int decFreeInodes(int fd) {
char buf[BLOCK_SIZE];
// dec free inodes count in Super and GroupDesc
_get_block(fd, 1, buf);
Super * super = (Super *) buf;
super->s_free_inodes_count--;
put_block(fd, 1, buf);
_get_block(fd, 2, buf);
GroupDesc * gp = (GroupDesc *) buf;
gp->bg_free_inodes_count--;
put_block(fd, 2, buf);
return 0;
}
void ts_free (void * ptr )
{
t_block b;
if (_valid_addr(ptr)) {
//we get the block address
b = _get_block(ptr);
fuse_and_release(b);
}// else {
//printf("Invalid pointer on free %p\n", ptr);
// }
}
/* read and broadcast the file */
static void _bcast_file(void)
{
int buf_size;
ssize_t size_read = 0;
file_bcast_msg_t bcast_msg;
char *buffer;
if (params.block_size)
buf_size = MIN(params.block_size, f_stat.st_size);
else
buf_size = MIN((512 * 1024), f_stat.st_size);
bcast_msg.fname = params.dst_fname;
bcast_msg.block_no = 1;
bcast_msg.last_block = 0;
bcast_msg.force = params.force;
bcast_msg.modes = f_stat.st_mode;
bcast_msg.uid = f_stat.st_uid;
bcast_msg.user_name = uid_to_string(f_stat.st_uid);
bcast_msg.gid = f_stat.st_gid;
buffer = xmalloc(buf_size);
bcast_msg.block = buffer;
bcast_msg.block_len = 0;
bcast_msg.cred = sbcast_cred->sbcast_cred;
if (params.preserve) {
bcast_msg.atime = f_stat.st_atime;
bcast_msg.mtime = f_stat.st_mtime;
} else {
bcast_msg.atime = 0;
bcast_msg.mtime = 0;
}
while (1) {
bcast_msg.block_len = _get_block(buffer, buf_size);
debug("block %d, size %u", bcast_msg.block_no,
bcast_msg.block_len);
size_read += bcast_msg.block_len;
if (size_read >= f_stat.st_size)
bcast_msg.last_block = 1;
send_rpc(&bcast_msg, sbcast_cred);
if (bcast_msg.last_block)
break; /* end of file */
bcast_msg.block_no++;
}
xfree(bcast_msg.user_name);
xfree(buffer);
}
int ialloc(int fd) {
fputs("ialloc: ##################################################", stdout);
char buf[BLOCK_SIZE];
_get_block(fd, 1, buf);
Super * super = (Super *) buf;
int ninodes = (int) super->s_inodes_count;
printf("ninodes = %d\n", ninodes);
_get_block(fd, 2, buf);
GroupDesc * gp = (GroupDesc *) buf;
int imap = (int) gp->bg_inode_bitmap;
printf("imap = %d\n", imap);
// read inode_bitmap block
_get_block(fd, imap, buf);
for (int i = 0; i < ninodes; i++) {
if (tst_bit(buf, i) == 0) {
set_bit(buf, i);
decFreeInodes(fd);
put_block(fd, imap, buf);
return i + 1;
}
}
printf("ialloc(): no more free inodes\n");
return 0;
}
