thread/example/recursive_mutex.cpp at develop · boostorg/thread · GitHub

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// William E. Kempf

// 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/thread/recursive_mutex.hpp>

#include <boost/thread/thread.hpp>

#include <iostream>

class counter

{

public:

counter() : count(0) { }

int add(int val) {

boost::unique_lock<boost::recursive_mutex> scoped_lock(mutex);

count += val;

return count;

}

int increment() {

boost::unique_lock<boost::recursive_mutex> scoped_lock(mutex);

return add(1);

}

private:

boost::recursive_mutex mutex;

int count;

};

counter g_counter;

void change_count()

{

//std::cout << "count == " << g_counter.increment() << std::endl;

}

int main(int, char*[])

{

const int num_threads=4;

boost::thread_group threads;

for (int i=0; i < num_threads; ++i)

threads.create_thread(&change_count);

threads.join_all();

return 0;

}

thread/example/recursive_mutex.cpp at develop · boostorg/thread · GitHub

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