Hi,
While learning to program in cocoa, people usually start out without
giving much thought to memory management especially about freeing the
used up memory.
I can say so, because I know a few people like that and also I'm one
of them.
My focus was on to get started on the project quickly and complete it
ASAP.
But now that its almost finished up, I'm forced to think about freeing
memory.
These are 2 questions in a series of more upcoming ones.
1. There is an instance variable (NSMutableArray*) in my object, that
I use to hold a large number of elements.
Now when I destroy this object, I don't release the array.
Will it have any effect like making the program crash, subsequently?
Especially when I again create the same kind of object again and again
fill the array.
2. I'm feeding an object of type HDIR* named dirRoot to the
NSOutlineView.
This HDIR can have a number of children of type HDIR* stored in an
NSMutableArray * named children (an ivar in HDIR object).
So its a tree.
When I run the program, the Activity Monitor shows the virtual memory
increasing as this tree is populated.
After a substantial increase in VM, I stop the tree and then release
this dirRoot (HDIR*) object.
But at this time the VM remains the same in Activity Monitor.
The dirRoot may also be retained by some other object, but I have
taken care to release those objects as well.
So my question is whether this tree is released and the VM shown in
Activity Monitor may not be released back to the system.
OR the tree may not have been released at all?
the dealloc method of HDIR is as follows:
- (void)dealloc
{
if (children)
{
while ([children count])
{
HDIR *child = [children lastObject];
[children removeLastObject];
[child release];
}
[children release];
children = nil;
}
if (fileName)
{
[fileName release];
}
if (pathName)
{
[pathName release];
}
[super dealloc];
}
Is there a problem in this method?
Thanks,
Nick
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