Concurrency patterns in C++

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"A Fundamental Turn Toward Concurrency in Software"

by: aurora | last post by:

Hello! Just gone though an article via Slashdot titled "The Free Lunch Is Over: A Fundamental Turn Toward Concurrency in Software" http://www.gotw.ca/publications/concurrency-ddj.htm]. It argues that the continous CPU performance gain we've seen is finally over. And that future gain would primary be in the area of software concurrency taking advantage hyperthreading and multicore architectures. Perhaps something the Python interpreter...

Python

2298

MS Access concurrency exception

by: Charlie Williams | last post by:

I am having difficulty performing updates and deletions on an Access database using the Update() method of the OleDBDataAdapter. I can insert rows without a problem, but I get a concurrency exception when trying to update or delete. I am quite sure that no concurrency conflicts actually exist. Is there a reason why the data adapter I am using may have a different row version that the database that it got its data from?

.NET Framework

2450

vb.net data adapters - concurrency and insert comands

by: Suzanne | last post by:

Hi All I'm having problems getting my data adapter to throw a concurrency exception with an INSERT command. I want to throw a concurrency exception if an attempt is made to enter a row into tb_table when a row with the same int_UID already exists in there. Here is my stored procedure: if not exists (select int_UID from tb_table where int_UID = @aint_UID)

.NET Framework

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Concurrency Handling In Stored Procedures

by: xAvailx | last post by:

I have a requirement that requires detection of rows deleted/updated by other processes. My business objects call stored procedures to create, read, update, delete data in a SQL Server 2000 data store. I've done a fair amount of research on concurrency handling in newsgroups and other resources. Below is what I've come up as a standard for handling concurrency thru stored procedures. I am sharing with everyone so I can get some comments...

Microsoft SQL Server

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New concurrency error

by: Robert Schuldenfrei | last post by:

Dear NG, I was about to "improve" concurrency checking with a Timestamp when I discovered that my current code is not working. After about a day of beating my head against the wall, I am turning to the NG in hopes that someone can spot what I am doing wrong. Key to this technique working is the SQL UPDATE statement. It is designed to fail

C# / C Sharp

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Concurrency question

by: Bob | last post by:

While testing my my program I came up with a consistency exception. My program consists of three datagridviews, One called dgvPostes which is the parent grid and its two children,one called dgvPlans and the other dgvTanks. What happens is as follows. I will either create or edit a record in the datagridview dgvPlans and call the Updatedb procedure (code below). The first save works OK. Then when that is done, on the same record I will try...

Visual Basic .NET

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concurrency question

by: William E Voorhees | last post by:

I'm updating an Access database in a windows multi-user environment. I'm using disconnected data I read data from an Access Data table to a data object I update the data object from a windows form I save the data from the data object to the Access Data table using a data adapter as follows:

Visual Basic .NET

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VS 2003, false data concurrency error

by: John | last post by:

Hi I have a vs 2003 winform data app. All the data access code has been generated using the data adapter wizard and then pasted into the app. The problem I have is that I am getting a data concurrency error on mydataadapter.update() method. I know that there is no data concurrency problem as I am the only user testing the app. Obviously the error is misleading. What can I do from here to fix this problem? Thanks

Visual Basic .NET

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Handling concurrency violations

by: John | last post by:

Hi I have developed the following logic to handle db concurrency violations. I just wonder if someone can tell me if it is correct or if I need a different approach.Would love to know how pros handle it. Thanks Regards

Visual Basic .NET

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What is ONU?

by: marktang | last post by:

ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...

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Maximizing Business Potential: The Nexus of Website Design and Digital Marketing

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In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...

Online Marketing

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Discussion: How does Zigbee compare with other wireless protocols in smart home applications?

by: tracyyun | last post by:

Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...

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AI Job Threat for Devs

by: agi2029 | last post by:

Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...

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Access Europe - Using VBA to create a class based on a table - Wed 1 May

by: isladogs | last post by:

The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...

Microsoft Access / VBA

6899

Couldn’t get equations in html when convert word .docx file to html file in C#.

by: conductexam | last post by:

I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...

C# / C Sharp

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Trying to create a lan-to-lan vpn between two differents networks

by: TSSRALBI | last post by:

Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...

Networking - Hardware / Configuration

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Windows Forms - .Net 8.0

by: adsilva | last post by:

A Windows Forms form does not have the event Unload, like VB6. What one acts like?

Visual Basic .NET

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transfer the data from one system to another through ip address

by: 6302768590 | last post by:

Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system

C# / C Sharp