nptl/tst-eintr2.c

   1 /* Copyright (C) 2003-2015 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 <string.h>
  25 #include <sys/time.h>
  26
  27 #include "eintr.c"
  28
  29
  30 static pthread_mutex_t m1 = PTHREAD_MUTEX_INITIALIZER;
  31 static pthread_mutex_t m2 = PTHREAD_MUTEX_INITIALIZER;
  32
  33
  34 static void *
  35 tf1 (void *arg)
  36 {
  37   struct timespec ts;
  38   struct timeval tv;
  39
  40   gettimeofday (&tv, NULL);
  41   TIMEVAL_TO_TIMESPEC (&tv, &ts);
  42   ts.tv_sec += 10000;
  43
  44   /* This call must never return.  */
  45   int e = pthread_mutex_timedlock (&m1, &ts);
  46   char buf[100];
  47   printf ("tf1: mutex_timedlock returned: %s\n",
  48           strerror_r (e, buf, sizeof (buf)));
  49
  50   exit (1);
  51 }
  52
  53
  54 static void *
  55 tf2 (void *arg)
  56 {
  57   while (1)
  58     {
  59       int e = pthread_mutex_lock (&m2);
  60       if (e != 0)
  61         {
  62           puts ("tf2: mutex_lock failed");
  63           exit (1);
  64         }
  65       e = pthread_mutex_unlock (&m2);
  66       if (e != 0)
  67         {
  68           puts ("tf2: mutex_unlock failed");
  69           exit (1);
  70         }
  71       struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000 };
  72       nanosleep (&ts, NULL);
  73     }
  74 }
  75
  76
  77 static int
  78 do_test (void)
  79 {
  80   if (pthread_mutex_lock (&m1) != 0)
  81     {
  82       puts ("mutex_lock failed");
  83       exit (1);
  84     }
  85
  86   setup_eintr (SIGUSR1, NULL);
  87
  88   pthread_t th;
  89   char buf[100];
  90   int e = pthread_create (&th, NULL, tf1, NULL);
  91   if (e != 0)
  92     {
  93       printf ("main: 1st pthread_create failed: %s\n",
  94               strerror_r (e, buf, sizeof (buf)));
  95       exit (1);
  96     }
  97
  98   e = pthread_create (&th, NULL, tf2, NULL);
  99   if (e != 0)
 100     {
 101       printf ("main: 2nd pthread_create failed: %s\n",
 102               strerror_r (e, buf, sizeof (buf)));
 103       exit (1);
 104     }
 105
 106   /* This call must never return.  */
 107   e = pthread_mutex_lock (&m1);
 108   printf ("main: mutex_lock returned: %s\n",
 109           strerror_r (e, buf, sizeof (buf)));
 110
 111   return 1;
 112 }
 113
 114 #define EXPECTED_SIGNAL SIGALRM
 115 #define TIMEOUT 3
 116 #define TEST_FUNCTION do_test ()
 117 #include "../test-skeleton.c"