From b2d1f7ed9f7d7c3205ffccb925a9250885d74bfa Mon Sep 17 00:00:00 2001
From: qingliangcn <qing.liang.cn@gmail.com>
Date: Wed, 27 Nov 2013 18:47:39 +0800
Subject: [PATCH] support nif module reload and upgrade

---
 c_src/esqlite3_nif.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/c_src/esqlite3_nif.c b/c_src/esqlite3_nif.c
index 1a41305..4f76eb9 100644
--- a/c_src/esqlite3_nif.c
+++ b/c_src/esqlite3_nif.c
@@ -869,6 +869,16 @@ on_load(ErlNifEnv* env, void** priv, ERL_NIF_TERM info)
     return 0;
 }
 
+static int on_reload(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info)
+{
+    return 0;
+}
+
+static int on_upgrade(ErlNifEnv* env, void** priv, void** old_priv_data, ERL_NIF_TERM load_info)
+{
+    return 0;
+}
+
 static ErlNifFunc nif_funcs[] = {
     {"start", 0, esqlite_start},
     {"open", 4, esqlite_open},
@@ -881,4 +891,4 @@ static ErlNifFunc nif_funcs[] = {
     {"close", 3, esqlite_close}
 };
 
-ERL_NIF_INIT(esqlite3_nif, nif_funcs, on_load, NULL, NULL, NULL);
+ERL_NIF_INIT(esqlite3_nif, nif_funcs, on_load, on_reload, on_upgrade, NULL);