Commit | Line | Data |
---|---|---|
19ad59e7 JJ |
1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
ecd75fc8 | 3 | Copyright 2002-2014 Free Software Foundation, Inc. |
19ad59e7 JJ |
4 | |
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 7 | the Free Software Foundation; either version 3 of the License, or |
19ad59e7 JJ |
8 | (at your option) any later version. |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 16 | along with this program. If not, see <http://www.gnu.org/licenses/>. |
19ad59e7 JJ |
17 | |
18 | This file is copied from schedlock.c. */ | |
19 | ||
20 | #include <stdio.h> | |
21 | #include <unistd.h> | |
22 | #include <stdlib.h> | |
23 | #include <pthread.h> | |
24 | ||
25 | void *thread_function(void *arg); /* Pointer to function executed by each thread */ | |
26 | ||
27 | #define NUM 5 | |
28 | ||
29 | unsigned int args[NUM+1]; | |
30 | ||
31 | int main() { | |
32 | int res; | |
33 | int all_started; | |
34 | pthread_t threads[NUM]; | |
35 | void *thread_result; | |
36 | long i; | |
37 | ||
38 | for (i = 0; i < NUM; i++) | |
39 | { | |
40 | args[i] = 1; /* Init value. */ | |
41 | res = pthread_create(&threads[i], | |
42 | NULL, | |
43 | thread_function, | |
44 | (void *) i); | |
45 | } | |
46 | ||
47 | all_started = 0; | |
48 | while (!all_started) | |
49 | { | |
50 | all_started = 1; | |
51 | for (i = 0; i < NUM; i++) | |
52 | { | |
53 | if (args[i] == 1) | |
54 | { | |
55 | all_started = 0; | |
56 | break; | |
57 | } | |
58 | } | |
59 | } | |
60 | ||
61 | args[i] = 1; | |
62 | /* Break here */ | |
63 | thread_function ((void *) i); | |
64 | ||
65 | exit(EXIT_SUCCESS); | |
66 | } | |
67 | ||
68 | void *thread_function(void *arg) { | |
69 | int my_number = (long) arg; | |
70 | int *myp = (int *) &args[my_number]; | |
71 | ||
72 | /* Don't run forever. Run just short of it :) */ | |
73 | while (*myp > 0) | |
74 | { | |
75 | (*myp) ++; /* Loop increment. */ | |
76 | } | |
77 | ||
78 | pthread_exit(NULL); | |
79 | } | |
80 |