diff options
Diffstat (limited to 'Foundation/GTMSystemVersion.m')
| -rw-r--r-- | Foundation/GTMSystemVersion.m | 46 |
1 files changed, 41 insertions, 5 deletions
diff --git a/Foundation/GTMSystemVersion.m b/Foundation/GTMSystemVersion.m index a2e4d7b..da767ae 100644 --- a/Foundation/GTMSystemVersion.m +++ b/Foundation/GTMSystemVersion.m @@ -17,20 +17,55 @@ // #import "GTMSystemVersion.h" +#if GTM_MACOS_SDK +#import <Carbon/Carbon.h> +#endif -static int sGTMSystemVersionMajor = 0; -static int sGTMSystemVersionMinor = 0; -static int sGTMSystemVersionBugFix = 0; +static SInt32 sGTMSystemVersionMajor = 0; +static SInt32 sGTMSystemVersionMinor = 0; +static SInt32 sGTMSystemVersionBugFix = 0; @implementation GTMSystemVersion + (void)initialize { if (self == [GTMSystemVersion class]) { + // Gestalt is the recommended way of getting the OS version (despite a + // comment to the contrary in the 10.4 headers and docs; see + // <http://lists.apple.com/archives/carbon-dev/2007/Aug/msg00089.html>). + // The iPhone doesn't have Gestalt though, so use the plist there. +#if GTM_MACOS_SDK + require_noerr(Gestalt(gestaltSystemVersionMajor, &sGTMSystemVersionMajor), failedGestalt); + require_noerr(Gestalt(gestaltSystemVersionMinor, &sGTMSystemVersionMinor), failedGestalt); + require_noerr(Gestalt(gestaltSystemVersionBugFix, &sGTMSystemVersionBugFix), failedGestalt); + + return; + + failedGestalt: + ; +#if MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_3 + // gestaltSystemVersionMajor et al are only on 10.4 and above, so they + // could fail when running on 10.3. + SInt32 binaryCodedDec; + OSStatus err = err = Gestalt(gestaltSystemVersion, &binaryCodedDec); + _GTMDevAssert(!err, @"Unable to get version from Gestalt"); + + // Note that this code will return x.9.9 for any system rev parts that are + // greater than 9 (i.e., 10.10.10 will be 10.9.9). This shouldn't ever be a + // problem as the code above takes care of 10.4+. + int msb = (binaryCodedDec & 0x0000F000L) >> 12; + msb *= 10; + int lsb = (binaryCodedDec & 0x00000F00L) >> 8; + sGTMSystemVersionMajor = msb + lsb; + sGTMSystemVersionMinor = (binaryCodedDec & 0x000000F0L) >> 4; + sGTMSystemVersionBugFix = (binaryCodedDec & 0x0000000FL); +#endif // MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_3 + +#else // GTM_MACOS_SDK NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; NSDictionary *systemVersionPlist = [NSDictionary dictionaryWithContentsOfFile:@"/System/Library/CoreServices/SystemVersion.plist"]; NSString *version = [systemVersionPlist objectForKey:@"ProductVersion"]; _GTMDevAssert(version, @"Unable to get version"); NSArray *versionInfo = [version componentsSeparatedByString:@"."]; - int length = [versionInfo count]; + NSUInteger length = [versionInfo count]; _GTMDevAssert(length > 1 && length < 4, @"Unparseable version %@", version); sGTMSystemVersionMajor = [[versionInfo objectAtIndex:0] intValue]; _GTMDevAssert(sGTMSystemVersionMajor != 0, @"Unknown version for %@", version); @@ -39,6 +74,7 @@ static int sGTMSystemVersionBugFix = 0; sGTMSystemVersionBugFix = [[versionInfo objectAtIndex:2] intValue]; } [pool release]; +#endif // GTM_MACOS_SDK } } @@ -82,6 +118,6 @@ static int sGTMSystemVersionBugFix = 0; (sGTMSystemVersionMajor == 10 && sGTMSystemVersionMinor >= 5); } -#endif // GTM_IPHONE_SDK +#endif // GTM_MACOS_SDK @end |