Here are the examples of the python api twisted.internet.base.ThreadedResolver taken from open source projects. By voting up you can indicate which examples are most useful and appropriate.
5 Examples
0
Source : test_base.py
with MIT License
from autofelix
with MIT License
from autofelix
def test_success(self):
"""
L{ThreadedResolver.getHostByName} returns a L{Deferred} which fires
with the value returned by the call to L{socket.gethostbyname} in the
threadpool of the reactor passed to L{ThreadedResolver.__init__}.
"""
ip = "10.0.0.17"
name = "foo.bar.example.com"
timeout = 30
reactor = FakeReactor()
self.addCleanup(reactor._stop)
lookedUp = []
resolvedTo = []
def fakeGetHostByName(name):
lookedUp.append(name)
return ip
self.patch(socket, 'gethostbyname', fakeGetHostByName)
resolver = ThreadedResolver(reactor)
d = resolver.getHostByName(name, (timeout,))
d.addCallback(resolvedTo.append)
reactor._runThreadCalls()
self.assertEqual(lookedUp, [name])
self.assertEqual(resolvedTo, [ip])
# Make sure that any timeout-related stuff gets cleaned up.
reactor._clock.advance(timeout + 1)
self.assertEqual(reactor._clock.calls, [])
def test_failure(self):
0
Source : test_base.py
with MIT License
from autofelix
with MIT License
from autofelix
def test_failure(self):
"""
L{ThreadedResolver.getHostByName} returns a L{Deferred} which fires a
L{Failure} if the call to L{socket.gethostbyname} raises an exception.
"""
timeout = 30
reactor = FakeReactor()
self.addCleanup(reactor._stop)
def fakeGetHostByName(name):
raise IOError("ENOBUFS (this is a funny joke)")
self.patch(socket, 'gethostbyname', fakeGetHostByName)
failedWith = []
resolver = ThreadedResolver(reactor)
d = resolver.getHostByName("some.name", (timeout,))
self.assertFailure(d, DNSLookupError)
d.addCallback(failedWith.append)
reactor._runThreadCalls()
self.assertEqual(len(failedWith), 1)
# Make sure that any timeout-related stuff gets cleaned up.
reactor._clock.advance(timeout + 1)
self.assertEqual(reactor._clock.calls, [])
def test_timeout(self):
0
Source : test_base.py
with MIT License
from autofelix
with MIT License
from autofelix
def test_timeout(self):
"""
If L{socket.gethostbyname} does not complete before the specified
timeout elapsed, the L{Deferred} returned by
L{ThreadedResolver.getHostByName} fails with L{DNSLookupError}.
"""
timeout = 10
reactor = FakeReactor()
self.addCleanup(reactor._stop)
result = Queue()
def fakeGetHostByName(name):
raise result.get()
self.patch(socket, 'gethostbyname', fakeGetHostByName)
failedWith = []
resolver = ThreadedResolver(reactor)
d = resolver.getHostByName("some.name", (timeout,))
self.assertFailure(d, DNSLookupError)
d.addCallback(failedWith.append)
reactor._clock.advance(timeout - 1)
self.assertEqual(failedWith, [])
reactor._clock.advance(1)
self.assertEqual(len(failedWith), 1)
# Eventually the socket.gethostbyname does finish - in this case, with
# an exception. Nobody cares, though.
result.put(IOError("The I/O was errorful"))
def test_resolverGivenStr(self):
0
Source : client.py
with MIT License
from autofelix
with MIT License
from autofelix
def createResolver(servers=None, resolvconf=None, hosts=None):
"""
Create and return a Resolver.
@type servers: C{list} of C{(str, int)} or L{None}
@param servers: If not L{None}, interpreted as a list of domain name servers
to attempt to use. Each server is a tuple of address in C{str} dotted-quad
form and C{int} port number.
@type resolvconf: C{str} or L{None}
@param resolvconf: If not L{None}, on posix systems will be interpreted as
an alternate resolv.conf to use. Will do nothing on windows systems. If
L{None}, /etc/resolv.conf will be used.
@type hosts: C{str} or L{None}
@param hosts: If not L{None}, an alternate hosts file to use. If L{None}
on posix systems, /etc/hosts will be used. On windows, C:\windows\hosts
will be used.
@rtype: C{IResolver}
"""
if platform.getType() == 'posix':
if resolvconf is None:
resolvconf = b'/etc/resolv.conf'
if hosts is None:
hosts = b'/etc/hosts'
theResolver = Resolver(resolvconf, servers)
hostResolver = hostsModule.Resolver(hosts)
else:
if hosts is None:
hosts = r'c:\windows\hosts'
from twisted.internet import reactor
bootstrap = _ThreadedResolverImpl(reactor)
hostResolver = hostsModule.Resolver(hosts)
theResolver = root.bootstrap(bootstrap, resolverFactory=Resolver)
L = [hostResolver, cache.CacheResolver(), theResolver]
return resolve.ResolverChain(L)
theResolver = None
0
Source : test_base.py
with MIT License
from fbla-competitive-events
with MIT License
from fbla-competitive-events
def test_timeout(self):
"""
If L{socket.gethostbyname} does not complete before the specified
timeout elapsed, the L{Deferred} returned by
L{ThreadedResolver.getHostByBame} fails with L{DNSLookupError}.
"""
timeout = 10
reactor = FakeReactor()
self.addCleanup(reactor._stop)
result = Queue()
def fakeGetHostByName(name):
raise result.get()
self.patch(socket, 'gethostbyname', fakeGetHostByName)
failedWith = []
resolver = ThreadedResolver(reactor)
d = resolver.getHostByName("some.name", (timeout,))
self.assertFailure(d, DNSLookupError)
d.addCallback(failedWith.append)
reactor._clock.advance(timeout - 1)
self.assertEqual(failedWith, [])
reactor._clock.advance(1)
self.assertEqual(len(failedWith), 1)
# Eventually the socket.gethostbyname does finish - in this case, with
# an exception. Nobody cares, though.
result.put(IOError("The I/O was errorful"))
def nothing():