WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

// Package framer implements simple frame decoding techniques for an io.ReadCloser
package framer

import (
	"encoding/binary"
	"encoding/json"
	"io"
)

type lengthDelimitedFrameWriter struct {
	w io.Writer
	h [4]byte
}

	}, nil
}

// A Frame is the base interface implemented by all frame types.
// Callers will generally type-assert the specific frame type:
// *HeadersFrame, *SettingsFrame, *WindowUpdateFrame, etc.
//
// Frames are only valid until the next call to Framer.ReadFrame.
type http2Frame interface {
	Header() http2FrameHeader

	// invalidate is called by Framer.ReadFrame to make this

// SPDY connection.
//
// The stream tunnel proxy tunnels SPDY frames through a WebSocket
// connection, and it is used for the PortForward subprotocol (e.g.
// kubectl port-forward). This proxy implements tunneling by transparently
// encoding and decoding SPDY framed data into and out of the payload of a
// WebSocket data frame. The primary structure for this tunneling is

			}
		}
	}

	var frame stkframe
	frame.pc = pc0
	frame.sp = sp0
	if usesLR {
		frame.lr = lr0
	}

	// If the PC is zero, it's likely a nil function call.
	// Start in the caller's frame.
	if frame.pc == 0 {
		if usesLR {
			frame.pc = *(*uintptr)(unsafe.Pointer(frame.sp))
			frame.lr = 0
		} else {
			frame.pc = *(*uintptr)(unsafe.Pointer(frame.sp))
			frame.sp += goarch.PtrSize
		}

		w.byte(byte(traceEvStacks))
	}

	// Emit stack event.
	w.byte(byte(traceEvStack))
	w.varint(uint64(node.id))
	w.varint(uint64(len(frames)))
	for _, frame := range frames {
		w.varint(uint64(frame.PC))
		w.varint(frame.funcID)
		w.varint(frame.fileID)
		w.varint(frame.line)
	}

	// Recursively walk all child nodes.
	for i := range node.children {
		child := node.children[i].Load()
		if child == nil {

	"internal/trace"
	"internal/trace/traceviewer"
	"time"
)

// viewerFrames returns the frames of the stack of ev. The given frame slice is
// used to store the frames to reduce allocations.
func viewerFrames(stk trace.Stack) []*trace.Frame {
	var frames []*trace.Frame
	stk.Frames(func(f trace.StackFrame) bool {
		frames = append(frames, &trace.Frame{
			PC:   f.PC,
			Fn:   f.Func,
			File: f.File,
			Line: int(f.Line),
		})

	switch len(ci.frames) {
	case 0: // In the rare case when there are no frames at all, we return Frame{}.
		return
	case 1:
		frame = ci.frames[0]
		ci.frames = ci.frameStore[:0]
	case 2:
		frame = ci.frames[0]
		ci.frameStore[0] = ci.frames[1]
		ci.frames = ci.frameStore[:1]
	default:
		frame = ci.frames[0]
		ci.frames = ci.frames[1:]
	}
	more = len(ci.frames) > 0
	if frame.funcInfo.valid() {

	strings *dataTable[stringID, string],
	frames map[uint64]frame,
) error {
	var err error
	stacks.forEach(func(id stackID, stk stack) bool {
		for _, pc := range stk.pcs {
			frame, ok := frames[pc]
			if !ok {
				err = fmt.Errorf("found unknown pc %x for stack %d", pc, id)
				return false
			}
			_, ok = strings.get(frame.funcID)
			if !ok {

        if (closed) return
        outFinished = errorCode == null
      }
      if (!sink.finished) {
        // We have 0 or more frames of data, and 0 or more frames of trailers. We need to send at
        // least one frame with the END_STREAM flag set. That must be the last frame, and the
        // trailers must be sent after all of the data.
        val hasData = sendBuffer.size > 0L
        val hasTrailers = trailers != null

				totalTraceSamples++
				if hogRegion != nil && ev.Goroutine() == hogRegion.Goroutine() {
					traceSamples++
					var fns []string
					ev.Stack().Frames(func(frame trace.StackFrame) bool {
						if frame.Func != "runtime.goexit" {
							fns = append(fns, fmt.Sprintf("%s:%d", frame.Func, frame.Line))
						}
						return true
					})
					stack := strings.Join(fns, "|")
					traceStacks[stack]++
				}
			}