>> >>> Is the IOObjectRelease() right or wrong ? >> I’m not entirely sure since I can’t find the docs for >> IOServicePortFromCGDisplayID. > > Given that the code fragment shows it as a message being sent to “self”, this > looks like Gabriel’s own method. By the standard Obj-C clang naming > conventions, this should return a non-owning (+0) reference, so it should not > be released without being explicitly retained. > > My guess is that it actually returns a +1 reference, but uses a non-standard > naming convention. In that case, the code is correct as written (although > unclear because it doesn’t follow the naming conventions). >
Sorry again for the incomplete question.
This is what my function IOServicePortFromCGDisplayID essentially does:
- (io_service_t) IOServicePortFromCGDisplayID: (CGDirectDisplayID) displayID
{
io_iterator_t iter;
io_service_t serv, servicePort = 0;
kern_return_t err = IOServiceGetMatchingServices( kIOMasterPortDefault,
matching, & iter );
while ( (serv = IOIteratorNext(iter)) != 0 )
{
... check some criteria
if ( it is not the right display )
continue;
servicePort = serv;
CFRelease(displayInfo);
break;
}
IOObjectRelease(iter);
return servicePort;
}
smime.p7s
Description: S/MIME cryptographic signature
_______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
