Re: &error() and locks...

[Jamie C. <jca...@we...>]

jam...@te... wrote:

>>>Hi Jamie,
>>>
>>>If you call &error without explicitly calling unlock_file(), will locks
>>>created
>>>by lock_file be released?  I looked at the code and it was not readily
>>>apearant
>>>that this was the case, but I could have missed something.
>>>
>>
>>No, they won't .. however, because the lock files contain the PID of the
>>process that created them, as soon as it exits they will effectively be
>>
> unlocked.
> 
>>However, it is probably better for the &error function to call
>>
> &unlock_all_files,
> 
>>so that useless .lock files aren't left hanging around.
>>
> Another possibility is to create an END subroutine inside the web-lib.pl
> library
> that calls &unlock_all_files().  In this way you can ensure that if the
> script exits
> this will be called.  This won't catch signals as I recall, but you can
> also
> settup various signal handlers to call END() if you wanted to go the extra
> mile
> to insure lock files go away when they are supposed to.  This is also a
> good
> strategy for dealing with pid files and things like that.
> 
> Cheers...james

Unfortunately, miniserv already defines an END function that is uses for

a different purpose .. Is it possible to have more than one though, in different
packages?

  - Jamie