aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/pthread/tst-cond10.c
blob: e2c043d40945e3461a668fbd4c4395be7523b83c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
/* Copyright (C) 2003-2022 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <https://www.gnu.org/licenses/>.  */

#include <error.h>
#include <pthread.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>


#define N 10
#define ROUNDS 100

static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
static pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER;
static pthread_barrier_t bN1;
static pthread_barrier_t b2;


static void *
tf (void *p)
{
  if (pthread_mutex_lock (&mut) != 0)
    {
      puts ("child: 1st mutex_lock failed");
      exit (1);
    }

  int e = pthread_barrier_wait (&b2);
  if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
    {
      puts ("child: 1st barrier_wait failed");
      exit (1);
    }

  if (pthread_cond_wait (&cond, &mut) != 0)
    {
      puts ("child: cond_wait failed");
      exit (1);
    }

  if (pthread_mutex_unlock (&mut) != 0)
    {
      puts ("child: mutex_unlock failed");
      exit (1);
    }

  e = pthread_barrier_wait (&bN1);
  if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
    {
      puts ("child: 2nd barrier_wait failed");
      exit (1);
    }

  return NULL;
}


static int
do_test (void)
{
  if (pthread_barrier_init (&bN1, NULL, N + 1) != 0)
    {
      puts ("barrier_init failed");
      exit (1);
    }

  if (pthread_barrier_init (&b2, NULL, 2) != 0)
    {
      puts ("barrier_init failed");
      exit (1);
    }

  pthread_attr_t at;

  if (pthread_attr_init (&at) != 0)
    {
      puts ("attr_init failed");
      return 1;
    }

  if (pthread_attr_setstacksize (&at, 1 * 1024 * 1024) != 0)
    {
      puts ("attr_setstacksize failed");
      return 1;
    }

  int r;
  for (r = 0; r < ROUNDS; ++r)
    {
      printf ("round %d\n", r + 1);

      int i;
      pthread_t th[N];
      for (i = 0; i < N; ++i)
	{
	  if (pthread_create (&th[i], &at, tf, NULL) != 0)
	    {
	      puts ("create failed");
	      exit (1);
	    }

	  int e = pthread_barrier_wait (&b2);
	  if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
	    {
	      puts ("parent: 1st barrier_wait failed");
	      exit (1);
	    }
	}

      if (pthread_mutex_lock (&mut) != 0)
	{
	  puts ("parent: mutex_lock failed");
	  exit (1);
	}
      if (pthread_mutex_unlock (&mut) != 0)
	{
	  puts ("parent: mutex_unlock failed");
	  exit (1);
	}

      /* N single signal calls.  Without locking.  This tests that no
	 signal gets lost.  */
      for (i = 0; i < N; ++i)
	if (pthread_cond_signal (&cond) != 0)
	  {
	    puts ("cond_signal failed");
	    exit (1);
	  }

      int e = pthread_barrier_wait (&bN1);
      if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
	{
	  puts ("parent: 2nd barrier_wait failed");
	  exit (1);
	}

      for (i = 0; i < N; ++i)
	if (pthread_join (th[i], NULL) != 0)
	  {
	    puts ("join failed");
	    exit (1);
	  }
    }

  if (pthread_attr_destroy (&at) != 0)
    {
      puts ("attr_destroy failed");
      return 1;
    }

  return 0;
}


#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"