os161/kern/test/bitmaptest.c
2015-12-23 00:50:04 +00:00

107 lines
2.7 KiB
C

/*
* Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
* The President and Fellows of Harvard College.
*
* 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.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY 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 UNIVERSITY 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.
*/
#include <types.h>
#include <lib.h>
#include <bitmap.h>
#include <test.h>
#define TESTSIZE 533
int
bitmaptest(int nargs, char **args)
{
struct bitmap *b;
char data[TESTSIZE];
uint32_t x;
int i;
(void)nargs;
(void)args;
kprintf("Starting bitmap test...\n");
for (i=0; i<TESTSIZE; i++) {
data[i] = random()%2;
}
b = bitmap_create(TESTSIZE);
KASSERT(b != NULL);
for (i=0; i<TESTSIZE; i++) {
KASSERT(bitmap_isset(b, i)==0);
}
for (i=0; i<TESTSIZE; i++) {
if (data[i]) {
bitmap_mark(b, i);
}
}
for (i=0; i<TESTSIZE; i++) {
if (data[i]) {
KASSERT(bitmap_isset(b, i));
}
else {
KASSERT(bitmap_isset(b, i)==0);
}
}
for (i=0; i<TESTSIZE; i++) {
if (data[i]) {
bitmap_unmark(b, i);
}
else {
bitmap_mark(b, i);
}
}
for (i=0; i<TESTSIZE; i++) {
if (data[i]) {
KASSERT(bitmap_isset(b, i)==0);
}
else {
KASSERT(bitmap_isset(b, i));
}
}
while (bitmap_alloc(b, &x)==0) {
KASSERT(x < TESTSIZE);
KASSERT(bitmap_isset(b, x));
KASSERT(data[x]==1);
data[x] = 0;
}
for (i=0; i<TESTSIZE; i++) {
KASSERT(bitmap_isset(b, i));
KASSERT(data[i]==0);
}
kprintf("Bitmap test complete\n");
return 0;
}