Initial commit

libs/smart_ptr/test/shared_ptr_mt_test.cpp

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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();
+
+    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;
+}