1433d6423SLionel Sambuc #include "kernel/system.h"
2433d6423SLionel Sambuc #include <minix/endpoint.h>
3433d6423SLionel Sambuc #include "kernel/clock.h"
4433d6423SLionel Sambuc
5433d6423SLionel Sambuc /*===========================================================================*
6433d6423SLionel Sambuc * do_schedule *
7433d6423SLionel Sambuc *===========================================================================*/
do_schedule(struct proc * caller,message * m_ptr)8433d6423SLionel Sambuc int do_schedule(struct proc * caller, message * m_ptr)
9433d6423SLionel Sambuc {
10433d6423SLionel Sambuc struct proc *p;
11433d6423SLionel Sambuc int proc_nr;
12*366d18b2SDavid van Moolenbroek int priority, quantum, cpu, niced;
13433d6423SLionel Sambuc
14433d6423SLionel Sambuc if (!isokendpt(m_ptr->m_lsys_krn_schedule.endpoint, &proc_nr))
15433d6423SLionel Sambuc return EINVAL;
16433d6423SLionel Sambuc
17433d6423SLionel Sambuc p = proc_addr(proc_nr);
18433d6423SLionel Sambuc
19433d6423SLionel Sambuc /* Only this process' scheduler can schedule it */
20433d6423SLionel Sambuc if (caller != p->p_scheduler)
21433d6423SLionel Sambuc return(EPERM);
22433d6423SLionel Sambuc
23433d6423SLionel Sambuc /* Try to schedule the process. */
24433d6423SLionel Sambuc priority = m_ptr->m_lsys_krn_schedule.priority;
25433d6423SLionel Sambuc quantum = m_ptr->m_lsys_krn_schedule.quantum;
26433d6423SLionel Sambuc cpu = m_ptr->m_lsys_krn_schedule.cpu;
27*366d18b2SDavid van Moolenbroek niced = !!(m_ptr->m_lsys_krn_schedule.niced);
28433d6423SLionel Sambuc
29*366d18b2SDavid van Moolenbroek return sched_proc(p, priority, quantum, cpu, niced);
30433d6423SLionel Sambuc }
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