Non-reentrant timers

Question

I have a function that I want to invoke every x seconds, but I want it to be thread-safe.

Can I set up this behavior when I am creating the timer? (I don\'t

Answer 1

using System;
using System.Diagnostics;

/// 

///     Updated the code.
/// 
public class NicerFormTimer : IDisposable {

    public void Dispose() {
        using ( this.Timer ) { }

        GC.SuppressFinalize( this );
    }

    private System.Windows.Forms.Timer Timer { get; }

    /// 

    ///     Perform an  after the given interval (in ).
    /// 
    /// 
    /// Perform the  again. (Restarts the .)
    /// 
    public NicerFormTimer( Action action, Boolean repeat, Int32? milliseconds = null ) {
        if ( action == null ) {
            return;
        }

        this.Timer = new System.Windows.Forms.Timer {
            Interval = milliseconds.GetValueOrDefault( 1000 )
        };

        this.Timer.Tick += ( sender, args ) => {
            try {
                this.Timer.Stop();
                action();
            }
            catch ( Exception exception ) {
                Debug.WriteLine( exception );
            }
            finally {
                if ( repeat ) {
                    this.Timer.Start();
                }
            }
        };

        this.Timer.Start();
    }

}

/// 

///     Updated the code.
/// 
public class NicerSystemTimer : IDisposable {

    public void Dispose() {
        using ( this.Timer ) { }

        GC.SuppressFinalize( this );
    }

    private System.Timers.Timer Timer { get; }

    /// 

    ///     Perform an  after the given interval (in ).
    /// 
    /// 
    /// Perform the  again. (Restarts the .)
    /// 
    public NicerSystemTimer( Action action, Boolean repeat, Double? milliseconds = null ) {
        if ( action == null ) {
            return;
        }

        this.Timer = new System.Timers.Timer {
            AutoReset = false,
            Interval = milliseconds.GetValueOrDefault( 1000 )
        };

        this.Timer.Elapsed += ( sender, args ) => {
            try {
                this.Timer.Stop();
                action();
            }
            catch ( Exception exception ) {
                Debug.WriteLine( exception );
            }
            finally {
                if ( repeat ) {
                    this.Timer.Start();
                }
            }
        };

        this.Timer.Start();
    }

}