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Persistence code for encoded sorted sets

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This commit is contained in:
Pieter Noordhuis 2011-03-09 13:16:38 +01:00
parent d1c920c538
commit e12b27acf7
2 changed files with 33 additions and 15 deletions
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46
src/rdb.c
View File

@ -302,24 +302,33 @@ int rdbSaveObject(FILE *fp, robj *o) {
redisPanic("Unknown set encoding");
}
} else if (o->type == REDIS_ZSET) {
/* Save a set value */
zset *zs = o->ptr;
dictIterator *di = dictGetIterator(zs->dict);
dictEntry *de;
/* Save a sorted set value */
if (o->encoding == REDIS_ENCODING_ZIPLIST) {
size_t l = ziplistBlobLen((unsigned char*)o->ptr);
if ((n = rdbSaveLen(fp,dictSize(zs->dict))) == -1) return -1;
nwritten += n;
while((de = dictNext(di)) != NULL) {
robj *eleobj = dictGetEntryKey(de);
double *score = dictGetEntryVal(de);
if ((n = rdbSaveStringObject(fp,eleobj)) == -1) return -1;
if ((n = rdbSaveRawString(fp,o->ptr,l)) == -1) return -1;
nwritten += n;
if ((n = rdbSaveDoubleValue(fp,*score)) == -1) return -1;
} else if (o->encoding == REDIS_ENCODING_RAW) {
zset *zs = o->ptr;
dictIterator *di = dictGetIterator(zs->dict);
dictEntry *de;
if ((n = rdbSaveLen(fp,dictSize(zs->dict))) == -1) return -1;
nwritten += n;
while((de = dictNext(di)) != NULL) {
robj *eleobj = dictGetEntryKey(de);
double *score = dictGetEntryVal(de);
if ((n = rdbSaveStringObject(fp,eleobj)) == -1) return -1;
nwritten += n;
if ((n = rdbSaveDoubleValue(fp,*score)) == -1) return -1;
nwritten += n;
}
dictReleaseIterator(di);
} else {
redisPanic("Unknown sorted set enoding");
}
dictReleaseIterator(di);
} else if (o->type == REDIS_HASH) {
/* Save a hash value */
if (o->encoding == REDIS_ENCODING_ZIPMAP) {
@ -386,6 +395,8 @@ int rdbSaveKeyValuePair(FILE *fp, robj *key, robj *val,
vtype = REDIS_LIST_ZIPLIST;
else if (vtype == REDIS_SET && val->encoding == REDIS_ENCODING_INTSET)
vtype = REDIS_SET_INTSET;
else if (vtype == REDIS_ZSET && val->encoding == REDIS_ENCODING_ZIPLIST)
vtype = REDIS_ZSET_ZIPLIST;
/* Save type, key, value */
if (rdbSaveType(fp,vtype) == -1) return -1;
if (rdbSaveStringObject(fp,key) == -1) return -1;
@ -811,7 +822,8 @@ robj *rdbLoadObject(int type, FILE *fp) {
}
} else if (type == REDIS_HASH_ZIPMAP ||
type == REDIS_LIST_ZIPLIST ||
type == REDIS_SET_INTSET)
type == REDIS_SET_INTSET ||
type == REDIS_ZSET_ZIPLIST)
{
robj *aux = rdbLoadStringObject(fp);
@ -846,6 +858,10 @@ robj *rdbLoadObject(int type, FILE *fp) {
if (intsetLen(o->ptr) > server.set_max_intset_entries)
setTypeConvert(o,REDIS_ENCODING_HT);
break;
case REDIS_ZSET_ZIPLIST:
o->type = REDIS_ZSET;
o->encoding = REDIS_ENCODING_ZIPLIST;
break;
default:
redisPanic("Unknown enoding");
break;

2
src/redis.h
View File

@ -70,10 +70,12 @@
#define REDIS_ZSET 3
#define REDIS_HASH 4
#define REDIS_VMPOINTER 8
/* Object types only used for persistence in .rdb files */
#define REDIS_HASH_ZIPMAP 9
#define REDIS_LIST_ZIPLIST 10
#define REDIS_SET_INTSET 11
#define REDIS_ZSET_ZIPLIST 12
/* Objects encoding. Some kind of objects like Strings and Hashes can be
* internally represented in multiple ways. The 'encoding' field of the object