def _start(self, process):
try:
if process in self._process:
self.logger.debug('process already running', 'process')
return
if process not in self._configuration:
self.logger.debug(
'can not start process, no configuration for it',
'process')
return
# Prevent some weird termcap data to be created at the start of the PIPE
# \x1b[?1034h (no-eol) (esc)
os.environ['TERM'] = 'dumb'
configuration = self._configuration[process]
run = configuration.get('run', '')
if run:
api = configuration.get('encoder', '')
self._encoder[process] = Response.Text(
text_version) if api == 'text' else Response.JSON(
json_version)
self._process[process] = subprocess.Popen(
run,
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
preexec_fn=preexec_helper
# This flags exists for python 2.7.3 in the documentation but on on my MAC
# creationflags=subprocess.CREATE_NEW_PROCESS_GROUP
)
self._update_fds()
fcntl.fcntl(self._process[process].stdout.fileno(),
fcntl.F_SETFL, os.O_NONBLOCK)
self.logger.debug('forked process %s' % process, 'process')
around_now = int(time.time()) & self.respawn_timemask
if process in self._respawning:
if around_now in self._respawning[process]:
self._respawning[process][around_now] += 1
# we are respawning too fast
if self._respawning[process][
around_now] > self.respawn_number:
self.logger.critical(
'Too many death for %s (%d) terminating program'
% (process, self.respawn_number), 'process')
raise ProcessError()
else:
# reset long time since last respawn
self._respawning[process] = {around_now: 1}
else:
# record respawing
self._respawning[process] = {around_now: 1}
except (subprocess.CalledProcessError, OSError, ValueError) as exc:
self._broken.append(process)
self.logger.debug('could not start process %s' % process,
'process')
self.logger.debug('reason: %s' % str(exc), 'process')
def _start(self, process):
events = self.reactor.configuration.processes[process]
for event, present in events.iteritems():
if event in ('run', 'encoder'):
continue
if present:
self._events.setdefault(process, []).append(event)
try:
if process in self._process:
self.logger.processes("process already running")
return
if process not in self.reactor.configuration.processes:
self.logger.processes(
"Can not start process, no configuration for it (anymore ?)"
)
return
# Prevent some weird termcap data to be created at the start of the PIPE
# \x1b[?1034h (no-eol) (esc)
os.environ['TERM'] = 'dumb'
run = self.reactor.configuration.processes[process].get('run', '')
if run:
api = self.reactor.configuration.processes[process]['encoder']
self._encoder[process] = Response.Text(
text_version) if api == 'text' else Response.JSON(
json_version, self.highres)
self._process[process] = subprocess.Popen(
run,
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
preexec_fn=preexec_helper
# This flags exists for python 2.7.3 in the documentation but on on my MAC
# creationflags=subprocess.CREATE_NEW_PROCESS_GROUP
)
fcntl.fcntl(self._process[process].stdout.fileno(),
fcntl.F_SETFL, os.O_NONBLOCK)
self.logger.processes("Forked process %s" % process)
around_now = int(time.time()) & self.respawn_timemask
if process in self._respawning:
if around_now in self._respawning[process]:
self._respawning[process][around_now] += 1
# we are respawning too fast
if self._respawning[process][
around_now] > self.respawn_number:
self.logger.processes(
"Too many respawn for %s (%d) terminating program"
% (process, self.respawn_number), 'critical')
raise ProcessError()
else:
# reset long time since last respawn
self._respawning[process] = {around_now: 1}
else:
# record respawing
self._respawning[process] = {around_now: 1}
neighbor = self.reactor.configuration.processes[process][
'neighbor']
self._neighbor_process.setdefault(neighbor, []).append(process)
except (subprocess.CalledProcessError, OSError, ValueError), exc:
self._broken.append(process)
self.logger.processes("Could not start process %s" % process)
self.logger.processes("reason: %s" % str(exc))
