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Obtain the service object corresponding to the given type.

    typename Service>
friend Service & use_service(
    io_service & ios);

This function is used to locate a service object that corresponds to the given service type. If there is no existing implementation of the service, then the io_service will create a new instance of the service.



The io_service object that owns the service.

Return Value

The service interface implementing the specified service type. Ownership of the service interface is not transferred to the caller.