| // 2003-05-03 Loren J. Rittle <rittle@labs.mot.com> <ljrittle@acm.org> |
| // |
| // Copyright (C) 2003, 2004 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 2, or (at your option) |
| // any later version. |
| // |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| // |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING. If not, write to the Free |
| // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
| // USA. |
| |
| // { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* alpha*-*-osf* } } |
| // { dg-options "-pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* alpha*-*-osf* } } |
| // { dg-options "-pthreads" { target *-*-solaris* } } |
| |
| #include <ext/rope> |
| #include <cstring> |
| #include <testsuite_hooks.h> |
| |
| // Do not include <pthread.h> explicitly; if threads are properly |
| // configured for the port, then it is picked up free from STL headers. |
| |
| #if __GTHREADS |
| |
| const int max_thread_count = 4; |
| const int max_loop_count = 10000; |
| |
| __gnu_cxx::crope foo2; |
| __gnu_cxx::crope foo4; |
| |
| void* thread_main(void *) |
| { |
| // To see a problem with gcc 3.3 and before, set a break point here. |
| // Single step through c_str implementation, call sched_yield after |
| // capture of NULL __old_c_string in any thread. Single step |
| // through another thread past that same point. Now, one thread |
| // will receive a bad pointer return. Adding dummy sched_yield |
| // should never change program semantics under POSIX threads. |
| const char* data4 = foo4.c_str(); |
| |
| // Please note that the memory leak in the rope implementation with |
| // this test case, existed before and after fixing this bug... |
| bool test __attribute__((unused)) = true; |
| VERIFY( !std::strcmp (data4, "barbazbonglehellohellohello") ); |
| return 0; |
| } |
| |
| #if !__GXX_WEAK__ && _MT_ALLOCATOR_H |
| // Explicitly instantiate for systems with no COMDAT or weak support. |
| template class __gnu_cxx::__mt_alloc<__gnu_cxx::_Rope_RopeLeaf<char, std::allocator<char> > >; |
| template class __gnu_cxx::__mt_alloc<__gnu_cxx::_Rope_RopeFunction<char, std::allocator<char> > >; |
| template class __gnu_cxx::__mt_alloc<__gnu_cxx::_Rope_RopeSubstring<char, std::allocator<char> > >; |
| template class __gnu_cxx::__mt_alloc<__gnu_cxx::_Rope_RopeConcatenation<char, std::allocator<char> > >; |
| #endif |
| |
| int |
| main() |
| { |
| bool test __attribute__((unused)) = true; |
| |
| pthread_t tid[max_thread_count]; |
| |
| #if defined(__sun) && defined(__svr4__) |
| pthread_setconcurrency (max_thread_count); |
| #endif |
| |
| __gnu_cxx::crope foo; |
| foo += "bar"; |
| foo += "baz"; |
| foo += "bongle"; |
| const char* data = foo.c_str(); |
| VERIFY( !std::strcmp (data, "barbazbongle") ); |
| |
| const char* data2; |
| { |
| foo2 += "bar2"; |
| foo2 += "baz2"; |
| foo2 += "bongle2"; |
| data2 = foo2.c_str(); |
| VERIFY( !std::strcmp (data2, "bar2baz2bongle2") ); |
| } |
| |
| __gnu_cxx::crope foo3 ("hello"); |
| const char* data3 = foo3.c_str(); |
| VERIFY( !std::strcmp (data3, "hello") ); |
| |
| for (int j = 0; j < max_loop_count; j++) |
| { |
| foo4 = foo; |
| foo4 += foo3; |
| foo4 += foo3; |
| foo4 += foo3; |
| |
| for (int i = 0; i < max_thread_count; i++) |
| pthread_create (&tid[i], NULL, thread_main, 0); |
| |
| for (int i = 0; i < max_thread_count; i++) |
| pthread_join (tid[i], NULL); |
| } |
| |
| VERIFY( !std::strcmp (data, "barbazbongle") ); |
| VERIFY( !std::strcmp (data2, "bar2baz2bongle2") ); |
| |
| return 0; |
| } |
| #else |
| int main (void) {} |
| #endif |