1 /* $NetBSD: t_nice.c,v 1.8 2012/03/18 07:00:51 jruoho Exp $ */
4 * Copyright (c) 2011 The NetBSD Foundation, Inc.
7 * This code is derived from software contributed to The NetBSD Foundation
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
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.
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.
31 #include <sys/cdefs.h>
32 __RCSID("$NetBSD: t_nice.c,v 1.8 2012/03/18 07:00:51 jruoho Exp $");
34 #include <sys/resource.h>
44 static void *threadfunc(void *);
54 pri = getpriority(PRIO_PROCESS, 0);
55 ATF_REQUIRE(errno == 0);
58 atf_tc_fail("nice(3) value was not propagated to threads");
64 ATF_TC_HEAD(nice_err, tc)
66 atf_tc_set_md_var(tc, "descr",
67 "Test nice(3) for invalid parameters (PR lib/42587)");
68 atf_tc_set_md_var(tc, "require.user", "unprivileged");
71 ATF_TC_BODY(nice_err, tc)
76 * The call should fail with EPERM if the
77 * supplied parameter is negative and the
78 * caller does not have privileges.
80 for (i = -20; i < 0; i++) {
84 ATF_REQUIRE_ERRNO(EPERM, nice(i) == -1);
88 ATF_TC(nice_priority);
89 ATF_TC_HEAD(nice_priority, tc)
91 atf_tc_set_md_var(tc, "descr", "Test nice(3) vs. getpriority(2)");
94 ATF_TC_BODY(nice_priority, tc)
97 int i, pri, pri2, nic;
104 for (i = 0; i <= 20; i++) {
107 ATF_REQUIRE(nic != -1);
110 pri = getpriority(PRIO_PROCESS, 0);
111 ATF_REQUIRE(errno == 0);
115 atf_tc_fail("nice(3) and getpriority(2) conflict");
119 * Also verify that the nice(3) values
120 * are inherited by child processes.
123 ATF_REQUIRE(pid >= 0);
129 pri = getpriority(PRIO_PROCESS, 0);
131 pri2 = getpriority(PRIO_PROCESS, 0);
133 ATF_REQUIRE(errno == 0);
147 if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != EXIT_SUCCESS)
148 atf_tc_fail("nice(3) value was not inherited");
153 ATF_TC_HEAD(nice_root, tc)
155 atf_tc_set_md_var(tc, "descr", "Test that nice(3) works");
156 atf_tc_set_md_var(tc, "require.user", "root");
159 ATF_TC_BODY(nice_root, tc)
163 for (i = -20; i <= 20; i++) {
165 ATF_REQUIRE(nice(i) != -1);
170 ATF_TC_HEAD(nice_thread, tc)
172 atf_tc_set_md_var(tc, "descr", "Test nice(3) with threads");
175 ATF_TC_BODY(nice_thread, tc)
186 * Test that the scheduling priority is
187 * propagated to all system scope threads.
189 for (i = 0; i < __arraycount(tid); i++) {
192 ATF_REQUIRE(val != -1);
195 pri = getpriority(PRIO_PROCESS, 0);
196 rv = pthread_create(&tid[i], NULL, threadfunc, &pri);
198 rv = pthread_create(&tid[i], NULL, threadfunc, &val);
200 ATF_REQUIRE(rv == 0);
202 rv = pthread_join(tid[i], NULL);
203 ATF_REQUIRE(rv == 0);
210 ATF_TP_ADD_TC(tp, nice_err);
211 ATF_TP_ADD_TC(tp, nice_priority);
212 ATF_TP_ADD_TC(tp, nice_root);
213 ATF_TP_ADD_TC(tp, nice_thread);
215 return atf_no_error();