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msync should default to fully synchronous

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This commit is contained in:
Howard Chu 2012-09-06 11:17:25 -07:00
parent 1c733bdc4e
commit 2e677bcb99
2 changed files with 4 additions and 4 deletions
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4
libraries/libmdb/mdb.c
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@ -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;

4
libraries/libmdb/mdb.h
View File

@ -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