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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.
vl32b
Howard Chu 9 years ago committed by Howard Chu
parent fab89e678c
commit 755cb69d8b
1 changed files with 3 additions and 2 deletions
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  1. 5
      libraries/liblmdb/mdb.c

5
libraries/liblmdb/mdb.c
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@ -2348,7 +2348,7 @@ mdb_page_alloc(MDB_cursor *mc, int num, MDB_page **mp)
goto fail; goto fail;
} }
#ifdef _WIN32 #ifdef _WIN32
{ if (env->me_flags & MDB_WRITEMAP) {
void *p; void *p;
p = (MDB_page *)(env->me_map + env->me_psize * pgno); p = (MDB_page *)(env->me_map + env->me_psize * pgno);
p = VirtualAlloc(p, env->me_psize * num, MEM_COMMIT, p = VirtualAlloc(p, env->me_psize * num, MEM_COMMIT,
@ -4352,7 +4352,8 @@ mdb_env_open2(MDB_env *env)
/* For FIXEDMAP, make sure the file is non-empty before we attempt to map it */ /* For FIXEDMAP, make sure the file is non-empty before we attempt to map it */
if (newenv) { if (newenv) {
char dummy = 0; 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) { if (!rc) {
rc = ErrCode(); rc = ErrCode();
return rc; return rc;

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