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
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
/* $NetBSD: t_nice.c,v 1.8 2012/03/18 07:00:51 jruoho Exp $ */
/*-
* Copyright (c) 2011 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jukka Ruohonen.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: t_nice.c,v 1.8 2012/03/18 07:00:51 jruoho Exp $");
#include <sys/resource.h>
#include <sys/wait.h>
#include <atf-c.h>
#include <errno.h>
#include <limits.h>
#include <pthread.h>
#include <stdlib.h>
#include <unistd.h>
static void *threadfunc(void *);
static void *
threadfunc(void *arg)
{
int pri, val;
val = *(int *)arg;
errno = 0;
pri = getpriority(PRIO_PROCESS, 0);
ATF_REQUIRE(errno == 0);
if (pri != val)
atf_tc_fail("nice(3) value was not propagated to threads");
return NULL;
}
ATF_TC(nice_err);
ATF_TC_HEAD(nice_err, tc)
{
atf_tc_set_md_var(tc, "descr",
"Test nice(3) for invalid parameters (PR lib/42587)");
atf_tc_set_md_var(tc, "require.user", "unprivileged");
}
ATF_TC_BODY(nice_err, tc)
{
int i;
/*
* The call should fail with EPERM if the
* supplied parameter is negative and the
* caller does not have privileges.
*/
for (i = -20; i < 0; i++) {
errno = 0;
ATF_REQUIRE_ERRNO(EPERM, nice(i) == -1);
}
}
ATF_TC(nice_priority);
ATF_TC_HEAD(nice_priority, tc)
{
atf_tc_set_md_var(tc, "descr", "Test nice(3) vs. getpriority(2)");
}
ATF_TC_BODY(nice_priority, tc)
{
#ifdef __FreeBSD__
int i, pri, pri2, nic;
#else
int i, pri, nic;
#endif
pid_t pid;
int sta;
for (i = 0; i <= 20; i++) {
nic = nice(i);
ATF_REQUIRE(nic != -1);
errno = 0;
pri = getpriority(PRIO_PROCESS, 0);
ATF_REQUIRE(errno == 0);
#ifdef __NetBSD__
if (nic != pri)
atf_tc_fail("nice(3) and getpriority(2) conflict");
#endif
/*
* Also verify that the nice(3) values
* are inherited by child processes.
*/
pid = fork();
ATF_REQUIRE(pid >= 0);
if (pid == 0) {
errno = 0;
#ifdef __NetBSD__
pri = getpriority(PRIO_PROCESS, 0);
#else
pri2 = getpriority(PRIO_PROCESS, 0);
#endif
ATF_REQUIRE(errno == 0);
#ifdef __FreeBSD__
if (pri != pri2)
#else
if (nic != pri)
#endif
_exit(EXIT_FAILURE);
_exit(EXIT_SUCCESS);
}
(void)wait(&sta);
if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != EXIT_SUCCESS)
atf_tc_fail("nice(3) value was not inherited");
}
}
ATF_TC(nice_root);
ATF_TC_HEAD(nice_root, tc)
{
atf_tc_set_md_var(tc, "descr", "Test that nice(3) works");
atf_tc_set_md_var(tc, "require.user", "root");
}
ATF_TC_BODY(nice_root, tc)
{
int i;
for (i = -20; i <= 20; i++) {
ATF_REQUIRE(nice(i) != -1);
}
}
ATF_TC(nice_thread);
ATF_TC_HEAD(nice_thread, tc)
{
atf_tc_set_md_var(tc, "descr", "Test nice(3) with threads");
}
ATF_TC_BODY(nice_thread, tc)
{
pthread_t tid[5];
#ifdef __FreeBSD__
int pri, rv, val;
#else
int rv, val;
#endif
size_t i;
/*
* Test that the scheduling priority is
* propagated to all system scope threads.
*/
for (i = 0; i < __arraycount(tid); i++) {
val = nice(i);
ATF_REQUIRE(val != -1);
#ifdef __FreeBSD__
pri = getpriority(PRIO_PROCESS, 0);
rv = pthread_create(&tid[i], NULL, threadfunc, &pri);
#else
rv = pthread_create(&tid[i], NULL, threadfunc, &val);
#endif
ATF_REQUIRE(rv == 0);
rv = pthread_join(tid[i], NULL);
ATF_REQUIRE(rv == 0);
}
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, nice_err);
ATF_TP_ADD_TC(tp, nice_priority);
ATF_TP_ADD_TC(tp, nice_root);
ATF_TP_ADD_TC(tp, nice_thread);
return atf_no_error();
}
|
