1 /* Helper program for testing the pthread_cond_t and pthread_condattr_t
2 pretty printers.
3
4 Copyright (C) 2016-2022 Free Software Foundation, Inc.
5 This file is part of the GNU C Library.
6
7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public
9 License as published by the Free Software Foundation; either
10 version 2.1 of the License, or (at your option) any later version.
11
12 The GNU C Library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
16
17 You should have received a copy of the GNU Lesser General Public
18 License along with the GNU C Library; if not, see
19 <https://www.gnu.org/licenses/>. */
20
21 /* Keep the calls to the pthread_* functions on separate lines to make it easy
22 to advance through the program using the gdb 'next' command. */
23
24 #include <time.h>
25 #include <pthread.h>
26
27 #define PASS 0
28 #define FAIL 1
29
30 static int condvar_reinit (pthread_cond_t *condvar,
31 const pthread_condattr_t *attr);
32 static int test_setclock (pthread_cond_t *condvar, pthread_condattr_t *attr);
33 static int test_setpshared (pthread_cond_t *condvar, pthread_condattr_t *attr);
34
35 /* Need these so we don't have lines longer than 79 chars. */
36 #define SET_SHARED(attr, shared) pthread_condattr_setpshared (attr, shared)
37
38 int
main(void)39 main (void)
40 {
41 pthread_cond_t condvar;
42 pthread_condattr_t attr;
43 int result = FAIL;
44
45 if (pthread_condattr_init (&attr) == 0
46 && pthread_cond_init (&condvar, NULL) == 0
47 && test_setclock (&condvar, &attr) == PASS
48 && test_setpshared (&condvar, &attr) == PASS)
49 result = PASS;
50 /* Else, one of the pthread_cond* functions failed. */
51
52 return result;
53 }
54
55 /* Destroys CONDVAR and re-initializes it using ATTR. */
56 static int
condvar_reinit(pthread_cond_t * condvar,const pthread_condattr_t * attr)57 condvar_reinit (pthread_cond_t *condvar, const pthread_condattr_t *attr)
58 {
59 int result = FAIL;
60
61 if (pthread_cond_destroy (condvar) == 0
62 && pthread_cond_init (condvar, attr) == 0)
63 result = PASS;
64
65 return result;
66 }
67
68 /* Tests setting the clock ID attribute. */
69 __attribute__ ((noinline))
70 static int
test_setclock(pthread_cond_t * condvar,pthread_condattr_t * attr)71 test_setclock (pthread_cond_t *condvar, pthread_condattr_t *attr)
72 {
73 int result = FAIL;
74
75 if (pthread_condattr_setclock (attr, CLOCK_REALTIME) == 0 /* Set clock. */
76 && condvar_reinit (condvar, attr) == PASS)
77 result = PASS;
78
79 return result;
80 }
81
82 /* Tests setting whether the condvar can be shared between processes. */
83 static int
test_setpshared(pthread_cond_t * condvar,pthread_condattr_t * attr)84 test_setpshared (pthread_cond_t *condvar, pthread_condattr_t *attr)
85 {
86 int result = FAIL;
87
88 if (SET_SHARED (attr, PTHREAD_PROCESS_SHARED) == 0 /* Set shared. */
89 && condvar_reinit (condvar, attr) == PASS
90 && SET_SHARED (attr, PTHREAD_PROCESS_PRIVATE) == 0
91 && condvar_reinit (condvar, attr) == PASS)
92 result = PASS;
93
94 return result;
95 }
96