30 lines
817 B
C
30 lines
817 B
C
|
#include "kernel/system.h"
|
||
|
|
#include <minix/endpoint.h>
|
||
|
|
#include "kernel/clock.h"
|
||
|
|
|
||
|
|
/*===========================================================================*
|
||
|
|
* do_schedule *
|
||
|
|
*===========================================================================*/
|
||
|
|
int do_schedule(struct proc * caller, message * m_ptr)
|
||
|
|
{
|
||
|
|
struct proc *p;
|
||
|
|
int proc_nr;
|
||
|
|
int priority, quantum, cpu;
|
||
|
|
|
||
|
|
if (!isokendpt(m_ptr->m_lsys_krn_schedule.endpoint, &proc_nr))
|
||
|
|
return EINVAL;
|
||
|
|
|
||
|
|
p = proc_addr(proc_nr);
|
||
|
|
|
||
|
|
/* Only this process' scheduler can schedule it */
|
||
|
|
if (caller != p->p_scheduler)
|
||
|
|
return(EPERM);
|
||
|
|
|
||
|
|
/* Try to schedule the process. */
|
||
|
|
priority = m_ptr->m_lsys_krn_schedule.priority;
|
||
|
|
quantum = m_ptr->m_lsys_krn_schedule.quantum;
|
||
|
|
cpu = m_ptr->m_lsys_krn_schedule.cpu;
|
||
|
|
|
||
|
|
return sched_proc(p, priority, quantum, cpu);
|
||
|
|
}
|