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annotate rogue4/daemon.c @ 296:000b1c5b8d63

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UltraRogue: fix inventory collision after save and restore. Inventory letters are based on "identifiers" stored in objects' o_ident field. Identifiers are allocated by get_ident(), which keeps a list of objects that have them, to avoid giving the same identifier to multiple objects. The list is not stored in the savefile, so after restore, get_ident() was not aware of existing identifiers. This resulted in picked-up objects having the same inventory letters as objects restored from the file. The restore code now adds all objects with identifiers to the list.
author John "Elwin" Edwards
date Mon, 15 Jan 2018 20:20:35 -0500
parents b67b99f6c92b
children
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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(void)
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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(void (*func)())
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52 {
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53 register int i;
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54 register struct delayed_action *dev;
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55
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56 for (i = 0, dev = d_list; i < MAXDAEMONS; i++, dev++)
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57 if (dev->d_type != EMPTY && func == dev->d_func)
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58 return dev;
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59 return NULL;
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60 }
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61
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62 /*
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63 * start_daemon:
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64 * Start a daemon, takes a function.
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65 */
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66 void
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67 start_daemon(void (*func)(), int arg, int type)
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68 {
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69 register struct delayed_action *dev;
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70
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71 dev = d_slot();
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72 dev->d_type = type;
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73 dev->d_func = func;
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74 dev->d_arg = arg;
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75 dev->d_time = DAEMON;
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76 }
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77
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78 /*
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79 * kill_daemon:
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80 * Remove a daemon from the list
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81 */
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82 void
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83 kill_daemon(void (*func)())
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84 {
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85 register struct delayed_action *dev;
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86
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87 if ((dev = find_slot(func)) == NULL)
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88 return;
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89 /*
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90 * Take it out of the list
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91 */
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92 dev->d_type = EMPTY;
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93 }
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94
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95 /*
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96 * do_daemons:
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97 * Run all the daemons that are active with the current flag,
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98 * passing the argument to the function.
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99 */
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100 void
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101 do_daemons(int flag)
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