lock statement - C# / C Sharp

Similar topics

by: Rich Sienkiewicz | last post by:

Some classes, like Queue and SortedList, have a Synchronized method which gives a thread safe wrapper object for these classes. But the lock() statement does the same thing. Is there any rules as to when to use one and not the other? For instance, if I wanted to remove an item in a SortedList, would it be better to lock() it or do it via the Synchronized wrapper? Why choose one over the other SortedList sl lock(sl sl.Remove(item) O

.NET Framework

11104

SET CURRENT LOCK TIMEOUT

by: harborboy76 | last post by:

Hi all, First of all, just want to let you know that I'm coming from Informix background, and we just recently migrated to DB2. It's been a great new learning experience. For the time being, I have some questions regarding LOCK TIMEOUT and its compatibility with LOCK MODE WAIT in INFOMIX. Last week, I just found out that the following statement was complied and built in Stored Procedure SET LOCK MODE TO WAIT 5;

DB2 Database

703

lock statement

by: Sunny | last post by:

Hi, I can not understend completely the lock statement. Actally what is locked: 1. the part of the code between {...} or 2. the object in lock() In the docs is written: for 1: The lock keyword marks a statement block as a critical section by obtaining the mutual-exclusion lock for a given object, executing a

C# / C Sharp

17822

Don't Lock Type Objects!

by: Nashat Wanly | last post by:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnaskdr/html/askgui06032003.asp Don't Lock Type Objects! Why Lock(typeof(ClassName)) or SyncLock GetType(ClassName) Is Bad Rico Mariani, performance architect for the Microsoft® .NET runtime and longtime Microsoft developer, mentioned to Dr. GUI in an e-mail conversation recently that a fairly common practice (and one that's, unfortunately, described in some of our...

C# / C Sharp

2668

Lock statement in C#, Is there an equivalent in VB.NET?

by: ThunderMusic | last post by:

Hi, The subject says it all. Is there an equivalent, in VB.NET, for the C# statement Lock(Object){} Thanks ThunderMusic

.NET Framework

15802

ibm db2 lock (row/table) status/indication

by: adri4n | last post by:

as wat ive mentioned in the title.. im would like to know whether the a particular record/table is being locked in my program. some of the methods which i would like to develop are as below: Lock(KEY, SQLCODE) - to create a lock. Returns 0 on success, 1 if a lock already exists and -1 on failure with SQLCODE. There is no necessity to use IsLock() for checking if a lock exists or not, just insert the record and check for

DB2 Database

11707

Deadlock found when trying to get lock (MySQL 5.0 with innodb)

by: cwho.work | last post by:

Hi! We are using apache ibatis with our MySQL 5.0 database (using innodb tables), in our web application running on Tomcat 5. Recently we started getting a number of errors relating to java.sql.SQLException: Deadlock found when trying to get lock; Try restarting transaction message from server: "Lock wait timeout exceeded; try restarting transaction"; We get such errors generally on inserts or updates while applying a

MySQL Database

3384

How to lock other threads

by: jeff.ranney | last post by:

Hi all. I wrote this C# code: lock(this) { / /write to a file }

C# / C Sharp

30357

When is "volatile" used instead of "lock" ?

by: Samuel R. Neff | last post by:

When is it appropriate to use "volatile" keyword? The docs simply state: " The volatile modifier is usually used for a field that is accessed by multiple threads without using the lock Statement (C# Reference) statement to serialize access. " But when is it better to use "volatile" instead of "lock" ?

C# / C Sharp

2821

Lock issues in db2

by: senthiltkp | last post by:

Hi, I'm new to DB2 and have little knowledge on database. i'm facing a Spin lock issue in db2.. Thread here am talking is Java thread..(Sepearte process) The spin Lock is acquired to ensure Same thread Can’t be stated again. In our Application each thread is mapped to row .So lock is acquired on a row.

DB2 Database

9685

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...

General

10461

Problem With Comparison Operator <=> in G++

by: Oralloy | last post by:

Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...

C / C++

10190

The easy way to turn off automatic updates for Windows 10/11

by: Hystou | last post by:

Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...

Windows Server

7555

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

6796

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

5447

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

5579

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

4122

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

3736

How to add payments to a PHP MySQL app.

by: muto222 | last post by:

How can i add a mobile payment intergratation into php mysql website.

PHP