Use Layer IDs instead of handles in BufferCountTracker
Allows more versatility in looking up buffer counts by
layer ID. Layer handles will not always be available for
lookup.
Test: presubmit
Bug: b/294922229
Flag: EXEMPT pure refactoring
Change-Id: Ifba8b19f24f3f3cf35d247490a17fe3b8c4920e0
diff --git a/services/surfaceflinger/FrontEnd/LayerHandle.cpp b/services/surfaceflinger/FrontEnd/LayerHandle.cpp
index 75e4e3a..ffd51a4 100644
--- a/services/surfaceflinger/FrontEnd/LayerHandle.cpp
+++ b/services/surfaceflinger/FrontEnd/LayerHandle.cpp
@@ -28,7 +28,7 @@
LayerHandle::~LayerHandle() {
if (mFlinger) {
- mFlinger->onHandleDestroyed(this, mLayer, mLayerId);
+ mFlinger->onHandleDestroyed(mLayer, mLayerId);
}
}
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 65a0ed3..49b0c8c 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -4719,6 +4719,7 @@
for (auto& state : states) {
resolvedStates.emplace_back(std::move(state));
auto& resolvedState = resolvedStates.back();
+ resolvedState.layerId = LayerHandle::getLayerId(resolvedState.state.surface);
if (resolvedState.state.hasBufferChanges() && resolvedState.state.hasValidBuffer() &&
resolvedState.state.surface) {
sp<Layer> layer = LayerHandle::getLayer(resolvedState.state.surface);
@@ -4730,9 +4731,8 @@
if (resolvedState.externalTexture) {
resolvedState.state.bufferData->buffer = resolvedState.externalTexture->getBuffer();
}
- mBufferCountTracker.increment(resolvedState.state.surface->localBinder());
+ mBufferCountTracker.increment(resolvedState.layerId);
}
- resolvedState.layerId = LayerHandle::getLayerId(resolvedState.state.surface);
if (resolvedState.state.what & layer_state_t::eReparent) {
resolvedState.parentId =
getLayerIdFromSurfaceControl(resolvedState.state.parentSurfaceControlForChild);
@@ -5175,7 +5175,7 @@
std::atomic<int32_t>* pendingBufferCounter = layer->getPendingBufferCounter();
if (pendingBufferCounter) {
std::string counterName = layer->getPendingBufferCounterName();
- mBufferCountTracker.add(outResult.handle->localBinder(), counterName,
+ mBufferCountTracker.add(LayerHandle::getLayerId(outResult.handle), counterName,
pendingBufferCounter);
}
} break;
@@ -5223,7 +5223,7 @@
return NO_ERROR;
}
-void SurfaceFlinger::onHandleDestroyed(BBinder* handle, sp<Layer>& layer, uint32_t layerId) {
+void SurfaceFlinger::onHandleDestroyed(sp<Layer>& layer, uint32_t layerId) {
{
// Used to remove stalled transactions which uses an internal lock.
ftl::FakeGuard guard(kMainThreadContext);
@@ -5236,7 +5236,7 @@
Mutex::Autolock stateLock(mStateLock);
layer->onHandleDestroyed();
- mBufferCountTracker.remove(handle);
+ mBufferCountTracker.remove(layerId);
layer.clear();
setTransactionFlags(eTransactionFlushNeeded | eTransactionNeeded);
}
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 3eb72cc..db0e15e 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -296,7 +296,7 @@
// Called when all clients have released all their references to
// this layer. The layer may still be kept alive by its parents but
// the client can no longer modify this layer directly.
- void onHandleDestroyed(BBinder* handle, sp<Layer>& layer, uint32_t layerId);
+ void onHandleDestroyed(sp<Layer>& layer, uint32_t layerId);
TransactionCallbackInvoker& getTransactionCallbackInvoker() {
return mTransactionCallbackInvoker;
@@ -433,32 +433,32 @@
// This is done to avoid lock contention with the main thread.
class BufferCountTracker {
public:
- void increment(BBinder* layerHandle) {
+ void increment(uint32_t layerId) {
std::lock_guard<std::mutex> lock(mLock);
- auto it = mCounterByLayerHandle.find(layerHandle);
- if (it != mCounterByLayerHandle.end()) {
+ auto it = mCounterByLayerId.find(layerId);
+ if (it != mCounterByLayerId.end()) {
auto [name, pendingBuffers] = it->second;
int32_t count = ++(*pendingBuffers);
SFTRACE_INT(name.c_str(), count);
} else {
- ALOGW("Handle not found! %p", layerHandle);
+ ALOGW("Layer ID not found! %d", layerId);
}
}
- void add(BBinder* layerHandle, const std::string& name, std::atomic<int32_t>* counter) {
+ void add(uint32_t layerId, const std::string& name, std::atomic<int32_t>* counter) {
std::lock_guard<std::mutex> lock(mLock);
- mCounterByLayerHandle[layerHandle] = std::make_pair(name, counter);
+ mCounterByLayerId[layerId] = std::make_pair(name, counter);
}
- void remove(BBinder* layerHandle) {
+ void remove(uint32_t layerId) {
std::lock_guard<std::mutex> lock(mLock);
- mCounterByLayerHandle.erase(layerHandle);
+ mCounterByLayerId.erase(layerId);
}
private:
std::mutex mLock;
- std::unordered_map<BBinder*, std::pair<std::string, std::atomic<int32_t>*>>
- mCounterByLayerHandle GUARDED_BY(mLock);
+ std::unordered_map<uint32_t, std::pair<std::string, std::atomic<int32_t>*>>
+ mCounterByLayerId GUARDED_BY(mLock);
};
enum class BootStage {
diff --git a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
index 9dae06a..7a12f65 100644
--- a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
+++ b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
@@ -635,7 +635,7 @@
void destroyAllLayerHandles() {
ftl::FakeGuard guard(kMainThreadContext);
for (auto [layerId, legacyLayer] : mFlinger->mLegacyLayers) {
- mFlinger->onHandleDestroyed(nullptr, legacyLayer, layerId);
+ mFlinger->onHandleDestroyed(legacyLayer, layerId);
}
}