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1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
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3 | Copyright 2002, 2003, 2004, 2007, 2008, 2009, 2010 |
4 | Free Software Foundation, Inc. | |
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6 | Copyright 1992, 1993, 1994, 1995, 1999, 2002, 2003, 2007, 2008, 2009 |
7 | Free Software Foundation, Inc. | |
8 | ||
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9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
d53a7b30 | 11 | the Free Software Foundation; either version 3 of the License, or |
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12 | (at your option) any later version. |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
d53a7b30 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. |
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21 | |
22 | This file is copied from schedlock.c. */ | |
23 | ||
24 | #include <stdio.h> | |
25 | #include <unistd.h> | |
26 | #include <stdlib.h> | |
27 | #include <pthread.h> | |
28 | ||
29 | void *thread_function (void *arg); /* Pointer to function executed by each thread */ | |
30 | ||
31 | #define NUM 5 | |
32 | ||
33 | static unsigned int shared_var = 1; | |
34 | ||
35 | int main () { | |
36 | int res; | |
37 | pthread_t threads[NUM]; | |
38 | void *thread_result; | |
39 | long i; | |
40 | ||
41 | for (i = 0; i < NUM; i++) | |
42 | { | |
43 | res = pthread_create (&threads[i], | |
44 | NULL, | |
45 | thread_function, | |
46 | (void *) i); | |
47 | } | |
48 | ||
49 | thread_result = thread_function ((void *) i); | |
50 | ||
51 | exit (EXIT_SUCCESS); | |
52 | } | |
53 | ||
54 | void *thread_function (void *arg) { | |
55 | int my_number = (long) arg; | |
56 | /* Don't run forever. Run just short of it :) */ | |
57 | while (shared_var > 0) | |
58 | { | |
59 | shared_var++; | |
60 | usleep (1); /* Loop increment. */ | |
61 | } | |
62 | ||
63 | pthread_exit (NULL); | |
64 | } | |
65 |