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Kirill Smelkov
jacobsa-fuse
Commits
b3d13508
Commit
b3d13508
authored
Jul 24, 2015
by
Aaron Jacobs
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Plain Diff
Renamed to OutMessage.
parent
51666318
Changes
1
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8 additions
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8 deletions
+8
-8
internal/buffer/out_message.go
internal/buffer/out_message.go
+8
-8
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internal/buffer/out_message.go
View file @
b3d13508
...
...
@@ -21,25 +21,25 @@ import (
"github.com/jacobsa/fuse/internal/fusekernel"
)
//
Buffer
provides a mechanism for constructing a single contiguous fuse
//
OutMessage
provides a mechanism for constructing a single contiguous fuse
// message from multiple segments, where the first segment is always a
// fusekernel.OutHeader message.
//
// Must be created with New. Exception: the zero value has Bytes() == nil.
type
Buffer
struct
{
type
OutMessage
struct
{
slice
[]
byte
}
// Create a new buffer whose initial contents are a zeroed fusekernel.OutHeader
// message, and with room enough to grow by extra bytes.
func
New
(
extra
uintptr
)
(
b
Buffer
)
{
func
New
OutMessage
(
extra
uintptr
)
(
b
OutMessage
)
{
const
headerSize
=
unsafe
.
Sizeof
(
fusekernel
.
OutHeader
{})
b
.
slice
=
make
([]
byte
,
headerSize
,
headerSize
+
extra
)
return
}
// Return a pointer to the header at the start of the buffer.
func
(
b
*
Buffer
)
OutHeader
()
(
h
*
fusekernel
.
OutHeader
)
{
func
(
b
*
OutMessage
)
OutHeader
()
(
h
*
fusekernel
.
OutHeader
)
{
sh
:=
(
*
reflect
.
SliceHeader
)(
unsafe
.
Pointer
(
&
b
.
slice
))
h
=
(
*
fusekernel
.
OutHeader
)(
unsafe
.
Pointer
(
sh
.
Data
))
return
...
...
@@ -48,7 +48,7 @@ func (b *Buffer) OutHeader() (h *fusekernel.OutHeader) {
// Grow the buffer by the supplied number of bytes, returning a pointer to the
// start of the new segment. The sum of the arguments given to Grow must not
// exceed the argument given to New when creating the buffer.
func
(
b
*
Buffer
)
Grow
(
size
uintptr
)
(
p
unsafe
.
Pointer
)
{
func
(
b
*
OutMessage
)
Grow
(
size
uintptr
)
(
p
unsafe
.
Pointer
)
{
sh
:=
(
*
reflect
.
SliceHeader
)(
unsafe
.
Pointer
(
&
b
.
slice
))
p
=
unsafe
.
Pointer
(
sh
.
Data
+
uintptr
(
sh
.
Len
))
b
.
slice
=
b
.
slice
[
:
len
(
b
.
slice
)
+
int
(
size
)]
...
...
@@ -56,7 +56,7 @@ func (b *Buffer) Grow(size uintptr) (p unsafe.Pointer) {
}
// Equivalent to growing by the length of p, then copying p into the new segment.
func
(
b
*
Buffer
)
Append
(
p
[]
byte
)
{
func
(
b
*
OutMessage
)
Append
(
p
[]
byte
)
{
sh
:=
reflect
.
SliceHeader
{
Data
:
uintptr
(
b
.
Grow
(
uintptr
(
len
(
p
)))),
Len
:
len
(
p
),
...
...
@@ -67,7 +67,7 @@ func (b *Buffer) Append(p []byte) {
}
// Equivalent to growing by the length of s, then copying s into the new segment.
func
(
b
*
Buffer
)
AppendString
(
s
string
)
{
func
(
b
*
OutMessage
)
AppendString
(
s
string
)
{
sh
:=
reflect
.
SliceHeader
{
Data
:
uintptr
(
b
.
Grow
(
uintptr
(
len
(
s
)))),
Len
:
len
(
s
),
...
...
@@ -78,6 +78,6 @@ func (b *Buffer) AppendString(s string) {
}
// Return a reference to the current contents of the buffer.
func
(
b
*
Buffer
)
Bytes
()
[]
byte
{
func
(
b
*
OutMessage
)
Bytes
()
[]
byte
{
return
b
.
slice
}
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