X-Git-Url: https://git.saurik.com/redis.git/blobdiff_plain/eeb34eff52eb77ff387ea7b316b157aa4337bb7f..717145c1a3302f4a20746dce8c885ee590e0f0e2:/src/redis.h?ds=sidebyside diff --git a/src/redis.h b/src/redis.h index 09a746cc..2084dfd2 100644 --- a/src/redis.h +++ b/src/redis.h @@ -28,7 +28,6 @@ #include "adlist.h" /* Linked lists */ #include "zmalloc.h" /* total memory usage aware version of malloc/free */ #include "anet.h" /* Networking the easy way */ -#include "zipmap.h" /* Compact string -> string data structure */ #include "ziplist.h" /* Compact list data structure */ #include "intset.h" /* Compact integer set structure */ #include "version.h" /* Version macro */ @@ -45,6 +44,7 @@ #define REDIS_CONFIGLINE_MAX 1024 #define REDIS_EXPIRELOOKUPS_PER_CRON 10 /* lookup 10 expires per loop */ #define REDIS_MAX_WRITE_PER_EVENT (1024*64) +#define REDIS_SHARED_SELECT_CMDS 10 #define REDIS_SHARED_INTEGERS 10000 #define REDIS_SHARED_BULKHDR_LEN 32 #define REDIS_MAX_LOGMSG_LEN 1024 /* Default maximum length of syslog messages */ @@ -52,12 +52,15 @@ #define REDIS_AOF_REWRITE_MIN_SIZE (1024*1024) #define REDIS_AOF_REWRITE_ITEMS_PER_CMD 64 #define REDIS_SLOWLOG_LOG_SLOWER_THAN 10000 -#define REDIS_SLOWLOG_MAX_LEN 64 +#define REDIS_SLOWLOG_MAX_LEN 128 #define REDIS_MAX_CLIENTS 10000 #define REDIS_REPL_TIMEOUT 60 #define REDIS_REPL_PING_SLAVE_PERIOD 10 +#define REDIS_RUN_ID_SIZE 40 +#define REDIS_OPS_SEC_SAMPLES 16 + /* Protocol and I/O related defines */ #define REDIS_MAX_QUERYBUF_LEN (1024*1024*1024) /* 1GB max query buffer. */ #define REDIS_IOBUF_LEN (1024*16) /* Generic I/O buffer size */ @@ -86,7 +89,6 @@ #define REDIS_SET 2 #define REDIS_ZSET 3 #define REDIS_HASH 4 -#define REDIS_VMPOINTER 8 /* Objects encoding. Some kind of objects like Strings and Hashes can be * internally represented in multiple ways. The 'encoding' field of the object @@ -205,8 +207,8 @@ #define AOF_FSYNC_EVERYSEC 2 /* Zip structure related defaults */ -#define REDIS_HASH_MAX_ZIPMAP_ENTRIES 512 -#define REDIS_HASH_MAX_ZIPMAP_VALUE 64 +#define REDIS_HASH_MAX_ZIPLIST_ENTRIES 512 +#define REDIS_HASH_MAX_ZIPLIST_VALUE 64 #define REDIS_LIST_MAX_ZIPLIST_ENTRIES 512 #define REDIS_LIST_MAX_ZIPLIST_VALUE 64 #define REDIS_SET_MAX_INTSET_ENTRIES 512 @@ -321,6 +323,7 @@ typedef struct redisClient { redisDb *db; int dictid; sds querybuf; + size_t querybuf_peak; /* Recent (100ms or more) peak of querybuf size */ int argc; robj **argv; struct redisCommand *cmd, *lastcmd; @@ -330,6 +333,7 @@ typedef struct redisClient { list *reply; unsigned long reply_bytes; /* Tot bytes of objects in reply list */ int sentlen; + time_t ctime; /* Client creation time */ time_t lastinteraction; /* time of the last interaction, used for timeout */ time_t obuf_soft_limit_reached_time; int flags; /* REDIS_SLAVE | REDIS_MONITOR | REDIS_MULTI ... */ @@ -361,11 +365,10 @@ struct sharedObjectsStruct { robj *crlf, *ok, *err, *emptybulk, *czero, *cone, *cnegone, *pong, *space, *colon, *nullbulk, *nullmultibulk, *queued, *emptymultibulk, *wrongtypeerr, *nokeyerr, *syntaxerr, *sameobjecterr, - *outofrangeerr, *noscripterr, *loadingerr, *slowscripterr, *plus, - *select0, *select1, *select2, *select3, *select4, - *select5, *select6, *select7, *select8, *select9, - *messagebulk, *pmessagebulk, *subscribebulk, *unsubscribebulk, - *psubscribebulk, *punsubscribebulk, *del, + *outofrangeerr, *noscripterr, *loadingerr, *slowscripterr, *bgsaveerr, + *roslaveerr, *oomerr, *plus, *messagebulk, *pmessagebulk, *subscribebulk, + *unsubscribebulk, *psubscribebulk, *punsubscribebulk, *del, *rpop, *lpop, + *select[REDIS_SHARED_SELECT_CMDS], *integers[REDIS_SHARED_INTEGERS], *mbulkhdr[REDIS_SHARED_BULKHDR_LEN], /* "*\r\n" */ *bulkhdr[REDIS_SHARED_BULKHDR_LEN]; /* "$\r\n" */ @@ -399,144 +402,29 @@ typedef struct clientBufferLimitsConfig { time_t soft_limit_seconds; } clientBufferLimitsConfig; -/* Currently only used to additionally propagate more commands to AOF/Replication - * after the propagation of the executed command. - * The structure contains everything needed to propagate a command: - * argv and argc, the ID of the database, pointer to the command table entry, - * and finally the target, that is an xor between REDIS_PROPAGATE_* flags. */ -typedef struct propagatedItem { +/* The redisOp structure defines a Redis Operation, that is an instance of + * a command with an argument vector, database ID, propagation target + * (REDIS_PROPAGATE_*), and command pointer. + * + * Currently only used to additionally propagate more commands to AOF/Replication + * after the propagation of the executed command. */ +typedef struct redisOp { robj **argv; int argc, dbid, target; struct redisCommand *cmd; -} propagatedItem; - -/*----------------------------------------------------------------------------- - * Redis cluster data structures - *----------------------------------------------------------------------------*/ - -#define REDIS_CLUSTER_SLOTS 4096 -#define REDIS_CLUSTER_OK 0 /* Everything looks ok */ -#define REDIS_CLUSTER_FAIL 1 /* The cluster can't work */ -#define REDIS_CLUSTER_NEEDHELP 2 /* The cluster works, but needs some help */ -#define REDIS_CLUSTER_NAMELEN 40 /* sha1 hex length */ -#define REDIS_CLUSTER_PORT_INCR 10000 /* Cluster port = baseport + PORT_INCR */ - -struct clusterNode; - -/* clusterLink encapsulates everything needed to talk with a remote node. */ -typedef struct clusterLink { - int fd; /* TCP socket file descriptor */ - sds sndbuf; /* Packet send buffer */ - sds rcvbuf; /* Packet reception buffer */ - struct clusterNode *node; /* Node related to this link if any, or NULL */ -} clusterLink; - -/* Node flags */ -#define REDIS_NODE_MASTER 1 /* The node is a master */ -#define REDIS_NODE_SLAVE 2 /* The node is a slave */ -#define REDIS_NODE_PFAIL 4 /* Failure? Need acknowledge */ -#define REDIS_NODE_FAIL 8 /* The node is believed to be malfunctioning */ -#define REDIS_NODE_MYSELF 16 /* This node is myself */ -#define REDIS_NODE_HANDSHAKE 32 /* We have still to exchange the first ping */ -#define REDIS_NODE_NOADDR 64 /* We don't know the address of this node */ -#define REDIS_NODE_MEET 128 /* Send a MEET message to this node */ -#define REDIS_NODE_NULL_NAME "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000" - -struct clusterNode { - char name[REDIS_CLUSTER_NAMELEN]; /* Node name, hex string, sha1-size */ - int flags; /* REDIS_NODE_... */ - unsigned char slots[REDIS_CLUSTER_SLOTS/8]; /* slots handled by this node */ - int numslaves; /* Number of slave nodes, if this is a master */ - struct clusterNode **slaves; /* pointers to slave nodes */ - struct clusterNode *slaveof; /* pointer to the master node */ - time_t ping_sent; /* Unix time we sent latest ping */ - time_t pong_received; /* Unix time we received the pong */ - char *configdigest; /* Configuration digest of this node */ - time_t configdigest_ts; /* Configuration digest timestamp */ - char ip[16]; /* Latest known IP address of this node */ - int port; /* Latest known port of this node */ - clusterLink *link; /* TCP/IP link with this node */ -}; -typedef struct clusterNode clusterNode; - -typedef struct { - char *configfile; - clusterNode *myself; /* This node */ - int state; /* REDIS_CLUSTER_OK, REDIS_CLUSTER_FAIL, ... */ - int node_timeout; - dict *nodes; /* Hash table of name -> clusterNode structures */ - clusterNode *migrating_slots_to[REDIS_CLUSTER_SLOTS]; - clusterNode *importing_slots_from[REDIS_CLUSTER_SLOTS]; - clusterNode *slots[REDIS_CLUSTER_SLOTS]; - zskiplist *slots_to_keys; -} clusterState; - -/* Redis cluster messages header */ - -/* Note that the PING, PONG and MEET messages are actually the same exact - * kind of packet. PONG is the reply to ping, in the extact format as a PING, - * while MEET is a special PING that forces the receiver to add the sender - * as a node (if it is not already in the list). */ -#define CLUSTERMSG_TYPE_PING 0 /* Ping */ -#define CLUSTERMSG_TYPE_PONG 1 /* Pong (reply to Ping) */ -#define CLUSTERMSG_TYPE_MEET 2 /* Meet "let's join" message */ -#define CLUSTERMSG_TYPE_FAIL 3 /* Mark node xxx as failing */ -#define CLUSTERMSG_TYPE_PUBLISH 4 /* Pub/Sub Publish propatagion */ - -/* Initially we don't know our "name", but we'll find it once we connect - * to the first node, using the getsockname() function. Then we'll use this - * address for all the next messages. */ -typedef struct { - char nodename[REDIS_CLUSTER_NAMELEN]; - uint32_t ping_sent; - uint32_t pong_received; - char ip[16]; /* IP address last time it was seen */ - uint16_t port; /* port last time it was seen */ - uint16_t flags; - uint32_t notused; /* for 64 bit alignment */ -} clusterMsgDataGossip; - -typedef struct { - char nodename[REDIS_CLUSTER_NAMELEN]; -} clusterMsgDataFail; +} redisOp; -typedef struct { - uint32_t channel_len; - uint32_t message_len; - unsigned char bulk_data[8]; /* defined as 8 just for alignment concerns. */ -} clusterMsgDataPublish; - -union clusterMsgData { - /* PING, MEET and PONG */ - struct { - /* Array of N clusterMsgDataGossip structures */ - clusterMsgDataGossip gossip[1]; - } ping; - - /* FAIL */ - struct { - clusterMsgDataFail about; - } fail; - - /* PUBLISH */ - struct { - clusterMsgDataPublish msg; - } publish; -}; - -typedef struct { - uint32_t totlen; /* Total length of this message */ - uint16_t type; /* Message type */ - uint16_t count; /* Only used for some kind of messages. */ - char sender[REDIS_CLUSTER_NAMELEN]; /* Name of the sender node */ - unsigned char myslots[REDIS_CLUSTER_SLOTS/8]; - char slaveof[REDIS_CLUSTER_NAMELEN]; - char configdigest[32]; - uint16_t port; /* Sender TCP base port */ - unsigned char state; /* Cluster state from the POV of the sender */ - unsigned char notused[5]; /* Reserved for future use. For alignment. */ - union clusterMsgData data; -} clusterMsg; +/* Defines an array of Redis operations. There is an API to add to this + * structure in a easy way. + * + * redisOpArrayInit(); + * redisOpArrayAppend(); + * redisOpArrayFree(); + */ +typedef struct redisOpArray { + redisOp *ops; + int numops; +} redisOpArray; /*----------------------------------------------------------------------------- * Global server state @@ -554,6 +442,8 @@ struct redisServer { char *requirepass; /* Pass for AUTH command, or NULL */ char *pidfile; /* PID file path */ int arch_bits; /* 32 or 64 depending on sizeof(long) */ + int cronloops; /* Number of times the cron function run */ + char runid[REDIS_RUN_ID_SIZE+1]; /* ID always different at every exec. */ /* Networking */ int port; /* TCP listening port */ char *bindaddr; /* Bind address or NULL */ @@ -561,7 +451,6 @@ struct redisServer { mode_t unixsocketperm; /* UNIX socket permission */ int ipfd; /* TCP socket file descriptor */ int sofd; /* Unix socket file descriptor */ - int cfd; /* Cluster bus lisetning socket */ list *clients; /* List of active clients */ list *clients_to_close; /* Clients to close asynchronously */ list *slaves, *monitors; /* List of slaves and MONITORs */ @@ -574,8 +463,6 @@ struct redisServer { time_t loading_start_time; /* Fast pointers to often looked up command */ struct redisCommand *delCommand, *multiCommand, *lpushCommand; - int cronloops; /* Number of times the cron function run */ - 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 */ @@ -591,6 +478,12 @@ struct redisServer { long long slowlog_entry_id; /* SLOWLOG current entry ID */ long long slowlog_log_slower_than; /* SLOWLOG time limit (to get logged) */ unsigned long slowlog_max_len; /* SLOWLOG max number of items logged */ + /* The following two are used to track instantaneous "load" in terms + * of operations per second. */ + long long ops_sec_last_sample_time; /* Timestamp of last sample (in ms) */ + long long ops_sec_last_sample_ops; /* numcommands in last sample */ + long long ops_sec_samples[REDIS_OPS_SEC_SAMPLES]; + int ops_sec_idx; /* Configuration */ int verbosity; /* Loglevel in redis.conf */ int maxidletime; /* Client timeout in seconds */ @@ -615,6 +508,7 @@ struct redisServer { int aof_selected_db; /* Currently selected DB in AOF */ time_t aof_flush_postponed_start; /* UNIX time of postponed AOF flush */ time_t aof_last_fsync; /* UNIX time of last fsync() */ + unsigned long aof_delayed_fsync; /* delayed AOF fsync() counter */ /* RDB persistence */ long long dirty; /* Changes to DB from the last save */ long long dirty_before_bgsave; /* Used to restore dirty on failed BGSAVE */ @@ -623,8 +517,12 @@ struct redisServer { int saveparamslen; /* Number of saving points */ char *rdb_filename; /* Name of RDB file */ int rdb_compression; /* Use compression in RDB? */ + int rdb_checksum; /* Use RDB checksum? */ + time_t lastsave; /* Unix time of last save succeeede */ + int lastbgsave_status; /* REDIS_OK or REDIS_ERR */ + int stop_writes_on_bgsave_err; /* Don't allow writes if can't BGSAVE */ /* Propagation of commands in AOF / replication */ - propagatedItem also_propagate; /* Additional command to propagate. */ + redisOpArray also_propagate; /* Additional command to propagate. */ /* Logging */ char *logfile; /* Path of log file */ int syslog_enabled; /* Is syslog enabled? */ @@ -645,6 +543,7 @@ struct redisServer { 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? */ + int repl_slave_ro; /* Slave is read only? */ time_t repl_down_since; /* Unix time at which link with master went down */ /* Limits */ unsigned int maxclients; /* Max number of simultaneous clients */ @@ -661,8 +560,8 @@ struct redisServer { int sort_alpha; int sort_bypattern; /* Zip structure config, see redis.conf for more information */ - size_t hash_max_zipmap_entries; - size_t hash_max_zipmap_value; + size_t hash_max_ziplist_entries; + size_t hash_max_ziplist_value; size_t list_max_ziplist_entries; size_t list_max_ziplist_value; size_t set_max_intset_entries; @@ -672,9 +571,6 @@ struct redisServer { /* Pubsub */ dict *pubsub_channels; /* Map channels to list of subscribed clients */ list *pubsub_patterns; /* A list of pubsub_patterns */ - /* Cluster */ - int cluster_enabled; /* Is cluster enabled? */ - clusterState cluster; /* State of the cluster */ /* Scripting */ lua_State *lua; /* The Lua interpreter. We use just one for all clients */ redisClient *lua_client; /* The "fake client" to query Redis from Lua */ @@ -694,6 +590,7 @@ struct redisServer { char *assert_file; int assert_line; int bug_report_start; /* True if bug report header was already logged. */ + int watchdog_period; /* Software watchdog period in ms. 0 = off */ }; typedef struct pubsubPattern { @@ -709,8 +606,7 @@ struct redisCommand { int arity; char *sflags; /* Flags as string represenation, one char per flag. */ int flags; /* The actual flags, obtained from the 'sflags' field. */ - /* Use a function to determine keys arguments in a command line. - * Used for Redis Cluster redirect. */ + /* Use a function to determine keys arguments in a command line. */ 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) */ @@ -766,10 +662,10 @@ typedef struct { * not both are required, store pointers in the iterator to avoid * unnecessary memory allocation for fields/values. */ typedef struct { + robj *subject; int encoding; - unsigned char *zi; - unsigned char *zk, *zv; - unsigned int zklen, zvlen; + + unsigned char *fptr, *vptr; dictIterator *di; dictEntry *de; @@ -786,10 +682,9 @@ extern struct redisServer server; extern struct sharedObjectsStruct shared; extern dictType setDictType; extern dictType zsetDictType; -extern dictType clusterNodesDictType; extern dictType dbDictType; extern double R_Zero, R_PosInf, R_NegInf, R_Nan; -dictType hashDictType; +extern dictType hashDictType; /*----------------------------------------------------------------------------- * Functions prototypes @@ -798,6 +693,9 @@ dictType hashDictType; /* Utils */ long long ustime(void); long long mstime(void); +void getRandomHexChars(char *p, unsigned int len); +uint64_t crc64(uint64_t crc, const unsigned char *s, uint64_t l); +void exitFromChild(int retcode); /* networking.c -- Networking and Client related operations */ redisClient *createClient(int fd); @@ -839,6 +737,7 @@ void asyncCloseClientOnOutputBufferLimitReached(redisClient *c); int getClientLimitClassByName(char *name); char *getClientLimitClassName(int class); void flushSlavesOutputBuffers(void); +void disconnectSlaves(void); #ifdef __GNUC__ void addReplyErrorFormat(redisClient *c, const char *fmt, ...) @@ -874,6 +773,7 @@ void freeClientMultiState(redisClient *c); void queueMultiCommand(redisClient *c); void touchWatchedKey(redisDb *db, robj *key); void touchWatchedKeysOnFlush(int dbid); +void discardTransaction(redisClient *c); /* Redis object implementation */ void decrRefCount(void *o); @@ -913,13 +813,13 @@ 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); +ssize_t syncWrite(int fd, char *ptr, ssize_t size, long long timeout); +ssize_t syncRead(int fd, char *ptr, ssize_t size, long long timeout); +ssize_t syncReadLine(int fd, char *ptr, ssize_t size, long long timeout); /* Replication */ void replicationFeedSlaves(list *slaves, int dictid, robj **argv, int argc); -void replicationFeedMonitors(list *monitors, int dictid, robj **argv, int argc); +void replicationFeedMonitors(redisClient *c, list *monitors, int dictid, robj **argv, int argc); void updateSlavesWaitingBgsave(int bgsaveerr); void replicationCron(void); @@ -973,6 +873,7 @@ void alsoPropagate(struct redisCommand *cmd, int dbid, robj **argv, int argc, in int prepareForShutdown(); void redisLog(int level, const char *fmt, ...); void redisLogRaw(int level, const char *msg); +void redisLogFromHandler(int level, const char *msg); void usage(); void updateDictResizePolicy(void); int htNeedsResize(dict *dict); @@ -994,10 +895,9 @@ unsigned long setTypeSize(robj *subject); void setTypeConvert(robj *subject, int enc); /* Hash data type */ -void convertToRealHash(robj *o); +void hashTypeConvert(robj *o, int enc); void hashTypeTryConversion(robj *subject, robj **argv, int start, int end); void hashTypeTryObjectEncoding(robj *subject, robj **o1, robj **o2); -int hashTypeGet(robj *o, robj *key, robj **objval, unsigned char **v, unsigned int *vlen); robj *hashTypeGetObject(robj *o, robj *key); int hashTypeExists(robj *o, robj *key); int hashTypeSet(robj *o, robj *key, robj *value); @@ -1006,7 +906,11 @@ unsigned long hashTypeLength(robj *o); hashTypeIterator *hashTypeInitIterator(robj *subject); void hashTypeReleaseIterator(hashTypeIterator *hi); int hashTypeNext(hashTypeIterator *hi); -int hashTypeCurrent(hashTypeIterator *hi, int what, robj **objval, unsigned char **v, unsigned int *vlen); +void hashTypeCurrentFromZiplist(hashTypeIterator *hi, int what, + unsigned char **vstr, + unsigned int *vlen, + long long *vll); +void hashTypeCurrentFromHashTable(hashTypeIterator *hi, int what, robj **dst); robj *hashTypeCurrentObject(hashTypeIterator *hi, int what); robj *hashTypeLookupWriteOrCreate(redisClient *c, robj *key); @@ -1054,16 +958,6 @@ int *noPreloadGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numke int *renameGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags); int *zunionInterGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags); -/* Cluster */ -void clusterInit(void); -unsigned short crc16(const char *buf, int len); -unsigned int keyHashSlot(char *key, int keylen); -clusterNode *createClusterNode(char *nodename, int flags); -int clusterAddNode(clusterNode *node); -void clusterCron(void); -clusterNode *getNodeByQuery(redisClient *c, struct redisCommand *cmd, robj **argv, int argc, int *hashslot, int *ask); -void clusterPropagatePublish(robj *channel, robj *message); - /* Scripting */ void scriptingInit(void); @@ -1195,16 +1089,15 @@ void punsubscribeCommand(redisClient *c); void publishCommand(redisClient *c); void watchCommand(redisClient *c); void unwatchCommand(redisClient *c); -void clusterCommand(redisClient *c); void restoreCommand(redisClient *c); void migrateCommand(redisClient *c); -void askingCommand(redisClient *c); void dumpCommand(redisClient *c); void objectCommand(redisClient *c); void clientCommand(redisClient *c); void evalCommand(redisClient *c); void evalShaCommand(redisClient *c); void scriptCommand(redisClient *c); +void timeCommand(redisClient *c); #if defined(__GNUC__) void *calloc(size_t count, size_t size) __attribute__ ((deprecated)); @@ -1221,4 +1114,7 @@ void bugReportStart(void); void redisLogObjectDebugInfo(robj *o); void sigsegvHandler(int sig, siginfo_t *info, void *secret); sds genRedisInfoString(char *section); +void enableWatchdog(int period); +void disableWatchdog(void); +void watchdogScheduleSignal(int period); #endif