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by: Anatoly |
last post by:
In our application I need to detemine if there is a internet connection
valid.
So I build a windows service which every minute creates telnet connection
against some host and port.
If I do connect to this host I know that internet connection is OK.
The problem: after few days CPU usage growing up to 50% for this service.
After restart it's problem gone for another 2,3 days.
This is a code:
public static bool IsBrowseable(string IP, int...
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by: Bonj |
last post by:
I've been following a socket programming tutorial to make a simple TCP
communication program, seemingly without hitches, it appears to work fine.
However the structure of it is to have a server listening for requests from
a client using listen(), and when one connects, it communicates with that
client but only that one. It doesn't listen for more requests.
What I'm wondering is can I have a server that continually listens for
requests...
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by: Bonj |
last post by:
I've been following a socket programming tutorial to make a simple TCP
communication program, seemingly without hitches, it appears to work fine.
However the structure of it is to have a server listening for requests from
a client using listen(), and when one connects, it communicates with that
client but only that one. It doesn't listen for more requests.
What I'm wondering is can I have a server that continually listens for
requests...
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by: J C |
last post by:
Hi,
I'm using UDPClient to make a simple DNS server. I notice that
intermittently and unpredictibly I get:
Unhandled Exception: System.Net.Sockets.SocketException: An existing
connection
was forcibly closed by the remote host
at System.Net.Sockets.Socket.ReceiveFrom(Byte buffer, Int32 offset,
Int32 s
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by: Dan Ritchie |
last post by:
I've got a client/server app that I used to send large amounts of data via
UDP to the client. We use it in various scenarios, one of which includes
rendering a media file on the client as it is transferred via the underlying
UDP transport. In this scenario it is very important to keep CPU usage as
low as possible.
Both the client and server were originally written in C++, but I've
re-written the client in C#, partly to simplify it, but...
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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: 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: 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: 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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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...
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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();...
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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: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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