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// unique_lock::release example
#include <iostream> // std::cout
#include <vector> // std::vector
#include <thread> // std::thread
#include <mutex> // std::mutex, std::unique_lock
std::mutex mtx;
int count = 0;
void print_count_and_unlock (std::mutex* p_mtx) {
std::cout << "count: " << count << '\n';
p_mtx->unlock();
}
void task() {
std::unique_lock<std::mutex> lck(mtx);
++count;
print_count_and_unlock(lck.release());
}
int main ()
{
std::vector<std::thread> threads;
for (int i=0; i<10; ++i)
threads.emplace_back(task);
for (auto& x: threads) x.join();
return 0;
}
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