struct redisServer server; /* server global state */
struct redisCommand *commandTable;
struct redisCommand readonlyCommandTable[] = {
- {"get",getCommand,2,REDIS_CMD_INLINE,NULL,1,1,1},
- {"set",setCommand,3,REDIS_CMD_BULK|REDIS_CMD_DENYOOM,NULL,0,0,0},
- {"setnx",setnxCommand,3,REDIS_CMD_BULK|REDIS_CMD_DENYOOM,NULL,0,0,0},
- {"setex",setexCommand,4,REDIS_CMD_BULK|REDIS_CMD_DENYOOM,NULL,0,0,0},
- {"append",appendCommand,3,REDIS_CMD_BULK|REDIS_CMD_DENYOOM,NULL,1,1,1},
- {"substr",substrCommand,4,REDIS_CMD_INLINE,NULL,1,1,1},
- {"strlen",strlenCommand,2,REDIS_CMD_INLINE,NULL,1,1,1},
- {"del",delCommand,-2,REDIS_CMD_INLINE,NULL,0,0,0},
- {"exists",existsCommand,2,REDIS_CMD_INLINE,NULL,1,1,1},
- {"incr",incrCommand,2,REDIS_CMD_INLINE|REDIS_CMD_DENYOOM,NULL,1,1,1},
- {"decr",decrCommand,2,REDIS_CMD_INLINE|REDIS_CMD_DENYOOM,NULL,1,1,1},
- {"mget",mgetCommand,-2,REDIS_CMD_INLINE,NULL,1,-1,1},
- {"rpush",rpushCommand,3,REDIS_CMD_BULK|REDIS_CMD_DENYOOM,NULL,1,1,1},
- {"lpush",lpushCommand,3,REDIS_CMD_BULK|REDIS_CMD_DENYOOM,NULL,1,1,1},
- {"rpushx",rpushxCommand,3,REDIS_CMD_BULK|REDIS_CMD_DENYOOM,NULL,1,1,1},
- {"lpushx",lpushxCommand,3,REDIS_CMD_BULK|REDIS_CMD_DENYOOM,NULL,1,1,1},
- {"linsert",linsertCommand,5,REDIS_CMD_BULK|REDIS_CMD_DENYOOM,NULL,1,1,1},
- {"rpop",rpopCommand,2,REDIS_CMD_INLINE,NULL,1,1,1},
- {"lpop",lpopCommand,2,REDIS_CMD_INLINE,NULL,1,1,1},
- {"brpop",brpopCommand,-3,REDIS_CMD_INLINE,NULL,1,1,1},
- {"blpop",blpopCommand,-3,REDIS_CMD_INLINE,NULL,1,1,1},
- {"llen",llenCommand,2,REDIS_CMD_INLINE,NULL,1,1,1},
- {"lindex",lindexCommand,3,REDIS_CMD_INLINE,NULL,1,1,1},
- {"lset",lsetCommand,4,REDIS_CMD_BULK|REDIS_CMD_DENYOOM,NULL,1,1,1},
- {"lrange",lrangeCommand,4,REDIS_CMD_INLINE,NULL,1,1,1},
- {"ltrim",ltrimCommand,4,REDIS_CMD_INLINE,NULL,1,1,1},
- {"lrem",lremCommand,4,REDIS_CMD_BULK,NULL,1,1,1},
- {"rpoplpush",rpoplpushcommand,3,REDIS_CMD_INLINE|REDIS_CMD_DENYOOM,NULL,1,2,1},
- {"sadd",saddCommand,3,REDIS_CMD_BULK|REDIS_CMD_DENYOOM,NULL,1,1,1},
- {"srem",sremCommand,3,REDIS_CMD_BULK,NULL,1,1,1},
- {"smove",smoveCommand,4,REDIS_CMD_BULK,NULL,1,2,1},
- {"sismember",sismemberCommand,3,REDIS_CMD_BULK,NULL,1,1,1},
- {"scard",scardCommand,2,REDIS_CMD_INLINE,NULL,1,1,1},
- {"spop",spopCommand,2,REDIS_CMD_INLINE,NULL,1,1,1},
- {"srandmember",srandmemberCommand,2,REDIS_CMD_INLINE,NULL,1,1,1},
- {"sinter",sinterCommand,-2,REDIS_CMD_INLINE|REDIS_CMD_DENYOOM,NULL,1,-1,1},
- {"sinterstore",sinterstoreCommand,-3,REDIS_CMD_INLINE|REDIS_CMD_DENYOOM,NULL,2,-1,1},
- {"sunion",sunionCommand,-2,REDIS_CMD_INLINE|REDIS_CMD_DENYOOM,NULL,1,-1,1},
- {"sunionstore",sunionstoreCommand,-3,REDIS_CMD_INLINE|REDIS_CMD_DENYOOM,NULL,2,-1,1},
- {"sdiff",sdiffCommand,-2,REDIS_CMD_INLINE|REDIS_CMD_DENYOOM,NULL,1,-1,1},
- {"sdiffstore",sdiffstoreCommand,-3,REDIS_CMD_INLINE|REDIS_CMD_DENYOOM,NULL,2,-1,1},
- {"smembers",sinterCommand,2,REDIS_CMD_INLINE,NULL,1,1,1},
- {"zadd",zaddCommand,4,REDIS_CMD_BULK|REDIS_CMD_DENYOOM,NULL,1,1,1},
- {"zincrby",zincrbyCommand,4,REDIS_CMD_BULK|REDIS_CMD_DENYOOM,NULL,1,1,1},
- {"zrem",zremCommand,3,REDIS_CMD_BULK,NULL,1,1,1},
- {"zremrangebyscore",zremrangebyscoreCommand,4,REDIS_CMD_INLINE,NULL,1,1,1},
- {"zremrangebyrank",zremrangebyrankCommand,4,REDIS_CMD_INLINE,NULL,1,1,1},
- {"zunionstore",zunionstoreCommand,-4,REDIS_CMD_INLINE|REDIS_CMD_DENYOOM,zunionInterBlockClientOnSwappedKeys,0,0,0},
- {"zinterstore",zinterstoreCommand,-4,REDIS_CMD_INLINE|REDIS_CMD_DENYOOM,zunionInterBlockClientOnSwappedKeys,0,0,0},
- {"zrange",zrangeCommand,-4,REDIS_CMD_INLINE,NULL,1,1,1},
- {"zrangebyscore",zrangebyscoreCommand,-4,REDIS_CMD_INLINE,NULL,1,1,1},
- {"zcount",zcountCommand,4,REDIS_CMD_INLINE,NULL,1,1,1},
- {"zrevrange",zrevrangeCommand,-4,REDIS_CMD_INLINE,NULL,1,1,1},
- {"zcard",zcardCommand,2,REDIS_CMD_INLINE,NULL,1,1,1},
- {"zscore",zscoreCommand,3,REDIS_CMD_BULK|REDIS_CMD_DENYOOM,NULL,1,1,1},
- {"zrank",zrankCommand,3,REDIS_CMD_BULK,NULL,1,1,1},
- {"zrevrank",zrevrankCommand,3,REDIS_CMD_BULK,NULL,1,1,1},
- {"hset",hsetCommand,4,REDIS_CMD_BULK|REDIS_CMD_DENYOOM,NULL,1,1,1},
- {"hsetnx",hsetnxCommand,4,REDIS_CMD_BULK|REDIS_CMD_DENYOOM,NULL,1,1,1},
- {"hget",hgetCommand,3,REDIS_CMD_BULK,NULL,1,1,1},
- {"hmset",hmsetCommand,-4,REDIS_CMD_BULK|REDIS_CMD_DENYOOM,NULL,1,1,1},
- {"hmget",hmgetCommand,-3,REDIS_CMD_BULK,NULL,1,1,1},
- {"hincrby",hincrbyCommand,4,REDIS_CMD_INLINE|REDIS_CMD_DENYOOM,NULL,1,1,1},
- {"hdel",hdelCommand,3,REDIS_CMD_BULK,NULL,1,1,1},
- {"hlen",hlenCommand,2,REDIS_CMD_INLINE,NULL,1,1,1},
- {"hkeys",hkeysCommand,2,REDIS_CMD_INLINE,NULL,1,1,1},
- {"hvals",hvalsCommand,2,REDIS_CMD_INLINE,NULL,1,1,1},
- {"hgetall",hgetallCommand,2,REDIS_CMD_INLINE,NULL,1,1,1},
- {"hexists",hexistsCommand,3,REDIS_CMD_BULK,NULL,1,1,1},
- {"incrby",incrbyCommand,3,REDIS_CMD_INLINE|REDIS_CMD_DENYOOM,NULL,1,1,1},
- {"decrby",decrbyCommand,3,REDIS_CMD_INLINE|REDIS_CMD_DENYOOM,NULL,1,1,1},
- {"getset",getsetCommand,3,REDIS_CMD_BULK|REDIS_CMD_DENYOOM,NULL,1,1,1},
- {"mset",msetCommand,-3,REDIS_CMD_BULK|REDIS_CMD_DENYOOM,NULL,1,-1,2},
- {"msetnx",msetnxCommand,-3,REDIS_CMD_BULK|REDIS_CMD_DENYOOM,NULL,1,-1,2},
- {"randomkey",randomkeyCommand,1,REDIS_CMD_INLINE,NULL,0,0,0},
- {"select",selectCommand,2,REDIS_CMD_INLINE,NULL,0,0,0},
- {"move",moveCommand,3,REDIS_CMD_INLINE,NULL,1,1,1},
- {"rename",renameCommand,3,REDIS_CMD_INLINE,NULL,1,1,1},
- {"renamenx",renamenxCommand,3,REDIS_CMD_INLINE,NULL,1,1,1},
- {"expire",expireCommand,3,REDIS_CMD_INLINE,NULL,0,0,0},
- {"expireat",expireatCommand,3,REDIS_CMD_INLINE,NULL,0,0,0},
- {"keys",keysCommand,2,REDIS_CMD_INLINE,NULL,0,0,0},
- {"dbsize",dbsizeCommand,1,REDIS_CMD_INLINE,NULL,0,0,0},
- {"auth",authCommand,2,REDIS_CMD_INLINE,NULL,0,0,0},
- {"ping",pingCommand,1,REDIS_CMD_INLINE,NULL,0,0,0},
- {"echo",echoCommand,2,REDIS_CMD_BULK,NULL,0,0,0},
- {"save",saveCommand,1,REDIS_CMD_INLINE,NULL,0,0,0},
- {"bgsave",bgsaveCommand,1,REDIS_CMD_INLINE,NULL,0,0,0},
- {"bgrewriteaof",bgrewriteaofCommand,1,REDIS_CMD_INLINE,NULL,0,0,0},
- {"shutdown",shutdownCommand,1,REDIS_CMD_INLINE,NULL,0,0,0},
- {"lastsave",lastsaveCommand,1,REDIS_CMD_INLINE,NULL,0,0,0},
- {"type",typeCommand,2,REDIS_CMD_INLINE,NULL,1,1,1},
- {"multi",multiCommand,1,REDIS_CMD_INLINE,NULL,0,0,0},
- {"exec",execCommand,1,REDIS_CMD_INLINE|REDIS_CMD_DENYOOM,execBlockClientOnSwappedKeys,0,0,0},
- {"discard",discardCommand,1,REDIS_CMD_INLINE,NULL,0,0,0},
- {"sync",syncCommand,1,REDIS_CMD_INLINE,NULL,0,0,0},
- {"flushdb",flushdbCommand,1,REDIS_CMD_INLINE,NULL,0,0,0},
- {"flushall",flushallCommand,1,REDIS_CMD_INLINE,NULL,0,0,0},
- {"sort",sortCommand,-2,REDIS_CMD_INLINE|REDIS_CMD_DENYOOM,NULL,1,1,1},
- {"info",infoCommand,1,REDIS_CMD_INLINE,NULL,0,0,0},
- {"monitor",monitorCommand,1,REDIS_CMD_INLINE,NULL,0,0,0},
- {"ttl",ttlCommand,2,REDIS_CMD_INLINE,NULL,1,1,1},
- {"persist",persistCommand,2,REDIS_CMD_INLINE,NULL,1,1,1},
- {"slaveof",slaveofCommand,3,REDIS_CMD_INLINE,NULL,0,0,0},
- {"debug",debugCommand,-2,REDIS_CMD_INLINE,NULL,0,0,0},
- {"config",configCommand,-2,REDIS_CMD_BULK,NULL,0,0,0},
- {"subscribe",subscribeCommand,-2,REDIS_CMD_INLINE,NULL,0,0,0},
- {"unsubscribe",unsubscribeCommand,-1,REDIS_CMD_INLINE,NULL,0,0,0},
- {"psubscribe",psubscribeCommand,-2,REDIS_CMD_INLINE,NULL,0,0,0},
- {"punsubscribe",punsubscribeCommand,-1,REDIS_CMD_INLINE,NULL,0,0,0},
- {"publish",publishCommand,3,REDIS_CMD_BULK|REDIS_CMD_FORCE_REPLICATION,NULL,0,0,0},
- {"watch",watchCommand,-2,REDIS_CMD_INLINE,NULL,0,0,0},
- {"unwatch",unwatchCommand,1,REDIS_CMD_INLINE,NULL,0,0,0}
+ {"get",getCommand,2,0,NULL,1,1,1},
+ {"set",setCommand,3,REDIS_CMD_DENYOOM,NULL,0,0,0},
+ {"setnx",setnxCommand,3,REDIS_CMD_DENYOOM,NULL,0,0,0},
+ {"setex",setexCommand,4,REDIS_CMD_DENYOOM,NULL,0,0,0},
+ {"append",appendCommand,3,REDIS_CMD_DENYOOM,NULL,1,1,1},
+ {"substr",substrCommand,4,0,NULL,1,1,1},
+ {"strlen",strlenCommand,2,0,NULL,1,1,1},
+ {"del",delCommand,-2,0,NULL,0,0,0},
+ {"exists",existsCommand,2,0,NULL,1,1,1},
+ {"incr",incrCommand,2,REDIS_CMD_DENYOOM,NULL,1,1,1},
+ {"decr",decrCommand,2,REDIS_CMD_DENYOOM,NULL,1,1,1},
+ {"mget",mgetCommand,-2,0,NULL,1,-1,1},
+ {"rpush",rpushCommand,3,REDIS_CMD_DENYOOM,NULL,1,1,1},
+ {"lpush",lpushCommand,3,REDIS_CMD_DENYOOM,NULL,1,1,1},
+ {"rpushx",rpushxCommand,3,REDIS_CMD_DENYOOM,NULL,1,1,1},
+ {"lpushx",lpushxCommand,3,REDIS_CMD_DENYOOM,NULL,1,1,1},
+ {"linsert",linsertCommand,5,REDIS_CMD_DENYOOM,NULL,1,1,1},
+ {"rpop",rpopCommand,2,0,NULL,1,1,1},
+ {"lpop",lpopCommand,2,0,NULL,1,1,1},
+ {"brpop",brpopCommand,-3,0,NULL,1,1,1},
+ {"blpop",blpopCommand,-3,0,NULL,1,1,1},
+ {"llen",llenCommand,2,0,NULL,1,1,1},
+ {"lindex",lindexCommand,3,0,NULL,1,1,1},
+ {"lset",lsetCommand,4,REDIS_CMD_DENYOOM,NULL,1,1,1},
+ {"lrange",lrangeCommand,4,0,NULL,1,1,1},
+ {"ltrim",ltrimCommand,4,0,NULL,1,1,1},
+ {"lrem",lremCommand,4,0,NULL,1,1,1},
+ {"rpoplpush",rpoplpushcommand,3,REDIS_CMD_DENYOOM,NULL,1,2,1},
+ {"sadd",saddCommand,3,REDIS_CMD_DENYOOM,NULL,1,1,1},
+ {"srem",sremCommand,3,0,NULL,1,1,1},
+ {"smove",smoveCommand,4,0,NULL,1,2,1},
+ {"sismember",sismemberCommand,3,0,NULL,1,1,1},
+ {"scard",scardCommand,2,0,NULL,1,1,1},
+ {"spop",spopCommand,2,0,NULL,1,1,1},
+ {"srandmember",srandmemberCommand,2,0,NULL,1,1,1},
+ {"sinter",sinterCommand,-2,REDIS_CMD_DENYOOM,NULL,1,-1,1},
+ {"sinterstore",sinterstoreCommand,-3,REDIS_CMD_DENYOOM,NULL,2,-1,1},
+ {"sunion",sunionCommand,-2,REDIS_CMD_DENYOOM,NULL,1,-1,1},
+ {"sunionstore",sunionstoreCommand,-3,REDIS_CMD_DENYOOM,NULL,2,-1,1},
+ {"sdiff",sdiffCommand,-2,REDIS_CMD_DENYOOM,NULL,1,-1,1},
+ {"sdiffstore",sdiffstoreCommand,-3,REDIS_CMD_DENYOOM,NULL,2,-1,1},
+ {"smembers",sinterCommand,2,0,NULL,1,1,1},
+ {"zadd",zaddCommand,4,REDIS_CMD_DENYOOM,NULL,1,1,1},
+ {"zincrby",zincrbyCommand,4,REDIS_CMD_DENYOOM,NULL,1,1,1},
+ {"zrem",zremCommand,3,0,NULL,1,1,1},
+ {"zremrangebyscore",zremrangebyscoreCommand,4,0,NULL,1,1,1},
+ {"zremrangebyrank",zremrangebyrankCommand,4,0,NULL,1,1,1},
+ {"zunionstore",zunionstoreCommand,-4,REDIS_CMD_DENYOOM,zunionInterBlockClientOnSwappedKeys,0,0,0},
+ {"zinterstore",zinterstoreCommand,-4,REDIS_CMD_DENYOOM,zunionInterBlockClientOnSwappedKeys,0,0,0},
+ {"zrange",zrangeCommand,-4,0,NULL,1,1,1},
+ {"zrangebyscore",zrangebyscoreCommand,-4,0,NULL,1,1,1},
+ {"zcount",zcountCommand,4,0,NULL,1,1,1},
+ {"zrevrange",zrevrangeCommand,-4,0,NULL,1,1,1},
+ {"zcard",zcardCommand,2,0,NULL,1,1,1},
+ {"zscore",zscoreCommand,3,REDIS_CMD_DENYOOM,NULL,1,1,1},
+ {"zrank",zrankCommand,3,0,NULL,1,1,1},
+ {"zrevrank",zrevrankCommand,3,0,NULL,1,1,1},
+ {"hset",hsetCommand,4,REDIS_CMD_DENYOOM,NULL,1,1,1},
+ {"hsetnx",hsetnxCommand,4,REDIS_CMD_DENYOOM,NULL,1,1,1},
+ {"hget",hgetCommand,3,0,NULL,1,1,1},
+ {"hmset",hmsetCommand,-4,REDIS_CMD_DENYOOM,NULL,1,1,1},
+ {"hmget",hmgetCommand,-3,0,NULL,1,1,1},
+ {"hincrby",hincrbyCommand,4,REDIS_CMD_DENYOOM,NULL,1,1,1},
+ {"hdel",hdelCommand,3,0,NULL,1,1,1},
+ {"hlen",hlenCommand,2,0,NULL,1,1,1},
+ {"hkeys",hkeysCommand,2,0,NULL,1,1,1},
+ {"hvals",hvalsCommand,2,0,NULL,1,1,1},
+ {"hgetall",hgetallCommand,2,0,NULL,1,1,1},
+ {"hexists",hexistsCommand,3,0,NULL,1,1,1},
+ {"incrby",incrbyCommand,3,REDIS_CMD_DENYOOM,NULL,1,1,1},
+ {"decrby",decrbyCommand,3,REDIS_CMD_DENYOOM,NULL,1,1,1},
+ {"getset",getsetCommand,3,REDIS_CMD_DENYOOM,NULL,1,1,1},
+ {"mset",msetCommand,-3,REDIS_CMD_DENYOOM,NULL,1,-1,2},
+ {"msetnx",msetnxCommand,-3,REDIS_CMD_DENYOOM,NULL,1,-1,2},
+ {"randomkey",randomkeyCommand,1,0,NULL,0,0,0},
+ {"select",selectCommand,2,0,NULL,0,0,0},
+ {"move",moveCommand,3,0,NULL,1,1,1},
+ {"rename",renameCommand,3,0,NULL,1,1,1},
+ {"renamenx",renamenxCommand,3,0,NULL,1,1,1},
+ {"expire",expireCommand,3,0,NULL,0,0,0},
+ {"expireat",expireatCommand,3,0,NULL,0,0,0},
+ {"keys",keysCommand,2,0,NULL,0,0,0},
+ {"dbsize",dbsizeCommand,1,0,NULL,0,0,0},
+ {"auth",authCommand,2,0,NULL,0,0,0},
+ {"ping",pingCommand,1,0,NULL,0,0,0},
+ {"echo",echoCommand,2,0,NULL,0,0,0},
+ {"save",saveCommand,1,0,NULL,0,0,0},
+ {"bgsave",bgsaveCommand,1,0,NULL,0,0,0},
+ {"bgrewriteaof",bgrewriteaofCommand,1,0,NULL,0,0,0},
+ {"shutdown",shutdownCommand,1,0,NULL,0,0,0},
+ {"lastsave",lastsaveCommand,1,0,NULL,0,0,0},
+ {"type",typeCommand,2,0,NULL,1,1,1},
+ {"multi",multiCommand,1,0,NULL,0,0,0},
+ {"exec",execCommand,1,REDIS_CMD_DENYOOM,execBlockClientOnSwappedKeys,0,0,0},
+ {"discard",discardCommand,1,0,NULL,0,0,0},
+ {"sync",syncCommand,1,0,NULL,0,0,0},
+ {"flushdb",flushdbCommand,1,0,NULL,0,0,0},
+ {"flushall",flushallCommand,1,0,NULL,0,0,0},
+ {"sort",sortCommand,-2,REDIS_CMD_DENYOOM,NULL,1,1,1},
+ {"info",infoCommand,1,0,NULL,0,0,0},
+ {"monitor",monitorCommand,1,0,NULL,0,0,0},
+ {"ttl",ttlCommand,2,0,NULL,1,1,1},
+ {"persist",persistCommand,2,0,NULL,1,1,1},
+ {"slaveof",slaveofCommand,3,0,NULL,0,0,0},
+ {"debug",debugCommand,-2,0,NULL,0,0,0},
+ {"config",configCommand,-2,0,NULL,0,0,0},
+ {"subscribe",subscribeCommand,-2,0,NULL,0,0,0},
+ {"unsubscribe",unsubscribeCommand,-1,0,NULL,0,0,0},
+ {"psubscribe",psubscribeCommand,-2,0,NULL,0,0,0},
+ {"punsubscribe",punsubscribeCommand,-1,0,NULL,0,0,0},
+ {"publish",publishCommand,3,REDIS_CMD_FORCE_REPLICATION,NULL,0,0,0},
+ {"watch",watchCommand,-2,0,NULL,0,0,0},
+ {"unwatch",unwatchCommand,1,0,NULL,0,0,0}
};
/*============================ Utility functions ============================ */
NULL, /* val dup */
dictEncObjKeyCompare, /* key compare */
dictRedisObjectDestructor, /* key destructor */
- dictVanillaFree /* val destructor of malloc(sizeof(double)) */
+ NULL /* val destructor */
};
/* Db->dict, keys are sds strings, vals are Redis objects. */
int processCommand(redisClient *c) {
struct redisCommand *cmd;
- /* Free some memory if needed (maxmemory setting) */
- if (server.maxmemory) freeMemoryIfNeeded();
-
- /* Handle the multi bulk command type. This is an alternative protocol
- * supported by Redis in order to receive commands that are composed of
- * multiple binary-safe "bulk" arguments. The latency of processing is
- * a bit higher but this allows things like multi-sets, so if this
- * protocol is used only for MSET and similar commands this is a big win. */
- if (c->multibulk == 0 && c->argc == 1 && ((char*)(c->argv[0]->ptr))[0] == '*') {
- c->multibulk = atoi(((char*)c->argv[0]->ptr)+1);
- if (c->multibulk <= 0) {
- resetClient(c);
- return 1;
- } else {
- decrRefCount(c->argv[c->argc-1]);
- c->argc--;
- return 1;
- }
- } else if (c->multibulk) {
- if (c->bulklen == -1) {
- if (((char*)c->argv[0]->ptr)[0] != '$') {
- addReplyError(c,"multi bulk protocol error");
- resetClient(c);
- return 1;
- } else {
- char *eptr;
- long bulklen = strtol(((char*)c->argv[0]->ptr)+1,&eptr,10);
- int perr = eptr[0] != '\0';
-
- decrRefCount(c->argv[0]);
- if (perr || bulklen == LONG_MIN || bulklen == LONG_MAX ||
- bulklen < 0 || bulklen > 1024*1024*1024)
- {
- c->argc--;
- addReplyError(c,"invalid bulk write count");
- resetClient(c);
- return 1;
- }
- c->argc--;
- c->bulklen = bulklen+2; /* add two bytes for CR+LF */
- return 1;
- }
- } else {
- c->mbargv = zrealloc(c->mbargv,(sizeof(robj*))*(c->mbargc+1));
- c->mbargv[c->mbargc] = c->argv[0];
- c->mbargc++;
- c->argc--;
- c->multibulk--;
- if (c->multibulk == 0) {
- robj **auxargv;
- int auxargc;
-
- /* Here we need to swap the multi-bulk argc/argv with the
- * normal argc/argv of the client structure. */
- auxargv = c->argv;
- c->argv = c->mbargv;
- c->mbargv = auxargv;
-
- auxargc = c->argc;
- c->argc = c->mbargc;
- c->mbargc = auxargc;
-
- /* We need to set bulklen to something different than -1
- * in order for the code below to process the command without
- * to try to read the last argument of a bulk command as
- * a special argument. */
- c->bulklen = 0;
- /* continue below and process the command */
- } else {
- c->bulklen = -1;
- return 1;
- }
- }
- }
- /* -- end of multi bulk commands processing -- */
-
- /* The QUIT command is handled as a special case. Normal command
- * procs are unable to close the client connection safely */
+ /* 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
+ * a regular command proc. */
+ redisAssert(!(c->flags & REDIS_QUIT));
if (!strcasecmp(c->argv[0]->ptr,"quit")) {
- freeClient(c);
- return 0;
+ c->flags |= REDIS_QUIT;
+ addReply(c,shared.ok);
+ return REDIS_ERR;
}
/* Now lookup the command and check ASAP about trivial error conditions
if (!cmd) {
addReplyErrorFormat(c,"unknown command '%s'",
(char*)c->argv[0]->ptr);
- resetClient(c);
- return 1;
+ return REDIS_OK;
} else if ((cmd->arity > 0 && cmd->arity != c->argc) ||
(c->argc < -cmd->arity)) {
addReplyErrorFormat(c,"wrong number of arguments for '%s' command",
cmd->name);
- resetClient(c);
- return 1;
- } else if (cmd->flags & REDIS_CMD_BULK && c->bulklen == -1) {
- /* This is a bulk command, we have to read the last argument yet. */
- char *eptr;
- long bulklen = strtol(c->argv[c->argc-1]->ptr,&eptr,10);
- int perr = eptr[0] != '\0';
-
- decrRefCount(c->argv[c->argc-1]);
- if (perr || bulklen == LONG_MAX || bulklen == LONG_MIN ||
- bulklen < 0 || bulklen > 1024*1024*1024)
- {
- c->argc--;
- addReplyError(c,"invalid bulk write count");
- resetClient(c);
- return 1;
- }
- c->argc--;
- c->bulklen = bulklen+2; /* add two bytes for CR+LF */
- /* It is possible that the bulk read is already in the
- * buffer. Check this condition and handle it accordingly.
- * This is just a fast path, alternative to call processInputBuffer().
- * It's a good idea since the code is small and this condition
- * happens most of the times. */
- if ((signed)sdslen(c->querybuf) >= c->bulklen) {
- c->argv[c->argc] = createStringObject(c->querybuf,c->bulklen-2);
- c->argc++;
- c->querybuf = sdsrange(c->querybuf,c->bulklen,-1);
- } else {
- /* Otherwise return... there is to read the last argument
- * from the socket. */
- return 1;
- }
+ return REDIS_OK;
}
- /* Let's try to encode the bulk object to save space. */
- if (cmd->flags & REDIS_CMD_BULK)
- c->argv[c->argc-1] = tryObjectEncoding(c->argv[c->argc-1]);
/* Check if the user is authenticated */
if (server.requirepass && !c->authenticated && cmd->proc != authCommand) {
addReplyError(c,"operation not permitted");
- resetClient(c);
- return 1;
+ return REDIS_OK;
}
- /* Handle the maxmemory directive */
+ /* Handle the maxmemory directive.
+ *
+ * First we try to free some memory if possible (if there are volatile
+ * 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) &&
zmalloc_used_memory() > server.maxmemory)
{
addReplyError(c,"command not allowed when used memory > 'maxmemory'");
- resetClient(c);
- return 1;
+ return REDIS_OK;
}
/* Only allow SUBSCRIBE and UNSUBSCRIBE in the context of Pub/Sub */
cmd->proc != subscribeCommand && cmd->proc != unsubscribeCommand &&
cmd->proc != psubscribeCommand && cmd->proc != punsubscribeCommand) {
addReplyError(c,"only (P)SUBSCRIBE / (P)UNSUBSCRIBE / QUIT allowed in this context");
- resetClient(c);
- return 1;
+ return REDIS_OK;
}
/* Exec the command */
addReply(c,shared.queued);
} else {
if (server.vm_enabled && server.vm_max_threads > 0 &&
- blockClientOnSwappedKeys(c,cmd)) return 1;
+ blockClientOnSwappedKeys(c,cmd)) return REDIS_ERR;
call(c,cmd);
}
-
- /* Prepare the client for the next command */
- resetClient(c);
- return 1;
+ return REDIS_OK;
}
/*================================== Shutdown =============================== */
projects / redis.git / blobdiff