Modules: first preview 31 March 2016.

src/server.c

@@ -123,6 +123,7 @@ struct redisServer server; /* server global state */
  *    are not fast commands.
  */
 struct redisCommand redisCommandTable[] = {
+    {"module",moduleCommand,-2,"as",0,NULL,1,1,1,0,0},
     {"get",getCommand,2,"rF",0,NULL,1,1,1,0,0},
     {"set",setCommand,-3,"wm",0,NULL,1,1,1,0,0},
     {"setnx",setnxCommand,3,"wmF",0,NULL,1,1,1,0,0},
@@ -648,6 +649,18 @@ dictType clusterNodesBlackListDictType = {
     NULL                        /* val destructor */
 };
 
+/* Cluster re-addition blacklist. This maps node IDs to the time
+ * we can re-add this node. The goal is to avoid readding a removed
+ * node for some time. */
+dictType modulesDictType = {
+    dictSdsCaseHash,            /* hash function */
+    NULL,                       /* key dup */
+    NULL,                       /* val dup */
+    dictSdsKeyCaseCompare,      /* key compare */
+    dictSdsDestructor,          /* key destructor */
+    NULL                        /* val destructor */
+};
+
 /* Migrate cache dict type. */
 dictType migrateCacheDictType = {
     dictSdsHash,                /* hash function */
@@ -2238,6 +2251,7 @@ void call(client *c, int flags) {
     /* Initialization: clear the flags that must be set by the command on
      * demand, and initialize the array for additional commands propagation. */
     c->flags &= ~(CLIENT_FORCE_AOF|CLIENT_FORCE_REPL|CLIENT_PREVENT_PROP);
+    redisOpArray prev_also_propagate = server.also_propagate;
     redisOpArrayInit(&server.also_propagate);
 
     /* Call the command. */
@@ -2333,6 +2347,7 @@ void call(client *c, int flags) {
         }
         redisOpArrayFree(&server.also_propagate);
     }
+    server.also_propagate = prev_also_propagate;
     server.stat_numcommands++;
 }
 
@@ -3993,6 +4008,7 @@ int main(int argc, char **argv) {
     dictSetHashFunctionSeed(tv.tv_sec^tv.tv_usec^getpid());
     server.sentinel_mode = checkForSentinelMode(argc,argv);
     initServerConfig();
+    moduleInitModulesSystem();
 
     /* Store the executable path and arguments in a safe place in order
      * to be able to restart the server later. */
@@ -4099,6 +4115,7 @@ int main(int argc, char **argv) {
     #ifdef __linux__
         linuxMemoryWarnings();
     #endif
+        moduleLoadFromQueue();
         loadDataFromDisk();
         if (server.cluster_enabled) {
             if (verifyClusterConfigWithData() == C_ERR) {