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f6512a69 SM |
1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
3 | Copyright 2015 Free Software Foundation, Inc. | |
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 | |
7 | the Free Software Foundation; either version 3 of the License, or | |
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 | |
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
17 | ||
18 | #define _GNU_SOURCE | |
19 | #include <unistd.h> | |
20 | #include <stdlib.h> | |
21 | #include <pthread.h> | |
22 | #include <assert.h> | |
23 | ||
24 | #define NUM_THREADS 3 | |
25 | ||
26 | struct thread_data | |
27 | { | |
28 | const char *name; | |
29 | pthread_barrier_t *barrier; | |
30 | }; | |
31 | ||
32 | static void * | |
33 | thread_func (void *varg) | |
34 | { | |
35 | struct thread_data *arg = (struct thread_data *) varg; | |
36 | int res; | |
37 | ||
38 | res = pthread_setname_np (pthread_self (), arg->name); | |
39 | assert (res == 0); | |
40 | ||
41 | pthread_barrier_wait (arg->barrier); | |
42 | ||
43 | pthread_barrier_wait (arg->barrier); | |
44 | ||
45 | return NULL; | |
46 | } | |
47 | ||
48 | static void | |
49 | all_threads_ready (void) | |
50 | { | |
51 | } | |
52 | ||
53 | int | |
54 | main (int argc, char **argv) | |
55 | { | |
56 | pthread_t threads[NUM_THREADS]; | |
57 | struct thread_data args[NUM_THREADS]; | |
58 | pthread_barrier_t barrier; | |
59 | int i, res; | |
60 | const char *names[] = { "carrot", "potato", "celery" }; | |
61 | ||
62 | alarm (20); | |
63 | ||
64 | /* Make sure that NAMES contains NUM_THREADS elements. */ | |
65 | assert (sizeof (names) / sizeof (names[0]) == NUM_THREADS); | |
66 | ||
67 | res = pthread_barrier_init (&barrier, NULL, NUM_THREADS + 1); | |
68 | assert (res == 0);; | |
69 | ||
70 | res = pthread_setname_np (pthread_self (), "main"); | |
71 | assert (res == 0); | |
72 | ||
73 | for (i = 0; i < NUM_THREADS; i++) | |
74 | { | |
75 | struct thread_data *arg = &args[i]; | |
76 | ||
77 | arg->name = names[i]; | |
78 | arg->barrier = &barrier; | |
79 | ||
80 | res = pthread_create (&threads[i], NULL, thread_func, arg); | |
81 | assert (res == 0); | |
82 | } | |
83 | ||
84 | pthread_barrier_wait (&barrier); | |
85 | ||
86 | all_threads_ready (); | |
87 | ||
88 | pthread_barrier_wait (&barrier); | |
89 | ||
90 | for (i = 0; i < NUM_THREADS; i++) | |
91 | { | |
92 | res = pthread_join (threads[i], NULL); | |
93 | assert (res == 0); | |
94 | } | |
95 | ||
96 | return 0; | |
97 | } |