Re: DKIOCCDREADTOC ioctl() fails during debugging
Re: DKIOCCDREADTOC ioctl() fails during debugging
- Subject: Re: DKIOCCDREADTOC ioctl() fails during debugging
- From: "Justin C. Walker" <email@hidden>
- Date: Wed, 31 May 2006 08:45:36 -0700
On May 31, 2006, at 07:48 , Stephen F. Booth wrote:
I have run into a rather strange problem I can't get my head around.
I have a program that works correctly when run from Xcode or
Finder, but if I try to debug it a certain section of code fails
every time. I am simply opening a CD using opendev() than calling
ioctl() to read the disc's TOC:
_fd = opendev((char *)[[self deviceName]
fileSystemRepresentation], O_RDONLY | O_NONBLOCK, 0, NULL);
if(-1 == ioctl([self fileDescriptor], DKIOCCDREADTOC,
&cd_read_toc)) {
I've omitted the error handling code, but I do checking. opendev()
works every time, but as I mentioned, ioctl() fails from the
debugger. Any ideas why?
The system generally will tell you why something failed. I don't
think anyone here is in a position to guess why.
Cheers,
Justin
--
Justin C. Walker, Curmudgeon-at-Large
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