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