Mercurial > hg > early-roguelike
view srogue/daemon.c @ 162:600873555ec0
Don't swap signal handlers in md_shellescape().
md_shellescape() sets SIGINT and SIGQUIT to be ignored, storing the
previous handlers, and restores them after the shell exits. But it
mixed up the two handlers.
Since the signals were usually handled by the same function, this fix
doesn't have much effect, but anything that makes signal code less
confusing is a good thing.
author | John "Elwin" Edwards |
---|---|
date | Mon, 08 Jun 2015 10:01:25 -0400 |
parents | d6b7c3fb37ea |
children | 94a0d9dd5ce1 |
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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()); }