To learn about Linux programming tomorrow-general Linux technology-Linux programming and kernel information, read the following for details. The biggest feature of Linux source code is the use of semaphores and pointers. At present, I understand the introduction of a long integer binary number. Each digit represents a semaphore. When you need to determine a certain state of the current system, the semaphore and a specific signal value are used. Very convenient.
Then, the pointer is used. The Linux kernel is written in C. The biggest feature of C is that it is convenient to use the pointer for addressing. It may have been rarely used in the past. When learning, the teacher will briefly talk about the basic usage. In Linux, pointers are used a lot, and some points are used very cleverly. At the beginning, it was a headache. There were a lot of asterisks. Directly skip to the following, and the results will become increasingly confusing. No way, just rely on the child to analyze slowly. After reading this, hey, the eyes are bright. It's a great use.
There are also a lot of programming skills that are worth learning.
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