X-Git-Url: https://git.saurik.com/redis.git/blobdiff_plain/192fc3376a0712e69e638b087c82c7e34f698f4d..3ce014c766c47f3966d438032a6fa318c4f6ec61:/src/redis.h diff --git a/src/redis.h b/src/redis.h index 3de054f2..cf21447d 100644 --- a/src/redis.h +++ b/src/redis.h @@ -57,15 +57,15 @@ /* 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 @@ -144,6 +144,11 @@ #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 */ @@ -198,6 +203,13 @@ #define REDIS_OP_DIFF 1 #define REDIS_OP_INTER 2 +/* Redis maxmemory strategies */ +#define REDIS_MAXMEMORY_VOLATILE_LRU 0 +#define REDIS_MAXMEMORY_VOLATILE_TTL 1 +#define REDIS_MAXMEMORY_VOLATILE_RANDOM 2 +#define REDIS_MAXMEMORY_ALLKEYS_LRU 3 +#define REDIS_MAXMEMORY_ALLKEYS_RANDOM 4 + /* 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) @@ -211,6 +223,8 @@ void _redisPanic(char *msg, char *file, int line); /* A redis object, that is a type able to hold a string / list / set */ /* The actual Redis Object */ +#define REDIS_LRU_CLOCK_MAX ((1<<21)-1) /* Max value of obj->lru */ +#define REDIS_LRU_CLOCK_RESOLUTION 10 /* LRU clock resolution in seconds */ typedef struct redisObject { unsigned type:4; unsigned storage:2; /* REDIS_VM_MEMORY or REDIS_VM_SWAPPING */ @@ -285,10 +299,11 @@ typedef struct redisClient { redisDb *db; int dictid; sds querybuf; - robj **argv, **mbargv; - 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 */ @@ -347,12 +362,14 @@ struct redisServer { 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 */ + time_t lastsave; /* Unix time of last save succeeede */ /* Fields used only for stats */ - time_t stat_starttime; /* server start time */ - long long stat_numcommands; /* number of processed commands */ - long long stat_numconnections; /* number of connections received */ - long long stat_expiredkeys; /* number of expired keys */ + time_t stat_starttime; /* server start time */ + long long stat_numcommands; /* number of processed commands */ + long long stat_numconnections; /* number of connections received */ + long long stat_expiredkeys; /* number of expired keys */ + long long stat_keyspace_hits; /* number of successful lookups of keys */ + long long stat_keyspace_misses; /* number of failed lookups of keys */ /* Configuration */ int verbosity; int glueoutputbuf; @@ -389,6 +406,8 @@ struct redisServer { int replstate; unsigned int maxclients; unsigned long long maxmemory; + int maxmemory_policy; + int maxmemory_samples; unsigned int blpop_blocked_clients; unsigned int vm_blocked_clients; /* Sort parameters - qsort_r() is only available under BSD so we @@ -677,6 +696,16 @@ int getLongLongFromObject(robj *o, long long *target); char *strEncoding(int encoding); int compareStringObjects(robj *a, robj *b); int equalStringObjects(robj *a, robj *b); +unsigned long estimateObjectIdleTime(robj *o); + +/* Synchronous I/O with timeout */ +int syncWrite(int fd, char *ptr, ssize_t size, int timeout); +int syncRead(int fd, char *ptr, ssize_t size, int timeout); +int syncReadLine(int fd, char *ptr, ssize_t size, int timeout); +int fwriteBulkString(FILE *fp, char *s, unsigned long len); +int fwriteBulkDouble(FILE *fp, double d); +int fwriteBulkLongLong(FILE *fp, long long l); +int fwriteBulkObject(FILE *fp, robj *obj); /* Replication */ void replicationFeedSlaves(list *slaves, int dictid, robj **argv, int argc); @@ -895,6 +924,7 @@ void zaddCommand(redisClient *c); void zincrbyCommand(redisClient *c); void zrangeCommand(redisClient *c); void zrangebyscoreCommand(redisClient *c); +void zrevrangebyscoreCommand(redisClient *c); void zcountCommand(redisClient *c); void zrevrangeCommand(redisClient *c); void zcardCommand(redisClient *c);