signal.CTRL_BREAK_EVENT:
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os.kill(self.pid, signal.CTRL_BREAK_EVENT)
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else:
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raise ValueError("Unsupported signal: {}".format(sig))
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def terminate(self):
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"""Terminates the process
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"""
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|
TerminateProcess(self._handle, 1)
|
|
|
|
kill = terminate
|
|
|
|
else:
|
|
#
|
|
# POSIX methods
|
|
#
|
|
|
|
def rawlink(self, callback):
|
|
self.result.rawlink(linkproxy(callback, self))
|
|
# XXX unlink
|
|
|
|
def _get_handles(self, stdin, stdout, stderr):
|
|
"""Construct and return tuple with IO objects:
|
|
p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite
|
|
"""
|
|
p2cread, p2cwrite = None, None
|
|
c2pread, c2pwrite = None, None
|
|
errread, errwrite = None, None
|
|
|
|
if stdin is None:
|
|
pass
|
|
elif stdin == PIPE:
|
|
p2cread, p2cwrite = self.pipe_cloexec()
|
|
elif isinstance(stdin, int):
|
|
p2cread = stdin
|
|
else:
|
|
# Assuming file-like object
|
|
p2cread = stdin.fileno()
|
|
|
|
if stdout is None:
|
|
pass
|
|
elif stdout == PIPE:
|
|
c2pread, c2pwrite = self.pipe_cloexec()
|
|
elif isinstance(stdout, int):
|
|
c2pwrite = stdout
|
|
else:
|
|
# Assuming file-like object
|
|
c2pwrite = stdout.fileno()
|
|
|
|
if stderr is None:
|
|
pass
|
|
elif stderr == PIPE:
|
|
errread, errwrite = self.pipe_cloexec()
|
|
elif stderr == STDOUT:
|
|
errwrite = c2pwrite
|
|
elif isinstance(stderr, int):
|
|
errwrite = stderr
|
|
else:
|
|
# Assuming file-like object
|
|
errwrite = stderr.fileno()
|
|
|
|
return (p2cread, p2cwrite,
|
|
c2pread, c2pwrite,
|
|
errread, errwrite)
|
|
|
|
def _set_cloexec_flag(self, fd, cloexec=True):
|
|
try:
|
|
cloexec_flag = fcntl.FD_CLOEXEC
|
|
except AttributeError:
|
|
cloexec_flag = 1
|
|
|
|
old = fcntl.fcntl(fd, fcntl.F_GETFD)
|
|
if cloexec:
|
|
fcntl.fcntl(fd, fcntl.F_SETFD, old | cloexec_flag)
|
|
else:
|
|
fcntl.fcntl(fd, fcntl.F_SETFD, old & ~cloexec_flag)
|
|
|
|
def _remove_nonblock_flag(self, fd):
|
|
flags = fcntl.fcntl(fd, fcntl.F_GETFL) & (~os.O_NONBLOCK)
|
|
fcntl.fcntl(fd, fcntl.F_SETFL, flags)
|
|
|
|
def pipe_cloexec(self):
|
|
"""Create a pipe with FDs set CLOEXEC."""
|
|
# Pipes' FDs are set CLOEXEC by default because we don't want them
|
|
# to be inherited by other subprocesses: the CLOEXEC flag is removed
|
|
# from the child's FDs by _dup2(), between fork() and exec().
|
|
# This is not atomic: we would need the pipe2() syscall for that.
|
|
r, w = os.pipe()
|
|
self._set_cloexec_flag(r)
|
|
self._set_cloexec_flag(w)
|
|
return r, w
|
|
|
|
def _close_fds(self, but):
|
|
if hasattr(os, 'closerange'):
|
|
os.closerange(3, but)
|
|
os.closerange(but + 1, MAXFD)
|
|
else:
|
|
for i in xrange(3, MAXFD):
|
|
if i == but:
|
|
continue
|
|
try:
|
|
os.close(i)
|
|
except:
|
|
pass
|
|
|
|
def _execute_child(self, args, executable, preexec_fn, close_fds,
|
|
cwd, env, universal_newlines,
|
|
startupinfo, creationflags, shell,
|
|
p2cread, p2cwrite,
|
|
c2pread, c2pwrite,
|
|
errread, errwrite):
|
|
"""Execute program (POSIX version)"""
|
|
|
|
if isinstance(args, types.StringTypes):
|
|
args = [args]
|
|
else:
|
|
args = list(args)
|
|
|
|
if shell:
|
|
args = ["/bin/sh", "-c"] + args
|
|
if executable:
|
|
args[0] = executable
|
|
|
|
if executable is None:
|
|
executable = args[0]
|
|
|
|
self._loop.install_sigchld()
|
|
|
|
# For transferring possible exec failure from child to parent
|
|
# The first char specifies the exception type: 0 means
|
|
# OSError, 1 means some other error.
|
|
errpipe_read, errpipe_write = self.pipe_cloexec()
|
|
try:
|
|
try:
|
|
gc_was_enabled = gc.isenabled()
|
|
# Disable gc to avoid bug where gc -> file_dealloc ->
|
|
# write to stderr -> hang. http://bugs.python.org/issue1336
|
|
gc.disable()
|
|
try:
|
|
self.pid = fork()
|
|
except:
|
|
if gc_was_enabled:
|
|
gc.enable()
|
|
raise
|
|
if self.pid == 0:
|
|
# Child
|
|
try:
|
|
# Close parent's pipe ends
|
|
if p2cwrite is not None:
|
|
os.close(p2cwrite)
|
|
if c2pread is not None:
|
|
os.close(c2pread)
|
|
if errread is not None:
|
|
os.close(errread)
|
|
os.close(errpipe_read)
|
|
|
|
# When duping fds, if there arises a situation
|
|
# where one of the fds is either 0, 1 or 2, it
|
|
# is possible that it is overwritten (#12607).
|
|
if c2pwrite == 0:
|
|
c2pwrite = os.dup(c2pwrite)
|
|
if errwrite == 0 or errwrite == 1:
|
|
errwrite = os.dup(errwrite)
|
|
|
|
# Dup fds for child
|
|
def _dup2(a, b):
|
|
# dup2() removes the CLOEXEC flag but
|
|
# we must do it ourselves if dup2()
|
|
# would be a no-op (issue #10806).
|
|
if a == b:
|
|
self._set_cloexec_flag(a, False)
|
|
elif a is not None:
|
|
os.dup2(a, b)
|
|
self._remove_nonblock_flag(b)
|
|
_dup2(p2cread, 0)
|
|
_dup2(c2pwrite, 1)
|
|
_dup2(errwrite, 2)
|
|
|
|
# Close pipe fds. Make sure we don't close the
|
|
# same fd more than once, or standard fds.
|
|
closed = set([None])
|
|
for fd in [p2cread, c2pwrite, errwrite]:
|
|
if fd not in closed and fd > 2:
|
|
os.close(fd)
|
|
closed.add(fd)
|
|
|
|
# Close all other fds, if asked for
|
|
if close_fds:
|
|
self._close_fds(but=errpipe_write)
|
|
|
|
if cwd is not None:
|
|
os.chdir(cwd)
|
|
|
|
if preexec_fn:
|
|
preexec_fn()
|
|
|
|
if env is None:
|
|
os.execvp(executable, args)
|
|
else:
|
|
os.execvpe(executable, args, env)
|
|
|
|
except:
|
|
exc_type, exc_value, tb = sys.exc_info()
|
|
# Save the traceback and attach it to the exception object
|
|
exc_lines = traceback.format_exception(exc_type,
|
|
exc_value,
|
|
tb)
|
|
exc_value.child_traceback = ''.join(exc_lines)
|
|
os.write(errpipe_write, pickle.dumps(exc_value))
|
|
|
|
finally:
|
|
# Make sure that the process exits no matter what.
|
|
# The return code does not matter much as it won't be
|
|
# reported to the application
|
|
os._exit(1)
|
|
|
|
# Parent
|
|
self._watcher = self._loop.child(self.pid)
|
|
self._watcher.start(self._on_child, self._watcher)
|
|
|
|
if gc_was_enabled:
|
|
gc.enable()
|
|
finally:
|
|
# be sure the FD is closed no matter what
|
|
os.close(errpipe_write)
|
|
|
|
if p2cread is not None and p2cwrite is not None:
|
|
os.close(p2cread)
|
|
if c2pwrite is not None and c2pread is not None:
|
|
os.close(c2pwrite)
|
|
if errwrite is not None and errread is not None:
|
|
os.close(errwrite)
|
|
|
|
# Wait for exec to fail or succeed; possibly raising exception
|
|
errpipe_read = FileObject(errpipe_read, 'rb')
|
|
data = errpipe_read.read()
|
|
finally:
|
|
if hasattr(errpipe_read, 'close'):
|
|
errpipe_read.close()
|
|
else:
|
|
os.close(errpipe_read)
|
|
|
|
if data != "":
|
|
self.wait()
|
|
child_exception = pickle.loads(data)
|
|
for fd in (p2cwrite, c2pread, errread):
|
|
if fd is not None:
|
|
os.close(fd)
|
|
raise child_exception
|
|
|
|
def _handle_exitstatus(self, sts):
|
|
if os.WIFSIGNALED(sts):
|
|
self.returncode = -os.WTERMSIG(sts)
|
|
elif os.WIFEXITED(sts):
|
|
self.returncode = os.WEXITSTATUS(sts)
|
|
else:
|
|
# Should never happen
|
|
raise RuntimeError("Unknown child exit status!")
|
|
|
|
def _internal_poll(self):
|
|
"""Check if child process has terminated. Returns returncode
|
|
attribute.
|
|
"""
|
|
if self.returncode is None:
|
|
if get_hub() is not getcurrent():
|
|
sig_pending = getattr(self._loop, 'sig_pending', True)
|
|
if sig_pending:
|
|
sleep(0.00001)
|
|
return self.returncode
|
|
|
|
def wait(self, timeout=None):
|
|
"""Wait for child process to terminate. Returns returncode
|
|
attribute."""
|
|
return self.result.wait(timeout=timeout)
|
|
|
|
def send_signal(self, sig):
|
|
"""Send a signal to the process
|
|
"""
|
|
os.kill(self.pid, sig)
|
|
|
|
def terminate(self):
|
|
"""Terminate the process with SIGTERM
|
|
"""
|
|
self.send_signal(signal.SIGTERM)
|
|
|
|
def kill(self):
|
|
"""Kill the process with SIGKILL
|
|
"""
|
|
self.send_signal(signal.SIGKILL)
|
|
|
|
|
|
def write_and_close(fobj, data):
|
|
try:
|
|
if data:
|
|
fobj.write(data)
|
|
except (OSError, IOError), ex:
|
|
if ex.errno != errno.EPIPE and ex.errno != errno.EINVAL:
|
|
raise
|
|
finally:
|
|
try:
|
|
fobj.close()
|
|
except EnvironmentError:
|
|
pass
|