1: /*************************************************************************
2: * (C) 2011 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
3: * by Michael Pounov <misho@openbsd-bg.org>
4: *
5: * $Author: misho $
6: * $Id: defs.h,v 1.7 2012/07/22 21:50:37 misho Exp $
7: *
8: **************************************************************************
9: The ELWIX and AITNET software is distributed under the following
10: terms:
11:
12: All of the documentation and software included in the ELWIX and AITNET
13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
14:
15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
16: by Michael Pounov <misho@elwix.org>. All rights reserved.
17:
18: Redistribution and use in source and binary forms, with or without
19: modification, are permitted provided that the following conditions
20: are met:
21: 1. Redistributions of source code must retain the above copyright
22: notice, this list of conditions and the following disclaimer.
23: 2. Redistributions in binary form must reproduce the above copyright
24: notice, this list of conditions and the following disclaimer in the
25: documentation and/or other materials provided with the distribution.
26: 3. All advertising materials mentioning features or use of this software
27: must display the following acknowledgement:
28: This product includes software developed by Michael Pounov <misho@elwix.org>
29: ELWIX - Embedded LightWeight unIX and its contributors.
30: 4. Neither the name of AITNET nor the names of its contributors
31: may be used to endorse or promote products derived from this software
32: without specific prior written permission.
33:
34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
37: ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
44: SUCH DAMAGE.
45: */
46: #ifndef __DEFS_H
47: #define __DEFS_H
48:
49:
50: #ifndef STRSIZ
51: #define STRSIZ 256
52: #endif
53:
54: #define KQ_EVENTS 32
55: #define MAX_EVENTLO_MISS 48
56:
57: #define LOGERR { \
58: sched_Errno = errno; \
59: strlcpy(sched_Error, strerror(errno), STRSIZ); \
60: }
61:
62: #define sched_timespecclear(tsp) ((tsp)->tv_sec = (tsp)->tv_nsec = 0)
63: #define sched_timespecinf(tsp) ((tsp)->tv_sec = (tsp)->tv_nsec = -1)
64: #define sched_timespecisinf(tsp) ((tsp)->tv_sec == -1 && (tsp)->tv_nsec == -1)
65: #define sched_timespecisset(tsp) (((tsp)->tv_sec && (tsp)->tv_sec != -1) || \
66: ((tsp)->tv_nsec && (tsp)->tv_nsec != -1))
67: #define sched_timespeccmp(tsp, usp, cmp) \
68: (((tsp)->tv_sec == (usp)->tv_sec) ? \
69: ((tsp)->tv_nsec cmp (usp)->tv_nsec) : \
70: ((tsp)->tv_sec cmp (usp)->tv_sec))
71: #define sched_timespecadd(tsp, usp, vsp) \
72: do { \
73: (vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec; \
74: (vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec; \
75: if ((vsp)->tv_nsec >= 1000000000L) { \
76: (vsp)->tv_sec++; \
77: (vsp)->tv_nsec -= 1000000000L; \
78: } \
79: } while (0)
80: #define sched_timespecsub(tsp, usp, vsp) \
81: do { \
82: (vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec; \
83: (vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec; \
84: if ((vsp)->tv_nsec < 0) { \
85: (vsp)->tv_sec--; \
86: (vsp)->tv_nsec += 1000000000L; \
87: } \
88: } while (0)
89:
90: extern int sched_Errno;
91: extern char sched_Error[];
92:
93: inline void sched_SetErr(int, char *, ...);
94:
95: inline sched_task_t *_sched_useTask(sched_root_task_t * __restrict root);
96: inline sched_task_t *_sched_unuseTask(sched_task_t * __restrict task);
97:
98:
99: #endif
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