716154c592
Updated AUTHORS, COPYING, DISCLAIMER, and INSTALL files. Added standardized headers to all source file to clearly indicate the copyright, license, and to give credit where credit is due.
117 lines
3.6 KiB
C
117 lines
3.6 KiB
C
/*****************************************************************************\
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* Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
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* Copyright (C) 2007 The Regents of the University of California.
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* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
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* Written by Brian Behlendorf <behlendorf1@llnl.gov>.
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* UCRL-CODE-235197
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*
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* This file is part of the SPL, Solaris Porting Layer.
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* For details, see <http://github.com/behlendorf/spl/>.
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*
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* The SPL is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* The SPL is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with the SPL. If not, see <http://www.gnu.org/licenses/>.
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*****************************************************************************
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* Solaris Porting LAyer Tests (SPLAT) Time Tests.
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\*****************************************************************************/
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#include "splat-internal.h"
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#define SPLAT_TIME_NAME "time"
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#define SPLAT_TIME_DESC "Kernel Time Tests"
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#define SPLAT_TIME_TEST1_ID 0x0801
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#define SPLAT_TIME_TEST1_NAME "time1"
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#define SPLAT_TIME_TEST1_DESC "HZ Test"
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#define SPLAT_TIME_TEST2_ID 0x0802
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#define SPLAT_TIME_TEST2_NAME "time2"
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#define SPLAT_TIME_TEST2_DESC "Monotonic Test"
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static int
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splat_time_test1(struct file *file, void *arg)
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{
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int myhz = hz;
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splat_vprint(file, SPLAT_TIME_TEST1_NAME, "hz is %d\n", myhz);
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return 0;
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}
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static int
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splat_time_test2(struct file *file, void *arg)
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{
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hrtime_t tm1, tm2;
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int i;
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tm1 = gethrtime();
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splat_vprint(file, SPLAT_TIME_TEST2_NAME, "time is %lld\n", tm1);
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for(i = 0; i < 100; i++) {
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tm2 = gethrtime();
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splat_vprint(file, SPLAT_TIME_TEST2_NAME, "time is %lld\n", tm2);
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if(tm1 > tm2) {
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splat_print(file, "%s: gethrtime() is not giving "
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"monotonically increasing values\n",
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SPLAT_TIME_TEST2_NAME);
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return 1;
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}
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tm1 = tm2;
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set_current_state(TASK_INTERRUPTIBLE);
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schedule_timeout(10);
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}
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return 0;
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}
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splat_subsystem_t *
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splat_time_init(void)
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{
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splat_subsystem_t *sub;
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sub = kmalloc(sizeof(*sub), GFP_KERNEL);
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if (sub == NULL)
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return NULL;
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memset(sub, 0, sizeof(*sub));
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strncpy(sub->desc.name, SPLAT_TIME_NAME, SPLAT_NAME_SIZE);
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strncpy(sub->desc.desc, SPLAT_TIME_DESC, SPLAT_DESC_SIZE);
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INIT_LIST_HEAD(&sub->subsystem_list);
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INIT_LIST_HEAD(&sub->test_list);
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spin_lock_init(&sub->test_lock);
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sub->desc.id = SPLAT_SUBSYSTEM_TIME;
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SPLAT_TEST_INIT(sub, SPLAT_TIME_TEST1_NAME, SPLAT_TIME_TEST1_DESC,
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SPLAT_TIME_TEST1_ID, splat_time_test1);
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SPLAT_TEST_INIT(sub, SPLAT_TIME_TEST2_NAME, SPLAT_TIME_TEST2_DESC,
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SPLAT_TIME_TEST2_ID, splat_time_test2);
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return sub;
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}
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void
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splat_time_fini(splat_subsystem_t *sub)
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{
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ASSERT(sub);
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SPLAT_TEST_FINI(sub, SPLAT_TIME_TEST2_ID);
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SPLAT_TEST_FINI(sub, SPLAT_TIME_TEST1_ID);
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kfree(sub);
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}
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int
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splat_time_id(void)
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{
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return SPLAT_SUBSYSTEM_TIME;
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}
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