| 1 | /* $NetBSD: sched.h,v 1.5 2014/11/08 19:27:40 nonaka Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2013 The NetBSD Foundation, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to The NetBSD Foundation |
| 8 | * by Taylor R. Campbell. |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer. |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in the |
| 17 | * documentation and/or other materials provided with the distribution. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 29 | * POSSIBILITY OF SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | #ifndef _LINUX_SCHED_H_ |
| 33 | #define _LINUX_SCHED_H_ |
| 34 | |
| 35 | #include <sys/param.h> |
| 36 | #include <sys/kernel.h> |
| 37 | #include <sys/proc.h> |
| 38 | |
| 39 | #define TASK_COMM_LEN MAXCOMLEN |
| 40 | |
| 41 | #define current curproc |
| 42 | |
| 43 | static inline pid_t |
| 44 | task_pid_nr(struct proc *p) |
| 45 | { |
| 46 | return p->p_pid; |
| 47 | } |
| 48 | |
| 49 | static inline long |
| 50 | schedule_timeout_uninterruptible(long timeout) |
| 51 | { |
| 52 | long remain; |
| 53 | int start, end; |
| 54 | |
| 55 | if (cold) { |
| 56 | DELAY(timeout); |
| 57 | return 0; |
| 58 | } |
| 59 | |
| 60 | start = hardclock_ticks; |
| 61 | /* XXX Integer truncation...not likely to matter here. */ |
| 62 | (void)kpause("loonix" , false /*!intr*/, timeout, NULL); |
| 63 | end = hardclock_ticks; |
| 64 | |
| 65 | remain = timeout - (end - start); |
| 66 | return remain > 0 ? remain : 0; |
| 67 | } |
| 68 | |
| 69 | #endif /* _LINUX_SCHED_H_ */ |
| 70 | |