[Crackerjack-devel-changes] SF.net SVN: crackerjack: [88] trunk/crackerjack/testcases/examples

[<ta...@us...>]

Revision: 88
          http://svn.sourceforge.net/crackerjack/?rev=88&view=rev
Author:   taru
Date:     2006-12-15 00:12:06 -0800 (Fri, 15 Dec 2006)

Log Message:
-----------
add precision test

Added Paths:
-----------
    trunk/crackerjack/testcases/examples/hello_precision_world/
    trunk/crackerjack/testcases/examples/hello_precision_world/Makefile
    trunk/crackerjack/testcases/examples/hello_precision_world/compare
    trunk/crackerjack/testcases/examples/hello_precision_world/hello_precision_world.c

Added: trunk/crackerjack/testcases/examples/hello_precision_world/Makefile
===================================================================
--- trunk/crackerjack/testcases/examples/hello_precision_world/Makefile	                        (rev 0)
+++ trunk/crackerjack/testcases/examples/hello_precision_world/Makefile	2006-12-15 08:12:06 UTC (rev 88)
@@ -0,0 +1,40 @@
+#
+# Crackerjack Project
+# 
+# Copyright (C) 2006 Red Hat Inc.  All Rights Reserved.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of version 2 of the GNU General Public License as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it would be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#
+# Further, this software is distributed without any warranty that it is
+# free of the rightful claim of any third person regarding infringement
+# or the like.  Any license provided herein, whether implied or
+# otherwise, applies only to this software file.  Patent licenses, if
+# any, provided herein do not apply to combinations of this program with
+# other software, or any other product whatsoever.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write the Free Software Foundation, Inc., 59
+# Temple Place - Suite 330, Boston MA 02111-1307, USA.
+#
+# $Id: test.c 34 2006-12-01 03:54:47Z kyagi $
+#
+
+test: hello_precision_world.c Makefile
+	$(CC) -o $@ $(CFLAGS) $<
+
+check: test
+	./test > test.log.1
+	sleep 1
+	./test > test.log.2
+	./compare test.log.1 test.log.2
+	/bin/rm -rf test.log.*
+
+clean:
+	/bin/rm -rf test.log.* test
+

Added: trunk/crackerjack/testcases/examples/hello_precision_world/compare
===================================================================
--- trunk/crackerjack/testcases/examples/hello_precision_world/compare	                        (rev 0)
+++ trunk/crackerjack/testcases/examples/hello_precision_world/compare	2006-12-15 08:12:06 UTC (rev 88)
@@ -0,0 +1,23 @@
+#!/bin/sh
+#
+# Simple compare program
+#
+# This compare program may not be useful because the comparision
+# algorithm is too load sensitive.
+#
+# This program check whether the difference of min and max between
+# each version is both less than 1ms.
+ 
+min0=`sort $1 | head -1`
+max0=`sort $1 | tail -1`
+
+min1=`sort $2 | head -1`
+max1=`sort $2 | tail -1`
+
+test $(expr `echo "$min0 * 1000000" | bc | cut -d. -f1` - \
+  `echo "$min1 * 1000000" | bc | cut -d. -f1` | cut -d- -f2) -lt 10000 && \
+test $(expr `echo "$max0 * 1000000" | bc | cut -d. -f1` - \
+  `echo "$max1 * 1000000" | bc | cut -d. -f1` | cut -d- -f2) -lt 10000
+
+
+


Property changes on: trunk/crackerjack/testcases/examples/hello_precision_world/compare
___________________________________________________________________
Name: svn:executable
   + *

Added: trunk/crackerjack/testcases/examples/hello_precision_world/hello_precision_world.c
===================================================================
--- trunk/crackerjack/testcases/examples/hello_precision_world/hello_precision_world.c	                        (rev 0)
+++ trunk/crackerjack/testcases/examples/hello_precision_world/hello_precision_world.c	2006-12-15 08:12:06 UTC (rev 88)
@@ -0,0 +1,49 @@
+#include <stdio.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+
+void print_result( struct timeval *start, struct timeval *end ) {
+        /* print the result */
+        printf( "%d.%06d\n",
+                 end->tv_sec - start->tv_sec -
+                         (((end->tv_usec - start->tv_usec)<0)?1:0),
+                 end->tv_usec - start->tv_usec +
+                         (( (end->tv_usec - start->tv_usec)<0)?1000000:0));
+}
+
+
+/*
+ * The simplest example for precision test.
+ *
+ */
+int main()
+{
+
+	fd_set rfds;
+	struct timeval tv;
+	struct timeval start, end;
+	int rval, i;
+
+
+	for( i = 0; i < 1000; i++ ) {
+		FD_ZERO(&rfds);
+		FD_SET(0, &rfds);
+	
+		tv.tv_sec = 0;
+		tv.tv_usec = 10000;
+
+		gettimeofday( &start, NULL );
+		rval = select(1, &rfds, NULL, NULL, &tv);
+		gettimeofday( &end, NULL );
+
+		if( rval != 0 ) {
+			fprintf( stderr, "timeout wans't occured\n");
+			return -1;
+		}
+		print_result( &start, &end );
+	}
+	return 0;
+}
+


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