ó ¨œž[c@`s”ddlmZmZmZddlZddlZddlmZddlm Z ddl m Z ddl m Z mZde fd„ƒYZdS( i(tabsolute_importtdivisiontprint_functionN(tFuture(tgen(tIOLoop(tResolvert is_valid_ipt CaresResolvercB`s>eZdZd„Zd„Zd„Zejdd„ƒZRS(s`Name resolver based on the c-ares library. This is a non-blocking and non-threaded resolver. It may not produce the same results as the system resolver, but can be used for non-blocking resolution when threads cannot be used. c-ares fails to resolve some names when ``family`` is ``AF_UNSPEC``, so it is only recommended for use in ``AF_INET`` (i.e. IPv4). This is the default for ``tornado.simple_httpclient``, but other libraries may default to ``AF_UNSPEC``. .. versionchanged:: 5.0 The ``io_loop`` argument (deprecated since version 4.1) has been removed. cC`s4tjƒ|_tjd|jƒ|_i|_dS(Nt sock_state_cb(Rtcurrenttio_looptpycarestChannelt_sock_state_cbtchanneltfds(tself((s=lib/python2.7/site-packages/tornado/platform/caresresolver.pyt initializescC`s§|rtjnd|r!tjndB}|sK|jj|ƒ|j|=nX||jkr}|jj||ƒ||j||}n|jj||ƒdS(N(R tARES_SOCKET_BADRRRRt process_fd(RRteventstread_fdtwrite_fd((s=lib/python2.7/site-packages/tornado/platform/caresresolver.pyR,s      ic #`s4t|ƒr|g}nltƒ‰|jj||‡fd†ƒˆV\}}|r{td|tjj|ƒ|fƒ‚n|j}g}x”|D]Œ}d|kr¯t j } n!d|krÇt j } n t j } |t j kr|| krtd|| fƒ‚n|j | ||ffƒq‘Wtj|ƒ‚dS(Nc`sˆj||fƒS(N(t set_result(tresultterror(tfut(s=lib/python2.7/site-packages/tornado/platform/caresresolver.pyt=ss/C-Ares returned error %s: %s while resolving %st.t:s%Requested socket family %d but got %d(RRRt gethostbynametIOErrorR terrnotstrerrort addressestsockettAF_INETtAF_INET6t AF_UNSPECtappendRtReturn( RthosttporttfamilyR-R#R$taddrinfotaddresstaddress_family((R%s=lib/python2.7/site-packages/tornado/platform/caresresolver.pytresolve5s,    "       ( t__name__t __module__t__doc__RRRRt coroutineR:(((s=lib/python2.7/site-packages/tornado/platform/caresresolver.pyR s   (t __future__RRRR R.ttornado.concurrentRttornadoRttornado.ioloopRttornado.netutilRRR(((s=lib/python2.7/site-packages/tornado/platform/caresresolver.pyts