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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [libstdc++-v3/] [testsuite/] [ext/] [rope/] [pthread7-rope.cc] - Rev 424
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// 2003-05-03 Loren J. Rittle <rittle@labs.mot.com> <ljrittle@acm.org> // // Copyright (C) 2003, 2004, 2005, 2006, 2007, 2009 // 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 3, 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 COPYING3. If not see // <http://www.gnu.org/licenses/>. // { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* alpha*-*-osf* mips-sgi-irix6* } } // { dg-options "-pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* alpha*-*-osf* mips-sgi-irix6* } } // { dg-options "-pthreads" { target *-*-solaris* } } #include <ext/rope> #include <cstring> #include <pthread.h> #include <testsuite_hooks.h> const int max_thread_count = 4; const int max_loop_count = 10000; typedef __gnu_cxx::rope<char, std::allocator<char> > rope_type; rope_type foo2; rope_type 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; } int main() { bool test __attribute__((unused)) = true; pthread_t tid[max_thread_count]; #if defined(__sun) && defined(__svr4__) && _XOPEN_VERSION >= 500 pthread_setconcurrency (max_thread_count); #endif rope_type 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") ); } rope_type 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; }