我们从Python开源项目中，提取了以下50个代码示例，用于说明如何使用os.WIFSIGNALED。
def waitfinish(self, waiter=os.waitpid): pid, systemstatus = waiter(self.pid, 0) if systemstatus: if os.WIFSIGNALED(systemstatus): exitstatus = os.WTERMSIG(systemstatus) + 128 else: exitstatus = os.WEXITSTATUS(systemstatus) else: exitstatus = 0 signal = systemstatus & 0x7f if not exitstatus and not signal: retval = self.RETVAL.open('rb') try: retval_data = retval.read() finally: retval.close() retval = marshal.loads(retval_data) else: retval = None stdout = self.STDOUT.read() stderr = self.STDERR.read() self._removetemp() return Result(exitstatus, signal, retval, stdout, stderr)
def poll(self, flag=os.WNOHANG): if self.returncode is None: while True: try: pid, sts = os.waitpid(self.pid, flag) except os.error as e: if e.errno == errno.EINTR: continue # Child process not yet created. See #1731717 # e.errno == errno.ECHILD == 10 return None else: break if pid == self.pid: if os.WIFSIGNALED(sts): self.returncode = -os.WTERMSIG(sts) else: assert os.WIFEXITED(sts) self.returncode = os.WEXITSTATUS(sts) return self.returncode
def wait_child(pid): while True: try: # wait for child process wpid, sts = os.waitpid(pid, 0) except KeyboardInterrupt: # handle exceptions when parent is waiting handle_parent_exit(pid) # if child process stopped if os.WIFSTOPPED(sts): continue # if receive keybord interuption or kill signal elif os.WIFSIGNALED(sts): return sts # seems not work elif os.WIFEXITED(sts): return sts else: raise "Not stopped, signaled or exited???"
def _compute_returncode(self, status): if os.WIFSIGNALED(status): # The child process died because of a signal. return -os.WTERMSIG(status) elif os.WIFEXITED(status): # The child process exited (e.g sys.exit()). return os.WEXITSTATUS(status) else: # The child exited, but we don't understand its status. # This shouldn't happen, but if it does, let's just # return that status; perhaps that helps debug it. return status # # ?????: #
def wait_on_children(self): """Wait on children exit.""" while self.running: try: pid, status = os.wait() if os.WIFEXITED(status) or os.WIFSIGNALED(status): self._remove_children(pid) self._verify_and_respawn_children(pid, status) except OSError as err: if err.errno not in (errno.EINTR, errno.ECHILD): raise except KeyboardInterrupt: LOG.info(_LI('Caught keyboard interrupt. Exiting.')) os.killpg(0, signal.SIGTERM) break except exception.SIGHUPInterrupt: self.reload() continue eventlet.greenio.shutdown_safe(self.sock) self.sock.close() LOG.debug('Exited')
def platformProcessEvent(self, event): pid, status = event if os.WIFEXITED(status): tid = self.getMeta("ThreadId", -1) exitcode = os.WEXITSTATUS(status) if tid != self.getPid(): # Set the selected thread ID to the pid cause # the old one's invalid if tid in self.pthreads: self.pthreads.remove(tid) self.setMeta("ThreadId", self.getPid()) self._fireExitThread(tid, exitcode) else: self._fireExit(exitcode) elif os.WIFSIGNALED(status): self._fireExit(os.WTERMSIG(status)) elif os.WIFSTOPPED(status): sig = os.WSTOPSIG(status) self.handlePosixSignal(sig) else: print("OMG WTF JUST HAPPENED??!?11/!?1?>!")
def poll(self, flag=os.WNOHANG): if self.returncode is None: while True: try: pid, sts = os.waitpid(self.pid, flag) except OSError as e: if e.errno == errno.EINTR: continue # Child process not yet created. See #1731717 # e.errno == errno.ECHILD == 10 return None else: break if pid == self.pid: if os.WIFSIGNALED(sts): self.returncode = -os.WTERMSIG(sts) else: assert os.WIFEXITED(sts) self.returncode = os.WEXITSTATUS(sts) return self.returncode
def exitStatus(self, code): """ Construct a status from the given exit code. @type code: L{int} between 0 and 255 inclusive. @param code: The exit status which the code will represent. @rtype: L{int} @return: A status integer for the given exit code. """ # /* Macros for constructing status values. */ # #define __W_EXITCODE(ret, sig) ((ret) << 8 | (sig)) status = (code << 8) | 0 # Sanity check self.assertTrue(os.WIFEXITED(status)) self.assertEqual(os.WEXITSTATUS(status), code) self.assertFalse(os.WIFSIGNALED(status)) return status
def signalStatus(self, signal): """ Construct a status from the given signal. @type signal: L{int} between 0 and 255 inclusive. @param signal: The signal number which the status will represent. @rtype: L{int} @return: A status integer for the given signal. """ # /* If WIFSIGNALED(STATUS), the terminating signal. */ # #define __WTERMSIG(status) ((status) & 0x7f) # /* Nonzero if STATUS indicates termination by a signal. */ # #define __WIFSIGNALED(status) \ # (((signed char) (((status) & 0x7f) + 1) >> 1) > 0) status = signal # Sanity check self.assertTrue(os.WIFSIGNALED(status)) self.assertEqual(os.WTERMSIG(status), signal) self.assertFalse(os.WIFEXITED(status)) return status
def print_exit_status(process, printer): exit_signal = None exit_code = None core_dumped = False try: wait_result = os.waitpid(process.pid, 0)[1] if os.WIFSIGNALED(wait_result): exit_signal = os.WTERMSIG(wait_result) exit_code = 128 + exit_signal elif os.WIFEXITED(wait_result): exit_code = os.WEXITSTATUS(wait_result) core_dumped = os.WCOREDUMP(wait_result) except ChildProcessError: # Must be Windows; waiting for a terminated process doesn't work (?) exit_code = process.returncode if exit_signal is not None: signal_name = signal_names.get(exit_signal, 'unknown signal') printer.print( Fore.RED + 'Terminated by %s (%i)' % (signal_name, exit_signal) + Style.RESET_ALL) exit_code = 128 + exit_signal if core_dumped: printer.print(Fore.RED + 'Core dumped' + Style.RESET_ALL) return exit_code
def wait_on_children(self): while self.running: try: pid, status = os.wait() if os.WIFEXITED(status) or os.WIFSIGNALED(status): self._remove_children(pid) self._verify_and_respawn_children(pid, status) except OSError as err: if err.errno not in (errno.EINTR, errno.ECHILD): raise except KeyboardInterrupt: LOG.info('Caught keyboard interrupt. Exiting.') break except glare_exc.SIGHUPInterrupt: self.reload() continue eventlet.greenio.shutdown_safe(self.sock) self.sock.close() LOG.debug('Exited')
def _handle_exitstatus(self, sts, _WIFSIGNALED=os.WIFSIGNALED, _WTERMSIG=os.WTERMSIG, _WIFEXITED=os.WIFEXITED, _WEXITSTATUS=os.WEXITSTATUS): # This method is called (indirectly) by __del__, so it cannot # refer to anything outside of its local scope.""" if _WIFSIGNALED(sts): self.returncode = -_WTERMSIG(sts) elif _WIFEXITED(sts): self.returncode = _WEXITSTATUS(sts) else: # Should never happen raise RuntimeError("Unknown child exit status!")
def poll(self, flag=os.WNOHANG): if self.returncode is None: try: pid, sts = os.waitpid(self.pid, flag) except os.error: # Child process not yet created. See #1731717 # e.errno == errno.ECHILD == 10 return None if pid == self.pid: if os.WIFSIGNALED(sts): self.returncode = -os.WTERMSIG(sts) else: assert os.WIFEXITED(sts) self.returncode = os.WEXITSTATUS(sts) return self.returncode
def _set_returncode(self, status): if os.WIFSIGNALED(status): self.returncode = -os.WTERMSIG(status) else: assert os.WIFEXITED(status) self.returncode = os.WEXITSTATUS(status) if self._exit_callback: callback = self._exit_callback self._exit_callback = None callback(self.returncode)
def _wait_child(self): try: # Don't block if no child processes have exited pid, status = os.waitpid(0, os.WNOHANG) if not pid: return None except OSError as exc: if exc.errno not in (errno.EINTR, errno.ECHILD): raise return None if os.WIFSIGNALED(status): sig = os.WTERMSIG(status) LOG.info(_LI('Child %(pid)d killed by signal %(sig)d'), dict(pid=pid, sig=sig)) else: code = os.WEXITSTATUS(status) LOG.info(_LI('Child %(pid)s exited with status %(code)d'), dict(pid=pid, code=code)) if pid not in self.children: LOG.warning(_LW('pid %d not in child list'), pid) return None wrap = self.children.pop(pid) wrap.children.remove(pid) return wrap
def _handle_exitstatus(self, sts, _WIFSIGNALED=os.WIFSIGNALED, _WTERMSIG=os.WTERMSIG, _WIFEXITED=os.WIFEXITED, _WEXITSTATUS=os.WEXITSTATUS): # This method is called (indirectly) by __del__, so it cannot # refer to anything outside of its local scope. if _WIFSIGNALED(sts): self.returncode = -_WTERMSIG(sts) elif _WIFEXITED(sts): self.returncode = _WEXITSTATUS(sts) else: # Should never happen raise RuntimeError("Unknown child exit status!")
def _wait_service(self): """Return the last died service or None""" try: # Don't block if no child processes have exited pid, status = os.waitpid(0, os.WNOHANG) if not pid: return None except OSError as exc: if exc.errno not in (errno.EINTR, errno.ECHILD): raise return None if os.WIFSIGNALED(status): sig = SIGNAL_TO_NAME.get(os.WTERMSIG(status)) LOG.info('Child %(pid)d killed by signal %(sig)s', dict(pid=pid, sig=sig)) else: code = os.WEXITSTATUS(status) LOG.info('Child %(pid)d exited with status %(code)d', dict(pid=pid, code=code)) for conf in self._running_services: if pid in self._running_services[conf]: return conf, self._running_services[conf].pop(pid) LOG.error('pid %d not in service list', pid)
def _on_sigchld(self, watcher): """Callback of libev child watcher. Called when libev event loop catches corresponding SIGCHLD signal. """ watcher.stop() # Status evaluation copied from `multiprocessing.forking` in Py2.7. if os.WIFSIGNALED(watcher.rstatus): self._popen.returncode = -os.WTERMSIG(watcher.rstatus) else: assert os.WIFEXITED(watcher.rstatus) self._popen.returncode = os.WEXITSTATUS(watcher.rstatus) self._returnevent.set() log.debug("SIGCHLD watcher callback for %s invoked. Exitcode " "stored: %s", self.pid, self._popen.returncode)
def wait(self): '''This waits until the child exits. This is a blocking call. This will not read any data from the child, so this will block forever if the child has unread output and has terminated. In other words, the child may have printed output then called exit(), but, the child is technically still alive until its output is read by the parent. ''' if self.isalive(): pid, status = os.waitpid(self.pid, 0) else: return self.exitstatus self.exitstatus = os.WEXITSTATUS(status) if os.WIFEXITED(status): self.status = status self.exitstatus = os.WEXITSTATUS(status) self.signalstatus = None self.terminated = True elif os.WIFSIGNALED(status): self.status = status self.exitstatus = None self.signalstatus = os.WTERMSIG(status) self.terminated = True elif os.WIFSTOPPED(status): # pragma: no cover # You can't call wait() on a child process in the stopped state. raise PtyProcessError('Called wait() on a stopped child ' + 'process. This is not supported. Is some other ' + 'process attempting job control with our child pid?') return self.exitstatus
def _waitWithTimeout(process, args, timeout, nonZeroIsFatal=True): def _waitpid(pid): while True: try: return os.waitpid(pid, os.WNOHANG) except OSError, e: if e.errno == errno.EINTR: continue raise def _returncode(status): if os.WIFSIGNALED(status): return -os.WTERMSIG(status) elif os.WIFEXITED(status): return os.WEXITSTATUS(status) else: # Should never happen raise RuntimeError("Unknown child exit status!") end = time.time() + timeout delay = 0.0005 while True: (pid, status) = _waitpid(process.pid) if pid == process.pid: return _returncode(status) remaining = end - time.time() if remaining <= 0: msg = 'Process timed out after {0} seconds: {1}'.format(timeout, ' '.join(args)) if nonZeroIsFatal: abort(msg) else: log(msg) _kill_process(process.pid, signal.SIGKILL) return ERROR_TIMEOUT delay = min(delay * 2, remaining, .05) time.sleep(delay) # Makes the current subprocess accessible to the abort() function # This is a list of tuples of the subprocess.Popen or # multiprocessing.Process object and args.
def _on_child(self, watcher): watcher.stop() status = watcher.rstatus if os.WIFSIGNALED(status): self.returncode = -os.WTERMSIG(status) else: self.returncode = os.WEXITSTATUS(status) self.result.set(self.returncode)
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!")
