s = "true"
		}
		cache.PutBytes(cache.Default(), flagID, []byte(s))
	}

	b.flagCache[key] = supported
	return supported
}

// statString returns a string form of an os.FileInfo, for serializing and comparison.
func statString(info os.FileInfo) string {
	return fmt.Sprintf("stat %d %x %v %v\n", info.Size(), uint64(info.Mode()), info.ModTime(), info.IsDir())
}

	if p.NoEnvoy {
		return nil
	}
	if p.Context == nil {
		return p.checkEnvoyReadiness()
	}
	select {
	case <-p.Context.Done():
		return fmt.Errorf("server is not live, current state is: %s", StateString(Draining))
	default:
		return p.checkEnvoyReadiness()
	}
}

func (p *Probe) checkEnvoyReadiness() error {
	// If Envoy is ready at least once i.e. server state is LIVE and workers

		SetExitStatus(2)
		Exit()
	}
	return toolPath
}

// ToolPath returns the path at which we expect to find the named tool
// (for example, "vet"), and the error (if any) from statting that path.
func ToolPath(toolName string) (string, error) {
	toolPath := filepath.Join(build.ToolDir, toolName) + cfg.ToolExeSuffix()
	err := toolStatCache.Do(toolPath, func() error {
		_, err := os.Stat(toolPath)

		return result
	}

	counter.Open()

	if _, err := os.Stat(telemetry.Default.LocalDir()); err != nil {
		// There was a problem statting LocalDir, which is needed for both
		// crash monitoring and counter uploading. Most likely, there was an
		// error creating telemetry.LocalDir in the counter.Open call above.
		// Don't start the child.
		return result

	endState := stateAtPC{slots: make([]VarLoc, len(s.slots)), registers: make([][]SlotID, len(s.registers))}
	endState.reset(b.endState)
	return s.stateString(endState)
}

func (s *debugState) stateString(state stateAtPC) string {
	var strs []string
	for slotID, loc := range state.slots {
		if !loc.absent() {
			strs = append(strs, fmt.Sprintf("\t%v = %v\n", s.slots[slotID], s.LocString(loc)))

				} else if b, ok := progToBlock[p]; ok {
					s = b.String()
				} else {
					s = "   " // most value and branch strings are 2-3 characters long
				}
				fmt.Fprintf(fi, " %-6s\t%.5d %s\t%s\n", s, p.Pc, ssa.StmtString(p.Pos), p.InstructionString())
			}
			fi.Close()
		}
	}

	defframe(&s, e, f)

	f.HTMLWriter.Close()
	f.HTMLWriter = nil
}