Re: Atomicity under Windows

Okay, so it looks like one can get portable concurrency atomicity using
apr_file_lock() (which uses LockFile() on Windows) or with
apr_file_open() with the APR_EXCL flag (which calls CreateFile() with
the CREATE_NEW flag on Windows). That's definitely good to know.

Failure atomicity looks harder. There's no APR interface to the
FILE_FLAG_WRITE_THROUGH create flag; even if this were corrected (and
I'm not sure if it can be, since there's no Unix analog), I'm not sure
how much of a gurantee it gives for file operations. And there would
still be directory operations to worry about.

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Received on Sun Jun 9 22:32:38 2002