static float
identify_partition(int fd, partition_data *partition, void **cookie)
{
DEBUG_INIT_ETC(NULL, ("fd: %d, id: %ld, offset: %Ld, "
"size: %Ld, block_size: %ld, flags: 0x%lx", fd,
partition->id, partition->offset, partition->size,
partition->block_size, partition->flags));
device_geometry geometry;
float result = -1;
if ((partition->flags & B_PARTITION_IS_DEVICE) != 0
&& partition->block_size == 2048
&& ioctl(fd, B_GET_GEOMETRY, &geometry) == 0
&& geometry.device_type == B_CD) {
Disc *disc = new(std::nothrow) Disc(fd);
if (disc != NULL && disc->InitCheck() == B_OK) {
// If we have only a single session then we can let the file system
// drivers play directly with the device.
Session *session = disc->GetSession(1);
if (session != NULL) {
result = 0.9f;
delete session;
} else
result = 0.1f;
*cookie = static_cast<void*>(disc);
} else
delete disc;
}
PRINT(("returning %g\n", result));
return result;
}
static status_t
scan_partition(int fd, partition_data *partition, void *cookie)
{
DEBUG_INIT_ETC(NULL, ("fd: %d, id: %ld, offset: %Ld, size: %Ld, "
"block_size: %ld, cookie: %p", fd, partition->id, partition->offset,
partition->size, partition->block_size, cookie));
Disc *disc = static_cast<Disc*>(cookie);
partition->status = B_PARTITION_VALID;
partition->flags |= B_PARTITION_PARTITIONING_SYSTEM
| B_PARTITION_READ_ONLY;
partition->content_size = partition->size;
Session *session = NULL;
status_t error = B_OK;
for (int i = 0; (session = disc->GetSession(i)); i++) {
partition_data *child = create_child_partition(partition->id,
i, partition->offset + session->Offset(), session->Size(), -1);
if (!child) {
PRINT(("Unable to create child at index %d.\n", i));
// something went wrong
error = B_ERROR;
break;
}
child->block_size = session->BlockSize();
child->flags |= session->Flags();
child->type = strdup(session->Type());
delete session;
if (!child->type) {
error = B_NO_MEMORY;
break;
}
child->parameters = NULL;
}
PRINT(("error: 0x%lx, `%s'\n", error, strerror(error)));
RETURN(error);
}