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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: ptest2.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 2: |
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| 29 | |||
| 30 | pthread_once + thread_specific_data |
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| 31 | |||
| 32 | the main task: |
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| 33 | creates a key |
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| 34 | creates 2 tasks, J1, J2 |
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| 35 | at t = 0.4 sec. it kills J1 and J2 |
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| 36 | |||
| 37 | J1 and J2 will set and check the thread specific data |
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| 38 | and when the die, a destructor is called (twice, because the value |
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| 39 | is not set to null...) |
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| 40 | |||
| 41 | non standard function used: |
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| 42 | cprintf |
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| 43 | sys_gettime |
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| 44 | keyboard stuffs |
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| 45 | **/ |
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| 46 | |||
| 47 | /* |
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| 48 | * Copyright (C) 2000 Paolo Gai |
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| 49 | * |
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| 50 | * This program is free software; you can redistribute it and/or modify |
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| 51 | * it under the terms of the GNU General Public License as published by |
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| 52 | * the Free Software Foundation; either version 2 of the License, or |
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| 53 | * (at your option) any later version. |
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| 54 | * |
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| 55 | * This program is distributed in the hope that it will be useful, |
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| 56 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 57 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 58 | * GNU General Public License for more details. |
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| 59 | * |
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| 60 | * You should have received a copy of the GNU General Public License |
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| 61 | * along with this program; if not, write to the Free Software |
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| 62 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 63 | * |
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| 64 | */ |
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| 65 | |||
| 66 | #include <sys/types.h> |
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| 67 | #include <pthread.h> |
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| 68 | |||
| 69 | #include <kernel/kern.h> |
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| 70 | |||
| 71 | pthread_key_t prova_key; |
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| 72 | |||
| 73 | pthread_once_t once = PTHREAD_ONCE_INIT; |
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| 74 | |||
| 75 | void once_init() |
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| 76 | { |
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| 77 | cprintf("ONCE: (pid=%d)\n", exec_shadow); |
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| 78 | } |
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| 79 | |||
| 80 | void destr_key(void *arg) |
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| 81 | { |
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| 82 | cprintf("J (pid=%d) destructor called with value %d\n", exec_shadow,(int)arg); |
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| 83 | pthread_setspecific(prova_key,(void *)((int)arg/100)); |
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| 84 | } |
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| 85 | |||
| 86 | void print_test() |
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| 87 | { |
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| 88 | int val; |
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| 89 | |||
| 90 | val = (int)pthread_getspecific(prova_key); |
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| 91 | cprintf("J (pid=%d) printtest value=%d\n", exec_shadow, val); |
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| 92 | } |
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| 93 | |||
| 94 | void *J(void *arg) |
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| 95 | { |
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| 96 | pthread_once(&once, once_init); |
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| 97 | cprintf("J (pid=%d) starts and call setspecific\n", exec_shadow); |
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| 98 | pthread_setspecific(prova_key,arg); |
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| 99 | print_test(); |
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| 100 | cprintf("J (pid=%d) exits\n", exec_shadow); |
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| 101 | |||
| 102 | return 0; |
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| 103 | } |
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| 104 | |||
| 105 | int main(int argc, char **argv) |
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| 106 | { |
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| 107 | int err; |
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| 108 | pthread_t j1, j2; |
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| 109 | |||
| 110 | cprintf("main: creating prova_key\n"); |
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| 111 | pthread_key_create(&prova_key, destr_key); |
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| 112 | |||
| 113 | cprintf("main: provakey =%d\n", prova_key); |
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| 114 | |||
| 115 | cprintf("main: creating J1\n"); |
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| 116 | err = pthread_create(&j1, NULL, J, (void *)1414); |
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| 117 | if (err) cprintf("Error creating J1\n"); |
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| 118 | cprintf("main: J1 has PID %d\n",j1); |
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| 119 | |||
| 120 | cprintf("main: creating J2\n"); |
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| 121 | err = pthread_create(&j2, NULL, J, (void *)3141); |
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| 122 | if (err) cprintf("Error creating J2\n"); |
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| 123 | cprintf("main: J2 has PID %d\n",j2); |
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| 124 | |||
| 125 | cprintf("main: waiting 0.4 sec\n"); |
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| 126 | while (sys_gettime(NULL) < 400000); |
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| 127 | |||
| 128 | cprintf("main: kill J1 and J2\n"); |
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| 129 | pthread_cancel(j1); |
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| 130 | pthread_cancel(j2); |
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| 131 | |||
| 132 | cprintf("main: ending...\n"); |
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| 133 | |||
| 134 | return 0; |
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| 135 | } |