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Darwin: Replace deprecated symbol kIOMasterPortDefault with equivalent

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We can't use the replacement kIOMainPortDefault yet, as it's not
available in operating system versions we still support, but the
kIOMasterPortDefault documentation explicitly says that passing
NULL as a port argument indicates "use the default".

As the underlying type of a mach_port_t is potentially either
a pointer or an unsigned int, we initialize the default to 0.

Pick-to: 6.2 6.3 6.4 5.15
Change-Id: I288aa94b8f2fbda47fd1cbaf329799db7ab988a0
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
This commit is contained in:
Tor Arne Vestbø 2022-07-05 15:38:33 +02:00
parent a50590370f
commit 337f28c9ab
1 changed files with 2 additions and 1 deletions
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3
src/corelib/global/qglobal.cpp
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@ -2977,7 +2977,8 @@ QByteArray QSysInfo::machineUniqueId()
{
#if defined(Q_OS_DARWIN) && __has_include(<IOKit/IOKitLib.h>)
char uuid[UuidStringLen + 1];
io_service_t service = IOServiceGetMatchingService(kIOMasterPortDefault, IOServiceMatching("IOPlatformExpertDevice"));
static const mach_port_t defaultPort = 0; // Effectively kIOMasterPortDefault/kIOMainPortDefault
io_service_t service = IOServiceGetMatchingService(defaultPort, IOServiceMatching("IOPlatformExpertDevice"));
QCFString stringRef = (CFStringRef)IORegistryEntryCreateCFProperty(service, CFSTR(kIOPlatformUUIDKey), kCFAllocatorDefault, 0);
CFStringGetCString(stringRef, uuid, sizeof(uuid), kCFStringEncodingMacRoman);
return QByteArray(uuid);