package disk

import (
	"errors"
	"fmt"

	"golang.org/x/sys/unix"
)

// GetInfo returns total and free bytes available in a directory, e.g. `/`.
func GetInfo(path string, _ bool) (info Info, err error) {
	s := unix.Statvfs_t{}
	if err = unix.Statvfs(path, &s); err != nil {
		return Info{}, err
	}
	reservedBlocks := uint64(s.Bfree) - uint64(s.Bavail)
	info = Info{

}

// DisableDirectIO - disables directio mode.
func DisableDirectIO(f *os.File) error {
	fd := f.Fd()
	flag, err := unix.FcntlInt(fd, unix.F_GETFL, 0)
	if err != nil {
		return err
	}
	flag &= ^(syscall.O_DIRECT)
	_, err = unix.FcntlInt(fd, unix.F_SETFL, flag)
	return err
}

// AlignedBlock - pass through to directio implementation.
func AlignedBlock(blockSize int) []byte {

        // Note: When encoding time 0, SMBUtil.writeTime writes 0 directly,
        // but SMBUtil.readTime interprets 0 as Jan 1, 1601 in Unix time (-11644473600000)
        // This is the expected behavior for Windows FILETIME
        long expectedTime = -11644473600000L; // Jan 1, 1601 in Unix time
        assertEquals(expectedTime, decoded.getCreateTime());
        assertEquals(expectedTime, decoded.getLastAccessTime());

	return directio.OpenFile(filePath, flag, perm)
}

// DisableDirectIO - disables directio mode.
func DisableDirectIO(f *os.File) error {
	fd := f.Fd()
	_, err := unix.FcntlInt(fd, unix.F_NOCACHE, 0)
	return err
}

// AlignedBlock - pass through to directio implementation.
func AlignedBlock(blockSize int) []byte {
	return directio.AlignedBlock(blockSize)

func Fdatasync(f *os.File) error {
	return syscall.Fdatasync(int(f.Fd()))
}

// FadviseDontNeed invalidates page-cache
func FadviseDontNeed(f *os.File) error {
	return unix.Fadvise(int(f.Fd()), 0, 0, unix.FADV_DONTNEED)

     *       {@code {"--module-path", "dir/path1:dir/path2"}} on Unix or
     *       {@code {"--module-path", "dir\path1;dir\path2"}} on Windows.</li>
     *   <li>If this type was created by {@code JavaPathType.patchModule("foo.bar")}, then the method returns
     *       {@code {"--patch-module", "foo.bar=dir/path1:dir/path2"}} on Unix or
     *       {@code {"--patch-module", "foo.bar=dir\path1;dir\path2"}} on Windows.</li>

package disk

import (
	"errors"
	"fmt"

	"golang.org/x/sys/unix"
)

// GetInfo returns total and free bytes available in a directory, e.g. `/`.
func GetInfo(path string, _ bool) (info Info, err error) {
	s := unix.Statvfs_t{}
	if err = unix.Statvfs(path, &s); err != nil {
		return Info{}, err
	}
	reservedBlocks := uint64(s.Bfree) - uint64(s.Bavail)
	info = Info{

	if r.Method != http.MethodPut {
		return false
	}
	// If the object doesn't have a modtime (IsZero), or the modtime
	// is obviously garbage (Unix time == 0), then ignore modtimes
	// and don't process the If-Modified-Since header.
	if objInfo.ModTime.IsZero() || objInfo.ModTime.Equal(time.Unix(0, 0)) {
		return false
	}

	// Headers to be set of object content is not going to be written to the client.
	writeHeaders := func() {

			// Enable custom socket send/recv buffers.
			if opts.SendBufSize > 0 {
				_ = unix.SetsockoptInt(fd, unix.SOL_SOCKET, unix.SO_SNDBUF, opts.SendBufSize)
			}

			if opts.RecvBufSize > 0 {
				_ = unix.SetsockoptInt(fd, unix.SOL_SOCKET, unix.SO_RCVBUF, opts.RecvBufSize)
			}

			if opts.NoDelay {
				_ = syscall.SetsockoptInt(fd, syscall.IPPROTO_TCP, unix.TCP_NODELAY, 1)

              kill-phase-on: NEVER
              current-parameters: true
              git-revision: true
            - name: elastic+elasticsearch+%BRANCH%+multijob+platform-support-unix
              kill-phase-on: NEVER
              current-parameters: true
              git-revision: true
            - name: elastic+elasticsearch+%BRANCH%+multijob+platform-support-windows
              kill-phase-on: NEVER