I have an application that reads from a very large binary file. It never has to read the whole file, only small parts of it, which are spreaded accross the file. For example, in VB6 code: ReDim Data(26) as Integer Get #1, 2536, Data ReDim Data(79) as Integer Get #1, 13504, Data ReDim Data(51) as Integer Get #1, 39827, Data Etc.. Fo...
How to automatic backup a folder or multiple network folder to another computer. We try always sync. can any other software is better? please suggest. ...
Hi all, My application needs continuous network connectivity. I'm currently using Apple's "Reachability" class to check reachability at the start of the app. I need to poll the network in order to check its functionality. What's the good practice to achieve this? ...
Hi. Im trying to accessing my ftp server without no luck, at my friends home network. I think it's blocked, but maybe not. < 220---------- Welcome to Pure-FTPd [privsep] [TLS] ---------- < 220-You are user number 17 of 100 allowed. < 220-Local time is now 10:03. Server port: 21. < 220-This is a private system - No anonymous login < 220...
I try to send data using UDP protocol. Is it possible to understand when UDP dont send data? Thanks a lot. I try to a servis which run into client. And they send their IP an port number in one second. Server listen them and if they dont send this message it understand that client is not connected. I do this but I cant understand when t...
Hi, I have written an app that should ping (use isReachable) for all the clients on the subnet the host sits on but I'm getting strange results when it is run on an XP machine (SP2) it fails to get all the hosts. It appears to be linked to threading as if I put in a join and effectively force the app to use one thread it works. It works...
Hello. I wish to write a bootable program in assembler that would be capable of sending and receiving network packets. I do not wish to use any libraries, I'd like to create it all by myself (and also learn while doing so). Unfortunately, I was unable to find any information regarding communication with the network card on the lowest lev...
I'm writing a software application that I'd like to use FFTW (an FFT math algorithm with GPL license) as part of the back-end. I won't modify FFTW and I won't distribute the code to an end customer of mine. However, I will place my software application back-end on a server that client computers access over the Internet. All of the mate...
I have been attempting to learn tcp/udp for so long now, I am on the brink of giving up completely and never attempting it again, I have read every tutorial there is but can never get anything to work. Tutorials either stop once they tell me how to connect and dont explain how it can be used or do not provide enough source code. Is there...
i'm reading some code and i've come across this line socket.error errno.EWOULDBLOCK can anyone tell me what the conditions have to be to raise this error? ...
There's a really old thread from 2008 that mentioned NSUrlConnection is quite buggy and leaks a lot. Is this still the case? Is there any Cocoa Touch class that already implements the chunked upload or am I better off using the CF classes? ...
Is 0.0.0.0 a valid IP address? I want my program to be able to store it as an indication that no address is in use, but this won't work if it's actually valid. ...
I am a noob in netoworks stuff, but I must to get to know something. When I have list o networkInterface rmnet0 eth0 lo //etc. How can I tell, which kind of connection (wifi/bluethoof/UMTS) use which networkInterface? ...
Is there any way to set QoS value for socket in Silverlight? I'd like to open a second connection on a background thread to send some large amount of a data, but with a lower possible network priority. Just without eating the bandwidth of other (let's say "realtime") connections. I meant something like this: http://msdn.microsoft.com/...
So we have: AL for audio, GL for graphics, CV for vision, FFMPEG for encoding But what library is as respectful, simple, intuitive as them for Network data streaming? What I need is generally cross-platform (at least Win + Lin) C library with simple to use but quite deep API for TCP data transmitting, receiving. ...
Hey guys I had some questions about udp networking. First of all how can two computers that are on separate networks connect to each other? I know that you can do this with port forwarding but I know things like xbox live don't work through that. How is this possible and is there a way to obtain an address to another computer on a separa...
My career goal is to work as a software developer for an online stock broker website or for a stock exchange. I am curious about the protocols used by the stock network. For example, what protocol does an online stock broker website use to send a sell order to a stock exchange? Thanks. ...
Hi, What is the basic usage of CIDR in networking and also give me the benefit over SubNetting. ...
I want to create a fairly simple mathematical model that describes usage patterns and performance trade-offs in a system. The system behaves as follows: clients periodically issue multi-cast packets to a network of hosts any host that receives the packet, responds with a unicast answer directly the initiating host caches the responses...
Hi, I'm designing a distributed system in which a single-threaded server processes perform a CPU intensive operation. These operations are triggered by ZeroMQ network messages. If the single-threaded process is performing the CPU intensive work, will the I/O (ZeroMQ sockets) block? Thanks! ...