SF: Remove StartPropertySetThread
Reimplement with std::async and std::future to cut the boilerplate, and
remove the dependency on the deprecated Thread class from libutils.
Bug: 324366212
Test: Boot.
Test: adb shell killall system_server
Change-Id: Id39dab356cc267f1575bba4010f3b161c1d0923c
diff --git a/services/surfaceflinger/Android.bp b/services/surfaceflinger/Android.bp
index d771803..2a4327f 100644
--- a/services/surfaceflinger/Android.bp
+++ b/services/surfaceflinger/Android.bp
@@ -210,7 +210,6 @@
"Scheduler/VsyncModulator.cpp",
"Scheduler/VsyncSchedule.cpp",
"ScreenCaptureOutput.cpp",
- "StartPropertySetThread.cpp",
"SurfaceFlinger.cpp",
"SurfaceFlingerDefaultFactory.cpp",
"Tracing/LayerDataSource.cpp",
diff --git a/services/surfaceflinger/StartPropertySetThread.cpp b/services/surfaceflinger/StartPropertySetThread.cpp
deleted file mode 100644
index f42cd53..0000000
--- a/services/surfaceflinger/StartPropertySetThread.cpp
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <cutils/properties.h>
-#include "StartPropertySetThread.h"
-
-namespace android {
-
-StartPropertySetThread::StartPropertySetThread(bool timestampPropertyValue):
- Thread(false), mTimestampPropertyValue(timestampPropertyValue) {}
-
-status_t StartPropertySetThread::Start() {
- return run("SurfaceFlinger::StartPropertySetThread", PRIORITY_NORMAL);
-}
-
-bool StartPropertySetThread::threadLoop() {
- // Set property service.sf.present_timestamp, consumer need check its readiness
- property_set(kTimestampProperty, mTimestampPropertyValue ? "1" : "0");
- // Clear BootAnimation exit flag
- property_set("service.bootanim.exit", "0");
- property_set("service.bootanim.progress", "0");
- // Start BootAnimation if not started
- property_set("ctl.start", "bootanim");
- // Exit immediately
- return false;
-}
-
-} // namespace android
diff --git a/services/surfaceflinger/StartPropertySetThread.h b/services/surfaceflinger/StartPropertySetThread.h
deleted file mode 100644
index bbdcde2..0000000
--- a/services/surfaceflinger/StartPropertySetThread.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_STARTBOOTANIMTHREAD_H
-#define ANDROID_STARTBOOTANIMTHREAD_H
-
-#include <stddef.h>
-
-#include <utils/Mutex.h>
-#include <utils/Thread.h>
-
-namespace android {
-
-class StartPropertySetThread : public Thread {
-// Boot animation is triggered via calls to "property_set()" which can block
-// if init's executing slow operation such as 'mount_all --late' (currently
-// happening 1/10th with fsck) concurrently. Running in a separate thread
-// allows to pursue the SurfaceFlinger's init process without blocking.
-// see b/34499826.
-// Any property_set() will block during init stage so need to be offloaded
-// to this thread. see b/63844978.
-public:
- explicit StartPropertySetThread(bool timestampPropertyValue);
- status_t Start();
-private:
- virtual bool threadLoop();
- static constexpr const char* kTimestampProperty = "service.sf.present_timestamp";
- const bool mTimestampPropertyValue;
-};
-
-}
-
-#endif // ANDROID_STARTBOOTANIMTHREAD_H
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 2501f4b..50cd45b 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -153,7 +153,6 @@
#include "Scheduler/VsyncConfiguration.h"
#include "Scheduler/VsyncModulator.h"
#include "ScreenCaptureOutput.h"
-#include "StartPropertySetThread.h"
#include "SurfaceFlingerProperties.h"
#include "TimeStats/TimeStats.h"
#include "TunnelModeEnabledReporter.h"
@@ -566,7 +565,14 @@
initializeDisplays();
}));
- startBootAnim();
+ std::lock_guard lock(mInitBootPropsFutureMutex);
+ if (!mInitBootPropsFuture.valid()) {
+ mInitBootPropsFuture =
+ std::async(std::launch::async, &SurfaceFlinger::initBootProperties, this);
+ }
+
+ mInitBootPropsFuture.wait();
+ mInitBootPropsFuture = {};
}
void SurfaceFlinger::run() {
@@ -722,13 +728,15 @@
}
mBootFinished = true;
FlagManager::getMutableInstance().markBootCompleted();
- if (mStartPropertySetThread->join() != NO_ERROR) {
- ALOGE("Join StartPropertySetThread failed!");
+
+ if (std::lock_guard lock(mInitBootPropsFutureMutex); mInitBootPropsFuture.valid()) {
+ mInitBootPropsFuture.wait();
+ mInitBootPropsFuture = {};
+ }
+ if (mRenderEnginePrimeCacheFuture.valid()) {
+ mRenderEnginePrimeCacheFuture.wait();
}
- if (mRenderEnginePrimeCacheFuture.valid()) {
- mRenderEnginePrimeCacheFuture.get();
- }
const nsecs_t now = systemTime();
const nsecs_t duration = now - mBootTime;
ALOGI("Boot is finished (%ld ms)", long(ns2ms(duration)) );
@@ -816,8 +824,6 @@
}
}
-// Do not call property_set on main thread which will be blocked by init
-// Use StartPropertySetThread instead.
void SurfaceFlinger::init() FTL_FAKE_GUARD(kMainThreadContext) {
ATRACE_CALL();
ALOGI( "SurfaceFlinger's main thread ready to run. "
@@ -928,18 +934,28 @@
}
}
- // Inform native graphics APIs whether the present timestamp is supported:
-
- mStartPropertySetThread = getFactory().createStartPropertySetThread(mHasReliablePresentFences);
-
- if (mStartPropertySetThread->Start() != NO_ERROR) {
- ALOGE("Run StartPropertySetThread failed!");
+ // Avoid blocking the main thread on `init` to set properties.
+ if (std::lock_guard lock(mInitBootPropsFutureMutex); !mInitBootPropsFuture.valid()) {
+ mInitBootPropsFuture =
+ std::async(std::launch::async, &SurfaceFlinger::initBootProperties, this);
}
initTransactionTraceWriter();
ALOGV("Done initializing");
}
+// During boot, offload `initBootProperties` to another thread. `property_set` depends on
+// `property_service`, which may be delayed by slow operations like `mount_all --late` in
+// the `init` process. See b/34499826 and b/63844978.
+void SurfaceFlinger::initBootProperties() {
+ property_set("service.sf.present_timestamp", mHasReliablePresentFences ? "1" : "0");
+
+ // Reset and (if needed) start BootAnimation.
+ property_set("service.bootanim.exit", "0");
+ property_set("service.bootanim.progress", "0");
+ property_set("ctl.start", "bootanim");
+}
+
void SurfaceFlinger::initTransactionTraceWriter() {
if (!mTransactionTracing) {
return;
@@ -979,18 +995,6 @@
static_cast<ui::ColorMode>(base::GetIntProperty("persist.sys.sf.color_mode"s, 0));
}
-void SurfaceFlinger::startBootAnim() {
- // Start boot animation service by setting a property mailbox
- // if property setting thread is already running, Start() will be just a NOP
- mStartPropertySetThread->Start();
- // Wait until property was set
- if (mStartPropertySetThread->join() != NO_ERROR) {
- ALOGE("Join StartPropertySetThread failed!");
- }
-}
-
-// ----------------------------------------------------------------------------
-
status_t SurfaceFlinger::getSupportedFrameTimestamps(
std::vector<FrameEvent>* outSupported) const {
*outSupported = {
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 005f2e6..b9ea0c3 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -550,7 +550,7 @@
bool hasListenerCallbacks, const std::vector<ListenerCallbacks>& listenerCallbacks,
uint64_t transactionId, const std::vector<uint64_t>& mergedTransactionIds) override;
void bootFinished();
- virtual status_t getSupportedFrameTimestamps(std::vector<FrameEvent>* outSupported) const;
+ status_t getSupportedFrameTimestamps(std::vector<FrameEvent>* outSupported) const;
sp<IDisplayEventConnection> createDisplayEventConnection(
gui::ISurfaceComposer::VsyncSource vsyncSource =
gui::ISurfaceComposer::VsyncSource::eVsyncSourceApp,
@@ -871,9 +871,6 @@
// Traverse through all the layers and compute and cache its bounds.
void computeLayerBounds();
- // Boot animation, on/off animations and screen capture
- void startBootAnim();
-
bool layersHasProtectedLayer(const std::vector<std::pair<Layer*, sp<LayerFE>>>& layers) const;
void captureScreenCommon(RenderAreaFuture, GetLayerSnapshotsFunction, ui::Size bufferSize,
@@ -1184,10 +1181,17 @@
ui::Rotation getPhysicalDisplayOrientation(DisplayId, bool isPrimary) const
REQUIRES(mStateLock);
void traverseLegacyLayers(const LayerVector::Visitor& visitor) const;
+
+ void initBootProperties();
void initTransactionTraceWriter();
- sp<StartPropertySetThread> mStartPropertySetThread;
+
surfaceflinger::Factory& mFactory;
pid_t mPid;
+
+ // TODO: b/328459745 - Encapsulate in a SystemProperties object.
+ std::mutex mInitBootPropsFutureMutex;
+ std::future<void> mInitBootPropsFuture GUARDED_BY(mInitBootPropsFutureMutex);
+
std::future<void> mRenderEnginePrimeCacheFuture;
// mStateLock has conventions related to the current thread, because only
diff --git a/services/surfaceflinger/SurfaceFlingerDefaultFactory.cpp b/services/surfaceflinger/SurfaceFlingerDefaultFactory.cpp
index 7e6894d..50b167d 100644
--- a/services/surfaceflinger/SurfaceFlingerDefaultFactory.cpp
+++ b/services/surfaceflinger/SurfaceFlingerDefaultFactory.cpp
@@ -26,7 +26,6 @@
#include "FrameTracer/FrameTracer.h"
#include "Layer.h"
#include "NativeWindowSurface.h"
-#include "StartPropertySetThread.h"
#include "SurfaceFlingerDefaultFactory.h"
#include "SurfaceFlingerProperties.h"
@@ -53,11 +52,6 @@
}
}
-sp<StartPropertySetThread> DefaultFactory::createStartPropertySetThread(
- bool timestampPropertyValue) {
- return sp<StartPropertySetThread>::make(timestampPropertyValue);
-}
-
sp<DisplayDevice> DefaultFactory::createDisplayDevice(DisplayDeviceCreationArgs& creationArgs) {
return sp<DisplayDevice>::make(creationArgs);
}
diff --git a/services/surfaceflinger/SurfaceFlingerDefaultFactory.h b/services/surfaceflinger/SurfaceFlingerDefaultFactory.h
index 2c6de0e..540dec8 100644
--- a/services/surfaceflinger/SurfaceFlingerDefaultFactory.h
+++ b/services/surfaceflinger/SurfaceFlingerDefaultFactory.h
@@ -29,7 +29,6 @@
std::unique_ptr<HWComposer> createHWComposer(const std::string& serviceName) override;
std::unique_ptr<scheduler::VsyncConfiguration> createVsyncConfiguration(
Fps currentRefreshRate) override;
- sp<StartPropertySetThread> createStartPropertySetThread(bool timestampPropertyValue) override;
sp<DisplayDevice> createDisplayDevice(DisplayDeviceCreationArgs&) override;
sp<GraphicBuffer> createGraphicBuffer(uint32_t width, uint32_t height, PixelFormat format,
uint32_t layerCount, uint64_t usage,
diff --git a/services/surfaceflinger/SurfaceFlingerFactory.h b/services/surfaceflinger/SurfaceFlingerFactory.h
index f310c4a..f1fbf01 100644
--- a/services/surfaceflinger/SurfaceFlingerFactory.h
+++ b/services/surfaceflinger/SurfaceFlingerFactory.h
@@ -39,7 +39,6 @@
class IGraphicBufferProducer;
class Layer;
class LayerFE;
-class StartPropertySetThread;
class SurfaceFlinger;
class TimeStats;
@@ -71,8 +70,6 @@
virtual std::unique_ptr<scheduler::VsyncConfiguration> createVsyncConfiguration(
Fps currentRefreshRate) = 0;
- virtual sp<StartPropertySetThread> createStartPropertySetThread(
- bool timestampPropertyValue) = 0;
virtual sp<DisplayDevice> createDisplayDevice(DisplayDeviceCreationArgs&) = 0;
virtual sp<GraphicBuffer> createGraphicBuffer(uint32_t width, uint32_t height,
PixelFormat format, uint32_t layerCount,
diff --git a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
index bce7729..82023b0 100644
--- a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
+++ b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
@@ -43,7 +43,6 @@
#include "RenderArea.h"
#include "Scheduler/MessageQueue.h"
#include "Scheduler/RefreshRateSelector.h"
-#include "StartPropertySetThread.h"
#include "SurfaceFlinger.h"
#include "TestableScheduler.h"
#include "mock/DisplayHardware/MockComposer.h"
@@ -94,10 +93,6 @@
return std::make_unique<scheduler::FakePhaseOffsets>();
}
- sp<StartPropertySetThread> createStartPropertySetThread(bool timestampPropertyValue) override {
- return sp<StartPropertySetThread>::make(timestampPropertyValue);
- }
-
sp<DisplayDevice> createDisplayDevice(DisplayDeviceCreationArgs& creationArgs) override {
return sp<DisplayDevice>::make(creationArgs);
}