| 161 | stderr_r_ok = True |
| 162 | |
| 163 | class _Proc: |
| 164 | stdin = stdin_file |
| 165 | stdout = stdout_file |
| 166 | stderr = stderr_file |
| 167 | |
| 168 | def __init__(self): |
| 169 | self.pid = child_pid |
| 170 | self.returncode = None |
| 171 | |
| 172 | def _reap(self, status): |
| 173 | if os.WIFEXITED(status): |
| 174 | self.returncode = os.WEXITSTATUS(status) |
| 175 | elif os.WIFSIGNALED(status): |
| 176 | self.returncode = -os.WTERMSIG(status) |
| 177 | else: |
| 178 | self.returncode = -1 |
| 179 | |
| 180 | def poll(self): |
| 181 | if self.returncode is not None: |
| 182 | return self.returncode |
| 183 | try: |
| 184 | rpid, status = os.waitpid(self.pid, os.WNOHANG) |
| 185 | if rpid: |
| 186 | self._reap(status) |
| 187 | except ChildProcessError: |
| 188 | self.returncode = -1 |
| 189 | return self.returncode |
| 190 | |
| 191 | def wait(self, timeout=None): |
| 192 | if self.returncode is not None: |
| 193 | return self.returncode |
| 194 | import gevent as _gevent |
| 195 | deadline = time.monotonic() + timeout if timeout is not None else None |
| 196 | while True: |
| 197 | try: |
| 198 | rpid, status = os.waitpid(self.pid, os.WNOHANG) |
| 199 | except ChildProcessError: |
| 200 | self.returncode = -1 |
| 201 | return self.returncode |
| 202 | if rpid: |
| 203 | self._reap(status) |
| 204 | return self.returncode |
| 205 | if deadline is not None and time.monotonic() >= deadline: |
| 206 | raise subprocess.TimeoutExpired(self.pid, timeout) |
| 207 | _gevent.sleep(0.01) |
| 208 | |
| 209 | def kill(self): |
| 210 | try: |
| 211 | os.kill(self.pid, signal.SIGKILL) |
| 212 | except ProcessLookupError: |
| 213 | pass |
| 214 | |
| 215 | def terminate(self): |
| 216 | try: |
| 217 | os.kill(self.pid, signal.SIGTERM) |
| 218 | except ProcessLookupError: |
| 219 | pass |
| 220 | |