1 // 2003-05-03 Loren J. Rittle <rittle@labs.mot.com> <ljrittle@acm.org>
3 // Copyright (C) 2003-2013 Free Software Foundation, Inc.
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING3. If not see
18 // <http://www.gnu.org/licenses/>.
20 // { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* } }
21 // { dg-options "-pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* } }
22 // { dg-options "-pthreads" { target *-*-solaris* } }
27 #include <testsuite_hooks.h>
29 const int max_thread_count = 4;
30 const int max_loop_count = 10000;
32 typedef __gnu_cxx::rope<char, std::allocator<char> > rope_type;
36 void* thread_main(void *)
38 // To see a problem with gcc 3.3 and before, set a break point here.
39 // Single step through c_str implementation, call sched_yield after
40 // capture of NULL __old_c_string in any thread. Single step
41 // through another thread past that same point. Now, one thread
42 // will receive a bad pointer return. Adding dummy sched_yield
43 // should never change program semantics under POSIX threads.
44 const char* data4 = foo4.c_str();
46 // Please note that the memory leak in the rope implementation with
47 // this test case, existed before and after fixing this bug...
48 bool test __attribute__((unused)) = true;
49 VERIFY( !std::strcmp (data4, "barbazbonglehellohellohello") );
56 bool test __attribute__((unused)) = true;
58 pthread_t tid[max_thread_count];
60 #if defined(__sun) && defined(__svr4__) && _XOPEN_VERSION >= 500
61 pthread_setconcurrency (max_thread_count);
68 const char* data = foo.c_str();
69 VERIFY( !std::strcmp (data, "barbazbongle") );
77 VERIFY( !std::strcmp (data2, "bar2baz2bongle2") );
80 rope_type foo3 ("hello");
81 const char* data3 = foo3.c_str();
82 VERIFY( !std::strcmp (data3, "hello") );
84 for (int j = 0; j < max_loop_count; j++)
91 for (int i = 0; i < max_thread_count; i++)
92 pthread_create (&tid[i], 0, thread_main, 0);
94 for (int i = 0; i < max_thread_count; i++)
95 pthread_join (tid[i], 0);
98 VERIFY( !std::strcmp (data, "barbazbongle") );
99 VERIFY( !std::strcmp (data2, "bar2baz2bongle2") );