pub unsafe extern "C" fn aeron_subscription_constants(
    subscription: *mut aeron_subscription_t,
    constants: *mut aeron_subscription_constants_t,
) -> c_int
Expand description

Fill in a structure with the constants in use by a subscription.

@param subscription to get the constants for. @param constants structure to fill in with the constants @return 0 for success and -1 for error.