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1976f0d9 LR |
1 | // 2003-05-03 Loren J. Rittle <rittle@labs.mot.com> <ljrittle@acm.org> |
2 | // | |
748086b7 JJ |
3 | // Copyright (C) 2003, 2004, 2005, 2006, 2007, 2009 |
4 | // Free Software Foundation, Inc. | |
1976f0d9 LR |
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 | |
748086b7 | 9 | // Free Software Foundation; either version 3, or (at your option) |
1976f0d9 LR |
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 | |
748086b7 JJ |
18 | // with this library; see the file COPYING3. If not see |
19 | // <http://www.gnu.org/licenses/>. | |
1976f0d9 | 20 | |
40f5cc95 RO |
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* } } | |
2aa89cbb | 23 | // { dg-options "-pthreads" { target *-*-solaris* } } |
1976f0d9 LR |
24 | |
25 | #include <ext/rope> | |
26 | #include <cstring> | |
1769232d | 27 | #include <pthread.h> |
1976f0d9 LR |
28 | #include <testsuite_hooks.h> |
29 | ||
1976f0d9 LR |
30 | const int max_thread_count = 4; |
31 | const int max_loop_count = 10000; | |
32 | ||
e3f78d9b BK |
33 | typedef __gnu_cxx::rope<char, std::allocator<char> > rope_type; |
34 | rope_type foo2; | |
35 | rope_type foo4; | |
1976f0d9 | 36 | |
11f10e6b | 37 | void* thread_main(void *) |
1976f0d9 LR |
38 | { |
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(); | |
46 | ||
47 | // Please note that the memory leak in the rope implementation with | |
48 | // this test case, existed before and after fixing this bug... | |
11f10e6b | 49 | bool test __attribute__((unused)) = true; |
1976f0d9 | 50 | VERIFY( !std::strcmp (data4, "barbazbonglehellohellohello") ); |
11f10e6b | 51 | return 0; |
1976f0d9 LR |
52 | } |
53 | ||
54 | int | |
55 | main() | |
56 | { | |
11f10e6b BK |
57 | bool test __attribute__((unused)) = true; |
58 | ||
1976f0d9 LR |
59 | pthread_t tid[max_thread_count]; |
60 | ||
87bd0274 | 61 | #if defined(__sun) && defined(__svr4__) && _XOPEN_VERSION >= 500 |
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62 | pthread_setconcurrency (max_thread_count); |
63 | #endif | |
64 | ||
e3f78d9b | 65 | rope_type foo; |
1976f0d9 LR |
66 | foo += "bar"; |
67 | foo += "baz"; | |
68 | foo += "bongle"; | |
69 | const char* data = foo.c_str(); | |
70 | VERIFY( !std::strcmp (data, "barbazbongle") ); | |
71 | ||
72 | const char* data2; | |
73 | { | |
1976f0d9 LR |
74 | foo2 += "bar2"; |
75 | foo2 += "baz2"; | |
76 | foo2 += "bongle2"; | |
77 | data2 = foo2.c_str(); | |
78 | VERIFY( !std::strcmp (data2, "bar2baz2bongle2") ); | |
79 | } | |
80 | ||
e3f78d9b | 81 | rope_type foo3 ("hello"); |
1976f0d9 LR |
82 | const char* data3 = foo3.c_str(); |
83 | VERIFY( !std::strcmp (data3, "hello") ); | |
84 | ||
85 | for (int j = 0; j < max_loop_count; j++) | |
86 | { | |
87 | foo4 = foo; | |
88 | foo4 += foo3; | |
89 | foo4 += foo3; | |
90 | foo4 += foo3; | |
91 | ||
92 | for (int i = 0; i < max_thread_count; i++) | |
93 | pthread_create (&tid[i], NULL, thread_main, 0); | |
94 | ||
95 | for (int i = 0; i < max_thread_count; i++) | |
96 | pthread_join (tid[i], NULL); | |
97 | } | |
98 | ||
63041e68 PC |
99 | VERIFY( !std::strcmp (data, "barbazbongle") ); |
100 | VERIFY( !std::strcmp (data2, "bar2baz2bongle2") ); | |
1976f0d9 LR |
101 | |
102 | return 0; | |
103 | } |