svn commit: r315299 - user/pho/stress2/misc

[Peter Holm]

Author: pho
Date: Wed Mar 15 10:36:12 2017
New Revision: 315299
URL: https://svnweb.freebsd.org/changeset/base/315299

Log:
  Added a regression test.
  
  Sponsored by:	Dell EMC Isilon

Added:
  user/pho/stress2/misc/sem_timedwait.sh   (contents, props changed)

Added: user/pho/stress2/misc/sem_timedwait.sh
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ user/pho/stress2/misc/sem_timedwait.sh	Wed Mar 15 10:36:12 2017	(r315299)
@@ -0,0 +1,101 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2017 Dell EMC Isilon
+# All rights reserved.
+#
+# 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 AUTHOR 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 AUTHOR 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.
+#
+# $FreeBSD$
+#
+
+# sem_timedwait(2) test.
+
+# Test scenario by Eric van Gyzen <vangyzen at FreeBSD.org>
+# for changes committed as r315280.
+
+. ../default.cfg
+
+dir=/tmp
+odir=`pwd`
+cd $dir
+sed '1,/^EOF/d' < $odir/$0 > $dir/sem_timedwait.c
+mycc -o sem_timedwait -Wall -Wextra -O0 -g sem_timedwait.c || exit 1
+rm -f sem_timedwait.c
+cd $odir
+
+for i in `jot 900`; do
+	date -f %s $((`date +%s` + `jot -r 1 -5 5`)) > /dev/null
+	sleep .`jot -r 1 1 9`
+	[ $i -eq 900 ] && echo XXX
+done &
+pid=$!
+
+s=0
+start=`date +%s`
+while [ $((`date +%s` - start)) -lt 120 ]; do
+	st=`date +%T`
+	/tmp/sem_timedwait > /dev/null || { s=$?; break; }
+done
+kill $pid > /dev/null 2>&1
+wait
+
+rm -rf /tmp/sem_timedwait
+exit $s
+
+EOF
+#include <err.h>
+#include <errno.h>
+#include <semaphore.h>
+#include <stdio.h>
+#include <time.h>
+#include <unistd.h>
+
+int
+main(void)
+{
+    sem_t sem;
+    int result;
+    struct timespec ts;
+
+    alarm(120);
+    result = sem_init(&sem, 0, 0);
+    if (result)
+        err(1, "sem_init");
+
+    result = clock_gettime(CLOCK_REALTIME, &ts);
+    if (result)
+        err(1, "clock_gettime");
+
+    ts.tv_sec += 10;
+
+    result = sem_timedwait(&sem, &ts);
+    if (result == 0) {
+        errx(1, "sem_timedwait succeeded?!");
+    } else if (errno != ETIMEDOUT) {
+        err(1, "clock_timedwait");
+    }
+
+    puts("timeout");
+
+    return (0);
+}