/// <summary>
/// Constructs a new <see cref="ConsensusServer"/>.
/// </summary>
/// <param name="configuration">The <see cref="IServerConfiguration"/> of this <see cref="ConsensusServer"/>.</param>
/// <param name="log">The <see cref="ILog"/> used by this <see cref="ConsensusServer"/> to store entries in.</param>
/// <param name="protocol">The <see cref="IProtocol"/> using by this <see cref="ConsensusServer"/> to communicate with other <see cref="ConsensusServer"/>s in the same cluster.</param>
/// <param name="scheduler">The <see cref="IResourceTrackingScheduler"/> on which to execute callbacks.</param>
/// <exception cref="ArgumentNullException">Thrown if one of the parameters is null.</exception>
public ConsensusServer(IServerConfiguration configuration, ILog log, IProtocol protocol, IResourceTrackingScheduler scheduler)
{
// validate arguments
if (configuration == null)
{
throw new ArgumentNullException("configuration");
}
if (scheduler == null)
{
throw new ArgumentNullException("scheduler");
}
if (log == null)
{
throw new ArgumentNullException("log");
}
if (protocol == null)
{
throw new ArgumentNullException("protocol");
}
// store the arguments
this.configuration = configuration;
this.scheduler = scheduler;
this.log = log;
this.protocol = protocol;
// create a new state
state = new ConsensusServerState(this);
}
/// <summary>
/// Invokes the <paramref name="callback"/> after every elapsed <paramref name="timeout"/>.
/// </summary>
/// <param name="resouceResourceTrackingScheduler">The <see cref="IResourceTrackingScheduler"/> on which the timeout event will be executed.</param>
/// <param name="callback">The callback which to invoke on timeout.</param>
/// <param name="timeout">The timeout which to wait before <paramref name="callback"/> should be executed.</param>
/// <returns>Returns a <see cref="ITimer"/> which controls the timer.</returns>
/// <exception cref="ArgumentNullException">Thrown if one of the parameters is null.</exception>
public static ITimer SetInterval(this IResourceTrackingScheduler resouceResourceTrackingScheduler, Action callback, TimeSpan timeout)
{
// validate arguments
if (resouceResourceTrackingScheduler == null)
{
throw new ArgumentNullException("resouceResourceTrackingScheduler");
}
if (callback == null)
{
throw new ArgumentNullException("callback");
}
// create the timer which will schedule the callback
var timer = new TimerControl(timeout, timeout);
var token = timer.Token;
// create a resource managed by the event loop
var untrack = resouceResourceTrackingScheduler.TrackResource(token, timer);
// dispose the timer if cancelled
token.Register(() => {
// untrack the resource
untrack(token);
// dispose the timer
timer.Dispose();
});
// set the timer
timer.Set(() => resouceResourceTrackingScheduler.Schedule(callback));
// return the timer
return(timer);
}
/// <summary>
/// Constructs a new <see cref="ConsensusServer"/>.
/// </summary>
/// <param name="configuration">The <see cref="IServerConfiguration"/> of this <see cref="ConsensusServer"/>.</param>
/// <param name="log">The <see cref="ILog"/> used by this <see cref="ConsensusServer"/> to store entries in.</param>
/// <param name="protocol">The <see cref="IProtocol"/> using by this <see cref="ConsensusServer"/> to communicate with other <see cref="ConsensusServer"/>s in the same cluster.</param>
/// <param name="scheduler">The <see cref="IResourceTrackingScheduler"/> on which to execute callbacks.</param>
/// <exception cref="ArgumentNullException">Thrown if one of the parameters is null.</exception>
public ConsensusServer(IServerConfiguration configuration, ILog log, IProtocol protocol, IResourceTrackingScheduler scheduler)
{
// validate arguments
if (configuration == null)
throw new ArgumentNullException("configuration");
if (scheduler == null)
throw new ArgumentNullException("scheduler");
if (log == null)
throw new ArgumentNullException("log");
if (protocol == null)
throw new ArgumentNullException("protocol");
// store the arguments
this.configuration = configuration;
this.scheduler = scheduler;
this.log = log;
this.protocol = protocol;
// create a new state
state = new ConsensusServerState(this);
}
