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([NSObject -autorelease], [NSObject -release]):

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Add double_release checking.
([NSObject +enableDoubleReleaseCheck:]): New method.


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@529 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Andrew McCallum 1995-08-04 20:52:07 +00:00
parent e3689458b8
commit 973b8f6472
1 changed files with 27 additions and 0 deletions
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27
Source/NSObject.m
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@ -49,6 +49,10 @@ static coll_cache_ptr retain_counts = NULL;
/* The Class responsible for handling autorelease's */
static id autorelease_class = nil;
/* When this is `YES', every call to release/autorelease, checks to make sure
isn't being set up to release itself too many times. */
static BOOL double_release_check_enabled = NO;
BOOL NSShouldRetainWithZone(NSObject *anObject, NSZone *requestedZone)
{
if (!requestedZone || [anObject zone] == requestedZone)
@ -282,6 +286,15 @@ BOOL NSDecrementExtraRefCountWasZero(id anObject)
- autorelease
{
if (double_release_check_enabled)
{
unsigned release_count;
unsigned retain_count = [self retainCount];
release_count = [autorelease_class autoreleaseCountForObject:self];
if (release_count > retain_count)
[self error:"Autorelease would release object too many times."];
}
[autorelease_class addObject:self];
return self;
}
@ -352,6 +365,15 @@ BOOL NSDecrementExtraRefCountWasZero(id anObject)
- (oneway void) release
{
if (double_release_check_enabled)
{
unsigned release_count;
unsigned retain_count = [self retainCount];
release_count = [autorelease_class autoreleaseCountForObject:self];
if (release_count > retain_count)
[self error:"Release would release object too many times."];
}
if (NSDecrementExtraRefCountWasZero(self))
[self dealloc];
return;
@ -545,6 +567,11 @@ BOOL NSDecrementExtraRefCountWasZero(id anObject)
return autorelease_class;
}
+ (void) enableDoubleReleaseCheck: (BOOL)enable
{
double_release_check_enabled = enable;
}
- (int)compare:anotherObject;
{
if ([self isEqual:anotherObject])