#define REDIS_STATIC_ARGS 8
#define REDIS_DEFAULT_DBNUM 16
#define REDIS_CONFIGLINE_MAX 1024
-#define REDIS_OBJFREELIST_MAX 1000000 /* Max number of objects to cache */
#define REDIS_MAX_SYNC_TIME 60 /* Slave can't take more to sync */
#define REDIS_EXPIRELOOKUPS_PER_CRON 10 /* lookup 10 expires per loop */
#define REDIS_MAX_WRITE_PER_EVENT (1024*64)
/* Hash table parameters */
#define REDIS_HT_MINFILL 10 /* Minimal hash table fill 10% */
-/* Command flags */
-#define REDIS_CMD_BULK 1 /* Bulk write command */
-#define REDIS_CMD_INLINE 2 /* Inline command */
-/* REDIS_CMD_DENYOOM reserves a longer comment: all the commands marked with
- this flags will return an error when the 'maxmemory' option is set in the
- config file and the server is using more than maxmemory bytes of memory.
- In short this commands are denied on low memory conditions. */
-#define REDIS_CMD_DENYOOM 4
-#define REDIS_CMD_FORCE_REPLICATION 8 /* Force replication even if dirty is 0 */
+/* Command flags:
+ * REDIS_CMD_DENYOOM:
+ * Commands marked with this flag will return an error when 'maxmemory' is
+ * set and the server is using more than 'maxmemory' bytes of memory.
+ * In short: commands with this flag are denied on low memory conditions.
+ * REDIS_CMD_FORCE_REPLICATION:
+ * Force replication even if dirty is 0. */
+#define REDIS_CMD_DENYOOM 4
+#define REDIS_CMD_FORCE_REPLICATION 8
/* Object types */
#define REDIS_STRING 0
#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. */
+
+/* Client request types */
+#define REDIS_REQ_INLINE 1
+#define REDIS_REQ_MULTIBULK 2
/* Slave replication state - slave side */
#define REDIS_REPL_NONE 0 /* No active replication */
#define REDIS_REPL_CONNECT 1 /* Must connect to master */
-#define REDIS_REPL_CONNECTED 2 /* Connected to master */
+#define REDIS_REPL_TRANSFER 2 /* Receiving .rdb from master */
+#define REDIS_REPL_CONNECTED 3 /* Connected to master */
/* Slave replication state - from the point of view of master
* Note that in SEND_BULK and ONLINE state the slave receives new updates
#define REDIS_MAXMEMORY_VOLATILE_RANDOM 2
#define REDIS_MAXMEMORY_ALLKEYS_LRU 3
#define REDIS_MAXMEMORY_ALLKEYS_RANDOM 4
+#define REDIS_MAXMEMORY_NO_EVICTION 5
/* We can print the stacktrace, so our assert is defined this way: */
#define redisAssert(_e) ((_e)?(void)0 : (_redisAssert(#_e,__FILE__,__LINE__),_exit(1)))
int count; /* Total number of MULTI commands */
} multiState;
+typedef struct blockingState {
+ robj **keys; /* The key we are waiting to terminate a blocking
+ * operation such as BLPOP. Otherwise NULL. */
+ int count; /* Number of blocking keys */
+ time_t timeout; /* Blocking operation timeout. If UNIX current time
+ * is >= timeout then the operation timed out. */
+ robj *target; /* The key that should receive the element,
+ * for BRPOPLPUSH. */
+} blockingState;
+
/* With multiplexing we need to take per-clinet state.
* Clients are taken in a liked list. */
typedef struct redisClient {
redisDb *db;
int dictid;
sds querybuf;
- robj **argv, **mbargv;
- char *newline; /* pointing to the detected newline in querybuf */
- int argc, mbargc;
- long bulklen; /* bulk read len. -1 if not in bulk read mode */
- int multibulk; /* multi bulk command format active */
+ int argc;
+ robj **argv;
+ int reqtype;
+ int multibulklen; /* number of multi bulk arguments left to read */
+ long bulklen; /* length of bulk argument in multi bulk request */
list *reply;
int sentlen;
time_t lastinteraction; /* time of the last interaction, used for timeout */
long repldboff; /* replication DB file offset */
off_t repldbsize; /* replication DB file size */
multiState mstate; /* MULTI/EXEC state */
- robj **blocking_keys; /* The key we are waiting to terminate a blocking
- * operation such as BLPOP. Otherwise NULL. */
- int blocking_keys_num; /* Number of blocking keys */
- time_t blockingto; /* Blocking operation timeout. If UNIX current time
- * is >= blockingto then the operation timed out. */
+ blockingState bpop; /* blocking state */
list *io_keys; /* Keys this client is waiting to be loaded from the
* swap file in order to continue. */
list *watched_keys; /* Keys WATCHED for MULTI/EXEC CAS */
robj *crlf, *ok, *err, *emptybulk, *czero, *cone, *cnegone, *pong, *space,
*colon, *nullbulk, *nullmultibulk, *queued,
*emptymultibulk, *wrongtypeerr, *nokeyerr, *syntaxerr, *sameobjecterr,
- *outofrangeerr, *plus,
+ *outofrangeerr, *loadingerr, *plus,
*select0, *select1, *select2, *select3, *select4,
*select5, *select6, *select7, *select8, *select9,
*messagebulk, *pmessagebulk, *subscribebulk, *unsubscribebulk, *mbulk3,
struct redisServer {
pthread_t mainthread;
int port;
- int fd;
+ char *bindaddr;
+ char *unixsocket;
+ int ipfd;
+ int sofd;
redisDb *db;
long long dirty; /* changes to DB from the last save */
long long dirty_before_bgsave; /* used to restore dirty on failed BGSAVE */
list *clients;
+ dict *commands; /* Command table hahs table */
+ /* RDB / AOF loading information */
+ int loading;
+ off_t loading_total_bytes;
+ off_t loading_loaded_bytes;
+ time_t loading_start_time;
+ /* Fast pointers to often looked up command */
+ struct redisCommand *delCommand, *multiCommand;
list *slaves, *monitors;
char neterr[ANET_ERR_LEN];
aeEventLoop *el;
int cronloops; /* number of times the cron function run */
- list *objfreelist; /* A list of freed objects to avoid malloc() */
time_t lastsave; /* Unix time of last save succeeede */
/* Fields used only for stats */
time_t stat_starttime; /* server start time */
struct saveparam *saveparams;
int saveparamslen;
char *logfile;
- char *bindaddr;
char *dbfilename;
char *appendfilename;
char *requirepass;
int activerehashing;
/* Replication related */
int isslave;
+ /* Slave specific fields */
char *masterauth;
char *masterhost;
int masterport;
redisClient *master; /* client that is master for this slave */
- int replstate;
+ int replstate; /* replication status if the instance is a slave */
+ off_t repl_transfer_left; /* bytes left reading .rdb */
+ int repl_transfer_s; /* slave -> master SYNC socket */
+ int repl_transfer_fd; /* slave -> master SYNC temp file descriptor */
+ char *repl_transfer_tmpfile; /* slave-> master SYNC temp file name */
+ time_t repl_transfer_lastio; /* unix time of the latest read, for timeout */
+ int repl_serve_stale_data; /* Serve stale data when link is down? */
+ /* Limits */
unsigned int maxclients;
unsigned long long maxmemory;
int maxmemory_policy;
int maxmemory_samples;
- unsigned int blpop_blocked_clients;
+ /* Blocked clients */
+ unsigned int bpop_blocked_clients;
unsigned int vm_blocked_clients;
/* Sort parameters - qsort_r() is only available under BSD so we
* have to take this state global, in order to pass it to sortCompare() */
list *io_processed; /* List of VM I/O jobs already processed */
list *io_ready_clients; /* Clients ready to be unblocked. All keys loaded */
pthread_mutex_t io_mutex; /* lock to access io_jobs/io_done/io_thread_job */
- pthread_mutex_t obj_freelist_mutex; /* safe redis objects creation/free */
pthread_mutex_t io_swapfile_mutex; /* So we can lseek + write */
pthread_attr_t io_threads_attr; /* attributes for threads creation */
int io_active_threads; /* Number of running I/O threads */
dict *pubsub_channels; /* Map channels to list of subscribed clients */
list *pubsub_patterns; /* A list of pubsub_patterns */
/* Misc */
- FILE *devnull;
unsigned lruclock:22; /* clock incrementing every minute, for LRU */
unsigned lruclock_padding:10;
};
void setDeferredMultiBulkLength(redisClient *c, void *node, long length);
void addReplySds(redisClient *c, sds s);
void processInputBuffer(redisClient *c);
-void acceptHandler(aeEventLoop *el, int fd, void *privdata, int mask);
+void acceptTcpHandler(aeEventLoop *el, int fd, void *privdata, int mask);
+void acceptUnixHandler(aeEventLoop *el, int fd, void *privdata, int mask);
void readQueryFromClient(aeEventLoop *el, int fd, void *privdata, int mask);
void addReplyBulk(redisClient *c, robj *obj);
void addReplyBulkCString(redisClient *c, char *s);
robj *tryObjectEncoding(robj *o);
robj *getDecodedObject(robj *o);
size_t stringObjectLen(robj *o);
-int tryFreeOneObjectFromFreelist(void);
robj *createStringObjectFromLongLong(long long value);
robj *createListObject(void);
robj *createZiplistObject(void);
void replicationFeedMonitors(list *monitors, int dictid, robj **argv, int argc);
int syncWithMaster(void);
void updateSlavesWaitingBgsave(int bgsaveerr);
+void replicationCron(void);
+
+/* Generic persistence functions */
+void startLoading(FILE *fp);
+void loadingProgress(off_t pos);
+void stopLoading(void);
/* RDB persistence */
int rdbLoad(char *filename);
void rdbRemoveTempFile(pid_t childpid);
int rdbSave(char *filename);
int rdbSaveObject(FILE *fp, robj *o);
-off_t rdbSavedObjectPages(robj *o, FILE *fp);
-off_t rdbSavedObjectLen(robj *o, FILE *fp);
+off_t rdbSavedObjectLen(robj *o);
+off_t rdbSavedObjectPages(robj *o);
robj *rdbLoadObject(int type, FILE *fp);
void backgroundSaveDoneHandler(int statloc);
void freeMemoryIfNeeded(void);
int processCommand(redisClient *c);
void setupSigSegvAction(void);
-struct redisCommand *lookupCommand(char *name);
+struct redisCommand *lookupCommand(sds name);
+struct redisCommand *lookupCommandByCString(char *s);
void call(redisClient *c, struct redisCommand *cmd);
int prepareForShutdown();
void redisLog(int level, const char *fmt, ...);
void updateDictResizePolicy(void);
int htNeedsResize(dict *dict);
void oom(const char *msg);
+void populateCommandTable(void);
/* Virtual Memory */
void vmInit(void);
void flushallCommand(redisClient *c);
void sortCommand(redisClient *c);
void lremCommand(redisClient *c);
-void rpoplpushcommand(redisClient *c);
+void rpoplpushCommand(redisClient *c);
void infoCommand(redisClient *c);
void mgetCommand(redisClient *c);
void monitorCommand(redisClient *c);
void discardCommand(redisClient *c);
void blpopCommand(redisClient *c);
void brpopCommand(redisClient *c);
+void brpoplpushCommand(redisClient *c);
void appendCommand(redisClient *c);
void substrCommand(redisClient *c);
void strlenCommand(redisClient *c);
projects / redis.git / blobdiff