nptl/tst-kill3.c

   1 /* Copyright (C) 2003-2017 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 <errno.h>
  20 #include <pthread.h>
  21 #include <signal.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <unistd.h>
  25 #include <sys/time.h>
  26
  27
  28 static int do_test (void);
  29
  30 #define TIMEOUT 5
  31 #define TEST_FUNCTION do_test ()
  32 #include "../test-skeleton.c"
  33
  34 static pthread_cond_t c = PTHREAD_COND_INITIALIZER;
  35 static pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
  36 static pthread_barrier_t b;
  37
  38
  39 static void
  40 handler (int sig)
  41 {
  42   write_message ("handler called\n");
  43   _exit (1);
  44 }
  45
  46
  47 static void *
  48 tf (void *a)
  49 {
  50   /* Block SIGUSR1.  */
  51   sigset_t ss;
  52
  53   sigemptyset (&ss);
  54   sigaddset (&ss, SIGUSR1);
  55   if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0)
  56     {
  57       puts ("child: sigmask failed");
  58       exit (1);
  59     }
  60
  61   if (pthread_mutex_lock (&m) != 0)
  62     {
  63       puts ("child: mutex_lock failed");
  64       exit (1);
  65     }
  66
  67   int e = pthread_barrier_wait (&b);
  68   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
  69     {
  70       puts ("child: barrier_wait failed");
  71       exit (1);
  72     }
  73
  74   /* Compute timeout.  */
  75   struct timeval tv;
  76   (void) gettimeofday (&tv, NULL);
  77   struct timespec ts;
  78   TIMEVAL_TO_TIMESPEC (&tv, &ts);
  79   /* Timeout: 1sec.  */
  80   ts.tv_sec += 1;
  81
  82   /* This call should never return.  */
  83   if (pthread_cond_timedwait (&c, &m, &ts) != ETIMEDOUT)
  84     {
  85       puts ("cond_timedwait didn't time out");
  86       exit (1);
  87     }
  88
  89   return NULL;
  90 }
  91
  92
  93 int
  94 do_test (void)
  95 {
  96   pthread_t th;
  97
  98   struct sigaction sa;
  99   sigemptyset (&sa.sa_mask);
 100   sa.sa_flags = 0;
 101   sa.sa_handler = handler;
 102   if (sigaction (SIGUSR1, &sa, NULL) != 0)
 103     {
 104       puts ("sigaction failed");
 105       exit (1);
 106     }
 107
 108   if (pthread_barrier_init (&b, NULL, 2) != 0)
 109     {
 110       puts ("barrier_init failed");
 111       exit (1);
 112     }
 113
 114   if (pthread_create (&th, NULL, tf, NULL) != 0)
 115     {
 116       puts ("create failed");
 117       exit (1);
 118     }
 119
 120   int e = pthread_barrier_wait (&b);
 121   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
 122     {
 123       puts ("barrier_wait failed");
 124       exit (1);
 125     }
 126
 127   if (pthread_mutex_lock (&m) != 0)
 128     {
 129       puts ("mutex_lock failed");
 130       exit (1);
 131     }
 132
 133   /* Send the thread a signal which it has blocked.  */
 134   if (pthread_kill (th, SIGUSR1) != 0)
 135     {
 136       puts ("kill failed");
 137       exit (1);
 138     }
 139
 140   if (pthread_mutex_unlock (&m) != 0)
 141     {
 142       puts ("mutex_unlock failed");
 143       exit (1);
 144     }
 145
 146   void *r;
 147   if (pthread_join (th, &r) != 0)
 148     {
 149       puts ("join failed");
 150       exit (1);
 151     }
 152   if (r != NULL)
 153     {
 154       puts ("return value wrong");
 155       exit (1);
 156     }
 157
 158   return 0;
 159 }