#include "redis.h"
#include "slowlog.h"
+#include "bio.h"
#ifdef HAVE_BACKTRACE
#include <execinfo.h>
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. */
/* 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},
- {"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,1,1,1,0,0},
+ {"migrate",migrateCommand,6,"aw",0,NULL,0,0,0,0,0},
+ {"asking",askingCommand,1,"r",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},
+ {"script",scriptCommand,-2,"ras",0,NULL,0,0,0,0,0}
};
/*============================ Utility functions ============================ */
return ust;
}
+/* Return the UNIX time in milliseconds */
+long long mstime(void) {
+ return ustime()/1000;
+}
+
/*====================== Hash table type implementation ==================== */
/* This is an hash table type that uses the SDS dynamic strings libary as
}
}
-/* Sets type and diskstore negative caching hash table */
+/* Sets type hash table */
dictType setDictType = {
dictEncObjHash, /* hash function */
NULL, /* key dup */
time_t t;
if ((de = dictGetRandomKey(db->expires)) == NULL) break;
- t = (time_t) dictGetEntryVal(de);
+ t = (time_t) dictGetVal(de);
if (now > t) {
- sds key = dictGetEntryKey(de);
+ sds key = dictGetKey(de);
robj *keyobj = createStringObject(key,sdslen(key));
propagateExpire(db,keyobj);
* 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.
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) {
}
}
+
+ /* 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. */
}
/* Write the AOF buffer on disk */
- flushAppendOnlyFile();
+ flushAppendOnlyFile(0);
}
/* =========================== Server initialization ======================== */
"-ERR source and destination objects are the same\r\n"));
shared.outofrangeerr = createObject(REDIS_STRING,sdsnew(
"-ERR index out of range\r\n"));
+ shared.noscripterr = createObject(REDIS_STRING,sdsnew(
+ "-NOSCRIPT No matching script. Please use EVAL.\r\n"));
shared.loadingerr = createObject(REDIS_STRING,sdsnew(
"-LOADING Redis is loading the dataset in memory\r\n"));
+ shared.slowscripterr = createObject(REDIS_STRING,sdsnew(
+ "-BUSY Redis is busy running a script. Please wait or stop the server with SHUTDOWN.\r\n"));
shared.space = createObject(REDIS_STRING,sdsnew(" "));
shared.colon = createObject(REDIS_STRING,sdsnew(":"));
shared.plus = createObject(REDIS_STRING,sdsnew("+"));
server.port = REDIS_SERVERPORT;
server.bindaddr = NULL;
server.unixsocket = NULL;
+ server.unixsocketperm = 0;
server.ipfd = -1;
server.sofd = -1;
server.dbnum = REDIS_DEFAULT_DBNUM;
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");
server.requirepass = NULL;
server.rdbcompression = 1;
server.activerehashing = 1;
- server.maxclients = 0;
+ server.maxclients = REDIS_MAX_CLIENTS;
server.bpop_blocked_clients = 0;
server.maxmemory = 0;
server.maxmemory_policy = REDIS_MAXMEMORY_VOLATILE_LRU;
server.zset_max_ziplist_entries = REDIS_ZSET_MAX_ZIPLIST_ENTRIES;
server.zset_max_ziplist_value = REDIS_ZSET_MAX_ZIPLIST_VALUE;
server.shutdown_asap = 0;
+ server.repl_ping_slave_period = REDIS_REPL_PING_SLAVE_PERIOD;
+ server.repl_timeout = REDIS_REPL_TIMEOUT;
server.cluster_enabled = 0;
server.cluster.configfile = zstrdup("nodes.conf");
+ server.lua_time_limit = REDIS_LUA_TIME_LIMIT;
+ server.lua_client = NULL;
+ server.lua_timedout = 0;
updateLRUClock();
resetServerSaveParams();
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);
}
}
if (server.unixsocket != NULL) {
unlink(server.unixsocket); /* don't care if this fails */
- server.sofd = anetUnixServer(server.neterr,server.unixsocket);
+ server.sofd = anetUnixServer(server.neterr,server.unixsocket,server.unixsocketperm);
if (server.sofd == ANET_ERR) {
redisLog(REDIS_WARNING, "Opening socket: %s", server.neterr);
exit(1);
}
if (server.cluster_enabled) clusterInit();
+ scriptingInit();
slowlogInit();
+ bioInit();
srand(time(NULL)^getpid());
+
+ /* Try to raise the max number of open files accordingly to the
+ * configured max number of clients. Also account for 32 additional
+ * file descriptors as we need a few more for persistence, listening
+ * sockets, log files and so forth. */
+ {
+ rlim_t maxfiles = server.maxclients+32;
+ struct rlimit limit;
+
+ if (maxfiles < 1024) maxfiles = 1024;
+ if (getrlimit(RLIMIT_NOFILE,&limit) == -1) {
+ redisLog(REDIS_WARNING,"Unable to obtain the current NOFILE limit (%s), assuming 1024 and setting the max clients configuration accordingly.",
+ strerror(errno));
+ server.maxclients = 1024-32;
+ } else {
+ rlim_t oldlimit = limit.rlim_cur;
+
+ /* Set the max number of files if the current limit is not enough
+ * for our needs. */
+ if (oldlimit < maxfiles) {
+ limit.rlim_cur = maxfiles;
+ limit.rlim_max = maxfiles;
+ if (setrlimit(RLIMIT_NOFILE,&limit) == -1) {
+ server.maxclients = oldlimit-32;
+ redisLog(REDIS_WARNING,"Unable to set the max number of files limit to %d (%s), setting the max clients configuration to %d.",
+ (int) maxfiles, strerror(errno), (int) server.maxclients);
+ } else {
+ redisLog(REDIS_NOTICE,"Max number of open files set to %d",
+ (int) maxfiles);
+ }
+ }
+ }
+ }
}
/* Populates the Redis Command Table starting from the hard coded list
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);
}
}
/* Call() is the core of Redis execution of a command */
-void call(redisClient *c, struct redisCommand *cmd) {
+void call(redisClient *c) {
long long dirty, start = ustime(), duration;
dirty = server.dirty;
- cmd->proc(c);
+ c->cmd->proc(c);
dirty = server.dirty-dirty;
duration = ustime()-start;
- cmd->microseconds += duration;
+ c->cmd->microseconds += duration;
slowlogPushEntryIfNeeded(c->argv,c->argc,duration);
- cmd->calls++;
+ c->cmd->calls++;
- if (server.appendonly && dirty)
- feedAppendOnlyFile(cmd,c->db->id,c->argv,c->argc);
- if ((dirty || cmd->flags & REDIS_CMD_FORCE_REPLICATION) &&
+ if (server.appendonly && dirty > 0)
+ feedAppendOnlyFile(c->cmd,c->db->id,c->argv,c->argc);
+ 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))
* and other operations can be performed by the caller. Otherwise
* if 0 is returned the client was destroied (i.e. after QUIT). */
int processCommand(redisClient *c) {
- struct redisCommand *cmd;
-
/* The QUIT command is handled separately. Normal command procs will
* go through checking for replication and QUIT will cause trouble
* when FORCE_REPLICATION is enabled and would be implemented in
}
/* Now lookup the command and check ASAP about trivial error conditions
- * such wrong arity, bad command name and so forth. */
- cmd = lookupCommand(c->argv[0]->ptr);
- if (!cmd) {
+ * such as wrong arity, bad command name and so forth. */
+ c->cmd = lookupCommand(c->argv[0]->ptr);
+ if (!c->cmd) {
addReplyErrorFormat(c,"unknown command '%s'",
(char*)c->argv[0]->ptr);
return REDIS_OK;
- } else if ((cmd->arity > 0 && cmd->arity != c->argc) ||
- (c->argc < -cmd->arity)) {
+ } else if ((c->cmd->arity > 0 && c->cmd->arity != c->argc) ||
+ (c->argc < -c->cmd->arity)) {
addReplyErrorFormat(c,"wrong number of arguments for '%s' command",
- cmd->name);
+ c->cmd->name);
return REDIS_OK;
}
/* Check if the user is authenticated */
- if (server.requirepass && !c->authenticated && cmd->proc != authCommand) {
+ if (server.requirepass && !c->authenticated && c->cmd->proc != authCommand)
+ {
addReplyError(c,"operation not permitted");
return REDIS_OK;
}
/* If cluster is enabled, redirect here */
if (server.cluster_enabled &&
- !(cmd->getkeys_proc == NULL && cmd->firstkey == 0)) {
+ !(c->cmd->getkeys_proc == NULL && c->cmd->firstkey == 0)) {
int hashslot;
if (server.cluster.state != REDIS_CLUSTER_OK) {
return REDIS_OK;
} else {
int ask;
- clusterNode *n = getNodeByQuery(c,cmd,c->argv,c->argc,&hashslot,&ask);
+ clusterNode *n = getNodeByQuery(c,c->cmd,c->argv,c->argc,&hashslot,&ask);
if (n == NULL) {
addReplyError(c,"Multi keys request invalid in cluster");
return REDIS_OK;
* keys in the dataset). If there are not the only thing we can do
* is returning an error. */
if (server.maxmemory) freeMemoryIfNeeded();
- if (server.maxmemory && (cmd->flags & REDIS_CMD_DENYOOM) &&
+ if (server.maxmemory && (c->cmd->flags & REDIS_CMD_DENYOOM) &&
zmalloc_used_memory() > server.maxmemory)
{
addReplyError(c,"command not allowed when used memory > 'maxmemory'");
/* Only allow SUBSCRIBE and UNSUBSCRIBE in the context of Pub/Sub */
if ((dictSize(c->pubsub_channels) > 0 || listLength(c->pubsub_patterns) > 0)
&&
- cmd->proc != subscribeCommand && cmd->proc != unsubscribeCommand &&
- cmd->proc != psubscribeCommand && cmd->proc != punsubscribeCommand) {
+ c->cmd->proc != subscribeCommand &&
+ c->cmd->proc != unsubscribeCommand &&
+ c->cmd->proc != psubscribeCommand &&
+ c->cmd->proc != punsubscribeCommand) {
addReplyError(c,"only (P)SUBSCRIBE / (P)UNSUBSCRIBE / QUIT allowed in this context");
return REDIS_OK;
}
* we are a slave with a broken link with master. */
if (server.masterhost && server.replstate != REDIS_REPL_CONNECTED &&
server.repl_serve_stale_data == 0 &&
- cmd->proc != infoCommand && cmd->proc != slaveofCommand)
+ c->cmd->proc != infoCommand && c->cmd->proc != slaveofCommand)
{
addReplyError(c,
"link with MASTER is down and slave-serve-stale-data is set to no");
}
/* Loading DB? Return an error if the command is not INFO */
- if (server.loading && cmd->proc != infoCommand) {
+ if (server.loading && c->cmd->proc != infoCommand) {
addReply(c, shared.loadingerr);
return REDIS_OK;
}
+ /* Lua script too slow? */
+ if (server.lua_timedout && c->cmd->proc != shutdownCommand) {
+ addReply(c, shared.slowscripterr);
+ return REDIS_OK;
+ }
+
/* Exec the command */
if (c->flags & REDIS_MULTI &&
- cmd->proc != execCommand && cmd->proc != discardCommand &&
- cmd->proc != multiCommand && cmd->proc != watchCommand)
+ c->cmd->proc != execCommand && c->cmd->proc != discardCommand &&
+ c->cmd->proc != multiCommand && c->cmd->proc != watchCommand)
{
- queueMultiCommand(c,cmd);
+ queueMultiCommand(c);
addReply(c,shared.queued);
} else {
- call(c,cmd);
+ call(c);
}
return REDIS_OK;
}
/*================================== 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
* 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);
+ if (server.unixsocket) {
+ redisLog(REDIS_NOTICE,"Removing the unix socket file.");
+ unlink(server.unixsocket); /* don't care if this fails */
+ }
+
+ redisLog(REDIS_WARNING,"Redis is now ready to exit, bye bye...");
return REDIS_OK;
}
/*================================== Commands =============================== */
void authCommand(redisClient *c) {
- if (!server.requirepass || !strcmp(c->argv[1]->ptr, server.requirepass)) {
+ if (!server.requirepass) {
+ addReplyError(c,"Client sent AUTH, but no password is set");
+ } else if (!strcmp(c->argv[1]->ptr, server.requirepass)) {
c->authenticated = 1;
addReply(c,shared.ok);
} else {
"used_memory_rss:%zu\r\n"
"used_memory_peak:%zu\r\n"
"used_memory_peak_human:%s\r\n"
+ "used_memory_lua:%lld\r\n"
"mem_fragmentation_ratio:%.2f\r\n"
"mem_allocator:%s\r\n",
zmalloc_used_memory(),
zmalloc_get_rss(),
server.stat_peak_memory,
peak_hmem,
+ ((long long)lua_gc(server.lua,LUA_GCCOUNT,0))*1024LL,
zmalloc_get_fragmentation_ratio(),
ZMALLOC_LIB
);
"# CPU\r\n"
"used_cpu_sys:%.2f\r\n"
"used_cpu_user:%.2f\r\n"
- "used_cpu_sys_childrens:%.2f\r\n"
- "used_cpu_user_childrens:%.2f\r\n",
- (float)self_ru.ru_utime.tv_sec+(float)self_ru.ru_utime.tv_usec/1000000,
+ "used_cpu_sys_children:%.2f\r\n"
+ "used_cpu_user_children:%.2f\r\n",
(float)self_ru.ru_stime.tv_sec+(float)self_ru.ru_stime.tv_usec/1000000,
- (float)c_ru.ru_utime.tv_sec+(float)c_ru.ru_utime.tv_usec/1000000,
- (float)c_ru.ru_stime.tv_sec+(float)c_ru.ru_stime.tv_usec/1000000);
+ (float)self_ru.ru_utime.tv_sec+(float)self_ru.ru_utime.tv_usec/1000000,
+ (float)c_ru.ru_stime.tv_sec+(float)c_ru.ru_stime.tv_usec/1000000,
+ (float)c_ru.ru_utime.tv_sec+(float)c_ru.ru_utime.tv_usec/1000000);
}
/* cmdtime */
server.maxmemory_policy == REDIS_MAXMEMORY_VOLATILE_RANDOM)
{
de = dictGetRandomKey(dict);
- bestkey = dictGetEntryKey(de);
+ bestkey = dictGetKey(de);
}
/* volatile-lru and allkeys-lru policy */
robj *o;
de = dictGetRandomKey(dict);
- thiskey = dictGetEntryKey(de);
+ thiskey = dictGetKey(de);
/* When policy is volatile-lru we need an additonal lookup
* to locate the real key, as dict is set to db->expires. */
if (server.maxmemory_policy == REDIS_MAXMEMORY_VOLATILE_LRU)
de = dictFind(db->dict, thiskey);
- o = dictGetEntryVal(de);
+ o = dictGetVal(de);
thisval = estimateObjectIdleTime(o);
/* Higher idle time is better candidate for deletion */
long thisval;
de = dictGetRandomKey(dict);
- thiskey = dictGetEntryKey(de);
- thisval = (long) dictGetEntryVal(de);
+ thiskey = dictGetKey(de);
+ thisval = (long) dictGetVal(de);
/* Expire sooner (minor expire unix timestamp) is better
* candidate for deletion */
int main(int argc, char **argv) {
long long start;
+ zmalloc_enable_thread_safeness();
initServerConfig();
if (argc == 2) {
if (strcmp(argv[1], "-v") == 0 ||
if (loadAppendOnlyFile(server.appendfilename) == REDIS_OK)
redisLog(REDIS_NOTICE,"DB loaded from append only file: %.3f seconds",(float)(ustime()-start)/1000000);
} else {
- if (rdbLoad(server.dbfilename) == REDIS_OK)
- redisLog(REDIS_NOTICE,"DB loaded from disk: %.3f seconds",(float)(ustime()-start)/1000000);
+ if (rdbLoad(server.dbfilename) == REDIS_OK) {
+ redisLog(REDIS_NOTICE,"DB loaded from disk: %.3f seconds",
+ (float)(ustime()-start)/1000000);
+ } else if (errno != ENOENT) {
+ redisLog(REDIS_WARNING,"Fatal error loading the DB. Exiting.");
+ exit(1);
+ }
}
if (server.ipfd > 0)
redisLog(REDIS_NOTICE,"The server is now ready to accept connections on port %d", server.port);
#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__)
projects / redis.git / blobdiff