PNG  IHDRxsBIT|d pHYs+tEXtSoftwarewww.inkscape.org<,tEXtComment File Manager

File Manager

Path: /opt/alt/python311/lib64/python3.11/site-packages/grpc/beta/

Viewing File: _server_adaptations.py

# Copyright 2016 gRPC authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Translates gRPC's server-side API into gRPC's server-side Beta API."""

import collections
import threading

import grpc
from grpc import _common
from grpc.beta import _metadata
from grpc.beta import interfaces
from grpc.framework.common import cardinality
from grpc.framework.common import style
from grpc.framework.foundation import abandonment
from grpc.framework.foundation import logging_pool
from grpc.framework.foundation import stream
from grpc.framework.interfaces.face import face

# pylint: disable=too-many-return-statements

_DEFAULT_POOL_SIZE = 8


class _ServerProtocolContext(interfaces.GRPCServicerContext):
    def __init__(self, servicer_context):
        self._servicer_context = servicer_context

    def peer(self):
        return self._servicer_context.peer()

    def disable_next_response_compression(self):
        pass  # TODO(https://github.com/grpc/grpc/issues/4078): design, implement.


class _FaceServicerContext(face.ServicerContext):
    def __init__(self, servicer_context):
        self._servicer_context = servicer_context

    def is_active(self):
        return self._servicer_context.is_active()

    def time_remaining(self):
        return self._servicer_context.time_remaining()

    def add_abortion_callback(self, abortion_callback):
        error_msg = "add_abortion_callback no longer supported server-side!"
        raise NotImplementedError(error_msg)

    def cancel(self):
        self._servicer_context.cancel()

    def protocol_context(self):
        return _ServerProtocolContext(self._servicer_context)

    def invocation_metadata(self):
        return _metadata.beta(self._servicer_context.invocation_metadata())

    def initial_metadata(self, initial_metadata):
        self._servicer_context.send_initial_metadata(
            _metadata.unbeta(initial_metadata)
        )

    def terminal_metadata(self, terminal_metadata):
        self._servicer_context.set_terminal_metadata(
            _metadata.unbeta(terminal_metadata)
        )

    def code(self, code):
        self._servicer_context.set_code(code)

    def details(self, details):
        self._servicer_context.set_details(details)


def _adapt_unary_request_inline(unary_request_inline):
    def adaptation(request, servicer_context):
        return unary_request_inline(
            request, _FaceServicerContext(servicer_context)
        )

    return adaptation


def _adapt_stream_request_inline(stream_request_inline):
    def adaptation(request_iterator, servicer_context):
        return stream_request_inline(
            request_iterator, _FaceServicerContext(servicer_context)
        )

    return adaptation


class _Callback(stream.Consumer):
    def __init__(self):
        self._condition = threading.Condition()
        self._values = []
        self._terminated = False
        self._cancelled = False

    def consume(self, value):
        with self._condition:
            self._values.append(value)
            self._condition.notify_all()

    def terminate(self):
        with self._condition:
            self._terminated = True
            self._condition.notify_all()

    def consume_and_terminate(self, value):
        with self._condition:
            self._values.append(value)
            self._terminated = True
            self._condition.notify_all()

    def cancel(self):
        with self._condition:
            self._cancelled = True
            self._condition.notify_all()

    def draw_one_value(self):
        with self._condition:
            while True:
                if self._cancelled:
                    raise abandonment.Abandoned()
                elif self._values:
                    return self._values.pop(0)
                elif self._terminated:
                    return None
                else:
                    self._condition.wait()

    def draw_all_values(self):
        with self._condition:
            while True:
                if self._cancelled:
                    raise abandonment.Abandoned()
                elif self._terminated:
                    all_values = tuple(self._values)
                    self._values = None
                    return all_values
                else:
                    self._condition.wait()


def _run_request_pipe_thread(
    request_iterator, request_consumer, servicer_context
):
    thread_joined = threading.Event()

    def pipe_requests():
        for request in request_iterator:
            if not servicer_context.is_active() or thread_joined.is_set():
                return
            request_consumer.consume(request)
            if not servicer_context.is_active() or thread_joined.is_set():
                return
        request_consumer.terminate()

    request_pipe_thread = threading.Thread(target=pipe_requests)
    request_pipe_thread.daemon = True
    request_pipe_thread.start()


def _adapt_unary_unary_event(unary_unary_event):
    def adaptation(request, servicer_context):
        callback = _Callback()
        if not servicer_context.add_callback(callback.cancel):
            raise abandonment.Abandoned()
        unary_unary_event(
            request,
            callback.consume_and_terminate,
            _FaceServicerContext(servicer_context),
        )
        return callback.draw_all_values()[0]

    return adaptation


def _adapt_unary_stream_event(unary_stream_event):
    def adaptation(request, servicer_context):
        callback = _Callback()
        if not servicer_context.add_callback(callback.cancel):
            raise abandonment.Abandoned()
        unary_stream_event(
            request, callback, _FaceServicerContext(servicer_context)
        )
        while True:
            response = callback.draw_one_value()
            if response is None:
                return
            else:
                yield response

    return adaptation


def _adapt_stream_unary_event(stream_unary_event):
    def adaptation(request_iterator, servicer_context):
        callback = _Callback()
        if not servicer_context.add_callback(callback.cancel):
            raise abandonment.Abandoned()
        request_consumer = stream_unary_event(
            callback.consume_and_terminate,
            _FaceServicerContext(servicer_context),
        )
        _run_request_pipe_thread(
            request_iterator, request_consumer, servicer_context
        )
        return callback.draw_all_values()[0]

    return adaptation


def _adapt_stream_stream_event(stream_stream_event):
    def adaptation(request_iterator, servicer_context):
        callback = _Callback()
        if not servicer_context.add_callback(callback.cancel):
            raise abandonment.Abandoned()
        request_consumer = stream_stream_event(
            callback, _FaceServicerContext(servicer_context)
        )
        _run_request_pipe_thread(
            request_iterator, request_consumer, servicer_context
        )
        while True:
            response = callback.draw_one_value()
            if response is None:
                return
            else:
                yield response

    return adaptation


class _SimpleMethodHandler(
    collections.namedtuple(
        "_MethodHandler",
        (
            "request_streaming",
            "response_streaming",
            "request_deserializer",
            "response_serializer",
            "unary_unary",
            "unary_stream",
            "stream_unary",
            "stream_stream",
        ),
    ),
    grpc.RpcMethodHandler,
):
    pass


def _simple_method_handler(  # noqa: PLR0911
    implementation, request_deserializer, response_serializer
):
    if implementation.style is style.Service.INLINE:
        if implementation.cardinality is cardinality.Cardinality.UNARY_UNARY:
            return _SimpleMethodHandler(
                False,
                False,
                request_deserializer,
                response_serializer,
                _adapt_unary_request_inline(implementation.unary_unary_inline),
                None,
                None,
                None,
            )
        if implementation.cardinality is cardinality.Cardinality.UNARY_STREAM:
            return _SimpleMethodHandler(
                False,
                True,
                request_deserializer,
                response_serializer,
                None,
                _adapt_unary_request_inline(implementation.unary_stream_inline),
                None,
                None,
            )
        if implementation.cardinality is cardinality.Cardinality.STREAM_UNARY:
            return _SimpleMethodHandler(
                True,
                False,
                request_deserializer,
                response_serializer,
                None,
                None,
                _adapt_stream_request_inline(
                    implementation.stream_unary_inline
                ),
                None,
            )
        if implementation.cardinality is cardinality.Cardinality.STREAM_STREAM:
            return _SimpleMethodHandler(
                True,
                True,
                request_deserializer,
                response_serializer,
                None,
                None,
                None,
                _adapt_stream_request_inline(
                    implementation.stream_stream_inline
                ),
            )
    elif implementation.style is style.Service.EVENT:
        if implementation.cardinality is cardinality.Cardinality.UNARY_UNARY:
            return _SimpleMethodHandler(
                False,
                False,
                request_deserializer,
                response_serializer,
                _adapt_unary_unary_event(implementation.unary_unary_event),
                None,
                None,
                None,
            )
        if implementation.cardinality is cardinality.Cardinality.UNARY_STREAM:
            return _SimpleMethodHandler(
                False,
                True,
                request_deserializer,
                response_serializer,
                None,
                _adapt_unary_stream_event(implementation.unary_stream_event),
                None,
                None,
            )
        if implementation.cardinality is cardinality.Cardinality.STREAM_UNARY:
            return _SimpleMethodHandler(
                True,
                False,
                request_deserializer,
                response_serializer,
                None,
                None,
                _adapt_stream_unary_event(implementation.stream_unary_event),
                None,
            )
        if implementation.cardinality is cardinality.Cardinality.STREAM_STREAM:
            return _SimpleMethodHandler(
                True,
                True,
                request_deserializer,
                response_serializer,
                None,
                None,
                None,
                _adapt_stream_stream_event(implementation.stream_stream_event),
            )
    raise ValueError()


def _flatten_method_pair_map(method_pair_map):
    method_pair_map = method_pair_map or {}
    flat_map = {}
    for method_pair in method_pair_map:
        method = _common.fully_qualified_method(method_pair[0], method_pair[1])
        flat_map[method] = method_pair_map[method_pair]
    return flat_map


class _GenericRpcHandler(grpc.GenericRpcHandler):
    def __init__(
        self,
        method_implementations,
        multi_method_implementation,
        request_deserializers,
        response_serializers,
    ):
        self._method_implementations = _flatten_method_pair_map(
            method_implementations
        )
        self._request_deserializers = _flatten_method_pair_map(
            request_deserializers
        )
        self._response_serializers = _flatten_method_pair_map(
            response_serializers
        )
        self._multi_method_implementation = multi_method_implementation

    def service(self, handler_call_details):
        method_implementation = self._method_implementations.get(
            handler_call_details.method
        )
        if method_implementation is not None:
            return _simple_method_handler(
                method_implementation,
                self._request_deserializers.get(handler_call_details.method),
                self._response_serializers.get(handler_call_details.method),
            )
        if self._multi_method_implementation is None:
            return None
        try:
            return None  # TODO(nathaniel): call the multimethod.
        except face.NoSuchMethodError:
            return None


class _Server(interfaces.Server):
    def __init__(self, grpc_server):
        self._grpc_server = grpc_server

    def add_insecure_port(self, address):
        return self._grpc_server.add_insecure_port(address)

    def add_secure_port(self, address, server_credentials):
        return self._grpc_server.add_secure_port(address, server_credentials)

    def start(self):
        self._grpc_server.start()

    def stop(self, grace):
        return self._grpc_server.stop(grace)

    def __enter__(self):
        self._grpc_server.start()
        return self

    def __exit__(self, exc_type, exc_val, exc_tb):
        self._grpc_server.stop(None)
        return False


def server(
    service_implementations,
    multi_method_implementation,
    request_deserializers,
    response_serializers,
    thread_pool,
    thread_pool_size,
):
    generic_rpc_handler = _GenericRpcHandler(
        service_implementations,
        multi_method_implementation,
        request_deserializers,
        response_serializers,
    )
    if thread_pool is None:
        effective_thread_pool = logging_pool.pool(
            _DEFAULT_POOL_SIZE if thread_pool_size is None else thread_pool_size
        )
    else:
        effective_thread_pool = thread_pool
    return _Server(
        grpc.server(effective_thread_pool, handlers=(generic_rpc_handler,))
    )
b IDATxytVսϓ22 A@IR :hCiZ[v*E:WũZA ^dQeQ @ !jZ'>gsV仿$|?g)&x-EIENT ;@xT.i%-X}SvS5.r/UHz^_$-W"w)Ɗ/@Z &IoX P$K}JzX:;` &, ŋui,e6mX ԵrKb1ԗ)DADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADA݀!I*]R;I2$eZ#ORZSrr6mteffu*((Pu'v{DIߔ4^pIm'77WEEE;vƎ4-$]'RI{\I&G :IHJ DWBB=\WR޽m o$K(V9ABB.}jѢv`^?IOȅ} ڶmG}T#FJ`56$-ھ}FI&v;0(h;Б38CӧOWf!;A i:F_m9s&|q%=#wZprrrla A &P\\СC[A#! {olF} `E2}MK/vV)i{4BffV\|ۭX`b@kɶ@%i$K z5zhmX[IXZ` 'b%$r5M4º/l ԃߖxhʔ)[@=} K6IM}^5k㏷݆z ΗÿO:gdGBmyT/@+Vɶ纽z񕏵l.y޴it뭷zV0[Y^>Wsqs}\/@$(T7f.InݺiR$푔n.~?H))\ZRW'Mo~v Ov6oԃxz! S,&xm/yɞԟ?'uaSѽb,8GלKboi&3t7Y,)JJ c[nzӳdE&KsZLӄ I?@&%ӟ۶mSMMњ0iؐSZ,|J+N ~,0A0!5%Q-YQQa3}$_vVrf9f?S8`zDADADADADADADADADAdqP,تmMmg1V?rSI꒟]u|l RCyEf٢9 jURbztѰ!m5~tGj2DhG*{H9)꒟ר3:(+3\?/;TUݭʴ~S6lڧUJ*i$d(#=Yݺd{,p|3B))q:vN0Y.jkק6;SɶVzHJJЀ-utѹսk>QUU\޲~]fFnK?&ߡ5b=z9)^|u_k-[y%ZNU6 7Mi:]ۦtk[n X(e6Bb."8cۭ|~teuuw|ήI-5"~Uk;ZicEmN/:]M> cQ^uiƞ??Ңpc#TUU3UakNwA`:Y_V-8.KKfRitv޲* 9S6ֿj,ՃNOMߤ]z^fOh|<>@Å5 _/Iu?{SY4hK/2]4%it5q]GGe2%iR| W&f*^]??vq[LgE_3f}Fxu~}qd-ږFxu~I N>\;͗O֊:̗WJ@BhW=y|GgwܷH_NY?)Tdi'?խwhlmQi !SUUsw4kӺe4rfxu-[nHtMFj}H_u~w>)oV}(T'ebʒv3_[+vn@Ȭ\S}ot}w=kHFnxg S 0eޢm~l}uqZfFoZuuEg `zt~? b;t%>WTkķh[2eG8LIWx,^\thrl^Ϊ{=dž<}qV@ ⠨Wy^LF_>0UkDuʫuCs$)Iv:IK;6ֲ4{^6եm+l3>݆uM 9u?>Zc }g~qhKwڭeFMM~pМuqǿz6Tb@8@Y|jx](^]gf}M"tG -w.@vOqh~/HII`S[l.6nØXL9vUcOoB\xoǤ'T&IǍQw_wpv[kmO{w~>#=P1Pɞa-we:iǏlHo׈꒟f9SzH?+shk%Fs:qVhqY`jvO'ρ?PyX3lх]˾uV{ݞ]1,MzYNW~̈́ joYn}ȚF߾׮mS]F z+EDxm/d{F{-W-4wY듏:??_gPf ^3ecg ҵs8R2מz@TANGj)}CNi/R~}c:5{!ZHӋӾ6}T]G]7W6^n 9*,YqOZj:P?Q DFL|?-^.Ɵ7}fFh׶xe2Pscz1&5\cn[=Vn[ĶE鎀uˌd3GII k;lNmشOuuRVfBE]ۣeӶu :X-[(er4~LHi6:Ѻ@ԅrST0trk%$Č0ez" *z"T/X9|8.C5Feg}CQ%͞ˣJvL/?j^h&9xF`њZ(&yF&Iݻfg#W;3^{Wo^4'vV[[K';+mӍִ]AC@W?1^{එyh +^]fm~iԵ]AB@WTk̏t uR?l.OIHiYyԶ]Aˀ7c:q}ힽaf6Z~қm(+sK4{^6}T*UUu]n.:kx{:2 _m=sAߤU@?Z-Vކеz왍Nэ{|5 pڶn b p-@sPg]0G7fy-M{GCF'%{4`=$-Ge\ eU:m+Zt'WjO!OAF@ik&t݆ϥ_ e}=]"Wz_.͜E3leWFih|t-wZۍ-uw=6YN{6|} |*={Ѽn.S.z1zjۻTH]흾 DuDvmvK.`V]yY~sI@t?/ϓ. m&["+P?MzovVЫG3-GRR[(!!\_,^%?v@ҵő m`Y)tem8GMx.))A]Y i`ViW`?^~!S#^+ѽGZj?Vģ0.))A꨷lzL*]OXrY`DBBLOj{-MH'ii-ϰ ok7^ )쭡b]UXSְmռY|5*cֽk0B7镹%ڽP#8nȎq}mJr23_>lE5$iwui+ H~F`IjƵ@q \ @#qG0".0" l`„.0! ,AQHN6qzkKJ#o;`Xv2>,tێJJ7Z/*A .@fفjMzkg @TvZH3Zxu6Ra'%O?/dQ5xYkU]Rֽkق@DaS^RSּ5|BeHNN͘p HvcYcC5:y #`οb;z2.!kr}gUWkyZn=f Pvsn3p~;4p˚=ē~NmI] ¾ 0lH[_L hsh_ғߤc_њec)g7VIZ5yrgk̞W#IjӪv>՞y睝M8[|]\շ8M6%|@PZڨI-m>=k='aiRo-x?>Q.}`Ȏ:Wsmu u > .@,&;+!!˱tﭧDQwRW\vF\~Q7>spYw$%A~;~}6¾ g&if_=j,v+UL1(tWake:@Ș>j$Gq2t7S?vL|]u/ .(0E6Mk6hiۺzښOrifޱxm/Gx> Lal%%~{lBsR4*}{0Z/tNIɚpV^#Lf:u@k#RSu =S^ZyuR/.@n&΃z~B=0eg뺆#,Þ[B/?H uUf7y Wy}Bwegל`Wh(||`l`.;Ws?V@"c:iɍL֯PGv6zctM̠':wuW;d=;EveD}9J@B(0iհ bvP1{\P&G7D޴Iy_$-Qjm~Yrr&]CDv%bh|Yzni_ˆR;kg}nJOIIwyuL}{ЌNj}:+3Y?:WJ/N+Rzd=hb;dj͒suݔ@NKMԄ jqzC5@y°hL m;*5ezᕏ=ep XL n?מ:r`۵tŤZ|1v`V뽧_csج'ߤ%oTuumk%%%h)uy]Nk[n 'b2 l.=͜E%gf$[c;s:V-͞WߤWh-j7]4=F-X]>ZLSi[Y*We;Zan(ӇW|e(HNNP5[= r4tP &0<pc#`vTNV GFqvTi*Tyam$ߏWyE*VJKMTfFw>'$-ؽ.Ho.8c"@DADADADADADADADADA~j*֘,N;Pi3599h=goضLgiJ5փy~}&Zd9p֚ e:|hL``b/d9p? fgg+%%hMgXosج, ΩOl0Zh=xdjLmhݻoO[g_l,8a]٭+ӧ0$I]c]:粹:Teꢢ"5a^Kgh,&= =՟^߶“ߢE ܹS J}I%:8 IDAT~,9/ʃPW'Mo}zNƍ쨓zPbNZ~^z=4mswg;5 Y~SVMRXUյڱRf?s:w ;6H:ºi5-maM&O3;1IKeamZh͛7+##v+c ~u~ca]GnF'ټL~PPPbn voC4R,ӟgg %hq}@#M4IÇ Oy^xMZx ) yOw@HkN˖-Sǎmb]X@n+i͖!++K3gd\$mt$^YfJ\8PRF)77Wא!Cl$i:@@_oG I{$# 8磌ŋ91A (Im7֭>}ߴJq7ޗt^ -[ԩSj*}%]&' -ɓ'ꫯVzzvB#;a 7@GxI{j޼ƌ.LÇWBB7`O"I$/@R @eee@۷>}0,ɒ2$53Xs|cS~rpTYYY} kHc %&k.], @ADADADADADADADADA@lT<%''*Lo^={رc5h %$+CnܸQ3fҥK}vUVVs9G R,_{xˇ3o߾;TTTd}馛]uuuG~iԩ@4bnvmvfϞ /Peeeq}}za I~,誫{UWW뮻}_~YƍSMMMYχ֝waw\ďcxꩧtEƍկ_?۷5@u?1kNׯWzz/wy>}zj3 k(ٺuq_Zvf̘:~ ABQ&r|!%KҥKgԞ={<_X-z !CyFUUz~ ABQIIIjݺW$UXXDٳZ~ ABQƍecW$<(~<RSSvZujjjԧOZQu@4 8m&&&jԩg$ď1h ͟?_{768@g =@`)))5o6m3)ѣƌJ;wҿUTT /KZR{~a=@0o<*狔iFɶ[ˎ;T]]OX@?K.ۈxN pppppppppppppppppPfl߾] ,{ァk۶mڿo5BTӦMӴiӴ|r DB2e|An!Dy'tkΝ[A $***t5' "!駟oaDnΝ:t֭[gDШQ06qD;@ x M6v(PiizmZ4ew"@̴ixf [~-Fٱc&IZ2|n!?$@{[HTɏ#@hȎI# _m(F /6Z3z'\r,r!;w2Z3j=~GY7"I$iI.p_"?pN`y DD?: _  Gÿab7J !Bx@0 Bo cG@`1C[@0G @`0C_u V1 aCX>W ` | `!<S `"<. `#c`?cAC4 ?c p#~@0?:08&_MQ1J h#?/`7;I  q 7a wQ A 1 Hp !#<8/#@1Ul7=S=K.4Z?E_$i@!1!E4?`P_  @Bă10#: "aU,xbFY1 [n|n #'vEH:`xb #vD4Y hi.i&EΖv#O H4IŶ}:Ikh @tZRF#(tXҙzZ ?I3l7q@õ|ۍ1,GpuY Ꮿ@hJv#xxk$ v#9 5 }_$c S#=+"K{F*m7`#%H:NRSp6I?sIՖ{Ap$I$I:QRv2$Z @UJ*$]<FO4IENDB`