X-Git-Url: https://git.saurik.com/redis.git/blobdiff_plain/6eaad66373982aa9c1c0ff6b584c542670548d0e..03af999cb0befed9d2556c2df1eb0511de2d96d2:/src/redis.h diff --git a/src/redis.h b/src/redis.h index b15bb370..cdddb601 100644 --- a/src/redis.h +++ b/src/redis.h @@ -50,11 +50,6 @@ #define REDIS_REPLY_CHUNK_BYTES (5*1500) /* 5 TCP packets with default MTU */ #define REDIS_MAX_LOGMSG_LEN 1024 /* Default maximum length of syslog messages */ -/* If more then REDIS_WRITEV_THRESHOLD write packets are pending use writev */ -#define REDIS_WRITEV_THRESHOLD 3 -/* Max number of iovecs used for each writev call */ -#define REDIS_WRITEV_IOVEC_COUNT 256 - /* Hash table parameters */ #define REDIS_HT_MINFILL 10 /* Minimal hash table fill 10% */ @@ -75,6 +70,10 @@ #define REDIS_ZSET 3 #define REDIS_HASH 4 #define REDIS_VMPOINTER 8 +/* Object types only used for persistence in .rdb files */ +#define REDIS_HASH_ZIPMAP 9 +#define REDIS_LIST_ZIPLIST 10 +#define REDIS_SET_INTSET 11 /* Objects encoding. Some kind of objects like Strings and Hashes can be * internally represented in multiple ways. The 'encoding' field of the object @@ -125,6 +124,10 @@ #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) @@ -137,6 +140,8 @@ #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 + server.unblocked_clients */ /* Client request types */ #define REDIS_REQ_INLINE 1 @@ -185,8 +190,8 @@ #define APPENDFSYNC_EVERYSEC 2 /* Zip structure related defaults */ -#define REDIS_HASH_MAX_ZIPMAP_ENTRIES 64 -#define REDIS_HASH_MAX_ZIPMAP_VALUE 512 +#define REDIS_HASH_MAX_ZIPMAP_ENTRIES 512 +#define REDIS_HASH_MAX_ZIPMAP_VALUE 64 #define REDIS_LIST_MAX_ZIPLIST_ENTRIES 512 #define REDIS_LIST_MAX_ZIPLIST_VALUE 64 #define REDIS_SET_MAX_INTSET_ENTRIES 512 @@ -204,6 +209,12 @@ #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) @@ -351,17 +362,20 @@ struct sharedObjectsStruct { /* Global server state structure */ struct redisServer { + /* General */ pthread_t mainthread; + redisDb *db; + dict *commands; /* Command table hahs table */ + aeEventLoop *el; + /* Networking */ int port; 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 */ + list *slaves, *monitors; + char neterr[ANET_ERR_LEN]; /* RDB / AOF loading information */ int loading; off_t loading_total_bytes; @@ -369,9 +383,6 @@ struct redisServer { 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 */ time_t lastsave; /* Unix time of last save succeeede */ /* Fields used only for stats */ @@ -384,7 +395,6 @@ struct redisServer { long long stat_keyspace_misses; /* number of failed lookups of keys */ /* Configuration */ int verbosity; - int glueoutputbuf; int maxidletime; int dbnum; int daemonize; @@ -392,25 +402,32 @@ struct redisServer { int appendfsync; int no_appendfsync_on_rewrite; int shutdown_asap; + int activerehashing; + char *requirepass; + /* Persistence */ + long long dirty; /* changes to DB from the last save */ + long long dirty_before_bgsave; /* used to restore dirty on failed BGSAVE */ time_t lastfsync; int appendfd; int appendseldb; 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 saveparamslen; + char *dbfilename; + int rdbcompression; + char *appendfilename; + /* Logging */ char *logfile; int syslog_enabled; char *syslog_ident; int syslog_facility; - char *dbfilename; - char *appendfilename; - char *requirepass; - int rdbcompression; - int activerehashing; /* Replication related */ int isslave; /* Slave specific fields */ @@ -504,6 +521,7 @@ struct redisCommand { int vm_firstkey; /* The first argument that's a key (0 = no keys) */ int vm_lastkey; /* THe last argument that's a key */ int vm_keystep; /* The step between first and last key */ + long long microseconds, calls; }; struct redisFunctionSym { @@ -623,13 +641,15 @@ dictType hashDictType; * Functions prototypes *----------------------------------------------------------------------------*/ +/* Utils */ +long long ustime(void); + /* networking.c -- Networking and Client related operations */ redisClient *createClient(int fd); void closeTimedoutClients(void); void freeClient(redisClient *c); void resetClient(redisClient *c); void sendReplyToClient(aeEventLoop *el, int fd, void *privdata, int mask); -void sendReplyToClientWritev(aeEventLoop *el, int fd, void *privdata, int mask); void addReply(redisClient *c, robj *obj); void *addDeferredMultiBulkLength(redisClient *c); void setDeferredMultiBulkLength(redisClient *c, void *node, long length); @@ -651,6 +671,8 @@ void addReplyDouble(redisClient *c, double d); void addReplyLongLong(redisClient *c, long long ll); void addReplyMultiBulkLen(redisClient *c, long length); void *dupClientReplyValue(void *o); +void getClientsMaxBuffers(unsigned long *longest_output_list, + unsigned long *biggest_input_buffer); #ifdef __GNUC__ void addReplyErrorFormat(redisClient *c, const char *fmt, ...) @@ -748,11 +770,13 @@ int rdbSaveObject(FILE *fp, robj *o); off_t rdbSavedObjectLen(robj *o); off_t rdbSavedObjectPages(robj *o); robj *rdbLoadObject(int type, FILE *fp); -void backgroundSaveDoneHandler(int statloc); -int rdbSaveKeyValuePair(FILE *fp, redisDb *db, robj *key, robj *val, time_t now); +void backgroundSaveDoneHandler(int exitcode, int bysignal); +int rdbSaveKeyValuePair(FILE *fp, robj *key, robj *val, time_t expireitme, time_t now); int rdbLoadType(FILE *fp); time_t rdbLoadTime(FILE *fp); robj *rdbLoadStringObject(FILE *fp); +int rdbSaveType(FILE *fp, unsigned char type); +int rdbSaveLen(FILE *fp, uint32_t len); /* AOF persistence */ void flushAppendOnlyFile(void); @@ -762,7 +786,7 @@ int rewriteAppendOnlyFileBackground(void); int loadAppendOnlyFile(char *filename); void stopAppendOnly(void); int startAppendOnly(void); -void backgroundRewriteDoneHandler(int statloc); +void backgroundRewriteDoneHandler(int exitcode, int bysignal); /* Sorted sets data type */ zskiplist *zslCreate(void); @@ -772,7 +796,7 @@ zskiplistNode *zslInsert(zskiplist *zsl, double score, robj *obj); /* Core functions */ void freeMemoryIfNeeded(void); int processCommand(redisClient *c); -void setupSigSegvAction(void); +void setupSignalHandlers(void); struct redisCommand *lookupCommand(sds name); struct redisCommand *lookupCommandByCString(char *s); void call(redisClient *c, struct redisCommand *cmd); @@ -783,15 +807,18 @@ void updateDictResizePolicy(void); int htNeedsResize(dict *dict); void oom(const char *msg); void populateCommandTable(void); +void resetCommandTableStats(void); /* Disk store */ int dsOpen(void); int dsClose(void); -int dsSet(redisDb *db, robj *key, robj *val); +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); @@ -816,6 +843,7 @@ 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);