From 2967c00c2ca07fdffd938945cbd5467502f879c5 Mon Sep 17 00:00:00 2001
From: antirez <antirez@gmail.com>
Date: Tue, 5 Apr 2016 15:53:04 +0200
Subject: [PATCH] Modules: RedisModule_ReplyWithNull() implemented.

---
 src/module.c      | 7 +++++++
 src/redismodule.h | 2 ++
 2 files changed, 9 insertions(+)

diff --git a/src/module.c b/src/module.c
index dacb7ff8..b1269b98 100644
--- a/src/module.c
+++ b/src/module.c
@@ -464,6 +464,12 @@ int RM_ReplyWithString(RedisModuleCtx *ctx, RedisModuleString *str) {
     return REDISMODULE_OK;
 }
 
+/* Reply with NULL. */
+int RedisModule_ReplyWithNull(RedisModuleCtx *ctx) {
+    addReply(ctx->client,shared.nullbulk);
+    return REDISMODULE_OK;
+}
+
 /* --------------------------------------------------------------------------
  * Commands replication API
  * -------------------------------------------------------------------------- */
@@ -1197,6 +1203,7 @@ void moduleRegisterCoreAPI(void) {
     REGISTER_API(ReplyWithArray);
     REGISTER_API(ReplyWithString);
     REGISTER_API(ReplyWithStringBuffer);
+    REGISTER_API(ReplyWithNull);
     REGISTER_API(GetSelectedDb);
     REGISTER_API(SelectDb);
     REGISTER_API(OpenKey);
diff --git a/src/redismodule.h b/src/redismodule.h
index 088dfa8b..4daba2a4 100644
--- a/src/redismodule.h
+++ b/src/redismodule.h
@@ -85,6 +85,7 @@ int REDISMODULE_API_FUNC(RedisModule_ReplyWithSimpleString)(RedisModuleCtx *ctx,
 int REDISMODULE_API_FUNC(RedisModule_ReplyWithArray)(RedisModuleCtx *ctx, int len);
 int REDISMODULE_API_FUNC(RedisModule_ReplyWithStringBuffer)(RedisModuleCtx *ctx, const char *buf, size_t len);
 int REDISMODULE_API_FUNC(RedisModule_ReplyWithString)(RedisModuleCtx *ctx, RedisModuleString *str);
+int REDISMODULE_API_FUNC(RedisModule_ReplyWithNull)(RedisModuleCtx *ctx);
 int REDISMODULE_API_FUNC(RedisModule_StringToLongLong)(RedisModuleString *str, long long *ll);
 void REDISMODULE_API_FUNC(RedisModule_AutoMemory)(RedisModuleCtx *ctx);
 int REDISMODULE_API_FUNC(RedisModule_Replicate)(RedisModuleCtx *ctx, const char *cmdname, const char *fmt, ...);
@@ -109,6 +110,7 @@ static int RedisModule_Init(RedisModuleCtx *ctx, const char *name, int ver, int
     REDISMODULE_GET_API(ReplyWithArray);
     REDISMODULE_GET_API(ReplyWithStringBuffer);
     REDISMODULE_GET_API(ReplyWithString);
+    REDISMODULE_GET_API(ReplyWithNull);
     REDISMODULE_GET_API(GetSelectedDb);
     REDISMODULE_GET_API(SelectDb);
     REDISMODULE_GET_API(OpenKey);