Linux® Socket Programming

Chapter 8. Choosing when to Wait for I/O

IN THIS CHAPTER

• I/O Blocking: Why?

• When Do I Block?

• Alternatives to I/O Blocking

• Comparing the Different I/O Programming Interactions

• Polling I/O

• Asynchronous I/O

• Solving Unwanted I/O Blocking with poll() and select()

• Implementing Timeouts

• Summary: Choosing the I/O Techniques

With today's time demands, it's a good idea to investigate time-saving methods for your network. So it's good to keep in mind that your computer has a fundamentally critical, limited resource: the CPU. Every task on the system demands time from it, and every task has to share that time in small portions. At the most basic level, every task shares CPU time with time slicing. Linux uses a more dynamic scheduling algorithm that adapts to CPU use ...