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51 lines
1.6 KiB
51 lines
1.6 KiB
/* |
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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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