From 1ac3c8308f78269b31de0bd9e6cd99dcda7b48d1 Mon Sep 17 00:00:00 2001
From: Howard Chu <hyc@symas.com>
Date: Fri, 9 Aug 2013 04:51:33 -0700
Subject: [PATCH] Add mdb_env_get_maxkeysize()

---
 libraries/liblmdb/lmdb.h | 7 +++++++
 libraries/liblmdb/mdb.c  | 5 +++++
 2 files changed, 12 insertions(+)

diff --git a/libraries/liblmdb/lmdb.h b/libraries/liblmdb/lmdb.h
index 9019b31..8bd341c 100644
--- a/libraries/liblmdb/lmdb.h
+++ b/libraries/liblmdb/lmdb.h
@@ -720,6 +720,13 @@ int  mdb_env_get_maxreaders(MDB_env *env, unsigned int *readers);
 	 */
 int  mdb_env_set_maxdbs(MDB_env *env, MDB_dbi dbs);
 
+	/** @brief Get the maximum size of a key for the environment.
+	 *
+	 * @param[in] env An environment handle returned by #mdb_env_create()
+	 * @return The maximum size of a key. (#MDB_MAXKEYSIZE)
+	 */
+int  mdb_env_get_maxkeysize(MDB_env *env);
+
 	/** @brief Create a transaction for use with the environment.
 	 *
 	 * The transaction handle may be discarded using #mdb_txn_abort() or #mdb_txn_commit().
diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index 0c53766..ca72334 100644
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -8069,6 +8069,11 @@ int mdb_set_relctx(MDB_txn *txn, MDB_dbi dbi, void *ctx)
 	return MDB_SUCCESS;
 }
 
+int mdb_env_get_maxkeysize(MDB_env *env)
+{
+	return MDB_MAXKEYSIZE;
+}
+
 int mdb_reader_list(MDB_env *env, MDB_msg_func *func, void *ctx)
 {
 	unsigned int i, rdrs;