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// Copyright 2016 the Go-FUSE 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 fuse
import (
"syscall"
)
const (
ENOATTR = Status(syscall.ENOATTR) // ENOATTR is not defined for all GOOS.
// EREMOTEIO is not supported on Darwin.
EREMOTEIO = Status(syscall.EIO)
)
type Attr struct {
Ino uint64
Size uint64
Blocks uint64
Atime uint64
Mtime uint64
Ctime uint64
Crtime_ uint64 // OS X
Atimensec uint32
Mtimensec uint32
Ctimensec uint32
Crtimensec_ uint32 // OS X
Mode uint32
Nlink uint32
Owner
Rdev uint32
Flags_ uint32 // OS X
Blksize uint32
Padding uint32
}
const (
FATTR_CRTIME = (1 << 28)
FATTR_CHGTIME = (1 << 29)
FATTR_BKUPTIME = (1 << 30)
FATTR_FLAGS = (1 << 31)
)
type SetAttrIn struct {
SetAttrInCommon
// OS X only
Bkuptime_ uint64
Chgtime_ uint64
Crtime uint64
BkuptimeNsec uint32
ChgtimeNsec uint32
CrtimeNsec uint32
Flags_ uint32 // see chflags(2)
}
const (
FOPEN_PURGE_ATTR = (1 << 30)
FOPEN_PURGE_UBC = (1 << 31)
)
// compat with linux.
const (
// Mask for GetAttrIn.Flags. If set, GetAttrIn has a file handle set.
FUSE_GETATTR_FH = (1 << 0)
)
type GetAttrIn struct {
InHeader
Flags_ uint32
Dummy uint32
Fh_ uint64
}
func (g *GetAttrIn) Flags() uint32 {
return g.Flags_
}
func (g *GetAttrIn) Fh() uint64 {
return g.Fh_
}
// Uses OpenIn struct for create.
type CreateIn struct {
InHeader
Flags uint32
// Mode for the new file; already takes Umask into account.
Mode uint32
// Umask used for this create call.
Umask uint32
Padding uint32
}
type MknodIn struct {
InHeader
// Mode to use, including the Umask value
Mode uint32
Rdev uint32
Umask uint32
Padding uint32
}
type ReadIn struct {
InHeader
Fh uint64
Offset uint64
Size uint32
ReadFlags uint32
LockOwner uint64
Flags uint32
Padding uint32
}
type WriteIn struct {
InHeader
Fh uint64
Offset uint64
Size uint32
WriteFlags uint32
LockOwner uint64
Flags uint32
Padding uint32
}
type SetXAttrIn struct {
InHeader
Size uint32
Flags uint32
Position uint32
Padding uint32
}
type GetXAttrIn struct {
InHeader
Size uint32
Padding uint32
Position uint32
Padding2 uint32
}
const (
CAP_CASE_INSENSITIVE = (1 << 29)
CAP_VOL_RENAME = (1 << 30)
CAP_XTIMES = (1 << 31)
)
type GetxtimesOut struct {
Bkuptime uint64
Crtime uint64
Bkuptimensec uint32
Crtimensec uint32
}
type ExchangeIn struct {
InHeader
Olddir uint64
Newdir uint64
Options uint64
}
func (s *StatfsOut) FromStatfsT(statfs *syscall.Statfs_t) {
s.Blocks = statfs.Blocks
s.Bfree = statfs.Bfree
s.Bavail = statfs.Bavail
s.Files = statfs.Files
s.Ffree = statfs.Ffree
s.Bsize = uint32(statfs.Iosize) // Iosize translates to Bsize: the optimal transfer size.
s.Frsize = s.Bsize // Bsize translates to Frsize: the minimum transfer size.
// The block counts are in units of statfs.Bsize.
// If s.Bsize != statfs.Bsize, we have to recalculate the block counts
// accordingly (s.Bsize is usually 256*statfs.Bsize).
if s.Bsize > statfs.Bsize {
adj := uint64(s.Bsize / statfs.Bsize)
s.Blocks /= adj
s.Bfree /= adj
s.Bavail /= adj
}
}
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