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annotate rogue3/daemon.c @ 165:2d94c32a709e

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arogue7: comment out a problematic message. This line causes a segfault on x64. I suspect one of the char* arguments to msg() is being corrupted. But gdb doesn't make it easy to debug variadic functions, and the crash doesn't occur when running under valgrind. So the message is being removed until I can discover the root of the problem.
author John "Elwin" Edwards
date Fri, 26 Jun 2015 11:32:37 -0400
parents 527e2150eaf0
children
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 3.3 (Berkeley) 6/15/81
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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 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 #define MAXDAEMONS 20
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20
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21 #define _X_ { EMPTY }
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22
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23 struct delayed_action d_list[MAXDAEMONS] = {
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24 _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_,
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25 _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_,
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26 };
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27
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28 /*
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29 * d_slot:
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30 * Find an empty slot in the daemon/fuse list
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31 */
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32 struct delayed_action *
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33 d_slot()
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34 {
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35 register int i;
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36 register struct delayed_action *dev;
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37
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38 for (i = 0, dev = d_list; i < MAXDAEMONS; i++, dev++)
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39 if (dev->d_type == EMPTY)
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40 return dev;
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41 debug("Ran out of fuse slots");
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42 return NULL;
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43 }
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44
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45 /*
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46 * find_slot:
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47 * Find a particular slot in the table
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48 */
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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 * daemon:
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64 * Start a daemon, takes a function.
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65 */
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66
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67 void
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68 start_daemon(void (*func)(), int arg, int 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
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74 if (dev != NULL)
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75 {
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76 dev->d_type = type;
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77 dev->d_func = func;
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78 dev->d_arg = arg;
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79 dev->d_time = DAEMON;
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80 }
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81 }
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82
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83 /*
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84 * kill_daemon:
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85 * Remove a daemon from the list
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86 */
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87
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88 void
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89 kill_daemon(void (*func)())
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90 {
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91 register struct delayed_action *dev;
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92
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93 if ((dev = find_slot(func)) == NULL)
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94 return;
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95 /*
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96 * Take it out of the list
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97 */
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98 dev->d_type = EMPTY;
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99 }
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100
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101 /*
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102 * do_daemons:
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103 * Run all the daemons that are active with the current flag,
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104 * passing the argument to the function.
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105 */
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106