1 // 2003-05-03 Loren J. Rittle <rittle@labs.mot.com> <ljrittle@acm.org>
3 // Copyright (C) 2003, 2004, 2005, 2006, 2007, 2009, 2010
4 // Free Software Foundation, Inc.
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 3, or (at your option)
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.
17 // You should have received a copy of the GNU General Public License along
18 // with this library; see the file COPYING3. If not see
19 // <http://www.gnu.org/licenses/>.
21 // { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* alpha*-*-osf* mips-sgi-irix6* } }
22 // { dg-options "-pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* alpha*-*-osf* mips-sgi-irix6* } }
23 // { dg-options "-pthreads" { target *-*-solaris* } }
28 #include <testsuite_hooks.h>
30 const int max_thread_count
= 4;
31 const int max_loop_count
= 10000;
33 typedef __gnu_cxx::rope
<char, std::allocator
<char> > rope_type
;
37 void* thread_main(void *)
39 // To see a problem with gcc 3.3 and before, set a break point here.
40 // Single step through c_str implementation, call sched_yield after
41 // capture of NULL __old_c_string in any thread. Single step
42 // through another thread past that same point. Now, one thread
43 // will receive a bad pointer return. Adding dummy sched_yield
44 // should never change program semantics under POSIX threads.
45 const char* data4
= foo4
.c_str();
47 // Please note that the memory leak in the rope implementation with
48 // this test case, existed before and after fixing this bug...
49 bool test
__attribute__((unused
)) = true;
50 VERIFY( !std::strcmp (data4
, "barbazbonglehellohellohello") );
57 bool test
__attribute__((unused
)) = true;
59 pthread_t tid
[max_thread_count
];
61 #if defined(__sun) && defined(__svr4__) && _XOPEN_VERSION >= 500
62 pthread_setconcurrency (max_thread_count
);
69 const char* data
= foo
.c_str();
70 VERIFY( !std::strcmp (data
, "barbazbongle") );
78 VERIFY( !std::strcmp (data2
, "bar2baz2bongle2") );
81 rope_type
foo3 ("hello");
82 const char* data3
= foo3
.c_str();
83 VERIFY( !std::strcmp (data3
, "hello") );
85 for (int j
= 0; j
< max_loop_count
; j
++)
92 for (int i
= 0; i
< max_thread_count
; i
++)
93 pthread_create (&tid
[i
], 0, thread_main
, 0);
95 for (int i
= 0; i
< max_thread_count
; i
++)
96 pthread_join (tid
[i
], 0);
99 VERIFY( !std::strcmp (data
, "barbazbongle") );
100 VERIFY( !std::strcmp (data2
, "bar2baz2bongle2") );