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// Automatically generated marshal implementation. See tools/go_marshal.
package auth
import (
"gvisor.dev/gvisor/pkg/gohacks"
"gvisor.dev/gvisor/pkg/hostarch"
"gvisor.dev/gvisor/pkg/marshal"
"io"
"reflect"
"runtime"
"unsafe"
)
// Marshallable types used by this file.
var _ marshal.Marshallable = (*GID)(nil)
var _ marshal.Marshallable = (*UID)(nil)
// SizeBytes implements marshal.Marshallable.SizeBytes.
//go:nosplit
func (gid *GID) SizeBytes() int {
return 4
}
// MarshalBytes implements marshal.Marshallable.MarshalBytes.
func (gid *GID) MarshalBytes(dst []byte) []byte {
hostarch.ByteOrder.PutUint32(dst[:4], uint32(*gid))
return dst[4:]
}
// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
func (gid *GID) UnmarshalBytes(src []byte) []byte {
*gid = GID(uint32(hostarch.ByteOrder.Uint32(src[:4])))
return src[4:]
}
// Packed implements marshal.Marshallable.Packed.
//go:nosplit
func (gid *GID) Packed() bool {
// Scalar newtypes are always packed.
return true
}
// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
func (gid *GID) MarshalUnsafe(dst []byte) []byte {
size := gid.SizeBytes()
gohacks.Memmove(unsafe.Pointer(&dst[0]), unsafe.Pointer(gid), uintptr(size))
return dst[size:]
}
// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
func (gid *GID) UnmarshalUnsafe(src []byte) []byte {
size := gid.SizeBytes()
gohacks.Memmove(unsafe.Pointer(gid), unsafe.Pointer(&src[0]), uintptr(size))
return src[size:]
}
// CopyOutN implements marshal.Marshallable.CopyOutN.
func (gid *GID) CopyOutN(cc marshal.CopyContext, addr hostarch.Addr, limit int) (int, error) {
// Construct a slice backed by dst's underlying memory.
var buf []byte
hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(gid)))
hdr.Len = gid.SizeBytes()
hdr.Cap = gid.SizeBytes()
length, err := cc.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
// Since we bypassed the compiler's escape analysis, indicate that gid
// must live until the use above.
runtime.KeepAlive(gid) // escapes: replaced by intrinsic.
return length, err
}
// CopyOut implements marshal.Marshallable.CopyOut.
func (gid *GID) CopyOut(cc marshal.CopyContext, addr hostarch.Addr) (int, error) {
return gid.CopyOutN(cc, addr, gid.SizeBytes())
}
// CopyIn implements marshal.Marshallable.CopyIn.
func (gid *GID) CopyIn(cc marshal.CopyContext, addr hostarch.Addr) (int, error) {
// Construct a slice backed by dst's underlying memory.
var buf []byte
hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(gid)))
hdr.Len = gid.SizeBytes()
hdr.Cap = gid.SizeBytes()
length, err := cc.CopyInBytes(addr, buf) // escapes: okay.
// Since we bypassed the compiler's escape analysis, indicate that gid
// must live until the use above.
runtime.KeepAlive(gid) // escapes: replaced by intrinsic.
return length, err
}
// WriteTo implements io.WriterTo.WriteTo.
func (gid *GID) WriteTo(writer io.Writer) (int64, error) {
// Construct a slice backed by dst's underlying memory.
var buf []byte
hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(gid)))
hdr.Len = gid.SizeBytes()
hdr.Cap = gid.SizeBytes()
length, err := writer.Write(buf)
// Since we bypassed the compiler's escape analysis, indicate that gid
// must live until the use above.
runtime.KeepAlive(gid) // escapes: replaced by intrinsic.
return int64(length), err
}
// CopyGIDSliceIn copies in a slice of GID objects from the task's memory.
func CopyGIDSliceIn(cc marshal.CopyContext, addr hostarch.Addr, dst []GID) (int, error) {
count := len(dst)
if count == 0 {
return 0, nil
}
size := (*GID)(nil).SizeBytes()
ptr := unsafe.Pointer(&dst)
val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
// Construct a slice backed by dst's underlying memory.
var buf []byte
hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
hdr.Data = uintptr(val)
hdr.Len = size * count
hdr.Cap = size * count
length, err := cc.CopyInBytes(addr, buf) // escapes: okay.
// Since we bypassed the compiler's escape analysis, indicate that dst
// must live until the use above.
runtime.KeepAlive(dst) // escapes: replaced by intrinsic.
return length, err
}
// CopyGIDSliceOut copies a slice of GID objects to the task's memory.
func CopyGIDSliceOut(cc marshal.CopyContext, addr hostarch.Addr, src []GID) (int, error) {
count := len(src)
if count == 0 {
return 0, nil
}
size := (*GID)(nil).SizeBytes()
ptr := unsafe.Pointer(&src)
val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
// Construct a slice backed by dst's underlying memory.
var buf []byte
hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
hdr.Data = uintptr(val)
hdr.Len = size * count
hdr.Cap = size * count
length, err := cc.CopyOutBytes(addr, buf) // escapes: okay.
// Since we bypassed the compiler's escape analysis, indicate that src
// must live until the use above.
runtime.KeepAlive(src) // escapes: replaced by intrinsic.
return length, err
}
// MarshalUnsafeGIDSlice is like GID.MarshalUnsafe, but for a []GID.
func MarshalUnsafeGIDSlice(src []GID, dst []byte) []byte {
count := len(src)
if count == 0 {
return dst
}
size := (*GID)(nil).SizeBytes()
buf := dst[:size*count]
gohacks.Memmove(unsafe.Pointer(&buf[0]), unsafe.Pointer(&src[0]), uintptr(len(buf)))
return dst[size*count:]
}
// UnmarshalUnsafeGIDSlice is like GID.UnmarshalUnsafe, but for a []GID.
func UnmarshalUnsafeGIDSlice(dst []GID, src []byte) []byte {
count := len(dst)
if count == 0 {
return src
}
size := (*GID)(nil).SizeBytes()
buf := src[:size*count]
gohacks.Memmove(unsafe.Pointer(&dst[0]), unsafe.Pointer(&buf[0]), uintptr(len(buf)))
return src[size*count:]
}
// SizeBytes implements marshal.Marshallable.SizeBytes.
//go:nosplit
func (uid *UID) SizeBytes() int {
return 4
}
// MarshalBytes implements marshal.Marshallable.MarshalBytes.
func (uid *UID) MarshalBytes(dst []byte) []byte {
hostarch.ByteOrder.PutUint32(dst[:4], uint32(*uid))
return dst[4:]
}
// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
func (uid *UID) UnmarshalBytes(src []byte) []byte {
*uid = UID(uint32(hostarch.ByteOrder.Uint32(src[:4])))
return src[4:]
}
// Packed implements marshal.Marshallable.Packed.
//go:nosplit
func (uid *UID) Packed() bool {
// Scalar newtypes are always packed.
return true
}
// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
func (uid *UID) MarshalUnsafe(dst []byte) []byte {
size := uid.SizeBytes()
gohacks.Memmove(unsafe.Pointer(&dst[0]), unsafe.Pointer(uid), uintptr(size))
return dst[size:]
}
// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
func (uid *UID) UnmarshalUnsafe(src []byte) []byte {
size := uid.SizeBytes()
gohacks.Memmove(unsafe.Pointer(uid), unsafe.Pointer(&src[0]), uintptr(size))
return src[size:]
}
// CopyOutN implements marshal.Marshallable.CopyOutN.
func (uid *UID) CopyOutN(cc marshal.CopyContext, addr hostarch.Addr, limit int) (int, error) {
// Construct a slice backed by dst's underlying memory.
var buf []byte
hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(uid)))
hdr.Len = uid.SizeBytes()
hdr.Cap = uid.SizeBytes()
length, err := cc.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
// Since we bypassed the compiler's escape analysis, indicate that uid
// must live until the use above.
runtime.KeepAlive(uid) // escapes: replaced by intrinsic.
return length, err
}
// CopyOut implements marshal.Marshallable.CopyOut.
func (uid *UID) CopyOut(cc marshal.CopyContext, addr hostarch.Addr) (int, error) {
return uid.CopyOutN(cc, addr, uid.SizeBytes())
}
// CopyIn implements marshal.Marshallable.CopyIn.
func (uid *UID) CopyIn(cc marshal.CopyContext, addr hostarch.Addr) (int, error) {
// Construct a slice backed by dst's underlying memory.
var buf []byte
hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(uid)))
hdr.Len = uid.SizeBytes()
hdr.Cap = uid.SizeBytes()
length, err := cc.CopyInBytes(addr, buf) // escapes: okay.
// Since we bypassed the compiler's escape analysis, indicate that uid
// must live until the use above.
runtime.KeepAlive(uid) // escapes: replaced by intrinsic.
return length, err
}
// WriteTo implements io.WriterTo.WriteTo.
func (uid *UID) WriteTo(writer io.Writer) (int64, error) {
// Construct a slice backed by dst's underlying memory.
var buf []byte
hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(uid)))
hdr.Len = uid.SizeBytes()
hdr.Cap = uid.SizeBytes()
length, err := writer.Write(buf)
// Since we bypassed the compiler's escape analysis, indicate that uid
// must live until the use above.
runtime.KeepAlive(uid) // escapes: replaced by intrinsic.
return int64(length), err
}
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