Computers and Technology, 15.07.2020 05:01 alienxangg91
To examine the fork() system call with code and through a process graph.
An Overview of Processes in Linux:
Linux is a "multitasking" operating system. This allows large, complex programs to be split into a number of smaller, simpler programs, called processes, which run concurrently or "in parallel".
However, the processes don’t actually run concurrently because there’s a single, or at most, a small number of processors. It is the role of the operating system to switch these processes in and out of the processor in such a way that they appear to be running concurrently.
Processes are created by the fork() system call. The process calling fork() is called the "parent" and the newly created process is called the "child". The child is an almost identical copy in terms of the parent: code, data, stack, open file descriptors, etc.
A fork() call returns the PID of the child to the parent and returns 0 to the child. Note that although fork() is called once, it returns twice, once to the parent and once to the child.
int x = 2; int main() if (fork() == 0) printf ("Child process: x = d\n", x++): else printf ("Parent process: x = 3d\n", X--); \n", ++ x) if (fork() == 0) /* Second fork () */ printf ("Secondary Child process: x d else printf ("Secondary Parent process: x = d\n", --x); return 0;
Answers: 2
Computers and Technology, 23.06.2019 06:00
Which statement is true of web-based social media? a.they allow consumers to interact with and update content. b.they cannot be updated easily, as compared to print media. c.they are expensive to produce and maintain, as compared to print and television. d.they can exist independent of the internet.
Answers: 1
Computers and Technology, 23.06.2019 07:30
What part of the interface displays the external references contained in a selected cell? the status bar the review tab the scroll bar the formula bar
Answers: 1
Computers and Technology, 23.06.2019 13:30
What is the primary difference between the header section of a document and the body? a. the body is displayed on the webpage and the header is not. b. the header is displayed on the webpage and the body is not. c. the tag for the body is self-closing, but the tags for the headers must be closed. d. the tag for the header is self closing, but the tag for the body must be closed.
Answers: 3
Computers and Technology, 23.06.2019 23:30
A. in packet tracer, only the server-pt device can act as a server. desktop or laptop pcs cannot act as a server. based on your studies so far, explain the client-server model.
Answers: 2
To examine the fork() system call with code and through a process graph.
An Overview of Processes i...
Social Studies, 04.11.2020 14:00
Mathematics, 04.11.2020 14:00
Geography, 04.11.2020 14:00
Mathematics, 04.11.2020 14:00
English, 04.11.2020 14:00
English, 04.11.2020 14:00
Physics, 04.11.2020 14:00
English, 04.11.2020 14:00
Mathematics, 04.11.2020 14:00