Redis啟動(dòng)流程分析

struct redisCommand redisCommandTable[] = {
 {"get",getCommand,2,"r",0,NULL,1,1,1,0,0},
 {"set",setCommand,-3,"wm",0,noPreloadGetKeys,1,1,1,0,0},
 {"setnx",setnxCommand,3,"wm",0,noPreloadGetKeys,1,1,1,0,0},
 {"setex",setexCommand,4,"wm",0,noPreloadGetKeys,1,1,1,0,0},
 {"psetex",psetexCommand,4,"wm",0,noPreloadGetKeys,1,1,1,0,0},
 {"append",appendCommand,3,"wm",0,NULL,1,1,1,0,0},
 {"strlen",strlenCommand,2,"r",0,NULL,1,1,1,0,0},
 {"del",delCommand,-2,"w",0,noPreloadGetKeys,1,-1,1,0,0},
 {"exists",existsCommand,2,"r",0,NULL,1,1,1,0,0},
 {"setbit",setbitCommand,4,"wm",0,NULL,1,1,1,0,0},
 {"getbit",getbitCommand,3,"r",0,NULL,1,1,1,0,0},
 {"setrange",setrangeCommand,4,"wm",0,NULL,1,1,1,0,0},
 {"getrange",getrangeCommand,4,"r",0,NULL,1,1,1,0,0},
 {"substr",getrangeCommand,4,"r",0,NULL,1,1,1,0,0},
 {"incr",incrCommand,2,"wm",0,NULL,1,1,1,0,0},
 {"decr",decrCommand,2,"wm",0,NULL,1,1,1,0,0},
 {"mget",mgetCommand,-2,"r",0,NULL,1,-1,1,0,0},
 {"rpush",rpushCommand,-3,"wm",0,NULL,1,1,1,0,0},
 {"lpush",lpushCommand,-3,"wm",0,NULL,1,1,1,0,0},
 {"rpushx",rpushxCommand,3,"wm",0,NULL,1,1,1,0,0},
 {"lpushx",lpushxCommand,3,"wm",0,NULL,1,1,1,0,0},
 {"linsert",linsertCommand,5,"wm",0,NULL,1,1,1,0,0},
 {"rpop",rpopCommand,2,"w",0,NULL,1,1,1,0,0},
 {"lpop",lpopCommand,2,"w",0,NULL,1,1,1,0,0},
 {"brpop",brpopCommand,-3,"ws",0,NULL,1,1,1,0,0},
 {"brpoplpush",brpoplpushCommand,4,"wms",0,NULL,1,2,1,0,0},
 {"blpop",blpopCommand,-3,"ws",0,NULL,1,-2,1,0,0},
 {"llen",llenCommand,2,"r",0,NULL,1,1,1,0,0},
 {"lindex",lindexCommand,3,"r",0,NULL,1,1,1,0,0},
 {"lset",lsetCommand,4,"wm",0,NULL,1,1,1,0,0},
 {"lrange",lrangeCommand,4,"r",0,NULL,1,1,1,0,0},
 {"ltrim",ltrimCommand,4,"w",0,NULL,1,1,1,0,0},
 {"lrem",lremCommand,4,"w",0,NULL,1,1,1,0,0},
 {"rpoplpush",rpoplpushCommand,3,"wm",0,NULL,1,2,1,0,0},
 {"sadd",saddCommand,-3,"wm",0,NULL,1,1,1,0,0},
 {"srem",sremCommand,-3,"w",0,NULL,1,1,1,0,0},
 {"smove",smoveCommand,4,"w",0,NULL,1,2,1,0,0},
 {"sismember",sismemberCommand,3,"r",0,NULL,1,1,1,0,0},
 {"scard",scardCommand,2,"r",0,NULL,1,1,1,0,0},
 {"spop",spopCommand,2,"wRs",0,NULL,1,1,1,0,0},
 {"srandmember",srandmemberCommand,-2,"rR",0,NULL,1,1,1,0,0},
 {"sinter",sinterCommand,-2,"rS",0,NULL,1,-1,1,0,0},
 {"sinterstore",sinterstoreCommand,-3,"wm",0,NULL,1,-1,1,0,0},
 {"sunion",sunionCommand,-2,"rS",0,NULL,1,-1,1,0,0},
 {"sunionstore",sunionstoreCommand,-3,"wm",0,NULL,1,-1,1,0,0},
 {"sdiff",sdiffCommand,-2,"rS",0,NULL,1,-1,1,0,0},
 {"sdiffstore",sdiffstoreCommand,-3,"wm",0,NULL,1,-1,1,0,0},
 {"smembers",sinterCommand,2,"rS",0,NULL,1,1,1,0,0},
 {"zadd",zaddCommand,-4,"wm",0,NULL,1,1,1,0,0},
 {"zincrby",zincrbyCommand,4,"wm",0,NULL,1,1,1,0,0},
 {"zrem",zremCommand,-3,"w",0,NULL,1,1,1,0,0},
 {"zremrangebyscore",zremrangebyscoreCommand,4,"w",0,NULL,1,1,1,0,0},
 {"zremrangebyrank",zremrangebyrankCommand,4,"w",0,NULL,1,1,1,0,0},
 {"zunionstore",zunionstoreCommand,-4,"wm",0,zunionInterGetKeys,0,0,0,0,0},
 {"zinterstore",zinterstoreCommand,-4,"wm",0,zunionInterGetKeys,0,0,0,0,0},
 {"zrange",zrangeCommand,-4,"r",0,NULL,1,1,1,0,0},
 {"zrangebyscore",zrangebyscoreCommand,-4,"r",0,NULL,1,1,1,0,0},
 {"zrevrangebyscore",zrevrangebyscoreCommand,-4,"r",0,NULL,1,1,1,0,0},
 {"zcount",zcountCommand,4,"r",0,NULL,1,1,1,0,0},
 {"zrevrange",zrevrangeCommand,-4,"r",0,NULL,1,1,1,0,0},
 {"zcard",zcardCommand,2,"r",0,NULL,1,1,1,0,0},
 {"zscore",zscoreCommand,3,"r",0,NULL,1,1,1,0,0},
 {"zrank",zrankCommand,3,"r",0,NULL,1,1,1,0,0},
 {"zrevrank",zrevrankCommand,3,"r",0,NULL,1,1,1,0,0},
 {"hset",hsetCommand,4,"wm",0,NULL,1,1,1,0,0},
 {"hsetnx",hsetnxCommand,4,"wm",0,NULL,1,1,1,0,0},
 {"hget",hgetCommand,3,"r",0,NULL,1,1,1,0,0},
 {"hmset",hmsetCommand,-4,"wm",0,NULL,1,1,1,0,0},
 {"hmget",hmgetCommand,-3,"r",0,NULL,1,1,1,0,0},
 {"hincrby",hincrbyCommand,4,"wm",0,NULL,1,1,1,0,0},
 {"hincrbyfloat",hincrbyfloatCommand,4,"wm",0,NULL,1,1,1,0,0},
 {"hdel",hdelCommand,-3,"w",0,NULL,1,1,1,0,0},
 {"hlen",hlenCommand,2,"r",0,NULL,1,1,1,0,0},
 {"hkeys",hkeysCommand,2,"rS",0,NULL,1,1,1,0,0},
 {"hvals",hvalsCommand,2,"rS",0,NULL,1,1,1,0,0},
 {"hgetall",hgetallCommand,2,"r",0,NULL,1,1,1,0,0},
 {"hexists",hexistsCommand,3,"r",0,NULL,1,1,1,0,0},
 {"incrby",incrbyCommand,3,"wm",0,NULL,1,1,1,0,0},
 {"decrby",decrbyCommand,3,"wm",0,NULL,1,1,1,0,0},
 {"incrbyfloat",incrbyfloatCommand,3,"wm",0,NULL,1,1,1,0,0},
 {"getset",getsetCommand,3,"wm",0,NULL,1,1,1,0,0},
 {"mset",msetCommand,-3,"wm",0,NULL,1,-1,2,0,0},
 {"msetnx",msetnxCommand,-3,"wm",0,NULL,1,-1,2,0,0},
 {"randomkey",randomkeyCommand,1,"rR",0,NULL,0,0,0,0,0},
 {"select",selectCommand,2,"rl",0,NULL,0,0,0,0,0},
 {"move",moveCommand,3,"w",0,NULL,1,1,1,0,0},
 {"rename",renameCommand,3,"w",0,renameGetKeys,1,2,1,0,0},
 {"renamenx",renamenxCommand,3,"w",0,renameGetKeys,1,2,1,0,0},
 {"expire",expireCommand,3,"w",0,NULL,1,1,1,0,0},
 {"expireat",expireatCommand,3,"w",0,NULL,1,1,1,0,0},
 {"pexpire",pexpireCommand,3,"w",0,NULL,1,1,1,0,0},
 {"pexpireat",pexpireatCommand,3,"w",0,NULL,1,1,1,0,0},
 {"keys",keysCommand,2,"rS",0,NULL,0,0,0,0,0},
 {"dbsize",dbsizeCommand,1,"r",0,NULL,0,0,0,0,0},
 {"auth",authCommand,2,"rsl",0,NULL,0,0,0,0,0},
 {"ping",pingCommand,1,"r",0,NULL,0,0,0,0,0},
 {"echo",echoCommand,2,"r",0,NULL,0,0,0,0,0},
 {"save",saveCommand,1,"ars",0,NULL,0,0,0,0,0},
 {"bgsave",bgsaveCommand,1,"ar",0,NULL,0,0,0,0,0},
 {"bgrewriteaof",bgrewriteaofCommand,1,"ar",0,NULL,0,0,0,0,0},
 {"shutdown",shutdownCommand,-1,"ar",0,NULL,0,0,0,0,0},
 {"lastsave",lastsaveCommand,1,"rR",0,NULL,0,0,0,0,0},
 {"type",typeCommand,2,"r",0,NULL,1,1,1,0,0},
 {"multi",multiCommand,1,"rs",0,NULL,0,0,0,0,0},
 {"exec",execCommand,1,"sM",0,NULL,0,0,0,0,0},
 {"discard",discardCommand,1,"rs",0,NULL,0,0,0,0,0},
 {"sync",syncCommand,1,"ars",0,NULL,0,0,0,0,0},
 {"replconf",replconfCommand,-1,"ars",0,NULL,0,0,0,0,0},
 {"flushdb",flushdbCommand,1,"w",0,NULL,0,0,0,0,0},
 {"flushall",flushallCommand,1,"w",0,NULL,0,0,0,0,0},
 {"sort",sortCommand,-2,"wm",0,NULL,1,1,1,0,0},
 {"info",infoCommand,-1,"rlt",0,NULL,0,0,0,0,0},
 {"monitor",monitorCommand,1,"ars",0,NULL,0,0,0,0,0},
 {"ttl",ttlCommand,2,"r",0,NULL,1,1,1,0,0},
 {"pttl",pttlCommand,2,"r",0,NULL,1,1,1,0,0},
 {"persist",persistCommand,2,"w",0,NULL,1,1,1,0,0},
 {"slaveof",slaveofCommand,3,"ast",0,NULL,0,0,0,0,0},
 {"debug",debugCommand,-2,"as",0,NULL,0,0,0,0,0},
 {"config",configCommand,-2,"ar",0,NULL,0,0,0,0,0},
 {"subscribe",subscribeCommand,-2,"rpslt",0,NULL,0,0,0,0,0},
 {"unsubscribe",unsubscribeCommand,-1,"rpslt",0,NULL,0,0,0,0,0},
 {"psubscribe",psubscribeCommand,-2,"rpslt",0,NULL,0,0,0,0,0},
 {"punsubscribe",punsubscribeCommand,-1,"rpslt",0,NULL,0,0,0,0,0},
 {"publish",publishCommand,3,"pfltr",0,NULL,0,0,0,0,0},
 {"watch",watchCommand,-2,"rs",0,noPreloadGetKeys,1,-1,1,0,0},
 {"unwatch",unwatchCommand,1,"rs",0,NULL,0,0,0,0,0},
 {"restore",restoreCommand,4,"awm",0,NULL,1,1,1,0,0},
 {"migrate",migrateCommand,6,"aw",0,NULL,0,0,0,0,0},
 {"dump",dumpCommand,2,"ar",0,NULL,1,1,1,0,0},
 {"object",objectCommand,-2,"r",0,NULL,2,2,2,0,0},
 {"client",clientCommand,-2,"ar",0,NULL,0,0,0,0,0},
 {"eval",evalCommand,-3,"s",0,zunionInterGetKeys,0,0,0,0,0},
 {"evalsha",evalShaCommand,-3,"s",0,zunionInterGetKeys,0,0,0,0,0},
 {"slowlog",slowlogCommand,-2,"r",0,NULL,0,0,0,0,0},
 {"script",scriptCommand,-2,"ras",0,NULL,0,0,0,0,0},
 {"time",timeCommand,1,"rR",0,NULL,0,0,0,0,0},
 {"bitop",bitopCommand,-4,"wm",0,NULL,2,-1,1,0,0},
 {"bitcount",bitcountCommand,-2,"r",0,NULL,1,1,1,0,0}
};