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authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /nptl/tst-tpp.h
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
downloadglibc-0ecb606cb6cf65de1d9fc8a919bceb4be476c602.tar.gz
2.5-18.1
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+/* Copyright (C) 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2006.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <pthread.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+
+/* This test is Linux specific. */
+#define CHECK_TPP_PRIORITY(normal, boosted) \
+ do \
+ { \
+ pid_t tid = syscall (__NR_gettid); \
+ \
+ struct sched_param cep_sp; \
+ int cep_policy; \
+ if (pthread_getschedparam (pthread_self (), &cep_policy, \
+ &cep_sp) != 0) \
+ { \
+ puts ("getschedparam failed"); \
+ ret = 1; \
+ } \
+ else if (cep_sp.sched_priority != (normal)) \
+ { \
+ printf ("unexpected priority %d != %d\n", \
+ cep_sp.sched_priority, (normal)); \
+ } \
+ if (syscall (__NR_sched_getparam, tid, &cep_sp) == 0 \
+ && cep_sp.sched_priority != (boosted)) \
+ { \
+ printf ("unexpected boosted priority %d != %d\n", \
+ cep_sp.sched_priority, (boosted)); \
+ ret = 1; \
+ } \
+ } \
+ while (0)
+
+int fifo_min, fifo_max;
+
+void
+init_tpp_test (void)
+{
+ fifo_min = sched_get_priority_min (SCHED_FIFO);
+ if (fifo_min < 0)
+ {
+ printf ("couldn't get min priority for SCHED_FIFO: %m\n");
+ exit (1);
+ }
+
+ fifo_max = sched_get_priority_max (SCHED_FIFO);
+ if (fifo_max < 0)
+ {
+ printf ("couldn't get max priority for SCHED_FIFO: %m\n");
+ exit (1);
+ }
+
+ if (fifo_min > 4 || fifo_max < 10)
+ {
+ printf ("%d..%d SCHED_FIFO priority interval not suitable for this test\n",
+ fifo_min, fifo_max);
+ exit (0);
+ }
+
+ struct sched_param sp;
+ memset (&sp, 0, sizeof (sp));
+ sp.sched_priority = 4;
+ int e = pthread_setschedparam (pthread_self (), SCHED_FIFO, &sp);
+ if (e != 0)
+ {
+ errno = e;
+ printf ("cannot set scheduling params: %m\n");
+ exit (0);
+ }
+}