network-programming

问题 I am developing an online strategy game using .Net v2. Although the game is primarily strategic, it does have some tactical elements that require reasonable network performance. I plan to use TCP packets for strategic data and UDP packets for tactical data. {EDIT} I forgot to mention that I am leaning away from WCF and .NET 3+ for a couple of reasons. First, because I want to keep my download small and most of my customers already have .NET 2.0. Second, because I would like to have the option

问题 What does stub do on the server side ? And what is a skeleton ? This is a diagram from wikipedia. I installed stub both on the server machine and the client machine. I understand that stub helps in the networking on the client side but what does stub do on the server side ? Also in the above figure what does skeleton mean ? 回答1: look at the followed picture: To be short, stub and skeleton are counterparts in a web service setup. Skeleton belongs to service provider side and stub belongs to

问题 I have a situation where I need to send and receive information parallelly. My protocol can define a read port and a write port. I currently have the following code: public void Listen() { ThreadPool.SetMinThreads(50, 50); listener.Start(); while (true) { var context = new ListeningContext(listener.AcceptTcpClient(), WritePort); } } How can I create another listener from the TcpClient I am passing? 回答1: A TcpClient object wraps a NetworkStream object. You use the GetStream() method of

问题 I'm trying to enable service discovery in my client-server application using JmDNS. I fully understand service registry on the server side, with code that resembles this: JmDNS jmdns = JmDNS.create(localhost); jmdns.register(serviceInfo); However, I'm having trouble figuring out how to have my client retrieve the port number and IP address from the registered service and use this data to open a TCP connection. I've searched for examples of how to use JmDNS but to no avail. Can anyone here

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 9 months ago . I'm a good programmer, but I have zero network experience. Basically, I'd like to get into client-server networking. For example, I'd like to try getting a server process going which allows clients to connect over the internet and send pings to all of the other connected clients. Then maybe I'll try developing

问题 I am struggling to find a mechanism to send a request to the target server and when the socket has data to be read, pass the socket to another process for getting the data out. I came so far using epoll on Linux, to implement it to the point that i do the handshake, i send the request and the request arrives, then i pass the socket fd to another process for futher handling, i explicitly save the SSL Session using PEM_write_bio_SSL_SESSION and then read it using PEM_read_bio_SSL_SESSION and

问题 I am struggling to find a mechanism to send a request to the target server and when the socket has data to be read, pass the socket to another process for getting the data out. I came so far using epoll on Linux, to implement it to the point that i do the handshake, i send the request and the request arrives, then i pass the socket fd to another process for futher handling, i explicitly save the SSL Session using PEM_write_bio_SSL_SESSION and then read it using PEM_read_bio_SSL_SESSION and

问题 How do I get the IP address of the local machine using C code? If there are multiple Interfaces then I should be able to display the IP address of each interface. NOTE: Do not use any commands like ifconfig within C code to retrieve the IP address. 回答1: #include <stdio.h> #include <string.h> #include <sys/types.h> #include <sys/socket.h> #include <sys/ioctl.h> #include <netinet/in.h> #include <net/if.h> int main() { int fd; struct ifreq ifr; fd = socket(AF_INET, SOCK_DGRAM, 0); ifr.ifr_addr

问题 I have a BIG problem with the answer to this question Swap bits in c++ for a double Yet, this question is more or less what I search for: I receive a double from the network and I want to encoded it properly in my machine. In the case I receive an int I perform this code using ntohl : int * piData = reinterpret_cast<int*>((void*)pData); //manage endianness of incomming network data unsigned long ulValue = ntohl(*piData); int iValue = static_cast<int>(ulValue); But in the case I receive an

问题 i want to send raw bytes using Rubys TCPSocket-Class. Has someone a good example? I've tried it in this way, but it does not work :( require 'socket' host = '192.168.0.80' port = 102 s = TCPSocket.new(host, port) s.write [0x03, 0x00, 0x00, 0x16, 0x11, 0xE0, 0x00, 0x00, 0x00, 0x01, 0x00, 0xC1, 0x02, 0x02, 0x02, 0xC2, 0x02, 0x02, 0x02, 0xC0, 0x01, 0x0A ].pack('C') puts s.read s.close puts "exit" thanks :) 回答1: Try using a "*" after the format directive to eat all the elements in the list: s