// Verb for the filter call, empty if not supported. This verb is appended to the URLPrefix when issuing the filter call to extender.
	FilterVerb string
	// Verb for the preempt call, empty if not supported. This verb is appended to the URLPrefix when issuing the preempt call to extender.
	PreemptVerb string
	// Verb for the prioritize call, empty if not supported. This verb is appended to the URLPrefix when issuing the prioritize call to extender.

	}
	return n, e
}

// pread reads len(b) bytes from the File starting at byte offset off.
// It returns the number of bytes read and the error, if any.
// EOF is signaled by a zero count with err set to nil.
func (f *File) pread(b []byte, off int64) (n int, err error) {
	if err := f.readLock(); err != nil {
		return 0, err
	}
	defer f.readUnlock()
	n, e := fixCount(syscall.Pread(f.fd, b, off))

				semawakeup(mp)
				break
			}
		}
	}
	gp.m.mLockProfile.recordUnlock(l)
	gp.m.locks--
	if gp.m.locks < 0 {
		throw("runtime·unlock: lock count")
	}
	if gp.m.locks == 0 && gp.preempt { // restore the preemption request in case we've cleared it in newstack
		gp.stackguard0 = stackPreempt
	}
}

// One-time notifications.
func noteclear(n *note) {
	n.key = 0
}

				// as we are no longer performing P-local mark
				// work.
				//
				// However, since we cooperatively stop work
				// when gp.preempt is set, if we releasem in
				// the loop then the following call to gopark
				// would immediately preempt the G. This is
				// also safe, but inefficient: the G must
				// schedule again only to enter gopark and park
				// again. Thus, we defer the release until

		// isAsyncSafePoint must exclude this case.
		f := findfunc(gp.sched.pc)
		if !f.valid() {
			throw("preempt at unknown pc")
		}
		if f.flag&abi.FuncFlagSPWrite != 0 {
			println("runtime: unexpected SPWRITE function", funcname(f), "in async preempt")
			throw("preempt SPWRITE")
		}
	}

	// Transition from _Grunning to _Gscan|_Gpreempted. We can't

					return
				}
			}
		}()
	}
	<-done
	<-done
}

// The function is used to test preemption at split stack checks.
// Declaring a var avoids inlining at the call site.
var preempt = func() int {
	var a [128]int
	sum := 0
	for _, v := range a {
		sum += v
	}
	return sum
}

func TestPreemption(t *testing.T) {
	if runtime.GOARCH == "wasm" {

 *
 * <p>When this stream creates a temporary file, it restricts the file's permissions to the current
 * user or, in the case of Android, the current app. If that is not possible (as is the case under
 * the very old Android Ice Cream Sandwich release), then this stream throws an exception instead of
 * creating a file that would be more accessible. (This behavior is new in Guava 32.0.0. Previous

	// injection test code fire, because it runs in a signal handler
	// and may not have a P.
	//
	// We use 8 Ps so there's room for the debug call worker,
	// something that's trying to preempt the call worker, and the
	// goroutine that's trying to stop the call worker.
	ogomaxprocs := runtime.GOMAXPROCS(8)
	ogcpercent := debug.SetGCPercent(-1)
	runtime.GC()

	{0x7cc6102b, "If the enemy is within range, then so are you.", "adl\x01_\xe0\b\x1e"},
	{0x700318e7, "It's well we cannot hear the screams/That we create in others' dreams.", "adl\x01ۘ\f\x87"},
	{0x1e601747, "You remind me of a TV show, but that's all right: I watch it anyway.", "adl\x01\xcc}\v\x83"},
	{0xb55b0b09, "C is as portable as Stonehedge!!", "adl\x01,^\x05\xad"},

func Lstat(path string, stat *Stat_t) (err error) {
	return Fstatat(AT_FDCWD, path, stat, AT_SYMLINK_NOFOLLOW)
}

//sys	MemfdSecret(flags int) (fd int, err error)
//sys	Pause() (err error)
//sys	pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys	pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys	Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)