1 files changed, 62 insertions, 0 deletions
diff --git a/src/core/ext/filters/client_channel/client_channel_channelz.cc b/src/core/ext/filters/client_channel/client_channel_channelz.cc
new file mode 100644
index 0000000000..df78dd5932
--- /dev/null
+++ b/src/core/ext/filters/client_channel/client_channel_channelz.cc
@@ -0,0 +1,62 @@
+/*
+ *
+ * Copyright 2018 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.
+ *
+ */
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/ext/filters/client_channel/client_channel_channelz.h"
+#include "src/core/lib/gpr/useful.h"
+
+namespace grpc_core {
+namespace channelz {
+
+static void* client_channel_channelz_copy(void* p) { return p; }
+
+static void client_channel_channelz_destroy(void* p) {}
+
+static int client_channel_channelz_cmp(void* a, void* b) {
+  return GPR_ICMP(a, b);
+}
+
+static const grpc_arg_pointer_vtable client_channel_channelz_vtable = {
+    client_channel_channelz_copy, client_channel_channelz_destroy,
+    client_channel_channelz_cmp};
+
+bool ClientChannelNode::GetConnectivityState(grpc_connectivity_state* state) {
+  if (channel()) {
+    *state = grpc_channel_check_connectivity_state(channel(), false);
+  } else {
+    *state = GRPC_CHANNEL_SHUTDOWN;
+  }
+  return true;
+}
+
+grpc_arg ClientChannelNode::CreateArg() {
+  return grpc_channel_arg_pointer_create(
+      const_cast<char*>(GRPC_ARG_CHANNELZ_CHANNEL_NODE_CREATION_FUNC),
+      reinterpret_cast<void*>(MakeClientChannelNode),
+      &client_channel_channelz_vtable);
+}
+
+RefCountedPtr<ChannelNode> MakeClientChannelNode(
+    grpc_channel* channel, size_t channel_tracer_max_nodes) {
+  return RefCountedPtr<ChannelNode>(
+      New<ClientChannelNode>(channel, channel_tracer_max_nodes));
+}
+
+}  // namespace channelz
+}  // namespace grpc_core