cjohns at cybertec.com.au
Tue Jun 3 13:44:01 UTC 2003
Eric Valette wrote:
> Chris Johns wrote:
>> Is this correct behaviour ? The Single Unix Standard for unlink()
>> states in the error codes:
>> The file named by the path argument cannot be unlinked
>> because it is being used by the system or another process
>> and the implementation considers this an error.
>> My reading is an open() then unlink() should fail.
> I disagree : on Unix in general, you can unlink a file even if the
> refcount in non zero. In this case it disappear from the file system
> name space so that no other open can be performed. The file is deleted
> once the refcount drops to zero. The EBUSY code is a corner case for
> executable file, as the VM can request pages for running process via
> paging in and may use the path of the executable...
> At least this is my understanding of EBUSY.
Chris Johns, cjohns at cybertec.com.au
More information about the users