From e1a42f6a4481bc8bc9614e3769b7e4d414f8f4e6 Mon Sep 17 00:00:00 2001
From: Nitin Gupta <nitingupta910@gmail.com>
Date: Sat, 3 Dec 2016 15:17:51 -0800
Subject: [PATCH] Fix new value length in partial_merge_callback

---
 src/merge_operator.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/merge_operator.rs b/src/merge_operator.rs
index e299cd9..283e71f 100644
--- a/src/merge_operator.rs
+++ b/src/merge_operator.rs
@@ -119,7 +119,7 @@ pub unsafe extern "C" fn partial_merge_callback(raw_cb: *mut c_void,
     // TODO(tan) investigate zero-copy techniques to improve performance
     let buf = libc::malloc(result.len() as size_t);
     assert!(!buf.is_null());
-    *new_value_length = 1 as size_t;
+    *new_value_length = result.len() as size_t;
     *success = 1 as u8;
     ptr::copy(result.as_ptr() as *mut c_void, &mut *buf, result.len());
     buf as *mut c_char