From b1fa529cf973247ba79f23b1b5c9249582fc1bfe Mon Sep 17 00:00:00 2001
From: Pieter Noordhuis <pcnoordhuis@gmail.com>
Date: Mon, 20 Sep 2010 15:26:18 +0200
Subject: [PATCH] Add function to check if the reply reader is empty

---
 hiredis.c | 9 +++++++++
 hiredis.h | 1 +
 2 files changed, 10 insertions(+)

diff --git a/hiredis.c b/hiredis.c
index 664cc44..0b7a17e 100644
--- a/hiredis.c
+++ b/hiredis.c
@@ -326,6 +326,15 @@ void redisFreeReplyReader(void *reader) {
     free(r);
 }
 
+int redisIsReplyReaderEmpty(void *reader) {
+    redisReader *r = reader;
+    if (r->buf != NULL && sdslen(r->buf) > 0)
+        return 0;
+    if (r->rlist != NULL && r->rpos < r->rlen)
+        return 0;
+    return 1;
+}
+
 static void redisSetReplyReaderError(redisReader *r, redisReply *error) {
     /* Clear remaining buffer when we see a protocol error. */
     if (r->buf != NULL) {
diff --git a/hiredis.h b/hiredis.h
index 85fc540..482072e 100644
--- a/hiredis.h
+++ b/hiredis.h
@@ -54,6 +54,7 @@ void freeReplyObject(redisReply *r);
 redisReply *redisCommand(int fd, const char *format, ...);
 void *redisCreateReplyReader();
 void redisFreeReplyReader(void *ptr);
+int redisIsReplyReaderEmpty(void *ptr);
 void *redisFeedReplyReader(void *reader, char *buf, int len);
 
 #endif