setsockopt

UDP is widely used in network applications that require mutual data transmission. For example, QQ uses the UDP protocol. In the case of poor network quality, packet loss is very serious when UDP is used, but UDP occupies less resources and processes

UDP is a user datagram transmission protocol. It is located at the TCPIP transport layer and is a connectionless protocol, the packet sent by QQ cannot be sure whether it has completely reached the other end. UDP is widely used in network

Recently, a cache_put_latency metric was added to the service, which gave a fright. It was found that the data sent to memcachedput was about 10 KB, and latency was about 7 ms, which was hard to understand, so it took some effort to find the cause.

Whether goto statements should be used A goto statement is also known as an unconditional transfer statement , which is usually used in conjunction with a conditional statement to change the flow of the program, allowing the program to go

This article mainly introduces the basic knowledge of python network programming. For more information, see John Goerzen, author of "python network programming Basics ". Part 1 underlying network learning Python provides all the methods to access

This article describes how to connect Python to Redis. Redis is a high-performance, memory-based database, for more information, see The python redis module used when I wrote the zabbix storm job monitoring script today. it has been useful before,

(i) Basic knowledge The maximum size of the IPV4 datagram is 65535 (16 bits), including the IPv4 head. IPV6 datagram Maximum size is 65575, including 40 bytes of IPV4 header MTU, which is specified by hardware, such as the Ethernet

Socket options are typically set through the following functions: GetSockOpt and SETSOCKOPT functions; fcntl functions; IOCTL functions #include /* See NOTES */ #include int getsockopt ( int sockfd int

Today, the feedback from the questionnaire clarifies the direction of improvement. As the team leader, I am responsible for the overall project progress management and quality control, the main direction in 10 days is:1, continuous new version of

Original address: Http://blog.csdn.net/yusiguyuan/article/details/21439633#1536434-tsina-1-74921-66a1f5d8f89e9ad52626f6f40fdeadaaTCP/IP Details--an example of the relationship between a Send/receive buffer and a sliding window protocol.An example of

Canbus ID Filter and MaskCANBUS is a two-wire, Half-duplex, bus based LAN System that's ' collision free '.Data is broadcast onto the bus-there are NO SUCH thng as A Point-to-point CONNECTION as with data LANs.All nodes receive any broadcast data

In the actual software development work, often involves the socket programming, namely uses the socket to complete the message interaction and the command execution. In this paper, a C program is presented to explain the entire message execution

Login, the following log will appear: HTMLcode ...... [SunAug1609: 20: Apache suspended, Apache maintenance, master please, thank you Then, the following log is displayed: HTML code ...... [Sun Aug 16 09:20:45 2009] [notice] Parent: child

Learning book: John Goerzen, author of python network programming Basics Part 1 underlying network learning Python provides all the methods to access the Socket interface of the underlying operating system. These interfaces can provide flexible and

1. Advanced socket functions getsockopt and setsockopt Int getsockopt (INT sockfd, int level, int optname, void * optval, socklen_t * optlen)Int setsockopt (INT sockfd, int level, int optname, const void * optval, socklen_t * optlen) LevelSpecifies

Http://hi.baidu.com/ahtaria/blog/item/969ae4447eaa59076a63e57d.html Libpcap focuses on the BPF (BSD Packet Filter) packet filtering mechanism. BPF was designed in 1992 to solve the inefficiency of the existing filtering mechanism. The BPF procedure

The sending buffer of TCP socket is actually a queue of the struct sk_buff. We can call it a sending Buffer Queue, represented by the struct sock member sk_write_queue (struct sk_buf_head. Sk_write_queue is a struct type of struct sk_buff_head,

1. ICMP packets are encapsulated in IP packets for transmission.Understanding this is very important for later programming. Figure 03 shows the structure of IP data packets: Figure 03: Structure of IP data packets Traditionally, IP

The following describes how to learn the socket API through the simplest client/server program instance. The function of the echoser. C program is to read characters from the client and then direct the echo back. C ++ code 1

Reprint Please note: @ small Wuyi http://www.cnblogs.com/xiaowuyi Learning book: John goerzen, author of Python network programming BasicsPart 1 underlying network learningPython provides all the methods to access the socket interface of the