include/sighandler.h

   1 /*
   2  *
   3  *                This source code is part of
   4  *
   5  *                 G   R   O   M   A   C   S
   6  *
   7  *          GROningen MAchine for Chemical Simulations
   8  *
   9  *                        VERSION 3.2.0
  10  * Written by David van der Spoel, Erik Lindahl, Berk Hess, and others.
  11  * Copyright (c) 1991-2000, University of Groningen, The Netherlands.
  12  * Copyright (c) 2001-2004, The GROMACS development team,
  13  * check out http://www.gromacs.org for more information.
  14
  15  * This program is free software; you can redistribute it and/or
  16  * modify it under the terms of the GNU General Public License
  17  * as published by the Free Software Foundation; either version 2
  18  * of the License, or (at your option) any later version.
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  35
  36 #ifndef _sighandler_h
  37 #define _sighandler_h
  38
  39 #ifdef HAVE_CONFIG_H
  40 #include <config.h>
  41 #endif
  42
  43 #include <signal.h>
  44
  45 #ifdef __cplusplus
  46 extern "C" {
  47 #endif
  48
  49 /* The following two variables and the signal_handler function
  50  * are used from md.c and pme.c as well
  51  *
  52  * Do not fear these global variables: they represent inherently process-global
  53  * information that needs to be shared across threads
  54  */
  55
  56
  57 /* we got a signal to stop in the next step: */
  58 extern volatile sig_atomic_t bGotStopNextStepSignal;
  59 /* we got a signal to stop in the next neighbour search step: */
  60 extern volatile sig_atomic_t bGotStopNextNSStepSignal;
  61
  62 /* our names for the handled signals. These must match the number given
  63    in signal_handler.*/
  64 extern const char *signal_name[];
  65 /* the last signal received, according to the numbering
  66    we use in signal_name. Is set to -1 if no signal has (yet)
  67    been  received */
  68 extern volatile sig_atomic_t last_signal_number_recvd;
  69
  70
  71 /* prototype for the signal handler */
  72 extern RETSIGTYPE signal_handler(int n);
  73
  74 /* install the signal handlers */
  75 void signal_handler_install(void);
  76
  77 #ifdef __cplusplus
  78 }
  79 #endif
  80
  81
  82 #endif  /* _sighandler_h */