Merge github.com:grpc/grpc into 50

pull/13255/head
Craig Tiller 7 years ago
commit 34992a63e0
  1. 145
      examples/python/helloworld/helloworld_pb2.py
  2. 3
      examples/python/helloworld/helloworld_pb2_grpc.py
  3. 310
      examples/python/route_guide/route_guide_pb2.py
  4. 3
      examples/python/route_guide/route_guide_pb2_grpc.py
  5. 71
      src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.cc
  6. 10
      src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.cc

@ -21,7 +21,6 @@ DESCRIPTOR = _descriptor.FileDescriptor(
syntax='proto3',
serialized_pb=_b('\n\x10helloworld.proto\x12\nhelloworld\"\x1c\n\x0cHelloRequest\x12\x0c\n\x04name\x18\x01 \x01(\t\"\x1d\n\nHelloReply\x12\x0f\n\x07message\x18\x01 \x01(\t2I\n\x07Greeter\x12>\n\x08SayHello\x12\x18.helloworld.HelloRequest\x1a\x16.helloworld.HelloReply\"\x00\x42\x36\n\x1bio.grpc.examples.helloworldB\x0fHelloWorldProtoP\x01\xa2\x02\x03HLWb\x06proto3')
)
_sym_db.RegisterFileDescriptor(DESCRIPTOR)
@ -89,6 +88,7 @@ _HELLOREPLY = _descriptor.Descriptor(
DESCRIPTOR.message_types_by_name['HelloRequest'] = _HELLOREQUEST
DESCRIPTOR.message_types_by_name['HelloReply'] = _HELLOREPLY
_sym_db.RegisterFileDescriptor(DESCRIPTOR)
HelloRequest = _reflection.GeneratedProtocolMessageType('HelloRequest', (_message.Message,), dict(
DESCRIPTOR = _HELLOREQUEST,
@ -107,123 +107,28 @@ _sym_db.RegisterMessage(HelloReply)
DESCRIPTOR.has_options = True
DESCRIPTOR._options = _descriptor._ParseOptions(descriptor_pb2.FileOptions(), _b('\n\033io.grpc.examples.helloworldB\017HelloWorldProtoP\001\242\002\003HLW'))
try:
# THESE ELEMENTS WILL BE DEPRECATED.
# Please use the generated *_pb2_grpc.py files instead.
import grpc
from grpc.framework.common import cardinality
from grpc.framework.interfaces.face import utilities as face_utilities
from grpc.beta import implementations as beta_implementations
from grpc.beta import interfaces as beta_interfaces
class GreeterStub(object):
"""The greeting service definition.
"""
def __init__(self, channel):
"""Constructor.
Args:
channel: A grpc.Channel.
"""
self.SayHello = channel.unary_unary(
'/helloworld.Greeter/SayHello',
request_serializer=HelloRequest.SerializeToString,
response_deserializer=HelloReply.FromString,
)
class GreeterServicer(object):
"""The greeting service definition.
"""
def SayHello(self, request, context):
"""Sends a greeting
"""
context.set_code(grpc.StatusCode.UNIMPLEMENTED)
context.set_details('Method not implemented!')
raise NotImplementedError('Method not implemented!')
def add_GreeterServicer_to_server(servicer, server):
rpc_method_handlers = {
'SayHello': grpc.unary_unary_rpc_method_handler(
servicer.SayHello,
request_deserializer=HelloRequest.FromString,
response_serializer=HelloReply.SerializeToString,
),
}
generic_handler = grpc.method_handlers_generic_handler(
'helloworld.Greeter', rpc_method_handlers)
server.add_generic_rpc_handlers((generic_handler,))
class BetaGreeterServicer(object):
"""The Beta API is deprecated for 0.15.0 and later.
It is recommended to use the GA API (classes and functions in this
file not marked beta) for all further purposes. This class was generated
only to ease transition from grpcio<0.15.0 to grpcio>=0.15.0."""
"""The greeting service definition.
"""
def SayHello(self, request, context):
"""Sends a greeting
"""
context.code(beta_interfaces.StatusCode.UNIMPLEMENTED)
class BetaGreeterStub(object):
"""The Beta API is deprecated for 0.15.0 and later.
It is recommended to use the GA API (classes and functions in this
file not marked beta) for all further purposes. This class was generated
only to ease transition from grpcio<0.15.0 to grpcio>=0.15.0."""
"""The greeting service definition.
"""
def SayHello(self, request, timeout, metadata=None, with_call=False, protocol_options=None):
"""Sends a greeting
"""
raise NotImplementedError()
SayHello.future = None
def beta_create_Greeter_server(servicer, pool=None, pool_size=None, default_timeout=None, maximum_timeout=None):
"""The Beta API is deprecated for 0.15.0 and later.
It is recommended to use the GA API (classes and functions in this
file not marked beta) for all further purposes. This function was
generated only to ease transition from grpcio<0.15.0 to grpcio>=0.15.0"""
request_deserializers = {
('helloworld.Greeter', 'SayHello'): HelloRequest.FromString,
}
response_serializers = {
('helloworld.Greeter', 'SayHello'): HelloReply.SerializeToString,
}
method_implementations = {
('helloworld.Greeter', 'SayHello'): face_utilities.unary_unary_inline(servicer.SayHello),
}
server_options = beta_implementations.server_options(request_deserializers=request_deserializers, response_serializers=response_serializers, thread_pool=pool, thread_pool_size=pool_size, default_timeout=default_timeout, maximum_timeout=maximum_timeout)
return beta_implementations.server(method_implementations, options=server_options)
def beta_create_Greeter_stub(channel, host=None, metadata_transformer=None, pool=None, pool_size=None):
"""The Beta API is deprecated for 0.15.0 and later.
It is recommended to use the GA API (classes and functions in this
file not marked beta) for all further purposes. This function was
generated only to ease transition from grpcio<0.15.0 to grpcio>=0.15.0"""
request_serializers = {
('helloworld.Greeter', 'SayHello'): HelloRequest.SerializeToString,
}
response_deserializers = {
('helloworld.Greeter', 'SayHello'): HelloReply.FromString,
}
cardinalities = {
'SayHello': cardinality.Cardinality.UNARY_UNARY,
}
stub_options = beta_implementations.stub_options(host=host, metadata_transformer=metadata_transformer, request_serializers=request_serializers, response_deserializers=response_deserializers, thread_pool=pool, thread_pool_size=pool_size)
return beta_implementations.dynamic_stub(channel, 'helloworld.Greeter', cardinalities, options=stub_options)
except ImportError:
pass
_GREETER = _descriptor.ServiceDescriptor(
name='Greeter',
full_name='helloworld.Greeter',
file=DESCRIPTOR,
index=0,
options=None,
serialized_start=93,
serialized_end=166,
methods=[
_descriptor.MethodDescriptor(
name='SayHello',
full_name='helloworld.Greeter.SayHello',
index=0,
containing_service=None,
input_type=_HELLOREQUEST,
output_type=_HELLOREPLY,
options=None,
),
])
_sym_db.RegisterServiceDescriptor(_GREETER)
DESCRIPTOR.services_by_name['Greeter'] = _GREETER
# @@protoc_insertion_point(module_scope)

@ -1,6 +1,5 @@
# Generated by the gRPC Python protocol compiler plugin. DO NOT EDIT!
import grpc
from grpc.framework.common import cardinality
from grpc.framework.interfaces.face import utilities as face_utilities
import helloworld_pb2 as helloworld__pb2

@ -21,7 +21,6 @@ DESCRIPTOR = _descriptor.FileDescriptor(
syntax='proto3',
serialized_pb=_b('\n\x11route_guide.proto\x12\nrouteguide\",\n\x05Point\x12\x10\n\x08latitude\x18\x01 \x01(\x05\x12\x11\n\tlongitude\x18\x02 \x01(\x05\"I\n\tRectangle\x12\x1d\n\x02lo\x18\x01 \x01(\x0b\x32\x11.routeguide.Point\x12\x1d\n\x02hi\x18\x02 \x01(\x0b\x32\x11.routeguide.Point\"<\n\x07\x46\x65\x61ture\x12\x0c\n\x04name\x18\x01 \x01(\t\x12#\n\x08location\x18\x02 \x01(\x0b\x32\x11.routeguide.Point\"A\n\tRouteNote\x12#\n\x08location\x18\x01 \x01(\x0b\x32\x11.routeguide.Point\x12\x0f\n\x07message\x18\x02 \x01(\t\"b\n\x0cRouteSummary\x12\x13\n\x0bpoint_count\x18\x01 \x01(\x05\x12\x15\n\rfeature_count\x18\x02 \x01(\x05\x12\x10\n\x08\x64istance\x18\x03 \x01(\x05\x12\x14\n\x0c\x65lapsed_time\x18\x04 \x01(\x05\x32\x85\x02\n\nRouteGuide\x12\x36\n\nGetFeature\x12\x11.routeguide.Point\x1a\x13.routeguide.Feature\"\x00\x12>\n\x0cListFeatures\x12\x15.routeguide.Rectangle\x1a\x13.routeguide.Feature\"\x00\x30\x01\x12>\n\x0bRecordRoute\x12\x11.routeguide.Point\x1a\x18.routeguide.RouteSummary\"\x00(\x01\x12?\n\tRouteChat\x12\x15.routeguide.RouteNote\x1a\x15.routeguide.RouteNote\"\x00(\x01\x30\x01\x42\x36\n\x1bio.grpc.examples.routeguideB\x0fRouteGuideProtoP\x01\xa2\x02\x03RTGb\x06proto3')
)
_sym_db.RegisterFileDescriptor(DESCRIPTOR)
@ -238,6 +237,7 @@ DESCRIPTOR.message_types_by_name['Rectangle'] = _RECTANGLE
DESCRIPTOR.message_types_by_name['Feature'] = _FEATURE
DESCRIPTOR.message_types_by_name['RouteNote'] = _ROUTENOTE
DESCRIPTOR.message_types_by_name['RouteSummary'] = _ROUTESUMMARY
_sym_db.RegisterFileDescriptor(DESCRIPTOR)
Point = _reflection.GeneratedProtocolMessageType('Point', (_message.Message,), dict(
DESCRIPTOR = _POINT,
@ -277,265 +277,55 @@ _sym_db.RegisterMessage(RouteSummary)
DESCRIPTOR.has_options = True
DESCRIPTOR._options = _descriptor._ParseOptions(descriptor_pb2.FileOptions(), _b('\n\033io.grpc.examples.routeguideB\017RouteGuideProtoP\001\242\002\003RTG'))
try:
# THESE ELEMENTS WILL BE DEPRECATED.
# Please use the generated *_pb2_grpc.py files instead.
import grpc
from grpc.framework.common import cardinality
from grpc.framework.interfaces.face import utilities as face_utilities
from grpc.beta import implementations as beta_implementations
from grpc.beta import interfaces as beta_interfaces
class RouteGuideStub(object):
"""Interface exported by the server.
"""
def __init__(self, channel):
"""Constructor.
Args:
channel: A grpc.Channel.
"""
self.GetFeature = channel.unary_unary(
'/routeguide.RouteGuide/GetFeature',
request_serializer=Point.SerializeToString,
response_deserializer=Feature.FromString,
)
self.ListFeatures = channel.unary_stream(
'/routeguide.RouteGuide/ListFeatures',
request_serializer=Rectangle.SerializeToString,
response_deserializer=Feature.FromString,
)
self.RecordRoute = channel.stream_unary(
'/routeguide.RouteGuide/RecordRoute',
request_serializer=Point.SerializeToString,
response_deserializer=RouteSummary.FromString,
)
self.RouteChat = channel.stream_stream(
'/routeguide.RouteGuide/RouteChat',
request_serializer=RouteNote.SerializeToString,
response_deserializer=RouteNote.FromString,
)
class RouteGuideServicer(object):
"""Interface exported by the server.
"""
def GetFeature(self, request, context):
"""A simple RPC.
Obtains the feature at a given position.
A feature with an empty name is returned if there's no feature at the given
position.
"""
context.set_code(grpc.StatusCode.UNIMPLEMENTED)
context.set_details('Method not implemented!')
raise NotImplementedError('Method not implemented!')
def ListFeatures(self, request, context):
"""A server-to-client streaming RPC.
Obtains the Features available within the given Rectangle. Results are
streamed rather than returned at once (e.g. in a response message with a
repeated field), as the rectangle may cover a large area and contain a
huge number of features.
"""
context.set_code(grpc.StatusCode.UNIMPLEMENTED)
context.set_details('Method not implemented!')
raise NotImplementedError('Method not implemented!')
def RecordRoute(self, request_iterator, context):
"""A client-to-server streaming RPC.
Accepts a stream of Points on a route being traversed, returning a
RouteSummary when traversal is completed.
"""
context.set_code(grpc.StatusCode.UNIMPLEMENTED)
context.set_details('Method not implemented!')
raise NotImplementedError('Method not implemented!')
def RouteChat(self, request_iterator, context):
"""A Bidirectional streaming RPC.
Accepts a stream of RouteNotes sent while a route is being traversed,
while receiving other RouteNotes (e.g. from other users).
"""
context.set_code(grpc.StatusCode.UNIMPLEMENTED)
context.set_details('Method not implemented!')
raise NotImplementedError('Method not implemented!')
def add_RouteGuideServicer_to_server(servicer, server):
rpc_method_handlers = {
'GetFeature': grpc.unary_unary_rpc_method_handler(
servicer.GetFeature,
request_deserializer=Point.FromString,
response_serializer=Feature.SerializeToString,
),
'ListFeatures': grpc.unary_stream_rpc_method_handler(
servicer.ListFeatures,
request_deserializer=Rectangle.FromString,
response_serializer=Feature.SerializeToString,
),
'RecordRoute': grpc.stream_unary_rpc_method_handler(
servicer.RecordRoute,
request_deserializer=Point.FromString,
response_serializer=RouteSummary.SerializeToString,
),
'RouteChat': grpc.stream_stream_rpc_method_handler(
servicer.RouteChat,
request_deserializer=RouteNote.FromString,
response_serializer=RouteNote.SerializeToString,
),
}
generic_handler = grpc.method_handlers_generic_handler(
'routeguide.RouteGuide', rpc_method_handlers)
server.add_generic_rpc_handlers((generic_handler,))
class BetaRouteGuideServicer(object):
"""The Beta API is deprecated for 0.15.0 and later.
It is recommended to use the GA API (classes and functions in this
file not marked beta) for all further purposes. This class was generated
only to ease transition from grpcio<0.15.0 to grpcio>=0.15.0."""
"""Interface exported by the server.
"""
def GetFeature(self, request, context):
"""A simple RPC.
Obtains the feature at a given position.
A feature with an empty name is returned if there's no feature at the given
position.
"""
context.code(beta_interfaces.StatusCode.UNIMPLEMENTED)
def ListFeatures(self, request, context):
"""A server-to-client streaming RPC.
Obtains the Features available within the given Rectangle. Results are
streamed rather than returned at once (e.g. in a response message with a
repeated field), as the rectangle may cover a large area and contain a
huge number of features.
"""
context.code(beta_interfaces.StatusCode.UNIMPLEMENTED)
def RecordRoute(self, request_iterator, context):
"""A client-to-server streaming RPC.
Accepts a stream of Points on a route being traversed, returning a
RouteSummary when traversal is completed.
"""
context.code(beta_interfaces.StatusCode.UNIMPLEMENTED)
def RouteChat(self, request_iterator, context):
"""A Bidirectional streaming RPC.
Accepts a stream of RouteNotes sent while a route is being traversed,
while receiving other RouteNotes (e.g. from other users).
"""
context.code(beta_interfaces.StatusCode.UNIMPLEMENTED)
class BetaRouteGuideStub(object):
"""The Beta API is deprecated for 0.15.0 and later.
It is recommended to use the GA API (classes and functions in this
file not marked beta) for all further purposes. This class was generated
only to ease transition from grpcio<0.15.0 to grpcio>=0.15.0."""
"""Interface exported by the server.
"""
def GetFeature(self, request, timeout, metadata=None, with_call=False, protocol_options=None):
"""A simple RPC.
Obtains the feature at a given position.
A feature with an empty name is returned if there's no feature at the given
position.
"""
raise NotImplementedError()
GetFeature.future = None
def ListFeatures(self, request, timeout, metadata=None, with_call=False, protocol_options=None):
"""A server-to-client streaming RPC.
Obtains the Features available within the given Rectangle. Results are
streamed rather than returned at once (e.g. in a response message with a
repeated field), as the rectangle may cover a large area and contain a
huge number of features.
"""
raise NotImplementedError()
def RecordRoute(self, request_iterator, timeout, metadata=None, with_call=False, protocol_options=None):
"""A client-to-server streaming RPC.
Accepts a stream of Points on a route being traversed, returning a
RouteSummary when traversal is completed.
"""
raise NotImplementedError()
RecordRoute.future = None
def RouteChat(self, request_iterator, timeout, metadata=None, with_call=False, protocol_options=None):
"""A Bidirectional streaming RPC.
Accepts a stream of RouteNotes sent while a route is being traversed,
while receiving other RouteNotes (e.g. from other users).
"""
raise NotImplementedError()
def beta_create_RouteGuide_server(servicer, pool=None, pool_size=None, default_timeout=None, maximum_timeout=None):
"""The Beta API is deprecated for 0.15.0 and later.
It is recommended to use the GA API (classes and functions in this
file not marked beta) for all further purposes. This function was
generated only to ease transition from grpcio<0.15.0 to grpcio>=0.15.0"""
request_deserializers = {
('routeguide.RouteGuide', 'GetFeature'): Point.FromString,
('routeguide.RouteGuide', 'ListFeatures'): Rectangle.FromString,
('routeguide.RouteGuide', 'RecordRoute'): Point.FromString,
('routeguide.RouteGuide', 'RouteChat'): RouteNote.FromString,
}
response_serializers = {
('routeguide.RouteGuide', 'GetFeature'): Feature.SerializeToString,
('routeguide.RouteGuide', 'ListFeatures'): Feature.SerializeToString,
('routeguide.RouteGuide', 'RecordRoute'): RouteSummary.SerializeToString,
('routeguide.RouteGuide', 'RouteChat'): RouteNote.SerializeToString,
}
method_implementations = {
('routeguide.RouteGuide', 'GetFeature'): face_utilities.unary_unary_inline(servicer.GetFeature),
('routeguide.RouteGuide', 'ListFeatures'): face_utilities.unary_stream_inline(servicer.ListFeatures),
('routeguide.RouteGuide', 'RecordRoute'): face_utilities.stream_unary_inline(servicer.RecordRoute),
('routeguide.RouteGuide', 'RouteChat'): face_utilities.stream_stream_inline(servicer.RouteChat),
}
server_options = beta_implementations.server_options(request_deserializers=request_deserializers, response_serializers=response_serializers, thread_pool=pool, thread_pool_size=pool_size, default_timeout=default_timeout, maximum_timeout=maximum_timeout)
return beta_implementations.server(method_implementations, options=server_options)
def beta_create_RouteGuide_stub(channel, host=None, metadata_transformer=None, pool=None, pool_size=None):
"""The Beta API is deprecated for 0.15.0 and later.
_ROUTEGUIDE = _descriptor.ServiceDescriptor(
name='RouteGuide',
full_name='routeguide.RouteGuide',
file=DESCRIPTOR,
index=0,
options=None,
serialized_start=384,
serialized_end=645,
methods=[
_descriptor.MethodDescriptor(
name='GetFeature',
full_name='routeguide.RouteGuide.GetFeature',
index=0,
containing_service=None,
input_type=_POINT,
output_type=_FEATURE,
options=None,
),
_descriptor.MethodDescriptor(
name='ListFeatures',
full_name='routeguide.RouteGuide.ListFeatures',
index=1,
containing_service=None,
input_type=_RECTANGLE,
output_type=_FEATURE,
options=None,
),
_descriptor.MethodDescriptor(
name='RecordRoute',
full_name='routeguide.RouteGuide.RecordRoute',
index=2,
containing_service=None,
input_type=_POINT,
output_type=_ROUTESUMMARY,
options=None,
),
_descriptor.MethodDescriptor(
name='RouteChat',
full_name='routeguide.RouteGuide.RouteChat',
index=3,
containing_service=None,
input_type=_ROUTENOTE,
output_type=_ROUTENOTE,
options=None,
),
])
_sym_db.RegisterServiceDescriptor(_ROUTEGUIDE)
DESCRIPTOR.services_by_name['RouteGuide'] = _ROUTEGUIDE
It is recommended to use the GA API (classes and functions in this
file not marked beta) for all further purposes. This function was
generated only to ease transition from grpcio<0.15.0 to grpcio>=0.15.0"""
request_serializers = {
('routeguide.RouteGuide', 'GetFeature'): Point.SerializeToString,
('routeguide.RouteGuide', 'ListFeatures'): Rectangle.SerializeToString,
('routeguide.RouteGuide', 'RecordRoute'): Point.SerializeToString,
('routeguide.RouteGuide', 'RouteChat'): RouteNote.SerializeToString,
}
response_deserializers = {
('routeguide.RouteGuide', 'GetFeature'): Feature.FromString,
('routeguide.RouteGuide', 'ListFeatures'): Feature.FromString,
('routeguide.RouteGuide', 'RecordRoute'): RouteSummary.FromString,
('routeguide.RouteGuide', 'RouteChat'): RouteNote.FromString,
}
cardinalities = {
'GetFeature': cardinality.Cardinality.UNARY_UNARY,
'ListFeatures': cardinality.Cardinality.UNARY_STREAM,
'RecordRoute': cardinality.Cardinality.STREAM_UNARY,
'RouteChat': cardinality.Cardinality.STREAM_STREAM,
}
stub_options = beta_implementations.stub_options(host=host, metadata_transformer=metadata_transformer, request_serializers=request_serializers, response_deserializers=response_deserializers, thread_pool=pool, thread_pool_size=pool_size)
return beta_implementations.dynamic_stub(channel, 'routeguide.RouteGuide', cardinalities, options=stub_options)
except ImportError:
pass
# @@protoc_insertion_point(module_scope)

@ -1,6 +1,5 @@
# Generated by the gRPC Python protocol compiler plugin. DO NOT EDIT!
import grpc
from grpc.framework.common import cardinality
from grpc.framework.interfaces.face import utilities as face_utilities
import route_guide_pb2 as route__guide__pb2

@ -1163,36 +1163,52 @@ static int glb_pick_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol,
"won't work without it. Failing"));
return 0;
}
glb_lb_policy* glb_policy = (glb_lb_policy*)pol;
bool pick_done;
bool pick_done = false;
if (glb_policy->rr_policy != NULL) {
if (GRPC_TRACER_ON(grpc_lb_glb_trace)) {
gpr_log(GPR_INFO, "grpclb %p about to PICK from RR %p", (void*)glb_policy,
(void*)glb_policy->rr_policy);
const grpc_connectivity_state rr_connectivity_state =
grpc_lb_policy_check_connectivity_locked(exec_ctx,
glb_policy->rr_policy, NULL);
// The glb_policy->rr_policy may have transitioned to SHUTDOWN but the
// callback registered to capture this event
// (glb_rr_connectivity_changed_locked) may not have been invoked yet. We
// need to make sure we aren't trying to pick from a RR policy instance
// that's in shutdown.
if (rr_connectivity_state == GRPC_CHANNEL_SHUTDOWN) {
if (GRPC_TRACER_ON(grpc_lb_glb_trace)) {
gpr_log(GPR_INFO,
"grpclb %p NOT picking from from RR %p: RR conn state=%s",
(void*)glb_policy, (void*)glb_policy->rr_policy,
grpc_connectivity_state_name(rr_connectivity_state));
}
add_pending_pick(&glb_policy->pending_picks, pick_args, target, context,
on_complete);
pick_done = false;
} else { // RR not in shutdown
if (GRPC_TRACER_ON(grpc_lb_glb_trace)) {
gpr_log(GPR_INFO, "grpclb %p about to PICK from RR %p",
(void*)glb_policy, (void*)glb_policy->rr_policy);
}
GRPC_LB_POLICY_REF(glb_policy->rr_policy, "glb_pick");
wrapped_rr_closure_arg* wc_arg =
(wrapped_rr_closure_arg*)gpr_zalloc(sizeof(wrapped_rr_closure_arg));
GRPC_CLOSURE_INIT(&wc_arg->wrapper_closure, wrapped_rr_closure, wc_arg,
grpc_schedule_on_exec_ctx);
wc_arg->rr_policy = glb_policy->rr_policy;
wc_arg->target = target;
wc_arg->context = context;
GPR_ASSERT(glb_policy->client_stats != NULL);
wc_arg->client_stats =
grpc_grpclb_client_stats_ref(glb_policy->client_stats);
wc_arg->wrapped_closure = on_complete;
wc_arg->lb_token_mdelem_storage = pick_args->lb_token_mdelem_storage;
wc_arg->initial_metadata = pick_args->initial_metadata;
wc_arg->free_when_done = wc_arg;
pick_done =
pick_from_internal_rr_locked(exec_ctx, glb_policy, pick_args,
false /* force_async */, target, wc_arg);
}
GRPC_LB_POLICY_REF(glb_policy->rr_policy, "glb_pick");
wrapped_rr_closure_arg* wc_arg =
(wrapped_rr_closure_arg*)gpr_zalloc(sizeof(wrapped_rr_closure_arg));
GRPC_CLOSURE_INIT(&wc_arg->wrapper_closure, wrapped_rr_closure, wc_arg,
grpc_schedule_on_exec_ctx);
wc_arg->rr_policy = glb_policy->rr_policy;
wc_arg->target = target;
wc_arg->context = context;
GPR_ASSERT(glb_policy->client_stats != NULL);
wc_arg->client_stats =
grpc_grpclb_client_stats_ref(glb_policy->client_stats);
wc_arg->wrapped_closure = on_complete;
wc_arg->lb_token_mdelem_storage = pick_args->lb_token_mdelem_storage;
wc_arg->initial_metadata = pick_args->initial_metadata;
wc_arg->free_when_done = wc_arg;
pick_done =
pick_from_internal_rr_locked(exec_ctx, glb_policy, pick_args,
false /* force_async */, target, wc_arg);
} else {
} else { // glb_policy->rr_policy == NULL
if (GRPC_TRACER_ON(grpc_lb_glb_trace)) {
gpr_log(GPR_DEBUG,
"No RR policy in grpclb instance %p. Adding to grpclb's pending "
@ -1201,7 +1217,6 @@ static int glb_pick_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol,
}
add_pending_pick(&glb_policy->pending_picks, pick_args, target, context,
on_complete);
if (!glb_policy->started_picking) {
start_picking_locked(exec_ctx, glb_policy);
}

@ -276,10 +276,11 @@ static int rr_pick_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol,
grpc_call_context_element* context, void** user_data,
grpc_closure* on_complete) {
round_robin_lb_policy* p = (round_robin_lb_policy*)pol;
GPR_ASSERT(!p->shutdown);
if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) {
gpr_log(GPR_INFO, "[RR %p] Trying to pick", (void*)pol);
gpr_log(GPR_INFO, "[RR %p] Trying to pick (shutdown: %d)", (void*)pol,
p->shutdown);
}
GPR_ASSERT(!p->shutdown);
if (p->subchannel_list != NULL) {
const size_t next_ready_index = get_next_ready_subchannel_index_locked(p);
if (next_ready_index < p->subchannel_list->num_subchannels) {
@ -392,6 +393,11 @@ static grpc_connectivity_state update_lb_connectivity_status_locked(
"rr_shutdown");
p->shutdown = true;
new_state = GRPC_CHANNEL_SHUTDOWN;
if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) {
gpr_log(GPR_INFO,
"[RR %p] Shutting down: all subchannels have gone into shutdown",
(void*)p);
}
} else if (subchannel_list->num_transient_failures ==
p->subchannel_list->num_subchannels) { /* 4) TRANSIENT_FAILURE */
grpc_connectivity_state_set(exec_ctx, &p->state_tracker,

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