s_runQueue

[zhe]

The s_runQueue in kthread.c is a static struct, but in the scheduling
syscall I need to use the s_runQueue, are we allowed to make the s_runQueue
globle?

thx
Zhe

[Iulian Neamtiu]

Feel free to do that. In general, feel free to modify the kernel in any
way you want (unless we mention explicitly that you're not allowed to
change a specific part, which we don't do very often).

Iulian

Post by zhe
The s_runQueue in kthread.c is a static struct, but in the scheduling
syscall I need to use the s_runQueue, are we allowed to make the s_runQueue
globle?
thx
Zhe

[Drew Chen]

trying to do just that, making s_runQueue global, i get an error when compiling in
my Sys_SetSchedulingPolicy() that says
" undefined reference to `s_runQueue' "

i made it an extern global in kthread.h but is there some thing that causes
problems with externs and static vars, or externs and arrays?

-drew

[Drew Chen]

ok. nvm. i answered my own question by googling extern static,

i came up with this

http://www.eskimo.com/~scs/cclass/krnotes/sx7f.html

i hope this page helps you all.
it clarified alot about the inner workings of C for me.