Merge pull request #16507 from markdroth/health_checking_client

Health checking client

1 files changed, 35 insertions, 9 deletions

diff --git a/Makefile b/Makefile
index 42166082b0..d0a3f86383 100644
--- a/Makefile
+++ b/Makefile
@@ -3698,6 +3698,7 @@ LIBGRPC_SRC = \
     src/core/ext/filters/client_channel/client_channel_factory.cc \
     src/core/ext/filters/client_channel/client_channel_plugin.cc \
     src/core/ext/filters/client_channel/connector.cc \
+    src/core/ext/filters/client_channel/health/health_check_client.cc \
     src/core/ext/filters/client_channel/http_connect_handshaker.cc \
     src/core/ext/filters/client_channel/http_proxy.cc \
     src/core/ext/filters/client_channel/lb_policy.cc \
@@ -3714,6 +3715,7 @@ LIBGRPC_SRC = \
     src/core/ext/filters/client_channel/subchannel_index.cc \
     src/core/ext/filters/client_channel/uri_parser.cc \
     src/core/ext/filters/deadline/deadline_filter.cc \
+    src/core/ext/filters/client_channel/health/health.pb.c \
     src/core/tsi/alts_transport_security.cc \
     src/core/tsi/fake_transport_security.cc \
     src/core/tsi/local_transport_security.cc \
@@ -4042,6 +4044,7 @@ LIBGRPC_CRONET_SRC = \
     src/core/ext/filters/client_channel/client_channel_factory.cc \
     src/core/ext/filters/client_channel/client_channel_plugin.cc \
     src/core/ext/filters/client_channel/connector.cc \
+    src/core/ext/filters/client_channel/health/health_check_client.cc \
     src/core/ext/filters/client_channel/http_connect_handshaker.cc \
     src/core/ext/filters/client_channel/http_proxy.cc \
     src/core/ext/filters/client_channel/lb_policy.cc \
@@ -4058,6 +4061,10 @@ LIBGRPC_CRONET_SRC = \
     src/core/ext/filters/client_channel/subchannel_index.cc \
     src/core/ext/filters/client_channel/uri_parser.cc \
     src/core/ext/filters/deadline/deadline_filter.cc \
+    src/core/ext/filters/client_channel/health/health.pb.c \
+    third_party/nanopb/pb_common.c \
+    third_party/nanopb/pb_decode.c \
+    third_party/nanopb/pb_encode.c \
     src/core/lib/http/httpcli_security_connector.cc \
     src/core/lib/security/context/security_context.cc \
     src/core/lib/security/credentials/alts/alts_credentials.cc \
@@ -4122,9 +4129,6 @@ LIBGRPC_CRONET_SRC = \
     src/core/tsi/alts/handshaker/altscontext.pb.c \
     src/core/tsi/alts/handshaker/handshaker.pb.c \
     src/core/tsi/alts/handshaker/transport_security_common.pb.c \
-    third_party/nanopb/pb_common.c \
-    third_party/nanopb/pb_decode.c \
-    third_party/nanopb/pb_encode.c \
     src/core/tsi/transport_security.cc \
     src/core/ext/transport/chttp2/client/insecure/channel_create.cc \
     src/core/ext/transport/chttp2/client/insecure/channel_create_posix.cc \
@@ -4405,6 +4409,7 @@ LIBGRPC_TEST_UTIL_SRC = \
     src/core/ext/filters/client_channel/client_channel_factory.cc \
     src/core/ext/filters/client_channel/client_channel_plugin.cc \
     src/core/ext/filters/client_channel/connector.cc \
+    src/core/ext/filters/client_channel/health/health_check_client.cc \
     src/core/ext/filters/client_channel/http_connect_handshaker.cc \
     src/core/ext/filters/client_channel/http_proxy.cc \
     src/core/ext/filters/client_channel/lb_policy.cc \
@@ -4421,6 +4426,10 @@ LIBGRPC_TEST_UTIL_SRC = \
     src/core/ext/filters/client_channel/subchannel_index.cc \
     src/core/ext/filters/client_channel/uri_parser.cc \
     src/core/ext/filters/deadline/deadline_filter.cc \
+    src/core/ext/filters/client_channel/health/health.pb.c \
+    third_party/nanopb/pb_common.c \
+    third_party/nanopb/pb_decode.c \
+    third_party/nanopb/pb_encode.c \
     src/core/ext/transport/chttp2/transport/bin_decoder.cc \
     src/core/ext/transport/chttp2/transport/bin_encoder.cc \
     src/core/ext/transport/chttp2/transport/chttp2_plugin.cc \
@@ -4705,6 +4714,7 @@ LIBGRPC_TEST_UTIL_UNSECURE_SRC = \
     src/core/ext/filters/client_channel/client_channel_factory.cc \
     src/core/ext/filters/client_channel/client_channel_plugin.cc \
     src/core/ext/filters/client_channel/connector.cc \
+    src/core/ext/filters/client_channel/health/health_check_client.cc \
     src/core/ext/filters/client_channel/http_connect_handshaker.cc \
     src/core/ext/filters/client_channel/http_proxy.cc \
     src/core/ext/filters/client_channel/lb_policy.cc \
@@ -4721,6 +4731,10 @@ LIBGRPC_TEST_UTIL_UNSECURE_SRC = \
     src/core/ext/filters/client_channel/subchannel_index.cc \
     src/core/ext/filters/client_channel/uri_parser.cc \
     src/core/ext/filters/deadline/deadline_filter.cc \
+    src/core/ext/filters/client_channel/health/health.pb.c \
+    third_party/nanopb/pb_common.c \
+    third_party/nanopb/pb_decode.c \
+    third_party/nanopb/pb_encode.c \
     src/core/ext/transport/chttp2/transport/bin_decoder.cc \
     src/core/ext/transport/chttp2/transport/bin_encoder.cc \
     src/core/ext/transport/chttp2/transport/chttp2_plugin.cc \
@@ -5005,6 +5019,7 @@ LIBGRPC_UNSECURE_SRC = \
     src/core/ext/filters/client_channel/client_channel_factory.cc \
     src/core/ext/filters/client_channel/client_channel_plugin.cc \
     src/core/ext/filters/client_channel/connector.cc \
+    src/core/ext/filters/client_channel/health/health_check_client.cc \
     src/core/ext/filters/client_channel/http_connect_handshaker.cc \
     src/core/ext/filters/client_channel/http_proxy.cc \
     src/core/ext/filters/client_channel/lb_policy.cc \
@@ -5021,6 +5036,10 @@ LIBGRPC_UNSECURE_SRC = \
     src/core/ext/filters/client_channel/subchannel_index.cc \
     src/core/ext/filters/client_channel/uri_parser.cc \
     src/core/ext/filters/deadline/deadline_filter.cc \
+    src/core/ext/filters/client_channel/health/health.pb.c \
+    third_party/nanopb/pb_common.c \
+    third_party/nanopb/pb_decode.c \
+    third_party/nanopb/pb_encode.c \
     src/core/ext/transport/inproc/inproc_plugin.cc \
     src/core/ext/transport/inproc/inproc_transport.cc \
     src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.cc \
@@ -5039,9 +5058,6 @@ LIBGRPC_UNSECURE_SRC = \
     src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.cc \
     src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_client_stats.cc \
     src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.cc \
-    third_party/nanopb/pb_common.c \
-    third_party/nanopb/pb_decode.c \
-    third_party/nanopb/pb_encode.c \
     src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/google/protobuf/duration.pb.c \
     src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/google/protobuf/timestamp.pb.c \
     src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c \
@@ -5240,7 +5256,6 @@ LIBGRPC++_SRC = \
     src/cpp/server/create_default_thread_pool.cc \
     src/cpp/server/dynamic_thread_pool.cc \
     src/cpp/server/health/default_health_check_service.cc \
-    src/cpp/server/health/health.pb.c \
     src/cpp/server/health/health_check_service.cc \
     src/cpp/server/health/health_check_service_server_builder_option.cc \
     src/cpp/server/server_builder.cc \
@@ -5253,6 +5268,10 @@ LIBGRPC++_SRC = \
     src/cpp/util/status.cc \
     src/cpp/util/string_ref.cc \
     src/cpp/util/time_cc.cc \
+    src/core/ext/filters/client_channel/health/health.pb.c \
+    third_party/nanopb/pb_common.c \
+    third_party/nanopb/pb_decode.c \
+    third_party/nanopb/pb_encode.c \
     src/cpp/codegen/codegen_init.cc \
 
 PUBLIC_HEADERS_CXX += \
@@ -5611,7 +5630,6 @@ LIBGRPC++_CRONET_SRC = \
     src/cpp/server/create_default_thread_pool.cc \
     src/cpp/server/dynamic_thread_pool.cc \
     src/cpp/server/health/default_health_check_service.cc \
-    src/cpp/server/health/health.pb.c \
     src/cpp/server/health/health_check_service.cc \
     src/cpp/server/health/health_check_service_server_builder_option.cc \
     src/cpp/server/server_builder.cc \
@@ -5624,6 +5642,10 @@ LIBGRPC++_CRONET_SRC = \
     src/cpp/util/status.cc \
     src/cpp/util/string_ref.cc \
     src/cpp/util/time_cc.cc \
+    src/core/ext/filters/client_channel/health/health.pb.c \
+    third_party/nanopb/pb_common.c \
+    third_party/nanopb/pb_decode.c \
+    third_party/nanopb/pb_encode.c \
     src/cpp/codegen/codegen_init.cc \
     src/core/ext/transport/chttp2/client/insecure/channel_create.cc \
     src/core/ext/transport/chttp2/client/insecure/channel_create_posix.cc \
@@ -5814,6 +5836,7 @@ LIBGRPC++_CRONET_SRC = \
     src/core/ext/filters/client_channel/client_channel_factory.cc \
     src/core/ext/filters/client_channel/client_channel_plugin.cc \
     src/core/ext/filters/client_channel/connector.cc \
+    src/core/ext/filters/client_channel/health/health_check_client.cc \
     src/core/ext/filters/client_channel/http_connect_handshaker.cc \
     src/core/ext/filters/client_channel/http_proxy.cc \
     src/core/ext/filters/client_channel/lb_policy.cc \
@@ -6699,7 +6722,6 @@ LIBGRPC++_UNSECURE_SRC = \
     src/cpp/server/create_default_thread_pool.cc \
     src/cpp/server/dynamic_thread_pool.cc \
     src/cpp/server/health/default_health_check_service.cc \
-    src/cpp/server/health/health.pb.c \
     src/cpp/server/health/health_check_service.cc \
     src/cpp/server/health/health_check_service_server_builder_option.cc \
     src/cpp/server/server_builder.cc \
@@ -6712,6 +6734,10 @@ LIBGRPC++_UNSECURE_SRC = \
     src/cpp/util/status.cc \
     src/cpp/util/string_ref.cc \
     src/cpp/util/time_cc.cc \
+    src/core/ext/filters/client_channel/health/health.pb.c \
+    third_party/nanopb/pb_common.c \
+    third_party/nanopb/pb_decode.c \
+    third_party/nanopb/pb_encode.c \
     src/cpp/codegen/codegen_init.cc \
 
 PUBLIC_HEADERS_CXX += \