def cancel(self):
"""Cancel scheduled callback.
This way the schedule_sec and schedule_msec repetition can be canceled.
"""
source_remove(self._id)
self._id = 0
def _sigchld_handler(cls, num=None, frame=None):
"""Signal handler used with watchProcess"""
# Check whether anything in the list of processes being watched has
# exited. We don't want to call waitpid(-1), since that would break
# anything else using wait/waitpid (like the subprocess module).
exited_pids = []
exit_statuses = []
for child_pid in cls._forever_pids:
try:
pid_result, status = os.waitpid(child_pid, os.WNOHANG)
except ChildProcessError:
continue
if pid_result:
proc_name = cls._forever_pids[child_pid][0]
exited_pids.append(child_pid)
# Convert the wait-encoded status to the format used by subprocess
if os.WIFEXITED(status):
sub_status = os.WEXITSTATUS(status)
else:
# subprocess uses negative return codes to indicate signal exit
sub_status = -os.WTERMSIG(status)
exit_statuses.append((proc_name, sub_status))
for child_pid in exited_pids:
if cls._forever_pids[child_pid][1]:
source_remove(cls._forever_pids[child_pid][1])
del cls._forever_pids[child_pid]
if exit_statuses:
cls._raise_exit_error(exit_statuses)
def cancel(self):
"""Cancel scheduled callback.
This way the schedule_sec and schedule_msec repetition can be canceled.
"""
source_remove(self._id)
self._id = 0
def unwatch_process(cls, proc):
"""Unwatch a process watched by watchProcess.
:param proc: The Popen object for the process.
"""
if cls._forever_pids[proc.pid][1]:
source_remove(cls._forever_pids[proc.pid][1])
del cls._forever_pids[proc.pid]
def cancel(self):
"""Cancel watching."""
source_remove(self._id)
self._id = 0
def unwatch_all_processes(cls):
"""Clear the watched process list."""
for child_pid in cls._forever_pids:
if cls._forever_pids[child_pid][1]:
source_remove(cls._forever_pids[child_pid][1])
cls._forever_pids = {}