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OBJECT command implemented

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antirez committed Apr 6, 2011
1 parent abdbfc1 commit cf6c3f4b04df7382aba7dd8c229cafcb29e19609
Showing with 42 additions and 1 deletion.
  1. +39 −0 src/object.c
  2. +2 −1 src/redis.c
  3. +1 −0 src/redis.h
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@@ -439,3 +439,42 @@ unsigned long estimateObjectIdleTime(robj *o) {
REDIS_LRU_CLOCK_RESOLUTION;
}
}
+
+/* This is an helper function for the DEBUG command. We need to lookup keys
+ * without any modification of LRU or other parameters. */
+robj *objectCommandLookup(redisClient *c, robj *key) {
+ dictEntry *de;
+
+ if ((de = dictFind(c->db->dict,key->ptr)) == NULL) return NULL;
+ return (robj*) dictGetEntryVal(de);
+}
+
+robj *objectCommandLookupOrReply(redisClient *c, robj *key, robj *reply) {
+ robj *o = objectCommandLookup(c,key);
+
+ if (!o) addReply(c, reply);
+ return o;
+}
+
+/* Object command allows to inspect the internals of an Redis Object.
+ * Usage: OBJECT <verb> ... arguments ... */
+void objectCommand(redisClient *c) {
+ robj *o;
+
+ if (!strcasecmp(c->argv[1]->ptr,"refcount") && c->argc == 3) {
+ if ((o = objectCommandLookupOrReply(c,c->argv[2],shared.nullbulk))
+ == NULL) return;
+ addReplyLongLong(c,o->refcount);
+ } else if (!strcasecmp(c->argv[1]->ptr,"encoding") && c->argc == 3) {
+ if ((o = objectCommandLookupOrReply(c,c->argv[2],shared.nullbulk))
+ == NULL) return;
+ addReplyBulkCString(c,strEncoding(o->encoding));
+ } else if (!strcasecmp(c->argv[1]->ptr,"idletime") && c->argc == 3) {
+ if ((o = objectCommandLookupOrReply(c,c->argv[2],shared.nullbulk))
+ == NULL) return;
+ addReplyLongLong(c,estimateObjectIdleTime(o));
+ } else {
+ addReplyError(c,"Syntax error. Try OBJECT (refcount|encoding|idletime)");
+ }
+}
+
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@@ -187,7 +187,8 @@ struct redisCommand readonlyCommandTable[] = {
{"punsubscribe",punsubscribeCommand,-1,0,NULL,0,0,0},
{"publish",publishCommand,3,REDIS_CMD_FORCE_REPLICATION,NULL,0,0,0},
{"watch",watchCommand,-2,0,NULL,0,0,0},
- {"unwatch",unwatchCommand,1,0,NULL,0,0,0}
+ {"unwatch",unwatchCommand,1,0,NULL,0,0,0},
+ {"object",objectCommand,-2,0,NULL,0,0,0}
};
/*============================ Utility functions ============================ */
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@@ -1008,6 +1008,7 @@ void punsubscribeCommand(redisClient *c);
void publishCommand(redisClient *c);
void watchCommand(redisClient *c);
void unwatchCommand(redisClient *c);
+void objectCommand(redisClient *c);
#if defined(__GNUC__)
void *calloc(size_t count, size_t size) __attribute__ ((deprecated));

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