return time.Since(start).Seconds()
}

type gRPCError interface {
	GRPCStatus() *status.Status
}

func getErrorCode(err error) string {
	if err == nil {
		return codes.OK.String()
	}

	// handle errors wrapped with fmt.Errorf and similar
	var s gRPCError
	if errors.As(err, &s) {
		return s.GRPCStatus().Code().String()
	}

			return true
		}
		if s.Code() == codes.Unavailable && containsExpectedMessage(s.Message()) {
			return true
		}
	}
	// If this is not a gRPCStatus we should just error message.
	if strings.Contains(err.Error(), "stream terminated by RST_STREAM with error code: NO_ERROR") {
		return true
	}
	if strings.Contains(err.Error(), "received prior goaway: code: NO_ERROR") {

ProcStatus dt=1 p=8 pstatus=2
ProcStatus dt=1 p=9 pstatus=2
ProcStatus dt=1 p=10 pstatus=2
ProcStatus dt=1 p=11 pstatus=2
ProcStatus dt=1 p=12 pstatus=2
ProcStatus dt=1 p=13 pstatus=2
ProcStatus dt=1 p=14 pstatus=2
ProcStatus dt=1 p=15 pstatus=2
ProcStatus dt=1 p=16 pstatus=2
ProcStatus dt=1 p=17 pstatus=2
ProcStatus dt=1 p=18 pstatus=2
ProcStatus dt=1 p=19 pstatus=2
ProcStatus dt=1 p=20 pstatus=2
ProcStatus dt=1 p=21 pstatus=2

-- expect --
SUCCESS
-- trace --
Trace Go1.22
EventBatch gen=1 m=0 time=0 size=23
ProcStatus dt=1 p=1 pstatus=2
ProcStatus dt=1 p=0 pstatus=1
GoStatus dt=1 g=1 m=0 gstatus=2
GoSyscallBegin dt=1 p_seq=1 stack=0
ProcStart dt=1 p=1 p_seq=1
GoSyscallEndBlocked dt=1
EventBatch gen=1 m=1 time=0 size=14
ProcStatus dt=1 p=2 pstatus=1
GoStatus dt=1 g=2 m=1 gstatus=2
ProcSteal dt=1 p=0 p_seq=2 m=0
EventBatch gen=1 m=18446744073709551615 time=0 size=5

-- expect --
SUCCESS
-- trace --
Trace Go1.22
EventBatch gen=1 m=0 time=0 size=11
ProcStatus dt=1 p=1 pstatus=1
GoStatus dt=1 g=1 m=0 gstatus=3
GoSyscallEndBlocked dt=1
EventBatch gen=1 m=1 time=0 size=18
ProcStatus dt=1 p=2 pstatus=1
GoStatus dt=1 g=2 m=1 gstatus=2
ProcStatus dt=1 p=0 pstatus=4
ProcSteal dt=1 p=0 p_seq=1 m=0
EventBatch gen=1 m=18446744073709551615 time=0 size=5
Frequency freq=15625000

}

func gen(t *testgen.Trace) {
	g := t.Generation(1)

	// One goroutine enters a syscall, grabs a P, and starts running.
	b0 := g.Batch(trace.ThreadID(0), 0)
	b0.Event("ProcStatus", trace.ProcID(1), go122.ProcIdle)
	b0.Event("ProcStatus", trace.ProcID(0), go122.ProcRunning)
	b0.Event("GoStatus", trace.GoID(1), trace.ThreadID(0), go122.GoRunning)
	b0.Event("GoSyscallBegin", testgen.Seq(1), testgen.NoStack)

	// acquired a new P.
	b0 := g.Batch(trace.ThreadID(0), 0)
	b0.Event("ProcStatus", trace.ProcID(1), go122.ProcRunning)
	b0.Event("GoStatus", trace.GoID(1), trace.ThreadID(0), go122.GoSyscall)
	b0.Event("GoSyscallEndBlocked")

	// A running goroutine stole P0 at the generation boundary.
	b1 := g.Batch(trace.ThreadID(1), 0)
	b1.Event("ProcStatus", trace.ProcID(2), go122.ProcRunning)

	b0.Event("GoStatus", trace.GoID(1), trace.ThreadID(0), go122.GoSyscall)
	b0.Event("ProcStatus", trace.ProcID(1), go122.ProcIdle)
	b0.Event("ProcStart", trace.ProcID(1), testgen.Seq(1))
	b0.Event("GoSyscallEndBlocked")

	// A running goroutine stole P0 at the generation boundary.
	b1 := g.Batch(trace.ThreadID(1), 0)
	b1.Event("ProcStatus", trace.ProcID(2), go122.ProcRunning)

	// A running goroutine blocks.
	b10 := g1.Batch(trace.ThreadID(0), 0)
	b10.Event("ProcStatus", trace.ProcID(0), go122.ProcRunning)
	b10.Event("GoStatus", trace.GoID(1), trace.ThreadID(0), go122.GoRunning)
	b10.Event("GoStop", "whatever", testgen.NoStack)

	// The running goroutine gets unblocked.
	b11 := g1.Batch(trace.ThreadID(1), 0)
	b11.Event("ProcStatus", trace.ProcID(1), go122.ProcRunning)
	b11.Event("GoStart", trace.GoID(1), testgen.Seq(1))

	connStats := globalConnStats.toServerConnStats()
	rpcStats := rest.GetRPCStats()
	if globalIsDistErasure {
		m.Set(internodeErrorsTotal, float64(rpcStats.Errs))
		m.Set(internodeDialErrorsTotal, float64(rpcStats.DialErrs))
		m.Set(internodeDialAvgTimeNanos, float64(rpcStats.DialAvgDuration))
		m.Set(internodeSentBytesTotal, float64(connStats.internodeOutputBytes))