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More tweaks for garbage collection mode, including making NSNotificationCenter use weak pointers (things are never removed if it uses strong pointers because they remove themselves in the -dealloc method, which is never called, and can't remove themselves in the -finalize method because the -finalize method would not be called until after they have been removed - this is consistent with Apple behaviour).

Browse source 
Gorm now works correctly when built with GC enabled.



git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33109 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
David Chisnall 2011-05-25 11:15:08 +00:00
parent a439972605
commit b08b2d0f34
7 changed files with 20 additions and 26 deletions
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12
Source/NSObject.m
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@ -494,7 +494,7 @@ NSDecrementExtraRefCountWasZero(id anObject)
inline NSUInteger
NSExtraRefCount(id anObject)
{
#if GS_WITH_GC
#if GS_WITH_GC || __OBJC_GC__
return UINT_MAX - 1;
#else /* GS_WITH_GC */
return ((obj)anObject)[-1].retained;
@ -1723,7 +1723,7 @@ objc_create_block_classes_as_subclasses_of(Class super);
*/
- (id) autorelease
{
#if GS_WITH_GC == 0
#if !GS_WITH_GC && !__OBJC_GC__
if (double_release_check_enabled)
{
NSUInteger release_count;
@ -1935,7 +1935,7 @@ objc_create_block_classes_as_subclasses_of(Class super);
*/
- (oneway void) release
{
#if GS_WITH_GC == 0 && !__OBJC_GC__
#if (GS_WITH_GC == 0) && !__OBJC_GC__
if (NSDecrementExtraRefCountWasZero(self))
{
[self dealloc];
@ -1985,7 +1985,7 @@ objc_create_block_classes_as_subclasses_of(Class super);
*/
- (id) retain
{
#if GS_WITH_GC == 0 && !__OBJC_GC__
#if (GS_WITH_GC == 0) && !__OBJC_GC__
NSIncrementExtraRefCount(self);
#endif
return self;
@ -2012,7 +2012,7 @@ objc_create_block_classes_as_subclasses_of(Class super);
*/
- (NSUInteger) retainCount
{
#if GS_WITH_GC
#if GS_WITH_GC || __OBJC_GC__
return UINT_MAX;
#else
return NSExtraRefCount(self) + 1;
@ -2042,7 +2042,7 @@ objc_create_block_classes_as_subclasses_of(Class super);
*/
- (NSZone*) zone
{
#if GS_WITH_GC
#if GS_WITH_GC || __OBJC_GC__
/* MacOS-X 10.5 seems to return the default malloc zone if GC is enabled.
*/
return NSDefaultMallocZone();