recvmsg

Recvmsg and SENDMSG functions#include #include ssize_t send(int sockfd, const void *buf, size_t len, int flags);ssize_t sendto(int sockfd, const void *buf, size_t len, int flags, const struct sockaddr *dest_addr, socklen_t

These two functions are the most common I/O functions. In fact, we can replace all read, readv, recv, and recvfrom calls with recvmsg calls. Similarly, various output function calls can be replaced with sendmsg calls. # Include sockfd, msghdr *

[Recv/recvfrom/recvmsg System Call] function description: Receives a message from a socket. For recvfrom and recvmsg, it can be applied to connection-oriented and connectionless sockets at the same time. Generally, Recv is only used in

The sendmsg and recvmsg functions are a pair of lower-layer socket sending and receiving functions. Through this function, we can set or obtain some additional control information of the data packet, which is commonly used in the sending and

This article describes the system calls to read and write data on a network connection, in three parts: The first section describes the four system calls used to send data: Write,writev,sendto and sendmsg. The second part introduces four systems for

I. Question Write a one-to-one chat program between a socket-based TCP server and a client in Linux using standard C. Requirements: 1. Compile the server program and name it tcp_server.c. 2. Compile the client program and name it tcp_client.c. 3.

Finally solved yesterday... 1. Background: As the number of users increases, UDP packet loss increases. In fact, the packet volume is not large. UDP packets of no more than packets per second during peak periods should not be lost. The previous

LibPcap packet loss problem-Linux Enterprise Application-Linux server application information. The following is a detailed description. Author: Yu Zhu During this time, we checked the high packet loss rate of LibPcap. Many people mentioned this on

Inter-process descriptor transfer in Linux Each process has its own independent process space, which makes the descriptor transmission between processes a little complicated. This is the content of high-level inter-process communication.Descriptor

OrderAfter a very cool national Day holiday, with a small little boyfriend parents back to their hometown tasted Chaoshan food, Nanao Island fishing shrimp, seafood support to explode, back to Shenzhen the next day little other children parents took