feat: Waku v2 bridge

Issue #12610

vendor/github.com/anacrolix/missinggo/perf/scope.go

@@ -0,0 +1,39 @@
+package perf
+
+import (
+	"runtime"
+)
+
+func ScopeTimer(opts ...timerOpt) func() {
+	t := NewTimer(CallerName(1))
+	return func() { t.Mark("returned") }
+}
+
+func ScopeTimerOk(ok *bool) func() {
+	t := NewTimer(CallerName(1))
+	return func() { t.MarkOk(*ok) }
+}
+
+func ScopeTimerErr(err *error) func() {
+	t := NewTimer(CallerName(1))
+	return func() {
+		r := recover()
+		if r != nil {
+			t.Mark("panic")
+			panic(r)
+		}
+		t.MarkErr(*err)
+	}
+}
+
+func CallerName(skip int) timerOpt {
+	return Name(getCallerName(skip))
+}
+
+func getCallerName(skip int) string {
+	var pc [1]uintptr
+	runtime.Callers(3+skip, pc[:])
+	fs := runtime.CallersFrames(pc[:])
+	f, _ := fs.Next()
+	return f.Func.Name()
+}