Enable FILE_SHARE_DELETE on standalone files in disk buckets

This allows us to delete the file even if it is open for read.
We do a delete, the rename since we are not allowed to do a rename-overwrite, only delete.
As we have the shard lock for the file we want to replace we can safely do a delete+rename.
In the rare case that we fail to rename the file into place the old data is lost.
As this is a *cache* and it should be very rare this is OK.

1 files changed, 1 insertions, 0 deletions

diff --git a/zencore/include/zencore/iobuffer.h b/zencore/include/zencore/iobuffer.h
index 5d9daa1c7..bf658922d 100644
--- a/zencore/include/zencore/iobuffer.h
+++ b/zencore/include/zencore/iobuffer.h
@@ -403,6 +403,7 @@ class IoBufferBuilder
 {
 public:
 	ZENCORE_API static IoBuffer MakeFromFile(const std::filesystem::path& FileName, uint64_t Offset = 0, uint64_t Size = ~0ull);
+	ZENCORE_API static IoBuffer MakeFromFileWithSharedDelete(const std::filesystem::path& FileName);
 	ZENCORE_API static IoBuffer MakeFromTemporaryFile(const std::filesystem::path& FileName);
 	ZENCORE_API static IoBuffer MakeFromFileHandle(void* FileHandle, uint64_t Offset = 0, uint64_t Size = ~0ull);
 	ZENCORE_API static IoBuffer ReadFromFileMaybe(IoBuffer& InBuffer);