msync should default to fully synchronous

diff --git a/libraries/libmdb/mdb.c b/libraries/libmdb/mdb.c
index d44b1ec191a264015b55a68d4ca0de5dcfca5b5c..e13f8615c23ceebb66220230c29d12b6c1e8d5b6 100644 (file)
--- a/libraries/libmdb/mdb.c
+++ b/libraries/libmdb/mdb.c
@@ -1478,7 +1478,7 @@ mdb_env_sync(MDB_env *env, int force)
        int rc = 0;
        if (force || !F_ISSET(env->me_flags, MDB_NOSYNC)) {
                if (env->me_flags & MDB_WRITEMAP) {
-                       int flags = (env->me_flags & MDB_MAPSYNC) ? MS_SYNC : MS_ASYNC;
+                       int flags = (env->me_flags & MDB_MAPASYNC) ? MS_ASYNC : MS_SYNC;
                        if (MDB_MSYNC(env->me_map, env->me_mapsize, flags))
                                rc = ErrCode();
 #ifdef _WIN32
@@ -2383,7 +2383,7 @@ mdb_env_write_meta(MDB_txn *txn)
                mp->mm_last_pg = txn->mt_next_pgno - 1;
                mp->mm_txnid = txn->mt_txnid;
                if (!(env->me_flags & (MDB_NOMETASYNC|MDB_NOSYNC))) {
-                       rc = (env->me_flags & MDB_MAPSYNC) ? MS_SYNC : MS_ASYNC;
+                       rc = (env->me_flags & MDB_MAPASYNC) ? MS_ASYNC : MS_SYNC;
                        ptr = env->me_map;
                        if (toggle)
                                ptr += env->me_psize;

diff --git a/libraries/libmdb/mdb.h b/libraries/libmdb/mdb.h
index 8eefc7d5167339f5300ee82f64bb4fcedcf87f86..4430c58622925e1362618a72544520d1eda44c63 100644 (file)
--- a/libraries/libmdb/mdb.h
+++ b/libraries/libmdb/mdb.h
@@ -163,8 +163,8 @@ typedef void (MDB_rel_func)(MDB_val *item, void *oldptr, void *newptr, void *rel
 #define MDB_NOMETASYNC         0x40000
        /** use writable mmap */
 #define MDB_WRITEMAP           0x80000
-       /** use synchronous msync */
-#define MDB_MAPSYNC            0x100000
+       /** use asynchronous msync */
+#define MDB_MAPASYNC           0x100000
 /** @} */
 
 /**    @defgroup       mdb_open        Database Flags