swarm/network: measure time of messages in priority queue (#19250)

vendor/github.com/opentracing/opentracing-go/CHANGELOG.md

@@ -10,5 +10,5 @@ Changes by Version
 1.0.0 (2016-09-26)
 -------------------
 
-- This release implements OpenTracing Specification 1.0 (http://opentracing.io/spec)
+- This release implements OpenTracing Specification 1.0 (https://opentracing.io/spec)
 

vendor/github.com/opentracing/opentracing-go/Makefile

@@ -1,26 +1,15 @@
-PACKAGES := . ./mocktracer/... ./ext/...
-
 .DEFAULT_GOAL := test-and-lint
 
-.PHONE: test-and-lint
-
+.PHONY: test-and-lint
 test-and-lint: test lint
 
 .PHONY: test
 test:
 	go test -v -cover -race ./...
 
+.PHONY: cover
 cover:
-	@rm -rf cover-all.out
-	$(foreach pkg, $(PACKAGES), $(MAKE) cover-pkg PKG=$(pkg) || true;)
-	@grep mode: cover.out > coverage.out
-	@cat cover-all.out >> coverage.out
-	go tool cover -html=coverage.out -o cover.html
-	@rm -rf cover.out cover-all.out coverage.out
-
-cover-pkg:
-	go test -coverprofile cover.out $(PKG)
-	@grep -v mode: cover.out >> cover-all.out
+	go test -v -coverprofile=coverage.txt -covermode=atomic -race ./...
 
 .PHONY: lint
 lint:
@@ -29,4 +18,3 @@ lint:
 	@# Run again with magic to exit non-zero if golint outputs anything.
 	@! (golint ./... | read dummy)
 	go vet ./...
-

vendor/github.com/opentracing/opentracing-go/README.md

@@ -8,8 +8,8 @@ This package is a Go platform API for OpenTracing.
 ## Required Reading
 
 In order to understand the Go platform API, one must first be familiar with the
-[OpenTracing project](http://opentracing.io) and
-[terminology](http://opentracing.io/documentation/pages/spec.html) more specifically.
+[OpenTracing project](https://opentracing.io) and
+[terminology](https://opentracing.io/specification/) more specifically.
 
 ## API overview for those adding instrumentation
 

vendor/github.com/opentracing/opentracing-go/globaltracer.go

@@ -1,7 +1,12 @@
 package opentracing
 
+type registeredTracer struct {
+	tracer       Tracer
+	isRegistered bool
+}
+
 var (
-	globalTracer Tracer = NoopTracer{}
+	globalTracer = registeredTracer{NoopTracer{}, false}
 )
 
 // SetGlobalTracer sets the [singleton] opentracing.Tracer returned by
@@ -11,22 +16,27 @@ var (
 // Prior to calling `SetGlobalTracer`, any Spans started via the `StartSpan`
 // (etc) globals are noops.
 func SetGlobalTracer(tracer Tracer) {
-	globalTracer = tracer
+	globalTracer = registeredTracer{tracer, true}
 }
 
 // GlobalTracer returns the global singleton `Tracer` implementation.
 // Before `SetGlobalTracer()` is called, the `GlobalTracer()` is a noop
 // implementation that drops all data handed to it.
 func GlobalTracer() Tracer {
-	return globalTracer
+	return globalTracer.tracer
 }
 
 // StartSpan defers to `Tracer.StartSpan`. See `GlobalTracer()`.
 func StartSpan(operationName string, opts ...StartSpanOption) Span {
-	return globalTracer.StartSpan(operationName, opts...)
+	return globalTracer.tracer.StartSpan(operationName, opts...)
 }
 
 // InitGlobalTracer is deprecated. Please use SetGlobalTracer.
 func InitGlobalTracer(tracer Tracer) {
 	SetGlobalTracer(tracer)
 }
+
+// IsGlobalTracerRegistered returns a `bool` to indicate if a tracer has been globally registered
+func IsGlobalTracerRegistered() bool {
+	return globalTracer.isRegistered
+}

vendor/github.com/opentracing/opentracing-go/propagation.go

@@ -160,7 +160,7 @@ type HTTPHeadersCarrier http.Header
 // Set conforms to the TextMapWriter interface.
 func (c HTTPHeadersCarrier) Set(key, val string) {
 	h := http.Header(c)
-	h.Add(key, val)
+	h.Set(key, val)
 }
 
 // ForeachKey conforms to the TextMapReader interface.