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Bug 936964 (part 2) - Make SurfaceCache ref-counted. r=seth.

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--HG--
extra : rebase_source : 0f6be3429ce653ca01bb5db7c8520c7e996acf67
This commit is contained in:
Nicholas Nethercote 2013-11-25 15:57:43 -08:00
parent 965e0bfae1
commit 8b9e2a854e
1 changed files with 7 additions and 4 deletions
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11
image/src/SurfaceCache.cpp
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@ -14,6 +14,7 @@
#include "mozilla/DebugOnly.h"
#include "mozilla/Preferences.h"
#include "mozilla/RefPtr.h"
#include "mozilla/StaticPtr.h"
#include "mozilla/Util.h" // for Maybe
#include "gfxASurface.h"
#include "gfxPattern.h" // Workaround for flaw in bug 921753 part 2.
@ -69,7 +70,7 @@ class SurfaceCacheImpl;
///////////////////////////////////////////////////////////////////////////////
// The single surface cache instance.
static SurfaceCacheImpl* sInstance = nullptr;
static StaticRefPtr<SurfaceCacheImpl> sInstance;
///////////////////////////////////////////////////////////////////////////////
@ -223,9 +224,11 @@ private:
* maintains high-level invariants and encapsulates the details of the surface
* cache's implementation.
*/
class SurfaceCacheImpl
class SurfaceCacheImpl : public nsISupports
{
public:
NS_DECL_ISUPPORTS
SurfaceCacheImpl(uint32_t aSurfaceCacheExpirationTimeMS,
uint32_t aSurfaceCacheSize)
: mExpirationTracker(MOZ_THIS_IN_INITIALIZER_LIST(),
@ -242,7 +245,7 @@ public:
os->AddObserver(mMemoryPressureObserver, "memory-pressure", false);
}
~SurfaceCacheImpl()
virtual ~SurfaceCacheImpl()
{
nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
if (os)
@ -458,6 +461,7 @@ private:
Cost mAvailableCost;
};
NS_IMPL_ISUPPORTS1(SurfaceCacheImpl, nsISupports)
NS_IMPL_ISUPPORTS1(SurfaceCacheImpl::MemoryPressureObserver, nsIObserver)
///////////////////////////////////////////////////////////////////////////////
@ -508,7 +512,6 @@ SurfaceCache::Initialize()
SurfaceCache::Shutdown()
{
MOZ_ASSERT(sInstance, "No singleton - was Shutdown() called twice?");
delete sInstance;
sInstance = nullptr;
}