You're trying this the wrong way round. The server should have one socket (IP-adress and port) on which it accepts connections and then it will spawn a separate thread for each client that connects. If you were to do it your way you'd need either 40 IP adresses and listening on one designated...

Windows

programming

UDP

network

sockets

Python's Hand in Redirecting Command Output Over the Network

26 Jul 2016 by Zehaie M. Hailu

Python lends itself to the development of multi-threaded GUI and network applications.

[C#] Own protocol communication

6 Feb 2011 by Espen Harlinn

You could do worse than starting out reading this book:http://www.cs.wustl.edu/~schmidt/POSA/POSA2/[^]It will not give you the answer, but it will enable you to understand how these things are usually done. Since you are writing a thesis, I would guess that you will have to understand the...

.NET

sockets

UDP

How can i make Raw socket which send udp packets

29 Sep 2012 by pasztorpisti

As far as I know right we had full raw socket support in windows beginning with win2000 and ending with WinXP SP1. From WinXP SP2 only raw UDP sockets are available and even raw UDP sockets have some extra restrictions. More about these limitations here:...

Is Threading the best way to handle 40 Clients at a time in UDP Server or is there any other better way?

28 Mar 2013 by nv3

The main question is: Do you need to preserve context information from one to the next UPD requestion message?If not, i.e. if every UDP request contains all the information that is needed to answer it, there is no other reason to dispatch the requests to multiple threads than using the power...

Possible alogrithms of handling 40 clients in a single udp server

15 Apr 2013 by CPallini

The other, quite obvious, approach would be creating a thread per client (well, two threads per client).The adavantage would be a somewhat simpler code.

IDTP, An Innovative Communication Protocol

18 Oct 2013 by Huang Geng Geng

If you are looking for a tool

.NET C# SNMP UDP Socket Bug

22 Jul 2014 by nitrous_007

Please help with this problem be patient and read through to the end. I will really appreciate it!!!I am creating 4 sockets on a computer with 4 network adapters and binding each socket to 1 network adapter. Network Adapter 1 is at 192.168.100.10. Socket 1 binds to Network Adapter...

QUDP - A Reliable UDP Protocol

13 Nov 2021 by Mark Beharrell

A queue based UDP protocol

C++

Dev

UDP

Send UDP packet in C#

15 Apr 2010 by DaveAuld

Use the UDPClient class, here is the example straight from MSDN;// This constructor arbitrarily assigns the local port number.UdpClient udpClient = new UdpClient(11000); try{ udpClient.Connect("www.contoso.com", 11000); // Sends a message to the host to which you...

UDP

sockets

server

Getting remote IP of a UDP packet without Endreceive command

13 May 2010 by Chris Kolkman

What you need is a "state" class you can pass along. This state class can hold a reference to the EndPoint passed to the UdpClient. I'm not sure how well the example holds up with BeginReceive (especially with calling it again to continue listening) as I've only really used BeginReceiveFrom -...

UDP

read data on UDP port using thread in race condition

18 Mar 2011 by Sergey Alexandrovich Kryukov

Using sleep time is pointless. In your case, you should create a thread from the very beginning (not by click) and keep it sleeping (actually, in wait state not using any CPU time until awaken) using thread synchronization primitives, like System.Threading.EventWaitHandle. More advanced use...

UDP

threads

Peer to Peer File Transfer application, TCP or UDP to use?

5 Jan 2012 by Sridhar Patnayak

Dear Abhishek ,Transmission Control Protocol is a connection-oriented protocol, which means that it requires handshaking to set up end-to-end communications. Once a connection is set up user data may be sent bi-directionally over the connection. So if the network is VPN,Lan or Intranet,...

How to make the communicate using udp protocol

20 Feb 2013 by Jochen Arndt

This depends on how your LAN is connected to the internet. When the router that connects your LAN to the internet uses NAT (Network Address Translation), you must setup port forwarding for incoming packets on your router. This requires also that the computer on the internet knows the public...

C++

UDP

Blocking sockets v/s non-blocking sockets in multi-threaded single server multiple client application.

12 May 2013 by Sergey Alexandrovich Kryukov

I think that using threads with blocking sockets instead of asynchronous API is much better. In most cases, communication is sequential in its nature and the flow of operations is logically independent from other threads. Therefore, using a separate thread for each communication channel (in case...

File transfer 1Mb and above Over TCP/IP or UDP

3 Jan 2014 by Rob Philpott

I think this line is the problem:int receivedBytesLen = clientSock.Receive(clientData);In that I think you are expecting to receive the whole data sent in this single call. It doesn't work like that (I've been caught out myself with this). This will return the data in chunks as it is...

TCP/IP

UDP

difference between Wireshark and application-level UDP read

21 Jul 2015 by User 59241

You have probably realised that you are starting to go around in circles. Wireshark uses pcap https://en.wikipedia.org/wiki/Pcap[^] which is a very low level packet sniffing API. It accesses the hardware directly and bypasses the TCP stack altogether. This makes it useful for diagnosing network...

C++

UDP

What is the best IP solution in C++

7 Nov 2016 by Albert Holguin

Well, if you're not sure, TCP/IP should usually be your default go-to. That's because it has a lot of neat built-in overhead that's very useful, such as retransmissions and error checking, that UDP doesn't have. UDP should be used when you need high-speed transmissions where you don't mind...

C++

TCP/IP

UDP

Fragmenting large data into small packets using C

4 Apr 2018 by Jochen Arndt

Your code will not work because the image data might contain the JPEG markers too (here: the FF D9 end of image marker). So you have to write a parser that gets also the segment length for all non stand alone markers. When such a segment is processed, pass all bytes of the length without...

UDP

Calling a function when UDP data recieved.

20 Nov 2018 by Afzaal Ahmad Zeeshan

You need to attach the async callback1, that receives the data for your socket, on its behalf and then alerts you that data has been received. You cannot attach a receive function, as it might be blocking. You can argue, that, // Your receive call is useless as well, and so would be this, ...

Arduino

UDP

Getting remote IP of a UDP packet without Endreceive command

13 May 2010 by kivanc.imer

Hello, I am trying to use connectionless async UDP listener.I need to get Remote Endpoint to use in processes and i can get remote Endpoint info with udpClient.EndReceive(ar, IP_Remote_End) command.But as you can see I am stopping the listener for a few milisecs.I lost a few packets in this...

networking

UDP

How to transfer files with UDP

13 May 2010 by yasser.enpc

My question is:How can I transfer a (large) file in UDP. Because I can't transfer an image lager than 50 kb with UDP. I am using C#. Please help me thanks

UDP

networking

file

[C#] Own protocol communication

6 Feb 2011 by #realJSOP

You picked a programming project for your thesis, and you don't even LIKE programming? Beyond that, writing a thesis involves YOUR OWN research, not ours. research it, LEARN how to do it, and then write your thesis.

.NET

sockets

UDP

Is there a way to capture UDP Streams with WPF or Silverlight.

22 Jun 2011 by #realJSOP

You can use WCF to stream with the UDP protocol, and last I checked, WCF was compatible both WPF and Silverlight.

WPF

UDP

C# inefficient streaming to the hard disk

10 Jan 2012 by Richard MacCutchan

Why are you messing about with the data in this way? You receive a stream of bytes from the network so all you need to do is write that stream (whatever length you receive) to the disk. Don't try converting to a string (what does that achieve?) and don't write four bytes as an int.

binary

streaming

UDP

High CPU Utilization

5 Mar 2012 by Dave Kreskowiak

Your thread tasks are running the same checks thousands of times a second, with no code in there at all that gives up control and waits.Look at what your dequeue method is doing. It's going to continuously allocate TransactionSeqNum, grab a lock, execute another loop if there are...

UDP

multi-threading

threads

How can i make Raw socket which send udp packets

29 Sep 2012 by Kuthuparakkal

Follow : A simple UDP time server and client for beginners[^]

UDP Server works once, then won't compile

31 Oct 2012 by Ed Nutting

Hi there,Are you disconnecting/stopping listening from the port properly? It doesn't look like you are. If you aren't, the port will look like it is already being listened after you close your program and thus when you try to run your program a second time. Since two things can't listen on...

C#4.0

sockets

UDP

How to handle when a Client or Server is Down in a UDP Application

27 Mar 2013 by ZurdoDev

I did this many years ago in VB6 but as I recall an exception was thrown if they could not contact the machine name. However, if the machine is online but your app is not listening then what I did was implement a polling situation so if I did not get a response back in a certain amount of time...

Windows

Win32

UDP

How to handle when a Client or Server is Down in a UDP Application

27 Mar 2013 by Jochen Arndt

This depends on the used communication. When the other side sends packets in regular intervals, you can stop sending packets when no data are received for a specific time and resume sending upon the next receive. If no data are send in regular intervals, just send them. Such packets are...

Windows

Win32

UDP

How to handle when a Client or Server is Down in a UDP Application

27 Mar 2013 by H.Brydon

You can set up your own handshake protocol on top of UDP. In other words, have the receiving machine send a response that the sender will process.

Windows

Win32

UDP

Non blocking socket in c

14 Apr 2013 by parths

I couldn't see any calls setting the socket to work in non-blocking mode. Did you take a look at ioctl[^] (optionally ioctlsocket[^] for win32) with the FIOASYNC and/or FIOBNIO[^] options?Here's the first tut link[^] I got from google. You might find better ones.I hope this...

sockets

UDP

Non blocking socket in c

14 Apr 2013 by pasztorpisti

You have to turn the socket into nonblocking mode even if you are using select() and its friends. On some versions of windows select() is able to wake up spuriously because the network stack receives some data but when you actually start reading the socket it can find out that the crc of the...

sockets

UDP

Possible alogrithms of handling 40 clients in a single udp server

15 Apr 2013 by JackDingler

Your approach is reasonable. Keep the sending and receiving threads simple.Use queues to buffer the data for the clients. Create a queue for each client. You could have a pool of threads, then processing incoming packets from those queues. As CPallini mentions, you could create a...

CPU Usage 100% when creating 3 threads and using WSAWaitForMultipleEvents() and WSAEnumNetworkEvents()

7 May 2013 by KarstenK

i guess your threads are blocking the network api.why arent you making some outout or use your debugger...

Making udp socket non-blocking

7 May 2013 by KarstenK

Do the networking stuff in a own thread. Use PostThreadMessage to communicate with your main thread.

CPU Usage 100% when creating 3 threads and using WSAWaitForMultipleEvents() and WSAEnumNetworkEvents()

7 May 2013 by Jochen Arndt

Did you report errors and terminate the thread when a function call fails?There is at least one wrong call that should result in an error return (best case) or undefined behaviour (worst case):WSAWaitForMultipleEvents(2, &hEvent, FALSE, WSA_INFINITE, FALSE);You are passing 2 for the...

Blocking sockets v/s non-blocking sockets in multi-threaded single server multiple client application.

12 May 2013 by ayesha hassan

I had been working on a Server Client aplication where Server is going to service(sendto + receivefrom)'x' number of Clients at a time. For this purpose, I have created 'x' number of threads on Server side so that each thread is dadicated to one single client. Inside each thread there is a...

UDP SOCKET question about two socket comparison

7 Feb 2014 by Mattias Högström

iAddrLen is not a length. It is a badly named variable.It is a Socket descriptor, but they use it as an indirect counter of number of sockets.A SOCKET is just an integer.Select can be used to look if one can read or write to sockets.This implementation of select has 5...

sockets

UDP

Faster data receive and save in UDP communication

1 Apr 2015 by Richard MacCutchan

You should not use UDP for such an application, unless you include your own message checking. UDP[^] is not reliable, as messages can appear in any order and are not guaranteed to be delivered. If the data is important then you should be using TCP.

C++

MFC

UDP

How to minimize UDP Packet Loss

28 Apr 2015 by Pascal-78

The solution was too simple:increase the Socket Option ReCeiVe BUFfer (also named SO_RCVBUF).by default, this buffer is 8kb, in my case it is the size of one UDP packet. That's mean, when my client reads the packet it must be done before the server sends a new packet or the new packet...

Windows

UDP

C# check client before sending data via UDP

2 Jul 2015 by Dave Kreskowiak

Why are you even using UDP? From what you describe, you cannot lose data.UDP doesn't guarantee the data gets to the destination and doesn't even guarantee the packets show up in the correct order!What you describe requires TCP, not UDP.UDP is used to broadcast connectionless data...

sockets

UDP

setting priority of threads

20 Jul 2015 by Sergey Alexandrovich Kryukov

From your explanation, I see no need in changing any priorities.The effect of thread (and, don't forget, also the process priority which affects combined priority of the process's thread) in Windows it totally probabilistic. At the same time, boosting the priority to the extremes, for a...

setting priority of threads

20 Jul 2015 by KarstenK

The UDP reading is important for getting input and NOT missing it, so I would use normal priority. I prefer using the THREAD_PRIORITY_BELOW_NORMAL flag for non-foreground threads. If you go to low, they wont run but wait. There is no reason for going to low and you better test it under realistic...

difference between Wireshark and application-level UDP read

21 Jul 2015 by Kornfeld Eliyahu Peter

Wireshark is an open-source tool, so you can get its code and learn it to understand, how exactly the goals are fulfilled...https://www.wireshark.org/[^]

C++

UDP

Firewall stops c# application with udp socet

20 Feb 2016 by Maciej Los

I'd suggest to read this: Open a port in Windows Firewall - Windows Help[^]. If it won't help, you should provide more details, as Richard and Caroline have mentioned in the comments to your question.

firewall

UDP

Linux C/C++ UDP sockets

20 May 2016 by Richard MacCutchan

You already posted this question at How do I use UDP sockets in C [LINUX][^] and received feedback. Please do not repost.

I am not getting any message from remote system in UDP java programming

10 Apr 2017 by Jochen Arndt

Your system sends to this address: InetSocketAddress sd=new InetSocketAddress("192.168.8.101",40000); The other system sends to: InetSocketAddress sd=new InetSocketAddress("192.168.8.101",50000); Did you see it now? The other systems sends the data to himself on port 50000. You have to specify...

Java

Chat

UDP

C++ lost UDP packets that in real they are delayed

8 Jan 2018 by Jochen Arndt

When using localhost (loopback), there should be no packets lost and no significant delay. So the problem may be sourced by your implementation (probably the server code that handles receiving). Network receiving code should be event driven running in an own thread. Then it can react...

sockets

UDP

Fragmenting large data into small packets using C

4 Apr 2018 by KarstenK

For sending over the network the splitting of the binary data is enough. If you want smaller jpeg than you must use higher compression or split the decompressed picture in sub pictures and than compress. The article CXImage shows these techniques.

UDP

How do I know my packets are successfully reached the specified UDP?

21 Aug 2018 by Jochen Arndt

UDP is a Stateless protocol - Wikipedia[^] where you don't have any feedback. If you need some kind of acknowledgement, it has to be implemented in the top protocol. That means you have to define such a protocol or use an existing one and implement it in code. But it is usually better to use...

Java

UDP

UDP/TCP video streaming

20 Apr 2021 by Richard MacCutchan

The main issue is that UDP messages are not guaranteed to be delivered, or delivered in the correct order. Whereas TCP message are guaranteed to be delivered and in the correct order. So if you use UDP you need to add your own message control to...

TCP/IP

UDP

UDP talker combined client and server in C

14 Jun 2021 by Greg Utas

Combining a server and client probably isn't appropriate. They should run on different threads, which should also be separated from their work and GUI threads, respectively. All of them can be in the same .exe, though. Although it may be more...

sockets

UDP

Connect client to server

10 May 2022 by Richard MacCutchan

Study the tutorials: Lesson: All About Sockets (The Java™ Tutorials > Custom Networking)[^]

Java

UDP

Why this udp socket not work when I run it in pc outside the network ?

26 Sep 2022 by Death Smoke

I'm trying to make a connection between two computers both of them are using tp-link adapter , but i'm not receving anything from client . #include #include using namespace std; int main() { ...

Trouble getting udp multicast to send

16 Mar 2012 by Faultyboy

Hi there,I was wondering if someone wouldn't mind looking at a bit of my code and help me by pointing out what I'm doing wrong. I am trying to send and receive a multicast in the same application. When i was designing the app I got it to send and receive fine on the loopback so the bulk of...

UDP

Simple UDP sniffer using VB2008 Express Edition

15 Mar 2010 by ALEXZUPO

I'm looking for a simple example to put in a TextBox a packet sniffer from a UDP socket.Thanks

sockets

UDP

Send UDP packet in C#

14 Apr 2010 by Antal Dominik

Hello everybody!I have a game server (WoW).I want my players to download my custom patches to the game.I've done a program that checks for update/downloading things.I want my program to send a packet to my game server if player have all my patches. I dont need any response from the...

UDP

sockets

server

Socket Async UDP - How to handle client crash

19 May 2010 by eco2709

Greetings all.I have almost no experience with Network programming on C#.I have an Asynchronous UDP socket on a server that sends data to clients.If one of the client crashes i get the next Socket Error:Message = "An existing connection was forcibly closed by the remote...

sockets

UDP

UDP Packet loss

19 Jul 2010 by luigi_dipalo

Hi,I've a big problem:i'm sending UDP pkt from a micro to a pc.In the pkt I send there is a counter. I send 1Kbyte pkt at 100 Hz.When I receive the pkt from the pc I lose some pkt. I see that because I increase a counter every time I receive one of them and this number is different from...

Windows

UDP

server

UDP Packet loss

20 Jul 2010 by Sauro Viti

From User Datagram Protocol[^]):UDP uses a simple transmission model without implicit hand-shaking dialogues for guaranteeing reliability, ordering, or data integrity. Thus, UDP provides an unreliable service and datagrams may arrive out of order, appear duplicated, or go missing without...

Windows

UDP

server

Socket Async UDP - How to handle client crash

3 Aug 2010 by Jarno Burger

My thingies that i found out with the same probs , these are my hints :1I found out that visual studio debug can do a break in debugmode , but that i wouldnt matter so much if this would happen. cause the rest was still connected.2I placed the beginrecieve also in a try...

sockets

UDP

Getting remote IP of a UDP packet without Endreceive command

6 Aug 2010 by DaveInsurgent

Adding an answer here since I found this, it did not help, but eventually I worked it out.Use the BeginReceiveMessageFrom method, and before you Bind(), for good measure, set the following option:s.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.PacketInformation, true);This...

networking

UDP

UDP Send and Receive

14 Sep 2010 by techtechtech

How to send data (through UDP) from windows to linux (UDP Send and Receive) using threads in VB.NET

Linux

UDP

VB 2010 express and UDP comms via .NET socket

14 Oct 2010 by Stevekodos

HiVB 2010 express question on socket dataI am trying to send and recieve data over ethernet on UDP, I have had some success but there is a data access niggly I just can't seem to get past and a variable definition I just don't understand.1. What I don't understand Dim...

sockets

UDP

VB 2010 express and UDP comms via .NET socket

29 Oct 2010 by eg gigo

[Byte]() : Array of bytelikedim x() as string 'Array of stringor dim x as string() '

sockets

UDP

Converting TCP client server to UDP

9 Nov 2010 by David Knechtges

Not exactly certain of your questions, but I will answer given my use of the UDP protocol in my apps.I have a server and many clients on a LAN that use UDP for comms. The server broadcasts data to the clients every so often, and the clients also broadcast data to the server every so often....

TCP/IP

UDP

udp broadcast bandwith

20 Dec 2010 by kelavar

hello,i have program that using udp protocol with broadcasting the problem is that i want speed send data be in 21 percent of 1 GiG bandwith of my networkbut the max band with my program can use is 9 percent of 1GiG can anyone help me please ?hello,i have program that using udp protocol...

UDP

use multi nic in xp

20 Dec 2010 by kelavar

hello,i have program that using udp protocol and broadcasting ,my computer have 2 nic ,how i can use synchronic two nic in my program for sending data?in windows xp or server 2003.thank you

service

UDP

udp broadcast bandwith

20 Dec 2010 by Dave Kreskowiak

You cannot just command the NIC to use 205 of the available bandwidth. If you're only using 9%, you're code isn't generating enough data fast enough to utilize the network that much.

UDP

udp broadcast release mode

20 Dec 2010 by kelavar

hello,I have program that use receiving data in udp protocol and broadcast ,the program work good in debug mode ,but in release mode it loss data,help me. thank you

UDP

udp broadcast release mode

20 Dec 2010 by #realJSOP

UDP is not the protocol you want to use if you want to ensure that you get ALL of the data. You actually want to use TCP/IP.

UDP

udp broadcast bandwith

20 Dec 2010 by kelavar

the size of packet that i send is 1472 .is it possible to send packet with size more than 1472?

UDP

udp broadcast release mode

25 Dec 2010 by kelavar

BOOL CUDPServerSocket::Connect(){ char psz[1024]; addrinfo local; struct addrinfo hints; BOOL Result = FALSE; try { ////************************************************************** WSAData data; WORD wVersion = MAKEWORD(2,0); int...

UDP

speed up udp sendto

29 Dec 2010 by Electron Shepherd

Take a look at the TCP_NODELAY socket option, and reseach the Nagle algorithm. It might help, but it may be that the speed is due to factors outside of your program's control (QoS implemented in by the network hardware, for example)

Use multinic in Windows Server 2003

1 Jan 2011 by kelavar

Hello,I have a program that uses UPD and broadcasting. My computer has two NICs. How can I utilize both of my NICs in my program for sending data? My system is Windows XP or Windows Server 2003.Thank you!

C++

network

UDP

Use multinic in Windows Server 2003

1 Jan 2011 by Manfred Rudolf Bihy

Sounds to me as if you wanted to send your data utilizing both network cards for a connection. Is his correct?If it is you would want to read this:Link aggregation aka Trunking[^]Configuring a system so sending uses both nics enables you to double your bandwidth.Best...

C++

network

UDP

UDP Client help

10 Jan 2011 by evildarkvirus

Hi,I have a problem, I am very bad at programming and have a UDP client to write.The client software should take the IP address and port number of the server it is talking to (poss on command line).Then: * It reads a line of text from standard input, * sends this text in a...

UDP

UDP Client help

10 Jan 2011 by HimanshuJoshi

Read this[^] article, and look into the "Client Program" section of it. Also look at Winsock[^] for further details.

UDP

snmp agent creation

1 Feb 2011 by Indivara

You give no details of what language, etc, so this may be of no use. Take a look anyway:How to develop a SNMP extension agent DLL[^]-- update --Another oneSNMP library[^](Next time - search first, then ask!)

UDP

[C#] Own protocol communication

6 Feb 2011 by pegaz9

Hi, i am from Poland and i am not fluent English.I am writting M.A thesis. Supervisor want that i programmed protocol communication but i doesnt know how to do it. It protocol should be do/has:- used socket(UDP protocol)- consisted of package, for example: init, bye ping, message,...

.NET

sockets

UDP

turning nagle off when on a unicast socket

21 Jun 2011 by Manfred Rudolf Bihy

First you construct a UDP socket and then try to set a TCP option. Don't you kind of think that error would have to be anticipated? Nagle Algorithm[^] is for TCP and has nothing to do with UDP. See here for the options available for UDP:...

C++

Windows

UDP

Is there a way to capture UDP Streams with WPF or Silverlight.

22 Jun 2011 by Kasun Koswattha

Hi All,We are using VLC player to stream UDP streams. But We want want to achieve this in WPF and Silverlight. Is there a way to achieve this with WPF or Silverlight without using VLC. Thanks in Advance.

WPF

UDP

Can not communicate with UDP service in local network after windows update

14 Nov 2011 by hoernchenmeister

Hello world,I am currently facing an ugly problem after our admin installed windows updates.We have a service running on a server in our local network.It registers itself on startup in a database, writing its ip and the number of a dynamically assigned port for UDP communication.Clients...

Win7

Windows

UDP

Can not communicate with UDP service in local network after windows update

15 Nov 2011 by hoernchenmeister

Unfortunately our admin installed a virtual network adapter (Oracle Virtual Box) on all the Win 7 64bit machines together with the updates... So it wasn't obvious to spot the problem right away... Disabling the virtual network adapter did the job and everything started to work again.

Win7

Windows

UDP

Peer to Peer File Transfer application, TCP or UDP to use?

5 Jan 2012 by Abhishek Nandgaonkar

heyy guys.. m implementing PEER TO PEER FILE TRANSFER..What protocol should I use? TCP or UDP? And why?

Peer to Peer File Transfer application, TCP or UDP to use?

5 Jan 2012 by Abhishek Nandgaonkar

Yes, agreed. But what i want is precisely how easy or difficult is it to implement either of the options.Also, if you have an experience of making an application of similar kind, i can get a better answer.

C# inefficient streaming to the hard disk

10 Jan 2012 by GabeA

I am currently working on a program that receives UDP packets of size 1460 bytes per packet and continuously streams the bytes to the hard drive of my PC. Currently, my program can only receive and stream 84 packets before data loss occurs. I need my program to be realtime with a fast sampling...

binary

streaming

UDP

C# inefficient streaming to the hard disk

10 Jan 2012 by CodyDaemon

I few things which should help on the speed front...Open the file and keep it open, and just write data to it as it comes in, and then close the file when the program exits. Open and closing files for each packet is just overhead which can easily removed.Why are you writing each 'int' by...

binary

streaming

UDP

High CPU Utilization

5 Mar 2012 by Sameer Alomari

Hello,I have a listener thread that listens to UDP transactions and en-queue them into _TransactionQ, I also have another thread that de-queue the transactions from _TransactionQ, it will do a lot of processing to confirm the correct order of the transactions, it also has a logic to detect...

UDP

multi-threading

threads

Using UdpClient Inside Net.Tcp Service

20 Mar 2012 by Andre Trollip

Hi Guys,I'm at my wits end.I have a self hosting (console app) WCF service using Net.Tcp binding with all default settings.Inside one of the service methods, I use a UdpClient to send a udp packet to another unrelated IP/Port.When the method returns, I get that boilerplate...

WCF

TCP/IP

UDP

Trouble getting udp multicast to send

21 Mar 2012 by Faultyboy

Ok I got it... :) For anyone who is interested this is the code to send and receive a UDP broadcast from the same app.. you have to specify the source port and the destination port for sending and receiving..Public EndPoint As New IPEndPoint(IPAddress.Parse("255.255.255.255"), 1001) ''Send...

UDP

Create UDP Streamer in Visual C++

14 Apr 2012 by Richard MacCutchan

Google for "C++ sockets" there are plenty of samples available.

VisualC++

UDP

Long delays when sending packets over 1KB via UDP

19 May 2012 by amkom

Hi!I have a C++ class that sends UDP packets using Winsock2 (kind of a wrapper).I noticed that sending packets smaller than 1KB takes 0ms delay (measured by GetTickCount()). When the size is over 1KB the timing becomes almost 3seconds!!!Does anyone have any idea what can cause this...

C++/CLI

Windows

UDP

Receive and Parse a broadcasted IP in C#

15 Jul 2012 by GabeA

Hello,I am trying to write a C# code that will wait for any broadcasted udp message. This message will be an IP Address. After receiving the message, I want to parse the IP address received and then continue to receive udp packets from that IP Address. I already have working code that can...

UDP

Getting remote IP of a UDP packet without Endreceive command

15 Aug 2012 by T__12

You could use Socket class and its BeginReceiveFrom method to get remote EP.

networking

UDP

How can i make Raw socket which send udp packets

29 Sep 2012 by Cyberwarfare

Hey code-project, I am wanting to ask this question, for quite sometime anyway the question: How can i create an Raw socket which sends an lot of UDP packets in c++ under Windows? If so please show me an code of how to do it or an tutorial. Thanks In advance, ...

How to transfer files with UDP

26 Oct 2012 by wwwllg

you can look at www.goodudx.com,it can trans file with udp.udx is tcp-over-udp.

UDP

networking

file