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ITS#9618 fix Windows WRITEMAP flush

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Revert back to using standard FlushViewOfFile/FlushFileBuffers
to sync data with WRITEMAP mode on Windows
This commit is contained in:
Kris Zyp 2021-07-28 15:03:13 -06:00 committed by Howard Chu
parent 52836cdb8d
commit e2b82098fa
1 changed files with 4 additions and 10 deletions
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14
libraries/liblmdb/mdb.c
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@ -3008,9 +3008,9 @@ mdb_env_sync0(MDB_env *env, int force, pgno_t numpgs)
int rc = 0;
if (env->me_flags & MDB_RDONLY)
return EACCES;
if (force
#ifndef _WIN32 /* Sync is normally achieved in Windows by doing WRITE_THROUGH writes */
|| !(env->me_flags & MDB_NOSYNC)
if (force || !(env->me_flags & MDB_NOSYNC)
#ifdef _WIN32 /* Sync is normally achieved in Windows by doing WRITE_THROUGH writes */
&& (env->me_flags & MDB_WRITEMAP)
#endif
) {
if (env->me_flags & MDB_WRITEMAP) {
@ -3958,13 +3958,7 @@ mdb_page_flush(MDB_txn *txn, int keep)
j = i = keep;
if (env->me_flags & MDB_WRITEMAP
#ifdef _WIN32
/* In windows, we still do writes to the file (with write-through enabled in sync mode),
* as this is faster than FlushViewOfFile/FlushFileBuffers */
&& (env->me_flags & MDB_NOSYNC)
#endif
) {
if (env->me_flags & MDB_WRITEMAP) {
goto done;
}