go dirent_freebsd 源码
golang dirent_freebsd 代码
文件路径：/src/os/dirent_freebsd.go
// Copyright 2020 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.
package os
import (
"syscall"
"unsafe"
)
func direntIno(buf []byte) (uint64, bool) {
return readInt(buf, unsafe.Offsetof(syscall.Dirent{}.Fileno), unsafe.Sizeof(syscall.Dirent{}.Fileno))
}
func direntReclen(buf []byte) (uint64, bool) {
return readInt(buf, unsafe.Offsetof(syscall.Dirent{}.Reclen), unsafe.Sizeof(syscall.Dirent{}.Reclen))
}
func direntNamlen(buf []byte) (uint64, bool) {
return readInt(buf, unsafe.Offsetof(syscall.Dirent{}.Namlen), unsafe.Sizeof(syscall.Dirent{}.Namlen))
}
func direntType(buf []byte) FileMode {
off := unsafe.Offsetof(syscall.Dirent{}.Type)
if off >= uintptr(len(buf)) {
return ^FileMode(0) // unknown
}
typ := buf[off]
switch typ {
case syscall.DT_BLK:
return ModeDevice
case syscall.DT_CHR:
return ModeDevice | ModeCharDevice
case syscall.DT_DIR:
return ModeDir
case syscall.DT_FIFO:
return ModeNamedPipe
case syscall.DT_LNK:
return ModeSymlink
case syscall.DT_REG:
return 0
case syscall.DT_SOCK:
return ModeSocket
}
return ^FileMode(0) // unknown
}
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