int init_ext_introspection(int fd, int fs) {
char *buf;
int i;
struct ext_superblock_t superblock;
//struct sinode_t *sinode;
// get initialized time
time_t before, after;
before = time(NULL);
if (posix_memalign((void **) &buf, DOM0BLOCKSIZE, DOM0BLOCKSIZE) != 0) {
return -1;
}
if (get_superblock(&superblock, fd, buf, DOM0BLOCKSIZE, fs)) {
printf("get superblock error.\n");
}
free(buf);
dump_superblock(&superblock);
after = time(NULL);
after -= before ;//prevent warning
printf("time consumed:%lu\n", after);
return 0;
}
static int load_and_dump_sb(char *filename, int fd, u64 sb_bytenr, int full,
int force)
{
u8 super_block_data[BTRFS_SUPER_INFO_SIZE];
struct btrfs_super_block *sb;
u64 ret;
sb = (struct btrfs_super_block *)super_block_data;
ret = pread64(fd, super_block_data, BTRFS_SUPER_INFO_SIZE, sb_bytenr);
if (ret != BTRFS_SUPER_INFO_SIZE) {
/* check if the disk if too short for further superblock */
if (ret == 0 && errno == 0)
return 0;
fprintf(stderr,
"ERROR: Failed to read the superblock on %s at %llu\n",
filename, (unsigned long long)sb_bytenr);
fprintf(stderr,
"ERROR: error = '%s', errno = %d\n", strerror(errno), errno);
return 1;
}
printf("superblock: bytenr=%llu, device=%s\n", sb_bytenr, filename);
printf("---------------------------------------------------------\n");
if (btrfs_super_magic(sb) != BTRFS_MAGIC && !force) {
fprintf(stderr,
"ERROR: bad magic on superblock on %s at %llu\n",
filename, (unsigned long long)sb_bytenr);
} else {
dump_superblock(sb, full);
}
return 0;
}
void testsVblocks(){
initTestIndx();
dump_superblock();
printf("print_inode(2) : %d\n", print_inode(1));
unsigned int testBlock = vblock_of_fblock(1, 100, false);
printf("vblock_of_fblock(1, 100) = %u\n", testBlock);
printf("Volume %s plein\n", (isVolFull() == 0) ? "NON ":"");
printf("Espace restant : %d/%d (1 bloc reserve au superbloc)\n", volFreeSpace(), MBR.volumes[currentVol].size);
disp_freelist();
}
