Begin optionalizing lb policies: initial code movement

BUILD

@@ -196,9 +196,9 @@ cc_library(
     "src/core/lib/client_config/client_config.h",
     "src/core/lib/client_config/connector.h",
     "src/core/lib/client_config/initial_connect_string.h",
-    "src/core/lib/client_config/lb_policies/load_balancer_api.h",
-    "src/core/lib/client_config/lb_policies/pick_first.h",
-    "src/core/lib/client_config/lb_policies/round_robin.h",
+    "src/core/ext/lb_policy/grpclb/load_balancer_api.h",
+    "src/core/ext/lb_policy/pick_first/pick_first.h",
+    "src/core/ext/lb_policy/round_robin/round_robin.h",
     "src/core/lib/client_config/lb_policy.h",
     "src/core/lib/client_config/lb_policy_factory.h",
     "src/core/lib/client_config/lb_policy_registry.h",
@@ -258,7 +258,7 @@ cc_library(
     "src/core/lib/json/json_common.h",
     "src/core/lib/json/json_reader.h",
     "src/core/lib/json/json_writer.h",
-    "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h",
+    "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h",
     "src/core/lib/security/auth_filters.h",
     "src/core/lib/security/b64.h",
     "src/core/lib/security/credentials.h",
@@ -345,9 +345,9 @@ cc_library(
     "src/core/lib/client_config/connector.c",
     "src/core/lib/client_config/default_initial_connect_string.c",
     "src/core/lib/client_config/initial_connect_string.c",
-    "src/core/lib/client_config/lb_policies/load_balancer_api.c",
-    "src/core/lib/client_config/lb_policies/pick_first.c",
-    "src/core/lib/client_config/lb_policies/round_robin.c",
+    "src/core/ext/lb_policy/grpclb/load_balancer_api.c",
+    "src/core/ext/lb_policy/pick_first/pick_first.c",
+    "src/core/ext/lb_policy/round_robin/round_robin.c",
     "src/core/lib/client_config/lb_policy.c",
     "src/core/lib/client_config/lb_policy_factory.c",
     "src/core/lib/client_config/lb_policy_registry.c",
@@ -413,7 +413,7 @@ cc_library(
     "src/core/lib/json/json_reader.c",
     "src/core/lib/json/json_string.c",
     "src/core/lib/json/json_writer.c",
-    "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c",
+    "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.c",
     "src/core/lib/security/b64.c",
     "src/core/lib/security/client_auth_filter.c",
     "src/core/lib/security/credentials.c",
@@ -571,9 +571,9 @@ cc_library(
     "src/core/lib/client_config/client_config.h",
     "src/core/lib/client_config/connector.h",
     "src/core/lib/client_config/initial_connect_string.h",
-    "src/core/lib/client_config/lb_policies/load_balancer_api.h",
-    "src/core/lib/client_config/lb_policies/pick_first.h",
-    "src/core/lib/client_config/lb_policies/round_robin.h",
+    "src/core/ext/lb_policy/grpclb/load_balancer_api.h",
+    "src/core/ext/lb_policy/pick_first/pick_first.h",
+    "src/core/ext/lb_policy/round_robin/round_robin.h",
     "src/core/lib/client_config/lb_policy.h",
     "src/core/lib/client_config/lb_policy_factory.h",
     "src/core/lib/client_config/lb_policy_registry.h",
@@ -633,7 +633,7 @@ cc_library(
     "src/core/lib/json/json_common.h",
     "src/core/lib/json/json_reader.h",
     "src/core/lib/json/json_writer.h",
-    "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h",
+    "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h",
     "src/core/lib/statistics/census_interface.h",
     "src/core/lib/statistics/census_rpc_stats.h",
     "src/core/lib/surface/api_trace.h",
@@ -704,9 +704,9 @@ cc_library(
     "src/core/lib/client_config/connector.c",
     "src/core/lib/client_config/default_initial_connect_string.c",
     "src/core/lib/client_config/initial_connect_string.c",
-    "src/core/lib/client_config/lb_policies/load_balancer_api.c",
-    "src/core/lib/client_config/lb_policies/pick_first.c",
-    "src/core/lib/client_config/lb_policies/round_robin.c",
+    "src/core/ext/lb_policy/grpclb/load_balancer_api.c",
+    "src/core/ext/lb_policy/pick_first/pick_first.c",
+    "src/core/ext/lb_policy/round_robin/round_robin.c",
     "src/core/lib/client_config/lb_policy.c",
     "src/core/lib/client_config/lb_policy_factory.c",
     "src/core/lib/client_config/lb_policy_registry.c",
@@ -771,7 +771,7 @@ cc_library(
     "src/core/lib/json/json_reader.c",
     "src/core/lib/json/json_string.c",
     "src/core/lib/json/json_writer.c",
-    "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c",
+    "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.c",
     "src/core/lib/surface/alarm.c",
     "src/core/lib/surface/api_trace.c",
     "src/core/lib/surface/byte_buffer.c",
@@ -1407,9 +1407,9 @@ objc_library(
     "src/core/lib/client_config/connector.c",
     "src/core/lib/client_config/default_initial_connect_string.c",
     "src/core/lib/client_config/initial_connect_string.c",
-    "src/core/lib/client_config/lb_policies/load_balancer_api.c",
-    "src/core/lib/client_config/lb_policies/pick_first.c",
-    "src/core/lib/client_config/lb_policies/round_robin.c",
+    "src/core/ext/lb_policy/grpclb/load_balancer_api.c",
+    "src/core/ext/lb_policy/pick_first/pick_first.c",
+    "src/core/ext/lb_policy/round_robin/round_robin.c",
     "src/core/lib/client_config/lb_policy.c",
     "src/core/lib/client_config/lb_policy_factory.c",
     "src/core/lib/client_config/lb_policy_registry.c",
@@ -1475,7 +1475,7 @@ objc_library(
     "src/core/lib/json/json_reader.c",
     "src/core/lib/json/json_string.c",
     "src/core/lib/json/json_writer.c",
-    "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c",
+    "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.c",
     "src/core/lib/security/b64.c",
     "src/core/lib/security/client_auth_filter.c",
     "src/core/lib/security/credentials.c",
@@ -1578,9 +1578,9 @@ objc_library(
     "src/core/lib/client_config/client_config.h",
     "src/core/lib/client_config/connector.h",
     "src/core/lib/client_config/initial_connect_string.h",
-    "src/core/lib/client_config/lb_policies/load_balancer_api.h",
-    "src/core/lib/client_config/lb_policies/pick_first.h",
-    "src/core/lib/client_config/lb_policies/round_robin.h",
+    "src/core/ext/lb_policy/grpclb/load_balancer_api.h",
+    "src/core/ext/lb_policy/pick_first/pick_first.h",
+    "src/core/ext/lb_policy/round_robin/round_robin.h",
     "src/core/lib/client_config/lb_policy.h",
     "src/core/lib/client_config/lb_policy_factory.h",
     "src/core/lib/client_config/lb_policy_registry.h",
@@ -1640,7 +1640,7 @@ objc_library(
     "src/core/lib/json/json_common.h",
     "src/core/lib/json/json_reader.h",
     "src/core/lib/json/json_writer.h",
-    "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h",
+    "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h",
     "src/core/lib/security/auth_filters.h",
     "src/core/lib/security/b64.h",
     "src/core/lib/security/credentials.h",

Makefile

@@ -2467,9 +2467,9 @@ LIBGRPC_SRC = \
     src/core/lib/client_config/connector.c \
     src/core/lib/client_config/default_initial_connect_string.c \
     src/core/lib/client_config/initial_connect_string.c \
-    src/core/lib/client_config/lb_policies/load_balancer_api.c \
-    src/core/lib/client_config/lb_policies/pick_first.c \
-    src/core/lib/client_config/lb_policies/round_robin.c \
+    src/core/ext/lb_policy/grpclb/load_balancer_api.c \
+    src/core/ext/lb_policy/pick_first/pick_first.c \
+    src/core/ext/lb_policy/round_robin/round_robin.c \
     src/core/lib/client_config/lb_policy.c \
     src/core/lib/client_config/lb_policy_factory.c \
     src/core/lib/client_config/lb_policy_registry.c \
@@ -2535,7 +2535,7 @@ LIBGRPC_SRC = \
     src/core/lib/json/json_reader.c \
     src/core/lib/json/json_string.c \
     src/core/lib/json/json_writer.c \
-    src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c \
+    src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.c \
     src/core/lib/security/b64.c \
     src/core/lib/security/client_auth_filter.c \
     src/core/lib/security/credentials.c \
@@ -2826,9 +2826,9 @@ LIBGRPC_UNSECURE_SRC = \
     src/core/lib/client_config/connector.c \
     src/core/lib/client_config/default_initial_connect_string.c \
     src/core/lib/client_config/initial_connect_string.c \
-    src/core/lib/client_config/lb_policies/load_balancer_api.c \
-    src/core/lib/client_config/lb_policies/pick_first.c \
-    src/core/lib/client_config/lb_policies/round_robin.c \
+    src/core/ext/lb_policy/grpclb/load_balancer_api.c \
+    src/core/ext/lb_policy/pick_first/pick_first.c \
+    src/core/ext/lb_policy/round_robin/round_robin.c \
     src/core/lib/client_config/lb_policy.c \
     src/core/lib/client_config/lb_policy_factory.c \
     src/core/lib/client_config/lb_policy_registry.c \
@@ -2893,7 +2893,7 @@ LIBGRPC_UNSECURE_SRC = \
     src/core/lib/json/json_reader.c \
     src/core/lib/json/json_string.c \
     src/core/lib/json/json_writer.c \
-    src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c \
+    src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.c \
     src/core/lib/surface/alarm.c \
     src/core/lib/surface/api_trace.c \
     src/core/lib/surface/byte_buffer.c \

binding.gyp

@@ -605,9 +605,9 @@
         'src/core/lib/client_config/connector.c',
         'src/core/lib/client_config/default_initial_connect_string.c',
         'src/core/lib/client_config/initial_connect_string.c',
-        'src/core/lib/client_config/lb_policies/load_balancer_api.c',
-        'src/core/lib/client_config/lb_policies/pick_first.c',
-        'src/core/lib/client_config/lb_policies/round_robin.c',
+        'src/core/ext/lb_policy/grpclb/load_balancer_api.c',
+        'src/core/ext/lb_policy/pick_first/pick_first.c',
+        'src/core/ext/lb_policy/round_robin/round_robin.c',
         'src/core/lib/client_config/lb_policy.c',
         'src/core/lib/client_config/lb_policy_factory.c',
         'src/core/lib/client_config/lb_policy_registry.c',
@@ -673,7 +673,7 @@
         'src/core/lib/json/json_reader.c',
         'src/core/lib/json/json_string.c',
         'src/core/lib/json/json_writer.c',
-        'src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c',
+        'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.c',
         'src/core/lib/security/b64.c',
         'src/core/lib/security/client_auth_filter.c',
         'src/core/lib/security/credentials.c',

build.yaml

@@ -262,9 +262,9 @@ filegroups:
   - src/core/lib/client_config/client_config.h
   - src/core/lib/client_config/connector.h
   - src/core/lib/client_config/initial_connect_string.h
-  - src/core/lib/client_config/lb_policies/load_balancer_api.h
-  - src/core/lib/client_config/lb_policies/pick_first.h
-  - src/core/lib/client_config/lb_policies/round_robin.h
+  - src/core/ext/lb_policy/grpclb/load_balancer_api.h
+  - src/core/ext/lb_policy/pick_first/pick_first.h
+  - src/core/ext/lb_policy/round_robin/round_robin.h
   - src/core/lib/client_config/lb_policy.h
   - src/core/lib/client_config/lb_policy_factory.h
   - src/core/lib/client_config/lb_policy_registry.h
@@ -324,7 +324,7 @@ filegroups:
   - src/core/lib/json/json_common.h
   - src/core/lib/json/json_reader.h
   - src/core/lib/json/json_writer.h
-  - src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h
+  - src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h
   - src/core/lib/statistics/census_interface.h
   - src/core/lib/statistics/census_rpc_stats.h
   - src/core/lib/surface/api_trace.h
@@ -363,9 +363,9 @@ filegroups:
   - src/core/lib/client_config/connector.c
   - src/core/lib/client_config/default_initial_connect_string.c
   - src/core/lib/client_config/initial_connect_string.c
-  - src/core/lib/client_config/lb_policies/load_balancer_api.c
-  - src/core/lib/client_config/lb_policies/pick_first.c
-  - src/core/lib/client_config/lb_policies/round_robin.c
+  - src/core/ext/lb_policy/grpclb/load_balancer_api.c
+  - src/core/ext/lb_policy/pick_first/pick_first.c
+  - src/core/ext/lb_policy/round_robin/round_robin.c
   - src/core/lib/client_config/lb_policy.c
   - src/core/lib/client_config/lb_policy_factory.c
   - src/core/lib/client_config/lb_policy_registry.c
@@ -430,7 +430,7 @@ filegroups:
   - src/core/lib/json/json_reader.c
   - src/core/lib/json/json_string.c
   - src/core/lib/json/json_writer.c
-  - src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c
+  - src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.c
   - src/core/lib/surface/alarm.c
   - src/core/lib/surface/api_trace.c
   - src/core/lib/surface/byte_buffer.c

config.m4

@@ -127,9 +127,9 @@ if test "$PHP_GRPC" != "no"; then
     src/core/lib/client_config/connector.c \
     src/core/lib/client_config/default_initial_connect_string.c \
     src/core/lib/client_config/initial_connect_string.c \
-    src/core/lib/client_config/lb_policies/load_balancer_api.c \
-    src/core/lib/client_config/lb_policies/pick_first.c \
-    src/core/lib/client_config/lb_policies/round_robin.c \
+    src/core/ext/lb_policy/grpclb/load_balancer_api.c \
+    src/core/ext/lb_policy/pick_first/pick_first.c \
+    src/core/ext/lb_policy/round_robin/round_robin.c \
     src/core/lib/client_config/lb_policy.c \
     src/core/lib/client_config/lb_policy_factory.c \
     src/core/lib/client_config/lb_policy_registry.c \
@@ -195,7 +195,7 @@ if test "$PHP_GRPC" != "no"; then
     src/core/lib/json/json_reader.c \
     src/core/lib/json/json_string.c \
     src/core/lib/json/json_writer.c \
-    src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c \
+    src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.c \
     src/core/lib/security/b64.c \
     src/core/lib/security/client_auth_filter.c \
     src/core/lib/security/credentials.c \
@@ -562,7 +562,7 @@ if test "$PHP_GRPC" != "no"; then
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/iomgr)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/json)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/profiling)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/proto/grpc/lb/v0)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/security)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/support)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/surface)

gRPC.podspec

@@ -200,9 +200,9 @@ Pod::Spec.new do |s|
                       'src/core/lib/client_config/client_config.h',
                       'src/core/lib/client_config/connector.h',
                       'src/core/lib/client_config/initial_connect_string.h',
-                      'src/core/lib/client_config/lb_policies/load_balancer_api.h',
-                      'src/core/lib/client_config/lb_policies/pick_first.h',
-                      'src/core/lib/client_config/lb_policies/round_robin.h',
+                      'src/core/ext/lb_policy/grpclb/load_balancer_api.h',
+                      'src/core/ext/lb_policy/pick_first/pick_first.h',
+                      'src/core/ext/lb_policy/round_robin/round_robin.h',
                       'src/core/lib/client_config/lb_policy.h',
                       'src/core/lib/client_config/lb_policy_factory.h',
                       'src/core/lib/client_config/lb_policy_registry.h',
@@ -262,7 +262,7 @@ Pod::Spec.new do |s|
                       'src/core/lib/json/json_common.h',
                       'src/core/lib/json/json_reader.h',
                       'src/core/lib/json/json_writer.h',
-                      'src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h',
+                      'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h',
                       'src/core/lib/security/auth_filters.h',
                       'src/core/lib/security/b64.h',
                       'src/core/lib/security/credentials.h',
@@ -362,9 +362,9 @@ Pod::Spec.new do |s|
                       'src/core/lib/client_config/connector.c',
                       'src/core/lib/client_config/default_initial_connect_string.c',
                       'src/core/lib/client_config/initial_connect_string.c',
-                      'src/core/lib/client_config/lb_policies/load_balancer_api.c',
-                      'src/core/lib/client_config/lb_policies/pick_first.c',
-                      'src/core/lib/client_config/lb_policies/round_robin.c',
+                      'src/core/ext/lb_policy/grpclb/load_balancer_api.c',
+                      'src/core/ext/lb_policy/pick_first/pick_first.c',
+                      'src/core/ext/lb_policy/round_robin/round_robin.c',
                       'src/core/lib/client_config/lb_policy.c',
                       'src/core/lib/client_config/lb_policy_factory.c',
                       'src/core/lib/client_config/lb_policy_registry.c',
@@ -430,7 +430,7 @@ Pod::Spec.new do |s|
                       'src/core/lib/json/json_reader.c',
                       'src/core/lib/json/json_string.c',
                       'src/core/lib/json/json_writer.c',
-                      'src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c',
+                      'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.c',
                       'src/core/lib/security/b64.c',
                       'src/core/lib/security/client_auth_filter.c',
                       'src/core/lib/security/credentials.c',
@@ -531,9 +531,9 @@ Pod::Spec.new do |s|
                               'src/core/lib/client_config/client_config.h',
                               'src/core/lib/client_config/connector.h',
                               'src/core/lib/client_config/initial_connect_string.h',
-                              'src/core/lib/client_config/lb_policies/load_balancer_api.h',
-                              'src/core/lib/client_config/lb_policies/pick_first.h',
-                              'src/core/lib/client_config/lb_policies/round_robin.h',
+                              'src/core/ext/lb_policy/grpclb/load_balancer_api.h',
+                              'src/core/ext/lb_policy/pick_first/pick_first.h',
+                              'src/core/ext/lb_policy/round_robin/round_robin.h',
                               'src/core/lib/client_config/lb_policy.h',
                               'src/core/lib/client_config/lb_policy_factory.h',
                               'src/core/lib/client_config/lb_policy_registry.h',
@@ -593,7 +593,7 @@ Pod::Spec.new do |s|
                               'src/core/lib/json/json_common.h',
                               'src/core/lib/json/json_reader.h',
                               'src/core/lib/json/json_writer.h',
-                              'src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h',
+                              'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h',
                               'src/core/lib/security/auth_filters.h',
                               'src/core/lib/security/b64.h',
                               'src/core/lib/security/credentials.h',

grpc.gemspec

@@ -196,9 +196,9 @@ Gem::Specification.new do |s|
   s.files += %w( src/core/lib/client_config/client_config.h )
   s.files += %w( src/core/lib/client_config/connector.h )
   s.files += %w( src/core/lib/client_config/initial_connect_string.h )
-  s.files += %w( src/core/lib/client_config/lb_policies/load_balancer_api.h )
-  s.files += %w( src/core/lib/client_config/lb_policies/pick_first.h )
-  s.files += %w( src/core/lib/client_config/lb_policies/round_robin.h )
+  s.files += %w( src/core/ext/lb_policy/grpclb/load_balancer_api.h )
+  s.files += %w( src/core/ext/lb_policy/pick_first/pick_first.h )
+  s.files += %w( src/core/ext/lb_policy/round_robin/round_robin.h )
   s.files += %w( src/core/lib/client_config/lb_policy.h )
   s.files += %w( src/core/lib/client_config/lb_policy_factory.h )
   s.files += %w( src/core/lib/client_config/lb_policy_registry.h )
@@ -258,7 +258,7 @@ Gem::Specification.new do |s|
   s.files += %w( src/core/lib/json/json_common.h )
   s.files += %w( src/core/lib/json/json_reader.h )
   s.files += %w( src/core/lib/json/json_writer.h )
-  s.files += %w( src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h )
+  s.files += %w( src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h )
   s.files += %w( src/core/lib/security/auth_filters.h )
   s.files += %w( src/core/lib/security/b64.h )
   s.files += %w( src/core/lib/security/credentials.h )
@@ -345,9 +345,9 @@ Gem::Specification.new do |s|
   s.files += %w( src/core/lib/client_config/connector.c )
   s.files += %w( src/core/lib/client_config/default_initial_connect_string.c )
   s.files += %w( src/core/lib/client_config/initial_connect_string.c )
-  s.files += %w( src/core/lib/client_config/lb_policies/load_balancer_api.c )
-  s.files += %w( src/core/lib/client_config/lb_policies/pick_first.c )
-  s.files += %w( src/core/lib/client_config/lb_policies/round_robin.c )
+  s.files += %w( src/core/ext/lb_policy/grpclb/load_balancer_api.c )
+  s.files += %w( src/core/ext/lb_policy/pick_first/pick_first.c )
+  s.files += %w( src/core/ext/lb_policy/round_robin/round_robin.c )
   s.files += %w( src/core/lib/client_config/lb_policy.c )
   s.files += %w( src/core/lib/client_config/lb_policy_factory.c )
   s.files += %w( src/core/lib/client_config/lb_policy_registry.c )
@@ -413,7 +413,7 @@ Gem::Specification.new do |s|
   s.files += %w( src/core/lib/json/json_reader.c )
   s.files += %w( src/core/lib/json/json_string.c )
   s.files += %w( src/core/lib/json/json_writer.c )
-  s.files += %w( src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c )
+  s.files += %w( src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.c )
   s.files += %w( src/core/lib/security/b64.c )
   s.files += %w( src/core/lib/security/client_auth_filter.c )
   s.files += %w( src/core/lib/security/credentials.c )

package.json

@@ -138,9 +138,9 @@
     "src/core/lib/client_config/client_config.h",
     "src/core/lib/client_config/connector.h",
     "src/core/lib/client_config/initial_connect_string.h",
-    "src/core/lib/client_config/lb_policies/load_balancer_api.h",
-    "src/core/lib/client_config/lb_policies/pick_first.h",
-    "src/core/lib/client_config/lb_policies/round_robin.h",
+    "src/core/ext/lb_policy/grpclb/load_balancer_api.h",
+    "src/core/ext/lb_policy/pick_first/pick_first.h",
+    "src/core/ext/lb_policy/round_robin/round_robin.h",
     "src/core/lib/client_config/lb_policy.h",
     "src/core/lib/client_config/lb_policy_factory.h",
     "src/core/lib/client_config/lb_policy_registry.h",
@@ -200,7 +200,7 @@
     "src/core/lib/json/json_common.h",
     "src/core/lib/json/json_reader.h",
     "src/core/lib/json/json_writer.h",
-    "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h",
+    "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h",
     "src/core/lib/security/auth_filters.h",
     "src/core/lib/security/b64.h",
     "src/core/lib/security/credentials.h",
@@ -287,9 +287,9 @@
     "src/core/lib/client_config/connector.c",
     "src/core/lib/client_config/default_initial_connect_string.c",
     "src/core/lib/client_config/initial_connect_string.c",
-    "src/core/lib/client_config/lb_policies/load_balancer_api.c",
-    "src/core/lib/client_config/lb_policies/pick_first.c",
-    "src/core/lib/client_config/lb_policies/round_robin.c",
+    "src/core/ext/lb_policy/grpclb/load_balancer_api.c",
+    "src/core/ext/lb_policy/pick_first/pick_first.c",
+    "src/core/ext/lb_policy/round_robin/round_robin.c",
     "src/core/lib/client_config/lb_policy.c",
     "src/core/lib/client_config/lb_policy_factory.c",
     "src/core/lib/client_config/lb_policy_registry.c",
@@ -355,7 +355,7 @@
     "src/core/lib/json/json_reader.c",
     "src/core/lib/json/json_string.c",
     "src/core/lib/json/json_writer.c",
-    "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c",
+    "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.c",
     "src/core/lib/security/b64.c",
     "src/core/lib/security/client_auth_filter.c",
     "src/core/lib/security/credentials.c",

package.xml

@@ -200,9 +200,9 @@
     <file baseinstalldir="/" name="src/core/lib/client_config/client_config.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/client_config/connector.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/client_config/initial_connect_string.h" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/client_config/lb_policies/load_balancer_api.h" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/client_config/lb_policies/pick_first.h" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/client_config/lb_policies/round_robin.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/lb_policy/grpclb/load_balancer_api.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/lb_policy/pick_first/pick_first.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/lb_policy/round_robin/round_robin.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/client_config/lb_policy.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/client_config/lb_policy_factory.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/client_config/lb_policy_registry.h" role="src" />
@@ -262,7 +262,7 @@
     <file baseinstalldir="/" name="src/core/lib/json/json_common.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/json/json_reader.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/json/json_writer.h" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/security/auth_filters.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/security/b64.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/security/credentials.h" role="src" />
@@ -349,9 +349,9 @@
     <file baseinstalldir="/" name="src/core/lib/client_config/connector.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/client_config/default_initial_connect_string.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/client_config/initial_connect_string.c" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/client_config/lb_policies/load_balancer_api.c" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/client_config/lb_policies/pick_first.c" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/client_config/lb_policies/round_robin.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/lb_policy/grpclb/load_balancer_api.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/lb_policy/pick_first/pick_first.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/lb_policy/round_robin/round_robin.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/client_config/lb_policy.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/client_config/lb_policy_factory.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/client_config/lb_policy_registry.c" role="src" />
@@ -417,7 +417,7 @@
     <file baseinstalldir="/" name="src/core/lib/json/json_reader.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/json/json_string.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/json/json_writer.c" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/security/b64.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/security/client_auth_filter.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/security/credentials.c" role="src" />

src/core/lib/client_config/lb_policies/load_balancer_api.c → src/core/ext/lb_policy/grpclb/load_balancer_api.c

@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/lib/client_config/lb_policies/load_balancer_api.h"
+#include "src/core/ext/lb_policy/grpclb/load_balancer_api.h"
 #include "third_party/nanopb/pb_decode.h"
 #include "third_party/nanopb/pb_encode.h"
 

src/core/lib/client_config/lb_policies/load_balancer_api.h → src/core/ext/lb_policy/grpclb/load_balancer_api.h

@@ -37,7 +37,7 @@
 #include <grpc/support/slice_buffer.h>
 
 #include "src/core/lib/client_config/lb_policy_factory.h"
-#include "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h"
+#include "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h"
 
 #ifdef __cplusplus
 extern "C" {

src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c → src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.c

@@ -33,7 +33,7 @@
 /* Automatically generated nanopb constant definitions */
 /* Generated by nanopb-0.3.5-dev */
 
-#include "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h"
+#include "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h"
 
 #if PB_PROTO_HEADER_VERSION != 30
 #error Regenerate this file with the current version of nanopb generator.

src/core/lib/client_config/lb_policies/pick_first.c → src/core/ext/lb_policy/pick_first/pick_first.c

@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/lib/client_config/lb_policies/pick_first.h"
+#include "src/core/ext/lb_policy/pick_first/pick_first.h"
 #include "src/core/lib/client_config/lb_policy_factory.h"
 
 #include <string.h>

src/core/lib/client_config/lb_policies/round_robin.c → src/core/ext/lb_policy/round_robin/round_robin.c

@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/lib/client_config/lb_policies/round_robin.h"
+#include "src/core/ext/lb_policy/round_robin/round_robin.h"
 
 #include <string.h>
 

src/core/lib/surface/init.c

@@ -48,8 +48,8 @@
 #include "src/core/lib/channel/connected_channel.h"
 #include "src/core/lib/channel/http_client_filter.h"
 #include "src/core/lib/channel/http_server_filter.h"
-#include "src/core/lib/client_config/lb_policies/pick_first.h"
-#include "src/core/lib/client_config/lb_policies/round_robin.h"
+#include "src/core/ext/lb_policy/pick_first/pick_first.h"
+#include "src/core/ext/lb_policy/round_robin/round_robin.h"
 #include "src/core/lib/client_config/lb_policy_registry.h"
 #include "src/core/lib/client_config/resolver_registry.h"
 #include "src/core/lib/client_config/resolvers/dns_resolver.h"

src/python/grpcio/grpc_core_dependencies.py

@@ -121,9 +121,9 @@ CORE_SOURCE_FILES = [
   'src/core/lib/client_config/connector.c',
   'src/core/lib/client_config/default_initial_connect_string.c',
   'src/core/lib/client_config/initial_connect_string.c',
-  'src/core/lib/client_config/lb_policies/load_balancer_api.c',
-  'src/core/lib/client_config/lb_policies/pick_first.c',
-  'src/core/lib/client_config/lb_policies/round_robin.c',
+  'src/core/ext/lb_policy/grpclb/load_balancer_api.c',
+  'src/core/ext/lb_policy/pick_first/pick_first.c',
+  'src/core/ext/lb_policy/round_robin/round_robin.c',
   'src/core/lib/client_config/lb_policy.c',
   'src/core/lib/client_config/lb_policy_factory.c',
   'src/core/lib/client_config/lb_policy_registry.c',
@@ -189,7 +189,7 @@ CORE_SOURCE_FILES = [
   'src/core/lib/json/json_reader.c',
   'src/core/lib/json/json_string.c',
   'src/core/lib/json/json_writer.c',
-  'src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c',
+  'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.c',
   'src/core/lib/security/b64.c',
   'src/core/lib/security/client_auth_filter.c',
   'src/core/lib/security/credentials.c',

test/core/client_config/lb_policies_test.c

@@ -43,7 +43,7 @@
 
 #include "src/core/lib/channel/channel_stack.h"
 #include "src/core/lib/channel/client_channel.h"
-#include "src/core/lib/client_config/lb_policies/round_robin.h"
+#include "src/core/ext/lb_policy/round_robin/round_robin.h"
 #include "src/core/lib/client_config/lb_policy_registry.h"
 #include "src/core/lib/support/string.h"
 #include "src/core/lib/surface/channel.h"

test/cpp/grpclb/grpclb_api_test.cc

@@ -34,7 +34,7 @@
 #include <gtest/gtest.h>
 #include <string>
 
-#include "src/core/lib/client_config/lb_policies/load_balancer_api.h"
+#include "src/core/ext/lb_policy/grpclb/load_balancer_api.h"
 #include "src/proto/grpc/lb/v0/load_balancer.pb.h"  // C++ version
 
 namespace grpc {

tools/codegen/core/gen_load_balancing_proto.sh

@@ -82,7 +82,7 @@ fi
 
 readonly GRPC_ROOT=$PWD
 
-OUTPUT_DIR="$GRPC_ROOT/src/core/lib/proto/grpc/lb/v0"
+OUTPUT_DIR="$GRPC_ROOT/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0"
 if [ $# -eq 2 ]; then
   mkdir -p "$2"
   if [ $? != 0 ]; then
@@ -122,7 +122,7 @@ protoc \
 "$(basename $1)"
 
 readonly PROTO_BASENAME=$(basename $1 .proto)
-sed -i "s:$PROTO_BASENAME.pb.h:src/core/lib/proto/grpc/lb/v0/$PROTO_BASENAME.pb.h:g" \
+sed -i "s:$PROTO_BASENAME.pb.h:src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/$PROTO_BASENAME.pb.h:g" \
     "$OUTPUT_DIR/$PROTO_BASENAME.pb.c"
 
 # prepend copyright

tools/distrib/check_include_guards.py

@@ -167,7 +167,7 @@ argp.add_argument('--precommit',
 args = argp.parse_args()
 
 KNOWN_BAD = set([
-    'src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h',
+    'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h',
 ])
 
 

tools/distrib/check_nanopb_output.sh

@@ -60,7 +60,7 @@ PATH="$PROTOC_PATH:$PATH" ./tools/codegen/core/gen_load_balancing_proto.sh \
   $NANOPB_TMP_OUTPUT
 
 # compare outputs to checked compiled code
-if ! diff -r $NANOPB_TMP_OUTPUT src/core/lib/proto/grpc/lb/v0; then
-  echo "Outputs differ: $NANOPB_TMP_OUTPUT vs src/core/lib/proto/grpc/lb/v0"
+if ! diff -r $NANOPB_TMP_OUTPUT src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0; then
+  echo "Outputs differ: $NANOPB_TMP_OUTPUT vs src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0"
   exit 2
 fi

tools/doxygen/Doxyfile.core.internal

@@ -812,9 +812,9 @@ src/core/lib/channel/subchannel_call_holder.h \
 src/core/lib/client_config/client_config.h \
 src/core/lib/client_config/connector.h \
 src/core/lib/client_config/initial_connect_string.h \
-src/core/lib/client_config/lb_policies/load_balancer_api.h \
-src/core/lib/client_config/lb_policies/pick_first.h \
-src/core/lib/client_config/lb_policies/round_robin.h \
+src/core/ext/lb_policy/grpclb/load_balancer_api.h \
+src/core/ext/lb_policy/pick_first/pick_first.h \
+src/core/ext/lb_policy/round_robin/round_robin.h \
 src/core/lib/client_config/lb_policy.h \
 src/core/lib/client_config/lb_policy_factory.h \
 src/core/lib/client_config/lb_policy_registry.h \
@@ -874,7 +874,7 @@ src/core/lib/json/json.h \
 src/core/lib/json/json_common.h \
 src/core/lib/json/json_reader.h \
 src/core/lib/json/json_writer.h \
-src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h \
+src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h \
 src/core/lib/security/auth_filters.h \
 src/core/lib/security/b64.h \
 src/core/lib/security/credentials.h \
@@ -961,9 +961,9 @@ src/core/lib/client_config/client_config.c \
 src/core/lib/client_config/connector.c \
 src/core/lib/client_config/default_initial_connect_string.c \
 src/core/lib/client_config/initial_connect_string.c \
-src/core/lib/client_config/lb_policies/load_balancer_api.c \
-src/core/lib/client_config/lb_policies/pick_first.c \
-src/core/lib/client_config/lb_policies/round_robin.c \
+src/core/ext/lb_policy/grpclb/load_balancer_api.c \
+src/core/ext/lb_policy/pick_first/pick_first.c \
+src/core/ext/lb_policy/round_robin/round_robin.c \
 src/core/lib/client_config/lb_policy.c \
 src/core/lib/client_config/lb_policy_factory.c \
 src/core/lib/client_config/lb_policy_registry.c \
@@ -1029,7 +1029,7 @@ src/core/lib/json/json.c \
 src/core/lib/json/json_reader.c \
 src/core/lib/json/json_string.c \
 src/core/lib/json/json_writer.c \
-src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c \
+src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.c \
 src/core/lib/security/b64.c \
 src/core/lib/security/client_auth_filter.c \
 src/core/lib/security/credentials.c \

tools/run_tests/sources_and_headers.json

@@ -3963,9 +3963,9 @@
       "src/core/lib/client_config/client_config.h", 
       "src/core/lib/client_config/connector.h", 
       "src/core/lib/client_config/initial_connect_string.h", 
-      "src/core/lib/client_config/lb_policies/load_balancer_api.h", 
-      "src/core/lib/client_config/lb_policies/pick_first.h", 
-      "src/core/lib/client_config/lb_policies/round_robin.h", 
+      "src/core/ext/lb_policy/grpclb/load_balancer_api.h", 
+      "src/core/ext/lb_policy/pick_first/pick_first.h", 
+      "src/core/ext/lb_policy/round_robin/round_robin.h", 
       "src/core/lib/client_config/lb_policy.h", 
       "src/core/lib/client_config/lb_policy_factory.h", 
       "src/core/lib/client_config/lb_policy_registry.h", 
@@ -4025,7 +4025,7 @@
       "src/core/lib/json/json_common.h", 
       "src/core/lib/json/json_reader.h", 
       "src/core/lib/json/json_writer.h", 
-      "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h", 
+      "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h", 
       "src/core/lib/security/auth_filters.h", 
       "src/core/lib/security/b64.h", 
       "src/core/lib/security/credentials.h", 
@@ -4168,12 +4168,12 @@
       "src/core/lib/client_config/default_initial_connect_string.c", 
       "src/core/lib/client_config/initial_connect_string.c", 
       "src/core/lib/client_config/initial_connect_string.h", 
-      "src/core/lib/client_config/lb_policies/load_balancer_api.c", 
-      "src/core/lib/client_config/lb_policies/load_balancer_api.h", 
-      "src/core/lib/client_config/lb_policies/pick_first.c", 
-      "src/core/lib/client_config/lb_policies/pick_first.h", 
-      "src/core/lib/client_config/lb_policies/round_robin.c", 
-      "src/core/lib/client_config/lb_policies/round_robin.h", 
+      "src/core/ext/lb_policy/grpclb/load_balancer_api.c", 
+      "src/core/ext/lb_policy/grpclb/load_balancer_api.h", 
+      "src/core/ext/lb_policy/pick_first/pick_first.c", 
+      "src/core/ext/lb_policy/pick_first/pick_first.h", 
+      "src/core/ext/lb_policy/round_robin/round_robin.c", 
+      "src/core/ext/lb_policy/round_robin/round_robin.h", 
       "src/core/lib/client_config/lb_policy.c", 
       "src/core/lib/client_config/lb_policy.h", 
       "src/core/lib/client_config/lb_policy_factory.c", 
@@ -4298,8 +4298,8 @@
       "src/core/lib/json/json_string.c", 
       "src/core/lib/json/json_writer.c", 
       "src/core/lib/json/json_writer.h", 
-      "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c", 
-      "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h", 
+      "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.c", 
+      "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h", 
       "src/core/lib/security/auth_filters.h", 
       "src/core/lib/security/b64.c", 
       "src/core/lib/security/b64.h", 
@@ -4591,9 +4591,9 @@
       "src/core/lib/client_config/client_config.h", 
       "src/core/lib/client_config/connector.h", 
       "src/core/lib/client_config/initial_connect_string.h", 
-      "src/core/lib/client_config/lb_policies/load_balancer_api.h", 
-      "src/core/lib/client_config/lb_policies/pick_first.h", 
-      "src/core/lib/client_config/lb_policies/round_robin.h", 
+      "src/core/ext/lb_policy/grpclb/load_balancer_api.h", 
+      "src/core/ext/lb_policy/pick_first/pick_first.h", 
+      "src/core/ext/lb_policy/round_robin/round_robin.h", 
       "src/core/lib/client_config/lb_policy.h", 
       "src/core/lib/client_config/lb_policy_factory.h", 
       "src/core/lib/client_config/lb_policy_registry.h", 
@@ -4653,7 +4653,7 @@
       "src/core/lib/json/json_common.h", 
       "src/core/lib/json/json_reader.h", 
       "src/core/lib/json/json_writer.h", 
-      "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h", 
+      "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h", 
       "src/core/lib/statistics/census_interface.h", 
       "src/core/lib/statistics/census_rpc_stats.h", 
       "src/core/lib/surface/api_trace.h", 
@@ -4779,12 +4779,12 @@
       "src/core/lib/client_config/default_initial_connect_string.c", 
       "src/core/lib/client_config/initial_connect_string.c", 
       "src/core/lib/client_config/initial_connect_string.h", 
-      "src/core/lib/client_config/lb_policies/load_balancer_api.c", 
-      "src/core/lib/client_config/lb_policies/load_balancer_api.h", 
-      "src/core/lib/client_config/lb_policies/pick_first.c", 
-      "src/core/lib/client_config/lb_policies/pick_first.h", 
-      "src/core/lib/client_config/lb_policies/round_robin.c", 
-      "src/core/lib/client_config/lb_policies/round_robin.h", 
+      "src/core/ext/lb_policy/grpclb/load_balancer_api.c", 
+      "src/core/ext/lb_policy/grpclb/load_balancer_api.h", 
+      "src/core/ext/lb_policy/pick_first/pick_first.c", 
+      "src/core/ext/lb_policy/pick_first/pick_first.h", 
+      "src/core/ext/lb_policy/round_robin/round_robin.c", 
+      "src/core/ext/lb_policy/round_robin/round_robin.h", 
       "src/core/lib/client_config/lb_policy.c", 
       "src/core/lib/client_config/lb_policy.h", 
       "src/core/lib/client_config/lb_policy_factory.c", 
@@ -4908,8 +4908,8 @@
       "src/core/lib/json/json_string.c", 
       "src/core/lib/json/json_writer.c", 
       "src/core/lib/json/json_writer.h", 
-      "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c", 
-      "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h", 
+      "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.c", 
+      "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h", 
       "src/core/lib/statistics/census_interface.h", 
       "src/core/lib/statistics/census_rpc_stats.h", 
       "src/core/lib/surface/alarm.c",