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Scheduling parameters out of the kernel.

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This commit is contained in:
Cristiano Giuffrida
2010-07-13 15:30:17 +00:00
parent d4e41fd1f6
commit 8cedace2f5
26 changed files with 196 additions and 156 deletions
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16
kernel/system/do_schedctl.c
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@@ -8,11 +8,9 @@ PUBLIC int do_schedctl(struct proc * caller, message * m_ptr)
{
struct proc *p;
unsigned flags;
unsigned priority, quantum;
int proc_nr;
/* Only system processes can change process schedulers */
if (! (priv(caller)->s_flags & SYS_PROC))
return(EPERM);
int r;
/* check parameter validity */
flags = (unsigned) m_ptr->SCHEDCTL_FLAGS;
@@ -29,11 +27,15 @@ PUBLIC int do_schedctl(struct proc * caller, message * m_ptr)
if ((flags & SCHEDCTL_FLAG_KERNEL) == SCHEDCTL_FLAG_KERNEL) {
/* the kernel becomes the scheduler and starts
* scheduling the process; RTS_NO_QUANTUM which was
* previously set by sys_fork is removed
* scheduling the process.
*/
priority = (unsigned) m_ptr->SCHEDCTL_PRIORITY;
quantum = (unsigned) m_ptr->SCHEDCTL_QUANTUM;
/* Try to schedule the process. */
if((r = sched_proc(p, priority, quantum) != OK))
return r;
p->p_scheduler = NULL;
RTS_UNSET(p, RTS_NO_QUANTUM);
} else {
/* the caller becomes the scheduler */
p->p_scheduler = caller;