X-Git-Url: https://git.saurik.com/redis.git/blobdiff_plain/16d778780eb865deefb2bfa024aef50926917eac..255eebe22167e00f74e359bc71718225d6bd70c8:/src/object.c

diff --git a/src/object.c b/src/object.c
index 4374a07c..c384d600 100644
--- a/src/object.c
+++ b/src/object.c
@@ -21,7 +21,6 @@ robj *createObject(int type, void *ptr) {
     /* The following is only needed if VM is active, but since the conditional
      * is probably more costly than initializing the field it's better to
      * have every field properly initialized anyway. */
-    o->storage = REDIS_DS_MEMORY;
     return o;
 }
 
@@ -32,6 +31,7 @@ robj *createStringObject(char *ptr, size_t len) {
 robj *createStringObjectFromLongLong(long long value) {
     robj *o;
     if (value >= 0 && value < REDIS_SHARED_INTEGERS &&
+        !server.ds_enabled &&
         pthread_equal(pthread_self(),server.mainthread)) {
         incrRefCount(shared.integers[value]);
         o = shared.integers[value];
@@ -93,12 +93,18 @@ robj *createHashObject(void) {
 
 robj *createZsetObject(void) {
     zset *zs = zmalloc(sizeof(*zs));
-
     zs->dict = dictCreate(&zsetDictType,NULL);
     zs->zsl = zslCreate();
     return createObject(REDIS_ZSET,zs);
 }
 
+robj *createZsetZiplistObject(void) {
+    unsigned char *zl = ziplistNew();
+    robj *o = createObject(REDIS_ZSET,zl);
+    o->encoding = REDIS_ENCODING_ZIPLIST;
+    return o;
+}
+
 void freeStringObject(robj *o) {
     if (o->encoding == REDIS_ENCODING_RAW) {
         sdsfree(o->ptr);
@@ -132,11 +138,20 @@ void freeSetObject(robj *o) {
 }
 
 void freeZsetObject(robj *o) {
-    zset *zs = o->ptr;
-
-    dictRelease(zs->dict);
-    zslFree(zs->zsl);
-    zfree(zs);
+    zset *zs;
+    switch (o->encoding) {
+    case REDIS_ENCODING_RAW:
+        zs = o->ptr;
+        dictRelease(zs->dict);
+        zslFree(zs->zsl);
+        zfree(zs);
+        break;
+    case REDIS_ENCODING_ZIPLIST:
+        zfree(o->ptr);
+        break;
+    default:
+        redisPanic("Unknown sorted set encoding");
+    }
 }
 
 void freeHashObject(robj *o) {
@@ -162,9 +177,6 @@ void decrRefCount(void *obj) {
 
     if (o->refcount <= 0) redisPanic("decrRefCount against refcount <= 0");
     if (--(o->refcount) == 0) {
-        /* DS_SAVING objects should always have a reference in the
-         * IO Job structure. So we should never reach this state. */
-        redisAssert(o->storage != REDIS_DS_SAVING);
         switch(o->type) {
         case REDIS_STRING: freeStringObject(o); break;
         case REDIS_LIST: freeListObject(o); break;
@@ -208,16 +220,16 @@ robj *tryObjectEncoding(robj *o) {
     /* Ok, this object can be encoded...
      *
      * Can I use a shared object? Only if the object is inside a given
-     * range and if this is the main thread, since when VM is enabled we
-     * have the constraint that I/O thread should only handle non-shared
-     * objects, in order to avoid race conditions (we don't have per-object
-     * locking).
+     * range and if the back end in use is in-memory. For disk store every
+     * object in memory used as value should be independent.
      *
      * Note that we also avoid using shared integers when maxmemory is used
-     * because very object needs to have a private LRU field for the LRU
+     * because every object needs to have a private LRU field for the LRU
      * algorithm to work well. */
-    if (server.maxmemory == 0 && value >= 0 && value < REDIS_SHARED_INTEGERS &&
-        pthread_equal(pthread_self(),server.mainthread)) {
+    if (!server.ds_enabled &&
+        server.maxmemory == 0 && value >= 0 && value < REDIS_SHARED_INTEGERS &&
+        pthread_equal(pthread_self(),server.mainthread))
+    {
         decrRefCount(o);
         incrRefCount(shared.integers[value]);
         return shared.integers[value];