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Add some diagnostics for memory management errors (deallocating a deallocated

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object).


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@26085 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Richard Frith-MacDonald 2008-02-18 09:59:16 +00:00
parent 0b6c65c4cc
commit 566d6ed569
2 changed files with 31 additions and 6 deletions
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3
ChangeLog
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@ -6,6 +6,9 @@
* Source/NSConnection.m: When creating a connection and getting its
proxy, release the connection immediately if the proxy is nil, so
that repeated calls don't use more resources.
* Source/NSNSAutoreleasePool.m: When emptying pool, add diagnostic
message and exceptions where an object we are releasing is bad in
some way.
2008-02-17 19:21-EST Gregory John Casamento <greg_casamento@yahoo.com>

34
Source/NSAutoreleasePool.m
View file

@ -385,22 +385,44 @@ static IMP initImp;
for (i = 0; i < released->count; i++)
{
id anObject = objects[i];
Class c = GSObjCClass(anObject);
unsigned hash = (((unsigned)(uintptr_t)c) >> 3) & 0x0f;
id anObject;
Class c;
unsigned hash;
anObject = objects[i];
objects[i] = nil;
if (anObject == nil)
{
fprintf(stderr,
"nil object encountered in autorelease pool\n");
continue;
}
c = GSObjCClass(anObject);
if (c == 0)
{
[NSException raise: NSInternalInconsistencyException
format: @"nul class for object in autorelease pool"];
}
hash = (((unsigned)(uintptr_t)c) >> 3) & 0x0f;
if (classes[hash] != c)
{
classes[hash] = c;
IMP imp;
if (GSObjCIsInstance(anObject))
{
imps[hash] = [c instanceMethodForSelector: releaseSel];
imp = [c instanceMethodForSelector: releaseSel];
}
else
{
imps[hash] = [c methodForSelector: releaseSel];
imp = [c methodForSelector: releaseSel];
}
if (imp == 0)
{
[NSException raise: NSInternalInconsistencyException
format: @"nul release for object in autorelease pool"];
}
classes[hash] = c;
imps[hash] = imp;
}
(imps[hash])(anObject, releaseSel);
}