File: handler.c

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siege 2.66-2
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/**
 * Signal Handling
 *
 * Copyright (C) 2000-2007 by
 * Jeffrey Fulmer - <jeff@joedog.org>, et al. 
 * This file is distributed as part of Siege 
 *
 * 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; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 * --
 *
 */
#ifdef  HAVE_CONFIG_H
# include <config.h>
#endif/*HAVE_CONFIG_H*/

#ifdef  HAVE_PTHREAD_H
# include <pthread.h>
#endif/*HAVE_PTHREAD_H*/ 

#include <setup.h>
#include <handler.h> 
#include <util.h>
#include <crew.h>
#include <joedog/boolean.h>

void
spin_doctor(CREW crew)
{
  long x;
  char h[4] = {'-','\\','|','/'};

  if(my.spinner==FALSE){
    return;
  }

  for(x = 0; crew_get_total(crew) > 1 || x < 55; x++){
    fflush(stderr);
    fprintf(stderr,"%c", h[x%4]);
    pthread_usleep_np(20000);
    fprintf(stderr, "\b"); 
  }
  return;
}

void 
sig_handler(CREW crew)
{
  int gotsig = 0; 
  sigset_t  sigs;
#if defined (hpux) || defined(__hpux)
#else
  int result;
  pthread_t spinner;
#endif 
 
  sigemptyset(&sigs);
  sigaddset(&sigs, SIGHUP);
  sigaddset(&sigs, SIGINT);
  sigaddset(&sigs, SIGTERM);
  sigprocmask(SIG_BLOCK, &sigs, NULL);

  /** 
   * Now wait around for something to happen ... 
   */
  sigwait(&sigs, &gotsig);
  my.verbose = FALSE;
  fprintf(stderr, "\nLifting the server siege..."); 
  crew_set_shutdown(crew, TRUE);

#if defined (hpux) || defined(__hpux)
#else
  if((result = pthread_create(&spinner, NULL, (void*)spin_doctor, crew)) < 0){
    joe_error("failed to create handler: %d\n", result);
  }   
#endif

  /**
   * The signal consistently arrives early,
   * so we artificially extend the life of
   * the siege to make up the discrepancy. 
   */
  pthread_usleep_np(501125); 

  crew_cancel(crew);

#if defined(hpux) || defined(__hpux)
#else
  pthread_join(spinner, NULL);
#endif

  pthread_exit(NULL);
}