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annotate tests/test-pthread_sigmask2.c @ 40220:2796695e9216

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get-rusage-as, pthread_sigmask tests: Fix -fsanitize=thread findings. * lib/get-rusage-as.c (get_rusage_as): When compiled by "gcc -fsanitize=thread", don't try get_rusage_as_via_setrlimit. * tests/test-pthread_sigmask2.c (main): Clean up the killer_thread before exiting.
author Bruno Haible <bruno@clisp.org>
date Sun, 10 Mar 2019 01:28:42 +0100
parents b06060465f09
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* Test of pthread_sigmask in a multi-threaded program.
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2 Copyright (C) 2011-2019 Free Software Foundation, Inc.
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3
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4 This program is free software: you can redistribute it and/or modify
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5 it under the terms of the GNU General Public License as published by
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6 the Free Software Foundation; either version 3 of the License, or
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7 (at your option) any later version.
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8
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9 This program is distributed in the hope that it will be useful,
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 GNU General Public License for more details.
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13
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14 You should have received a copy of the GNU General Public License
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15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
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16
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17 /* Written by Bruno Haible <bruno@clisp.org>, 2011. */
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18
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19 #include <config.h>
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20
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21 #include <signal.h>
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22
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23 #include <errno.h>
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24 #include <stdio.h>
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25 #include <unistd.h>
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26
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27 #include "glthread/thread.h"
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28
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29 #include "macros.h"
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30
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31 #if USE_POSIX_THREADS
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32
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33 static gl_thread_t main_thread;
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34 static gl_thread_t killer_thread;
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35
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36 static void *
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37 killer_thread_func (void *arg)
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38 {
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39 sleep (1);
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40 pthread_kill (main_thread, SIGINT);
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41 return NULL;
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42 }
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43
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44 static volatile int sigint_occurred;
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45
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46 static void
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47 sigint_handler (int sig)
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48 {
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49 sigint_occurred++;
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50 }
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51
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52 int
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53 main (int argc, char *argv[])
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54 {
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55 sigset_t set;
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56
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57 signal (SIGINT, sigint_handler);
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58
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59 sigemptyset (&set);
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60 sigaddset (&set, SIGINT);
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61
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62 /* Check error handling. */
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63 ASSERT (pthread_sigmask (1729, &set, NULL) == EINVAL);
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64
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65 /* Block SIGINT. */
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66 ASSERT (pthread_sigmask (SIG_BLOCK, &set, NULL) == 0);
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67
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68 /* Request a SIGINT signal from another thread. */
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69 main_thread = gl_thread_self ();
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70 ASSERT (glthread_create (&killer_thread, killer_thread_func, NULL) == 0);
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71
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72 /* Wait. */
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73 sleep (2);
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74
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75 /* The signal should not have arrived yet, because it is blocked. */
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76 ASSERT (sigint_occurred == 0);
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77
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78 /* Unblock SIGINT. */
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79 ASSERT (pthread_sigmask (SIG_UNBLOCK, &set, NULL) == 0);
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80
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81 /* The signal should have arrived now, because POSIX says
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82 "If there are any pending unblocked signals after the call to
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83 pthread_sigmask(), at least one of those signals shall be delivered
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84 before the call to pthread_sigmask() returns." */
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85 ASSERT (sigint_occurred == 1);
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86
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87 /* Clean up the thread. This avoid a "ThreadSanitizer: thread leak" warning
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88 from "gcc -fsanitize=thread". */
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89 gl_thread_join (killer_thread, NULL);
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90
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91 return 0;
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92 }
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93
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94 #else
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95
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96 int
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97 main ()
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98 {
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99 fputs ("Skipping test: POSIX threads not enabled\n", stderr);
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100 return 77;
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101 }
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102
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103 #endif