1 files changed, 0 insertions, 78 deletions
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/debug.go b/vendor/github.com/openzipkin/zipkin-go-opentracing/debug.go
deleted file mode 100644
index 1ee00c8a6..000000000
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/debug.go
+++ /dev/null
@@ -1,78 +0,0 @@
-package zipkintracer
-
-import (
-	"bytes"
-	"fmt"
-	"runtime"
-	"strconv"
-	"sync"
-)
-
-const debugGoroutineIDTag = "_initial_goroutine"
-
-type errAssertionFailed struct {
-	span *spanImpl
-	msg  string
-}
-
-// Error implements the error interface.
-func (err *errAssertionFailed) Error() string {
-	return fmt.Sprintf("%s:\n%+v", err.msg, err.span)
-}
-
-func (s *spanImpl) Lock() {
-	s.Mutex.Lock()
-	s.maybeAssertSanityLocked()
-}
-
-func (s *spanImpl) maybeAssertSanityLocked() {
-	if s.tracer == nil {
-		s.Mutex.Unlock()
-		panic(&errAssertionFailed{span: s, msg: "span used after call to Finish()"})
-	}
-	if s.tracer.options.debugAssertSingleGoroutine {
-		startID := curGoroutineID()
-		curID, ok := s.raw.Tags[debugGoroutineIDTag].(uint64)
-		if !ok {
-			// This is likely invoked in the context of the SetTag which sets
-			// debugGoroutineTag.
-			return
-		}
-		if startID != curID {
-			s.Mutex.Unlock()
-			panic(&errAssertionFailed{
-				span: s,
-				msg:  fmt.Sprintf("span started on goroutine %d, but now running on %d", startID, curID),
-			})
-		}
-	}
-}
-
-var goroutineSpace = []byte("goroutine ")
-var littleBuf = sync.Pool{
-	New: func() interface{} {
-		buf := make([]byte, 64)
-		return &buf
-	},
-}
-
-// Credit to @bradfitz:
-// https://github.com/golang/net/blob/master/http2/gotrack.go#L51
-func curGoroutineID() uint64 {
-	bp := littleBuf.Get().(*[]byte)
-	defer littleBuf.Put(bp)
-	b := *bp
-	b = b[:runtime.Stack(b, false)]
-	// Parse the 4707 out of "goroutine 4707 ["
-	b = bytes.TrimPrefix(b, goroutineSpace)
-	i := bytes.IndexByte(b, ' ')
-	if i < 0 {
-		panic(fmt.Sprintf("No space found in %q", b))
-	}
-	b = b[:i]
-	n, err := strconv.ParseUint(string(b), 10, 64)
-	if err != nil {
-		panic(fmt.Sprintf("Failed to parse goroutine ID out of %q: %v", b, err))
-	}
-	return n
-}