C++: When should i use _disable() _enable()

Question

Visual Studio allows instructs to clear the processors interrupt flag via _disable or _enable (see link). When, it is recommended to use such tools. Especally, in view of performance. https://msdn.microsoft.com/en-us/library/tzkfha43.aspx

I'm not a kernel mode driver developer. What is kernel mode? — user1235183, Oct 06 '15 at 08:32

score 2 · Accepted Answer · answered Oct 06 '15 at 08:37

2

_disable() and _enable() are used, respectively, to disable and enable interrupts.

Read more about interrupts here.

If you're a C++ beginner, you probably don't need this, except if your goal is to write an operating system kernel.

answered Oct 06 '15 at 08:37

slaphappy

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score 0 · Answer 2 · answered Oct 06 '15 at 08:37

0

In your case, never. Just forget it exists. :)

answered Oct 06 '15 at 08:37

wilx

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C++: When should i use _disable() _enable()

2 Answers2