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make SIGUSR1 and SIGINFO trigger printing of info

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Directory and url/port information for the notebook server is now
printed when it receives one of these signals. SIGINFO is available only
on BSD-based systems, and is triggered via Ctrl-T.
This commit is contained in:
Paul Ivanov 2013-03-18 18:09:28 -07:00
parent 218087104d
commit fd467e75b6
1 changed files with 7 additions and 0 deletions
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7
IPython/frontend/html/notebook/notebookapp.py
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@ -550,6 +550,10 @@ class NotebookApp(BaseIPythonApplication):
# but it will work
signal.signal(signal.SIGINT, self._handle_sigint)
signal.signal(signal.SIGTERM, self._signal_stop)
signal.signal(signal.SIGUSR1, self._signal_info)
if hasattr(signal, 'SIGINFO'):
# only on BSD-based systems
signal.signal(signal.SIGINFO, self._signal_info)
def _handle_sigint(self, sig, frame):
"""SIGINT handler spawns confirmation dialog"""
@ -599,6 +603,9 @@ class NotebookApp(BaseIPythonApplication):
def _signal_stop(self, sig, frame):
self.log.critical("received signal %s, stopping", sig)
ioloop.IOLoop.instance().stop()
def _signal_info(self, sig, frame):
self.print_notebook_info()
@catch_config_error
def initialize(self, argv=None):