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trace.go
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/
trace.go
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// Copyright 2020 Douyu
//
// 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 trace
import (
"context"
"github.com/douyu/jupiter/pkg/xlog"
"github.com/opentracing/opentracing-go"
"github.com/opentracing/opentracing-go/log"
)
var (
// String ...
String = log.String
)
// SetGlobalTracer ...
func SetGlobalTracer(tracer opentracing.Tracer) {
xlog.Info("set global tracer", xlog.FieldMod("trace"))
opentracing.SetGlobalTracer(tracer)
}
// Start ...
func StartSpanFromContext(ctx context.Context, op string, opts ...opentracing.StartSpanOption) (opentracing.Span, context.Context) {
return opentracing.StartSpanFromContext(ctx, op, opts...)
}
// SpanFromContext ...
func SpanFromContext(ctx context.Context) opentracing.Span {
return opentracing.SpanFromContext(ctx)
}