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ROBLOX2016
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Library/boost/libs/thread/test/test_7720.cpp
54 строки
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19 дек 2024, 19:11
19 дек 2024, 19:11
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// Copyright (C) 2013 Vicente Botet // // 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) //////////////////////////////////////////// //#define BOOST_THREAD_PROVIDES_GENERIC_SHARED_MUTEX_ON_WIN #include <boost/thread/thread_only.hpp> #include <boost/thread/shared_mutex.hpp> using namespace boost; shared_mutex mtx; const int max_count = 100; void f() { int count =max_count; while (count--) { upgrade_lock<shared_mutex> lock(mtx); } } void g() { int count =max_count; while (count--) { shared_lock<shared_mutex> lock(mtx); } } void h() { int count =max_count; while (count--) { unique_lock<shared_mutex> lock(mtx); } } int main() { thread t0(f); thread t1(g); thread t2(h); t0.join(); t1.join(); t2.join(); return 0; }