From 9f7ae8925fb896d7de9345ea441c5da3fce6670c Mon Sep 17 00:00:00 2001
From: Hallvard Furuseth <hallvard@openldap.org>
Date: Fri, 4 Oct 2013 00:48:19 +0200
Subject: [PATCH] Add Caveat: Readers need write access. Whitespace.

---
 libraries/liblmdb/lmdb.h     | 6 +++++-
 libraries/liblmdb/mdb.c      | 2 +-
 libraries/liblmdb/mdb_stat.c | 2 +-
 libraries/liblmdb/midl.c     | 4 ++--
 4 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/libraries/liblmdb/lmdb.h b/libraries/liblmdb/lmdb.h
index 8cdac26b06..f6dfa60c38 100644
--- a/libraries/liblmdb/lmdb.h
+++ b/libraries/liblmdb/lmdb.h
@@ -66,6 +66,10 @@
  *	  BSD systems or when otherwise configured with MDB_USE_POSIX_SEM.
  *	  Multiple users can cause startup to fail later, as noted above.
  *
+ *	- There is normally no pure read-only mode, since readers need write
+ *	  access to locks and lock file. Exceptions: On read-only filesystems
+ *	  or with the #MDB_NOLOCK flag described under #mdb_env_open().
+ *
  *	- A thread can only use one transaction at a time, plus any child
  *	  transactions.  Each transaction belongs to one thread.  See below.
  *	  The #MDB_NOTLS flag changes this for read-only transactions.
@@ -489,7 +493,7 @@ int  mdb_env_create(MDB_env **env);
 	 *		like wild pointer writes and other bad updates into the database.
 	 *		Incompatible with nested transactions.
 	 *		Processes with and without MDB_WRITEMAP on the same environment do
-	 *		not cooperate well. 
+	 *		not cooperate well.
 	 *	<li>#MDB_NOMETASYNC
 	 *		Flush system buffers to disk only once per transaction, omit the
 	 *		metadata flush. Defer that until the system flushes files to disk,
diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index 2f671ed0a1..d1cd8643fc 100644
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -8258,7 +8258,7 @@ static int mdb_pid_insert(pid_t *ids, pid_t pid)
 			return -1;
 		}
 	}
-	
+
 	if( val > 0 ) {
 		++cursor;
 	}
diff --git a/libraries/liblmdb/mdb_stat.c b/libraries/liblmdb/mdb_stat.c
index aeb573a495..40bd4ccf1d 100644
--- a/libraries/liblmdb/mdb_stat.c
+++ b/libraries/liblmdb/mdb_stat.c
@@ -199,7 +199,7 @@ int main(int argc, char *argv[])
 		printf("mdb_open failed, error %d %s\n", rc, mdb_strerror(rc));
 		goto txn_abort;
 	}
-   
+
 	rc = mdb_stat(txn, dbi, &mst);
 	if (rc) {
 		printf("mdb_stat failed, error %d %s\n", rc, mdb_strerror(rc));
diff --git a/libraries/liblmdb/midl.c b/libraries/liblmdb/midl.c
index 0225af9584..5ee2129046 100644
--- a/libraries/liblmdb/midl.c
+++ b/libraries/liblmdb/midl.c
@@ -59,7 +59,7 @@ unsigned mdb_midl_search( MDB_IDL ids, MDB_ID id )
 			return cursor;
 		}
 	}
-	
+
 	if( val > 0 ) {
 		++cursor;
 	}
@@ -89,7 +89,7 @@ int mdb_midl_insert( MDB_IDL ids, MDB_ID id )
 		/* no room */
 		--ids[0];
 		return -2;
-	
+
 	} else {
 		/* insert id */
 		for (i=ids[0]; i>x; i--)
-- 
2.39.5