61 lines
1.1 KiB
Go
61 lines
1.1 KiB
Go
// Copyright (C) 2022 Marius Schellenberger
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package os
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import (
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"cachefs/pkg/provider"
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"io/fs"
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"os"
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"path"
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"path/filepath"
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"golang.org/x/sys/unix"
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)
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var _ provider.FS = (*FS)(nil)
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type FS struct {
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root string
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}
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func NewFS(root string) (*FS, error) {
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return &FS{root}, nil
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}
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func (fs *FS) path(p string) string {
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return filepath.Join(fs.root, filepath.FromSlash(path.Clean("/"+p)))
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}
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func (fs *FS) Stat(p string) (fs.FileInfo, error) {
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return os.Stat(fs.path(p))
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}
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func (fs *FS) Remove(p string) error {
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return os.Remove(fs.path(p))
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}
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func (fs *FS) Open(p string) (provider.File, error) {
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return os.Open(fs.path(p))
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}
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func (fs *FS) OpenFile(p string, flags int, mode os.FileMode) (provider.File, error) {
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return os.OpenFile(fs.path(p), flags, mode)
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}
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func (fs *FS) MkdirAll(p string, mode os.FileMode) error {
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return os.MkdirAll(fs.path(p), mode)
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}
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func (fs *FS) Root() string {
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return fs.root
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}
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func (fs *FS) Fstat(fd uintptr) (int64, error) {
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var stat unix.Stat_t
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err := unix.Fstat(int(fd), &stat)
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return stat.Blocks, err
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}
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func (FS) Close() error {
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return nil
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}
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