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1099 | pj | 1 | /* |
2 | * Project: S.Ha.R.K. |
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3 | * |
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4 | * Coordinators: |
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5 | * Giorgio Buttazzo <giorgio@sssup.it> |
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6 | * Paolo Gai <pj@gandalf.sssup.it> |
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7 | * |
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8 | * Authors : |
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9 | * Paolo Gai <pj@gandalf.sssup.it> |
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10 | * (see the web pages for full authors list) |
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11 | * |
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12 | * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
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13 | * |
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14 | * http://www.sssup.it |
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15 | * http://retis.sssup.it |
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16 | * http://shark.sssup.it |
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17 | */ |
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18 | |||
19 | /** |
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20 | ------------ |
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21 | CVS : $Id: sig.c,v 1.1 2002-10-28 08:13:37 pj Exp $ |
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22 | |||
23 | File: $File$ |
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24 | Revision: $Revision: 1.1 $ |
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25 | Last update: $Date: 2002-10-28 08:13:37 $ |
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26 | ------------ |
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27 | **/ |
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28 | |||
29 | /* |
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30 | * Copyright (C) 2000 Paolo Gai and Giorgio Buttazzo |
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31 | * |
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32 | * This program is free software; you can redistribute it and/or modify |
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33 | * it under the terms of the GNU General Public License as published by |
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34 | * the Free Software Foundation; either version 2 of the License, or |
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35 | * (at your option) any later version. |
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36 | * |
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37 | * This program is distributed in the hope that it will be useful, |
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38 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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39 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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40 | * GNU General Public License for more details. |
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41 | * |
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42 | * You should have received a copy of the GNU General Public License |
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43 | * along with this program; if not, write to the Free Software |
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44 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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45 | * |
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46 | */ |
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47 | |||
48 | /* |
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49 | Test Number 5: |
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50 | |||
51 | this test is a simple main() function with one other task |
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52 | |||
53 | This test can be useful to test functions like: |
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54 | |||
55 | sys_gettime |
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56 | sigemptyset |
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57 | sigaddset |
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58 | hartik_deliver_pending_signals |
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59 | sys_end |
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60 | task_sigmask |
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61 | sigaction |
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62 | sigqueue |
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63 | task_signal |
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64 | */ |
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65 | |||
66 | #include "kernel/kern.h" |
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67 | |||
68 | |||
69 | TASK goofy(void *arg) |
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70 | { |
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71 | struct timespec t; |
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72 | |||
73 | cprintf("Goofy: waiting 2 secs...\n"); |
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74 | |||
75 | do { |
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76 | sys_gettime(&t); |
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77 | } while (t.tv_sec < 2); // wait until 2 sec |
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78 | |||
79 | cprintf("Goofy: ok, I'm ready :-)\n"); |
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80 | |||
81 | return 0; |
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82 | } |
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83 | |||
84 | void catchit(int signo, siginfo_t *info, void *extra) |
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85 | { |
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86 | cprintf("Current Running Task = %d signo=%d code=%d value=%d from pid=%d\n", |
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87 | exec_shadow, |
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88 | info->si_signo, info->si_code, |
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89 | info->si_value.sival_int, info->si_task); |
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90 | } |
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91 | |||
92 | |||
93 | int main(int argc, char **argv) |
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94 | { |
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95 | struct timespec t; |
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96 | NRT_TASK_MODEL m; |
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97 | PID p2; |
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98 | |||
99 | sigset_t newmask; |
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100 | sigset_t oldmask; |
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101 | struct sigaction action; |
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102 | union sigval sval; |
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103 | |||
104 | clear(); |
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105 | |||
106 | /* Set the signal action */ |
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107 | action.sa_flags = SA_SIGINFO; |
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108 | action.sa_sigaction = catchit; |
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109 | action.sa_handler = 0; |
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110 | action.sa_mask = 0; |
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111 | |||
112 | if (sigaction(SIGUSR1, &action, NULL) == -1) { |
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113 | perror("Error using sigaction."); |
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114 | return -1; |
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115 | } |
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116 | |||
117 | action.sa_flags = 0; |
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118 | action.sa_handler = catchit; |
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119 | |||
120 | if (sigaction(SIGILL, &action, NULL) == -1) { |
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121 | perror("Error using sigaction."); |
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122 | return -1; |
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123 | } |
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124 | |||
125 | /* create another task */ |
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126 | nrt_task_default_model(m); |
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127 | nrt_task_def_group(m,1); |
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128 | |||
129 | p2 = task_create("goofy", goofy, &m, NULL); |
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130 | if (p2 == NIL) |
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131 | { |
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132 | cprintf("Can't create goofy task...\n"); |
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133 | return 1; |
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134 | } |
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135 | |||
136 | group_activate(1); |
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137 | |||
138 | /* block the signal for the main task */ |
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139 | sigemptyset(&newmask); |
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140 | sigaddset(&newmask,SIGUSR1); |
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141 | task_sigmask(SIG_BLOCK, &newmask, &oldmask); // pthread_sigmask |
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142 | |||
143 | cprintf("main: Sending 2 signals ...\n"); |
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144 | |||
145 | sval.sival_int = 123; |
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146 | sigqueue(0,SIGUSR1,sval); |
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147 | sval.sival_int = 999; |
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148 | sigqueue(0,SIGUSR1,sval); |
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149 | |||
150 | cprintf("main: Now sending a signal to myself," |
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151 | " then wait until 4 secs...\n"); |
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152 | |||
153 | task_signal(0 /* main */, SIGILL); // pthread_kill |
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154 | |||
155 | NULL_TIMESPEC(&t); |
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156 | do { |
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157 | sys_gettime(&t); |
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158 | } while (t.tv_sec < 4); // wait until 4 s |
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159 | |||
160 | cprintf("main: ending...\n"); |
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161 | |||
162 | return 0; |
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163 | } |