internal DiscFreeBsd(string device)
{
int fd = open(device, O_RDONLY | O_NONBLOCK);
if (fd < 0)
{
throw new LocalDiscException(String.Format("Cannot open device `{0}'", device));
}
try {
ioc_toc_header h = new ioc_toc_header();
if (cd_read_toc_header(fd, ref h) < 0)
{
throw new LocalDiscException("Cannot read table of contents header");
}
if (h.ending_track == 0)
{
throw new LocalDiscException("This disc has no tracks");
}
first_track = h.starting_track;
last_track = h.ending_track;
int n = h.ending_track - h.starting_track + 1;
int len = (n + 1) * Marshal.SizeOf(typeof(cd_toc_entry));
ioc_read_toc_entry t = new ioc_read_toc_entry();
t.address_format = CD_LBA_FORMAT;
t.starting_track = 0;
t.data_len = (ushort)len;
t.data = Marshal.AllocHGlobal(len);
try {
if (cd_read_toc_entrys(fd, ref t) < 0)
{
throw new LocalDiscException("Cannot read table of contents entries");
}
for (int i = 0; i <= n; i++)
{
ulong offset = (ulong)(i * Marshal.SizeOf(typeof(cd_toc_entry)));
cd_toc_entry e = (cd_toc_entry)Marshal.PtrToStructure((IntPtr)((ulong)t.data + offset), typeof(cd_toc_entry));
track_offsets[first_track + i] = System.Net.IPAddress.NetworkToHostOrder(e.addr.lba) + 150;
}
// Move Leadout to the beginning.
track_offsets [0] = track_offsets [last_track + 1];
track_offsets [last_track + 1] = 0;
} finally {
Marshal.FreeHGlobal(t.data);
}
} finally {
close(fd);
}
Init();
}
internal DiscFreeBsd(string device)
{
int fd = open (device, O_RDONLY | O_NONBLOCK);
if (fd < 0) {
throw new LocalDiscException (String.Format ("Cannot open device `{0}'", device));
}
try {
ioc_toc_header h = new ioc_toc_header ();
if (cd_read_toc_header (fd, ref h) < 0) {
throw new LocalDiscException ("Cannot read table of contents header");
}
if (h.ending_track == 0) {
throw new LocalDiscException ("This disc has no tracks");
}
first_track = h.starting_track;
last_track = h.ending_track;
int n = h.ending_track - h.starting_track + 1;
int len = (n + 1) * Marshal.SizeOf (typeof (cd_toc_entry));
ioc_read_toc_entry t = new ioc_read_toc_entry ();
t.address_format = CD_LBA_FORMAT;
t.starting_track = 0;
t.data_len = (ushort) len;
t.data = Marshal.AllocHGlobal (len);
try {
if (cd_read_toc_entrys (fd, ref t) < 0) {
throw new LocalDiscException ("Cannot read table of contents entries");
}
for (int i = 0; i <= n; i++) {
ulong offset = (ulong) (i * Marshal.SizeOf (typeof (cd_toc_entry)));
cd_toc_entry e = (cd_toc_entry) Marshal.PtrToStructure ((IntPtr) ((ulong)t.data + offset), typeof (cd_toc_entry));
track_offsets[first_track + i] = System.Net.IPAddress.NetworkToHostOrder (e.addr.lba) + 150;
}
// Move Leadout to the beginning.
track_offsets [0] = track_offsets [last_track + 1];
track_offsets [last_track + 1] = 0;
} finally {
Marshal.FreeHGlobal (t.data);
}
} finally {
close (fd);
}
Init ();
}
static int cd_read_toc_header (int fd, ref ioc_toc_header data)
{
return cd_read_toc_header (fd, CDIOREADTOCHEADER, ref data);
}
static extern int cd_read_toc_header (int fd, ulong request, ref ioc_toc_header data);
static int cd_read_toc_header(int fd, ref ioc_toc_header data)
{
return(cd_read_toc_header(fd, CDIOREADTOCHEADER, ref data));
}
static extern int cd_read_toc_header(int fd, ulong request, ref ioc_toc_header data);
