}

	// Test the function.
	targetg := trace.GoID(86)
	got := trace.RelatedGoroutinesV2(events, targetg)
	want := map[trace.GoID]struct{}{
		trace.GoID(86):  struct{}{}, // N.B. Result includes target.
		trace.GoID(71):  struct{}{},
		trace.GoID(25):  struct{}{},
		trace.GoID(122): struct{}{},
	}
	for goid := range got {
		if _, ok := want[goid]; ok {
			delete(want, goid)
		} else {

		Tasks:      s.tasks,
	}
}

// RelatedGoroutinesV2 finds a set of goroutines related to goroutine goid for v2 traces.
// The association is based on whether they have synchronized with each other in the Go
// scheduler (one has unblocked another).
func RelatedGoroutinesV2(events []Event, goid GoID) map[GoID]struct{} {
	// Process all the events, looking for transitions of goroutines

	case oldtrace.EvGoCreate:
		if it.preInit {
			it.createdPreInit[GoID(ev.Args[0])] = struct{}{}
			return Event{}, errSkip
		}
		mappedType = go122.EvGoCreate
	case oldtrace.EvGoStart:
		if it.preInit {
			mappedType = go122.EvGoStatus
			mappedArgs = timedEventArgs{ev.Args[0], ^uint64(0), uint64(go122.GoRunning)}
			delete(it.createdPreInit, GoID(ev.Args[0]))
		} else {
			mappedType = go122.EvGoStart
		}

			for ptr in SliceValue(gdb.parse_and_eval("'runtime.allgs'")):
				goids.append(int(ptr['goid']))
		else:
			goids = [int(gdb.parse_and_eval(goid_str))]

		for goid in goids:
			self.invoke_per_goid(goid, cmd)

	def invoke_per_goid(self, goid, cmd):
		pc, sp = find_goroutine(goid)
		if not pc:
			print("No such goroutine: ", goid)
			return
		pc = pc_to_int(pc)
		save_frame = gdb.selected_frame()

// If the id string is empty, returns nil without an error.
func pprofMatchingGoroutines(name string, t *parsedTrace) (map[trace.GoID][]interval, error) {
	res := make(map[trace.GoID][]interval)
	for _, g := range t.summary.Goroutines {
		if name != "" && g.Name != name {
			continue
		}
		endTime := g.EndTime
		if g.EndTime == 0 {

		resource uint64
		stack    trace.Stack
	}
}

// newGState constructs a new goroutine state for the goroutine
// identified by the provided ID.
func newGState[R resource](goID trace.GoID) *gState[R] {
	return &gState[R]{
		baseName:     fmt.Sprintf("G%d", goID),
		executing:    R(noResource),
		activeRanges: make(map[string]activeRange),
	}
}

// augmentName attempts to use stk to augment the name of the goroutine

	"log"
	"net/http"
	"slices"
	"sort"
	"strings"
	"time"
)

// GoroutinesHandlerFunc returns a HandlerFunc that serves list of goroutine groups.
func GoroutinesHandlerFunc(summaries map[trace.GoID]*trace.GoroutineSummary) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		// goroutineGroup describes a group of goroutines grouped by name.
		type goroutineGroup struct {

		if err != nil {
			return nil, err
		}
		goid := GoID(g)
		if g == 0 {
			goid = NoGoroutine
		}

		// Read the sample's stack.
		s, err := binary.ReadUvarint(r)
		if err != nil {
			return nil, err
		}

		// Add the sample to the slice.
		samples = append(samples, cpuSample{
			schedCtx: schedCtx{
				M: mid,
				P: pid,
				G: goid,
			},

	}
	tl.eventWriter(traceGoRunning, traceProcRunning).commit(ev, traceArg(newg.goid), tl.startPC(pc), tl.stack(2))
}

// GoStart emits a GoStart event.
//
// Must be called with a valid P.
func (tl traceLocker) GoStart() {
	gp := getg().m.curg
	pp := gp.m.p
	w := tl.eventWriter(traceGoRunnable, traceProcRunning)
	w = w.write(traceEvGoStart, traceArg(gp.goid), gp.trace.nextSeq(tl.gen))

type Validator struct {
	lastTs   trace.Time
	gs       map[trace.GoID]*goState
	ps       map[trace.ProcID]*procState
	ms       map[trace.ThreadID]*schedContext
	ranges   map[trace.ResourceID][]string
	tasks    map[trace.TaskID]string
	seenSync bool
	Go121    bool
}

type schedContext struct {
	M trace.ThreadID
	P trace.ProcID
	G trace.GoID
}

type goState struct {
	state   trace.GoState