mirror of https://github.com/nealey/rogue
181 lines
3.2 KiB
C
181 lines
3.2 KiB
C
/*
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* Contains functions for dealing with things that happen in the
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* future.
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*
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* @(#)rread.c 4.7 (Berkeley) 02/05/99
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*/
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#include <curses.h>
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#include "netprot.h"
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#define EMPTY 0
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#define DAEMON -1
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#define MAXDAEMONS 20
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#define _X_ { EMPTY }
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struct delayed_action {
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int d_type;
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void (*d_func)(int);
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int d_arg;
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int d_time;
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} d_list[MAXDAEMONS] = {
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_X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_,
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_X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_,
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};
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/*
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* d_slot:
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* Find an empty slot in the daemon/fuse list
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*/
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struct delayed_action *
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d_slot(void)
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{
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struct delayed_action *dev;
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for (dev = d_list; dev < &d_list[MAXDAEMONS]; dev++)
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if (dev->d_type == EMPTY)
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return dev;
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#ifdef MASTER
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debug("Ran out of fuse slots");
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#endif
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return NULL;
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}
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/*
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* find_slot:
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* Find a particular slot in the table
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*/
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struct delayed_action *
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find_slot(void (*func)(int))
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{
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struct delayed_action *dev;
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for (dev = d_list; dev < &d_list[MAXDAEMONS]; dev++)
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if (dev->d_type != EMPTY && func == dev->d_func)
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return dev;
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return NULL;
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}
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/*
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* start_daemon:
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* Start a daemon, takes a function.
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*/
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void
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start_daemon(void (*func)(int), int arg, int type)
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{
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struct delayed_action *dev;
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dev = d_slot();
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dev->d_type = type;
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dev->d_func = func;
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dev->d_arg = arg;
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dev->d_time = DAEMON;
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}
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/*
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* kill_daemon:
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* Remove a daemon from the list
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*/
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void
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kill_daemon(void (*func)(int))
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{
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struct delayed_action *dev;
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if ((dev = find_slot(func)) == NULL)
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return;
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/*
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* Take it out of the list
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*/
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dev->d_type = EMPTY;
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}
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/*
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* do_daemons:
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* Run all the daemons that are active with the current flag,
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* passing the argument to the function.
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*/
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void
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do_daemons(int flag)
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{
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struct delayed_action *dev;
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/*
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* Loop through the devil list
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*/
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for (dev = d_list; dev < &d_list[MAXDAEMONS]; dev++)
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/*
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* Executing each one, giving it the proper arguments
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*/
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if (dev->d_type == flag && dev->d_time == DAEMON)
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(*dev->d_func)(dev->d_arg);
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}
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/*
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* fuse:
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* Start a fuse to go off in a certain number of turns
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*/
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void
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fuse(void (*func)(int), int arg, int tm, int type)
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{
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struct delayed_action *wire;
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wire = d_slot();
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wire->d_type = type;
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wire->d_func = func;
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wire->d_arg = arg;
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wire->d_time = tm;
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}
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/*
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* lengthen:
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* Increase the time until a fuse goes off
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*/
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void
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lengthen(void (*func)(int), int xtime)
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{
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struct delayed_action *wire;
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if ((wire = find_slot(func)) == NULL)
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return;
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wire->d_time += xtime;
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}
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/*
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* extinguish:
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* Put out a fuse
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*/
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void
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extinguish(void (*func)(int))
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{
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struct delayed_action *wire;
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if ((wire = find_slot(func)) == NULL)
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return;
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wire->d_type = EMPTY;
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}
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/*
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* do_fuses:
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* Decrement counters and start needed fuses
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*/
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void
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do_fuses(int flag)
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{
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struct delayed_action *wire;
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/*
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* Step though the list
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*/
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for (wire = d_list; wire < &d_list[MAXDAEMONS]; wire++)
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/*
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* Decrementing counters and starting things we want. We also need
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* to remove the fuse from the list once it has gone off.
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*/
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if (flag == wire->d_type && wire->d_time > 0 && --wire->d_time == 0)
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{
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wire->d_type = EMPTY;
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(*wire->d_func)(wire->d_arg);
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}
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}
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