static void
all_bitmaps_dump()
{
unsigned int i;
for(i=0; i<THE_NUMBER_OF_FIXED_BLOCK; i++)
bitmap_dump(bitmap_info + i);
}
int main(int argc, char *argv[])
{
if (1) {
warn("---- test bitops ----");
unsigned char bits[16];
memset(bits, 0, sizeof(bits));
set_bits(bits, 6, 20);
set_bits(bits, 49, 16);
set_bits(bits, 0x51, 2);
hexdump(bits, sizeof(bits));
/* should return true */
printf("ones = %i\n", all_set(bits, 6, 20));
printf("ones = %i\n", all_set(bits, 49, 16));
printf("ones = %i\n", all_set(bits, 0x51, 2));
/* should return false */
printf("ones = %i\n", all_set(bits, 5, 20));
printf("ones = %i\n", all_set(bits, 49, 17));
printf("ones = %i\n", all_set(bits, 0x51, 3));
clear_bits(bits, 6, 20);
clear_bits(bits, 49, 16);
clear_bits(bits, 0x51, 2);
hexdump(bits, sizeof(bits)); // all zero now
/* corner case */
unsigned char *bitmap = malloc(7);
set_bits(bitmap, 0, 7 * 8);
int ret = all_set(bitmap, 0, 7 * 8);
assert(ret);
clear_bits(bitmap, 0, 7 * 8);
free(bitmap);
}
struct dev *dev = &(struct dev){ .bits = 3 };
struct sb *sb = rapid_sb(dev, .volblocks = 150);
struct inode *bitmap = rapid_open_inode(sb, NULL, 0);
sb->freeblocks = sb->volblocks;
sb->nextalloc = sb->volblocks; // this should wrap around to zero
sb->bitmap = bitmap;
init_buffers(dev, 1 << 20, 0);
unsigned blocksize = 1 << dev->bits;
unsigned dumpsize = blocksize > 16 ? 16 : blocksize;
for (int block = 0; block < 10; block++) {
struct buffer_head *buffer = blockget(bitmap->map, block);
memset(bufdata(buffer), 0, blocksize);
set_buffer_clean(buffer);
}
for (int i = 0; i < 12; i++) {
block_t block = balloc_from_range(sb, 121, 10, 1);
printf("%Li\n", (L)block);
}
hexdump(bufdata(blockget(bitmap->map, 0)), dumpsize);
hexdump(bufdata(blockget(bitmap->map, 1)), dumpsize);
hexdump(bufdata(blockget(bitmap->map, 2)), dumpsize);
block_t block;
sb->nextalloc++; // gap
for (int i = 0; i < 1; i++)
balloc(sb, 1, &block);
sb->nextalloc++; // gap
for (int i = 0; i < 10; i++)
balloc(sb, 1, &block);
hexdump(bufdata(blockget(bitmap->map, 0)), dumpsize);
hexdump(bufdata(blockget(bitmap->map, 1)), dumpsize);
hexdump(bufdata(blockget(bitmap->map, 2)), dumpsize);
bitmap_dump(bitmap, 0, sb->volblocks);
printf("%Li used, %Li free\n", (L)count_range(bitmap, 0, sb->volblocks), (L)sb->freeblocks);
bfree(sb, 0x7e, 1);
bfree(sb, 0x80, 1);
bitmap_dump(bitmap, 0, sb->volblocks);
exit(0);
}
