Optimize LRANGE to scan the list starting from the head or the tail in order to trave...

[redis.git] / src / redis.h

diff --git a/src/redis.h b/src/redis.h
index f249d2377a9aa53bd69b95d8ff6b46df6a5b74b7..768322c37f3067a8c18c65d7b40820754aad2acf 100644 (file)
--- a/src/redis.h
+++ b/src/redis.h
@@ -19,18 +19,19 @@
 #include <pthread.h>
 #include <syslog.h>
 #include <netinet/in.h>
 #include <pthread.h>
 #include <syslog.h>
 #include <netinet/in.h>

+#include <lua.h>

 
 

-#include "ae.h"     /* Event driven programming library */
-#include "sds.h"    /* Dynamic safe strings */
-#include "dict.h"   /* Hash tables */
-#include "adlist.h" /* Linked lists */
+#include "ae.h"      /* Event driven programming library */
+#include "sds.h"     /* Dynamic safe strings */
+#include "dict.h"    /* Hash tables */
+#include "adlist.h"  /* Linked lists */

 #include "zmalloc.h" /* total memory usage aware version of malloc/free */
 #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 "anet.h"    /* Networking the easy way */
+#include "zipmap.h"  /* Compact string -> string data structure */

 #include "ziplist.h" /* Compact list data structure */
 #include "ziplist.h" /* Compact list data structure */

-#include "intset.h" /* Compact integer set structure */
-#include "version.h"
-#include "util.h"
+#include "intset.h"  /* Compact integer set structure */
+#include "version.h" /* Version macro */
+#include "util.h"    /* Misc functions useful in many places */

 
 /* Error codes */
 #define REDIS_OK                0
 
 /* Error codes */
 #define REDIS_OK                0


@@ -41,7 +42,6 @@
 #define REDIS_MAXIDLETIME       (60*5)  /* default client timeout */
 #define REDIS_IOBUF_LEN         1024
 #define REDIS_LOADBUF_LEN       1024
 #define REDIS_MAXIDLETIME       (60*5)  /* default client timeout */
 #define REDIS_IOBUF_LEN         1024
 #define REDIS_LOADBUF_LEN       1024

-#define REDIS_STATIC_ARGS       8

 #define REDIS_DEFAULT_DBNUM     16
 #define REDIS_CONFIGLINE_MAX    1024
 #define REDIS_MAX_SYNC_TIME     60      /* Slave can't take more to sync */
 #define REDIS_DEFAULT_DBNUM     16
 #define REDIS_CONFIGLINE_MAX    1024
 #define REDIS_MAX_SYNC_TIME     60      /* Slave can't take more to sync */


@@ -51,6 +51,10 @@
 #define REDIS_SHARED_INTEGERS 10000
 #define REDIS_REPLY_CHUNK_BYTES (5*1500) /* 5 TCP packets with default MTU */
 #define REDIS_MAX_LOGMSG_LEN    1024 /* Default maximum length of syslog messages */
 #define REDIS_SHARED_INTEGERS 10000
 #define REDIS_REPLY_CHUNK_BYTES (5*1500) /* 5 TCP packets with default MTU */
 #define REDIS_MAX_LOGMSG_LEN    1024 /* Default maximum length of syslog messages */

+#define REDIS_AUTO_AOFREWRITE_PERC  100
+#define REDIS_AUTO_AOFREWRITE_MIN_SIZE (1024*1024)
+#define REDIS_SLOWLOG_LOG_SLOWER_THAN 10000
+#define REDIS_SLOWLOG_MAX_LEN 64

 
 /* Hash table parameters */
 #define REDIS_HT_MINFILL        10      /* Minimal hash table fill 10% */
 
 /* Hash table parameters */
 #define REDIS_HT_MINFILL        10      /* Minimal hash table fill 10% */


@@ -123,30 +127,17 @@
 #define REDIS_RDB_ENC_INT32 2       /* 32 bit signed integer */
 #define REDIS_RDB_ENC_LZF 3         /* string compressed with FASTLZ */
 
 #define REDIS_RDB_ENC_INT32 2       /* 32 bit signed integer */
 #define REDIS_RDB_ENC_LZF 3         /* string compressed with FASTLZ */
 

-/* Scheduled IO opeations flags. */
-#define REDIS_IO_LOAD 1
-#define REDIS_IO_SAVE 2
-#define REDIS_IO_LOADINPROG 4
-#define REDIS_IO_SAVEINPROG 8
-
-/* Generic IO flags */
-#define REDIS_IO_ONLYLOADS 1
-#define REDIS_IO_ASAP 2
-
-#define REDIS_MAX_COMPLETED_JOBS_PROCESSED 1
-#define REDIS_THREAD_STACK_SIZE (1024*1024*4)
-

 /* Client flags */
 #define REDIS_SLAVE 1       /* This client is a slave server */
 #define REDIS_MASTER 2      /* This client is a master server */
 #define REDIS_MONITOR 4     /* This client is a slave monitor, see MONITOR */
 #define REDIS_MULTI 8       /* This client is in a MULTI context */
 #define REDIS_BLOCKED 16    /* The client is waiting in a blocking operation */
 /* Client flags */
 #define REDIS_SLAVE 1       /* This client is a slave server */
 #define REDIS_MASTER 2      /* This client is a master server */
 #define REDIS_MONITOR 4     /* This client is a slave monitor, see MONITOR */
 #define REDIS_MULTI 8       /* This client is in a MULTI context */
 #define REDIS_BLOCKED 16    /* The client is waiting in a blocking operation */

-#define REDIS_IO_WAIT 32    /* The client is waiting for Virtual Memory I/O */

 #define REDIS_DIRTY_CAS 64  /* Watched keys modified. EXEC will fail. */
 #define REDIS_CLOSE_AFTER_REPLY 128 /* Close after writing entire reply. */
 #define REDIS_UNBLOCKED 256 /* This client was unblocked and is stored in
                                server.unblocked_clients */
 #define REDIS_DIRTY_CAS 64  /* Watched keys modified. EXEC will fail. */
 #define REDIS_CLOSE_AFTER_REPLY 128 /* Close after writing entire reply. */
 #define REDIS_UNBLOCKED 256 /* This client was unblocked and is stored in
                                server.unblocked_clients */

+#define REDIS_LUA_CLIENT 512 /* This is a non connected client used by Lua */

 
 /* Client request types */
 #define REDIS_REQ_INLINE 1
 
 /* Client request types */
 #define REDIS_REQ_INLINE 1


@@ -221,11 +212,8 @@
 #define REDIS_MAXMEMORY_ALLKEYS_RANDOM 4
 #define REDIS_MAXMEMORY_NO_EVICTION 5
 
 #define REDIS_MAXMEMORY_ALLKEYS_RANDOM 4
 #define REDIS_MAXMEMORY_NO_EVICTION 5
 

-/* Diskstore background saving thread states */
-#define REDIS_BGSAVE_THREAD_UNACTIVE 0
-#define REDIS_BGSAVE_THREAD_ACTIVE 1
-#define REDIS_BGSAVE_THREAD_DONE_OK 2
-#define REDIS_BGSAVE_THREAD_DONE_ERR 3
+/* Scripting */
+#define REDIS_LUA_TIME_LIMIT 60000 /* milliseconds */

 
 /* We can print the stacktrace, so our assert is defined this way: */
 #define redisAssert(_e) ((_e)?(void)0 : (_redisAssert(#_e,__FILE__,__LINE__),_exit(1)))
 
 /* We can print the stacktrace, so our assert is defined this way: */
 #define redisAssert(_e) ((_e)?(void)0 : (_redisAssert(#_e,__FILE__,__LINE__),_exit(1)))


@@ -291,9 +279,6 @@ typedef struct redisDb {
     dict *dict;                 /* The keyspace for this DB */
     dict *expires;              /* Timeout of keys with a timeout set */
     dict *blocking_keys;        /* Keys with clients waiting for data (BLPOP) */
     dict *dict;                 /* The keyspace for this DB */
     dict *expires;              /* Timeout of keys with a timeout set */
     dict *blocking_keys;        /* Keys with clients waiting for data (BLPOP) */

-    dict *io_keys;              /* Keys with clients waiting for DS I/O */
-    dict *io_negcache;          /* Negative caching for disk store */
-    dict *io_queued;            /* Queued IO operations hash table */

     dict *watched_keys;         /* WATCHED keys for MULTI/EXEC CAS */
     int id;
 } redisDb;
     dict *watched_keys;         /* WATCHED keys for MULTI/EXEC CAS */
     int id;
 } redisDb;


@@ -329,6 +314,7 @@ typedef struct redisClient {
     sds querybuf;
     int argc;
     robj **argv;
     sds querybuf;
     int argc;
     robj **argv;

+    struct redisCommand *cmd;

     int reqtype;
     int multibulklen;       /* number of multi bulk arguments left to read */
     long bulklen;           /* length of bulk argument in multi bulk request */
     int reqtype;
     int multibulklen;       /* number of multi bulk arguments left to read */
     long bulklen;           /* length of bulk argument in multi bulk request */


@@ -364,7 +350,7 @@ struct sharedObjectsStruct {
     robj *crlf, *ok, *err, *emptybulk, *czero, *cone, *cnegone, *pong, *space,
     *colon, *nullbulk, *nullmultibulk, *queued,
     *emptymultibulk, *wrongtypeerr, *nokeyerr, *syntaxerr, *sameobjecterr,
     robj *crlf, *ok, *err, *emptybulk, *czero, *cone, *cnegone, *pong, *space,
     *colon, *nullbulk, *nullmultibulk, *queued,
     *emptymultibulk, *wrongtypeerr, *nokeyerr, *syntaxerr, *sameobjecterr,

-    *outofrangeerr, *loadingerr, *plus,
+    *outofrangeerr, *noscripterr, *loadingerr, *plus,

     *select0, *select1, *select2, *select3, *select4,
     *select5, *select6, *select7, *select8, *select9,
     *messagebulk, *pmessagebulk, *subscribebulk, *unsubscribebulk, *mbulk3,
     *select0, *select1, *select2, *select3, *select4,
     *select5, *select6, *select7, *select8, *select9,
     *messagebulk, *pmessagebulk, *subscribebulk, *unsubscribebulk, *mbulk3,


@@ -515,7 +501,6 @@ typedef struct {
 
 struct redisServer {
     /* General */
 
 struct redisServer {
     /* General */

-    pthread_t mainthread;

     redisDb *db;
     dict *commands;             /* Command table hahs table */
     aeEventLoop *el;
     redisDb *db;
     dict *commands;             /* Command table hahs table */
     aeEventLoop *el;


@@ -547,6 +532,11 @@ struct redisServer {
     long long stat_keyspace_hits;   /* number of successful lookups of keys */
     long long stat_keyspace_misses; /* number of failed lookups of keys */
     size_t stat_peak_memory;        /* max used memory record */
     long long stat_keyspace_hits;   /* number of successful lookups of keys */
     long long stat_keyspace_misses; /* number of failed lookups of keys */
     size_t stat_peak_memory;        /* max used memory record */

+    long long stat_fork_time;       /* time needed to perform latets fork() */
+    list *slowlog;
+    long long slowlog_entry_id;
+    long long slowlog_log_slower_than;
+    unsigned long slowlog_max_len;

     /* Configuration */
     int verbosity;
     int maxidletime;
     /* Configuration */
     int verbosity;
     int maxidletime;


@@ -555,6 +545,11 @@ struct redisServer {
     int appendonly;
     int appendfsync;
     int no_appendfsync_on_rewrite;
     int appendonly;
     int appendfsync;
     int no_appendfsync_on_rewrite;

+    int auto_aofrewrite_perc;       /* Rewrite AOF if % growth is > M and... */
+    off_t auto_aofrewrite_min_size; /* the AOF file is at least N bytes. */
+    off_t auto_aofrewrite_base_size;/* AOF size on latest startup or rewrite. */
+    off_t appendonly_current_size;  /* AOF current size. */
+    int aofrewrite_scheduled;       /* Rewrite once BGSAVE terminates. */

     int shutdown_asap;
     int activerehashing;
     char *requirepass;
     int shutdown_asap;
     int activerehashing;
     char *requirepass;


@@ -567,9 +562,6 @@ struct redisServer {
     char *pidfile;
     pid_t bgsavechildpid;
     pid_t bgrewritechildpid;
     char *pidfile;
     pid_t bgsavechildpid;
     pid_t bgrewritechildpid;

-    int bgsavethread_state;
-    pthread_mutex_t bgsavethread_mutex;
-    pthread_t bgsavethread;

     sds bgrewritebuf; /* buffer taken by parent during oppend only rewrite */
     sds aofbuf;       /* AOF buffer, written before entering the event loop */
     struct saveparam *saveparams;
     sds bgrewritebuf; /* buffer taken by parent during oppend only rewrite */
     sds aofbuf;       /* AOF buffer, written before entering the event loop */
     struct saveparam *saveparams;


@@ -597,6 +589,7 @@ 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? */
     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? */

+    time_t repl_down_since; /* unix time at which link with master went down */

     /* Limits */
     unsigned int maxclients;
     unsigned long long maxmemory;
     /* Limits */
     unsigned int maxclients;
     unsigned long long maxmemory;


@@ -604,19 +597,12 @@ struct redisServer {
     int maxmemory_samples;
     /* Blocked clients */
     unsigned int bpop_blocked_clients;
     int maxmemory_samples;
     /* Blocked clients */
     unsigned int bpop_blocked_clients;

-    unsigned int cache_blocked_clients;

     list *unblocked_clients; /* list of clients to unblock before next loop */
     list *unblocked_clients; /* list of clients to unblock before next loop */

-    list *cache_io_queue;    /* IO operations queue */
-    int cache_flush_delay;   /* seconds to wait before flushing keys */

     /* Sort parameters - qsort_r() is only available under BSD so we
      * have to take this state global, in order to pass it to sortCompare() */
     int sort_desc;
     int sort_alpha;
     int sort_bypattern;
     /* Sort parameters - qsort_r() is only available under BSD so we
      * have to take this state global, in order to pass it to sortCompare() */
     int sort_desc;
     int sort_alpha;
     int sort_bypattern;

-    /* Virtual memory configuration */
-    int ds_enabled; /* backend disk in redis.conf */
-    char *ds_path;  /* location of the disk store on disk */
-    unsigned long long cache_max_memory;

     /* Zip structure config */
     size_t hash_max_zipmap_entries;
     size_t hash_max_zipmap_value;
     /* Zip structure config */
     size_t hash_max_zipmap_entries;
     size_t hash_max_zipmap_value;


@@ -626,30 +612,6 @@ struct redisServer {
     size_t zset_max_ziplist_entries;
     size_t zset_max_ziplist_value;
     time_t unixtime;    /* Unix time sampled every second. */
     size_t zset_max_ziplist_entries;
     size_t zset_max_ziplist_value;
     time_t unixtime;    /* Unix time sampled every second. */

-    /* Virtual memory I/O threads stuff */
-    /* An I/O thread process an element taken from the io_jobs queue and
-     * put the result of the operation in the io_done list. While the
-     * job is being processed, it's put on io_processing queue. */
-    list *io_newjobs; /* List of VM I/O jobs yet to be processed */
-    list *io_processing; /* List of VM I/O jobs being processed */
-    list *io_processed; /* List of VM I/O jobs already processed */
-    list *io_ready_clients; /* Clients ready to be unblocked. All keys loaded */
-    pthread_mutex_t io_mutex; /* lock to access io_jobs/io_done/io_thread_job */
-    pthread_cond_t io_condvar; /* I/O threads conditional variable */
-    pthread_attr_t io_threads_attr; /* attributes for threads creation */
-    int io_active_threads; /* Number of running I/O threads */
-    int vm_max_threads; /* Max number of I/O threads running at the same time */
-    /* Our main thread is blocked on the event loop, locking for sockets ready
-     * to be read or written, so when a threaded I/O operation is ready to be
-     * processed by the main thread, the I/O thread will use a unix pipe to
-     * awake the main thread. The followings are the two pipe FDs. */
-    int io_ready_pipe_read;
-    int io_ready_pipe_write;
-    /* Virtual memory stats */
-    unsigned long long vm_stats_used_pages;
-    unsigned long long vm_stats_swapped_objects;
-    unsigned long long vm_stats_swapouts;
-    unsigned long long vm_stats_swapins;

     /* Pubsub */
     dict *pubsub_channels; /* Map channels to list of subscribed clients */
     list *pubsub_patterns; /* A list of pubsub_patterns */
     /* Pubsub */
     dict *pubsub_channels; /* Map channels to list of subscribed clients */
     list *pubsub_patterns; /* A list of pubsub_patterns */


@@ -659,6 +621,12 @@ struct redisServer {
     /* Cluster */
     int cluster_enabled;
     clusterState cluster;
     /* Cluster */
     int cluster_enabled;
     clusterState 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 */
+    dict *lua_scripts; /* A dictionary of SHA1 -> Lua scripts */
+    long long lua_time_limit;
+    long long lua_time_start;

 };
 
 typedef struct pubsubPattern {
 };
 
 typedef struct pubsubPattern {


@@ -674,7 +642,7 @@ struct redisCommand {
     int arity;
     int flags;
     /* Use a function to determine keys arguments in a command line.
     int arity;
     int flags;
     /* Use a function to determine keys arguments in a command line.

-     * Used both for diskstore preloading and Redis Cluster. */
+     * Used for Redis Cluster redirect. */

     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) */
     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) */


@@ -701,27 +669,6 @@ typedef struct _redisSortOperation {
     robj *pattern;
 } redisSortOperation;
 
     robj *pattern;
 } redisSortOperation;
 

-/* DIsk store threaded I/O request message */
-#define REDIS_IOJOB_LOAD 0
-#define REDIS_IOJOB_SAVE 1
-
-typedef struct iojob {
-    int type;   /* Request type, REDIS_IOJOB_* */
-    redisDb *db;/* Redis database */
-    robj *key;  /* This I/O request is about this key */
-    robj *val;  /* the value to swap for REDIS_IOJOB_SAVE, otherwise this
-                 * field is populated by the I/O thread for REDIS_IOJOB_LOAD. */
-    time_t expire; /* Expire time for this key on REDIS_IOJOB_LOAD */
-} iojob;
-
-/* IO operations scheduled -- check dscache.c for more info */
-typedef struct ioop {
-    int type;
-    redisDb *db;
-    robj *key;
-    time_t ctime; /* This is the creation time of the entry. */
-} ioop;
-

 /* Structure to hold list iteration abstraction. */
 typedef struct {
     robj *subject;
 /* Structure to hold list iteration abstraction. */
 typedef struct {
     robj *subject;


@@ -772,6 +719,7 @@ extern struct sharedObjectsStruct shared;
 extern dictType setDictType;
 extern dictType zsetDictType;
 extern dictType clusterNodesDictType;
 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 double R_Zero, R_PosInf, R_NegInf, R_Nan;
 dictType hashDictType;
 


@@ -811,6 +759,8 @@ void addReplyMultiBulkLen(redisClient *c, long length);
 void *dupClientReplyValue(void *o);
 void getClientsMaxBuffers(unsigned long *longest_output_list,
                           unsigned long *biggest_input_buffer);
 void *dupClientReplyValue(void *o);
 void getClientsMaxBuffers(unsigned long *longest_output_list,
                           unsigned long *biggest_input_buffer);

+void rewriteClientCommandVector(redisClient *c, int argc, ...);
+void rewriteClientCommandArgument(redisClient *c, int i, robj *newval);

 
 #ifdef __GNUC__
 void addReplyErrorFormat(redisClient *c, const char *fmt, ...)
 
 #ifdef __GNUC__
 void addReplyErrorFormat(redisClient *c, const char *fmt, ...)


@@ -843,13 +793,14 @@ void popGenericCommand(redisClient *c, int where);
 void unwatchAllKeys(redisClient *c);
 void initClientMultiState(redisClient *c);
 void freeClientMultiState(redisClient *c);
 void unwatchAllKeys(redisClient *c);
 void initClientMultiState(redisClient *c);
 void freeClientMultiState(redisClient *c);

-void queueMultiCommand(redisClient *c, struct redisCommand *cmd);
+void queueMultiCommand(redisClient *c);

 void touchWatchedKey(redisDb *db, robj *key);
 void touchWatchedKeysOnFlush(int dbid);
 
 /* Redis object implementation */
 void decrRefCount(void *o);
 void incrRefCount(robj *o);
 void touchWatchedKey(redisDb *db, robj *key);
 void touchWatchedKeysOnFlush(int dbid);
 
 /* Redis object implementation */
 void decrRefCount(void *o);
 void incrRefCount(robj *o);

+robj *resetRefCount(robj *obj);

 void freeStringObject(robj *o);
 void freeListObject(robj *o);
 void freeSetObject(robj *o);
 void freeStringObject(robj *o);
 void freeListObject(robj *o);
 void freeSetObject(robj *o);


@@ -954,9 +905,10 @@ int processCommand(redisClient *c);
 void setupSignalHandlers(void);
 struct redisCommand *lookupCommand(sds name);
 struct redisCommand *lookupCommandByCString(char *s);
 void setupSignalHandlers(void);
 struct redisCommand *lookupCommand(sds name);
 struct redisCommand *lookupCommandByCString(char *s);

-void call(redisClient *c, struct redisCommand *cmd);
+void call(redisClient *c);

 int prepareForShutdown();
 void redisLog(int level, const char *fmt, ...);
 int prepareForShutdown();
 void redisLog(int level, const char *fmt, ...);

+void redisLogRaw(int level, const char *msg);

 void usage();
 void updateDictResizePolicy(void);
 int htNeedsResize(dict *dict);
 void usage();
 void updateDictResizePolicy(void);
 int htNeedsResize(dict *dict);


@@ -964,40 +916,6 @@ void oom(const char *msg);
 void populateCommandTable(void);
 void resetCommandTableStats(void);
 
 void populateCommandTable(void);
 void resetCommandTableStats(void);
 

-/* Disk store */
-int dsOpen(void);
-int dsClose(void);
-int dsSet(redisDb *db, robj *key, robj *val, time_t expire);
-robj *dsGet(redisDb *db, robj *key, time_t *expire);
-int dsDel(redisDb *db, robj *key);
-int dsExists(redisDb *db, robj *key);
-void dsFlushDb(int dbid);
-int dsRdbSaveBackground(char *filename);
-int dsRdbSave(char *filename);
-
-/* Disk Store Cache */
-void dsInit(void);
-void vmThreadedIOCompletedJob(aeEventLoop *el, int fd, void *privdata, int mask);
-void lockThreadedIO(void);
-void unlockThreadedIO(void);
-void freeIOJob(iojob *j);
-void queueIOJob(iojob *j);
-void waitEmptyIOJobsQueue(void);
-void processAllPendingIOJobs(void);
-int blockClientOnSwappedKeys(redisClient *c, struct redisCommand *cmd);
-int dontWaitForSwappedKey(redisClient *c, robj *key);
-void handleClientsBlockedOnSwappedKey(redisDb *db, robj *key);
-int cacheFreeOneEntry(void);
-void cacheScheduleIOAddFlag(redisDb *db, robj *key, long flag);
-void cacheScheduleIODelFlag(redisDb *db, robj *key, long flag);
-int cacheScheduleIOGetFlags(redisDb *db, robj *key);
-void cacheScheduleIO(redisDb *db, robj *key, int type);
-void cacheCron(void);
-int cacheKeyMayExist(redisDb *db, robj *key);
-void cacheSetKeyMayExist(redisDb *db, robj *key);
-void cacheSetKeyDoesNotExist(redisDb *db, robj *key);
-void cacheForcePointInTime(void);
-

 /* Set data type */
 robj *setTypeCreate(robj *value);
 int setTypeAdd(robj *subject, robj *value);
 /* Set data type */
 robj *setTypeCreate(robj *value);
 int setTypeAdd(robj *subject, robj *value);


@@ -1050,8 +968,9 @@ robj *lookupKeyRead(redisDb *db, robj *key);
 robj *lookupKeyWrite(redisDb *db, robj *key);
 robj *lookupKeyReadOrReply(redisClient *c, robj *key, robj *reply);
 robj *lookupKeyWriteOrReply(redisClient *c, robj *key, robj *reply);
 robj *lookupKeyWrite(redisDb *db, robj *key);
 robj *lookupKeyReadOrReply(redisClient *c, robj *key, robj *reply);
 robj *lookupKeyWriteOrReply(redisClient *c, robj *key, robj *reply);

-int dbAdd(redisDb *db, robj *key, robj *val);
-int dbReplace(redisDb *db, robj *key, robj *val);
+void dbAdd(redisDb *db, robj *key, robj *val);
+void dbOverwrite(redisDb *db, robj *key, robj *val);
+void setKey(redisDb *db, robj *key, robj *val);

 int dbExists(redisDb *db, robj *key);
 robj *dbRandomKey(redisDb *db);
 int dbDelete(redisDb *db, robj *key);
 int dbExists(redisDb *db, robj *key);
 robj *dbRandomKey(redisDb *db);
 int dbDelete(redisDb *db, robj *key);


@@ -1079,6 +998,9 @@ int clusterAddNode(clusterNode *node);
 void clusterCron(void);
 clusterNode *getNodeByQuery(redisClient *c, struct redisCommand *cmd, robj **argv, int argc, int *hashslot, int *ask);
 
 void clusterCron(void);
 clusterNode *getNodeByQuery(redisClient *c, struct redisCommand *cmd, robj **argv, int argc, int *hashslot, int *ask);
 

+/* Scripting */
+void scriptingInit(void);
+

 /* Git SHA1 */
 char *redisGitSHA1(void);
 char *redisGitDirty(void);
 /* Git SHA1 */
 char *redisGitSHA1(void);
 char *redisGitDirty(void);


@@ -1207,6 +1129,8 @@ void migrateCommand(redisClient *c);
 void dumpCommand(redisClient *c);
 void objectCommand(redisClient *c);
 void clientCommand(redisClient *c);
 void dumpCommand(redisClient *c);
 void objectCommand(redisClient *c);
 void clientCommand(redisClient *c);

+void evalCommand(redisClient *c);
+void evalShaCommand(redisClient *c);

 
 #if defined(__GNUC__)
 void *calloc(size_t count, size_t size) __attribute__ ((deprecated));
 
 #if defined(__GNUC__)
 void *calloc(size_t count, size_t size) __attribute__ ((deprecated));