int
main (int argc, char **argv)
{
error_t err;
mach_port_t bootstrap;
/* Initialize the diskfs library, parse arguments, and open the store.
This starts the first diskfs thread for us. */
store = diskfs_init_main (&startup_argp, argc, argv,
&store_parsed, &bootstrap);
if (store->size < SBLOCK_OFFS + SBLOCK_SIZE)
ext2_panic ("device too small for superblock (%Ld bytes)", store->size);
if (store->log2_blocks_per_page < 0)
ext2_panic ("device block size (%zu) greater than page size (%zd)",
store->block_size, vm_page_size);
/* Map the entire disk. */
create_disk_pager ();
pokel_init (&global_pokel, diskfs_disk_pager, disk_cache);
map_hypermetadata ();
/* Set diskfs_root_node to the root inode. */
err = diskfs_cached_lookup (EXT2_ROOT_INO, &diskfs_root_node);
if (err)
ext2_panic ("can't get root: %s", strerror (err));
else if ((diskfs_root_node->dn_stat.st_mode & S_IFMT) == 0)
ext2_panic ("no root node!");
pthread_mutex_unlock (&diskfs_root_node->lock);
/* Now that we are all set up to handle requests, and diskfs_root_node is
set properly, it is safe to export our fsys control port to the
outside world. */
diskfs_startup_diskfs (bootstrap, 0);
/* and so we die, leaving others to do the real work. */
pthread_exit (NULL);
/* NOTREACHED */
return 0;
}
/* The user must define this function if she wants to use the node
cache. Create and initialize a node. */
error_t
diskfs_user_make_node (struct node **npp, struct lookup_context *ctx)
{
struct node *np;
struct disknode *dn;
/* Create the new node. */
np = diskfs_make_node_alloc (sizeof *dn);
if (np == NULL)
return ENOMEM;
/* Format specific data for the new node. */
dn = diskfs_node_disknode (np);
dn->dirents = 0;
dn->dir_idx = 0;
dn->pager = 0;
pthread_rwlock_init (&dn->alloc_lock, NULL);
pokel_init (&dn->indir_pokel, diskfs_disk_pager, disk_cache);
*npp = np;
return 0;
}