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annotate lib/spawnattr_setschedpolicy.c @ 40186:8964917f9574

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author Karl Berry <karl@freefriends.org>
date Mon, 18 Feb 2019 08:02:49 -0800
parents b06060465f09
children
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b06060465f09 maint: Run 'make update-copyright'
Paul Eggert <eggert@cs.ucla.edu>
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1 /* Copyright (C) 2000, 2009-2019 Free Software Foundation, Inc.
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2 This file is part of the GNU C Library.
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3
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4 This program is free software: you can redistribute it and/or modify
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5 it under the terms of the GNU General Public License as published by
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6 the Free Software Foundation; either version 3 of the License, or
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7 (at your option) any later version.
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8
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9 This program is distributed in the hope that it will be useful,
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 GNU General Public License for more details.
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13
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14 You should have received a copy of the GNU General Public License
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15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
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16
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17 #include <config.h>
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18
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19 /* Specification. */
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20 #include <spawn.h>
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21
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22 #include <errno.h>
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23
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24 /* Store scheduling policy in the attribute structure. */
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25 int
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26 posix_spawnattr_setschedpolicy (posix_spawnattr_t *attr, int schedpolicy)
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27 {
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28 /* Do nothing if POSIX_SPAWN_SETSCHEDULER is unsupported. */
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29 #if POSIX_SPAWN_SETSCHEDULER != 0
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30 if (schedpolicy != SCHED_OTHER && schedpolicy != SCHED_FIFO
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31 && schedpolicy != SCHED_RR)
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32 return EINVAL;
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33
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34 /* Store the policy. */
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35 attr->_policy = schedpolicy;
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36 #endif
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37
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38 return 0;
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39 }