Function testCopier

flow/WriteOnlySet.actor.cpp:206–216

occasionally copy the contents of the past set.

// occasionally copy the contents of the past set.
void testCopier(std::shared_ptr<TestSet> set, std::chrono::seconds runFor) {
	auto start = Clock::now();
	while (true) {
		if (Clock::now() - start > runFor) {
			return;
		}
		auto copy = set->copy();
		numCopied.fetch_add(copy.size());
		std::this_thread::sleep_for(std::chrono::milliseconds(10));
	}
}

// In a loop adds and removes a set of objects to the set
void writer(std::shared_ptr<TestSet> set, std::chrono::seconds runFor) {