/// <summary>
/// Initializes a new instance of the <see cref='Timer' /> class.
/// </summary>
/// <param name="startDelay">The amount of time to delay before <see cref="Elapsed"/> event is invoked. Specify <see cref="TimeSpan.Zero"/> to start the timer immediately.</param>
/// <param name="interval">The time interval on which to raise events. Min value is represented by <see cref="MinInterval"/> (1 millisecond). Max value is represented by <see cref="MaxInterval"/>.</param>
/// <param name="handler">The <see cref="Elapsed"/> event handler.</param>
/// <param name="autoResetMode">The auto reset mode.</param>
public Timer(TimeSpan startDelay, TimeSpan interval, EventHandler <CancellationToken> handler = null, TimerAutoResetMode autoResetMode = TimerAutoResetMode.Exact)
{
Ensure.IsGreaterThanOrEqualToZero(startDelay, nameof(startDelay));
Ensure.IsBetween(interval, MinInterval, MaxInterval, nameof(interval));
StartDelay = startDelay;
Interval = interval;
AutoResetMode = autoResetMode;
_timer = new System.Threading.Timer(TimerCallback, null, Timeout.Infinite, Timeout.Infinite);
if (handler != null)
{
Elapsed += handler;
}
}
/// <summary>
/// Initializes a new instance of the <see cref='Timer' /> class and sets <see cref="Interval"/> and <see cref="StartDelay"/> properties to the <paramref name="interval"/> value.
/// </summary>
/// <param name="interval">The time interval on which to raise events. Min value is represented by <see cref="MinInterval"/> (1 millisecond). Max value is represented by <see cref="MaxInterval"/>.</param>
/// <param name="handler">The <see cref="Elapsed"/> event handler.</param>
/// <param name="autoResetMode">The auto reset mode.</param>
public Timer(TimeSpan interval, EventHandler <CancellationToken> handler = null, TimerAutoResetMode autoResetMode = TimerAutoResetMode.Exact)
: this(interval, interval, handler, autoResetMode)
{
}
/// <summary>
/// Initializes a new instance of the <see cref='Timer' /> class and sets <see cref="Interval"/> and <see cref="StartDelay"/> properties to the default values (100ms).
/// </summary>
/// <param name="handler">The <see cref="Elapsed"/> event handler.</param>
/// <param name="autoResetMode">The auto reset mode.</param>
public Timer(EventHandler <CancellationToken> handler = null, TimerAutoResetMode autoResetMode = TimerAutoResetMode.Exact)
: this(TimeSpan.FromMilliseconds(DEFAULT_INTERVAL_IN_MILLISECONDS), handler, autoResetMode)
{
}
