view srogue/daemon.c @ 221:71cb5b647f2b

Rogue V5: remove troublesome automatic platform detection. configure.ac used AC_CANONICAL_SYSTEM to guess the GNU system description triplets. The target description was substituted into the Makefile and formatted into the filename for the binary distribution tarball. But 'target' is only intended for cross-compilers. 'host_os' might have been a better choice. The tarball filename can still be changed manually, by running make with an argument of 'DESTSYS=systemname'. Cross-compiling may be more difficult now, but I am not certain that it worked properly previously, and due to pending autoconf changes, it was likely to break anyway. The top-level config.guess and config.sub are no longer needed, but they may reappear if better support for cross-compilation is added.
author John "Elwin" Edwards
date Fri, 12 Feb 2016 14:25:47 -0500
parents d6b7c3fb37ea
children 94a0d9dd5ce1
line wrap: on
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/*
 * Contains functions for dealing with things that
 * happen in the future.
 *
 * @(#)daemon.c	9.0	(rdk)	 7/17/84
 *
 * Super-Rogue
 * Copyright (C) 1984 Robert D. Kindelberger
 * All rights reserved.
 *
 * Based on "Rogue: Exploring the Dungeons of Doom"
 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
 * All rights reserved.
 *
 * See the file LICENSE.TXT for full copyright and licensing information.
 */

#include "rogue.h"
#include "rogue.ext"

#define EMPTY 0
#define DAEMON -1

#define _X_ { 0, 0, 0, 0 }

struct delayed_action d_list[MAXDAEMONS] = {
	_X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_,
	_X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_,
};


/*
 * d_insert:
 *	Insert a function in the daemon list.
 */
struct delayed_action *
d_insert(func, arg, type, time)
int arg, type, time, (*func)();
{
	reg struct delayed_action *dev;

	if (demoncnt < MAXDAEMONS) {
		dev = &d_list[demoncnt];
		dev->d_type = type;
		dev->d_time = time;
		dev->d_func = func;
		dev->d_arg = arg;
		demoncnt += 1;
		return dev;
	}
	return NULL;
}

d_delete(wire)
struct delayed_action *wire;
{
	reg struct delayed_action *d1, *d2;

	for (d1 = d_list; d1 < &d_list[demoncnt]; d1++) {
		if (wire == d1) {
			for (d2 = d1 + 1; d2 < &d_list[demoncnt]; d2++)
				*d1++ = *d2;
			demoncnt -= 1;
			d1 = &d_list[demoncnt];
			d1->d_type = EMPTY;
			d1->d_func = EMPTY;
			return;
		}
	}
}
/*
 * find_slot:
 *	Find a particular slot in the table
 */
struct delayed_action *
find_slot(func)
int (*func)();
{
	reg struct delayed_action *dev;

	for (dev = d_list; dev < &d_list[demoncnt]; dev++)
		if (dev->d_type != EMPTY && func == dev->d_func)
			return dev;
	return NULL;
}

/*
 * start_daemon:
 *	Start a daemon, takes a function.
 */
start_daemon(func, arg, type)
int arg, type, (*func)();
{
	d_insert(func, arg, type, DAEMON);
}

/*
 * do_daemons:
 *	Run all the daemons that are active with the current
 *	flag, passing the argument to the function.
 */
do_daemons(flag)
int flag;
{
	reg struct delayed_action *dev;

	for (dev = d_list; dev < &d_list[demoncnt]; dev++)
		if (dev->d_type == flag && dev->d_time == DAEMON)
			(*dev->d_func)(dev->d_arg);
}

/*
 * fuse:
 *	Start a fuse to go off in a certain number of turns
 */
fuse(func, arg, time)
int (*func)(), arg, time;
{
	d_insert(func, arg, AFTER, time);
}

/*
 * lengthen:
 *	Increase the time until a fuse goes off
 */
lengthen(func, xtime)
int (*func)(), xtime;
{
	reg struct delayed_action *wire;

	for (wire = d_list; wire < &d_list[demoncnt]; wire++)
		if (wire->d_type != EMPTY && func == wire->d_func)
			wire->d_time += xtime;
}

/*
 * extinguish:
 *	Put out a fuse. Find all such fuses and kill them.
 */
extinguish(func)
int (*func)();
{
	reg struct delayed_action *dev;

	for (dev = d_list; dev < &d_list[demoncnt]; dev++)
		if (dev->d_type != EMPTY && func == dev->d_func)
			d_delete(dev);
}

/*
 * do_fuses:
 *	Decrement counters and start needed fuses
 */
do_fuses()
{
	reg struct delayed_action *dev;

	for (dev = d_list; dev < &d_list[demoncnt]; dev++) {
		if (dev->d_type == AFTER && dev->d_time > DAEMON) {
			if (--dev->d_time == 0) {
				(*dev->d_func)(dev->d_arg);
				d_delete(dev);
			}
		}
	}
}


/*
 * activity:
 *	Show wizard number of demaons and memory blocks used
 */
activity()
{
	msg("Daemons = %d : Memory Items = %d : Memory Used = %d",
	    demoncnt,total,md_memused());
}