1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
/*
* Copyright (c) 1994 David Greenman
* Copyright (c) 1994 Henrik Vestergaard Draboel (hvd@terry.ping.dk)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Henrik Vestergaard Draboel.
* This product includes software developed by David Greenman.
* 4. Neither the names of the authors nor the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static const char rcsid[] =
"$Id: rtprio.c,v 1.6 1998/05/19 20:52:31 dufault Exp $";
#endif /* not lint */
#include <sys/param.h>
#include <sys/rtprio.h>
#include <sys/errno.h>
#include <ctype.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
static void usage();
int
main(argc, argv)
int argc;
char **argv;
{
char *p;
int proc = 0;
struct rtprio rtp;
/* find basename */
if ((p = rindex(argv[0], '/')) == NULL)
p = argv[0];
else
++p;
if (!strcmp(p, "rtprio"))
rtp.type = RTP_PRIO_REALTIME;
else if (!strcmp(p, "idprio"))
rtp.type = RTP_PRIO_IDLE;
switch (argc) {
case 2:
proc = abs(atoi(argv[1])); /* Should check if numeric
* arg! */
/* FALLTHROUGH */
case 1:
if (rtprio(RTP_LOOKUP, proc, &rtp) != 0)
err(1, "%s", argv[0]);
printf("%s: ", p);
switch (rtp.type) {
case RTP_PRIO_REALTIME:
case RTP_PRIO_FIFO:
printf("realtime priority %d\n", rtp.prio);
break;
case RTP_PRIO_NORMAL:
printf("normal priority\n");
break;
case RTP_PRIO_IDLE:
printf("idle priority %d\n", rtp.prio);
break;
default:
printf("invalid priority type %d\n", rtp.type);
break;
}
exit(0);
default:
if (argv[1][0] == '-' || isdigit(argv[1][0])) {
if (argv[1][0] == '-') {
if (strcmp(argv[1], "-t") == 0) {
rtp.type = RTP_PRIO_NORMAL;
rtp.prio = 0;
} else {
usage();
break;
}
} else {
rtp.prio = atoi(argv[1]);
}
} else {
usage();
break;
}
if (argv[2][0] == '-')
proc = -atoi(argv[2]);
if (rtprio(RTP_SET, proc, &rtp) != 0)
err(1, "%s", argv[0]);
if (proc == 0) {
execvp(argv[2], &argv[2]);
err(1, "%s", argv[2]);
}
}
exit (1);
}
static void
usage()
{
(void) fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n",
"usage: [id|rt]prio",
" [id|rt]prio [-]pid",
" [id|rt]prio priority command [args]",
" [id|rt]prio priority -pid",
" [id|rt]prio -t command [args]",
" [id|rt]prio -t -pid");
exit(1);
}
|
