1 /* 2 * Copyright 2009, Michael Franz 3 * Copyright 2008, Andreas Färber, andreas.faerber@web.de 4 * Distributed under the terms of the MIT license. 5 */ 6 7 8 #include <errno.h> 9 #include <sched.h> 10 11 #include <OS.h> 12 13 #include <syscalls.h> 14 15 16 int 17 sched_yield(void) 18 { 19 _kern_thread_yield(); 20 return 0; 21 } 22 23 24 int 25 sched_get_priority_min(int policy) 26 { 27 switch (policy) { 28 case SCHED_FIFO: 29 case SCHED_RR: 30 case SCHED_OTHER: 31 return B_LOW_PRIORITY; 32 33 default: 34 errno = EINVAL; 35 return -1; 36 } 37 } 38 39 40 int 41 sched_get_priority_max(int policy) 42 { 43 switch (policy) { 44 case SCHED_FIFO: 45 case SCHED_RR: 46 case SCHED_OTHER: 47 return B_URGENT_DISPLAY_PRIORITY; 48 49 default: 50 errno = EINVAL; 51 return -1; 52 } 53 } 54