}

func (r *RingBuffer) write(p []byte) (n int, err error) {
	if r.isFull {
		return 0, ErrIsFull
	}

	var avail int
	if r.w >= r.r {
		avail = r.size - r.w + r.r
	} else {
		avail = r.r - r.w
	}

	if len(p) > avail {
		err = ErrTooMuchDataToWrite
		p = p[:avail]
	}
	n = len(p)

	if r.w >= r.r {
		c1 := r.size - r.w
		if c1 >= n {
			copy(r.buf[r.w:], p)
			r.w += n

  function fitText(t, avail, textList) {
    // Find first entry in textList that fits.
    let width = avail;
    textContext.font = FONT_SIZE + 'pt Arial';
    for (let i = 0; i < textList.length; i++) {
      let text = textList[i];
      width = textContext.measureText(text).width;
      if (width <= avail) {
        t.innerText = text;
        return;
      }
    }

				rt.name,
				rt.expectedError,
				(output != nil),
			)
		}
	}
}

func TestFileAvailableCheck(t *testing.T) {
	f, err := os.CreateTemp("", "file-avail-check")
	if err != nil {
		t.Fatalf("Failed to create file: %v", err)
	}
	defer utiltesting.CloseAndRemove(t, f)
	var tests = []struct {
		name          string
		check         FileAvailableCheck

	// current stack. The currently used stack includes everything
	// down to the SP plus the stack guard space that ensures
	// there's room for nosplit functions.
	avail := gp.stack.hi - gp.stack.lo
	if used := gp.stack.hi - gp.sched.sp + stackNosplit; used >= avail/4 {
		return
	}

	if stackDebug > 0 {
		print("shrinking stack ", oldsize, "->", newsize, "\n")
	}

	copystack(gp, newsize)
}

// It reports whether both windows have available capacity.
func http2takeInflows(f1, f2 *http2inflow, n uint32) bool {
	if n > uint32(f1.avail) || n > uint32(f2.avail) {
		return false
	}
	f1.avail -= int32(n)
	f2.avail -= int32(n)
	return true
}

// outflow is the outbound flow control window's size.
type http2outflow struct {
	_ http2incomparable

		if zinfo == nil {
			serverPools[i] = poolAvailableSpace{Index: i}
			continue
		}
		var available uint64
		if !isMinioMetaBucketName(bucket) {
			if avail, err := hasSpaceFor(zinfo, size); err != nil || !avail {
				serverPools[i] = poolAvailableSpace{Index: i}
				continue
			}
		}
		var maxUsedPct int
		for _, disk := range zinfo {
			if disk == nil || disk.Total == 0 {
				continue

	vsize := v + size
	for voff := v; voff < vsize; voff = voff + chunkBytes {
		if getg().preempt {
			// may hold locks, e.g., profiling
			goschedguarded()
		}
		// clear min(avail, lump) bytes
		n := vsize - voff
		if n > chunkBytes {
			n = chunkBytes
		}
		memclrNoHeapPointers(unsafe.Pointer(voff), n)
	}
}

// implementation of new builtin

	ID          [4]byte
	Len         int32
	Bsize       uint64
	Blocks      uint64
	Usedspace   uint64
	Bavail      uint64
	Flag        uint64
	Maxfilesize int64
	_           [16]byte
	Frsize      uint64
	Bfree       uint64
	Files       uint32
	Ffree       uint32
	Favail      uint32
	Namemax31   uint32
	Invarsec    uint32
	_           [4]byte
	Fsid        uint64
	Namemax     uint64
}

		a, b := aVal.Bool(), bVal.Bool()
		switch {
		case a == b:
			return 0
		case a:
			return 1
		default:
			return -1
		}
	case reflect.Pointer, reflect.UnsafePointer:
		return cmp.Compare(aVal.Pointer(), bVal.Pointer())
	case reflect.Chan:
		if c, ok := nilCompare(aVal, bVal); ok {
			return c
		}
		return cmp.Compare(aVal.Pointer(), bVal.Pointer())
	case reflect.Struct:

	Cylinders uint16
	Start     uint64
}

type Statfs_t struct {
	Type    int64
	Bsize   int64
	Frsize  int64
	Blocks  uint64
	Bfree   uint64
	Files   uint64
	Ffree   uint64
	Bavail  uint64
	Fsid    Fsid
	Namelen int64
	Flags   int64
	Spare   [5]int64
}

type TpacketHdr struct {
	Status  uint64
	Len     uint32
	Snaplen uint32
	Mac     uint16
	Net     uint16