Programming VIP

At the beginning of last year, there were a lot of code written in openwrt, although I felt sorry that there was a lot of code written in openwrt in the early days of the company. Let's briefly introduce the socket multi process server on openwrt. Look at the code This is c language code. The code written at that time was not very good. Don' ...

First of all, we should know that node is executed by single thread, but today's computer has developed to multi-core CPU. Therefore, it has become an important problem to solve the problem of node using multi-core CPU server. I Multi process architecture Analysis: in master JS folder, through child_process to copy sub processes, and os to ac ...

fork system call #include <sys/types.h> #include <unistd.h> /* Clone the calling process, creating an exact copy. Return -1 for errors, 0 to the new process, and the process ID of the new process to the old process. */ extern __pid_t fork (void) __THROWNL; Each call of this function returns twice. In the parent process, t ...

Python Simpy simulation of AGV running process 1, Achieve the purpose simpy provides a discrete-time simulation library. I want to use this simulation library to simulate the operation process of AGV in the workshop. A simple scenario can be described as: the simulation time starts, the AGV with an initial power of a certain value starts to r ...

[linux] process control 01. Process number correlation function getpid function pid_t getpid(void); Function: Get this process number( PID) Parameters: nothing Return value: This process number getppid function pid_t getppid(void); Function: Gets the parent process number of the process calling this function( PPID) Parame ...

PV operation questions PV operation knowledge structure the dining philosophers problem Problem Description: Have n (n) ≥ \ge ≥ 3) philosophers sit around a round table, and each philosopher eats and thinks alternately. There is m(m) in ...