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1085 | 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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1550 | pj | 21 | CVS : $Id: ptest4.c,v 1.4 2005-01-08 14:36:11 pj Exp $ |
1085 | pj | 22 | |
23 | File: $File$ |
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1550 | pj | 24 | Revision: $Revision: 1.4 $ |
25 | Last update: $Date: 2005-01-08 14:36:11 $ |
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1085 | pj | 26 | ------------ |
27 | |||
28 | Posix test 4: |
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29 | |||
30 | the main task create 3 tasks, J1, J2, J3 |
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31 | at t = 1 sec. it raise a signal to J1 |
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32 | at t = 2 sec. it kills J2 |
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33 | |||
34 | J1,J2,J3: it simply calls nanosleep |
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35 | |||
36 | non standard function used: |
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37 | cprintf |
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38 | sys_gettime |
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39 | keyboard stuffs |
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40 | |||
41 | **/ |
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42 | |||
43 | /* |
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44 | * Copyright (C) 2000 Paolo Gai |
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45 | * |
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46 | * This program is free software; you can redistribute it and/or modify |
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47 | * it under the terms of the GNU General Public License as published by |
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48 | * the Free Software Foundation; either version 2 of the License, or |
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49 | * (at your option) any later version. |
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50 | * |
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51 | * This program is distributed in the hope that it will be useful, |
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52 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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53 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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54 | * GNU General Public License for more details. |
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55 | * |
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56 | * You should have received a copy of the GNU General Public License |
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57 | * along with this program; if not, write to the Free Software |
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58 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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59 | * |
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60 | */ |
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61 | |||
62 | #include <sys/types.h> |
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63 | #include <pthread.h> |
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64 | #include <signal.h> |
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65 | #include <time.h> |
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66 | |||
67 | #include <kernel/kern.h> |
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68 | |||
69 | void uscitaJ(void *arg) |
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70 | { |
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71 | cprintf("J: (pid=%d) AAAARRRRGGGHHH!!! killed by someone...\n", exec_shadow); |
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72 | } |
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73 | |||
74 | void *J(void *arg) |
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75 | { |
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76 | struct timespec t1, t2; |
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77 | int err; |
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78 | |||
79 | cprintf("J (pid=%d) starts and call nanosleep\n",exec_shadow); |
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80 | |||
81 | t1.tv_sec = 3; |
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82 | t1.tv_nsec = 0; |
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83 | NULL_TIMESPEC(&t2); |
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84 | pthread_cleanup_push(uscitaJ,NULL); |
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85 | err = nanosleep(&t1, &t2); |
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86 | pthread_cleanup_pop(0); |
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87 | |||
88 | cprintf("J (pid=%d) ending, nanosleep returns errno=%d, t2=%ld.%ld\n", |
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89 | exec_shadow, err, t2.tv_sec, t2.tv_nsec/1000); |
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90 | |||
91 | return 0; |
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92 | } |
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93 | |||
94 | void signal_handler(int signo, siginfo_t *info, void *extra) |
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95 | { |
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96 | cprintf("SIGNAL HANDLER: pid=%d\n",exec_shadow); |
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97 | } |
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98 | |||
99 | |||
100 | int main(int argc, char **argv) |
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101 | { |
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102 | int err; |
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103 | pthread_t j1, j2, j3; |
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104 | struct sigaction sig_act; |
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105 | |||
106 | sig_act.sa_sigaction = (void *) signal_handler; |
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107 | sig_act.sa_flags = SA_SIGINFO; |
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108 | sigemptyset(&sig_act.sa_mask); |
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109 | |||
110 | sigaction(31, &sig_act, NULL); |
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111 | |||
112 | cprintf("main: creating J1\n"); |
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113 | err = pthread_create(&j1, NULL, J, NULL); |
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114 | if (err) cprintf("Error creating J1\n"); |
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115 | |||
116 | cprintf("main: creating J2\n"); |
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117 | err = pthread_create(&j2, NULL, J, NULL); |
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118 | if (err) cprintf("Error creating J2\n"); |
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119 | |||
120 | cprintf("main: creating J3\n"); |
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121 | err = pthread_create(&j3, NULL, J, NULL); |
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122 | if (err) cprintf("Error creating J3\n"); |
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123 | |||
124 | cprintf("main: waiting 1 sec\n"); |
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125 | while (sys_gettime(NULL) < 1000000); |
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126 | |||
127 | cprintf("main: pthread_kill on j1, then wait until t=2 sec \n"); |
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128 | pthread_kill(j1, 31); |
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129 | |||
130 | while (sys_gettime(NULL) < 2000000); |
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131 | cprintf("main: pthread_cancel(J2)\n"); |
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132 | pthread_cancel(j2); |
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133 | |||
134 | cprintf("main: ending...\n"); |
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135 | |||
136 | return 0; |
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137 | } |