// Because ReadFile reads the whole file, it does not treat an EOF from Read
// as an error to be reported.
func ReadFileWithFileInfo(name string) ([]byte, fs.FileInfo, error) {
	f, err := OsOpenFile(name, readMode, 0o666)
	if err != nil {
		return nil, nil, err
	}
	defer f.Close()

	st, err := f.Stat()
	if err != nil {
		return nil, nil, err
	}

	dst := make([]byte, st.Size())
	_, err = io.ReadFull(f, dst)

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"os"
)

var (
	// No special option for reads on windows
	readMode = os.O_RDONLY

	// Write with sync no buffering only used only for `xl.meta` writes
	writeMode = os.O_SYNC

//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package ioutil

import (
	"os"
)

//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package ioutil

import "os"

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"os"
)

var (
	// Disallow updating access times
	readMode = os.O_RDONLY | 0x40000 // O_NOATIME

	// Write with data sync only used only for `xl.meta` writes
	writeMode = 0x1000 // O_DSYNC

	lock(&cpuprof.lock)
	log := cpuprof.log
	unlock(&cpuprof.lock)
	readMode := profBufBlocking
	if GOOS == "darwin" || GOOS == "ios" {
		readMode = profBufNonBlocking // For #61768; on Darwin notes are not async-signal-safe.  See sigNoteSetup in os_darwin.go.
	}
	data, tags, eof := log.read(readMode)
	if len(data) == 0 && eof {
		lock(&cpuprof.lock)
		cpuprof.log = nil
		unlock(&cpuprof.lock)
	}

// the directory itself, if the dirPath doesn't exist this function doesn't return
// an error.
func readDirFn(dirPath string, fn func(name string, typ os.FileMode) error) error {
	fd, err := openFileWithFD(dirPath, readMode, 0o666)
	if err != nil {
		if osErrToFileErr(err) == errFileNotFound {
			return nil
		}
		if !osIsPermission(err) {
			return osErrToFileErr(err)
		}
		// There may be permission error when dirPath

}

func (b *syncBuffer) Write(p []byte) (n int, err error) {
	n, err = b.buf.Write(p)
	b.signal()
	return
}

func (b *syncBuffer) WriteMode() {
	b.mu.Lock()
}

func (b *syncBuffer) ReadMode() {
	b.mu.Unlock()
	b.signal()
}

func (b *syncBuffer) Close() error {
	b.closed = true
	b.signal()
	return nil
}

func testSync(t *testing.T, level int, input []byte, name string) {

	if contextCanceled(ctx) {
		return nil, time.Time{}, ctx.Err()
	}

	if err := checkPathLength(itemPath); err != nil {
		return nil, time.Time{}, err
	}

	f, err := OpenFile(itemPath, readMode, 0o666)
	if err != nil {
		return nil, time.Time{}, err
	}
	defer f.Close()
	stat, err := f.Stat()
	if err != nil {
		return nil, time.Time{}, err
	}
	if stat.IsDir() {

// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// This file contains tests for the dead code checker.

package deadcode

func _() int {
	print(1)
	return 2
	println() // ERROR "unreachable code"
	return 3