getPodEtcHostsStats(podUID types.UID, rootFsInfo *cadvisorapiv2.FsInfo) (*statsapi.FsStats, error)
}

type hostStatsProvider struct {
	// osInterface is the interface for syscalls.
	osInterface kubecontainer.OSInterface
	// podEtcHostsPathFunc fetches a pod etc hosts path by uid.
	podEtcHostsPathFunc PodEtcHostsPathFunc
	// podLogsDirectory is the root directory path for pod logs.

func Fadvise(fd int, offset int64, length int64, advice int) (err error) {
	_, _, e1 := Syscall6(SYS_FADVISE64_64, uintptr(fd), uintptr(advice), uintptr(offset>>32), uintptr(offset), uintptr(length>>32), uintptr(length))
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

func seek(fd int, offset int64, whence int) (int64, syscall.Errno) {
	var newoffset int64
	offsetLow := uint32(offset & 0xffffffff)

}

//sys	syncFileRange2(fd int, flags int, off int64, n int64) (err error) = SYS_SYNC_FILE_RANGE2

func SyncFileRange(fd int, off int64, n int64, flags int) error {
	// The sync_file_range and sync_file_range2 syscalls differ only in the
	// order of their arguments.
	return syncFileRange2(fd, flags, off, n)
}

//sys	kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, flags int) (err error)

}

//sys	syncFileRange2(fd int, flags int, off int64, n int64) (err error) = SYS_SYNC_FILE_RANGE2

func SyncFileRange(fd int, off int64, n int64, flags int) error {
	// The sync_file_range and sync_file_range2 syscalls differ only in the
	// order of their arguments.
	return syncFileRange2(fd, flags, off, n)

		// a non-NULL pointer of length zero. Preserve the property of nilness,
		// even if we can't use dest directly.
		return unsafe.Pointer(&_zero)
	}
	return nil
}

// FreeBSD and NetBSD implement their own syscalls to handle extended attributes

func Getxattr(file string, attr string, dest []byte) (sz int, err error) {
	d := initxattrdest(dest, 0)
	destsize := len(dest)

	nsid, a, err := xattrnamespace(attr)
	if err != nil {

func Fstatfs(fd int, buf *Statfs_t) (err error) {
	_, _, e := Syscall(SYS_FSTATFS64, uintptr(fd), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf)))
	if e != 0 {
		err = e
	}
	return
}

func Statfs(path string, buf *Statfs_t) (err error) {
	pathp, err := BytePtrFromString(path)
	if err != nil {
		return err
	}

		// Goroutine exited a blocked syscall.
		gs.blockedSyscallEnd(ev.Time(), ev.Stack(), ctx)
	}

	// Handle syscalls.
	if to == trace.GoSyscall && ev.Proc() != trace.NoProc {
		start := ev.Time()
		if from == trace.GoUndetermined {
			// Back-date the event to the start of the trace.
			start = ctx.startTime
		}
		// Write down that we've entered a syscall. Note: we might have no P here

	}
	if from == trace.GoSyscall {
		// Exiting syscall.
		gs.syscallEnd(ev.Time(), to != trace.GoRunning, ctx)
	}

	// Handle syscalls.
	if to == trace.GoSyscall {
		start := ev.Time()
		if from == trace.GoUndetermined {
			// Back-date the event to the start of the trace.
			start = ctx.startTime
		}
		// Write down that we've entered a syscall. Note: we might have no P here

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package os_test

import (
	"fmt"
	"internal/syscall/windows"
	"internal/testenv"
	"os"
	"path/filepath"
	"strings"
	"syscall"
	"testing"
)

func TestAddExtendedPrefix(t *testing.T) {
	// Test addExtendedPrefix instead of fixLongPath so the path manipulation code

	// No user calls from the system stack.
	if getg() != getg().m.curg {
		return debugCallSystemStack
	}
	if sp := getcallersp(); !(getg().stack.lo < sp && sp <= getg().stack.hi) {
		// Fast syscalls (nanotime) and racecall switch to the
		// g0 stack without switching g. We can't safely make
		// a call in this state. (We can't even safely
		// systemstack.)
		return debugCallSystemStack
	}