// See https://github.com/golang/go/issues/23795 or
	// https://issuetracker.google.com/issues/73230216.
	lockPath := filepath.Join(os.TempDir(), "go_android_exec-adb-lock")
	lock, err := os.OpenFile(lockPath, os.O_CREATE|os.O_RDWR, 0666)
	if err != nil {
		return 0, err
	}
	defer lock.Close()
	if err := syscall.Flock(int(lock.Fd()), syscall.LOCK_EX); err != nil {
		return 0, err
	}

		}
	}

	go w.listen()

	return w, nil
}

func newFile(path string) (*os.File, error) {
	return os.OpenFile(path, os.O_WRONLY|os.O_TRUNC|os.O_CREATE|os.O_SYNC, 0o666)

	//
	// The lock file is never deleted, to avoid concurrent locks on distinct
	// files with the same path.
	lockName := filepath.Join(os.TempDir(), "go_ios_exec-"+deviceID+".lock")
	lock, err = os.OpenFile(lockName, os.O_CREATE|os.O_RDONLY, 0666)
	if err != nil {
		return 1, err
	}
	if err := syscall.Flock(int(lock.Fd()), syscall.LOCK_EX); err != nil {
		return 1, err
	}

	err = runOnSimulator(appdir)
	if err != nil {

	// Create top level directories if they don't exist.
	// with mode 0o777 mkdir honors system umask.
	mkdirAll(pathutil.Dir(filePath), 0o777, s.drivePath) // don't need to fail here

	w, err := s.openFileDirect(filePath, os.O_CREATE|os.O_WRONLY|os.O_EXCL)
	if err != nil {
		return err
	}
	_, err = w.Write(alignedBuf)
	w.Close()
	if err != nil {
		if isSysErrInvalidArg(err) {
			err = errUnsupportedDisk
		}
	}

			extractedFilePath := filepath.Join(targetDir, file.Name)
			if file.FileInfo().IsDir() {
				return os.MkdirAll(extractedFilePath, file.Mode())
			}
			outputFile, err := os.OpenFile(extractedFilePath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, file.Mode())
			if err != nil {
				return err
			}
			defer outputFile.Close()
			_, err = io.Copy(outputFile, zippedFile)
			return err
		}()
		if err != nil {
			return err

pkg os (darwin-amd64-cgo), const O_EXCL = 2048
pkg os (darwin-amd64-cgo), const O_SYNC = 128
pkg os (darwin-amd64-cgo), const O_TRUNC = 1024
pkg os (darwin-amd64-cgo), const PathListSeparator = 58
pkg os (darwin-amd64-cgo), const PathSeparator = 47
pkg os (freebsd-386), const DevNull = "/dev/null"
pkg os (freebsd-386), const O_APPEND = 8
pkg os (freebsd-386), const O_CREATE = 512
pkg os (freebsd-386), const O_EXCL = 2048

pkg os, method (*PathError) Unwrap() error
pkg os, method (*SyscallError) Unwrap() error
pkg os (netbsd-arm64-cgo), const DevNull = "/dev/null"
pkg os (netbsd-arm64-cgo), const O_APPEND = 8
pkg os (netbsd-arm64-cgo), const O_CREATE = 512
pkg os (netbsd-arm64-cgo), const O_EXCL = 2048
pkg os (netbsd-arm64-cgo), const O_SYNC = 128
pkg os (netbsd-arm64-cgo), const O_TRUNC = 1024
pkg os (netbsd-arm64-cgo), const PathListSeparator = 58

pkg math/bits (freebsd-riscv64-cgo), const UintSize = 64 #53466
pkg os (freebsd-riscv64), const DevNull = "/dev/null" #53466
pkg os (freebsd-riscv64), const O_APPEND = 8 #53466
pkg os (freebsd-riscv64), const O_CREATE = 512 #53466
pkg os (freebsd-riscv64), const O_EXCL = 2048 #53466
pkg os (freebsd-riscv64), const O_SYNC = 128 #53466
pkg os (freebsd-riscv64), const O_TRUNC = 1024 #53466

pkg math/bits (freebsd-arm64-cgo), const UintSize = 64
pkg os (freebsd-arm64), const DevNull = "/dev/null"
pkg os (freebsd-arm64), const O_APPEND = 8
pkg os (freebsd-arm64), const O_CREATE = 512
pkg os (freebsd-arm64), const O_EXCL = 2048
pkg os (freebsd-arm64), const O_SYNC = 128
pkg os (freebsd-arm64), const O_TRUNC = 1024
pkg os (freebsd-arm64), const PathListSeparator = 58

pkg math/bits (darwin-arm64-cgo), const UintSize = 64
pkg os (darwin-arm64), const DevNull = "/dev/null"
pkg os (darwin-arm64), const O_APPEND = 8
pkg os (darwin-arm64), const O_CREATE = 512
pkg os (darwin-arm64), const O_EXCL = 2048
pkg os (darwin-arm64), const O_SYNC = 128
pkg os (darwin-arm64), const O_TRUNC = 1024
pkg os (darwin-arm64), const PathListSeparator = 58