52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
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/*
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* piHiPri:
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* Simple way to get your program running at high priority
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* with realtime schedulling.
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*
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* Copyright (c) 2012 Gordon Henderson
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***********************************************************************
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* This file is part of wiringPi:
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* https://projects.drogon.net/raspberry-pi/wiringpi/
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*
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* wiringPi is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* wiringPi is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with wiringPi.
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* If not, see <http://www.gnu.org/licenses/>.
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***********************************************************************
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*/
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#include <sched.h>
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#include <string.h>
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#include "wiringPi.h"
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/*
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* piHiPri:
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* Attempt to set a high priority schedulling for the running program
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*********************************************************************************
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*/
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int piHiPri (const int pri)
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{
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struct sched_param sched ;
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memset (&sched, 0, sizeof(sched)) ;
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if (pri > sched_get_priority_max (SCHED_RR))
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sched.sched_priority = sched_get_priority_max (SCHED_RR) ;
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else
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sched.sched_priority = pri ;
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return sched_setscheduler (0, SCHED_RR, &sched) ;
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}
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