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annotate rogue5/daemon.c @ 175:10c273a62228

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srogue: remove md_droppriv() and md_resetpriv(). These partial privilege-dropping functions are no longer needed.
author John "Elwin" Edwards
date Sat, 01 Aug 2015 16:31:03 -0400
parents f502bf60e6e4
children
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33
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1 /*
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2 * Contains functions for dealing with things that happen in the
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3 * future.
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4 *
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5 * @(#)daemon.c 4.7 (Berkeley) 02/05/99
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6 *
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7 * Rogue: Exploring the Dungeons of Doom
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8 * Copyright (C) 1980-1983, 1985, 1999 Michael Toy, Ken Arnold and Glenn Wichman
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9 * All rights reserved.
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10 *
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11 * See the file LICENSE.TXT for full copyright and licensing information.
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12 */
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13
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14 #include <curses.h>
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15 #include "rogue.h"
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16
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17 #define DAEMON -1
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18
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19 /*
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20 * d_slot:
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21 * Find an empty slot in the daemon/fuse list
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22 */
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23 struct delayed_action *
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24 d_slot(void)
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25 {
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26 struct delayed_action *dev;
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27
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28 for (dev = d_list; dev <= &d_list[MAXDAEMONS-1]; dev++)
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29 if (dev->d_type == EMPTY)
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30 return dev;
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31 #ifdef MASTER
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32 debug("Ran out of fuse slots");
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33 #endif
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34 return NULL;
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35 }
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36
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37 /*
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38 * find_slot:
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39 * Find a particular slot in the table
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40 */
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41 struct delayed_action *
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42 find_slot(void (*func)())
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43 {
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44 struct delayed_action *dev;
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45
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46 for (dev = d_list; dev <= &d_list[MAXDAEMONS-1]; dev++)
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47 if (dev->d_type != EMPTY && func == dev->d_func)
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48 return dev;
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49 return NULL;
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50 }
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51
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52 /*
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53 * start_daemon:
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54 * Start a daemon, takes a function.
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55 */
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56 void
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57 start_daemon(void (*func)(), int arg, int type)
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58 {
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59 struct delayed_action *dev;
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60
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61 dev = d_slot();
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62 dev->d_type = type;
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63 dev->d_func = func;
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64 dev->d_arg = arg;
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65 dev->d_time = DAEMON;
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66 }
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67
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68 /*
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69 * kill_daemon:
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70 * Remove a daemon from the list
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71 */
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72 void
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73 kill_daemon(void (*func)())
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74 {
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75 struct delayed_action *dev;
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76
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77 if ((dev = find_slot(func)) == NULL)
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78 return;
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79 /*
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80 * Take it out of the list
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81 */
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82 dev->d_type = EMPTY;
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83 }
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84
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85 /*
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86 * do_daemons:
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87 * Run all the daemons that are active with the current flag,
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88 * passing the argument to the function.
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89 */
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90 void
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91 do_daemons(int flag)
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92 {
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93 struct delayed_action *dev;
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94
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95 /*
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96 * Loop through the devil list
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97 */
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98 for (dev = d_list; dev <= &d_list[MAXDAEMONS-1]; dev++)
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99 /*
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100 * Executing each one, giving it the proper arguments
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101 */
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102 if (dev->d_type == flag && dev->d_time == DAEMON)
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103 (*dev->d_func)(dev->d_arg);
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104 }
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105
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106 /*
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107 * fuse:
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108 * Start a fuse to go off in a certain number of turns
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