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mdbx-windows: resize file on umnap.

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Change-Id: Ia4739bfcd2cc7b91c14e294c7569cbee582165b1
This commit is contained in:
Leonid Yuriev 2018-01-14 21:02:08 +03:00 committed by Leo Yuriev
parent 5acf93c54d
commit 8d4b6b187f
1 changed files with 8 additions and 2 deletions
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10
src/osal.c
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@ -863,7 +863,7 @@ int mdbx_mmap(int flags, mdbx_mmap_t *map, size_t size, size_t limit) {
if (rc == MDBX_SUCCESS)
map->filesize = size;
/* ignore error, because Windows unable shrink file
* that already mapped (by another process) */;
* that already mapped (by another process) */
}
LARGE_INTEGER SectionSize;
@ -924,6 +924,12 @@ int mdbx_munmap(mdbx_mmap_t *map) {
NTSTATUS rc = NtUnmapViewOfSection(GetCurrentProcess(), map->address);
if (!NT_SUCCESS(rc))
ntstatus2errcode(rc);
if (map->filesize != map->current &&
mdbx_filesize(map->fd, &map->filesize) == MDBX_SUCCESS &&
map->filesize != map->current)
(void)mdbx_ftruncate(map->fd, map->current);
map->length = 0;
map->current = 0;
map->address = nullptr;
@ -1019,7 +1025,7 @@ retry_file_and_section:
if (err == MDBX_SUCCESS)
map->filesize = size;
/* ignore error, because Windows unable shrink file
* that already mapped (by another process) */;
* that already mapped (by another process) */
}
SectionSize.QuadPart = size;