有没有办法删除FILE_FLAG_DELETE_ON_CLOSE？ [英] is there a way to remove FILE_FLAG_DELETE_ON_CLOSE?

问题描述

在我的应用程序中，我想用FILE_FLAG_DELETE_ON_CLOSE打开一个临时文件。但是有些情况下，需要保留临时文件，并且相当大

我想在打开的句柄上删除FILE_FLAG_DELETE_ON_CLOSE属性？这可能吗？复制文件或重命名的内容是不是我想要的，我想删除属性。这是由于我如何处理一些写入，在我的应用程序关闭句柄将打开我的竞争条件

解决方案

你可以反过来做。
首先打开文件，指定 FILE_SHARE_DELETE 。
然后，当你需要关闭文件时，用 FILE_DELETE_ON_CLOSE 再次打开它，然后关闭这两个句柄。或者，关闭它，它不会被删除。

in my app I'd like to open a temp file with FILE_FLAG_DELETE_ON_CLOSE. however there are some cases where the temp file needs to be kept and is quite large

I'd like to remove the FILE_FLAG_DELETE_ON_CLOSE attribute on an opened handle? is this possible? copying the contents of the file or renaming isnt quite what I want, I'd like to remove the attribute. this is due to how i'm transacting some writes, in my app closing the handle will open me up to a race condition

解决方案

You could do it the other way around. Open the file first, specifying FILE_SHARE_DELETE. Then, when you need to close the file, open it again with FILE_DELETE_ON_CLOSE, then close both handles. Or, just close it, and it won't be deleted.

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