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ruanhaishen
redis
Commits
54ecc0e7
Commit
54ecc0e7
authored
Dec 12, 2011
by
antirez
Browse files
Hash type AOF rewrite using HMSET.
parent
7df9b141
Changes
1
Hide whitespace changes
Inline
Side-by-side
src/aof.c
View file @
54ecc0e7
...
...
@@ -595,6 +595,56 @@ int rewriteSortedSetObject(rio *r, robj *key, robj *o) {
return
1
;
}
/* Emit the commands needed to rebuild a hash object.
* The function returns 0 on error, 1 on success. */
int
rewriteHashObject
(
rio
*
r
,
robj
*
key
,
robj
*
o
)
{
long
long
count
=
0
,
items
=
hashTypeLength
(
o
);
if
(
o
->
encoding
==
REDIS_ENCODING_ZIPMAP
)
{
unsigned
char
*
p
=
zipmapRewind
(
o
->
ptr
);
unsigned
char
*
field
,
*
val
;
unsigned
int
flen
,
vlen
;
while
((
p
=
zipmapNext
(
p
,
&
field
,
&
flen
,
&
val
,
&
vlen
))
!=
NULL
)
{
if
(
count
==
0
)
{
int
cmd_items
=
(
items
>
REDIS_AOFREWRITE_ITEMS_PER_CMD
)
?
REDIS_AOFREWRITE_ITEMS_PER_CMD
:
items
;
if
(
rioWriteBulkCount
(
r
,
'*'
,
2
+
cmd_items
*
2
)
==
0
)
return
0
;
if
(
rioWriteBulkString
(
r
,
"HMSET"
,
5
)
==
0
)
return
0
;
if
(
rioWriteBulkObject
(
r
,
key
)
==
0
)
return
0
;
}
if
(
rioWriteBulkString
(
r
,(
char
*
)
field
,
flen
)
==
0
)
return
0
;
if
(
rioWriteBulkString
(
r
,(
char
*
)
val
,
vlen
)
==
0
)
return
0
;
if
(
++
count
==
REDIS_AOFREWRITE_ITEMS_PER_CMD
)
count
=
0
;
items
--
;
}
}
else
{
dictIterator
*
di
=
dictGetIterator
(
o
->
ptr
);
dictEntry
*
de
;
while
((
de
=
dictNext
(
di
))
!=
NULL
)
{
robj
*
field
=
dictGetKey
(
de
);
robj
*
val
=
dictGetVal
(
de
);
if
(
count
==
0
)
{
int
cmd_items
=
(
items
>
REDIS_AOFREWRITE_ITEMS_PER_CMD
)
?
REDIS_AOFREWRITE_ITEMS_PER_CMD
:
items
;
if
(
rioWriteBulkCount
(
r
,
'*'
,
2
+
cmd_items
*
2
)
==
0
)
return
0
;
if
(
rioWriteBulkString
(
r
,
"HMSET"
,
5
)
==
0
)
return
0
;
if
(
rioWriteBulkObject
(
r
,
key
)
==
0
)
return
0
;
}
if
(
rioWriteBulkObject
(
r
,
field
)
==
0
)
return
0
;
if
(
rioWriteBulkObject
(
r
,
val
)
==
0
)
return
0
;
if
(
++
count
==
REDIS_AOFREWRITE_ITEMS_PER_CMD
)
count
=
0
;
items
--
;
}
dictReleaseIterator
(
di
);
}
return
1
;
}
/* Write a sequence of commands able to fully rebuild the dataset into
* "filename". Used both by REWRITEAOF and BGREWRITEAOF.
*
...
...
@@ -663,37 +713,7 @@ int rewriteAppendOnlyFile(char *filename) {
}
else
if
(
o
->
type
==
REDIS_ZSET
)
{
if
(
rewriteSortedSetObject
(
&
aof
,
&
key
,
o
)
==
0
)
goto
werr
;
}
else
if
(
o
->
type
==
REDIS_HASH
)
{
char
cmd
[]
=
"*4
\r\n
$4
\r\n
HSET
\r\n
"
;
/* Emit the HSETs needed to rebuild the hash */
if
(
o
->
encoding
==
REDIS_ENCODING_ZIPMAP
)
{
unsigned
char
*
p
=
zipmapRewind
(
o
->
ptr
);
unsigned
char
*
field
,
*
val
;
unsigned
int
flen
,
vlen
;
while
((
p
=
zipmapNext
(
p
,
&
field
,
&
flen
,
&
val
,
&
vlen
))
!=
NULL
)
{
if
(
rioWrite
(
&
aof
,
cmd
,
sizeof
(
cmd
)
-
1
)
==
0
)
goto
werr
;
if
(
rioWriteBulkObject
(
&
aof
,
&
key
)
==
0
)
goto
werr
;
if
(
rioWriteBulkString
(
&
aof
,(
char
*
)
field
,
flen
)
==
0
)
goto
werr
;
if
(
rioWriteBulkString
(
&
aof
,(
char
*
)
val
,
vlen
)
==
0
)
goto
werr
;
}
}
else
{
dictIterator
*
di
=
dictGetIterator
(
o
->
ptr
);
dictEntry
*
de
;
while
((
de
=
dictNext
(
di
))
!=
NULL
)
{
robj
*
field
=
dictGetKey
(
de
);
robj
*
val
=
dictGetVal
(
de
);
if
(
rioWrite
(
&
aof
,
cmd
,
sizeof
(
cmd
)
-
1
)
==
0
)
goto
werr
;
if
(
rioWriteBulkObject
(
&
aof
,
&
key
)
==
0
)
goto
werr
;
if
(
rioWriteBulkObject
(
&
aof
,
field
)
==
0
)
goto
werr
;
if
(
rioWriteBulkObject
(
&
aof
,
val
)
==
0
)
goto
werr
;
}
dictReleaseIterator
(
di
);
}
if
(
rewriteHashObject
(
&
aof
,
&
key
,
o
)
==
0
)
goto
werr
;
}
else
{
redisPanic
(
"Unknown object type"
);
}
...
...
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