update ceph source to reef 18.1.2

[ceph.git] / ceph / src / jaegertracing / opentelemetry-cpp / examples / simple / main.cc

diff --git a/ceph/src/jaegertracing/opentelemetry-cpp/examples/simple/main.cc b/ceph/src/jaegertracing/opentelemetry-cpp/examples/simple/main.cc
new file mode 100644 (file)
index 0000000..d022e5c
--- /dev/null
+++ b/ceph/src/jaegertracing/opentelemetry-cpp/examples/simple/main.cc
@@ -0,0 +1,41 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+#include "opentelemetry/sdk/trace/simple_processor.h"
+#include "opentelemetry/sdk/trace/tracer_provider.h"
+#include "opentelemetry/trace/provider.h"
+
+// Using an exporter that simply dumps span data to stdout.
+#ifdef BAZEL_BUILD
+#  include "examples/common/foo_library/foo_library.h"
+#else
+#  include "foo_library/foo_library.h"
+#endif
+#include "opentelemetry/exporters/ostream/span_exporter.h"
+
+namespace trace_api = opentelemetry::trace;
+namespace trace_sdk = opentelemetry::sdk::trace;
+namespace nostd     = opentelemetry::nostd;
+namespace
+{
+void initTracer()
+{
+  auto exporter = std::unique_ptr<trace_sdk::SpanExporter>(
+      new opentelemetry::exporter::trace::OStreamSpanExporter);
+  auto processor = std::unique_ptr<trace_sdk::SpanProcessor>(
+      new trace_sdk::SimpleSpanProcessor(std::move(exporter)));
+  auto provider = nostd::shared_ptr<trace_api::TracerProvider>(
+      new trace_sdk::TracerProvider(std::move(processor)));
+
+  // Set the global trace provider
+  trace_api::Provider::SetTracerProvider(provider);
+}
+}  // namespace
+
+int main()
+{
+  // Removing this line will leave the default noop TracerProvider in place.
+  initTracer();
+
+  foo_library();
+}