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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "LayerTreeOwnerTracker.h"
#include "mozilla/StaticPtr.h" // for StaticAutoPtr
#include "mozilla/dom/ContentParent.h" // for ContentParent
#include "mozilla/gfx/GPUChild.h" // for GPUChild
#include "mozilla/gfx/GPUProcessManager.h" // for GPUProcessManager
#include <utility> // for std::make_pair
namespace mozilla {
namespace layers {
static StaticAutoPtr<LayerTreeOwnerTracker> sSingleton;
LayerTreeOwnerTracker::LayerTreeOwnerTracker() :
mLayerIdsLock("LayerTreeOwnerTrackerLock")
{
}
void
LayerTreeOwnerTracker::Initialize()
{
MOZ_ASSERT(!sSingleton);
sSingleton = new LayerTreeOwnerTracker();
}
void
LayerTreeOwnerTracker::Shutdown()
{
sSingleton = nullptr;
}
LayerTreeOwnerTracker*
LayerTreeOwnerTracker::Get()
{
return sSingleton;
}
void
LayerTreeOwnerTracker::Map(uint64_t aLayersId, base::ProcessId aProcessId)
{
MutexAutoLock lock(mLayerIdsLock);
// Add the mapping to the list
mLayerIds[aLayersId] = aProcessId;
}
void
LayerTreeOwnerTracker::Unmap(uint64_t aLayersId, base::ProcessId aProcessId)
{
MutexAutoLock lock(mLayerIdsLock);
MOZ_ASSERT(mLayerIds[aLayersId] == aProcessId);
mLayerIds.erase(aLayersId);
}
bool
LayerTreeOwnerTracker::IsMapped(uint64_t aLayersId, base::ProcessId aProcessId)
{
MutexAutoLock lock(mLayerIdsLock);
auto iter = mLayerIds.find(aLayersId);
return iter != mLayerIds.end() && iter->second == aProcessId;
}
void
LayerTreeOwnerTracker::Iterate(function<void(uint64_t aLayersId, base::ProcessId aProcessId)> aCallback)
{
MutexAutoLock lock(mLayerIdsLock);
for (const auto& iter : mLayerIds) {
aCallback(iter.first, iter.second);
}
}
} // namespace layers
} // namespace mozilla
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