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load key from swap on key lookup

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antirez 2010-01-05 07:28:06 -05:00
parent a35ddf129c
commit 55cf8433e3
1 changed files with 15 additions and 4 deletions
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17
redis.c
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@ -488,6 +488,7 @@ static void unblockClient(redisClient *c);
static int handleClientsWaitingListPush(redisClient *c, robj *key, robj *ele);
static void vmInit(void);
static void vmMarkPagesFree(off_t page, off_t count);
static robj *vmLoadObject(robj *key);
static void authCommand(redisClient *c);
static void pingCommand(redisClient *c);
@ -2359,11 +2360,21 @@ static void decrRefCount(void *obj) {
static robj *lookupKey(redisDb *db, robj *key) {
dictEntry *de = dictFind(db->dict,key);
if (de) {
robj *o = dictGetEntryVal(de);
robj *key = dictGetEntryKey(de);
robj *val = dictGetEntryVal(de);
if (server.vm_enabled) {
if (key->storage == REDIS_VM_MEMORY) {
/* Update the access time of the key for the aging algorithm. */
if (server.vm_enabled) o->vm.atime = server.unixtime;
return o;
key->vm.atime = server.unixtime;
} else {
/* Our value was swapped on disk. Bring it at home. */
assert(val == NULL);
val = vmLoadObject(key);
dictGetEntryVal(de) = val;
}
}
return val;
} else {
return NULL;
}