From e5d3c84ac197e7fd450d181db6b4e604fa80e97f Mon Sep 17 00:00:00 2001
From: Yossi Gottlieb <yossigo@gmail.com>
Date: Sun, 4 Mar 2018 15:09:38 +0200
Subject: [PATCH] Add a per-entry custom user data field.

This is useful to allow leaders to pass context between
raft_recv_entry() and a subsequent execution of the entry (after it was
committed) as an applylog callback.

This allows an optimized use pattern when entries received locally on
the leader can be used without going through an unnecessary
deserialization.
---
 include/raft.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/raft.h b/include/raft.h
index 7a8953c7..c7911de0 100644
--- a/include/raft.h
+++ b/include/raft.h
@@ -89,6 +89,9 @@ typedef struct
     /** type of entry */
     int type;
 
+    /** private local data */
+    void *user_data;
+
     raft_entry_data_t data;
 } raft_entry_t;