1 /*- 2 * Copyright (c) 2015-2017 François Tigeot 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice unmodified, this list of conditions, and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef _LINUX_SCHED_H_ 28 #define _LINUX_SCHED_H_ 29 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/proc.h> 33 #include <sys/sched.h> 34 #include <sys/signal2.h> 35 36 #include <linux/time.h> 37 38 #define TASK_RUNNING 0 39 #define TASK_INTERRUPTIBLE 1 40 #define TASK_UNINTERRUPTIBLE 2 41 42 /* 43 * schedule_timeout - sleep until timeout 44 * @timeout: timeout value in jiffies 45 */ 46 static inline long 47 schedule_timeout(signed long timeout) 48 { 49 static int dummy; 50 51 if (timeout < 0) { 52 kprintf("schedule_timeout(): timeout cannot be negative\n"); 53 return 0; 54 } 55 56 tsleep(&dummy, 0, "lstim", timeout); 57 58 return 0; 59 } 60 61 #define TASK_COMM_LEN MAXCOMLEN 62 63 #define signal_pending(lp) CURSIG(lp) 64 65 /* 66 * local_clock: fast time source, monotonic on the same cpu 67 */ 68 static inline uint64_t 69 local_clock(void) 70 { 71 struct timespec ts; 72 73 getnanouptime(&ts); 74 return (ts.tv_sec * NSEC_PER_SEC) + ts.tv_nsec; 75 } 76 77 #endif /* _LINUX_SCHED_H_ */ 78