1 // Copyright (C) 2010 Vicente Botet 2 // 3 // Distributed under the Boost Software License, Version 1.0. (See accompanying 4 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 5 6 #include <boost/thread/shared_mutex.hpp> 7 #include <boost/thread/locks.hpp> 8 9 // Including this will cause ambiguous errors in boost::move 10 #include <boost/unordered_map.hpp> 11 12 using namespace boost; 13 14 typedef upgrade_lock<shared_mutex> auto_upgrade_lock; 15 typedef upgrade_to_unique_lock<shared_mutex> auto_upgrade_unique_lock; 16 testUpgrade(void)17void testUpgrade(void) 18 { 19 shared_mutex mtx; 20 auto_upgrade_lock lock(mtx); 21 // Do some read-only stuff 22 23 auto_upgrade_unique_lock writeLock(lock); 24 // Do some write-only stuff with the upgraded lock 25 } 26 main()27int main() 28 { 29 testUpgrade(); 30 return 0; 31 } 32