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AcquireReference() now returns the previous ref count.

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42079 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Rene Gollent
2011-06-10 01:55:12 +00:00
parent ad12a198d7
commit a99d0dd7b7
2 changed files with 6 additions and 3 deletions
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headers/private/shared/Referenceable.h
+1 -1
View File
@@ -17,7 +17,7 @@ public:
BReferenceable(); BReferenceable();
virtual ~BReferenceable(); virtual ~BReferenceable();
void AcquireReference(); int32 AcquireReference();
bool ReleaseReference(); bool ReleaseReference();
// returns true after last // returns true after last
src/kits/support/Referenceable.cpp
+5 -2
View File
@@ -28,13 +28,16 @@ BReferenceable::~BReferenceable()
} }
void int32
BReferenceable::AcquireReference() BReferenceable::AcquireReference()
{ {
if (atomic_add(&fReferenceCount, 1) == 0) int32 previousReferenceCount = atomic_add(&fReferenceCount, 1);
if (previousReferenceCount == 0)
FirstReferenceAcquired(); FirstReferenceAcquired();
TRACE("%p: acquire %ld\n", this, fReferenceCount); TRACE("%p: acquire %ld\n", this, fReferenceCount);
return previousReferenceCount;
} }