Databases
StackOverflow2013
Postsdbo
POHow to implement synchronization with timers in C#
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POHow to implement synchronization with timers in C#
    primarykey
    data
    text
    <p>I have a scenario where my C# class has two methods say <code>DoThis()</code> and <code>DoThat()</code> that are called independent of each other, in any order, by an external caller. The two methods need to be synchronized in the following way:</p> <ul> <li>After a call to <code>DoThis()</code>, wait at least <code>t1</code> seconds before proceeding with <code>DoThat()</code> execution</li> <li>After a call to <code>DoThat()</code>, wait at least <code>t2</code> seconds before proceeding with <code>DoThis()</code> execution</li> </ul> <p>So essentially in pseudocode:</p> <pre><code>static SomeCustomTimer Ta, Tb; static TimeSpan t1, t2; public static void DoThis() { if(Tb.IsRunning()) Tb.WaitForExpiry(); DoStuff(); Ta.Start(t1); } public static void DoThat() { if(Ta.IsRunning()) Ta.WaitForExpiry(); DoOtherStuff(); Tb.Start(t2); } </code></pre> <p><code>DoStuff()</code> and <code>DoOtherStuff()</code> are <b>not</b> long-running methods and do not share resources otherwise. Typically <code>DoThis()</code> and <code>DoThat()</code> will not be called concurrently. But I still need to protect against potential deadlocks. </p> <p>How can I best implement <code>DoThis()</code>, <code>DoThat()</code> in C#? </p> <p><b>EDIT</b> My scenario right now is simple in that there aren't an arbitrary number of threads calling these functions. For purpose of simplification, there's a single caller thread calling these functions in an arbitrary sequence. So the two methods will not be called concurrently, instead the caller will call these methods one-by-one in any order. I don't have control over the caller thread's code so I want to enforce the delay between successive calls to DoThis(), DoThat().</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USamo
    1. USamo
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POHow to implement synchronization with timers in C#
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POHow to implement synchronization with timers in C#
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POHow to implement synchronization with timers in C#
      1. USamo
      1. VTFavorite
    1. COjust want to check: do you want to "interupt" the execution of the other thread for some time - now matter where in the execution it is? (so the thread gets essential no processor time at all)? I guess you could try to to that with Threads but I think that this will not provent deadlocks at all - if one thread holds a lock and you pause it what do you hope to gain?
      singulars
      1. POHow to implement synchronization with timers in C#
      1. USCarsten
    2. COIsn't this going to create an infinite, yet delayed, loop for every call to either `DoThis` or `DoThat`? Is that what you want?
      singulars
      1. POHow to implement synchronization with timers in C#
      1. USEnigmativity
    3. CO@CarstenKönig No, I don't want to interrupt thread execution. I want to prevent concurrent execution and I also want to delay starting one thread if the other just finished within a window of time.
      singulars
      1. POHow to implement synchronization with timers in C#
      1. USamo
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload