text: /* Copyright (C) 2000 MySQL AB
  
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; version 2 of the License.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program; if not, write to the Free Software
     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
  
  /* Dont let the user break when you are doing something important */
  /* Remembers if it got 'SIGINT' and executes it on allow_break */
  /* A static buffer is used; don't call dont_break() twice in a row */
  
  #include "mysys_priv.h"
  #include "my_static.h"
  
  	/* Set variable that we can't break */
  
  #if !defined(THREAD)
  void dont_break(void)
  {
    my_dont_interrupt=1;
    return;
  } /* dont_break */
  
  void allow_break(void)
  {
    {
      reg1 int index;
  
      my_dont_interrupt=0;
      if (_my_signals)
      {
        if (_my_signals > MAX_SIGNALS)
  	_my_signals=MAX_SIGNALS;
        for (index=0 ; index < _my_signals ; index++)
        {
  	if (_my_sig_remember[index].func)			/* Safequard */
  	{
  	  (*_my_sig_remember[index].func)(_my_sig_remember[index].number);
  	  _my_sig_remember[index].func=0;
  	}
        }
        _my_signals=0;
      }
    }
  } /* dont_break */
  #endif
  
  	/* Set old status */
  
  #if !defined(THREAD)
  void my_remember_signal(int signal_number, sig_handler (*func) (int))
  {
  #ifndef __WIN__
    reg1 int index;
  
    index=_my_signals++;			/* Nobody can break a ++ ? */
    if (index < MAX_SIGNALS)
    {
      _my_sig_remember[index].number=signal_number;
      _my_sig_remember[index].func=func;
    }
  #endif /* __WIN__ */
  } /* my_remember_signal */
  #endif /* THREAD */
  