socketpair

: This article mainly introduces the inter-process nginx communication-socketpair. if you are interested in the PHP Tutorial, refer to it. In nginx, the master process and worker process use a full-duplex communication method-socketpair. After the

The functions of socketpair are as follows:# Include # Include Int socketpair (int domain, int type, int protocol, int sv [2]);Sys/types. H file must be used to define some C macro constants. The sys/socket. H file must contain the etpair function

The functions of socketpair are as follows:# Include # Include Int socketpair (INT domain, int type, int protocol, int SV [2]);Sys/types. h file must be used to define some C macro constants. The sys/socket. h file must contain the etpair function

I. Concepts and usage One problem:How do I create a full-duplex pipe? The direct method is, of coursePipeCreate two groups of pipelines twice, but is it easier? SocketpairMan socketpair: Socketpair-create a pair of connected sockets, the two sockets

Pipelines and FIFO are initially in the form of unix ipc and are rarely used. SocketPair can be used as a full-duplex MPs queue. MPs queue* Only used for inter-process communication with kinship * Unidirectional, that is, half duplex (bidirectional

Let's take a look at the prototype of the Socketpair function as follows:int socketpair (int domain,int type,int protocol,int sv[])The first parameter represents the protocol family and must be af_local;The second parameter represents the type,

1.socketpair 2.sendmsg/recvmsg 3.UNIX domain socket pass-through description word Function: Create a loop duplex flow pipeline Prototype: int socketpair (int domain, int type, int protocol, int sv[2]); Parameter domain: protocol family Type:

pipes are used to create pipelines, but a single pipe can only communicate One direction at a time, while the other end is for reading and the other for writing. If you want to process two-way communication, you must create a pair of pipelines.

"Socketpair system call" Function Description:Establishes a pair of sockets that are connected and returns the socket descriptor as an array.Usage:#include #include int Socketpair (int d, int type, int protocol, int sv[2]); Parameters:D: The

Sockpair Implementing interprocess communicationWe used to learn the use of pipelines (here is anonymous pipeline) to achieve interprocess communication, can only be one-way, can only read while the other side can only write, and can only be in a