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1/* Copyright (C) 2003-2019 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library 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 GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
18
19#include <pthread.h>
20#include <signal.h>
21#include <unistd.h>
22
23
24static int the_sig;
25
26
27static void
28eintr_handler (int sig)
29{
30 if (sig != the_sig)
31 {
32 write (STDOUT_FILENO, "eintr_handler: signal number wrong\n", 35);
33 _exit (1);
34 }
35 write (STDOUT_FILENO, ".", 1);
36}
37
38
39static void *
40eintr_source (void *arg)
41{
42 struct timespec ts = { .tv_sec = 0, .tv_nsec = 500000 };
43
44 if (arg == NULL)
45 {
46 sigset_t ss;
47 sigemptyset (&ss);
48 sigaddset (&ss, the_sig);
49 pthread_sigmask (SIG_BLOCK, &ss, NULL);
50 }
51
52 while (1)
53 {
54 if (arg != NULL)
55 pthread_kill (*(pthread_t *) arg, the_sig);
56 else
57 kill (getpid (), the_sig);
58
59 nanosleep (&ts, NULL);
60 }
61
62 /* NOTREACHED */
63 return NULL;
64}
65
66
67static void
68setup_eintr (int sig, pthread_t *thp)
69{
70 struct sigaction sa;
71 sigemptyset (&sa.sa_mask);
72 sa.sa_flags = 0;
73 sa.sa_handler = eintr_handler;
74 if (sigaction (sig, &sa, NULL) != 0)
75 {
76 puts ("setup_eintr: sigaction failed");
77 exit (1);
78 }
79 the_sig = sig;
80
81 /* Create the thread which will fire off the signals. */
82 pthread_t th;
83 if (pthread_create (&th, NULL, eintr_source, thp) != 0)
84 {
85 puts ("setup_eintr: pthread_create failed");
86 exit (1);
87 }
88}
89

Warning: That file was not part of the compilation database. It may have many parsing errors.