except ImportError:
import _thread as thread # py3
from tornado.escape import utf8
from tornado import gen
from tornado.httpclient import AsyncHTTPClient
from tornado.httpserver import HTTPServer
from tornado.ioloop import IOLoop
from tornado.platform.auto import set_close_exec
from tornado.platform.select import SelectIOLoop
from tornado.testing import bind_unused_port
from tornado.test.util import unittest
from tornado.util import import_object
from tornado.web import RequestHandler, Application
skipIfNoTwisted = unittest.skipUnless(have_twisted, "twisted module not present")
skipIfPy26 = unittest.skipIf(sys.version_info < (2, 7), "twisted incompatible with singledispatch in py26")
def save_signal_handlers():
saved = {}
for sig in [signal.SIGINT, signal.SIGTERM, signal.SIGCHLD]:
saved[sig] = signal.getsignal(sig)
if "twisted" in repr(saved):
if not issubclass(IOLoop.configured_class(), TwistedIOLoop):
# when the global ioloop is twisted, we expect the signal
# handlers to be installed. Otherwise, it means we're not
# cleaning up after twisted properly.
raise Exception("twisted signal handlers already installed")
return saved
from tornado.platform.twisted import TornadoReactor
from zope.interface import implementer
have_twisted = True
except ImportError:
have_twisted = False
from tornado.httpclient import AsyncHTTPClient
from tornado.httpserver import HTTPServer
from tornado.ioloop import IOLoop
from tornado.platform.auto import set_close_exec
from tornado.testing import bind_unused_port
from tornado.test.util import unittest
from tornado.util import import_object
from tornado.web import RequestHandler, Application
skipIfNoTwisted = unittest.skipUnless(have_twisted,
"twisted module not present")
def save_signal_handlers():
saved = {}
for sig in [signal.SIGINT, signal.SIGTERM, signal.SIGCHLD]:
saved[sig] = signal.getsignal(sig)
if "twisted" in repr(saved):
raise Exception("twisted signal handlers already installed")
return saved
def restore_signal_handlers(saved):
for sig, handler in saved.iteritems():
signal.signal(sig, handler)
