Extend REDISMODULE_CTX_FLAGS to indicate if command was sent by master

src/module.c

@@ -1390,6 +1390,9 @@ int RM_GetContextFlags(RedisModuleCtx *ctx) {
          flags |= REDISMODULE_CTX_FLAGS_LUA;
         if (ctx->client->flags & CLIENT_MULTI)
          flags |= REDISMODULE_CTX_FLAGS_MULTI;
+        /* Module command recieved from MASTER, is replicated. */
+        if (ctx->client->flags & CLIENT_MASTER)
+         flags |= REDISMODULE_CTX_FLAGS_REPLICATED;
     }
 
     if (server.cluster_enabled)

src/redismodule.h

@@ -85,6 +85,9 @@
 #define REDISMODULE_CTX_FLAGS_OOM (1<<10)
 /* Less than 25% of memory available according to maxmemory. */
 #define REDISMODULE_CTX_FLAGS_OOM_WARNING (1<<11)
+/* The command was sent over the replication link. */
+#define REDISMODULE_CTX_FLAGS_REPLICATED (1<<12)
+
 
 #define REDISMODULE_NOTIFY_GENERIC (1<<2)     /* g */
 #define REDISMODULE_NOTIFY_STRING (1<<3)      /* $ */