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1976f0d9 LR |
1 | // 2003-05-03 Loren J. Rittle <rittle@labs.mot.com> <ljrittle@acm.org> |
2 | // | |
818ab71a | 3 | // Copyright (C) 2003-2016 Free Software Foundation, Inc. |
1976f0d9 LR |
4 | // |
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 | |
748086b7 | 8 | // Free Software Foundation; either version 3, or (at your option) |
1976f0d9 LR |
9 | // any later version. |
10 | // | |
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. | |
15 | // | |
16 | // You should have received a copy of the GNU General Public License along | |
748086b7 JJ |
17 | // with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
1976f0d9 | 19 | |
37d13ae6 | 20 | // { dg-do run { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* *-*-solaris* *-*-cygwin *-*-rtems* *-*-darwin* } } |
71c54f8e | 21 | // { dg-options "-pthread" { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* *-*-solaris* } } |
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22 | |
23 | #include <ext/rope> | |
24 | #include <cstring> | |
1769232d | 25 | #include <pthread.h> |
1976f0d9 LR |
26 | #include <testsuite_hooks.h> |
27 | ||
1976f0d9 LR |
28 | const int max_thread_count = 4; |
29 | const int max_loop_count = 10000; | |
30 | ||
e3f78d9b BK |
31 | typedef __gnu_cxx::rope<char, std::allocator<char> > rope_type; |
32 | rope_type foo2; | |
33 | rope_type foo4; | |
1976f0d9 | 34 | |
11f10e6b | 35 | void* thread_main(void *) |
1976f0d9 LR |
36 | { |
37 | // To see a problem with gcc 3.3 and before, set a break point here. | |
38 | // Single step through c_str implementation, call sched_yield after | |
39 | // capture of NULL __old_c_string in any thread. Single step | |
40 | // through another thread past that same point. Now, one thread | |
41 | // will receive a bad pointer return. Adding dummy sched_yield | |
42 | // should never change program semantics under POSIX threads. | |
43 | const char* data4 = foo4.c_str(); | |
44 | ||
45 | // Please note that the memory leak in the rope implementation with | |
46 | // this test case, existed before and after fixing this bug... | |
11f10e6b | 47 | bool test __attribute__((unused)) = true; |
1976f0d9 | 48 | VERIFY( !std::strcmp (data4, "barbazbonglehellohellohello") ); |
11f10e6b | 49 | return 0; |
1976f0d9 LR |
50 | } |
51 | ||
52 | int | |
53 | main() | |
54 | { | |
11f10e6b BK |
55 | bool test __attribute__((unused)) = true; |
56 | ||
1976f0d9 LR |
57 | pthread_t tid[max_thread_count]; |
58 | ||
87bd0274 | 59 | #if defined(__sun) && defined(__svr4__) && _XOPEN_VERSION >= 500 |
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60 | pthread_setconcurrency (max_thread_count); |
61 | #endif | |
62 | ||
e3f78d9b | 63 | rope_type foo; |
1976f0d9 LR |
64 | foo += "bar"; |
65 | foo += "baz"; | |
66 | foo += "bongle"; | |
67 | const char* data = foo.c_str(); | |
68 | VERIFY( !std::strcmp (data, "barbazbongle") ); | |
69 | ||
70 | const char* data2; | |
71 | { | |
1976f0d9 LR |
72 | foo2 += "bar2"; |
73 | foo2 += "baz2"; | |
74 | foo2 += "bongle2"; | |
75 | data2 = foo2.c_str(); | |
76 | VERIFY( !std::strcmp (data2, "bar2baz2bongle2") ); | |
77 | } | |
78 | ||
e3f78d9b | 79 | rope_type foo3 ("hello"); |
1976f0d9 LR |
80 | const char* data3 = foo3.c_str(); |
81 | VERIFY( !std::strcmp (data3, "hello") ); | |
82 | ||
83 | for (int j = 0; j < max_loop_count; j++) | |
84 | { | |
85 | foo4 = foo; | |
86 | foo4 += foo3; | |
87 | foo4 += foo3; | |
88 | foo4 += foo3; | |
89 | ||
90 | for (int i = 0; i < max_thread_count; i++) | |
8fc81078 | 91 | pthread_create (&tid[i], 0, thread_main, 0); |
1976f0d9 LR |
92 | |
93 | for (int i = 0; i < max_thread_count; i++) | |
8fc81078 | 94 | pthread_join (tid[i], 0); |
1976f0d9 LR |
95 | } |
96 | ||
63041e68 PC |
97 | VERIFY( !std::strcmp (data, "barbazbongle") ); |
98 | VERIFY( !std::strcmp (data2, "bar2baz2bongle2") ); | |
1976f0d9 LR |
99 | |
100 | return 0; | |
101 | } |