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 | |