1 files changed, 38 insertions, 0 deletions
diff --git a/src/core/ext/filters/census/grpc_context.cc b/src/core/ext/filters/census/grpc_context.cc
new file mode 100644
index 0000000000..599a798dda
--- /dev/null
+++ b/src/core/ext/filters/census/grpc_context.cc
@@ -0,0 +1,38 @@
+/*
+ *
+ * Copyright 2015 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 <grpc/census.h>
+#include <grpc/grpc.h>
+#include "src/core/lib/surface/api_trace.h"
+#include "src/core/lib/surface/call.h"
+
+void grpc_census_call_set_context(grpc_call* call, census_context* context) {
+  GRPC_API_TRACE("grpc_census_call_set_context(call=%p, census_context=%p)", 2,
+                 (call, context));
+  if (context != nullptr) {
+    grpc_call_context_set(call, GRPC_CONTEXT_TRACING, context, nullptr);
+  }
+}
+
+census_context* grpc_census_call_get_context(grpc_call* call) {
+  GRPC_API_TRACE("grpc_census_call_get_context(call=%p)", 1, (call));
+  return static_cast<census_context*>(
+      grpc_call_context_get(call, GRPC_CONTEXT_TRACING));
+}