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VM/direct-saving fixes

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This commit is contained in:
antirez 2011-04-20 17:48:46 +02:00
parent e8852d782d
commit 760dec3a6c
4 changed files with 23 additions and 15 deletions
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1
src/object.c
View File

@ -465,6 +465,7 @@ unsigned long estimateObjectIdleTime(robj *o) {
robj *objectCommandLookup(redisClient *c, robj *key) {
dictEntry *de;
if (server.vm_enabled) lookupKeyRead(c->db,key);
if ((de = dictFind(c->db->dict,key->ptr)) == NULL) return NULL;
return (robj*) dictGetEntryVal(de);
}

28
src/rdb.c
View File

@ -376,6 +376,20 @@ off_t rdbSavedObjectPages(robj *o) {
return (bytes+(server.vm_page_size-1))/server.vm_page_size;
}
int getObjectSaveType(robj *o) {
/* Fix the type id for specially encoded data types */
if (o->type == REDIS_HASH && o->encoding == REDIS_ENCODING_ZIPMAP)
return REDIS_HASH_ZIPMAP;
else if (o->type == REDIS_LIST && o->encoding == REDIS_ENCODING_ZIPLIST)
return REDIS_LIST_ZIPLIST;
else if (o->type == REDIS_SET && o->encoding == REDIS_ENCODING_INTSET)
return REDIS_SET_INTSET;
else if (o->type == REDIS_ZSET && o->encoding == REDIS_ENCODING_ZIPLIST)
return REDIS_ZSET_ZIPLIST;
else
return o->type;
}
/* Save the DB on disk. Return REDIS_ERR on error, REDIS_OK on success */
int rdbSave(char *filename) {
dictIterator *di = NULL;
@ -432,17 +446,8 @@ int rdbSave(char *filename) {
* handling if the value is swapped out. */
if (!server.vm_enabled || o->storage == REDIS_VM_MEMORY ||
o->storage == REDIS_VM_SWAPPING) {
int otype = o->type;
int otype = getObjectSaveType(o);
/* Fix the type id for specially encoded data types */
if (otype == REDIS_HASH && o->encoding == REDIS_ENCODING_ZIPMAP)
otype = REDIS_HASH_ZIPMAP;
else if (otype == REDIS_LIST &&
o->encoding == REDIS_ENCODING_ZIPLIST)
otype = REDIS_LIST_ZIPLIST;
else if (otype == REDIS_SET &&
o->encoding == REDIS_ENCODING_INTSET)
otype = REDIS_SET_INTSET;
/* Save type, key, value */
if (rdbSaveType(fp,otype) == -1) goto werr;
if (rdbSaveStringObject(fp,&key) == -1) goto werr;
@ -453,7 +458,8 @@ int rdbSave(char *filename) {
/* Get a preview of the object in memory */
po = vmPreviewObject(o);
/* Save type, key, value */
if (rdbSaveType(fp,po->type) == -1) goto werr;
if (rdbSaveType(fp,getObjectSaveType(po)) == -1)
goto werr;
if (rdbSaveStringObject(fp,&key) == -1) goto werr;
if (rdbSaveObject(fp,po) == -1) goto werr;
/* Remove the loaded object from memory */

1
src/redis.h
View File

@ -770,6 +770,7 @@ off_t rdbSavedObjectLen(robj *o);
off_t rdbSavedObjectPages(robj *o);
robj *rdbLoadObject(int type, FILE *fp);
void backgroundSaveDoneHandler(int statloc);
int getObjectSaveType(robj *o);
/* AOF persistence */
void flushAppendOnlyFile(void);

8
src/vm.c
View File

@ -30,12 +30,12 @@
/* Create a VM pointer object. This kind of objects are used in place of
* values in the key -> value hash table, for swapped out objects. */
vmpointer *createVmPointer(int vtype) {
vmpointer *createVmPointer(robj *o) {
vmpointer *vp = zmalloc(sizeof(vmpointer));
vp->type = REDIS_VMPOINTER;
vp->storage = REDIS_VM_SWAPPED;
vp->vtype = vtype;
vp->vtype = getObjectSaveType(o);
return vp;
}
@ -272,7 +272,7 @@ vmpointer *vmSwapObjectBlocking(robj *val) {
if (vmFindContiguousPages(&page,pages) == REDIS_ERR) return NULL;
if (vmWriteObjectOnSwap(val,page) == REDIS_ERR) return NULL;
vp = createVmPointer(val->type);
vp = createVmPointer(val);
vp->page = page;
vp->usedpages = pages;
decrRefCount(val); /* Deallocate the object from memory. */
@ -663,7 +663,7 @@ void vmThreadedIOCompletedJob(aeEventLoop *el, int fd, void *privdata,
printf("val->ptr: %s\n",(char*)j->val->ptr);
}
redisAssert(j->val->storage == REDIS_VM_SWAPPING);
vp = createVmPointer(j->val->type);
vp = createVmPointer(j->val);
vp->page = j->page;
vp->usedpages = j->pages;
dictGetEntryVal(de) = vp;