X-Git-Url: https://git.saurik.com/redis.git/blobdiff_plain/5cb4850708d7ad9c035e7ee9534b05bb1b0e9d94..1ef8b0a96d9b1a9f3a69914ece8e20b3c3d4c64c:/src/redis.c diff --git a/src/redis.c b/src/redis.c index 1d7501f9..94daf348 100644 --- a/src/redis.c +++ b/src/redis.c @@ -29,6 +29,7 @@ #include "redis.h" #include "slowlog.h" +#include "bio.h" #ifdef HAVE_BACKTRACE #include @@ -57,7 +58,7 @@ struct sharedObjectsStruct shared; -/* Global vars that are actally used as constants. The following double +/* Global vars that are actually used as constants. The following double * values are used for double on-disk serialization, and are initialized * at runtime to avoid strange compiler optimizations. */ @@ -68,135 +69,152 @@ double R_Zero, R_PosInf, R_NegInf, R_Nan; /* Global vars */ struct redisServer server; /* server global state */ struct redisCommand *commandTable; + +/* Our command table. Command flags are expressed using strings where every + * character represents a flag. Later the populateCommandTable() function will + * take care of populating the real 'flags' field using this characters. + * + * This is the meaning of the flags: + * + * w: write command (may modify the key space). + * r: read command (will never modify the key space). + * m: may increase memory usage once called. Don't allow if out of memory. + * a: admin command, like SAVE or SHUTDOWN. + * p: Pub/Sub related command. + * f: force replication of this command, regarless of server.dirty. + * s: command not allowed in scripts. + * r: random command. Command is not deterministic, that is, the same command + * with the same arguments, with the same key space, may have different + * results. For instance SPOP and RANDOMKEY are two random commands. */ struct redisCommand redisCommandTable[] = { - {"get",getCommand,2,0,NULL,1,1,1,0,0}, - {"set",setCommand,3,REDIS_CMD_DENYOOM,noPreloadGetKeys,1,1,1,0,0}, - {"setnx",setnxCommand,3,REDIS_CMD_DENYOOM,noPreloadGetKeys,1,1,1,0,0}, - {"setex",setexCommand,4,REDIS_CMD_DENYOOM,noPreloadGetKeys,2,2,1,0,0}, - {"append",appendCommand,3,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"strlen",strlenCommand,2,0,NULL,1,1,1,0,0}, - {"del",delCommand,-2,0,noPreloadGetKeys,1,-1,1,0,0}, - {"exists",existsCommand,2,0,NULL,1,1,1,0,0}, - {"setbit",setbitCommand,4,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"getbit",getbitCommand,3,0,NULL,1,1,1,0,0}, - {"setrange",setrangeCommand,4,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"getrange",getrangeCommand,4,0,NULL,1,1,1,0,0}, - {"substr",getrangeCommand,4,0,NULL,1,1,1,0,0}, - {"incr",incrCommand,2,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"decr",decrCommand,2,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"mget",mgetCommand,-2,0,NULL,1,-1,1,0,0}, - {"rpush",rpushCommand,-3,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"lpush",lpushCommand,-3,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"rpushx",rpushxCommand,3,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"lpushx",lpushxCommand,3,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"linsert",linsertCommand,5,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"rpop",rpopCommand,2,0,NULL,1,1,1,0,0}, - {"lpop",lpopCommand,2,0,NULL,1,1,1,0,0}, - {"brpop",brpopCommand,-3,0,NULL,1,1,1,0,0}, - {"brpoplpush",brpoplpushCommand,4,REDIS_CMD_DENYOOM,NULL,1,2,1,0,0}, - {"blpop",blpopCommand,-3,0,NULL,1,-2,1,0,0}, - {"llen",llenCommand,2,0,NULL,1,1,1,0,0}, - {"lindex",lindexCommand,3,0,NULL,1,1,1,0,0}, - {"lset",lsetCommand,4,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"lrange",lrangeCommand,4,0,NULL,1,1,1,0,0}, - {"ltrim",ltrimCommand,4,0,NULL,1,1,1,0,0}, - {"lrem",lremCommand,4,0,NULL,1,1,1,0,0}, - {"rpoplpush",rpoplpushCommand,3,REDIS_CMD_DENYOOM,NULL,1,2,1,0,0}, - {"sadd",saddCommand,-3,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"srem",sremCommand,-3,0,NULL,1,1,1,0,0}, - {"smove",smoveCommand,4,0,NULL,1,2,1,0,0}, - {"sismember",sismemberCommand,3,0,NULL,1,1,1,0,0}, - {"scard",scardCommand,2,0,NULL,1,1,1,0,0}, - {"spop",spopCommand,2,0,NULL,1,1,1,0,0}, - {"srandmember",srandmemberCommand,2,0,NULL,1,1,1,0,0}, - {"sinter",sinterCommand,-2,REDIS_CMD_DENYOOM,NULL,1,-1,1,0,0}, - {"sinterstore",sinterstoreCommand,-3,REDIS_CMD_DENYOOM,NULL,2,-1,1,0,0}, - {"sunion",sunionCommand,-2,REDIS_CMD_DENYOOM,NULL,1,-1,1,0,0}, - {"sunionstore",sunionstoreCommand,-3,REDIS_CMD_DENYOOM,NULL,2,-1,1,0,0}, - {"sdiff",sdiffCommand,-2,REDIS_CMD_DENYOOM,NULL,1,-1,1,0,0}, - {"sdiffstore",sdiffstoreCommand,-3,REDIS_CMD_DENYOOM,NULL,2,-1,1,0,0}, - {"smembers",sinterCommand,2,0,NULL,1,1,1,0,0}, - {"zadd",zaddCommand,-4,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"zincrby",zincrbyCommand,4,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"zrem",zremCommand,-3,0,NULL,1,1,1,0,0}, - {"zremrangebyscore",zremrangebyscoreCommand,4,0,NULL,1,1,1,0,0}, - {"zremrangebyrank",zremrangebyrankCommand,4,0,NULL,1,1,1,0,0}, - {"zunionstore",zunionstoreCommand,-4,REDIS_CMD_DENYOOM,zunionInterGetKeys,0,0,0,0,0}, - {"zinterstore",zinterstoreCommand,-4,REDIS_CMD_DENYOOM,zunionInterGetKeys,0,0,0,0,0}, - {"zrange",zrangeCommand,-4,0,NULL,1,1,1,0,0}, - {"zrangebyscore",zrangebyscoreCommand,-4,0,NULL,1,1,1,0,0}, - {"zrevrangebyscore",zrevrangebyscoreCommand,-4,0,NULL,1,1,1,0,0}, - {"zcount",zcountCommand,4,0,NULL,1,1,1,0,0}, - {"zrevrange",zrevrangeCommand,-4,0,NULL,1,1,1,0,0}, - {"zcard",zcardCommand,2,0,NULL,1,1,1,0,0}, - {"zscore",zscoreCommand,3,0,NULL,1,1,1,0,0}, - {"zrank",zrankCommand,3,0,NULL,1,1,1,0,0}, - {"zrevrank",zrevrankCommand,3,0,NULL,1,1,1,0,0}, - {"hset",hsetCommand,4,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"hsetnx",hsetnxCommand,4,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"hget",hgetCommand,3,0,NULL,1,1,1,0,0}, - {"hmset",hmsetCommand,-4,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"hmget",hmgetCommand,-3,0,NULL,1,1,1,0,0}, - {"hincrby",hincrbyCommand,4,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"hdel",hdelCommand,-3,0,NULL,1,1,1,0,0}, - {"hlen",hlenCommand,2,0,NULL,1,1,1,0,0}, - {"hkeys",hkeysCommand,2,0,NULL,1,1,1,0,0}, - {"hvals",hvalsCommand,2,0,NULL,1,1,1,0,0}, - {"hgetall",hgetallCommand,2,0,NULL,1,1,1,0,0}, - {"hexists",hexistsCommand,3,0,NULL,1,1,1,0,0}, - {"incrby",incrbyCommand,3,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"decrby",decrbyCommand,3,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"getset",getsetCommand,3,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"mset",msetCommand,-3,REDIS_CMD_DENYOOM,NULL,1,-1,2,0,0}, - {"msetnx",msetnxCommand,-3,REDIS_CMD_DENYOOM,NULL,1,-1,2,0,0}, - {"randomkey",randomkeyCommand,1,0,NULL,0,0,0,0,0}, - {"select",selectCommand,2,0,NULL,0,0,0,0,0}, - {"move",moveCommand,3,0,NULL,1,1,1,0,0}, - {"rename",renameCommand,3,0,renameGetKeys,1,2,1,0,0}, - {"renamenx",renamenxCommand,3,0,renameGetKeys,1,2,1,0,0}, - {"expire",expireCommand,3,0,NULL,1,1,1,0,0}, - {"expireat",expireatCommand,3,0,NULL,1,1,1,0,0}, - {"keys",keysCommand,2,0,NULL,0,0,0,0,0}, - {"dbsize",dbsizeCommand,1,0,NULL,0,0,0,0,0}, - {"auth",authCommand,2,0,NULL,0,0,0,0,0}, - {"ping",pingCommand,1,0,NULL,0,0,0,0,0}, - {"echo",echoCommand,2,0,NULL,0,0,0,0,0}, - {"save",saveCommand,1,0,NULL,0,0,0,0,0}, - {"bgsave",bgsaveCommand,1,0,NULL,0,0,0,0,0}, - {"bgrewriteaof",bgrewriteaofCommand,1,0,NULL,0,0,0,0,0}, - {"shutdown",shutdownCommand,1,0,NULL,0,0,0,0,0}, - {"lastsave",lastsaveCommand,1,0,NULL,0,0,0,0,0}, - {"type",typeCommand,2,0,NULL,1,1,1,0,0}, - {"multi",multiCommand,1,0,NULL,0,0,0,0,0}, - {"exec",execCommand,1,REDIS_CMD_DENYOOM,NULL,0,0,0,0,0}, - {"discard",discardCommand,1,0,NULL,0,0,0,0,0}, - {"sync",syncCommand,1,0,NULL,0,0,0,0,0}, - {"flushdb",flushdbCommand,1,0,NULL,0,0,0,0,0}, - {"flushall",flushallCommand,1,0,NULL,0,0,0,0,0}, - {"sort",sortCommand,-2,REDIS_CMD_DENYOOM,NULL,1,1,1,0,0}, - {"info",infoCommand,-1,0,NULL,0,0,0,0,0}, - {"monitor",monitorCommand,1,0,NULL,0,0,0,0,0}, - {"ttl",ttlCommand,2,0,NULL,1,1,1,0,0}, - {"persist",persistCommand,2,0,NULL,1,1,1,0,0}, - {"slaveof",slaveofCommand,3,0,NULL,0,0,0,0,0}, - {"debug",debugCommand,-2,0,NULL,0,0,0,0,0}, - {"config",configCommand,-2,0,NULL,0,0,0,0,0}, - {"subscribe",subscribeCommand,-2,0,NULL,0,0,0,0,0}, - {"unsubscribe",unsubscribeCommand,-1,0,NULL,0,0,0,0,0}, - {"psubscribe",psubscribeCommand,-2,0,NULL,0,0,0,0,0}, - {"punsubscribe",punsubscribeCommand,-1,0,NULL,0,0,0,0,0}, - {"publish",publishCommand,3,REDIS_CMD_FORCE_REPLICATION,NULL,0,0,0,0,0}, - {"watch",watchCommand,-2,0,noPreloadGetKeys,1,-1,1,0,0}, - {"unwatch",unwatchCommand,1,0,NULL,0,0,0,0,0}, - {"cluster",clusterCommand,-2,0,NULL,0,0,0,0,0}, - {"restore",restoreCommand,4,0,NULL,0,0,0,0,0}, - {"migrate",migrateCommand,6,0,NULL,0,0,0,0,0}, - {"dump",dumpCommand,2,0,NULL,0,0,0,0,0}, - {"object",objectCommand,-2,0,NULL,0,0,0,0,0}, - {"client",clientCommand,-2,0,NULL,0,0,0,0,0}, - {"eval",evalCommand,-3,REDIS_CMD_DENYOOM,zunionInterGetKeys,0,0,0,0,0}, - {"evalsha",evalShaCommand,-3,REDIS_CMD_DENYOOM,zunionInterGetKeys,0,0,0,0,0}, - {"slowlog",slowlogCommand,-2,0,NULL,0,0,0,0,0} + {"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,2,2,1,0,0}, + {"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,"w",0,NULL,1,1,1,0,0}, + {"brpoplpush",brpoplpushCommand,4,"wm",0,NULL,1,2,1,0,0}, + {"blpop",blpopCommand,-3,"w",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,"r",0,NULL,1,-1,1,0,0}, + {"sinterstore",sinterstoreCommand,-3,"wm",0,NULL,2,-1,1,0,0}, + {"sunion",sunionCommand,-2,"r",0,NULL,1,-1,1,0,0}, + {"sunionstore",sunionstoreCommand,-3,"wm",0,NULL,2,-1,1,0,0}, + {"sdiff",sdiffCommand,-2,"r",0,NULL,1,-1,1,0,0}, + {"sdiffstore",sdiffstoreCommand,-3,"wm",0,NULL,2,-1,1,0,0}, + {"smembers",sinterCommand,2,"r",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}, + {"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,"r",0,NULL,1,1,1,0,0}, + {"hvals",hvalsCommand,2,"r",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}, + {"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,"r",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}, + {"keys",keysCommand,2,"r",0,NULL,0,0,0,0,0}, + {"dbsize",dbsizeCommand,1,"r",0,NULL,0,0,0,0,0}, + {"auth",authCommand,2,"r",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,"ar",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,"r",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,"wms",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}, + {"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,"r",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}, + {"persist",persistCommand,2,"w",0,NULL,1,1,1,0,0}, + {"slaveof",slaveofCommand,3,"aws",0,NULL,0,0,0,0,0}, + {"debug",debugCommand,-2,"aw",0,NULL,0,0,0,0,0}, + {"config",configCommand,-2,"ar",0,NULL,0,0,0,0,0}, + {"subscribe",subscribeCommand,-2,"rps",0,NULL,0,0,0,0,0}, + {"unsubscribe",unsubscribeCommand,-1,"rps",0,NULL,0,0,0,0,0}, + {"psubscribe",psubscribeCommand,-2,"rps",0,NULL,0,0,0,0,0}, + {"punsubscribe",punsubscribeCommand,-1,"rps",0,NULL,0,0,0,0,0}, + {"publish",publishCommand,3,"rpf",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}, + {"cluster",clusterCommand,-2,"ar",0,NULL,0,0,0,0,0}, + {"restore",restoreCommand,4,"awm",0,NULL,0,0,0,0,0}, + {"migrate",migrateCommand,6,"aw",0,NULL,0,0,0,0,0}, + {"dump",dumpCommand,2,"ar",0,NULL,0,0,0,0,0}, + {"object",objectCommand,-2,"r",0,NULL,0,0,0,0,0}, + {"client",clientCommand,-2,"ar",0,NULL,0,0,0,0,0}, + {"eval",evalCommand,-3,"wms",0,zunionInterGetKeys,0,0,0,0,0}, + {"evalsha",evalShaCommand,-3,"wms",0,zunionInterGetKeys,0,0,0,0,0}, + {"slowlog",slowlogCommand,-2,"r",0,NULL,0,0,0,0,0} }; /*============================ Utility functions ============================ */ @@ -575,6 +593,7 @@ int serverCron(struct aeEventLoop *eventLoop, long long id, void *clientData) { * in objects at every object access, and accuracy is not needed. * To access a global var is faster than calling time(NULL) */ server.unixtime = time(NULL); + /* We have just 22 bits per object for LRU information. * So we use an (eventually wrapping) LRU clock with 10 seconds resolution. * 2^22 bits with 10 seconds resoluton is more or less 1.5 years. @@ -685,7 +704,7 @@ int serverCron(struct aeEventLoop *eventLoop, long long id, void *clientData) { server.auto_aofrewrite_perc && server.appendonly_current_size > server.auto_aofrewrite_min_size) { - int base = server.auto_aofrewrite_base_size ? + long long base = server.auto_aofrewrite_base_size ? server.auto_aofrewrite_base_size : 1; long long growth = (server.appendonly_current_size*100/base) - 100; if (growth >= server.auto_aofrewrite_perc) { @@ -695,6 +714,11 @@ int serverCron(struct aeEventLoop *eventLoop, long long id, void *clientData) { } } + + /* If we postponed an AOF buffer flush, let's try to do it every time the + * cron function is called. */ + if (server.aof_flush_postponed_start) flushAppendOnlyFile(0); + /* Expire a few keys per cycle, only if this is a master. * On slaves we wait for DEL operations synthesized by the master * in order to guarantee a strict consistency. */ @@ -733,7 +757,7 @@ void beforeSleep(struct aeEventLoop *eventLoop) { } /* Write the AOF buffer on disk */ - flushAppendOnlyFile(); + flushAppendOnlyFile(0); } /* =========================== Server initialization ======================== */ @@ -820,6 +844,7 @@ void initServerConfig() { server.lastfsync = time(NULL); server.appendfd = -1; server.appendseldb = -1; /* Make sure the first time will not match */ + server.aof_flush_postponed_start = 0; server.pidfile = zstrdup("/var/run/redis.pid"); server.dbfilename = zstrdup("dump.rdb"); server.appendfilename = zstrdup("appendonly.aof"); @@ -903,7 +928,8 @@ void initServer() { if (server.port != 0) { server.ipfd = anetTcpServer(server.neterr,server.port,server.bindaddr); if (server.ipfd == ANET_ERR) { - redisLog(REDIS_WARNING, "Opening port: %s", server.neterr); + redisLog(REDIS_WARNING, "Opening port %d: %s", + server.port, server.neterr); exit(1); } } @@ -965,6 +991,7 @@ void initServer() { if (server.cluster_enabled) clusterInit(); scriptingInit(); slowlogInit(); + bioInit(); srand(time(NULL)^getpid()); } @@ -976,8 +1003,24 @@ void populateCommandTable(void) { for (j = 0; j < numcommands; j++) { struct redisCommand *c = redisCommandTable+j; + char *f = c->sflags; int retval; + while(*f != '\0') { + switch(*f) { + case 'w': c->flags |= REDIS_CMD_WRITE; break; + case 'r': c->flags |= REDIS_CMD_READONLY; break; + case 'm': c->flags |= REDIS_CMD_DENYOOM; break; + case 'a': c->flags |= REDIS_CMD_ADMIN; break; + case 'p': c->flags |= REDIS_CMD_PUBSUB; break; + case 'f': c->flags |= REDIS_CMD_FORCE_REPLICATION; break; + case 's': c->flags |= REDIS_CMD_NOSCRIPT; break; + case 'R': c->flags |= REDIS_CMD_RANDOM; break; + default: redisPanic("Unsupported command flag"); break; + } + f++; + } + retval = dictAdd(server.commands, sdsnew(c->name), c); assert(retval == DICT_OK); } @@ -1022,9 +1065,9 @@ void call(redisClient *c) { slowlogPushEntryIfNeeded(c->argv,c->argc,duration); c->cmd->calls++; - if (server.appendonly && dirty) + if (server.appendonly && dirty > 0) feedAppendOnlyFile(c->cmd,c->db->id,c->argv,c->argc); - if ((dirty || c->cmd->flags & REDIS_CMD_FORCE_REPLICATION) && + if ((dirty > 0 || c->cmd->flags & REDIS_CMD_FORCE_REPLICATION) && listLength(server.slaves)) replicationFeedSlaves(server.slaves,c->db->id,c->argv,c->argc); if (listLength(server.monitors)) @@ -1152,19 +1195,29 @@ int processCommand(redisClient *c) { /*================================== Shutdown =============================== */ int prepareForShutdown() { - redisLog(REDIS_WARNING,"User requested shutdown, saving DB..."); + redisLog(REDIS_WARNING,"User requested shutdown..."); /* Kill the saving child if there is a background saving in progress. We want to avoid race conditions, for instance our saving child may overwrite the synchronous saving did by SHUTDOWN. */ if (server.bgsavechildpid != -1) { - redisLog(REDIS_WARNING,"There is a live saving child. Killing it!"); + redisLog(REDIS_WARNING,"There is a child saving an .rdb. Killing it!"); kill(server.bgsavechildpid,SIGKILL); rdbRemoveTempFile(server.bgsavechildpid); } if (server.appendonly) { + /* Kill the AOF saving child as the AOF we already have may be longer + * but contains the full dataset anyway. */ + if (server.bgrewritechildpid != -1) { + redisLog(REDIS_WARNING, + "There is a child rewriting the AOF. Killing it!"); + kill(server.bgrewritechildpid,SIGKILL); + } /* Append only file: fsync() the AOF and exit */ + redisLog(REDIS_NOTICE,"Calling fsync() on the AOF file."); aof_fsync(server.appendfd); - } else if (server.saveparamslen > 0) { + } + if (server.saveparamslen > 0) { + redisLog(REDIS_NOTICE,"Saving the final RDB snapshot before exiting."); /* Snapshotting. Perform a SYNC SAVE and exit */ if (rdbSave(server.dbfilename) != REDIS_OK) { /* Ooops.. error saving! The best we can do is to continue @@ -1172,14 +1225,19 @@ int prepareForShutdown() { * in the next cron() Redis will be notified that the background * saving aborted, handling special stuff like slaves pending for * synchronization... */ - redisLog(REDIS_WARNING,"Error trying to save the DB, can't exit"); + redisLog(REDIS_WARNING,"Error trying to save the DB, can't exit."); return REDIS_ERR; } - } else { - redisLog(REDIS_WARNING,"Not saving DB."); } - if (server.daemonize) unlink(server.pidfile); - redisLog(REDIS_WARNING,"Server exit now, bye bye..."); + if (server.daemonize) { + redisLog(REDIS_NOTICE,"Removing the pid file."); + unlink(server.pidfile); + } + /* Close the listening sockets. Apparently this allows faster restarts. */ + if (server.ipfd != -1) close(server.ipfd); + if (server.sofd != -1) close(server.sofd); + + redisLog(REDIS_WARNING,"Redis is now ready to exit, bye bye..."); return REDIS_OK; } @@ -1711,6 +1769,7 @@ void redisAsciiArt(void) { int main(int argc, char **argv) { long long start; + zmalloc_enable_thread_safeness(); initServerConfig(); if (argc == 2) { if (strcmp(argv[1], "-v") == 0 || @@ -1758,8 +1817,10 @@ static void *getMcontextEip(ucontext_t *uc) { #elif defined(__APPLE__) && !defined(MAC_OS_X_VERSION_10_6) #if __x86_64__ return (void*) uc->uc_mcontext->__ss.__rip; - #else + #elif __i386__ return (void*) uc->uc_mcontext->__ss.__eip; + #else + return (void*) uc->uc_mcontext->__ss.__srr0; #endif #elif defined(__APPLE__) && defined(MAC_OS_X_VERSION_10_6) #if defined(_STRUCT_X86_THREAD_STATE64) && !defined(__i386__)