1 /* Copyright (C) 1996-2021 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, see 16 <https://www.gnu.org/licenses/>. */ 17 18 #include <errno.h> 19 #include <sched.h> 20 #include <sys/types.h> 21 #include <hurd.h> 22 23 24 /* Set scheduling algorithm and/or parameters for a process. */ 25 int __sched_setscheduler(pid_t pid,int policy,const struct sched_param * param)26__sched_setscheduler (pid_t pid, int policy, const struct sched_param *param) 27 { 28 switch (policy) 29 { 30 case SCHED_OTHER: 31 if (param->sched_priority != 0) 32 return __hurd_fail (EINVAL); 33 break; 34 35 case SCHED_FIFO: 36 case SCHED_RR: 37 return __hurd_fail (ENOTSUP); 38 39 default: 40 return EINVAL; 41 } 42 return 0; 43 } 44 libc_hidden_def (__sched_setscheduler) 45 weak_alias (__sched_setscheduler, sched_setscheduler) 46