Synchronization

synchronization

Great Reads

Understanding the SynchronizationContext in .NET with C#

by honey the codewitch

Take control of which thread your code gets executed on, and how it does

NTP/SNTP v4/v3 Server/Client C++

by JadBenAutho

Efficient and standalone library for NTP server/client utilizing pure C++

Await vs. Wait Analogies and TaskCompletionSource

by David Deley

Explain by analogy the difference between a Synchronous Wait and an Asynchronous await

Unified Concurrency I - Introduction

by ipavlu

The Cross-Platform Object-Oriented approach to Synchronization Primitives for .NET and .NET Core based on one shared pattern between two interfaces for General Threading and Async/Await.

Latest Articles

NTP/SNTP v4/v3 Server/Client C++

by JadBenAutho

Efficient and standalone library for NTP server/client utilizing pure C++

An Alternative to the Await vs. Wait Analogies and TaskCompletionSource Article

by George Swan

An explanation of the code execution pathways in an application that employs a TaskCreationSource to correlate activity between its threads

Await vs. Wait Analogies and TaskCompletionSource

by David Deley

Explain by analogy the difference between a Synchronous Wait and an Asynchronous await

ThreadGuard - C# Protect Your Variables from Race Conditions and Show Your Variables Thread Intentions

by DavesApps

A way to catch / prevent race conditions in multithreaded code

All Articles

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Synchronization

Understanding the SynchronizationContext in .NET with C#

28 Jul 2020 by honey the codewitch

Take control of which thread your code gets executed on, and how it does

.NET

All-Topics

Dev

synchronize

synchronization

threads

NTP/SNTP v4/v3 Server/Client C++

2 Mar 2024 by JadBenAutho

Efficient and standalone library for NTP server/client utilizing pure C++

Await vs. Wait Analogies and TaskCompletionSource

13 Nov 2023 by David Deley

Explain by analogy the difference between a Synchronous Wait and an Asynchronous await

synchronization

Unified Concurrency I - Introduction

24 Mar 2019 by ipavlu

The Cross-Platform Object-Oriented approach to Synchronization Primitives for .NET and .NET Core based on one shared pattern between two interfaces for General Threading and Async/Await.

ThreadGuard - C# Protect Your Variables from Race Conditions and Show Your Variables Thread Intentions

15 Apr 2023 by DavesApps

A way to catch / prevent race conditions in multithreaded code

.NET

synchronization

compiler

FreeRTOS Thread Pack: Create Multithreaded IoT Code The Easy Way

27 Feb 2021 by honey the codewitch

Using a popular RTOS to enable easy multithreading on your IoT gadgets

The Simplest Implementation of a Reader-Writer Lock for .NET

24 Jan 2022 by ryanovic

An implementation of a basic Reader-Writer lock using only the System.Threading.Monitor class

.NET

synchronization

Develop onedrive desktop client using C#

17 May 2017 by Afzaal Ahmad Zeeshan

Since, you already have a web application why don't you just go away and create an API in your own application; if I had to do this, I would definitely, do it like this. This would have various benefits, you won't need to expose your API keys for application to everyone who uses your...

synchronization

OneDrive

Unified Concurrency IV - Going Cross-platform

24 Mar 2019 by ipavlu

The Cross-Platform Object-Oriented approach to Synchronization Primitives for .NET and .NET Core based on one shared pattern between two interfaces for General Threading and Async/Await.

Which better architecture in symmetric bettwen databases transfer data ?

15 Aug 2016 by KarstenK

It is better to send some batches as transactions and get a commit that they are saved/done and than proceed. You need to protect against any failures, like network timeout or any other, like invalid data. It is very important that the integrity of the data is ensured. Transactions need a commit...

Fix issue with custom response ".NET core API gateway ocelot - middleware"

15 Feb 2021 by Richard Deeming

//We need to read the response stream from the beginning... response.Body.Seek(0, SeekOrigin.Begin); //...and copy it into a string string text = await new StreamReader(response.Body).ReadToEndAsync(); text = CustomRes(text);...

C# test threads and synchronized methods

24 Sep 2021 by Member 12885549

I have to check unsynchronized and synchronized methods and I decided to do that with following problem: let's say there're two purses and I am adding money to one, , adding to other. When thread is not synchronized I expect not correct values...

synchronization

threads

Do I need to mark STD::ATOMIC with VOLATILE?

4 Jul 2016 by Shvetsov Evgeniy

I am previously used both volatilce cv AND std::atomic class separtaley, now i'm wonder, should i am combine them in order to ensure the proper access?In general, assuming i have some global-static atomic flag, whether it would be std::atomic OR std::atomic_flag, doesn't really matter...

Do I need to mark STD::ATOMIC with VOLATILE?

4 Jul 2016 by KarstenK

Yes. And you should implement both operators. Pay attention, that the volatile type needs some syncronization details to ensure atomic access.

Which better architecture in symmetric bettwen databases transfer data ?

15 Aug 2016 by Mahmoud_Gamal

Specs Big data with minimum 10 thousand transaction in 10 h and 300 nodes at first stage every table in symmetric scope has update insert delete trigger architecture methods 1-one corp send data via direct DB Connection with to other mediators (nodes) (one service) 2-one corp send...

How do I sync dropbox with local folder programmatically using C#

16 Feb 2017 by Garth J Lancaster

Your question isn't clear as to whether you want to write a client from scratch or use an existing client - iirc, Dropbox has a client you can install on your machine to sync a folder to the cloudIf you with to build your own client, then you're looking at something like...

synchronization

DropBox

Destroying a global object

27 Mar 2017 by Jochen Arndt

Why should a thread delete a global object?Objects should be only deleted by the owning thread. With global objects this is probably the main thread.Because it contains a mutex, there should be no need to delete the object. Just let it exist during the lifetime of the application.If...

C++98

synchronization

multi-threading

I can't see end of microsoft.synchronization.syncorchestrator.synchronize()

21 Jun 2017 by soulessing

I try use the Microsoft.Synchronization.SyncOrchestrator.Synchronize() for Mirror my source database instance To my destination database(using sql server 2014, VS 2017). Always I can see successfully end of Synchronize(), When the Synchronization is First time. But After I change the...

synchronization

Microsoft

Is it possible to set a flag in database while Microsoft sync framework is downloading and applying the changes to local database?

4 Jan 2018 by Sachin Makwana

I'm working on a project, where I need to sync the databases [i.e. Remote-DB and Local-DB]. for this I'm using microsoft sync framework. I'm using Download and then Upload method to sync the databases. While Download method I'm able to get the dataset of a table. I want to set a flag...

SQL

synchronization

Reading two files - back and forth synchronization

23 Sep 2017 by Member 13426014

I'm writing a program that creates two threads. Each thread is responsible for reading through one text file, with one char on each line. The first is formatted like: h 0 h 0 ... The second is formatted like: 0 i 0 i 0 i Sometimes there can be multiple letters after each other, or multiple...

synchronization

Reading two files - back and forth synchronization

23 Sep 2017 by Patrice T

First thing to do is to use the debugger and make sure everything is as expected. Inspect variables as they change. Check everything until only the mutex remain as explanation of problem. There is a tool that allow you to see what your code is doing, its name is debugger. It is also a great...

synchronization

Is it possible to set a flag in database while Microsoft sync framework is downloading and applying the changes to local database?

4 Jan 2018 by RDBurmon

Its possible but not through flag, you will get separate table which Sync framework updates in-between the sync activity In order for SQL Server to track the changes made to the database, the database is modified to add a table with the _tracking suffix for each table to be synchronized, plus...

SQL

synchronization

C# dotnetbar two listboxadv sync scroll not working

28 May 2018 by Member 13801581

i have two ListBoxAdv1 and ListBoxAdv2 and i want sync them scroll i used this code and just shown scrolled up or down but didn't update screen and items in another ListBoxAdv what should i do? please help What I have tried: i try this: private void listBoxAdv1_Scroll(object sender,...

C#7.0

synchronization

Scrollbar

C# dotnetbar two listboxadv sync scroll not working

28 May 2018 by Member 13801581

thanks for many response! i find solution: bool Scrolling = true; private void listBoxAdv1_Scroll(object sender, ScrollEventArgs e) { if (Scrolling == true) { Scrolling = false; listBoxAdv2.BeginUpdate(); ...

C#7.0

synchronization

Scrollbar

How to compare schema and data of two different databases

3 Oct 2018 by #realJSOP

Getting a schema for an entire database (which I seriously doubt is what you really want) requires quite a bit of planning and code, especially if you also want to get all of the related database components associated with that database. The answer to your question is WHOLLY outside the scope of...

SQL

synchronization

schema

Mutual exclusion vs synchronization

20 Oct 2018 by @k5hu

I came across these terms and I'm a bit confused about the differences. What I have tried: While searching for explanations I found few more terms like "Hold and Wait", "No preemption", "critical section" which made me more confused. Could anyone explain me the differences among Mutual...

Mutual exclusion vs synchronization

20 Oct 2018 by Richard MacCutchan

This is how you do it; Mutual Exclusion - Google Search[^]

C# WPF multithreading backgroundworker loading ..gif image as login

13 Dec 2018 by Gerry Schmitz

Yes; you display the (new) .gif in the "ProgressChanged" handler (because it runs on the caller's UI thread versus DoWork which "is" the background worker thread). And you have to call "ReportProgress" (to invoke ProgressChanged) from DoWork; it doesn't run by itself.

How do I update and sync from an active directory to oracle

29 May 2019 by Gerry Schmitz

Quote: It has to be web-based and preferably in Java. You need to do a "feasibility study", and then decide on the technology.

IPC between .NET 5 preview and native C applications on linux - synchronization

26 Aug 2020 by chrispdraycott

I am looking at IPC between .NET and C on Linux. I have managed to get some shared memory working using: C shm_open and mmap C# MemoryMappedFile I need a mechanism though to be able to synchronize the changes between my .NET application and...

IPC between .NET 5 preview and native C applications on linux - synchronization

26 Aug 2020 by Jeltz1

Using a byte or two in shared memory as a variable for a state machine defining which part C / .Net gets access at what times is most likely your best option. Assuming you have a multi-thread CPU at your disposal, there is no great difficulty...

Wpf MVVM: failed to update label value by synchronizationcontext

21 Oct 2020 by DoingWork

I am opening WPF Window from Winforms application in manuItem_ClickedHandler. Step 1: In Constructor of ViewModel I am creating thread and doing some work. In callback event, Value of control is updated successfully. Step 2: I closes this WPF...

How to implement multiple buffers in producer-consumer problem?

9 Jan 2021 by Muhammedcan Pirinççi

Let's say I have 3 kinds of bakery shops.I wanna have a buffer for each one of them.With that way i can control producing-consuming for each bakery shops. How can I implement it to c language with Pthreads? Thanks in advance What I have tried:...

How to implement multiple buffers in producer-consumer problem?

9 Jan 2021 by KarstenK

at first you must learn and understand the basic of C and multi-threading is an advanced theme. Looks like soome pthread tutorial. You can imagine it as some persons are in the kitchen and are cooking together. The biggest problem is to explain...

Fix issue with custom response ".NET core API gateway ocelot - middleware"

15 Feb 2021 by Dev Mo

Good day, I have an issue with a custom response in API Gateway Ocelot with Middleware. inside FormatResponse(context.Response) I change response for specific endpoint and I see the new response on debug but I receive the original Response in...

C# test threads and synchronized methods

24 Sep 2021 by OriginalGriff

Why should the result be 10 and 200? You start coinThread before you start purseThread1 - so if your system has spare cores it's very likely that coinThread will complete before purseThread1 even starts! Try adding some Console.WriteLine calls...

synchronization

threads

C# test threads and synchronized methods

24 Sep 2021 by mirajanata

The results might be incorrect when two or more threads read and write into the same value or object (memory) without synchronization. Your code creates 2 threads. Each of them works with different object (purse1, purse2). There's no memory...

synchronization

threads

C# test threads and synchronized methods

24 Sep 2021 by Richard MacCutchan

Console.WriteLine($"Purse 1: {purse1.Total}"); Console.WriteLine($"Purse 2: {purse1.Total}" + Environment.NewLine); ^ should be purse2

synchronization

threads

C# test threads and synchronized methods

24 Sep 2021 by Dave Kreskowiak

Why would the results be 10 and 200? Look at your Add() code in the Purse class. You're adding from 1 to

synchronization

threads

C# test threads and synchronized methods

24 Sep 2021 by George Swan

I am not sure what you are trying to do but if you wish to update a shared variable from different threads, here are a couple of suggestions. For simple operations like addition or incrementing use the Interlocked class, it is very efficient. ...

synchronization

threads

An Alternative to the Await vs. Wait Analogies and TaskCompletionSource Article

7 Jan 2024 by George Swan

An explanation of the code execution pathways in an application that employs a TaskCreationSource to correlate activity between its threads

.NET

synchronization

Programming Concurrency in C++: Part 2

3 Mar 2019 by MehreenTahir

This article is a continuation of Programming Concurrency in C++ Part 1. We will discuss synchronization, future and promises along with async and with that, will sum up the introduction of concurrency in C++.

Class to Synchronize Multithread Access to Multiple Objects

29 Jan 2023 by Oleg_100

Synchronize access to multiple objects by name (string)

.NET

synchronization

multi-threading

Using a Win32 Mutex to Figure Out if an Application Instance is the First One

21 Oct 2022 by Bruno van Dooren

This article shows how to use a win32 mutex during application startup to figure out if an application instance is the first one.

C++

Win32

synchronization

Unified Concurrency II - Benchmarking Methodologies

6 May 2021 by ipavlu

The goal of the Unified Concurrency is to unify access to different synchronization primitives in object-oriented fashion with one pattern and two interfaces for general and async/await methods.

Use Both Cores on an ESP32: Easy Synchronization with Esp32SynchronizationContext

25 Feb 2021 by honey the codewitch

Take a page from .NET and enjoy an easy way to safely pass information between threads on an ESP32

Which better architecture in symmetric bettwen databases transfer data ?

15 Aug 2016 by Tacitonitus

Method 1 is superior for the following reasons:1) You can use threads to handle concurrency which, in Windows at least (you didn't specify the OS), is a highly developed, trustworthy, and efficient mechanism for handling either synchronous or asynchronous task allocation. Your method 2, on...

Unified Concurrency III - Cross-benchmarking

21 Jan 2021 by ipavlu

The goal of the Unified Concurrency is to unify access to different synchronization primitives in object-oriented fashion with one pattern and two interfaces for general and async/await methods.

Multithreading in C#

1 Mar 2022 by Uladzislau Baryshchyk

An overview of multithreading in C#

How to implement multiple buffers in producer-consumer problem?

9 Jan 2021 by CPallini

You may find (just Google for) many pthread code samples about the producer-consumer problem. They could be your starting point.

Thread Synchronization between Worker Threads

16 Apr 2021 by Chris_Green

Get an event fired by Thread A to execute in the context of Thread B

Abstract Lock Pattern To Selectively Synchronize An Implementation ("IOC" and DRY)

30 Sep 2018 by Steven Coco

This illustrates a simple pattern that provides a lock that can always be invoked; and may be a no-op for a non-synchronized implementation.

Fix issue with custom response ".NET core API gateway ocelot - middleware"

15 Feb 2021 by RickZeeland

Here is a good example of how to use Async and Tasks: Asynchronous programming in C# | Microsoft Docs[^] Also see: Best~model-for-async-programming-in-net[^]

How do I sync dropbox with local folder programmatically using C#

15 Feb 2017 by Srusti Thakkar

Hello All!I need to create a client that will sync local folders to a remote server and i am using dropbox or any other client already created.What are your opinions about what should i use? I have looked on MS Sync Framework but i still haven't found anyone using it over the internet.Any...

synchronization

DropBox

Destroying a global object

27 Mar 2017 by Chandan_srivastava

I have a global object which is shared by different threads. To provide the synchronization, I have added a mutex inside the global object.Mutex will be locked by a thread before accessing the data inside the object.Everything is fine except delete.If a thread is locking the mutex and...

C++98

synchronization

multi-threading

Develop onedrive desktop client using C#

17 May 2017 by Srusti Thakkar

Hello, I want to develop a client just like OneDrive Desktop Client. I have created Web Application. In that I have used OneDrive Rest API to perform basic operations. Now I want to develop a desktop client and perform same action just like OneDrive Desktop Client do. How can I start to...

synchronization

OneDrive

How to compare schema and data of two different databases

3 Oct 2018 by Muhammad Hashir Abid

how to compare schema and data of two different databases and synchronize the latest changes in target database through c shrap Code. Note: i'm working on Desktop Application with Sql Server 2014 Explanation: i'm working with Desktop application on visual studio 2013 and sql server 2014. i want...

SQL

synchronization

schema

C# WPF multithreading backgroundworker loading ..gif image as login

13 Dec 2018 by TheBigBearNow

So far I haven’t had luck with my loading gif image when I am loading/checking my database connection I click my login button and I get no errors in my login I start my gif but I also start it in the dowork and progress section im not sure which section is actually right I know not to mess wih...