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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
/* Copyright (C) 2003-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
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 <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
/* LinuxThreads pthread_cleanup_{push,pop} helpers. */
extern void _pthread_cleanup_push (struct _pthread_cleanup_buffer *__buffer,
void (*__routine) (void *),
void *__arg);
extern void _pthread_cleanup_pop (struct _pthread_cleanup_buffer *__buffer,
int __execute);
static int fds[2];
static pthread_barrier_t b2;
static int global;
/* Defined in tst-cleanup4aux.c, never compiled with -fexceptions. */
extern void fn5 (void);
extern void fn7 (void);
extern void fn9 (void);
void
clh (void *arg)
{
int val = (long int) arg;
printf ("clh (%d)\n", val);
global *= val;
global += val;
}
static __attribute__((noinline)) void
fn_read (void)
{
int r = pthread_barrier_wait (&b2);
if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
{
printf ("%s: barrier_wait failed\n", __FUNCTION__);
exit (1);
}
char c;
read (fds[0], &c, 1);
}
__attribute__((noinline)) void
fn0 (void)
{
pthread_cleanup_push (clh, (void *) 1l);
fn_read ();
pthread_cleanup_pop (1);
}
__attribute__((noinline)) void
fn1 (void)
{
/* This is the old LinuxThreads pthread_cleanup_{push,pop}. */
struct _pthread_cleanup_buffer b;
_pthread_cleanup_push (&b, clh, (void *) 2l);
fn0 ();
_pthread_cleanup_pop (&b, 1);
}
static __attribute__((noinline)) void
fn2 (void)
{
pthread_cleanup_push (clh, (void *) 3l);
fn1 ();
pthread_cleanup_pop (1);
}
static void *
tf (void *a)
{
switch ((long) a)
{
case 0:
fn2 ();
break;
case 1:
fn5 ();
break;
case 2:
fn7 ();
break;
case 3:
fn9 ();
break;
}
return NULL;
}
int
do_test (void)
{
int result = 0;
if (pipe (fds) != 0)
{
puts ("pipe failed");
exit (1);
}
if (pthread_barrier_init (&b2, NULL, 2) != 0)
{
puts ("b2 init failed");
exit (1);
}
const int expect[] =
{
15, /* 1 2 3 */
276, /* 1 4 5 6 */
120, /* 1 7 8 */
460 /* 1 2 9 10 */
};
long i;
for (i = 0; i < 4; ++i)
{
global = 0;
printf ("test %ld\n", i);
pthread_t th;
if (pthread_create (&th, NULL, tf, (void *) i) != 0)
{
puts ("create failed");
exit (1);
}
int e = pthread_barrier_wait (&b2);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
printf ("%s: barrier_wait failed\n", __FUNCTION__);
exit (1);
}
pthread_cancel (th);
void *r;
if ((e = pthread_join (th, &r)) != 0)
{
printf ("join failed: %d\n", e);
_exit (1);
}
if (r != PTHREAD_CANCELED)
{
puts ("thread not canceled");
exit (1);
}
if (global != expect[i])
{
printf ("global = %d, expected %d\n", global, expect[i]);
result = 1;
}
}
return result;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
|
GitWeb