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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:
rfm 2008-02-18 09:59:16 +00:00
parent 4daa8d64f8
commit aa3dfae174
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 * Source/NSConnection.m: When creating a connection and getting its
proxy, release the connection immediately if the proxy is nil, so proxy, release the connection immediately if the proxy is nil, so
that repeated calls don't use more resources. 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> 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++) for (i = 0; i < released->count; i++)
{ {
id anObject = objects[i]; id anObject;
Class c = GSObjCClass(anObject); Class c;
unsigned hash = (((unsigned)(uintptr_t)c) >> 3) & 0x0f; unsigned hash;
anObject = objects[i];
objects[i] = nil; 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) if (classes[hash] != c)
{ {
classes[hash] = c; IMP imp;
if (GSObjCIsInstance(anObject)) if (GSObjCIsInstance(anObject))
{ {
imps[hash] = [c instanceMethodForSelector: releaseSel]; imp = [c instanceMethodForSelector: releaseSel];
} }
else 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); (imps[hash])(anObject, releaseSel);
} }