Pass function to thread (job scheduler update)

A simplification to the job scheduler from the previous post is to pass the job function to the thread managing the job call, instead of making a shared pointer and capture it in the lambda.

The schedule method changes to:

void Scheduler::schedule(const Job f, long n) {
    std::unique_lock<std::mutex> lock(this->mutex);
    condition.wait(lock, [this] { return this->count < this->size; });
    count++;

    std::thread thread{
            [this](const Job f, long n) {
                std::this_thread::sleep_for(std::chrono::milliseconds(n));

                try {
                    (*f)();
                } catch (const std::exception &e) {
                    this->error(e);
                } catch (...) {
                    this->error(std::runtime_error("Unknown error"));
                }

                condition.notify_one();
                count--;
            }, f, n
    };
    thread.detach();
}