压缩历史至 95081aff

internal/otel_trace/trace.go

@@ -0,0 +1,55 @@
+/*
+Copyright 2025 linux.do
+
+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.
+*/
+
+package otel_trace
+
+import (
+	"context"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/trace"
+	"log"
+)
+
+var Tracer trace.Tracer
+var shutdownFuncs []func(context.Context) error
+
+func init() {
+	// 初始化 Propagator
+	prop := newPropagator()
+	otel.SetTextMapPropagator(prop)
+
+	// 初始化 Trace Provider
+	tracerProvider, err := newTracerProvider()
+	if err != nil {
+		log.Fatalf("[Trace] init trace provider failed: %v", err)
+	}
+	shutdownFuncs = append(shutdownFuncs, tracerProvider.Shutdown)
+	otel.SetTracerProvider(tracerProvider)
+
+	// 初始化 Tracer
+	Tracer = tracerProvider.Tracer("github.com/linux-do/credit")
+}
+
+func Shutdown(ctx context.Context) {
+	for _, fn := range shutdownFuncs {
+		_ = fn(ctx)
+	}
+	shutdownFuncs = nil
+}
+
+func Start(ctx context.Context, name string, opts ...trace.SpanStartOption) (context.Context, trace.Span) {
+	return Tracer.Start(ctx, name, opts...)
+}