int main(int argc, char *argv[])
{
#define BITMAP_BLOCKS 10
struct dev *dev = &(struct dev){ .bits = 3 };
/* This expect buffer is never reclaimed */
init_buffers(dev, 1 << 20, 1);
block_t volblocks = BITMAP_BLOCKS << (dev->bits + 3);
struct sb *sb = rapid_sb(dev);
sb->super = INIT_DISKSB(dev->bits, volblocks);
setup_sb(sb, &sb->super);
test_init(argv[0]);
struct inode *bitmap = rapid_open_inode(sb, NULL, 0);
sb->bitmap = bitmap;
/* Setup buffers for bitmap */
for (int block = 0; block < BITMAP_BLOCKS; block++) {
struct buffer_head *buffer = blockget(bitmap->map, block);
memset(bufdata(buffer), 0, sb->blocksize);
set_buffer_clean(buffer);
blockput(buffer);
}
/* Set fake backend mark to modify backend objects. */
tux3_start_backend(sb);
if (test_start("test01"))
test01(sb, BITMAP_BLOCKS);
test_end();
if (test_start("test02"))
test02(sb, BITMAP_BLOCKS);
test_end();
if (test_start("test03"))
test03(sb, BITMAP_BLOCKS);
test_end();
if (test_start("test04"))
test04(sb, BITMAP_BLOCKS);
test_end();
if (test_start("test05"))
test05(sb, BITMAP_BLOCKS);
test_end();
if (test_start("test06"))
test06(sb, BITMAP_BLOCKS);
test_end();
if (test_start("test07"))
test07(sb, BITMAP_BLOCKS);
test_end();
if (test_start("test08"))
test08(sb, BITMAP_BLOCKS);
test_end();
tux3_end_backend();
clean_main(sb);
return test_failures();
}
/* Test basic operations */
static void test01(struct sb *sb, struct inode *inode)
{
/*
* FIXME: map_region() are not supporting to read segments on
* multiple leaves at once.
*/
#define CAN_HANDLE_A_LEAF 1
/* Create by ascending order */
if (test_start("test01.1")) {
struct block_segment seg;
int err, segs;
/* Set fake backend mark to modify backend objects. */
tux3_start_backend(sb);
for (int i = 0, j = 0; i < 30; i++, j++) {
segs = d_map_region(inode, 2*i, 1, &seg, 1, MAP_WRITE);
test_assert(segs == 1);
}
#ifdef CAN_HANDLE_A_LEAF
for (int i = 0; i < 30; i++) {
segs = check_map_region(inode, 2*i, 1, &seg, 1);
test_assert(segs == 1);
}
#else
segs = check_map_region(inode, 0, 30*2, seg, ARRAY_SIZE(seg));
test_assert(segs == 30*2);
#endif
/* btree_chop and dleaf_chop test */
int index = 31*2;
while (index--) {
err = btree_chop(&tux_inode(inode)->btree, index,
TUXKEY_LIMIT);
test_assert(!err);
#ifdef CAN_HANDLE_A_LEAF
for (int i = 0; i < 30; i++) {
if (index <= i*2)
break;
segs = check_map_region(inode, 2*i, 1, &seg, 1);
test_assert(segs == 1);
}
#else
segs = check_map_region(inode, 0, 30*2, seg,
ARRAY_SIZE(seg));
test_assert(segs == i*2);
#endif
}
/* Check if truncated all */
segs = map_region(inode, 0, INT_MAX, &seg, 1, MAP_READ);
test_assert(segs == 1);
test_assert(seg.count == INT_MAX);
test_assert(seg.state == BLOCK_SEG_HOLE);
tux3_end_backend();
test_assert(force_delta(sb) == 0);
clean_main(sb, inode);
}
test_end();
/* Create by descending order */
if (test_start("test01.2")) {
struct block_segment seg;
int err, segs;
/* Set fake backend mark to modify backend objects. */
tux3_start_backend(sb);
for (int i = 30; i >= 0; i--) {
segs = d_map_region(inode, 2*i, 1, &seg, 1, MAP_WRITE);
test_assert(segs == 1);
}
#ifdef CAN_HANDLE_A_LEAF
for (int i = 30; i >= 0; i--) {
segs = check_map_region(inode, 2*i, 1, &seg, 1);
test_assert(segs == 1);
}
#else
segs = check_map_region(inode, 0, 30*2, seg, ARRAY_SIZE(seg));
test_assert(segs == i*2);
#endif
err = btree_chop(&tux_inode(inode)->btree, 0, TUXKEY_LIMIT);
test_assert(!err);
/* Check if truncated all */
segs = map_region(inode, 0, INT_MAX, &seg, 1, MAP_READ);
test_assert(segs == 1);
test_assert(seg.count == INT_MAX);
test_assert(seg.state == BLOCK_SEG_HOLE);
tux3_end_backend();
test_assert(force_delta(sb) == 0);
clean_main(sb, inode);
}
test_end();
test_assert(force_delta(sb) == 0);
clean_main(sb, inode);
}
int make_tux3(struct sb *sb)
{
int err;
err = clear_other_magic(sb);
if (err)
return err;
change_begin_atomic(sb);
trace("create bitmap");
sb->bitmap = create_internal_inode(sb, TUX_BITMAP_INO, NULL);
if (IS_ERR(sb->bitmap)) {
err = PTR_ERR(sb->bitmap);
goto error_change_end;
}
change_end_atomic(sb);
/* Set fake backend mark to modify backend objects. */
tux3_start_backend(sb);
err = reserve_superblock(sb);
tux3_end_backend();
if (err)
goto error;
change_begin_atomic(sb);
#if 0
trace("create version table");
sb->vtable = create_internal_inode(sb, TUX_VTABLE_INO, NULL);
if (IS_ERR(sb->vtable)) {
err = PTR_ERR(sb->vtable);
goto error_change_end;
}
#endif
trace("create atom dictionary");
sb->atable = create_internal_inode(sb, TUX_ATABLE_INO, NULL);
if (IS_ERR(sb->atable)) {
err = PTR_ERR(sb->atable);
goto error_change_end;
}
trace("create root directory");
struct tux_iattr root_iattr = { .mode = S_IFDIR | 0755, };
sb->rootdir = create_internal_inode(sb, TUX_ROOTDIR_INO, &root_iattr);
if (IS_ERR(sb->rootdir)) {
err = PTR_ERR(sb->rootdir);
goto error_change_end;
}
change_end_atomic(sb);
err = sync_super(sb);
if (err)
goto error;
show_buffers(mapping(sb->bitmap));
show_buffers(mapping(sb->rootdir));
show_buffers(sb->volmap->map);
return 0;
error_change_end:
change_end_atomic(sb);
error:
tux3_err(sb, "eek, %s", strerror(-err));
iput(sb->bitmap);
sb->bitmap = NULL;
return err;
}
int tux3_init_mem(void)
{
return tux3_init_hole_cache();
}
void tux3_exit_mem(void)
{
tux3_destroy_hole_cache();
}