Hi
I am writing a simple server to monitor ports. The problem is I don't know
how to make it listen on multiple ports. It creates the first socket,
listens, than accepts and of course the accept call blocks, so it does not
return to create socket for the other ports. I am doing this in windows, so
using 'fcntl' to do non blocking won't work.
Any suggestions? I can paste the code if need be.
Thanks 1 4837
In article <0f************ ********@comcas t.com>, Jim Kipp
<jk****@comcast .net> wrote: Hi I am writing a simple server to monitor ports. The problem is I don't know how to make it listen on multiple ports. It creates the first socket, listens, than accepts and of course the accept call blocks, so it does not return to create socket for the other ports. I am doing this in windows, so using 'fcntl' to do non blocking won't work. Any suggestions? I can paste the code if need be.
Thanks
Under Unix, you would use the select function, or the OO
interface-to-select IO::Select. Hopefully, these work under windows. In
particular, see "perldoc IO::Select" for an example of how to monitor
input from several sockets.
FYI: this newsgroup is defunct. Try comp.lang.perl. misc in the future. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
by: Dmitry Akselrod |
last post by:
Sockets Programming Question:
I have two applications. One is a server, one is a client. However, both
listen on certain ports for communication. The server is written in vb.net
(framework v.1.0) and the client is written in vb6 sp5 because vb6 uses far
less resources.
|
by: 0to60 |
last post by:
I have a question about socket programming in general.
Exactly what happens behind the scenes when I one socket connects to a
different socket in listen mode? Using the dotnet framework, I create a
socket, bind it to a port, put it in listen mode, and then n sockets can
connect to it. The code:
Socket newSocket = listeningSocket.Accept();
returns a socket. I can communicate on newSocket, and listeningSocket goes
|
by: Steven |
last post by:
Hi,
Thanks all for you help with my "socket and buffer size" question.
I have decided to use async ones, and my code is working pretty well.
But i still have a non-answered question:
Is it a problem if all the client are connected and sending a large quantity
of bytes simultaneously to the same port of the server ?
|
by: Valleriani |
last post by:
Right Now I've been working on a text based game for fun. It was working fine but they I relized that you need to shut/close the ports. Before I was just opening ports and not shutting them, no problems because it will just go to the next port. But this way is not correct. I started shutting the ports but now I get the error of the 'user' not being in the correct socket when its checking etc. For example: User 1 logs in, user 2 logs in as well....
|
by: jasonsgeiger |
last post by:
From: "Factor" <jasonsgeiger@gmail.com>
Newsgroups: microsoft.public.in.csharp
Subject: Multiple Clients, One port
Date: Wed, 19 Apr 2006 09:36:02 -0700
I'm been working with sockets for a short while now using a server
program a former coworker started. The program listens on a port for
incomming connections. When a valid connection is made (we send this
init string into the socket from the clients) the server closes the
socket so...
| |
by: verge |
last post by:
hello everyone!
how's it going? like everyone in here im in need of some help and good
friendship along the way...take a look at this:
//MODIFIED SO IT DEALS WITH WINDOWS FTP USING ACTIVE CONNECTION
//IMPORTANT: the logic is NOT complete, the program works only once and
disconnects or freeze
//One needs to modify or rewrite the program so it is fully functional
for LIST and RETR
|
by: Mark |
last post by:
I am working on a Windows service application that will listen on multiple IPs and ports e.g. port 25, 110 etc. As far as I could see the EndPoint only contains one IP and a port. How is it possible to listen on multiple IPs and multiple ports of an IP? Would there be separate socket for each combination of IP and ports?
Also, what is the best way for coding a listener -- an indefinite loop, or there could be any other better way to do this?...
|
by: Abubakar |
last post by:
Hi,
I'm working on a sockets app (using all those connect, socket, recv, send
stuff). There is one problem on just one of many pcs i deal with. This pc,
sometimes my app crashes on it, which is pretty usual cuz of application
bugs and I fix them of course. But the problem is that the ports r left open
when the app crashes. I see the list from entering the *netstat -a -o*
command at the command prompt. Its shows that the ports r still in...
|
by: jcprince |
last post by:
Hi
Not sure I can do what I'm trying to do without using a 3rd party
component like Dart. I need to build a windows service to create a
socket connection on an IBM mainframe using an IP and port
combination. No problem there.
However, due to the expected volume (at least 20x10K streams per
second in each direction), the mainframe sysadmin has requested the
service use multiple 'conversations' within the single IP connection.
The...
|
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...
|
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...
| |
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,...
|
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...
|
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...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
|
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
|
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
| |
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...
| |