Re: MoreSCF 1.1 and Cross-Development
Re: MoreSCF 1.1 and Cross-Development
- Subject: Re: MoreSCF 1.1 and Cross-Development
- From: Quinn <email@hidden>
- Date: Tue, 23 Oct 2007 14:21:14 +0100
At 15:09 +0200 23/10/07, Tobias Walser wrote:
Sadly, it fails to run on 10.2.8 and 10.3.9 and I don't think it was
because of the dust on my machines ;)
MoreSCFPortScanner.c: You should install a port name callback.
/Users/tobi/Documents/workspace/bluedisk/mac/lib/MoreSCF/MoreSCFCCLScanner.c:167:
failed assertion `onHoldRef != NULL'
Abort
I had this warning about the port name callback before but until now
the code was working fine.
The port name warning is unrelated to the crash. The port name
warning is explained in the comments in "MoreSCFPortScanner.h".
Check 'em out.
The crash is a bug in MoreSCF <rdar://problem/5517319>.
Specifically, there's an incorrect assert in the code. This won't
affect production code (which is one of the reasons I haven't revved
the sample), but it causes a false assert on the debug build. The
easy fix is to comment out the lines:
assert(onHoldRef != NULL);
assert( CFGetTypeID(onHoldRef) == CFNumberGetTypeID() );
The correct fix is to replace the lines:
onHoldRef = (CFNumberRef) CFDictionaryGetValue([...]);
assert(onHoldRef != NULL);
assert( CFGetTypeID(onHoldRef) == CFNumberGetTypeID() );
if ( (onHoldRef != NULL) && CFNumberGetValue([...]) && (onHold != 0) ) {
assert(onHold == 1); // would be weird otherwise
gDefaultCCL = CFSTR("Apple Internal 56K Modem (v.92)");
CFQRetain(gDefaultCCL);
}
with:
onHoldRef = (CFNumberRef) CFDictionaryGetValue(
thisPort,
kSCPropNetInterfaceSupportsModemOnHold
);
if (onHoldRef != NULL) {
assert( CFGetTypeID(onHoldRef) == CFNumberGetTypeID() );
if ( CFNumberGetValue(onHoldRef, kCFNumberIntType, &onHold)
&& (onHold != 0) ) {
assert(onHold == 1); // would be weird otherwise
gDefaultCCL = CFSTR("Apple Internal 56K Modem (v.92)");
CFQRetain(gDefaultCCL);
}
}
Share and Enjoy
--
Quinn "The Eskimo!" <http://www.apple.com/developer/>
Apple Developer Relations, Developer Technical Support, Core OS/Hardware
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