nptl/tst-eintr2.c

   1 /* Copyright (C) 2003, 2008 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, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <errno.h>
  21 #include <pthread.h>
  22 #include <signal.h>
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <sys/time.h>
  27
  28 #include "eintr.c"
  29
  30
  31 static pthread_mutex_t m1 = PTHREAD_MUTEX_INITIALIZER;
  32 static pthread_mutex_t m2 = PTHREAD_MUTEX_INITIALIZER;
  33
  34
  35 static void *
  36 tf1 (void *arg)
  37 {
  38   struct timespec ts;
  39   struct timeval tv;
  40
  41   gettimeofday (&tv, NULL);
  42   TIMEVAL_TO_TIMESPEC (&tv, &ts);
  43   ts.tv_sec += 10000;
  44
  45   /* This call must never return.  */
  46   int e = pthread_mutex_timedlock (&m1, &ts);
  47   char buf[100];
  48   printf ("tf1: mutex_timedlock returned: %s\n",
  49           strerror_r (e, buf, sizeof (buf)));
  50
  51   exit (1);
  52 }
  53
  54
  55 static void *
  56 tf2 (void *arg)
  57 {
  58   while (1)
  59     {
  60       int e = pthread_mutex_lock (&m2);
  61       if (e != 0)
  62         {
  63           puts ("tf2: mutex_lock failed");
  64           exit (1);
  65         }
  66       e = pthread_mutex_unlock (&m2);
  67       if (e != 0)
  68         {
  69           puts ("tf2: mutex_unlock failed");
  70           exit (1);
  71         }
  72       struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000 };
  73       nanosleep (&ts, NULL);
  74     }
  75 }
  76
  77
  78 static int
  79 do_test (void)
  80 {
  81   if (pthread_mutex_lock (&m1) != 0)
  82     {
  83       puts ("mutex_lock failed");
  84       exit (1);
  85     }
  86
  87   setup_eintr (SIGUSR1, NULL);
  88
  89   pthread_t th;
  90   char buf[100];
  91   int e = pthread_create (&th, NULL, tf1, NULL);
  92   if (e != 0)
  93     {
  94       printf ("main: 1st pthread_create failed: %s\n",
  95               strerror_r (e, buf, sizeof (buf)));
  96       exit (1);
  97     }
  98
  99   e = pthread_create (&th, NULL, tf2, NULL);
 100   if (e != 0)
 101     {
 102       printf ("main: 2nd pthread_create failed: %s\n",
 103               strerror_r (e, buf, sizeof (buf)));
 104       exit (1);
 105     }
 106
 107   /* This call must never return.  */
 108   e = pthread_mutex_lock (&m1);
 109   printf ("main: mutex_lock returned: %s\n",
 110           strerror_r (e, buf, sizeof (buf)));
 111
 112   return 1;
 113 }
 114
 115 #define EXPECTED_SIGNAL SIGALRM
 116 #define TIMEOUT 3
 117 #define TEST_FUNCTION do_test ()
 118 #include "../test-skeleton.c"