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ITS#8324 additional tweaks

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VirtualAlloc is only needed with WRITEMAP. Regular writes
already extend the mmap implictly.
This commit is contained in:
Howard Chu 2015-12-06 20:54:23 +00:00
parent 4198bbde17
commit c4e31434c7
1 changed files with 3 additions and 2 deletions
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5
libraries/liblmdb/mdb.c
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@ -2324,7 +2324,7 @@ mdb_page_alloc(MDB_cursor *mc, int num, MDB_page **mp)
goto fail;
}
#ifdef _WIN32
{
if (env->me_flags & MDB_WRITEMAP) {
void *p;
p = (MDB_page *)(env->me_map + env->me_psize * pgno);
p = VirtualAlloc(p, env->me_psize * num, MEM_COMMIT,
@ -4260,7 +4260,8 @@ mdb_env_open2(MDB_env *env)
/* For FIXEDMAP, make sure the file is non-empty before we attempt to map it */
if (newenv) {
char dummy = 0;
rc = WriteFile(env->me_fd, &dummy, 1, NULL, NULL);
DWORD len;
rc = WriteFile(env->me_fd, &dummy, 1, &len, NULL);
if (!rc) {
rc = ErrCode();
return rc;