type CoverageMetaFileWriter struct {
	stab   stringtab.Writer
	mfname string
	w      *bufio.Writer
	tmp    []byte
	debug  bool
}

func NewCoverageMetaFileWriter(mfname string, w io.Writer) *CoverageMetaFileWriter {
	r := &CoverageMetaFileWriter{
		mfname: mfname,
		w:      bufio.NewWriter(w),
		tmp:    make([]byte, 64),
	}
	r.stab.InitWriter()
	r.stab.Lookup("")
	return r
}

// counter-data files.

// Writer implements a string table writing utility.
type Writer struct {
	stab   map[string]uint32
	strs   []string
	tmp    []byte
	frozen bool
}

// InitWriter initializes a stringtab.Writer.
func (stw *Writer) InitWriter() {
	stw.stab = make(map[string]uint32)
	stw.tmp = make([]byte, 64)
}

// Nentries returns the number of strings interned so far.

	var addrs []uint64
	for _, s := range f.macho.Symtab.Syms {
		// Skip stab debug info.
		if s.Type&stabTypeMask == 0 {
			addrs = append(addrs, s.Value)
		}
	}
	sort.Sort(uint64s(addrs))

	var syms []Sym
	for _, s := range f.macho.Symtab.Syms {
		if s.Type&stabTypeMask != 0 {
			// Skip stab debug info.
			continue
		}
		sym := Sym{Name: s.Name, Addr: s.Value, Code: '?'}

		return err
	}
	if nr != int(cdr.shdr.StrTabLen) {
		return fmt.Errorf("error: short read on string table")
	}
	slr := slicereader.NewReader(b, false /* not readonly */)
	cdr.stab = stringtab.NewReader(slr)
	cdr.stab.Read()
	return nil
}

func (cdr *CounterDataReader) readArgs() error {
	b := make([]byte, cdr.shdr.ArgsLen)
	nr, err := cdr.mr.Read(b)
	if err != nil {
		return err
	}

	if err = af.apply(so); err != nil {
		return err
	}

	sw.smu.Lock()
	defer sw.smu.Unlock()
	if so.Err != nil {
		sw.stats.getLocked(so.Cookie).CloseFailed++
		return so.Err
	}
	delete(sw.sotab, s)
	sw.stats.getLocked(so.Cookie).Closed++
	return nil
}

// Connect wraps syscall.Connect.
func (sw *Switch) Connect(s int, sa syscall.Sockaddr) (err error) {
	so := sw.sockso(s)
	if so == nil {

package mountinfo

import (
	"bufio"
	"fmt"
	"io"
	"os"
	"path/filepath"
	"strconv"
	"strings"
	"syscall"
)

const (
	// Number of fields per line in /proc/mounts as per the fstab man page.
	expectedNumFieldsPerLine = 6
	// Location of the mount file to use
	procMountsPath = "/proc/mounts"
)

// IsLikelyMountPoint determines if a directory is a mountpoint.

	if err = af.apply(so); err != nil {
		return err
	}

	sw.smu.Lock()
	defer sw.smu.Unlock()
	if so.Err != nil {
		sw.stats.getLocked(so.Cookie).CloseFailed++
		return so.Err
	}
	delete(sw.sotab, s)
	sw.stats.getLocked(so.Cookie).Closed++
	return nil
}

// Connect wraps [syscall.Connect].
func (sw *Switch) Connect(s syscall.Handle, sa syscall.Sockaddr) (err error) {
	so := sw.sockso(s)
	if so == nil {

	SXTAB_EQ:          "SXTAB.EQ",
	SXTAB_NE:          "SXTAB.NE",
	SXTAB_CS:          "SXTAB.CS",
	SXTAB_CC:          "SXTAB.CC",
	SXTAB_MI:          "SXTAB.MI",
	SXTAB_PL:          "SXTAB.PL",
	SXTAB_VS:          "SXTAB.VS",
	SXTAB_VC:          "SXTAB.VC",
	SXTAB_HI:          "SXTAB.HI",
	SXTAB_LS:          "SXTAB.LS",
	SXTAB_GE:          "SXTAB.GE",
	SXTAB_LT:          "SXTAB.LT",

}

var (
	escQuot = []byte(""") // shorter than """
	escApos = []byte("'") // shorter than "'"
	escAmp  = []byte("&")
	escLT   = []byte("<")
	escGT   = []byte(">")
	escTab  = []byte("	")
	escNL   = []byte("
")
	escCR   = []byte("
")
	escFFFD = []byte("\uFFFD") // Unicode replacement character
)

// EscapeText writes to w the properly escaped XML equivalent

	Xparmhash uint32 // Offset of parameter type-check string
	Xsnhash   uint16 // .typchk section number
	Xsmtyp    uint8  // Symbol alignment and type
	Xsmclas   uint8  // Storage-mapping class
	Xstab     uint32 // Reserved
	Xsnstab   uint16 // Reserved
}

type AuxCSect64 struct {
	Xscnlenlo uint32 // Lower 4 bytes of length or symbol table index
	Xparmhash uint32 // Offset of parameter type-check string