lib/libsys/sched_stop.c

   1 #include "syslib.h"
   2 #include <assert.h>
   3 #include <string.h>
   4
   5 /*===========================================================================*
   6  *                              sched_stop                                   *
   7  *===========================================================================*/
   8 int sched_stop(endpoint_t scheduler_e, endpoint_t schedulee_e)
   9 {
  10         int rv;
  11         message m;
  12
  13         /* If the kernel is the scheduler, it will implicitly stop scheduling
  14          * once another process takes over or the process terminates */
  15         if (scheduler_e == KERNEL || scheduler_e == NONE)
  16                 return(OK);
  17
  18         /* User-scheduled, perform the call */
  19         assert(_ENDPOINT_P(scheduler_e) >= 0);
  20         assert(_ENDPOINT_P(schedulee_e) >= 0);
  21
  22         memset(&m, 0, sizeof(m));
  23         m.SCHEDULING_ENDPOINT   = schedulee_e;
  24         if ((rv = _taskcall(scheduler_e, SCHEDULING_STOP, &m))) {
  25                 return rv;
  26         }
  27
  28         return (OK);
  29 }