bitmap_test.c

mobile ip 在linux下的一种实现

/* $Id: bitmap_test.c,v 1.2 2000/04/06 07:26:53 jm Exp $
 * Dynamic bitmap test
 *
 * Dynamic hierarchial IP tunnel
 * Copyright (C) 1998-2000, Dynamics group
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation. See README and COPYING for
 * more details.
 */

#include <stdio.h>
#include <assert.h>

#include "bitmap.h"

extern int opt_debug;


#if 0
struct bitmap {
	int size; /* number of bits in the bitmap */
	int u32s; /* number of 32-bit values needed for the bitmap */
	__u32 *bits; /* dynamically allocated storage for bits */
};


struct bitmap *bitmap_init(int start_size);
void bitmap_destroy(struct bitmap *map);

int bitmap_get_free(struct bitmap *map);
int bitmap_release(struct bitmap *map, int bit);
voit bitmap_debug_print(struct bitmap *map);
#endif


int main(int argc, char *argv[])
{
	struct bitmap *map;
	int i, j;

	printf("Bitmap test\n\n");

	map = bitmap_init(10);
	assert(map != NULL);

	bitmap_debug_print(map);

	for (i = 0; i < 33; i++) {
		j = bitmap_get_free(map);
		printf("%i ==> %i\n", i, j);
		bitmap_debug_print(map);
		printf("\n");
	}

	printf("Releasing..\n");

	for (i = 0; i < 33; i++) {
		bitmap_release(map, i);
		printf("release %i:\n", i);
		bitmap_debug_print(map);
		printf("\n");
	}

	bitmap_destroy(map);

	return 0;
}