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/* Copyright (C) 1996, 1997, 2009 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <schedP.h>
#include <sched.h>
#include <sys/priocntl.h>
#include <sys/types.h>
/* Get the SCHED_RR interval for the named process. */
int
__sched_rr_get_interval (pid_t pid, struct timespec *t)
{
if (pid == 0)
pid = P_MYID;
pcparms_t parms = {0};
parms.pc_cid = PC_CLNULL;
if (priocntl (P_PID, pid, PC_GETPARMS, &parms) == -1)
return -1;
int policy = __sched_class_to_policy (parms.pc_cid);
if (policy == -1)
return -1;
t->tv_sec = 0;
t->tv_nsec = 0;
rtparms_t *rtparms = (rtparms_t *)parms.pc_clparms;
fxparms_t *fxparms = (fxparms_t *)parms.pc_clparms;
switch (policy)
{
case SCHED_FIFO:
case SCHED_RR:
if (rtparms->rt_tqnsecs != RT_TQINF)
{
t->tv_sec = rtparms->rt_tqsecs;
t->tv_nsec = rtparms->rt_tqnsecs;
}
break;
case SCHED_FX:
if (fxparms->fx_tqnsecs != FX_TQINF)
{
t->tv_sec = fxparms->fx_tqsecs;
t->tv_nsec = fxparms->fx_tqnsecs;
break;
}
}
return 0;
}
weak_alias (__sched_rr_get_interval, sched_rr_get_interval)
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