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Levin Zimmermann
neoppod
Commits
2c03f1f6
Commit
2c03f1f6
authored
Nov 02, 2017
by
Kirill Smelkov
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parent
e796a2b6
Changes
4
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4 changed files
with
9 additions
and
12 deletions
+9
-12
go/zodb/buffer.go
go/zodb/buffer.go
+2
-5
go/zodb/buffer_test.go
go/zodb/buffer_test.go
+3
-3
go/zodb/pydata.go
go/zodb/pydata.go
+2
-2
go/zodb/str.go
go/zodb/str.go
+2
-2
No files found.
go/zodb/buffer.go
View file @
2c03f1f6
...
@@ -34,7 +34,7 @@ import (
...
@@ -34,7 +34,7 @@ import (
//
//
// Custom allocation functions affect only performance, not correctness -
// Custom allocation functions affect only performance, not correctness -
// everything should work if data buffer is allocated and/or free'ed
// everything should work if data buffer is allocated and/or free'ed
// regular Go/GC-way.
//
via
regular Go/GC-way.
type
Buf
struct
{
type
Buf
struct
{
Data
[]
byte
Data
[]
byte
...
@@ -54,10 +54,9 @@ func init() {
...
@@ -54,10 +54,9 @@ func init() {
for
i
:=
0
;
i
<
len
(
bufPoolv
);
i
++
{
for
i
:=
0
;
i
<
len
(
bufPoolv
);
i
++
{
i
:=
i
i
:=
i
bufPoolv
[
i
]
.
New
=
func
()
interface
{}
{
bufPoolv
[
i
]
.
New
=
func
()
interface
{}
{
//println("X allocating for order", i)
// NOTE *Buf, not just buf, to avoid allocation when
// NOTE *Buf, not just buf, to avoid allocation when
// making interface{} from it (interface{} wants to always point to heap)
// making interface{} from it (interface{} wants to always point to heap)
return
&
Buf
{
Data
:
make
([]
byte
,
1
<<
(
order0
+
uint
(
i
)))}
return
&
Buf
{
Data
:
make
([]
byte
,
1
<<
(
order0
+
uint
(
i
)))}
}
}
}
}
}
}
...
@@ -116,9 +115,7 @@ func (buf *Buf) Release() {
...
@@ -116,9 +115,7 @@ func (buf *Buf) Release() {
}
}
// order = max i: 2^i <= cap
// order = max i: 2^i <= cap
//order := bits.Len(uint(cap(buf.Data)))
order
:=
xmath
.
FloorLog2
(
uint64
(
cap
(
buf
.
Data
)))
order
:=
xmath
.
FloorLog2
(
uint64
(
cap
(
buf
.
Data
)))
//println("YYY free", cap(buf.Data), "-> order:", order)
order
-=
order0
order
-=
order0
if
order
<
0
{
if
order
<
0
{
...
...
go/zodb/buffer_test.go
View file @
2c03f1f6
...
@@ -51,9 +51,9 @@ func TestBufAllocFree(t *testing.T) {
...
@@ -51,9 +51,9 @@ func TestBufAllocFree(t *testing.T) {
xcap
:=
1
<<
i
xcap
:=
1
<<
i
buf
:=
BufAlloc
(
size
)
buf
:=
BufAlloc
(
size
)
if
i
<
order0
{
if
i
<
order0
{
xcap
=
1
<<
order0
xcap
=
1
<<
order0
}
}
if
int
(
i
)
>=
order0
+
len
(
bufPoolv
)
{
if
int
(
i
)
>=
order0
+
len
(
bufPoolv
)
{
xcap
=
size
xcap
=
size
}
}
...
@@ -80,7 +80,7 @@ func TestBufAllocFree(t *testing.T) {
...
@@ -80,7 +80,7 @@ func TestBufAllocFree(t *testing.T) {
buf2
:=
BufAlloc
(
size
)
buf2
:=
BufAlloc
(
size
)
// not from pool - memory won't be reused
// not from pool - memory won't be reused
if
int
(
i
)
>=
order0
+
len
(
bufPoolv
)
{
if
int
(
i
)
>=
order0
+
len
(
bufPoolv
)
{
if
buf2
==
buf
||
sliceDataPtr
(
buf2
.
Data
)
==
sliceDataPtr
(
data
)
{
if
buf2
==
buf
||
sliceDataPtr
(
buf2
.
Data
)
==
sliceDataPtr
(
data
)
{
t
.
Fatalf
(
"%v: buffer reused but should not"
,
i
)
t
.
Fatalf
(
"%v: buffer reused but should not"
,
i
)
}
}
...
...
go/zodb/pydata.go
View file @
2c03f1f6
go/zodb/str.go
View file @
2c03f1f6
...
@@ -63,10 +63,10 @@ func (xtid XTid) String() string {
...
@@ -63,10 +63,10 @@ func (xtid XTid) String() string {
}
}
func
(
xid
Xid
)
String
()
string
{
func
(
xid
Xid
)
String
()
string
{
return
xid
.
XTid
.
String
()
+
":"
+
xid
.
Oid
.
String
()
// XXX use "·" instead of ":" ?
return
xid
.
XTid
.
String
()
+
":"
+
xid
.
Oid
.
String
()
}
}
/* TODO reenable
/* TODO reenable
?
func (xtid XTid) XFmtString(b []byte) []byte {
func (xtid XTid) XFmtString(b []byte) []byte {
b .C("=<"[bint(xtid.TidBefore)]) .V(xtid.Tid)
b .C("=<"[bint(xtid.TidBefore)]) .V(xtid.Tid)
}
}
...
...
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