Messages in this thread | | | Subject | Re: user context switching? | Date | Tue, 15 Jun 1999 19:41:17 -0400 | From | "Brandon S. Allbery KF8NH" <> |
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In message <Pine.GSO.3.96.990615191817.5425A-100000@ext1>, Jeff Garzik writes: +----- | Most of the other Unices implement the getcontext(2) and setcontext(2) | functions, as a portable (!!) means of performing a context switch from | a userland app (such as a green threads package). Solaris, Tru64 | (Digital) Unix, DG/UX, Irix, and HP/UX all support these two functions. | | How difficult would it be to implement these under Linux? +--->8
It can be implemented in userspace, using setjmp() and longjmp(); JNOS uses them.
-- brandon s. allbery [os/2][linux][solaris][japh] allbery@kf8nh.apk.net system administrator [WAY too many hats] allbery@ece.cmu.edu carnegie mellon / electrical and computer engineering KF8NH We are Linux. Resistance is an indication that you missed the point.
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