def _open_channel(self, run):
assert self.connection
if not self._is_run_id_tracked(run):
log.warning("Run %s no longer tracked (_open_channel)", run.id)
return
assert self.run_states[run.id].state < RUN_STATE_RUNNING
self.run_states[run.id].state = RUN_STATE_STARTING
chan = ssh.ExecChannel(conn=self.connection)
chan.addOutputCallback(run.write_stdout)
chan.addErrorCallback(run.write_stderr)
chan.addEndCallback(run.done)
chan.command = run.command
chan.start_defer = defer.Deferred()
chan.start_defer.addCallback(self._run_started, run)
chan.start_defer.addErrback(self._run_start_error, run)
chan.exit_defer = defer.Deferred()
chan.exit_defer.addCallback(self._channel_complete, run)
chan.exit_defer.addErrback(self._channel_complete_unknown, run)
twistedutils.defer_timeout(chan.start_defer, RUN_START_TIMEOUT)
self.run_states[run.id].channel = chan
# TODO: I believe this needs to be checking the health of the connection
# before trying to open a new channel. If the connection is gone it
# needs to re-establish, or if the connection is not responding
# we shouldn't create this new channel
self.connection.openChannel(chan)
def _open_channel(self, run):
assert self.connection
assert self.run_states[run.id].state < RUN_STATE_RUNNING
self.run_states[run.id].state = RUN_STATE_STARTING
chan = ssh.ExecChannel(conn=self.connection)
chan.addOutputCallback(self._get_output_callback(run))
chan.addErrorCallback(self._get_error_callback(run))
chan.addEndCallback(self._get_end_callback(run))
chan.command = run.command
chan.start_defer = defer.Deferred()
chan.start_defer.addCallback(self._run_started, run)
chan.start_defer.addErrback(self._run_start_error, run)
chan.exit_defer = defer.Deferred()
chan.exit_defer.addCallback(self._channel_complete, run)
chan.exit_defer.addErrback(self._channel_complete_unknown, run)
chan.start_defer.setTimeout(RUN_START_TIMEOUT)
self.run_states[run.id].channel = chan
self.connection.openChannel(chan)