Refuse writes if can't persist on disk.

[redis.git] / src / redis.h

diff --git a/src/redis.h b/src/redis.h
index dbb56ca3e24c920208ce1f79a913bfae5334bf03..daaf362fbed47e526007eda6a9d0e343b610bf06 100644 (file)
--- a/src/redis.h
+++ b/src/redis.h
@@ -46,6 +46,7 @@
 #define REDIS_EXPIRELOOKUPS_PER_CRON    10 /* lookup 10 expires per loop */
 #define REDIS_MAX_WRITE_PER_EVENT (1024*64)
 #define REDIS_SHARED_INTEGERS 10000
 #define REDIS_EXPIRELOOKUPS_PER_CRON    10 /* lookup 10 expires per loop */
 #define REDIS_MAX_WRITE_PER_EVENT (1024*64)
 #define REDIS_SHARED_INTEGERS 10000

+#define REDIS_SHARED_BULKHDR_LEN 32

 #define REDIS_MAX_LOGMSG_LEN    1024 /* Default maximum length of syslog messages */
 #define REDIS_AOF_REWRITE_PERC  100
 #define REDIS_AOF_REWRITE_MIN_SIZE (1024*1024)
 #define REDIS_MAX_LOGMSG_LEN    1024 /* Default maximum length of syslog messages */
 #define REDIS_AOF_REWRITE_PERC  100
 #define REDIS_AOF_REWRITE_MIN_SIZE (1024*1024)


@@ -77,6 +78,7 @@
 #define REDIS_CMD_PUBSUB 32                 /* "p" flag */
 #define REDIS_CMD_NOSCRIPT  64              /* "s" flag */
 #define REDIS_CMD_RANDOM 128                /* "R" flag */
 #define REDIS_CMD_PUBSUB 32                 /* "p" flag */
 #define REDIS_CMD_NOSCRIPT  64              /* "s" flag */
 #define REDIS_CMD_RANDOM 128                /* "R" flag */

+#define REDIS_CMD_SORT_FOR_SCRIPT 256       /* "S" flag */

 
 /* Object types */
 #define REDIS_STRING 0
 
 /* Object types */
 #define REDIS_STRING 0


@@ -236,6 +238,18 @@
                                        points are configured. */
 #define REDIS_SHUTDOWN_NOSAVE 2     /* Don't SAVE on SHUTDOWN. */
 
                                        points are configured. */
 #define REDIS_SHUTDOWN_NOSAVE 2     /* Don't SAVE on SHUTDOWN. */
 

+/* Command call flags, see call() function */
+#define REDIS_CALL_NONE 0
+#define REDIS_CALL_SLOWLOG 1
+#define REDIS_CALL_STATS 2
+#define REDIS_CALL_PROPAGATE 4
+#define REDIS_CALL_FULL (REDIS_CALL_SLOWLOG | REDIS_CALL_STATS | REDIS_CALL_PROPAGATE)
+
+/* Command propagation flags, see propagate() function */
+#define REDIS_PROPAGATE_NONE 0
+#define REDIS_PROPAGATE_AOF 1
+#define REDIS_PROPAGATE_REPL 2
+

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


@@ -347,12 +361,14 @@ 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, *noscripterr, *loadingerr, *slowscripterr, *plus,
-    *select0, *select1, *select2, *select3, *select4,
+    *outofrangeerr, *noscripterr, *loadingerr, *slowscripterr, *bgsaveerr,
+    *plus, *select0, *select1, *select2, *select3, *select4,

     *select5, *select6, *select7, *select8, *select9,
     *select5, *select6, *select7, *select8, *select9,

-    *messagebulk, *pmessagebulk, *subscribebulk, *unsubscribebulk, *mbulk3,
-    *mbulk4, *psubscribebulk, *punsubscribebulk,
-    *integers[REDIS_SHARED_INTEGERS];
+    *messagebulk, *pmessagebulk, *subscribebulk, *unsubscribebulk,
+    *psubscribebulk, *punsubscribebulk, *del, *rpop, *lpop,
+    *integers[REDIS_SHARED_INTEGERS],
+    *mbulkhdr[REDIS_SHARED_BULKHDR_LEN], /* "*<value>\r\n" */
+    *bulkhdr[REDIS_SHARED_BULKHDR_LEN];  /* "$<value>\r\n" */

 };
 
 /* ZSETs use a specialized version of Skiplists */
 };
 
 /* ZSETs use a specialized version of Skiplists */


@@ -378,11 +394,35 @@ typedef struct zset {
 } zset;
 
 typedef struct clientBufferLimitsConfig {
 } zset;
 
 typedef struct clientBufferLimitsConfig {

-    unsigned long hard_limit_bytes;
-    unsigned long soft_limit_bytes;
+    unsigned long long hard_limit_bytes;
+    unsigned long long soft_limit_bytes;

     time_t soft_limit_seconds;
 } clientBufferLimitsConfig;
 
     time_t soft_limit_seconds;
 } clientBufferLimitsConfig;
 

+/* The redisOp structure defines a Redis Operation, that is an instance of
+ * a command with an argument vector, database ID, propagation target
+ * (REDIS_PROPAGATE_*), and command pointer.
+ *
+ * Currently only used to additionally propagate more commands to AOF/Replication
+ * after the propagation of the executed command. */
+typedef struct redisOp {
+    robj **argv;
+    int argc, dbid, target;
+    struct redisCommand *cmd;
+} redisOp;
+
+/* Defines an array of Redis operations. There is an API to add to this
+ * structure in a easy way.
+ *
+ * redisOpArrayInit();
+ * redisOpArrayAppend();
+ * redisOpArrayFree();
+ */
+typedef struct redisOpArray {
+    redisOp *ops;
+    int numops;
+} redisOpArray;
+

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


@@ -526,6 +566,8 @@ struct redisServer {
     int activerehashing;        /* Incremental rehash in serverCron() */
     char *requirepass;          /* Pass for AUTH command, or NULL */
     char *pidfile;              /* PID file path */
     int activerehashing;        /* Incremental rehash in serverCron() */
     char *requirepass;          /* Pass for AUTH command, or NULL */
     char *pidfile;              /* PID file path */

+    int arch_bits;              /* 32 or 64 depending on sizeof(long) */
+    int cronloops;              /* Number of times the cron function run */

     /* Networking */
     int port;                   /* TCP listening port */
     char *bindaddr;             /* Bind address or NULL */
     /* Networking */
     int port;                   /* TCP listening port */
     char *bindaddr;             /* Bind address or NULL */


@@ -545,9 +587,7 @@ struct redisServer {
     off_t loading_loaded_bytes;
     time_t loading_start_time;
     /* Fast pointers to often looked up command */
     off_t loading_loaded_bytes;
     time_t loading_start_time;
     /* Fast pointers to often looked up command */

-    struct redisCommand *delCommand, *multiCommand;
-    int cronloops;                  /* Number of times the cron function run */
-    time_t lastsave;                /* Unix time of last save succeeede */
+    struct redisCommand *delCommand, *multiCommand, *lpushCommand;

     /* Fields used only for stats */
     time_t stat_starttime;          /* Server start time */
     long long stat_numcommands;     /* Number of processed commands */
     /* Fields used only for stats */
     time_t stat_starttime;          /* Server start time */
     long long stat_numcommands;     /* Number of processed commands */


@@ -595,6 +635,10 @@ struct redisServer {
     int saveparamslen;              /* Number of saving points */
     char *rdb_filename;             /* Name of RDB file */
     int rdb_compression;            /* Use compression in RDB? */
     int saveparamslen;              /* Number of saving points */
     char *rdb_filename;             /* Name of RDB file */
     int rdb_compression;            /* Use compression in RDB? */

+    time_t lastsave;                /* Unix time of last save succeeede */
+    int lastbgsave_status;          /* REDIS_OK or REDIS_ERR */
+    /* Propagation of commands in AOF / replication */
+    redisOpArray also_propagate;    /* Additional command to propagate. */

     /* Logging */
     char *logfile;                  /* Path of log file */
     int syslog_enabled;             /* Is syslog enabled? */
     /* Logging */
     char *logfile;                  /* Path of log file */
     int syslog_enabled;             /* Is syslog enabled? */


@@ -626,6 +670,7 @@ struct redisServer {
     list *unblocked_clients; /* list of clients to unblock before next loop */
     /* Sort parameters - qsort_r() is only available under BSD so we
      * have to take this state global, in order to pass it to sortCompare() */
     list *unblocked_clients; /* list of clients to unblock before next loop */
     /* 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_dontsort;

     int sort_desc;
     int sort_alpha;
     int sort_bypattern;
     int sort_desc;
     int sort_alpha;
     int sort_bypattern;


@@ -804,7 +849,10 @@ void rewriteClientCommandVector(redisClient *c, int argc, ...);
 void rewriteClientCommandArgument(redisClient *c, int i, robj *newval);
 unsigned long getClientOutputBufferMemoryUsage(redisClient *c);
 void freeClientsInAsyncFreeQueue(void);
 void rewriteClientCommandArgument(redisClient *c, int i, robj *newval);
 unsigned long getClientOutputBufferMemoryUsage(redisClient *c);
 void freeClientsInAsyncFreeQueue(void);

-int asyncCloseClientOnOutputBufferLimitReached(redisClient *c);
+void asyncCloseClientOnOutputBufferLimitReached(redisClient *c);
+int getClientLimitClassByName(char *name);
+char *getClientLimitClassName(int class);
+void flushSlavesOutputBuffers(void);

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


@@ -821,7 +869,7 @@ void listTypeTryConversion(robj *subject, robj *value);
 void listTypePush(robj *subject, robj *value, int where);
 robj *listTypePop(robj *subject, int where);
 unsigned long listTypeLength(robj *subject);
 void listTypePush(robj *subject, robj *value, int where);
 robj *listTypePop(robj *subject, int where);
 unsigned long listTypeLength(robj *subject);

-listTypeIterator *listTypeInitIterator(robj *subject, int index, unsigned char direction);
+listTypeIterator *listTypeInitIterator(robj *subject, long index, unsigned char direction);

 void listTypeReleaseIterator(listTypeIterator *li);
 int listTypeNext(listTypeIterator *li, listTypeEntry *entry);
 robj *listTypeGet(listTypeEntry *entry);
 void listTypeReleaseIterator(listTypeIterator *li);
 int listTypeNext(listTypeIterator *li, listTypeEntry *entry);
 robj *listTypeGet(listTypeEntry *entry);


@@ -885,7 +933,7 @@ int syncReadLine(int fd, char *ptr, ssize_t size, int timeout);
 
 /* Replication */
 void replicationFeedSlaves(list *slaves, 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);
+void replicationFeedMonitors(redisClient *c, list *monitors, int dictid, robj **argv, int argc);

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


@@ -928,12 +976,14 @@ unsigned int zsetLength(robj *zobj);
 void zsetConvert(robj *zobj, int encoding);
 
 /* Core functions */
 void zsetConvert(robj *zobj, int encoding);
 
 /* Core functions */

-void freeMemoryIfNeeded(void);
+int freeMemoryIfNeeded(void);

 int processCommand(redisClient *c);
 void setupSignalHandlers(void);
 struct redisCommand *lookupCommand(sds name);
 struct redisCommand *lookupCommandByCString(char *s);
 int processCommand(redisClient *c);
 void setupSignalHandlers(void);
 struct redisCommand *lookupCommand(sds name);
 struct redisCommand *lookupCommandByCString(char *s);

-void call(redisClient *c);
+void call(redisClient *c, int flags);
+void propagate(struct redisCommand *cmd, int dbid, robj **argv, int argc, int flags);
+void alsoPropagate(struct redisCommand *cmd, int dbid, robj **argv, int argc, int target);

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


@@ -1169,6 +1219,7 @@ void clientCommand(redisClient *c);
 void evalCommand(redisClient *c);
 void evalShaCommand(redisClient *c);
 void scriptCommand(redisClient *c);
 void evalCommand(redisClient *c);
 void evalShaCommand(redisClient *c);
 void scriptCommand(redisClient *c);

+void timeCommand(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));