34324031cb
Signed-off-by: Adrian Cole <adrian@tetrate.io> Signed-off-by: Edoardo Vacchi <evacchi@users.noreply.github.com> Co-authored-by: Edoardo Vacchi <evacchi@users.noreply.github.com>
100 lines
2.3 KiB
Go
100 lines
2.3 KiB
Go
package fsapi
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import (
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"fmt"
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"io/fs"
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"syscall"
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"time"
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)
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// Dirent is an entry read from a directory.
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//
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// This is a portable variant of syscall.Dirent containing fields needed for
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// WebAssembly ABI including WASI snapshot-01 and wasi-filesystem. Unlike
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// fs.DirEntry, this may include the Ino.
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type Dirent struct {
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// ^^ Dirent name matches syscall.Dirent
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// Name is the base name of the directory entry.
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Name string
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// Ino is the file serial number, or zero if not available.
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Ino uint64
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// Type is fs.FileMode masked on fs.ModeType. For example, zero is a
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// regular file, fs.ModeDir is a directory and fs.ModeIrregular is unknown.
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Type fs.FileMode
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}
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func (d *Dirent) String() string {
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return fmt.Sprintf("name=%s, type=%v, ino=%d", d.Name, d.Type, d.Ino)
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}
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// IsDir returns true if the Type is fs.ModeDir.
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func (d *Dirent) IsDir() bool {
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return d.Type == fs.ModeDir
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}
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// DirFile is embeddable to reduce the amount of functions to implement a file.
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type DirFile struct{}
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// IsAppend implements File.IsAppend
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func (DirFile) IsAppend() bool {
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return false
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}
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// SetAppend implements File.SetAppend
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func (DirFile) SetAppend(bool) syscall.Errno {
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return syscall.EISDIR
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}
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// IsNonblock implements File.IsNonblock
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func (DirFile) IsNonblock() bool {
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return false
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}
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// SetNonblock implements File.SetNonblock
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func (DirFile) SetNonblock(bool) syscall.Errno {
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return syscall.EISDIR
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}
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// IsDir implements File.IsDir
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func (DirFile) IsDir() (bool, syscall.Errno) {
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return true, 0
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}
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// Read implements File.Read
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func (DirFile) Read([]byte) (int, syscall.Errno) {
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return 0, syscall.EISDIR
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}
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// Pread implements File.Pread
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func (DirFile) Pread([]byte, int64) (int, syscall.Errno) {
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return 0, syscall.EISDIR
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}
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// Seek implements File.Seek
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func (DirFile) Seek(int64, int) (int64, syscall.Errno) {
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return 0, syscall.EISDIR
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}
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// PollRead implements File.PollRead
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func (DirFile) PollRead(*time.Duration) (ready bool, errno syscall.Errno) {
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return false, syscall.ENOSYS
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}
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// Write implements File.Write
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func (DirFile) Write([]byte) (int, syscall.Errno) {
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return 0, syscall.EISDIR
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}
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// Pwrite implements File.Pwrite
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func (DirFile) Pwrite([]byte, int64) (int, syscall.Errno) {
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return 0, syscall.EISDIR
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}
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// Truncate implements File.Truncate
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func (DirFile) Truncate(int64) syscall.Errno {
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return syscall.EISDIR
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}
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