void
EditorSectorsMenu::create_sector()
{
auto level = Editor::current()->get_level();
auto new_sector = SectorParser::from_nothing(*level);
if (!new_sector) {
log_warning << "Failed to create a new sector." << std::endl;
return;
}
// Find an unique name
std::string sector_name;
int num = 2;
do {
sector_name = "sector" + std::to_string(num);
num++;
} while ( level->get_sector(sector_name) );
*(new_sector->get_name_ptr()) = sector_name;
level->add_sector(move(new_sector));
Editor::current()->load_sector(level->get_sector_count() - 1);
MenuManager::instance().clear_menu_stack();
Editor::current()->reactivate_request = true;
}
int get_dev_geometry (int fd, __u32 *cyls, __u32 *heads, __u32 *sects,
__u64 *start_lba, __u64 *nsectors)
{
static struct local_hd_geometry g;
static struct local_hd_big_geometry bg;
int err = 0, try_getgeo_big_first = 1;
if (nsectors) {
err = get_sector_count(fd, nsectors);
if (err)
return err;
}
if (start_lba) {
/*
* HDIO_GETGEO uses 32-bit fields on 32-bit architectures,
* so it cannot be relied upon for start_lba with very large drives >= 2TB.
*/
__u64 result;
if (0 == sysfs_get_attr(fd, "start", "%llu", &result, NULL, 0)
|| 0 == get_raid1_start_lba(fd, &result))
{
*start_lba = result;
start_lba = NULL;
try_getgeo_big_first = 0; /* if kernel has sysfs, it probably lacks GETGEO_BIG */
} else if (fd_is_raid(fd)) {
*start_lba = START_LBA_UNKNOWN; /* RAID: no such thing as a "start_lba" */
start_lba = NULL;
try_getgeo_big_first = 0; /* no point even trying it on RAID */
}
}
if (cyls || heads || sects || start_lba) {
/* Skip HDIO_GETGEO_BIG (doesn't exist) on kernels with sysfs (>= 2.6.xx) */
if (try_getgeo_big_first && !ioctl(fd, HDIO_GETGEO_BIG, &bg)) {
if (cyls) *cyls = bg.cylinders;
if (heads) *heads = bg.heads;
if (sects) *sects = bg.sectors;
if (start_lba) *start_lba = bg.start;
} else if (!ioctl(fd, HDIO_GETGEO, &g)) {
if (cyls) *cyls = g.cylinders;
if (heads) *heads = g.heads;
if (sects) *sects = g.sectors;
if (start_lba) *start_lba = g.start;
} else if (!try_getgeo_big_first && !ioctl(fd, HDIO_GETGEO_BIG, &bg)) {
if (cyls) *cyls = bg.cylinders;
if (heads) *heads = bg.heads;
if (sects) *sects = bg.sectors;
if (start_lba) *start_lba = bg.start;
} else {
err = errno;
perror(" HDIO_GETGEO failed");
return err;
}
/*
* On all (32 and 64 bit) systems, the cyls value is bit-limited.
* So try and correct it using other info we have at hand.
*/
if (nsectors && cyls && heads && sects) {
__u64 hs = (*heads) * (*sects);
__u64 cyl = (*cyls);
__u64 chs = cyl * hs;
if (chs < (*nsectors))
*cyls = (*nsectors) / hs;
}
}
return 0;
}
