fork return values

  Fork introduction:Fork stands for the meaning of "branching and branching". In the operating system, fork is a famous Unix (or Unix-like, such as Linux or minix) to create a sub-process. [Note1]What is the role of Fork? In other words, what is the

Fork introduction:Fork stands for the meaning of "branching and branching". In the operating system, fork is a famous Unix (or Unix-like, such as Linux or minix) to create a sub-process. [Note1]What is the role of Fork? In other words, what is the

http://blog.csdn.net/jason314/article/details/5640969The fork () call will copy a new process that is almost identical to the current process (except for the fork's return value), each of which has its own space, each with its own local variables,

I. Introduction to fork   A process, including code, data, and resources allocated to the process. The fork () function creates a process that is almost identical to the original process through system calls, that is, the two processes can do

Transferred from: http://blog.csdn.net/jason314/article/details/5640969First, Fork Introduction knowledgeA process, including code, data, and resources assigned to the process. The fork () function creates a process that is almost identical to the

Turn from: http://blog.csdn.net/livingpark/article/details/4069049 "NOTE4" First, it must be clear that the return value of the function is stored in the register EAX. Second, when Fork returns, the new process returns 0 because the EAX is set to 0

Fork is one of the most difficult concepts to understand: it executes once but returns two values.First, let's look at the prototype of the fork function:# include # include pid_t fork (void);return value:Negative number: If there is an error, fork (

"NOTE4" First, it must be clear that the return value of the function is stored in the register EAX. Second, when Fork returns, the new process returns 0 because the EAX is set to 0 when the task structure is initialized; In fork, the handle process

Understanding of fork () functions, and understanding of fork FunctionsAuthor:Wang Shanshan, a lecturer at Huaqing vision embedded College. For those who are new to Unix/Linux operating systems and Write multi-process programs in Linux, fork is one

First, fork introductory knowledge A process that includes code, data, and resources assigned to the process. The fork () function creates a process that is almost exactly the same as the original process through system calls, where two processes