Redis Notes - goofycoder/knowdb GitHub Wiki

redisDB struct

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;
} redisDb;

---

redisObject struct (the struct for key and value)

typedef struct redisObject {
    unsigned type:4;
    unsigned notused:2;     /* Not used */
    unsigned encoding:4;
    unsigned lru:22;        /* lru time (relative to server.lruclock) */
    int refcount;
    void *ptr;
} robj;

robj *key;   
robj *val;

---

dict struct

typedef struct dict {
    dictEntry **table;
    dictType *type;
    unsigned long size;
    unsigned long sizemask;
    unsigned long used;
    void *privdata;
} dict;

typedef struct dictEntry {
    void *key;
    void *val;
    struct dictEntry *next;
} dictEntry;