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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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