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by: kelkel |
last post by:
Hi all,
I got a question here which about using queue. i have create a class of queue.
Public Sub Add(ByVal data As Object)
SyncLock Me
_Data.Enqueue(data)
Monitor.Pulse(Me)
End SyncLock
End Sub
Public Function GetNext() As Object
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by: Bob Day |
last post by:
Ok, I have done a lot of reading(of the newsgroup answers, help files and
MSDN articles) of synclock.
I understand what you are saying in the newsgroup, and it is very helpful.
It does, however, directly contradict what the VS 2003 help file says, and
it seems that various posters to my original questions on Synclock disagree
with each other. It seems, that the best practice is to use sysnlock to
protect code, not variables. That...
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by: Jeff Stewart |
last post by:
Specifically, I don't understand the parameter that Synclock accepts. How
is a reference type a lockable entity? What -is- a reference type? Is it a
number? Is it a value at a specific memory location? Does synclocking a
reference type put an entry in a catalog somewhere in the system, and it's
removed on the "end synclock" statement? Are there any guidelines for
creating synclock objects?
I've found a surprisingly small amount of...
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by: SD |
last post by:
I have a public object that I only want one thread to access at a time.
However the access to this object is not limited to one procedure. Will
SyncLock work in this case? If not what options do I have?
Thanks
SD
Code in Module
public A as Collection
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by: fred |
last post by:
I have a VB application that is using MS Access as its database.
To avoid connection delays the application creates one connection to the
database at start-up and maintains that single connection throughout until
the application closes.
I now want to use multithreading to improve the feel of the application but
I need some help understanding Synclock. The aim here is to prevent any two
threads from trying to use the same connection at the...
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by: Justin |
last post by:
I am having trouble figuring out the best what to accomplish this fairly
simple goal. I have a program that controls a 1-wire network and I can only
make requests to it one at a time, but I will need to make new requests
(from multiple threads) before the first one is done. My idea is to use a
Queue to add requests to and then have another process (thread) that will
simply wait for the Queue to not be empty and then process requests one...
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by: fniles |
last post by:
I am using VB.NET 2003 and a socket control to receive and sending data to
clients.
As I receive data in 1 thread, I put it into an arraylist, and then I remove
the data from arraylist and send it to the client.
Before adding data to the arraylist, I check if the depth of the arraylist
is longer than iMaxQueueDepth, and if it is, I clear the arraylist.
Is it possible that while I am clearing the arraylist, the ThreadMain at the
same time...
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by: buu |
last post by:
If I have a code like:
TRY
SYNCLOCK Object1
//some code
END SYNCLOCK
CATCH
END TRY
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by: fniles |
last post by:
I am using VB.NET 2005 and thread.
In each thread I open a database connection and before it exits the thread I
close the database connection.
Is there any way for me to count how many threads are still working so that
if I know there is say 50 threads are working, I want to hold on and do not
create any more thread until the previous threads are finished ?
Thank you
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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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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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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...
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by: jinu1996 |
last post by:
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...
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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,...
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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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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...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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