1 files changed, 55 insertions, 0 deletions
diff --git a/src/core/ext/census/tracing.cc b/src/core/ext/census/tracing.cc
new file mode 100644
index 0000000000..823c681abf
--- /dev/null
+++ b/src/core/ext/census/tracing.cc
@@ -0,0 +1,55 @@
+/*
+ *
+ * Copyright 2016 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 "src/core/ext/census/tracing.h"
+
+#include <grpc/census.h>
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include "src/core/ext/census/mlog.h"
+
+void trace_start_span(const trace_span_context *span_ctxt,
+                      const trace_string name, const start_span_options *opts,
+                      trace_span_context *new_span_ctxt,
+                      bool has_remote_parent) {
+  // Noop implementation.
+}
+
+void trace_add_span_annotation(const trace_string description,
+                               const trace_label *labels, const size_t n_labels,
+                               trace_span_context *span_ctxt) {
+  // Noop implementation.
+}
+
+void trace_add_span_network_event_annotation(const trace_string description,
+                                             const trace_label *labels,
+                                             const size_t n_labels,
+                                             const gpr_timespec timestamp,
+                                             bool sent, uint64_t id,
+                                             trace_span_context *span_ctxt) {
+  // Noop implementation.
+}
+
+void trace_add_span_labels(const trace_label *labels, const size_t n_labels,
+                           trace_span_context *span_ctxt) {
+  // Noop implementation.
+}
+
+void trace_end_span(const trace_status *status, trace_span_context *span_ctxt) {
+  // Noop implementation.
+}