nptl/tst-kill3.c

   1 /* Copyright (C) 2003-2016 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 pthread_cond_t c = PTHREAD_COND_INITIALIZER;
  29 static pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
  30 static pthread_barrier_t b;
  31
  32
  33 static void
  34 handler (int sig)
  35 {
  36   write (1, "handler called\n", 15);
  37   _exit (1);
  38 }
  39
  40
  41 static void *
  42 tf (void *a)
  43 {
  44   /* Block SIGUSR1.  */
  45   sigset_t ss;
  46
  47   sigemptyset (&ss);
  48   sigaddset (&ss, SIGUSR1);
  49   if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0)
  50     {
  51       puts ("child: sigmask failed");
  52       exit (1);
  53     }
  54
  55   if (pthread_mutex_lock (&m) != 0)
  56     {
  57       puts ("child: mutex_lock failed");
  58       exit (1);
  59     }
  60
  61   int e = pthread_barrier_wait (&b);
  62   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
  63     {
  64       puts ("child: barrier_wait failed");
  65       exit (1);
  66     }
  67
  68   /* Compute timeout.  */
  69   struct timeval tv;
  70   (void) gettimeofday (&tv, NULL);
  71   struct timespec ts;
  72   TIMEVAL_TO_TIMESPEC (&tv, &ts);
  73   /* Timeout: 1sec.  */
  74   ts.tv_sec += 1;
  75
  76   /* This call should never return.  */
  77   if (pthread_cond_timedwait (&c, &m, &ts) != ETIMEDOUT)
  78     {
  79       puts ("cond_timedwait didn't time out");
  80       exit (1);
  81     }
  82
  83   return NULL;
  84 }
  85
  86
  87 int
  88 do_test (void)
  89 {
  90   pthread_t th;
  91
  92   struct sigaction sa;
  93   sigemptyset (&sa.sa_mask);
  94   sa.sa_flags = 0;
  95   sa.sa_handler = handler;
  96   if (sigaction (SIGUSR1, &sa, NULL) != 0)
  97     {
  98       puts ("sigaction failed");
  99       exit (1);
 100     }
 101
 102   if (pthread_barrier_init (&b, NULL, 2) != 0)
 103     {
 104       puts ("barrier_init failed");
 105       exit (1);
 106     }
 107
 108   if (pthread_create (&th, NULL, tf, NULL) != 0)
 109     {
 110       puts ("create failed");
 111       exit (1);
 112     }
 113
 114   int e = pthread_barrier_wait (&b);
 115   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
 116     {
 117       puts ("barrier_wait failed");
 118       exit (1);
 119     }
 120
 121   if (pthread_mutex_lock (&m) != 0)
 122     {
 123       puts ("mutex_lock failed");
 124       exit (1);
 125     }
 126
 127   /* Send the thread a signal which it has blocked.  */
 128   if (pthread_kill (th, SIGUSR1) != 0)
 129     {
 130       puts ("kill failed");
 131       exit (1);
 132     }
 133
 134   if (pthread_mutex_unlock (&m) != 0)
 135     {
 136       puts ("mutex_unlock failed");
 137       exit (1);
 138     }
 139
 140   void *r;
 141   if (pthread_join (th, &r) != 0)
 142     {
 143       puts ("join failed");
 144       exit (1);
 145     }
 146   if (r != NULL)
 147     {
 148       puts ("return value wrong");
 149       exit (1);
 150     }
 151
 152   return 0;
 153 }
 154
 155
 156 #define TIMEOUT 5
 157 #define TEST_FUNCTION do_test ()
 158 #include "../test-skeleton.c"