old-autovect-branch/libstdc++-v3/testsuite/ext/mt_allocator/22309_thread.cc

   1 // { dg-require-sharedlib "" }
   2 // { dg-options "-g -O2 -pthread -ldl" { target *-*-linux* } }
   3
   4 // Copyright (C) 2004, 2005 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 2, or (at your option)
  10 // any later version.
  11 //
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING.  If not, write to the Free
  19 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  20 // USA.
  21
  22 #include <dlfcn.h>
  23 #include <pthread.h>
  24 #include <cstdlib>
  25 #include <stdexcept>
  26
  27 void
  28 check_dlopen(void*& h)
  29 {
  30   dlerror();
  31   void* tmp = dlopen("./testsuite_shared.so", RTLD_LAZY);
  32   if (!tmp)
  33     {
  34       try
  35         {
  36           // Throws std::logic_error on NULL string.
  37           std::string error(dlerror());
  38           throw std::runtime_error(error);
  39         }
  40       catch (const std::logic_error&)
  41         { }
  42     }
  43   h = tmp;
  44 }
  45
  46 void
  47 check_dlsym(void*& h)
  48 {
  49   dlerror();
  50
  51   typedef void (*function_type) (void);
  52   function_type fn;
  53   fn = reinterpret_cast<function_type>(dlsym(h, "try_allocation"));
  54
  55   try
  56     {
  57       std::string error(dlerror());
  58       throw std::runtime_error(error);
  59     }
  60   catch (const std::logic_error&)
  61     { }
  62
  63   fn();
  64 }
  65
  66 void
  67 check_dlclose(void*& h)
  68 {
  69   dlerror();
  70   if (dlclose(h) != 0)
  71     {
  72       try
  73         {
  74           std::string error(dlerror());
  75           throw std::runtime_error(error);
  76         }
  77       catch (const std::logic_error&)
  78         { }
  79     }
  80 }
  81
  82 void*
  83 tf(void* arg)
  84 {
  85   void* h;
  86   check_dlopen(h);
  87   check_dlsym(h);
  88   check_dlclose(h);
  89   return 0;
  90 }
  91
  92 // libstdc++/22309
  93 int
  94 main (void)
  95 {
  96   pthread_t th;
  97   pthread_create(&th, NULL, tf, NULL);
  98   pthread_join(th, NULL);
  99   return 0;
 100 }