redis.h

【对象】

typedef struct redisObject {

unsigned type:4;【REDIS_STRING,REDIS_LIST, HASH, SET, ZSET】

unsigned encoding:4;

unsigned lru:REDIS_LRU_BITS; /* lru time (relative to server.lruclock) */ //空转时长

int refcount; //引用计数

void *ptr;

} robj;

【数据库】

typedef struct redisDb {

dict *dict; /* The keyspace for this DB */

dict *expires; /* Timeout of keys with a timeout set */

dict *blocking_keys; /* Keys with clients waiting for data (BLPOP) */

dict *ready_keys; /* Blocked keys that received a PUSH */

dict *watched_keys; /* WATCHED keys for MULTI/EXEC CAS */

int id;

long long avg_ttl; /* Average TTL, just for stats */

} redisDb;

巴特西