Try for x seconds, then leave?

Is it po开发者_如何学编程ssible to write in C++ try,catch statement with timer in that way that if function is not able to be executed (it's stuck) program just continues?

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Yes, you could do this with, for example, Boost.Thread.

Look especially at the timed_join function.

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The most robust approach is to perform the work in a sub-process, wait for the sub-process with a timeout, then kill it.

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KISS:

clock_t start = clock();
const int max_try_clocks = 5 * CLOCKS_PER_SEC; // 5 is the number of seconds 
                                               // we should keep trying for
try_again:
  try {
    // whatever you need to try
  } catch (...) {
    if (clock() - start < max_try_clocks)
      goto try_again;
  }