socket am2

In general, the socket can be divided into TCP sockets and UDP sockets, further, can also be divided into server-side sockets and client sockets. In this section we first focus on the TCP socket server-side Socket,java in the ServerSocket class corresponding to it, this class is mainly used to create a socket service o

Server: # Define recv_posted 0# Define send_posted 1 Char buffer [1024]; Typedef struct _ per_handle_data{Socket socket; // This structure is used to send a socket to the port} Per_handle_data, * lper_handle_data; Typedef struct _ per_io_data{Overlapped;Wsabuf wsabuffer;DWORD recvbyte, sendbyte;Int operationtype; } Per_io_data, * lper_io_data; //*************

HP-socket is a set of universal high-performance Windows Socket component packages, including the server component (iocp model) and the client component (event select model). It is widely used in Windows TCP communication systems. HP-socket fully encapsulates the communication layer, and upper-layer applications do not need to pay attention to any details of the

Client : Create socket (socket) Connecting to a server (connect) Communication (SEND,RECV or Write,read) Close socket (closesocket) Example code:intMainintargcChar*argv[]) { Const intBuf_size = -; Wsadata WSD; //wsadata VariableSOCKET Shost;//Server SocketsSockaddr_in servaddr;//Server Address CharBuf[buf_size];//Receive

Solution:For a socket object, use the write method (writebyte (), writeutfbytes (), and other methods .) first write data to the cache area, and then use the flush () method to send data. for xmlsocket objects, use the send () method. Discussion:The methods for sending data from the socket and xmlsocket classes to the socket server are different. Let's first look

Solve the problem of Chinese character string encoding during socket communication between Java and VB and C/C ++/OC I encountered a Java encoding character set using UTF-8 encoding characters using 2 + characters I testedCodeAs follows: System. out. println ("UTF-8: A->" + "". getbytes ("UTF-8 "). length); system. out. println ("UTF-8: Hi->" + "hi ". getbytes ("UTF-8 "). length); system. out. println ("gb2312: A->" + "". getbytes ("gb2312 "). len

. Net platform, Socket communication protocol middleware design ideas (with source code), socket communication protocol On the. net platform, there are many ways to implement communication processing (see the table below), each of which has its own advantages and disadvantages: Serial number Implementation Method Features 1 WCF Advantages: good encapsulation and convenience. Di

Python 37th days -- exception -- socket, 37th days -- socket Exception Handling 1 #! Usr/bin/env python 2 #-*-coding: UTF-8-*-3 # Author calmyan 4 5 list_l = ['G ', 'H'] 6 data = {'1': '3'} 7 try: 8 # list_l [3] # IndexError: list index out of range 9 data ['2q'] 10 bytes t IndexError as e: # The list subscript exceeds the boundary 11 print (e) 12 bytes t KeyError as e: # dictionary key does not exist 13 pr

Synchronous Client Socket Sample The following sample program creates a client that connects to the server. The client is generated with a synchronous socket, so the execution of the client application is suspended until the server returns a response. The application sends a string to the server, and then displays the string returned by the server in the console. C# Using System; Using System.Net; Using S

Socket -- accept big data, socket -- accept dataI. Simple ssh Functions 　　1.1 implement functions In the previous blog, we have implemented a simple small program similar to the Linux Server ssh function. You can enter a system command to return the command running result. Today we will start with this, let's see how the socket can accept a large amount of data.

As we mentioned in section 1st, socket is an int file descriptor (an abstract descriptor in Winsock). We operate on the socket by sending instructions to this descriptor. This is the idea of C language. In the object-oriented thinking, it is best that socket itself is an object, and various methods are developed by the object itself. It is not difficult to encaps

Java TCP/IP Socket programming Series [Java TCP/IP Socket] Message frame and resolution in application protocol [Java TCP/IP Socket] Build and parse custom protocol messages [Java TCP/IP Socket] a tcp server based on a thread pool [Java TCP/IP Socket] deadlock ca

Solution One:It is possible that some programs have been installed that have modified Winsock, and using the netsh winsock reset command to repair the Winsock restart computer!Solution Two:Add the Win32disableacceptex tag to the httpd.conf file as follows:Threadsperchild 1000Maxrequestsperchild 10000Acceptfilter http None#AcceptFilter HTTPS None this line of Apache 2.4.1 can not be connected to 443, so I did not set, in the Apache 2.4.3 version of the normal operationSolution Three:1. Network Ne

Flash Player Security Policy and port problems have always been a headache for web development of socket (xmlsocket). After a day of research yesterday, we finally found a solution, I will briefly describe the solution here!In fact, flash help files are also explained: http://help.adobe.com/zh_CN/AS3LCR/Flash_10.0/flash/system/Security.html#loadPolicyFile (). The security. loadpolicyfile ("xmlsocket: // localhost: 110") is used to load the security po

Http://blogold.chinaunix.net/u1/43206/showart_518836.htmlSocket INADDR_ANY listens to the 0.0.0.0 address. The socket only binds the port so that the route table decides which ip address to transfer.INADDR_ANY indicates the address 0.0.0.0. In fact, this address indicates an uncertain address, "all addresses", or "any address ".Generally, if you want to create a network server, you need to notify the server operating system at a specific address xxx.

Socket network programming first, socket first First, I would like to summarize some of the books required for job interviews: I suddenly felt very steadfast in my mind, "the beauty of programming", "The sword refers to offer", "Unix environment programming", "Unix network programming", and "POSIX multi-thread programming, I am no longer confused. I finally know what I can do after I graduated from the comp

socket.setsockopt(level, optname, value)↑↑↑→[so_keepalive,↑so_linger,↑so_rcvbuf,↑so_sndbuf,↑so_rcvlowat, So_sndlowat,↑so_rcvtimeo, So_sndtimeo,↑SO_REUSEADDR]According to the difference of the level value of the parameter optionSocket options are divided into 3 major categories1. Universal socket Option: Sol_socket2.IP option: Ipproto_ip in order to get the parameters of the IP layer3.TCP option: ipproto_tcp in order to get the parameters of the TCP la

Today, qtcreator is installed in Ubuntu to test whether it can be used. As a result, a problem occurs during the test. After a simple compilation, F5 compilation appears in gnome-terminal. Cannot connect creator comm socket/tmp/qt_temp.u14973/stub-socket: no such file or directory So I checked that QT cannot be executed using gnome-terminal, and X-team is required. So I thought of the solution: Find tool

Reference 1 click the Open linkReference 2 Click the Open linkCodeClient.cpp: Defines the entry point of the console application. #include "stdafx.h" #include Using the C language socket to enable the Windows PC to communicate with the FTP server---socket implementation FTP client