Threaded.cpp

#include <cstddef>
#include <future>
#include <mutex>
#include <string>
#include <string_view>
#include <vector>

#include "StringPool.h"

int main()
{
 const std::string string(1000, 'a');
 const std::string_view stringView{ string };

 StringPool<char> pool;
 std::mutex poolMutex;
 std::vector<std::string_view> strings;

 std::vector<std::future<void>> futures;

 for (std::size_t i = 0; i < 1000; ++i) {
 futures.push_back(std::async(std::launch::async, [&pool, &poolMutex, stringView, &strings](){
 std::scoped_lock lockForAddingStrings{ poolMutex };
 for (std::size_t j = 0; j < 1000; ++j)
 strings.push_back(pool.add(stringView));
 }));
 }

 for (const auto& future : futures)
 future.wait();
}