nptl/tst-kill2.c

   1 /* Copyright (C) 2003-2020 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    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <errno.h>
  20 #include <pthread.h>
  21 #include <signal.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <sys/time.h>
  25
  26
  27 static pthread_cond_t c = PTHREAD_COND_INITIALIZER;
  28 static pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
  29 static pthread_barrier_t b;
  30
  31 static void *
  32 tf (void *a)
  33 {
  34   /* Block SIGUSR1.  */
  35   sigset_t ss;
  36
  37   sigemptyset (&ss);
  38   sigaddset (&ss, SIGUSR1);
  39   if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0)
  40     {
  41       puts ("child: sigmask failed");
  42       exit (1);
  43     }
  44
  45   if (pthread_mutex_lock (&m) != 0)
  46     {
  47       puts ("child: mutex_lock failed");
  48       exit (1);
  49     }
  50
  51   int e = pthread_barrier_wait (&b);
  52   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
  53     {
  54       puts ("child: barrier_wait failed");
  55       exit (1);
  56     }
  57
  58   /* Compute timeout.  */
  59   struct timeval tv;
  60   (void) gettimeofday (&tv, NULL);
  61   struct timespec ts;
  62   TIMEVAL_TO_TIMESPEC (&tv, &ts);
  63   /* Timeout: 1sec.  */
  64   ts.tv_sec += 1;
  65
  66   /* This call should never return.  */
  67   if (pthread_cond_timedwait (&c, &m, &ts) != ETIMEDOUT)
  68     {
  69       puts ("cond_timedwait didn't time out");
  70       exit (1);
  71     }
  72
  73   return NULL;
  74 }
  75
  76
  77 int
  78 do_test (void)
  79 {
  80   pthread_t th;
  81
  82   if (pthread_barrier_init (&b, NULL, 2) != 0)
  83     {
  84       puts ("barrier_init failed");
  85       exit (1);
  86     }
  87
  88   if (pthread_create (&th, NULL, tf, NULL) != 0)
  89     {
  90       puts ("create failed");
  91       exit (1);
  92     }
  93
  94   int e = pthread_barrier_wait (&b);
  95   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
  96     {
  97       puts ("barrier_wait failed");
  98       exit (1);
  99     }
 100
 101   if (pthread_mutex_lock (&m) != 0)
 102     {
 103       puts ("mutex_lock failed");
 104       exit (1);
 105     }
 106
 107   /* Send the thread a signal which it has blocked.  */
 108   if (pthread_kill (th, SIGUSR1) != 0)
 109     {
 110       puts ("kill failed");
 111       exit (1);
 112     }
 113
 114   if (pthread_mutex_unlock (&m) != 0)
 115     {
 116       puts ("mutex_unlock failed");
 117       exit (1);
 118     }
 119
 120   void *r;
 121   if (pthread_join (th, &r) != 0)
 122     {
 123       puts ("join failed");
 124       exit (1);
 125     }
 126   if (r != NULL)
 127     {
 128       puts ("return value wrong");
 129       exit (1);
 130     }
 131
 132   return 0;
 133 }
 134
 135
 136 #define TEST_FUNCTION do_test ()
 137 #include "../test-skeleton.c"