Vikram Ranade <[EMAIL PROTECTED]> writes:
>
> Umm....Lock files??? any chance that you could elaborate on that?
> Thanks!
> Vikram
>
[...]
Hi Vikram,
By that, Kapil meant using zero sized files as locks, implemented as:
When ever the program starts
. look for a particular file (say one.lock) in a particular location (say /tmp)
. if it exists, it implies the software is already in use
. if it doesn't, implies this is the first instance
. create the predefined lock file (0 bytes) at the predefined location
. while exiting the program, remove this lock file.
So, in effect, the existance of the file implies whether the software is in use
or not and you can take a decision based on that (may be abort loading another
instance)
HTH
-js
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