#define REDIS_RDB_ENC_INT32 2 /* 32 bit signed integer */
#define REDIS_RDB_ENC_LZF 3 /* string compressed with FASTLZ */
-/* Scheduled IO opeations flags. */
-#define REDIS_IO_LOAD 1
-#define REDIS_IO_SAVE 2
-#define REDIS_IO_LOADINPROG 4
-#define REDIS_IO_SAVEINPROG 8
-
-/* Generic IO flags */
-#define REDIS_IO_ONLYLOADS 1
-#define REDIS_IO_ASAP 2
-
-#define REDIS_MAX_COMPLETED_JOBS_PROCESSED 1
-#define REDIS_THREAD_STACK_SIZE (1024*1024*4)
-
/* Client flags */
#define REDIS_SLAVE 1 /* This client is a slave server */
#define REDIS_MASTER 2 /* This client is a master server */
#define REDIS_MONITOR 4 /* This client is a slave monitor, see MONITOR */
#define REDIS_MULTI 8 /* This client is in a MULTI context */
#define REDIS_BLOCKED 16 /* The client is waiting in a blocking operation */
-#define REDIS_IO_WAIT 32 /* The client is waiting for Virtual Memory I/O */
#define REDIS_DIRTY_CAS 64 /* Watched keys modified. EXEC will fail. */
#define REDIS_CLOSE_AFTER_REPLY 128 /* Close after writing entire reply. */
#define REDIS_UNBLOCKED 256 /* This client was unblocked and is stored in
#define REDIS_MAXMEMORY_ALLKEYS_RANDOM 4
#define REDIS_MAXMEMORY_NO_EVICTION 5
-/* Diskstore background saving thread states */
-#define REDIS_BGSAVE_THREAD_UNACTIVE 0
-#define REDIS_BGSAVE_THREAD_ACTIVE 1
-#define REDIS_BGSAVE_THREAD_DONE_OK 2
-#define REDIS_BGSAVE_THREAD_DONE_ERR 3
-
/* We can print the stacktrace, so our assert is defined this way: */
#define redisAssert(_e) ((_e)?(void)0 : (_redisAssert(#_e,__FILE__,__LINE__),_exit(1)))
#define redisPanic(_e) _redisPanic(#_e,__FILE__,__LINE__),_exit(1)
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 *io_keys; /* Keys with clients waiting for DS I/O */
- dict *io_negcache; /* Negative caching for disk store */
- dict *io_queued; /* Queued IO operations hash table */
dict *watched_keys; /* WATCHED keys for MULTI/EXEC CAS */
int id;
} redisDb;
struct redisServer {
/* General */
- pthread_t mainthread;
redisDb *db;
dict *commands; /* Command table hahs table */
aeEventLoop *el;
char *pidfile;
pid_t bgsavechildpid;
pid_t bgrewritechildpid;
- int bgsavethread_state;
- pthread_mutex_t bgsavethread_mutex;
- pthread_t bgsavethread;
sds bgrewritebuf; /* buffer taken by parent during oppend only rewrite */
sds aofbuf; /* AOF buffer, written before entering the event loop */
struct saveparam *saveparams;
int maxmemory_samples;
/* Blocked clients */
unsigned int bpop_blocked_clients;
- unsigned int cache_blocked_clients;
list *unblocked_clients; /* list of clients to unblock before next loop */
- list *cache_io_queue; /* IO operations queue */
- int cache_flush_delay; /* seconds to wait before flushing keys */
/* Sort parameters - qsort_r() is only available under BSD so we
* have to take this state global, in order to pass it to sortCompare() */
int sort_desc;
int sort_alpha;
int sort_bypattern;
- /* Virtual memory configuration */
- int ds_enabled; /* backend disk in redis.conf */
- char *ds_path; /* location of the disk store on disk */
- unsigned long long cache_max_memory;
/* Zip structure config */
size_t hash_max_zipmap_entries;
size_t hash_max_zipmap_value;
int arity;
int flags;
/* Use a function to determine keys arguments in a command line.
- * Used both for diskstore preloading and Redis Cluster. */
+ * Used for Redis Cluster redirect. */
redisGetKeysProc *getkeys_proc;
/* What keys should be loaded in background when calling this command? */
int firstkey; /* The first argument that's a key (0 = no keys) */
robj *pattern;
} redisSortOperation;
-/* DIsk store threaded I/O request message */
-#define REDIS_IOJOB_LOAD 0
-#define REDIS_IOJOB_SAVE 1
-
-typedef struct iojob {
- int type; /* Request type, REDIS_IOJOB_* */
- redisDb *db;/* Redis database */
- robj *key; /* This I/O request is about this key */
- robj *val; /* the value to swap for REDIS_IOJOB_SAVE, otherwise this
- * field is populated by the I/O thread for REDIS_IOJOB_LOAD. */
- time_t expire; /* Expire time for this key on REDIS_IOJOB_LOAD */
-} iojob;
-
-/* IO operations scheduled -- check dscache.c for more info */
-typedef struct ioop {
- int type;
- redisDb *db;
- robj *key;
- time_t ctime; /* This is the creation time of the entry. */
-} ioop;
-
/* Structure to hold list iteration abstraction. */
typedef struct {
robj *subject;
void populateCommandTable(void);
void resetCommandTableStats(void);
-/* Disk store */
-int dsOpen(void);
-int dsClose(void);
-int dsSet(redisDb *db, robj *key, robj *val, time_t expire);
-robj *dsGet(redisDb *db, robj *key, time_t *expire);
-int dsDel(redisDb *db, robj *key);
-int dsExists(redisDb *db, robj *key);
-void dsFlushDb(int dbid);
-int dsRdbSaveBackground(char *filename);
-int dsRdbSave(char *filename);
-
-/* Disk Store Cache */
-void dsInit(void);
-void vmThreadedIOCompletedJob(aeEventLoop *el, int fd, void *privdata, int mask);
-void lockThreadedIO(void);
-void unlockThreadedIO(void);
-void freeIOJob(iojob *j);
-void queueIOJob(iojob *j);
-void waitEmptyIOJobsQueue(void);
-void processAllPendingIOJobs(void);
-int blockClientOnSwappedKeys(redisClient *c, struct redisCommand *cmd);
-int dontWaitForSwappedKey(redisClient *c, robj *key);
-void handleClientsBlockedOnSwappedKey(redisDb *db, robj *key);
-int cacheFreeOneEntry(void);
-void cacheScheduleIOAddFlag(redisDb *db, robj *key, long flag);
-void cacheScheduleIODelFlag(redisDb *db, robj *key, long flag);
-int cacheScheduleIOGetFlags(redisDb *db, robj *key);
-void cacheScheduleIO(redisDb *db, robj *key, int type);
-void cacheCron(void);
-int cacheKeyMayExist(redisDb *db, robj *key);
-void cacheSetKeyMayExist(redisDb *db, robj *key);
-void cacheSetKeyDoesNotExist(redisDb *db, robj *key);
-void cacheForcePointInTime(void);
-
/* Set data type */
robj *setTypeCreate(robj *value);
int setTypeAdd(robj *subject, robj *value);
projects / redis.git / blobdiff