enable to update span's operation name (#90)

Co-authored-by: 吴晟 Wu Sheng <[email protected]>

Author: Shikugawa

cpp2sky/tracing_context.h

@@ -174,6 +174,11 @@ class TracingSpan {
    */
   virtual void setComponentId(int32_t component_id) = 0;
 
+  /**
+   * Set operation name.
+   */
+  virtual void setOperationName(std::string_view operation_name) = 0;
+
   /**
    * This span had finished or not.
    */

source/tracing_context_impl.cc

@@ -144,6 +144,11 @@ void TracingSpanImpl::setComponentId(int32_t component_id) {
   component_id_ = component_id;
 }
 
+void TracingSpanImpl::setOperationName(std::string_view name) {
+  assert(!finished_);
+  operation_name_ = name;
+}
+
 TracingContextImpl::TracingContextImpl(const std::string& service_name,
                                        const std::string& instance_name,
                                        RandomGenerator& random)

source/tracing_context_impl.h

@@ -85,6 +85,7 @@ class TracingSpanImpl : public TracingSpan {
   void addLog(std::string_view key, std::string_view value,
               TimePoint<SteadyTime> current_time) override;
   void setComponentId(int32_t component_id) override;
+  void setOperationName(std::string_view name) override;
 
  private:
   // Based on

test/tracing_context_test.cc

@@ -145,6 +145,7 @@ TEST_F(TracingContextTest, ChildSegmentContext) {
 
   span->startSpan("sample1", t1);
   span->setPeer("localhost:9000");
+  span->setOperationName("sample11");
   span->endSpan(t2);
 
   std::string json = R"EOF(
@@ -168,7 +169,7 @@ TEST_F(TracingContextTest, ChildSegmentContext) {
     "spanLayer": "Http",
     "componentId": "9000",
     "skipAnalysis": "false",
-    "operationName": "sample1",
+    "operationName": "sample11",
   }
   )EOF";
   skywalking::v3::SpanObject expected_obj;