nptl/tst-tls3.c

   1 /* Copyright (C) 2003 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 <dlfcn.h>
  21 #include <errno.h>
  22 #include <pthread.h>
  23 #include <signal.h>
  24 #include <semaphore.h>
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <unistd.h>
  28
  29
  30 #define THE_SIG SIGUSR1
  31
  32
  33 #define N 10
  34 static pthread_t th[N];
  35
  36
  37 #define CB(n) \
  38 static void                                                                   \
  39 cb##n (void)                                                                  \
  40 {                                                                             \
  41   if (th[n] != pthread_self ())                                               \
  42     {                                                                         \
  43       write (STDOUT_FILENO, "wrong callback\n", 15);                          \
  44       _exit (1);                                                              \
  45     }                                                                         \
  46 }
  47 CB (0)
  48 CB (1)
  49 CB (2)
  50 CB (3)
  51 CB (4)
  52 CB (5)
  53 CB (6)
  54 CB (7)
  55 CB (8)
  56 CB (9)
  57 static void (*cbs[]) (void) =
  58 {
  59   cb0, cb1, cb2, cb3, cb4, cb5, cb6, cb7, cb8, cb9
  60 };
  61
  62
  63 sem_t s;
  64
  65
  66 pthread_barrier_t b;
  67
  68 #define TOTAL_SIGS 1000
  69 int nsigs;
  70
  71
  72 int
  73 do_test (void)
  74 {
  75 #if !HAVE___THREAD
  76
  77   puts ("No __thread support in compiler, test skipped.");
  78
  79   return 0;
  80 #else
  81
  82   if (pthread_barrier_init (&b, NULL, N + 1) != 0)
  83     {
  84       puts ("barrier_init failed");
  85       exit (1);
  86     }
  87
  88   if (sem_init (&s, 0, 0) != 0)
  89     {
  90       puts ("sem_init failed");
  91       exit (1);
  92     }
  93
  94   void *h = dlopen ("tst-tls3mod.so", RTLD_LAZY);
  95   if (h == NULL)
  96     {
  97       puts ("dlopen failed");
  98       exit (1);
  99     }
 100
 101   void *(*tf) (void *) = dlsym (h, "tf");
 102   if (tf == NULL)
 103     {
 104       puts ("dlsym for tf failed");
 105       exit (1);
 106     }
 107
 108   struct sigaction sa;
 109   sa.sa_handler = dlsym (h, "handler");
 110   if (sa.sa_handler == NULL)
 111     {
 112       puts ("dlsym for handler failed");
 113       exit (1);
 114     }
 115   sigemptyset (&sa.sa_mask);
 116   sa.sa_flags = 0;
 117   if (sigaction (THE_SIG, &sa, NULL) != 0)
 118     {
 119       puts ("sigaction failed");
 120       exit (1);
 121     }
 122
 123   int r;
 124   for (r = 0; r < 10; ++r)
 125     {
 126       int i;
 127       for (i = 0; i < N; ++i)
 128         if (pthread_create (&th[i], NULL, tf, cbs[i]) != 0)
 129           {
 130             puts ("pthread_create failed");
 131             exit (1);
 132           }
 133
 134       nsigs = 0;
 135
 136       pthread_barrier_wait (&b);
 137
 138       sigset_t ss;
 139       sigemptyset (&ss);
 140       sigaddset (&ss, THE_SIG);
 141       if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0)
 142         {
 143           puts ("pthread_sigmask failed");
 144           exit (1);
 145         }
 146
 147       /* Start sending signals.  */
 148       for (i = 0; i < TOTAL_SIGS; ++i)
 149         {
 150           if (kill (getpid (), THE_SIG) != 0)
 151             {
 152               puts ("kill failed");
 153               exit (1);
 154             }
 155
 156           if (TEMP_FAILURE_RETRY (sem_wait (&s)) != 0)
 157             {
 158               puts ("sem_wait failed");
 159               exit (1);
 160             }
 161
 162           ++nsigs;
 163         }
 164
 165       pthread_barrier_wait (&b);
 166
 167       if (pthread_sigmask (SIG_UNBLOCK, &ss, NULL) != 0)
 168         {
 169           puts ("pthread_sigmask failed");
 170           exit (1);
 171         }
 172
 173       for (i = 0; i < N; ++i)
 174         if (pthread_join (th[i], NULL) != 0)
 175           {
 176             puts ("join failed");
 177             exit (1);
 178           }
 179     }
 180
 181   return 0;
 182 #endif
 183 }
 184
 185
 186 #define TIMEOUT 5
 187 #define TEST_FUNCTION do_test ()
 188 #include "../test-skeleton.c"