readbyte       []byte   // buffer to hold decoding of readuint16 from utf16 to utf8
	readbyteOffset int      // readbyte[readOffset:] is yet to be consumed with file.Read

	// Semaphore signaled when file is closed.
	csema uint32

	skipSyncNotif bool

	// Whether this is a streaming descriptor, as opposed to a
	// packet-based descriptor like a UDP socket.
	IsStream bool

		// re-entrant use of the cache. The signal handler can also write inUse,
		// but will always restore its value, so we can use a regular increment
		// even if we get signaled in the middle of it.
		cache.inUse++
		if cache.inUse == 1 {
			for i := range cache.entries[ck] {
				// We check off first because we're more
				// likely to have multiple entries with

	// Client or serverside.
	side ws.State

	// Transport for outgoing connections.
	dialer ContextDialer
	header http.Header

	handleMsgWg sync.WaitGroup

	// connChange will be signaled whenever State has been updated, or at regular intervals.
	// Holding the lock allows safe reads of State, and guarantees that changes will be detected.
	connChange *sync.Cond
	handlers   *handlers

func (w WaitStatus) Stopped() bool { return false }

func (w WaitStatus) Continued() bool { return false }

func (w WaitStatus) StopSignal() Signal { return -1 }

func (w WaitStatus) Signaled() bool { return false }

func (w WaitStatus) TrapCause() int { return -1 }

// Timespec is an invented structure on Windows, but here for
// consistency with the syscall package for other operating systems.

func (w WaitStatus) Stopped() bool { return false }

func (w WaitStatus) Continued() bool { return false }

func (w WaitStatus) StopSignal() Signal { return -1 }

func (w WaitStatus) Signaled() bool { return false }

func (w WaitStatus) TrapCause() int { return -1 }

// Timespec is an invented structure on Windows, but here for
// consistency with the corresponding package for other operating systems.

// If you're not on the serve goroutine, use writeFrameFromHandler instead.
func (sc *http2serverConn) writeFrame(wr http2FrameWriteRequest) {
	sc.serveG.check()

	// If true, wr will not be written and wr.done will not be signaled.
	var ignoreWrite bool

	// We are not allowed to write frames on closed streams. RFC 7540 Section
	// 5.1.1 says: "An endpoint MUST NOT send frames other than PRIORITY on

		{"(WaitStatus).CoreDump", Method, 0},
		{"(WaitStatus).ExitStatus", Method, 0},
		{"(WaitStatus).Exited", Method, 0},
		{"(WaitStatus).Signal", Method, 0},
		{"(WaitStatus).Signaled", Method, 0},
		{"(WaitStatus).StopSignal", Method, 0},
		{"(WaitStatus).Stopped", Method, 0},
		{"(WaitStatus).TrapCause", Method, 0},
		{"AF_ALG", Const, 0},
		{"AF_APPLETALK", Const, 0},

pkg syscall, method (WaitStatus) ExitStatus() int
pkg syscall, method (WaitStatus) Exited() bool
pkg syscall, method (WaitStatus) Signal() Signal
pkg syscall, method (WaitStatus) Signaled() bool
pkg syscall, method (WaitStatus) StopSignal() Signal
pkg syscall, method (WaitStatus) Stopped() bool
pkg syscall, method (WaitStatus) TrapCause() int
pkg syscall, type Errno uintptr