go/mirko/trace.go

package mirko

import (
	"context"
	"fmt"

	"github.com/golang/glog"
	"golang.org/x/net/trace"
)

func TraceInfof(ctx context.Context, f string, args ...interface{}) {
	tr, ok := trace.FromContext(ctx)
	if !ok {
		fmtd := fmt.Sprintf(f, args...)
		glog.Infof("[no trace] %v", fmtd)
		return
	}
	tr.LazyPrintf(f, args...)
}

func TraceWarningf(ctx context.Context, f string, args ...interface{}) {
	glog.Warningf(f, args...)

	tr, ok := trace.FromContext(ctx)
	if ok {
		tr.LazyPrintf(f, args...)
	}
}

func TraceErrorf(ctx context.Context, f string, args ...interface{}) {
	glog.Errorf(f, args...)

	tr, ok := trace.FromContext(ctx)
	if ok {
		tr.LazyPrintf(f, args...)
	}
}