checkDnsEvents

void checkDnsEvents(Slot,  DnsManager,  DispatchFn,  RemoveFn,  ErrorFn)(
       scope  Slot[]  slots,  ref  DnsManager dnsManager,
       scope  DispatchFn dispatchFn,  scope  RemoveFn removeFn,
       scope  ErrorFn errorFn)

@trusted nothrow

Check for pending DNS resolution events and dispatch callbacks.

Scans all DNS watcher slots. For each slot with a signalled wakeup handle, invokes the DNS callback with the resolved results.

Parameters

`slots`	Watcher slot array to scan.
`dnsManager`	DNS data manager.
`dispatchFn`	Callback: `(ref Slot, Token, IpAddress[], DnsError) => void`.
`removeFn`	Callback: `(uint index, ref Slot) => void`.
`errorFn`	Callback: `(Token, Exception) => void`.