mirror of
https://github.com/boostorg/smart_ptr.git
synced 2025-08-03 22:54:25 +02:00
Factored out boost/detail/lightweight_thread.hpp.
[SVN r44638]
This commit is contained in:
Peter Dimov
@@ -7,167 +7,76 @@
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#pragma warning(disable: 4514) // unreferenced inline removed
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#endif
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//
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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. (See
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// 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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//
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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 <memory>
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#include <stdexcept>
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#include <cstdio>
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#include <ctime>
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// 'portable' thread framework
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class abstract_thread
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{
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public:
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virtual ~abstract_thread() {}
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virtual void run() = 0;
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};
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#if !defined(BOOST_HAS_PTHREADS) && defined(BOOST_HAS_WINTHREADS)
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char const * title = "Using Windows threads";
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#include <windows.h>
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#include <process.h>
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typedef HANDLE pthread_t;
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unsigned __stdcall common_thread_routine(void * pv)
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{
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abstract_thread * pt = static_cast<abstract_thread *>(pv);
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pt->run();
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delete pt;
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return 0;
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}
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int pthread_create(pthread_t * thread, void const *, unsigned (__stdcall * start_routine) (void*), void* arg)
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{
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HANDLE h = (HANDLE)_beginthreadex(0, 0, start_routine, arg, 0, 0);
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if(h != 0)
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{
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*thread = h;
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return 0;
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}
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else
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{
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return 1; // return errno;
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}
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}
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int pthread_join(pthread_t thread, void ** /*value_ptr*/)
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{
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::WaitForSingleObject(thread, INFINITE);
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::CloseHandle(thread);
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return 0;
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}
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#else
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char const * title = "Using POSIX threads";
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#include <pthread.h>
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extern "C" void * common_thread_routine(void * pv)
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{
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abstract_thread * pt = static_cast<abstract_thread *>(pv);
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pt->run();
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delete pt;
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return 0;
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}
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#endif
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//
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template<class F> class thread: public abstract_thread
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{
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public:
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explicit thread(F f): f_(f)
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{
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}
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void run()
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{
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f_();
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}
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private:
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F f_;
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};
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template<class F> pthread_t createThread(F f)
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{
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std::auto_ptr<abstract_thread> p(new thread<F>(f));
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pthread_t r;
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if(pthread_create(&r, 0, common_thread_routine, p.get()) == 0)
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{
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p.release();
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return r;
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}
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throw std::runtime_error("createThread failed.");
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}
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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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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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for( int i = 0; i < n; ++i )
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{
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v.push_back(pi);
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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("%s: %d threads, %d iterations: ", title, m, n);
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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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boost::shared_ptr<int> pi( new int(42) );
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clock_t t = clock();
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pthread_t a[m];
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pthread_t a[ m ];
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for(int i = 0; i < m; ++i)
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for( int i = 0; i < m; ++i )
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{
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a[i] = createThread( boost::bind(test, pi) );
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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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for( int j = 0; j < m; ++j )
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{
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pthread_join(a[j], 0);
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pthread_join( a[j], 0 );
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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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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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@@ -7,128 +7,26 @@
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#pragma warning(disable: 4514) // unreferenced inline removed
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#endif
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//
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// weak_ptr_mt_test.cpp
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//
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// Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
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// Copyright 2005 Peter Dimov
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// 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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// Copyright 2005, 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/weak_ptr.hpp>
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#include <boost/bind.hpp>
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#include <vector>
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#include <memory>
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#include <stdexcept>
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#include <cstdio>
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#include <ctime>
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#include <cstdlib>
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// 'portable' thread framework
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class abstract_thread
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{
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public:
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virtual ~abstract_thread() {}
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virtual void run() = 0;
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};
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#if !defined(BOOST_HAS_PTHREADS) && defined(BOOST_HAS_WINTHREADS)
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char const * title = "Using Windows threads";
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#include <windows.h>
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#include <process.h>
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typedef HANDLE pthread_t;
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unsigned __stdcall common_thread_routine(void * pv)
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{
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abstract_thread * pt = static_cast<abstract_thread *>(pv);
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pt->run();
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delete pt;
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return 0;
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}
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int pthread_create(pthread_t * thread, void const *, unsigned (__stdcall * start_routine) (void*), void* arg)
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{
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HANDLE h = (HANDLE)_beginthreadex(0, 0, start_routine, arg, 0, 0);
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if(h != 0)
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{
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*thread = h;
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return 0;
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}
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else
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{
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return 1; // return errno;
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}
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}
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int pthread_join(pthread_t thread, void ** /*value_ptr*/)
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{
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::WaitForSingleObject(thread, INFINITE);
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::CloseHandle(thread);
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return 0;
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}
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#else
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char const * title = "Using POSIX threads";
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#include <pthread.h>
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extern "C" void * common_thread_routine(void * pv)
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{
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abstract_thread * pt = static_cast<abstract_thread *>(pv);
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pt->run();
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delete pt;
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return 0;
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}
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#endif
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//
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template<class F> class thread: public abstract_thread
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{
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public:
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explicit thread(F f): f_(f)
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{
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}
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void run()
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{
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f_();
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}
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private:
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F f_;
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};
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template<class F> pthread_t createThread(F f)
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{
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std::auto_ptr<abstract_thread> p(new thread<F>(f));
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pthread_t r;
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if(pthread_create(&r, 0, common_thread_routine, p.get()) == 0)
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{
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p.release();
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return r;
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}
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throw std::runtime_error("createThread failed.");
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}
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#include <boost/detail/lightweight_thread.hpp>
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//
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@@ -177,11 +75,21 @@ void test( std::vector< boost::shared_ptr<int> > & v )
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printf( "\n%d locks, %d forced rebinds, %d normal rebinds.", s, f, r );
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}
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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("%s: %d threads, %d * %d iterations: ", title, m, n, k );
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printf("Using %s threads: %d threads, %d * %d iterations: ", thmodel, m, n, k );
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std::vector< boost::shared_ptr<int> > v( k );
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@@ -192,16 +100,16 @@ int main()
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clock_t t = clock();
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pthread_t a[m];
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pthread_t a[ m ];
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for(int i = 0; i < m; ++i)
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for( int i = 0; i < m; ++i )
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{
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a[i] = createThread( boost::bind( test, v ) );
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boost::detail::lw_thread_create( a[ i ], boost::bind( test, v ) );
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}
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v.resize( 0 ); // kill original copies
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for(int j = 0; j < m; ++j)
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for( int j = 0; j < m; ++j )
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{
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pthread_join( a[j], 0 );
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}
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