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annotate rogue4/daemon.c @ 182:1fe660009fd3

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rogue4: don't try to close the scorefile if it isn't open. The MSVC library uses a debug assertion to prevent closing file descriptors that are negative. This is always the case with the scoreboard file descriptor if the scoreboard has been compiled out.
author John "Elwin" Edwards
date Fri, 31 Jul 2015 20:12:33 -0400
parents f2951c4e28d9
children 1b73a8641b37
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 4.4 (Berkeley) 1/12/82
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6 *
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7 * Rogue: Exploring the Dungeons of Doom
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8 * Copyright (C) 1980, 1981, 1982 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 EMPTY 0
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18 #define DAEMON -1
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19
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20 #define _X_ { EMPTY }
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21
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22 struct delayed_action d_list[MAXDAEMONS] = {
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23 _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_,
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24 _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_,
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25 };
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26
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27 /*
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28 * d_slot:
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29 * Find an empty slot in the daemon/fuse list
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30 */
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31 struct delayed_action *
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32 d_slot()
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33 {
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34 register int i;
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35 register struct delayed_action *dev;
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36
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37 for (i = 0, dev = d_list; i < MAXDAEMONS; i++, dev++)
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38 if (dev->d_type == EMPTY)
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39 return dev;
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40 #ifdef WIZARD
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41 debug("Ran out of fuse slots");
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42 #endif
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43 return NULL;
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44 }
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45
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46 /*
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47 * find_slot:
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48 * Find a particular slot in the table
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49 */
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50 struct delayed_action *
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51 find_slot(func)
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52 register int (*func)();
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53 {
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54 register int i;
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55 register struct delayed_action *dev;
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56
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57 for (i = 0, dev = d_list; i < MAXDAEMONS; i++, dev++)
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58 if (dev->d_type != EMPTY && func == dev->d_func)
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59 return dev;
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60 return NULL;
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61 }
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62
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63 /*
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64 * start_daemon:
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65 * Start a daemon, takes a function.
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66 */
107
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67 start_daemon(func, arg, type)
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68 int (*func)(), arg, type;
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69 {
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70 register struct delayed_action *dev;
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71
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72 dev = d_slot();
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73 dev->d_type = type;
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74 dev->d_func = func;
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75 dev->d_arg = arg;
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76 dev->d_time = DAEMON;
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77 }
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78
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79 /*
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80 * kill_daemon:
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81 * Remove a daemon from the list
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82 */
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83 kill_daemon(func)
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84 int (*func)();
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85 {
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86 register struct delayed_action *dev;
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87
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88 if ((dev = find_slot(func)) == NULL)
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89 return;
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90 /*
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91 * Take it out of the list
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92 */
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93 dev->d_type = EMPTY;
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94 }
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95
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96 /*
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97 * do_daemons:
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98 * Run all the daemons that are active with the current flag,
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99 * passing the argument to the function.
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100 */
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101 do_daemons(flag)
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102 register int flag;
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103 {
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104 register struct delayed_action *dev;
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105