[API] How many time to be context-switched?

[Ricardo Biehl]

	As a question I've made on Stackexchange
	<http://stackoverflow.com/questions/40579919/how-many-time-to-be-context-switched>:

I'm developing a real-time program where scheduler's context-switches
might interfere its performance.
---
Suppose I need to do many consecutive (but optional) operations (I
mean I'm able to cancel some of them) of the same type in every
execution of a timer-oriented signal handler.
Could I check how much time left until my thread get context-switched?
[...] and then I can cancel/jump some operations for a better
performance at all.

If yes, how can I do it (in C code)?

Huge thanks!

-- 
Ricardo Biehl Pasquali