when_exit.cc Example # 8 - Exit. This is a test of the special shutdown that occurs when all threads, including the main one, call threadmm::thread::exit(). This example demonstrates that atexit handlers are properly called, and that the output is properly flushed even when stdout is redirected to a file, and therefore fully buffered. // // $Id: when_exit.cc,v 1.5 2003/10/30 15:05:12 cholm Exp $ // // Test of threads - C example ex7.c // Copyright (C) 2002 Christian Holm Christensen <cholm@nbi.dk> // // This library is free software; you can redistribute it and/or // modify it under the terms of the GNU Lesser General Public License // as published by the Free Software Foundation; either version 2.1 // of the License, 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 // Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public // License along with this library; if not, write to the Free // Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA // 02111-1307 USA // #ifndef OPTION_HH #include "option.hh" #endif #ifndef THREADMM_thread #include <threadmm/thread.hh> #endif #ifndef THREADMM_thread_group #include <threadmm/thread_group.hh> #endif #ifndef __CSTDLIB__ #include <cstdlib> #endif using namespace std; static void my_atexit(void) { cout << "in `atexit' handler" << endl; } namespace example { class print : public threadmm::thread { private: int _i; public: print(int i) : _i(i) {} void* operator()() { cout << "Thread "<< _i << " terminating" << endl; return 0; } }; class when_exit { private: public: when_exit() {} int run() { try { atexit(my_atexit); threadmm::thread_group group; for (int i = 0; i < 20; i++) { std::cout << "Hello, starting thread # "<< i << std::endl; threadmm::thread* p = new print(i); group.add(p); p->run(); } group.join(); return 0; } catch(exception& e) { cerr << e.what() << endl; } std::cout << "Never reached" << std::endl; return 0; } }; } //_______________________________________________________________________ int main(int argc, char** argv) { if (!example::options(argc, argv)) return 0; example::when_exit exa; return exa.run(); } //_______________________________________________________________________ // // EOF //