// was in the process of shutting down.
				profilem(mp, thread)
			}
			stdcall1(_ResumeThread, thread)
			stdcall1(_CloseHandle, thread)
		}
	}
}

func setProcessCPUProfiler(hz int32) {
	if profiletimer == 0 {
		var timer uintptr
		if haveHighResTimer {
			timer = createHighResTimer()
		} else {
			timer = stdcall3(_CreateWaitableTimerA, 0, 0, 0)
		}

	// it would deadlock.
	setThreadCPUProfiler(0)

	for !prof.signalLock.CompareAndSwap(0, 1) {
		osyield()
	}
	if prof.hz.Load() != hz {
		setProcessCPUProfiler(hz)
		prof.hz.Store(hz)
	}
	prof.signalLock.Store(0)

	lock(&sched.lock)
	sched.profilehz = hz
	unlock(&sched.lock)

	if hz != 0 {
		setThreadCPUProfiler(hz)
	}