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Lazyfree: Hash converted to use plain SDS WIP 4.

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This commit is contained in:
antirez 2015-09-23 09:33:23 +02:00
parent 4a18352877
commit 974514b936
9 changed files with 76 additions and 70 deletions
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12
src/aof.c
View File

@ -928,17 +928,13 @@ static int rioWriteHashIteratorCursor(rio *r, hashTypeIterator *hi, int what) {
long long vll = LLONG_MAX;
hashTypeCurrentFromZiplist(hi, what, &vstr, &vlen, &vll);
if (vstr) {
if (vstr)
return rioWriteBulkString(r, (char*)vstr, vlen);
} else {
else
return rioWriteBulkLongLong(r, vll);
}
} else if (hi->encoding == OBJ_ENCODING_HT) {
robj *value;
hashTypeCurrentFromHashTable(hi, what, &value);
return rioWriteBulkObject(r, value);
sds value = hashTypeCurrentFromHashTable(hi, what);
return rioWriteBulkString(r, value, sdslen(value));
}
serverPanic("Unknown hash encoding");

8
src/db.c
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@ -420,11 +420,11 @@ void scanCallback(void *privdata, const dictEntry *de) {
} else if (o->type == OBJ_HASH) {
sds sdskey = dictGetKey(de);
sds sdsval = dictGetVal(de);
key = createStringObject(keysds,sdslen(keysds));
val = createStringObject(valsds,sdslen(valsds));
key = createStringObject(sdskey,sdslen(sdskey));
val = createStringObject(sdsval,sdslen(sdsval));
} else if (o->type == OBJ_ZSET) {
sds keysds = dictGetKey(de);
key = createStringObject(keysds,sdslen(keysds));
sds sdskey = dictGetKey(de);
key = createStringObject(sdskey,sdslen(sdskey));
val = createStringObjectFromLongDouble(*(double*)dictGetVal(de),0);
} else {
serverPanic("Type not handled in SCAN callback.");

18
src/debug.c
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@ -222,20 +222,18 @@ void computeDatasetDigest(unsigned char *final) {
serverPanic("Unknown sorted set encoding");
}
} else if (o->type == OBJ_HASH) {
hashTypeIterator *hi;
robj *obj;
hi = hashTypeInitIterator(o);
hashTypeIterator *hi = hashTypeInitIterator(o);
while (hashTypeNext(hi) != C_ERR) {
unsigned char eledigest[20];
sds sdsele;
memset(eledigest,0,20);
obj = hashTypeCurrentObject(hi,OBJ_HASH_KEY);
mixObjectDigest(eledigest,obj);
decrRefCount(obj);
obj = hashTypeCurrentObject(hi,OBJ_HASH_VALUE);
mixObjectDigest(eledigest,obj);
decrRefCount(obj);
sdsele = hashTypeCurrentObjectNewSds(hi,OBJ_HASH_KEY);
mixDigest(eledigest,sdsele,sdslen(sdsele));
sdsfree(sdsele);
sdsele = hashTypeCurrentObjectNewSds(hi,OBJ_HASH_VALUE);
mixDigest(eledigest,sdsele,sdslen(sdsele));
sdsfree(sdsele);
xorDigest(digest,eledigest,20);
}
hashTypeReleaseIterator(hi);

2
src/object.c
View File

@ -613,7 +613,7 @@ int strict_strtoll(char *str, long long *vp) {
long long value;
errno = 0;
value = strtoll(o->ptr, &eptr, 10);
value = strtoll(str, &eptr, 10);
if (isspace(str[0]) || eptr[0] != '\0' || errno == ERANGE) return C_ERR;
if (vp) *vp = value;
return C_OK;

2
src/server.c
View File

@ -607,7 +607,7 @@ dictType hashDictType = {
dictSdsHash, /* hash function */
NULL, /* key dup */
NULL, /* val dup */
dictsdsKeyCompare, /* key compare */
dictSdsKeyCompare, /* key compare */
dictSdsDestructor, /* key destructor */
dictSdsDestructor /* val destructor */
};

13
src/server.h
View File

@ -1333,10 +1333,9 @@ void setTypeConvert(robj *subject, int enc);
void hashTypeConvert(robj *o, int enc);
void hashTypeTryConversion(robj *subject, robj **argv, int start, int end);
void hashTypeTryObjectEncoding(robj *subject, robj **o1, robj **o2);
robj *hashTypeGetObject(robj *o, robj *key);
int hashTypeExists(robj *o, robj *key);
int hashTypeSet(robj *o, robj *key, robj *value);
int hashTypeDelete(robj *o, robj *key);
int hashTypeExists(robj *o, sds key);
int hashTypeSet(robj *o, sds key, sds value);
int hashTypeDelete(robj *o, sds key);
unsigned long hashTypeLength(robj *o);
hashTypeIterator *hashTypeInitIterator(robj *subject);
void hashTypeReleaseIterator(hashTypeIterator *hi);
@ -1345,9 +1344,11 @@ void hashTypeCurrentFromZiplist(hashTypeIterator *hi, int what,
unsigned char **vstr,
unsigned int *vlen,
long long *vll);
void hashTypeCurrentFromHashTable(hashTypeIterator *hi, int what, robj **dst);
robj *hashTypeCurrentObject(hashTypeIterator *hi, int what);
sds hashTypeCurrentFromHashTable(hashTypeIterator *hi, int what);
void hashTypeCurrentObject(hashTypeIterator *hi, int what, unsigned char **vstr, unsigned int *vlen, long long *vll);
sds hashTypeCurrentObjectNewSds(hashTypeIterator *hi, int what);
robj *hashTypeLookupWriteOrCreate(client *c, robj *key);
robj *hashTypeGetValueObject(robj *o, sds field);
/* Pub / Sub */
int pubsubUnsubscribeAllChannels(client *c, int notify);

6
src/sort.c
View File

@ -112,9 +112,9 @@ robj *lookupKeyByPattern(redisDb *db, robj *pattern, robj *subst) {
if (fieldobj) {
if (o->type != OBJ_HASH) goto noobj;
/* Retrieve value from hash by the field name. This operation
* already increases the refcount of the returned object. */
o = hashTypeGetObject(o, fieldobj);
/* Retrieve value from hash by the field name. The returend object
* is a new object with refcount already incremented. */
o = hashTypeGetValueObject(o, fieldobj->ptr);
} else {
if (o->type != OBJ_STRING) goto noobj;

73
src/t_hash.c
View File

@ -67,7 +67,7 @@ int hashTypeGetFromZiplist(robj *o, sds field,
zl = o->ptr;
fptr = ziplistIndex(zl, ZIPLIST_HEAD);
if (fptr != NULL) {
fptr = ziplistFind(fptr, field, sdslen(field), 1);
fptr = ziplistFind(fptr, (unsigned char*)field, sdslen(field), 1);
if (fptr != NULL) {
/* Grab pointer to the value (fptr points to the field) */
vptr = ziplistNext(zl, fptr);
@ -106,15 +106,15 @@ sds hashTypeGetFromHashTable(robj *o, sds field) {
* If *vll is populated *vstr is set to NULL, so the caller
* can always check the function return by checking the return value
* for C_OK and checking if vll (or vstr) is NULL. */
int hashTypeGetObject(robj *o, sds field, unsigned char **vstr, unsigned int *vlen, long long *vll) {
int hashTypeGetValue(robj *o, sds field, unsigned char **vstr, unsigned int *vlen, long long *vll) {
if (o->encoding == OBJ_ENCODING_ZIPLIST) {
*vstr = NULL;
if (hashTypeGetFromZiplist(o, field, vstr, vlen, vll) == 0)
return C_OK;
} else if (o->encoding == OBJ_ENCODING_HT) {
sds value;
if (value = hashTypeGetFromHashTable(o, field) != NULL) {
*vstr = value;
if ((value = hashTypeGetFromHashTable(o, field)) != NULL) {
*vstr = (unsigned char*) value;
*vlen = sdslen(value);
return C_OK;
}
@ -124,6 +124,20 @@ int hashTypeGetObject(robj *o, sds field, unsigned char **vstr, unsigned int *vl
return C_ERR;
}
/* Like hashTypeGetValue() but returns a Redis object, which is useful for
* interaction with the hash type outside t_hash.c.
* The function returns NULL if the field is not found in the hash. Otherwise
* a newly allocated string object with the value is returned. */
robj *hashTypeGetValueObject(robj *o, sds field) {
unsigned char *vstr;
unsigned int vlen;
long long vll;
if (hashTypeGetValue(o,field,&vstr,&vlen,&vll) == C_ERR) return NULL;
if (vstr) return createStringObject((char*)vstr,vlen);
else return createStringObjectFromLongLong(vll);
}
/* Higher level function using hashTypeGet*() to return the length of the
* object associated with the requested field, or 0 if the field does not
* exist. */
@ -157,8 +171,6 @@ int hashTypeExists(robj *o, sds field) {
if (hashTypeGetFromZiplist(o, field, &vstr, &vlen, &vll) == 0) return 1;
} else if (o->encoding == OBJ_ENCODING_HT) {
robj *aux;
if (hashTypeGetFromHashTable(o, field) != NULL) return 1;
} else {
serverPanic("Unknown hash encoding");
@ -178,7 +190,7 @@ int hashTypeSet(robj *o, sds field, sds value) {
zl = o->ptr;
fptr = ziplistIndex(zl, ZIPLIST_HEAD);
if (fptr != NULL) {
fptr = ziplistFind(fptr, field, sdslen(field), 1);
fptr = ziplistFind(fptr, (unsigned char*)field, sdslen(field), 1);
if (fptr != NULL) {
/* Grab pointer to the value (fptr points to the field) */
vptr = ziplistNext(zl, fptr);
@ -189,14 +201,17 @@ int hashTypeSet(robj *o, sds field, sds value) {
zl = ziplistDelete(zl, &vptr);
/* Insert new value */
zl = ziplistInsert(zl, vptr, value->ptr, sdslen(value->ptr));
zl = ziplistInsert(zl, vptr, (unsigned char*)value,
sdslen(value));
}
}
if (!update) {
/* Push new field/value pair onto the tail of the ziplist */
zl = ziplistPush(zl, field, sdslen(field), ZIPLIST_TAIL);
zl = ziplistPush(zl, value, sdslen(value), ZIPLIST_TAIL);
zl = ziplistPush(zl, (unsigned char*)field, sdslen(field),
ZIPLIST_TAIL);
zl = ziplistPush(zl, (unsigned char*)value, sdslen(value),
ZIPLIST_TAIL);
}
o->ptr = zl;
@ -210,7 +225,7 @@ int hashTypeSet(robj *o, sds field, sds value) {
dictGetVal(de) = sdsdup(value);
update = 1;
} else {
dictAdd(o->ptr,sdsdup(key),sdsdup(value));
dictAdd(o->ptr,sdsdup(field),sdsdup(value));
}
} else {
serverPanic("Unknown hash encoding");
@ -229,7 +244,7 @@ int hashTypeDelete(robj *o, sds field) {
zl = o->ptr;
fptr = ziplistIndex(zl, ZIPLIST_HEAD);
if (fptr != NULL) {
fptr = ziplistFind(fptr, field, sdslen(field), 1);
fptr = ziplistFind(fptr, (unsigned char*)field, sdslen(field), 1);
if (fptr != NULL) {
zl = ziplistDelete(zl,&fptr);
zl = ziplistDelete(zl,&fptr);
@ -237,9 +252,6 @@ int hashTypeDelete(robj *o, sds field) {
deleted = 1;
}
}
decrRefCount(field);
} else if (o->encoding == OBJ_ENCODING_HT) {
if (dictDelete((dict*)o->ptr, field) == C_OK) {
deleted = 1;
@ -376,7 +388,7 @@ void hashTypeCurrentObject(hashTypeIterator *hi, int what, unsigned char **vstr,
hashTypeCurrentFromZiplist(hi, what, vstr, vlen, vll);
} else if (hi->encoding == OBJ_ENCODING_HT) {
sds ele = hashTypeCurrentFromHashTable(hi, what);
*vstr = ele;
*vstr = (unsigned char*) ele;
*vlen = sdslen(ele);
} else {
serverPanic("Unknown hash encoding");
@ -424,14 +436,11 @@ void hashTypeConvertZiplist(robj *o, int enc) {
dict = dictCreate(&hashDictType, NULL);
while (hashTypeNext(hi) != C_ERR) {
unsigned char *vstr;
unsigned int vlen;
long long vll;
sds key, value;
key = hashTypeCurrentObjectNewSds(hi,OBJ_HASH_KEY);
value = hashTypeCurrentObjectNewSds(hi,OBJ_HASH_VALUE);
ret = dictAdd(dict, field, value);
ret = dictAdd(dict, key, value);
if (ret != DICT_OK) {
serverLogHexDump(LL_WARNING,"ziplist with dup elements dump",
o->ptr,ziplistBlobLen(o->ptr));
@ -515,17 +524,17 @@ void hincrbyCommand(client *c) {
robj *o;
sds new;
unsigned char *vstr;
unsigned int *lven;
unsigned int vlen;
if (getLongLongFromObjectOrReply(c,c->argv[3],&incr,NULL) != C_OK) return;
if ((o = hashTypeLookupWriteOrCreate(c,c->argv[1])) == NULL) return;
if (hashTypeGetObject(o,c->argv[2],&vstr,&vlen,&value) == C_OK) {
if (hashTypeGetValue(o,c->argv[2]->ptr,&vstr,&vlen,&value) == C_OK) {
if (vstr) {
if (string2ll(vstr,vlen,&value) == 0) {
if (string2ll((char*)vstr,vlen,&value) == 0) {
addReplyError(c,"hash value is not an integer");
return;
}
} /* Else hashTypeGetObject() already stored it into &value */
} /* Else hashTypeGetValue() already stored it into &value */
} else {
value = 0;
}
@ -551,13 +560,13 @@ void hincrbyfloatCommand(client *c) {
robj *o;
sds new;
unsigned char *vstr;
unsigned int *lven;
unsigned int vlen;
if (getLongDoubleFromObjectOrReply(c,c->argv[3],&incr,NULL) != C_OK) return;
if (getDoubleFromObjectOrReply(c,c->argv[3],&incr,NULL) != C_OK) return;
if ((o = hashTypeLookupWriteOrCreate(c,c->argv[1])) == NULL) return;
if (hashTypeGetObject(o,c->argv[2],vstr,vlen,&ll) == C_OK) {
if (hashTypeGetValue(o,c->argv[2]->ptr,&vstr,&vlen,&ll) == C_OK) {
if (vstr) {
if (string2d(vstr,vlen,&value) == 0) {
if (string2d((char*)vstr,vlen,&value) == 0) {
addReplyError(c,"hash value is not an integer");
return;
}
@ -571,9 +580,9 @@ void hincrbyfloatCommand(client *c) {
value += incr;
char buf[256];
int len = ld2string(buf,sizeof(buf),value,humanfriendly);
int len = ld2string(buf,sizeof(buf),value,1);
new = sdsnewlen(buf,len);
hashTypeSet(o,c->argv[2],new);
hashTypeSet(o,c->argv[2]->ptr,new);
addReplyBulkSds(c,new);
signalModifiedKey(c->db,c->argv[1]);
notifyKeyspaceEvent(NOTIFY_HASH,"hincrbyfloat",c->argv[1],c->db->id);
@ -587,12 +596,10 @@ void hincrbyfloatCommand(client *c) {
newobj = createRawStringObject(buf,len);
rewriteClientCommandArgument(c,0,aux);
decrRefCount(aux);
rewriteClientCommandArgument(c,3,new);
rewriteClientCommandArgument(c,3,newobj);
decrRefCount(newobj);
}
/* XXX From here. */
static void addHashFieldToReply(client *c, robj *o, sds field) {
int ret;

12
src/util.c
View File

@ -427,12 +427,17 @@ int string2l(const char *s, size_t slen, long *lval) {
* a double: no spaces or other characters before or after the string
* representing the number are accepted. */
int string2d(const char *s, size_t slen, double *dp) {
char buf[256];
double value;
char *eptr;
if (slen >= sizeof(buf)) return 0;
memcpy(buf,s,slen);
buf[slen] = '\0';
errno = 0;
value = strtod(o->ptr, &eptr);
if (isspace(((char*)o->ptr)[0]) ||
eptr[0] != '\0' ||
value = strtod(buf, &eptr);
if (isspace(buf[0]) || eptr[0] != '\0' ||
(errno == ERANGE &&
(value == HUGE_VAL || value == -HUGE_VAL || value == 0)) ||
errno == EINVAL ||
@ -493,7 +498,6 @@ int d2string(char *buf, size_t len, double value) {
* The function returns the length of the string or zero if there was not
* enough buffer room to store it. */
int ld2string(char *buf, size_t len, long double value, int humanfriendly) {
char buf[256];
size_t l;
if (isinf(value)) {