Opps, forgot to svn add these files

This commit is contained in:
Erik van der Kouwe 2010-07-01 08:38:15 +00:00
parent 23284ee7bd
commit 4690e8b015
3 changed files with 122 additions and 0 deletions

14
include/minix/sched.h Normal file
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#ifndef _MINIX_SCHED_H
#define _MINIX_SCHED_H
#include <minix/ipc.h>
_PROTOTYPE(int sched_stop, (endpoint_t scheduler_e, endpoint_t schedulee_e));
_PROTOTYPE(int sched_start, (endpoint_t scheduler_e, endpoint_t schedulee_e,
endpoint_t parent_e, unsigned maxprio, unsigned quantum,
endpoint_t *newscheduler_e));
_PROTOTYPE(int sched_inherit, (endpoint_t scheduler_e,
endpoint_t schedulee_e, endpoint_t parent_e, unsigned maxprio,
endpoint_t *newscheduler_e));
#endif /* _MINIX_SCHED_H */

81
lib/libsys/sched_start.c Normal file
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#include "syslib.h"
#include <assert.h>
#include <machine/archtypes.h>
#include <timers.h>
#include "kernel/config.h"
#include "kernel/const.h"
#include "kernel/type.h"
#include "kernel/proc.h"
/*===========================================================================*
* sched_inherit *
*===========================================================================*/
PUBLIC int sched_inherit(endpoint_t scheduler_e,
endpoint_t schedulee_e, endpoint_t parent_e, unsigned maxprio,
endpoint_t *newscheduler_e)
{
int rv;
message m;
assert(_ENDPOINT_P(scheduler_e) >= 0);
assert(_ENDPOINT_P(schedulee_e) >= 0);
assert(_ENDPOINT_P(parent_e) >= 0);
assert(maxprio >= 0);
assert(maxprio < NR_SCHED_QUEUES);
assert(newscheduler_e);
m.SCHEDULING_ENDPOINT = schedulee_e;
m.SCHEDULING_PARENT = parent_e;
m.SCHEDULING_MAXPRIO = (int) maxprio;
/* Send the request to the scheduler */
if ((rv = _taskcall(scheduler_e, SCHEDULING_INHERIT, &m))) {
return rv;
}
/* Store the process' scheduler. Note that this might not be the
* scheduler we sent the SCHEDULING_INHERIT message to. That scheduler
* might have forwarded the scheduling message on to another scheduler
* before returning the message.
*/
*newscheduler_e = m.SCHEDULING_SCHEDULER;
return (OK);
}
/*===========================================================================*
* sched_start *
*===========================================================================*/
PUBLIC int sched_start(endpoint_t scheduler_e, endpoint_t schedulee_e,
endpoint_t parent_e, unsigned maxprio, unsigned quantum,
endpoint_t *newscheduler_e)
{
int rv;
message m;
assert(_ENDPOINT_P(scheduler_e) >= 0);
assert(_ENDPOINT_P(schedulee_e) >= 0);
assert(_ENDPOINT_P(parent_e) >= 0);
assert(maxprio >= 0);
assert(maxprio < NR_SCHED_QUEUES);
assert(quantum > 0);
assert(newscheduler_e);
m.SCHEDULING_ENDPOINT = schedulee_e;
m.SCHEDULING_PARENT = parent_e;
m.SCHEDULING_MAXPRIO = (int) maxprio;
m.SCHEDULING_QUANTUM = (int) quantum;
/* Send the request to the scheduler */
if ((rv = _taskcall(scheduler_e, SCHEDULING_START, &m))) {
return rv;
}
/* Store the process' scheduler. Note that this might not be the
* scheduler we sent the SCHEDULING_START message to. That scheduler
* might have forwarded the scheduling message on to another scheduler
* before returning the message.
*/
*newscheduler_e = m.SCHEDULING_SCHEDULER;
return (OK);
}

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lib/libsys/sched_stop.c Normal file
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#include "syslib.h"
#include <assert.h>
/*===========================================================================*
* sched_stop *
*===========================================================================*/
PUBLIC int sched_stop(endpoint_t scheduler_e, endpoint_t schedulee_e)
{
int rv;
message m;
/* If the kernel is the scheduler, it will implicitly stop scheduling
* once another process takes over or the process terminates */
if (scheduler_e == KERNEL || scheduler_e == NONE)
return(OK);
/* User-scheduled, perform the call */
assert(_ENDPOINT_P(scheduler_e) >= 0);
assert(_ENDPOINT_P(schedulee_e) >= 0);
m.SCHEDULING_ENDPOINT = schedulee_e;
if ((rv = _taskcall(scheduler_e, SCHEDULING_STOP, &m))) {
return rv;
}
return (OK);
}