| #include <boost/config.hpp> |
| |
| #if defined(BOOST_MSVC) |
| #pragma warning(disable: 4786) // identifier truncated in debug info |
| #pragma warning(disable: 4710) // function not inlined |
| #pragma warning(disable: 4711) // function selected for automatic inline expansion |
| #pragma warning(disable: 4514) // unreferenced inline removed |
| #endif |
| |
| // shared_ptr_mt_test.cpp - tests shared_ptr with multiple threads |
| // |
| // Copyright (c) 2002 Peter Dimov and Multi Media Ltd. |
| // Copyright (c) 2008 Peter Dimov |
| // |
| // Distributed under the Boost Software License, Version 1.0. |
| // See accompanying file LICENSE_1_0.txt or copy at |
| // http://www.boost.org/LICENSE_1_0.txt |
| |
| #include <boost/shared_ptr.hpp> |
| #include <boost/bind.hpp> |
| |
| #include <vector> |
| |
| #include <cstdio> |
| #include <ctime> |
| |
| #include <boost/detail/lightweight_thread.hpp> |
| |
| // |
| |
| int const n = 1024 * 1024; |
| |
| void test( boost::shared_ptr<int> const & pi ) |
| { |
| std::vector< boost::shared_ptr<int> > v; |
| |
| for( int i = 0; i < n; ++i ) |
| { |
| v.push_back( pi ); |
| } |
| } |
| |
| int const m = 16; // threads |
| |
| #if defined( BOOST_HAS_PTHREADS ) |
| |
| char const * thmodel = "POSIX"; |
| |
| #else |
| |
| char const * thmodel = "Windows"; |
| |
| #endif |
| |
| int main() |
| { |
| using namespace std; // printf, clock_t, clock |
| |
| printf( "Using %s threads: %d threads, %d iterations: ", thmodel, m, n ); |
| |
| boost::shared_ptr<int> pi( new int(42) ); |
| |
| clock_t t = clock(); |
| |
| pthread_t a[ m ]; |
| |
| for( int i = 0; i < m; ++i ) |
| { |
| boost::detail::lw_thread_create( a[ i ], boost::bind( test, pi ) ); |
| } |
| |
| for( int j = 0; j < m; ++j ) |
| { |
| pthread_join( a[j], 0 ); |
| } |
| |
| t = clock() - t; |
| |
| printf( "\n\n%.3f seconds.\n", static_cast<double>(t) / CLOCKS_PER_SEC ); |
| |
| return 0; |
| } |