man msgsnd

Today, I wrote a small example of a System V message queue and defined a structure like this:#define MSG_SIZE 8192struct request{ long mtype; int client_id; char pathname[MSG_SIZE];};I then called msgsnd to send the struct to the server,

"Copyright Notice: respect for the original, reproduced please retain the source: blog.csdn.net/shallnet or .../gentleliu, the article is for learning communication only, do not use for commercial purposes"System V Message Queuing is similar to

The new Year, the heart of all tastes ...　　One, Message Queuing1, Concept: "Message Queuing" is a container for saving messages during the transmission of a message2, Message Queuing is a linked list of messages. You can think of a message as a

message Send/Receive APImsgsnd functionint msgsnd (int msqid, const void *MSGP, size_t msgsz, int msgflg);ParametersMsgId: The message queue identifier returned by the Msgget function, or it can be an ID number of an existing message queue that is

Message Queuing, semaphores, and shared memory are called XSI IPC, and they all come from the IPC capabilities of System V, and therefore have many commonalities.Keys and identifiers:　　Each IPC structure in the kernel (such as semaphores, message

Message Queue can make up for the lack of pipelines and achieve two-way data interaction. it is a method by which a process sends process blocks to another process. Unlike pipelines, pipelines are based on byte streams, message queues are based on

Inter-process communication refers to the Process Communication and information exchange between multiple processes. Linux IPC is basically inherited from the UNIX platform. It mainly includes the original Unix IPC, System v ipc, and socket-based

I. Definition of message queueMessage Queuing can compensate for the lack of pipelines and implement bidirectional interaction data, which is a way for a process to send a process block to another process. Unlike pipelines, pipelines are based on

Original article link Inter-process communication refers to the Process Communication and information exchange between multiple processes. Linux IPC is basically inherited from the UNIX platform. It mainly includes the original Unix IPC, System v

There are multiple communication methods between processes, including pipelines, FIFO, message queues, shared memory, and semaphores. 1. Half Duplex Pipe This method can only be used between processes with common ancestor. Generally, a pipeline