Comments (2)
Ah guess I lost track of this one. Not entirely sure what those do. Are they like setjmp/longjmp?
from lk.
http://man7.org/linux/man-pages/man3/makecontext.3.html
https://linux.die.net/man/2/setcontext
Basically it's setjmp/longjmp with an API optimized for threading because you can easily return to the old context, change the stack pointer and the entrypoint, etc.
On Unix systems it actually does more than setjmp/longjmp because it saves more data like the signal mask so you can set that from within a signal handler to allow external/timed scheduling.
from lk.
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from lk.