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1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
32d0add0 | 3 | Copyright 2002-2015 Free Software Foundation, Inc. |
37e4754d | 4 | |
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5 | Copyright 1992, 1993, 1994, 1995, 1999, 2002, 2003, 2007, 2008, 2009 |
6 | Free Software Foundation, Inc. | |
7 | ||
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8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
d53a7b30 | 10 | the Free Software Foundation; either version 3 of the License, or |
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11 | (at your option) any later version. |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
d53a7b30 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. |
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20 | |
21 | This file is copied from schedlock.c. */ | |
22 | ||
23 | #include <stdio.h> | |
24 | #include <unistd.h> | |
25 | #include <stdlib.h> | |
26 | #include <pthread.h> | |
27 | ||
28 | void *thread_function (void *arg); /* Pointer to function executed by each thread */ | |
29 | ||
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30 | static pthread_barrier_t threads_started_barrier; |
31 | ||
32 | #define NUM 15 | |
33 | ||
34 | static int num_threads = NUM; | |
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35 | |
36 | static unsigned int shared_var = 1; | |
37 | ||
38 | int main () { | |
39 | int res; | |
40 | pthread_t threads[NUM]; | |
41 | void *thread_result; | |
42 | long i; | |
43 | ||
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44 | pthread_barrier_init (&threads_started_barrier, NULL, NUM + 1); |
45 | ||
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46 | for (i = 0; i < NUM; i++) |
47 | { | |
48 | res = pthread_create (&threads[i], | |
49 | NULL, | |
50 | thread_function, | |
51 | (void *) i); | |
52 | } | |
53 | ||
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54 | pthread_barrier_wait (&threads_started_barrier); |
55 | ||
56 | sleep (180); /* all threads started */ | |
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57 | |
58 | exit (EXIT_SUCCESS); | |
59 | } | |
60 | ||
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61 | void |
62 | loop (void) | |
63 | { | |
64 | } | |
65 | ||
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66 | void *thread_function (void *arg) { |
67 | int my_number = (long) arg; | |
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68 | |
69 | pthread_barrier_wait (&threads_started_barrier); | |
70 | ||
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71 | /* Don't run forever. Run just short of it :) */ |
72 | while (shared_var > 0) | |
73 | { | |
74 | shared_var++; | |
75 | usleep (1); /* Loop increment. */ | |
a7b796db | 76 | loop (); |
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77 | } |
78 | ||
79 | pthread_exit (NULL); | |
80 | } | |
81 |