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ruanhaishen
redis
Commits
9ae6b0be
Commit
9ae6b0be
authored
May 30, 2010
by
Pieter Noordhuis
Browse files
support dual encoding in LTRIM
parent
a6dd455b
Changes
1
Hide whitespace changes
Inline
Side-by-side
redis.c
View file @
9ae6b0be
...
...
@@ -5087,8 +5087,7 @@ static void ltrimCommand(redisClient *c) {
if
((
o
=
lookupKeyWriteOrReply
(
c
,
c
->
argv
[
1
],
shared
.
ok
))
==
NULL
||
checkType
(
c
,
o
,
REDIS_LIST
))
return
;
list
=
o
->
ptr
;
llen
=
listLength
(
list
);
llen
=
lLength
(
o
);
/* convert negative indexes */
if
(
start
<
0
)
start
=
llen
+
start
;
...
...
@@ -5108,15 +5107,23 @@ static void ltrimCommand(redisClient *c) {
}
/* Remove list elements to perform the trim */
for
(
j
=
0
;
j
<
ltrim
;
j
++
)
{
ln
=
listFirst
(
list
);
listDelNode
(
list
,
ln
);
}
for
(
j
=
0
;
j
<
rtrim
;
j
++
)
{
ln
=
listLast
(
list
);
listDelNode
(
list
,
ln
);
if
(
o
->
encoding
==
REDIS_ENCODING_ZIPLIST
)
{
o
->
ptr
=
ziplistDeleteRange
(
o
->
ptr
,
0
,
ltrim
);
o
->
ptr
=
ziplistDeleteRange
(
o
->
ptr
,
-
rtrim
,
rtrim
);
}
else
if
(
o
->
encoding
==
REDIS_ENCODING_LIST
)
{
list
=
o
->
ptr
;
for
(
j
=
0
;
j
<
ltrim
;
j
++
)
{
ln
=
listFirst
(
list
);
listDelNode
(
list
,
ln
);
}
for
(
j
=
0
;
j
<
rtrim
;
j
++
)
{
ln
=
listLast
(
list
);
listDelNode
(
list
,
ln
);
}
}
else
{
redisPanic
(
"Unknown list encoding"
);
}
if
(
l
ist
Length
(
list
)
==
0
)
deleteKey
(
c
->
db
,
c
->
argv
[
1
]);
if
(
lLength
(
o
)
==
0
)
deleteKey
(
c
->
db
,
c
->
argv
[
1
]);
server
.
dirty
++
;
addReply
(
c
,
shared
.
ok
);
}
...
...
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