/*
*******************************************************************************
*  Copyright (c) 1997 Martin Poole                            *
*******************************************************************************
**
** WARNING !!  WARNING !! WARNING !! WARNING !! WARNING !! WARNING !!
**
** Any changes to be made to this file should first be checked with
** mplib1 source control for library integrity.
**
** mplib1 source control can be reached at  mplib1@quatermass.co.uk
** 
*
*  $Source: /home/cvs/cvsroot/onelan/onelan/src/mplib1/libsrc/daemonloop.c,v $
*  $Author: mpoole $
*  $Date: 2002/10/07 09:37:38 $
*  $Revision: 1.2 $
*  Purpose        :
*
*******************************************************************************
*
* Change History
*
* $Log: daemonloop.c,v $
* Revision 1.2  2002/10/07 09:37:38  mpoole
* Initial checkin of mplib1-3.1.0
*
* Revision 1.1  2002/10/07 09:36:55  mpoole
* Initial checkin of mplib1-3.1.0
*
*
*******************************************************************************
*/

#ident "$Header: /home/cvs/cvsroot/onelan/onelan/src/mplib1/libsrc/daemonloop.c,v 1.2 2002/10/07 09:37:38 mpoole Exp $"

/* ------------------------------------------------------------------
    Include files
   ------------------------------------------------------------------ */

#include <stdio.h>
#include <sys/types.h>
#include <signal.h>

#include <mplib1/cfg_file.h>
#include <mplib1/daemon.h>

/* ------------------------------------------------------------------
    structures / defines
   ------------------------------------------------------------------ */

/* ------------------------------------------------------------------
    Code starts here
   ------------------------------------------------------------------ */

int
mp_daemon_loop( int(*poll_func)(int),
		int(*u1_func)(int),
		int(*u2_func)(int),
		int(*int_func)(int),
		int(*term_func)(int),
		int flags )
{
    int rv=0,t,poll_period;
    /* This function provides a standard daemon loop.
       It sleeps for the specified period (unless awoken early),
       and then calls the relevant dispatch function.
       Any dispatch function that returns non-zero causes the loop
       to exit. The dispatch function called will have two parameters.
       The first if the signal that caused the call (or zero), the
       second, the return value from the sleep call
    */
    do
    {
	poll_period = get_config_int( "POLL_PERIOD" );
	if (poll_period<1)
	    poll_period=60;
	switch(t=check_signalling())
	{
	case SIGINT :
	    if (int_func)
		rv = (*int_func)( t );
	    else
		rv = t;
	    break;
	case SIGTERM :
	    if (term_func)
		rv = (*term_func)( t );
	    else
		rv = t;
	    break;
	case SIGUSR1 :
	    if (u1_func)
		rv = (*u1_func)( t );
	    else
		rv = 0;
	    break;
	case SIGUSR2 :
	    if (u2_func)
		rv = (*u2_func)( t );
	    else
		rv = 0;
	    break;
	case SIGHUP :
	    restart_files();
	    break;
	default :
	    rv = poll_func( 0 );
	    break;
	}
	if (rv==0)
	    t = mp_daemon_sleep( poll_period );

    }while (rv==0);
    return(rv);
}


/* -- End of File -- */