ceremonyclient/pebble/vfs/default_unix.go

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2024-01-03 07:31:42 +00:00
// Copyright 2023 The LevelDB-Go and Pebble Authors. All rights reserved. Use
// of this source code is governed by a BSD-style license that can be found in
// the LICENSE file.
//go:build darwin || dragonfly || freebsd || netbsd || openbsd || solaris
// +build darwin dragonfly freebsd netbsd openbsd solaris
package vfs
import (
"os"
"syscall"
"github.com/cockroachdb/errors"
)
func wrapOSFileImpl(osFile *os.File) File {
return &unixFile{File: osFile, fd: osFile.Fd()}
}
func (defaultFS) OpenDir(name string) (File, error) {
f, err := os.OpenFile(name, syscall.O_CLOEXEC, 0)
if err != nil {
return nil, errors.WithStack(err)
}
return &unixFile{f, InvalidFd}, nil
}
// Assert that unixFile implements vfs.File.
var _ File = (*unixFile)(nil)
type unixFile struct {
*os.File
fd uintptr
}
func (*unixFile) Prefetch(offset int64, length int64) error { return nil }
func (*unixFile) Preallocate(offset, length int64) error { return nil }
func (f *unixFile) SyncData() error {
return f.Sync()
}
func (f *unixFile) SyncTo(int64) (fullSync bool, err error) {
if err = f.Sync(); err != nil {
return false, err
}
return true, nil
}