Re-use AOF buffer when it is small enough

[redis.git] / src / redis.h

diff --git a/src/redis.h b/src/redis.h
index 693347ef952116d57975977f293945e3c7e036fe..1a45cc8cd52260d525a8388fa52f36adcf06eb07 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 <lua.h>
 
 #include "ae.h"      /* Event driven programming library */
 #include "sds.h"     /* Dynamic safe strings */
@@ -136,6 +137,7 @@
 #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
@@ -210,6 +212,9 @@
 #define REDIS_MAXMEMORY_ALLKEYS_RANDOM 4
 #define REDIS_MAXMEMORY_NO_EVICTION 5
 
+/* 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)
@@ -345,7 +350,7 @@ struct sharedObjectsStruct {
     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,
@@ -640,6 +645,12 @@ struct redisServer {
     /* 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 {
@@ -732,6 +743,7 @@ extern struct sharedObjectsStruct shared;
 extern dictType setDictType;
 extern dictType zsetDictType;
 extern dictType clusterNodesDictType;
+extern dictType dbDictType;
 extern double R_Zero, R_PosInf, R_NegInf, R_Nan;
 dictType hashDictType;
 
@@ -772,6 +784,7 @@ 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, ...)
@@ -811,6 +824,7 @@ 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);
@@ -918,6 +932,7 @@ struct redisCommand *lookupCommandByCString(char *s);
 void call(redisClient *c);
 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);
@@ -1007,6 +1022,9 @@ int clusterAddNode(clusterNode *node);
 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);
@@ -1135,6 +1153,8 @@ 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));