A bit more fine-tuning to BReferenceable debugging.

- Rework quick stack range check as suggested by Ingo.
- If the ref count is > 1 we invoke the debugger unconditionally.
- If equal to 1, we first perform a quick heuristic check to see if the
var might be on the stack. If we can't conclusively determine that is,
we make certain by comparing to the thread's actual stack range.

Rework debugging check in BReferenceable.

- If a BReferenceable object is deleted with a non-zero reference count,
we now test to see if the object was allocated on the stack. If so,
we don't flag a warning if the reference count is currently 1.

Add some additional BReferenceable debugging.

- When libbe is built in debug mode, BReferenceable now issues a
debugger call if it's destroyed without all references having been
released.

Adjust ReleaseReference() to also return the previous ref count as
AcquireReference() now does, and adjust all callers that relied on the previous
return type.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42091 a95241bf-73f2-0310-859d-f6bbb57e9c96

AcquireReference() now returns the previous ref count.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42079 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Removed the obsolescent [B]Reference[able] API and replaced the remaining
uses. Fixes the gcc 2 acpi build.
* Renamed WeakReferenceable::{Add,Remove}Reference() to
{Acquire,Release}Reference() for consistency.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39871 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added optional tracing support which can be very useful when debugging
reference count problems.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38866 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Made BReferenceable the class implementation and BPrivate::Referenceable the
typedef, so it's clearer which one is the preferred one.
* Added BReference, a clone of BPrivate::Reference.

BPrivate::{Referenceable,Reference} are being phased out. Only the B* versions
should be used.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33879 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Renamed {Add,Remove}Reference() to {Acquire,Release}Reference(). Methods with
the old names still exist as deprecated aliases for the time being.
* Introduced hooks FirstReferenceAcquired() and LastReferenceReleased(). Besides
added flexibility this also makes the deleteWhenUnreferenced constructor
parameter and the fDeleteWhenUnreferenced attribute superfluous, since the
"don't delete" behavior can be obtained by overriding LastReferenceReleased().
Parameter and attribute will be removed eventually.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31367 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Moved Referenceable.cpp to src/kits/support (private libbe API), and its header to
private/shared.
* Made AddReference() and CountReferences() inlines.
* The registrar is now using the private Referenceable version in libbe.so.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21767 a95241bf-73f2-0310-859d-f6bbb57e9c96

Adjust ReleaseReference() to also return the previous ref count as
AcquireReference() now does, and adjust all callers that relied on the previous
return type.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42091 a95241bf-73f2-0310-859d-f6bbb57e9c96

AcquireReference() now returns the previous ref count.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42079 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Removed the obsolescent [B]Reference[able] API and replaced the remaining
uses. Fixes the gcc 2 acpi build.
* Renamed WeakReferenceable::{Add,Remove}Reference() to
{Acquire,Release}Reference() for consistency.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39871 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added optional tracing support which can be very useful when debugging
reference count problems.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38866 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Made BReferenceable the class implementation and BPrivate::Referenceable the
typedef, so it's clearer which one is the preferred one.
* Added BReference, a clone of BPrivate::Reference.

BPrivate::{Referenceable,Reference} are being phased out. Only the B* versions
should be used.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33879 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Renamed {Add,Remove}Reference() to {Acquire,Release}Reference(). Methods with
the old names still exist as deprecated aliases for the time being.
* Introduced hooks FirstReferenceAcquired() and LastReferenceReleased(). Besides
added flexibility this also makes the deleteWhenUnreferenced constructor
parameter and the fDeleteWhenUnreferenced attribute superfluous, since the
"don't delete" behavior can be obtained by overriding LastReferenceReleased().
Parameter and attribute will be removed eventually.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31367 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Moved Referenceable.cpp to src/kits/support (private libbe API), and its header to
private/shared.
* Made AddReference() and CountReferences() inlines.
* The registrar is now using the private Referenceable version in libbe.so.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21767 a95241bf-73f2-0310-859d-f6bbb57e9c96