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70509625 PA |
1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
3 | Copyright 2014 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 | #include <stdio.h> | |
19 | #include <unistd.h> | |
20 | #include <stdlib.h> | |
21 | #include <pthread.h> | |
22 | #include <signal.h> | |
23 | ||
24 | pthread_barrier_t barrier; | |
25 | sig_atomic_t got_sigusr1; | |
26 | sig_atomic_t got_sigusr2; | |
27 | ||
28 | void | |
29 | handler_sigusr1 (int sig) | |
30 | { | |
31 | got_sigusr1 = 1; | |
32 | } | |
33 | ||
34 | void | |
35 | handler_sigusr2 (int sig) | |
36 | { | |
37 | got_sigusr2 = 1; | |
38 | } | |
39 | ||
40 | void * | |
41 | thread_function (void *arg) | |
42 | { | |
43 | volatile unsigned int count = 1; | |
44 | ||
45 | pthread_barrier_wait (&barrier); | |
46 | ||
47 | while (count++ != 0) | |
48 | { | |
49 | if (got_sigusr1 && got_sigusr2) | |
50 | break; | |
51 | usleep (1); | |
52 | } | |
53 | } | |
54 | ||
55 | void | |
56 | all_threads_started (void) | |
57 | { | |
58 | } | |
59 | ||
60 | void | |
61 | all_threads_signalled (void) | |
62 | { | |
63 | } | |
64 | ||
65 | void | |
66 | end (void) | |
67 | { | |
68 | } | |
69 | ||
70 | int | |
71 | main (void) | |
72 | { | |
73 | pthread_t child_thread[2]; | |
74 | int i; | |
75 | ||
76 | signal (SIGUSR1, handler_sigusr1); | |
77 | signal (SIGUSR2, handler_sigusr2); | |
78 | ||
79 | pthread_barrier_init (&barrier, NULL, 3); | |
80 | ||
81 | for (i = 0; i < 2; i++) | |
82 | pthread_create (&child_thread[i], NULL, thread_function, NULL); | |
83 | ||
84 | pthread_barrier_wait (&barrier); | |
85 | ||
86 | all_threads_started (); | |
87 | ||
88 | pthread_kill (child_thread[0], SIGUSR1); | |
89 | pthread_kill (child_thread[1], SIGUSR2); | |
90 | ||
91 | all_threads_signalled (); | |
92 | ||
93 | for (i = 0; i < 2; i++) | |
94 | pthread_join (child_thread[i], NULL); | |
95 | ||
96 | end (); | |
97 | return 0; | |
98 | } |