Re: Win32 rename()/unlink() questions - Mailing list pgsql-hackers

Bruce Momjian wrote:
> Mike Mascari wrote:
> 
>>Actually, looking at the pg_pwd code, you want to determine a 
>>way for:
>>
>>1. Process 1 opens "foo"
>>2. Process 2 opens "foo"
>>3. Process 1 creates "bar"
>>4. Process 1 renames "bar" to "foo"
>>5. Process 2 can continue to read data from the open file handle 
>>and get the original "foo" data.
> 
> 
> Yep, that's it.
> 

So far, MoveFileEx("foo", "bar", MOVEFILE_REPLACE_EXISTING) 
returns "Access Denied" when Process 1 attempts the rename. But 
I'm continuing to investigate the possibilities...

Mike Mascari
mascarm@mascari.com