// Copyright The OpenTelemetry Authors // SPDX-License-Identifier: Apache-2.0 // Make sure to include GRPC exporter first because otherwise Abseil may create // ambiguity with `nostd::variant`. See issue: // https://github.com/open-telemetry/opentelemetry-cpp/issues/880 #include "opentelemetry/exporters/otlp/otlp_grpc_exporter.h" #include "opentelemetry/sdk/trace/simple_processor.h" #include "opentelemetry/sdk/trace/tracer_provider.h" #include "opentelemetry/trace/provider.h" #ifdef BAZEL_BUILD # include "examples/common/foo_library/foo_library.h" #else # include "foo_library/foo_library.h" #endif namespace trace = opentelemetry::trace; namespace nostd = opentelemetry::nostd; namespace trace_sdk = opentelemetry::sdk::trace; namespace otlp = opentelemetry::exporter::otlp; namespace { opentelemetry::exporter::otlp::OtlpGrpcExporterOptions opts; void InitTracer() { // Create OTLP exporter instance auto exporter = std::unique_ptr(new otlp::OtlpGrpcExporter(opts)); auto processor = std::unique_ptr( new trace_sdk::SimpleSpanProcessor(std::move(exporter))); auto provider = nostd::shared_ptr(new trace_sdk::TracerProvider(std::move(processor))); // Set the global trace provider trace::Provider::SetTracerProvider(provider); } } // namespace int main(int argc, char *argv[]) { if (argc > 1) { opts.endpoint = argv[1]; if (argc > 2) { opts.use_ssl_credentials = true; opts.ssl_credentials_cacert_path = argv[2]; } } // Removing this line will leave the default noop TracerProvider in place. InitTracer(); foo_library(); }