08-06-2009
Thank you all Corona688 and matrixmadhan for your replies,
Because I have 2 applications and need to make communication via files and signal.
The first application shall write some files then send a signal to the second application telling the second to processes and then delete those files.
The problem is that, when the second is processing those files, the first one may throw new files and signal (the goal is the second gets latest data); therefore the second might delete new files which leads to lost of data or to be consistent.
So I hope that, I could, when a signal comes the second restarts processing those files (and discard instructions from previous signal action). I know this is not nature of signal handling.
(I know that I can make it synchronously by making the second send back a signal to the first to tell that it is ready to receive new signal, for example).
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