Updated to unstable

[redis.git] / src / redis.h

diff --git a/src/redis.h b/src/redis.h
index 91a64ecfddc049eddd2473b7c370ca2ce11fd3c7..fec7355b5d02bea07a3087d1be4a04b0cd8e9b21 100644 (file)
--- a/src/redis.h
+++ b/src/redis.h
@@ -19,6 +19,7 @@
 #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 "ae.h"     /* Event driven programming library */
 #include "sds.h"    /* Dynamic safe strings */


@@ -30,6 +31,7 @@
 #include "ziplist.h" /* Compact list data structure */
 #include "intset.h" /* Compact integer set structure */
 #include "version.h"
 #include "ziplist.h" /* Compact list data structure */
 #include "intset.h" /* Compact integer set structure */
 #include "version.h"

+#include "util.h"

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


@@ -40,7 +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 */


@@ -50,6 +51,8 @@
 #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)

 
 /* 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% */


@@ -71,10 +74,12 @@
 #define REDIS_ZSET 3
 #define REDIS_HASH 4
 #define REDIS_VMPOINTER 8
 #define REDIS_ZSET 3
 #define REDIS_HASH 4
 #define REDIS_VMPOINTER 8

+

 /* Object types only used for persistence in .rdb files */
 #define REDIS_HASH_ZIPMAP 9
 #define REDIS_LIST_ZIPLIST 10
 #define REDIS_SET_INTSET 11
 /* Object types only used for persistence in .rdb files */
 #define REDIS_HASH_ZIPMAP 9
 #define REDIS_LIST_ZIPLIST 10
 #define REDIS_SET_INTSET 11

+#define REDIS_ZSET_ZIPLIST 12

 
 /* Objects encoding. Some kind of objects like Strings and Hashes can be
  * internally represented in multiple ways. The 'encoding' field of the object
 
 /* Objects encoding. Some kind of objects like Strings and Hashes can be
  * internally represented in multiple ways. The 'encoding' field of the object


@@ -86,6 +91,7 @@
 #define REDIS_ENCODING_LINKEDLIST 4 /* Encoded as regular linked list */
 #define REDIS_ENCODING_ZIPLIST 5 /* Encoded as ziplist */
 #define REDIS_ENCODING_INTSET 6  /* Encoded as intset */
 #define REDIS_ENCODING_LINKEDLIST 4 /* Encoded as regular linked list */
 #define REDIS_ENCODING_ZIPLIST 5 /* Encoded as ziplist */
 #define REDIS_ENCODING_INTSET 6  /* Encoded as intset */

+#define REDIS_ENCODING_SKIPLIST 7  /* Encoded as skiplist */

 
 /* Object types only used for dumping to disk */
 #define REDIS_EXPIRETIME 253
 
 /* Object types only used for dumping to disk */
 #define REDIS_EXPIRETIME 253


@@ -143,16 +149,21 @@
 #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_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
 #define REDIS_REQ_MULTIBULK 2
 
 /* Slave replication state - slave side */
 
 /* Client request types */
 #define REDIS_REQ_INLINE 1
 #define REDIS_REQ_MULTIBULK 2
 
 /* Slave replication state - slave side */

-#define REDIS_REPL_NONE 0   /* No active replication */
-#define REDIS_REPL_CONNECT 1    /* Must connect to master */
-#define REDIS_REPL_TRANSFER 2    /* Receiving .rdb from master */
-#define REDIS_REPL_CONNECTED 3  /* Connected to master */
+#define REDIS_REPL_NONE 0 /* No active replication */
+#define REDIS_REPL_CONNECT 1 /* Must connect to master */
+#define REDIS_REPL_CONNECTING 2 /* Connecting to master */
+#define REDIS_REPL_TRANSFER 3 /* Receiving .rdb from master */
+#define REDIS_REPL_CONNECTED 4 /* Connected to master */
+
+/* Synchronous read timeout - slave side */
+#define REDIS_REPL_SYNCIO_TIMEOUT 5

 
 /* Slave replication state - from the point of view of master
  * Note that in SEND_BULK and ONLINE state the slave receives new updates
 
 /* Slave replication state - from the point of view of master
  * Note that in SEND_BULK and ONLINE state the slave receives new updates


@@ -178,6 +189,7 @@
 #define REDIS_VERBOSE 1
 #define REDIS_NOTICE 2
 #define REDIS_WARNING 3
 #define REDIS_VERBOSE 1
 #define REDIS_NOTICE 2
 #define REDIS_WARNING 3

+#define REDIS_LOG_RAW (1<<10) /* Modifier to log without timestamp */

 
 /* Anti-warning macro... */
 #define REDIS_NOTUSED(V) ((void) V)
 
 /* Anti-warning macro... */
 #define REDIS_NOTUSED(V) ((void) V)


@@ -196,6 +208,8 @@
 #define REDIS_LIST_MAX_ZIPLIST_ENTRIES 512
 #define REDIS_LIST_MAX_ZIPLIST_VALUE 64
 #define REDIS_SET_MAX_INTSET_ENTRIES 512
 #define REDIS_LIST_MAX_ZIPLIST_ENTRIES 512
 #define REDIS_LIST_MAX_ZIPLIST_VALUE 64
 #define REDIS_SET_MAX_INTSET_ENTRIES 512

+#define REDIS_ZSET_MAX_ZIPLIST_ENTRIES 128
+#define REDIS_ZSET_MAX_ZIPLIST_VALUE 64

 
 /* Sets operations codes */
 #define REDIS_OP_UNION 0
 
 /* Sets operations codes */
 #define REDIS_OP_UNION 0


@@ -216,6 +230,9 @@
 #define REDIS_BGSAVE_THREAD_DONE_OK 2
 #define REDIS_BGSAVE_THREAD_DONE_ERR 3
 
 #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)))
 #define redisPanic(_e) _redisPanic(#_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)))
 #define redisPanic(_e) _redisPanic(#_e,__FILE__,__LINE__),_exit(1)


@@ -353,7 +370,7 @@ 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,


@@ -361,6 +378,28 @@ struct sharedObjectsStruct {
     *integers[REDIS_SHARED_INTEGERS];
 };
 
     *integers[REDIS_SHARED_INTEGERS];
 };
 

+/* ZSETs use a specialized version of Skiplists */
+typedef struct zskiplistNode {
+    robj *obj;
+    double score;
+    struct zskiplistNode *backward;
+    struct zskiplistLevel {
+        struct zskiplistNode *forward;
+        unsigned int span;
+    } level[];
+} zskiplistNode;
+
+typedef struct zskiplist {
+    struct zskiplistNode *header, *tail;
+    unsigned long length;
+    int level;
+} zskiplist;
+
+typedef struct zset {
+    dict *dict;
+    zskiplist *zsl;
+} zset;
+

 /*-----------------------------------------------------------------------------
  * Redis cluster data structures
  *----------------------------------------------------------------------------*/
 /*-----------------------------------------------------------------------------
  * Redis cluster data structures
  *----------------------------------------------------------------------------*/


@@ -419,6 +458,7 @@ typedef struct {
     clusterNode *migrating_slots_to[REDIS_CLUSTER_SLOTS];
     clusterNode *importing_slots_from[REDIS_CLUSTER_SLOTS];
     clusterNode *slots[REDIS_CLUSTER_SLOTS];
     clusterNode *migrating_slots_to[REDIS_CLUSTER_SLOTS];
     clusterNode *importing_slots_from[REDIS_CLUSTER_SLOTS];
     clusterNode *slots[REDIS_CLUSTER_SLOTS];

+    zskiplist *slots_to_keys;

 } clusterState;
 
 /* Redis cluster messages header */
 } clusterState;
 
 /* Redis cluster messages header */


@@ -512,6 +552,8 @@ struct redisServer {
     long long stat_evictedkeys;     /* number of evicted keys (maxmemory) */
     long long stat_keyspace_hits;   /* number of successful lookups of keys */
     long long stat_keyspace_misses; /* number of failed lookups of keys */
     long long stat_evictedkeys;     /* number of evicted keys (maxmemory) */
     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() */

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


@@ -520,6 +562,11 @@ 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;


@@ -554,6 +601,7 @@ struct redisServer {
     char *masterhost;
     int masterport;
     redisClient *master;    /* client that is master for this slave */
     char *masterhost;
     int masterport;
     redisClient *master;    /* client that is master for this slave */

+    int repl_syncio_timeout; /* timeout for synchronous I/O calls */

     int replstate;          /* replication status if the instance is a slave */
     off_t repl_transfer_left;  /* bytes left reading .rdb  */
     int repl_transfer_s;    /* slave -> master SYNC socket */
     int replstate;          /* replication status if the instance is a slave */
     off_t repl_transfer_left;  /* bytes left reading .rdb  */
     int repl_transfer_s;    /* slave -> master SYNC socket */


@@ -587,6 +635,8 @@ struct redisServer {
     size_t list_max_ziplist_entries;
     size_t list_max_ziplist_value;
     size_t set_max_intset_entries;
     size_t list_max_ziplist_entries;
     size_t list_max_ziplist_value;
     size_t set_max_intset_entries;

+    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
     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


@@ -618,8 +668,14 @@ struct redisServer {
     /* Misc */
     unsigned lruclock:22;        /* clock incrementing every minute, for LRU */
     unsigned lruclock_padding:10;
     /* Misc */
     unsigned lruclock:22;        /* clock incrementing every minute, for LRU */
     unsigned lruclock_padding:10;

+    /* Cluster */

     int cluster_enabled;
     clusterState cluster;
     int cluster_enabled;
     clusterState cluster;

+    /* Scripting */
+    lua_State *lua;
+    redisClient *lua_client;
+    long long lua_time_limit;
+    long long lua_time_start;

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


@@ -662,28 +718,6 @@ typedef struct _redisSortOperation {
     robj *pattern;
 } redisSortOperation;
 
     robj *pattern;
 } redisSortOperation;
 

-/* ZSETs use a specialized version of Skiplists */
-typedef struct zskiplistNode {
-    robj *obj;
-    double score;
-    struct zskiplistNode *backward;
-    struct zskiplistLevel {
-        struct zskiplistNode *forward;
-        unsigned int span;
-    } level[];
-} zskiplistNode;
-
-typedef struct zskiplist {
-    struct zskiplistNode *header, *tail;
-    unsigned long length;
-    int level;
-} zskiplist;
-
-typedef struct zset {
-    dict *dict;
-    zskiplist *zsl;
-} zset;
-

 /* DIsk store threaded I/O request message */
 #define REDIS_IOJOB_LOAD 0
 #define REDIS_IOJOB_SAVE 1
 /* DIsk store threaded I/O request message */
 #define REDIS_IOJOB_LOAD 0
 #define REDIS_IOJOB_SAVE 1


@@ -841,6 +875,7 @@ void freeHashObject(robj *o);
 robj *createObject(int type, void *ptr);
 robj *createStringObject(char *ptr, size_t len);
 robj *dupStringObject(robj *o);
 robj *createObject(int type, void *ptr);
 robj *createStringObject(char *ptr, size_t len);
 robj *dupStringObject(robj *o);

+int isObjectRepresentableAsLongLong(robj *o, long long *llongval);

 robj *tryObjectEncoding(robj *o);
 robj *getDecodedObject(robj *o);
 size_t stringObjectLen(robj *o);
 robj *tryObjectEncoding(robj *o);
 robj *getDecodedObject(robj *o);
 size_t stringObjectLen(robj *o);


@@ -851,6 +886,7 @@ robj *createSetObject(void);
 robj *createIntsetObject(void);
 robj *createHashObject(void);
 robj *createZsetObject(void);
 robj *createIntsetObject(void);
 robj *createHashObject(void);
 robj *createZsetObject(void);

+robj *createZsetZiplistObject(void);

 int getLongFromObjectOrReply(redisClient *c, robj *o, long *target, const char *msg);
 int checkType(redisClient *c, robj *o, int type);
 int getLongLongFromObjectOrReply(redisClient *c, robj *o, long long *target, const char *msg);
 int getLongFromObjectOrReply(redisClient *c, robj *o, long *target, const char *msg);
 int checkType(redisClient *c, robj *o, int type);
 int getLongLongFromObjectOrReply(redisClient *c, robj *o, long long *target, const char *msg);


@@ -874,7 +910,6 @@ int fwriteBulkCount(FILE *fp, char prefix, int count);
 /* Replication */
 void replicationFeedSlaves(list *slaves, int dictid, robj **argv, int argc);
 void replicationFeedMonitors(list *monitors, int dictid, robj **argv, int argc);
 /* Replication */
 void replicationFeedSlaves(list *slaves, int dictid, robj **argv, int argc);
 void replicationFeedMonitors(list *monitors, int dictid, robj **argv, int argc);

-int syncWithMaster(void);

 void updateSlavesWaitingBgsave(int bgsaveerr);
 void replicationCron(void);
 
 void updateSlavesWaitingBgsave(int bgsaveerr);
 void replicationCron(void);
 


@@ -911,9 +946,24 @@ int startAppendOnly(void);
 void backgroundRewriteDoneHandler(int exitcode, int bysignal);
 
 /* Sorted sets data type */
 void backgroundRewriteDoneHandler(int exitcode, int bysignal);
 
 /* Sorted sets data type */

+
+/* Struct to hold a inclusive/exclusive range spec. */
+typedef struct {
+    double min, max;
+    int minex, maxex; /* are min or max exclusive? */
+} zrangespec;
+

 zskiplist *zslCreate(void);
 void zslFree(zskiplist *zsl);
 zskiplistNode *zslInsert(zskiplist *zsl, double score, robj *obj);
 zskiplist *zslCreate(void);
 void zslFree(zskiplist *zsl);
 zskiplistNode *zslInsert(zskiplist *zsl, double score, robj *obj);

+unsigned char *zzlInsert(unsigned char *zl, robj *ele, double score);
+int zslDelete(zskiplist *zsl, double score, robj *obj);
+zskiplistNode *zslFirstInRange(zskiplist *zsl, zrangespec range);
+double zzlGetScore(unsigned char *sptr);
+void zzlNext(unsigned char *zl, unsigned char **eptr, unsigned char **sptr);
+void zzlPrev(unsigned char *zl, unsigned char **eptr, unsigned char **sptr);
+unsigned int zsetLength(robj *zobj);
+void zsetConvert(robj *zobj, int encoding);

 
 /* Core functions */
 void freeMemoryIfNeeded(void);
 
 /* Core functions */
 void freeMemoryIfNeeded(void);


@@ -924,6 +974,7 @@ struct redisCommand *lookupCommandByCString(char *s);
 void call(redisClient *c, struct redisCommand *cmd);
 int prepareForShutdown();
 void redisLog(int level, const char *fmt, ...);
 void call(redisClient *c, struct redisCommand *cmd);
 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);


@@ -1001,16 +1052,6 @@ int pubsubUnsubscribeAllPatterns(redisClient *c, int notify);
 void freePubsubPattern(void *p);
 int listMatchPubsubPattern(void *a, void *b);
 
 void freePubsubPattern(void *p);
 int listMatchPubsubPattern(void *a, void *b);
 

-/* Utility functions */
-int stringmatchlen(const char *pattern, int patternLen,
-        const char *string, int stringLen, int nocase);
-int stringmatch(const char *pattern, const char *string, int nocase);
-long long memtoll(const char *p, int *err);
-int ll2string(char *s, size_t len, long long value);
-int isStringRepresentableAsLong(sds s, long *longval);
-int isStringRepresentableAsLongLong(sds s, long long *longval);
-int isObjectRepresentableAsLongLong(robj *o, long long *llongval);
-

 /* Configuration */
 void loadServerConfig(char *filename);
 void appendServerSaveParams(time_t seconds, int changes);
 /* Configuration */
 void loadServerConfig(char *filename);
 void appendServerSaveParams(time_t seconds, int changes);


@@ -1036,6 +1077,7 @@ long long emptyDb();
 int selectDb(redisClient *c, int id);
 void signalModifiedKey(redisDb *db, robj *key);
 void signalFlushedDb(int dbid);
 int selectDb(redisClient *c, int id);
 void signalModifiedKey(redisDb *db, robj *key);
 void signalFlushedDb(int dbid);

+unsigned int GetKeysInSlot(unsigned int hashslot, robj **keys, unsigned int count);

 
 /* API to get key arguments from commands */
 #define REDIS_GETKEYS_ALL 0
 
 /* API to get key arguments from commands */
 #define REDIS_GETKEYS_ALL 0


@@ -1053,7 +1095,10 @@ unsigned int keyHashSlot(char *key, int keylen);
 clusterNode *createClusterNode(char *nodename, int flags);
 int clusterAddNode(clusterNode *node);
 void clusterCron(void);
 clusterNode *createClusterNode(char *nodename, int flags);
 int clusterAddNode(clusterNode *node);
 void clusterCron(void);

-clusterNode *getNodeByQuery(redisClient *c, struct redisCommand *cmd, robj **argv, int argc, int *hashslot);
+clusterNode *getNodeByQuery(redisClient *c, struct redisCommand *cmd, robj **argv, int argc, int *hashslot, int *ask);
+
+/* Scripting */
+void scriptingInit(void);

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


@@ -1181,6 +1226,10 @@ void clusterCommand(redisClient *c);
 void restoreCommand(redisClient *c);
 void migrateCommand(redisClient *c);
 void dumpCommand(redisClient *c);
 void restoreCommand(redisClient *c);
 void migrateCommand(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));