Question

Sorry for asking such a basic question but so far all the examples that I have seen on the net for using the basic deadline timer simply initializes the timer as follows

boost::asio::deadline_timer timer(ioservice);

How do I declare this timer as a part of a class. If I try something like

boost::asio::deadline_timer timer;

Then how do I assign the ioservice object to it?

I dont see an option like timer.ioservice = ioservice

Answer 1

You have to pass a reference to the IO service to the constructor of the surrounding class, and then construct the timer in the constructors initializing list:

class ClassWithTimer
{
public:
    ClassWithTimer(boost::asio::io_service &io_service)
        : timer(io_service)  // Constructs the timer
        { }

private:
    boost::asio::deadline_timer timer;
};