2 * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #include <sys/syscall.h>
31 #if defined __NR_sched_getattr && defined __NR_sched_setattr
33 # include <inttypes.h>
43 uint32_t sched_policy;
46 uint32_t sched_priority;
47 uint64_t sched_runtime;
48 uint64_t sched_deadline;
49 uint64_t sched_period;
54 if (syscall(__NR_sched_getattr, 0, &sched, sizeof(sched), 0))
55 perror_msg_and_skip("sched_getattr");
57 printf("sched_getattr\\(0, \\{size=%u, sched_policy=SCHED_[A-Z]+, sched_flags=%s, sched_nice=%u, sched_priority=%u, sched_runtime=%" PRIu64 ", sched_deadline=%" PRIu64 ", sched_period=%" PRIu64 "\\}, 256, 0\\) += 0\n",
59 sched.attr.sched_flags ? "SCHED_FLAG_RESET_ON_FORK" : "0",
60 sched.attr.sched_nice,
61 sched.attr.sched_priority,
62 sched.attr.sched_runtime,
63 sched.attr.sched_deadline,
64 sched.attr.sched_period);
66 sched.attr.sched_flags |= 1;
67 if (syscall(__NR_sched_setattr, 0, &sched, 0))
68 perror_msg_and_skip("sched_setattr");
70 printf("sched_setattr\\(0, \\{size=%u, sched_policy=SCHED_[A-Z]+, sched_flags=%s, sched_nice=%u, sched_priority=%u, sched_runtime=%" PRIu64 ", sched_deadline=%" PRIu64 ", sched_period=%" PRIu64 "\\}, 0\\) += 0\n",
72 "SCHED_FLAG_RESET_ON_FORK",
73 sched.attr.sched_nice,
74 sched.attr.sched_priority,
75 sched.attr.sched_runtime,
76 sched.attr.sched_deadline,
77 sched.attr.sched_period);
84 SKIP_MAIN_UNDEFINED("__NR_sched_getattr && __NR_sched_setattr")