setsockopt

Using the TCP/C mode software, the connection between the two sides in the connection idle state, if either side of the accidental crash, when the machine, network cable disconnect or router failure, the other side can not know that the TCP

A tcp disconnection exception occurs when a sudden power failure or network cable disconnection occurs. If no data transmission or communication is processed by both parties, the connection is disconnected. In general, in order to prevent socket

Finally, I wrote it out. To tell the truth, it took the longest time. I encountered many problems and read many programs ,, now it seems that the 10004 error is generated because the content in the IP header is incorrect. The IP header is basically

TCP abnormal disconnection refers to a sudden power outage, directly unplug the network cable, and so on, if the two parties do not communicate data transmission and other processing, can not know that the connection has been disconnected.In the

Original: http://blog.chinaunix.net/uid-28458801-id-5085099.html 11.3 Multicast Unicast is used for end-to-end communication between two hosts, and broadcasts are used for data communication on all hosts on the entire LAN for a host. Unicast and

I would like to thank you for posting the gdy files from csdn.Original post address: http://community.csdn.net/Expert/topic/3592/3592436.xml? Temp =. 2238275. I am sorry for the constant thanks from coolmei25 (Mei Sheng). belowI have written some of

First, set the keepalive attribute of the socket.# Include "/usr/include/Linux/tcp. H"# Include "/usr/include/Linux/socket. H"//// Keepalive implementation, in seconds// The following code requires an ace. If it does not contain an ace, change the

Under Windows, "abnormal disconnect" refers to the TCP connection is not graceful way to disconnect, such as network cable failure, such as the reasons for physical links, as well as sudden host power outages, and other reasons there are two ways to

/* Set the socket option to periodically detect the connectivity heartbeat packet and Xinbo. It is mainly used for persistent connections. * Parameter: socket, 1 or 0 enabled, first interval, two intervals, number of disconnections */void

At present, I have a case study on the Xinbo function. I have some experiences in using sol_socket and so_keepalive. I 'd like to write it out and share it with you. There is a detailed description of how to about the sol_socket option so_keepalive.

  Keywords: TCP/IP, socket, errno The following lists several Socket errors that are common in the connection between the customer and the service process, and analyzes the causes. I will try again later.  ECONNABORTED This error is described as

First, I declare that this is not what I wrote, but what I found, but what others wrote is quite good. Copy codeThe Code is as follows: # UDP multicast examples, Hugo Vincent, 2005-05-14. Import socket Def send (data, port = 50000, addr = '192.1.100

A python script that can send multicast data on LINUX. In fact, it is not too difficult to compile. The specific code is as follows: first declare that this is not what I wrote, but what I found, but what others wrote is quite good. The code is as

Kernel version: 2.6.34 When sending a message, you can call the function setsockopt () to set the appropriate options, this article mainly analyzes the generation of IP options, send and receive the implementation of the process, selected LSRR as

1.Socket Address multiplexingint getsockopt (int sockfd, int level, int optname, void *optval, socklen_t *optlen); int setsockopt (int sockfd, int lev El, int optname, const void *optval, socklen_t optlen);The server uses

This article describes how to implement port multiplexing in Python as follows: # Coding = utf-8import socketimport sysimport selectimport threadinghost = '2017. 168.99.100 'port = 80 class Thread (threading. thread): def _ init _ (self, buf, sockfd)

Author: a fish in water (powercc@21cn.com) "Abnormal disconnection" indicates that TCP connections are not broken in an elegant way, such as the causes of network cable faults and other physical links, as well as sudden host power outages.There are

Author: a fish in water (powercc@21cn.com) "Abnormal disconnection" indicates that TCP connections are not broken in an elegant way, such as the causes of network cable faults and other physical links, as well as sudden host power outages.There

If (ls [I]. listen) {/* change backlog via listen () * // change the number of listeners if (listen (ls [I]. fd, ls [I]. backlog) =-1) {// ls [I]. fd 10, ls [I]. backlog 511 ngx_log_error (NGX_LOG_ALERT, cycle-> log, ngx_socket_errno, "listen () to %

If (ls [I]. listen) {/* changebacklogvialisten () * // change the number of listeners if (listen (ls [I]. fd, ls [I]. backlog)-1 ){/... If (ls [I]. listen) {/* change backlog via listen () * // change the number of listeners if (listen (ls [I]. fd,