Passing parameters to the CR Callback function.

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From: Karthik Gopalakrishnan (gopalakk_at_cse.ohio-state.edu)
Date: Thu Mar 05 2009 - 09:56:29 PST

  • Next message: Paul H. Hargrove: "Re: Passing parameters to the CR Callback function." 
    Hi Paul.

I see that the CR Callback function can accept one  void * argument.
However, I don't see a 'proper' way to pass data to my application's
callback function when I do a 'cr_checkpoint'. It will be nice if I
could do a 'cr_checkpoint [options] ID arg1 arg2 ... argN' with
arg[1..N] being passed to the registered callbacks, maybe as 'char
**args' & args[N] = NULL. The definition of the callback could be
changed to "typedef int (*cr_callback_t)(char **, void *)". I admit I
have not thought this through, but I feel something like this will be
pretty useful.

Currently, I have a wrapper that writes the parameters to some tmp
file before calling cr_checkpoint and I get my callback function to
read the arguments off that file. I'll be grateful if you could
suggest a better way for me to achieve this, in the current scenario.

Thanks & Regards,
Karthik
  • Next message: Paul H. Hargrove: "Re: Passing parameters to the CR Callback function."
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