please help: signals, exceptions and g++

[Frank Ramsay]

I'm trying to write a signal handler that will convert the signal into a C++ 
style exception, but
I'm having a major problem, it doesn't seem to work.

Looking at the stack it seems that the fatal error is occuring in libstc++:
#0  0x006e3e31 in kill () from /lib/libc.so.6
#1  0x006e3b31 in raise () from /lib/libc.so.6
#2  0x006e4ebf in abort () from /lib/libc.so.6
#3  0x00b80467 in __cxa_call_unexpected () from /usr/lib/libstdc++.so.5
#4  0x00b804a4 in std::terminate() () from /usr/lib/libstdc++.so.5
#5  0x00b80616 in __cxa_throw () from /usr/lib/libstdc++.so.5
#6  0x080488f9 in sigpipeHandler(int) (x=13) at test.cpp:9
#7  <signal handler called>
#8  0x006e3e31 in kill () from /lib/libc.so.6
#9  0x006e3b31 in raise () from /lib/libc.so.6
#10 0x08048926 in main (argc=1, argv=0xbff67b34) at test.cpp:21

So here is my questions;
Is it possible to do this in a safe consistant maner?
And what am I doing wrong?

Any help would be greatly appreciated.

                                                                  -fjr

here is the code:

#include <stdio.h>
#include <iostream>
#include <csignal>

void sigpipeHandler(int x)
{
  signal(SIGPIPE, sigpipeHandler);  //reset the signal handler
  std::cerr << "throw: " << strsignal(x) << std::endl;
  throw strsignal(x);  //throw the exeption
}

int
main(int argc, char *argv[])
{
  int x;

  signal(SIGPIPE, sigpipeHandler);

  try
    {
      raise(SIGPIPE);
    }
  catch(const char *except)
    {
      std::cout << "catch: " << except << std::endl;
    }
  catch(...)
    {
      std::cout << "Exception" << std::endl;
    }

  std::cout << "done" << std::endl;;


  return 0;

}


--
Frank J. Ramsay
fjramsay1234 at hotmail.com

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