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- #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();
- boost::detail::lw_thread_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 )
- {
- boost::detail::lw_thread_join( a[j] );
- }
- t = clock() - t;
- printf( "\n\n%.3f seconds.\n", static_cast<double>(t) / CLOCKS_PER_SEC );
- return 0;
- }
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