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-rw-r--r--services/surfaceflinger/Barrier.h59
-rw-r--r--services/surfaceflinger/MonitoredProducer.cpp8
-rw-r--r--services/surfaceflinger/Scheduler/MessageQueue.cpp40
-rw-r--r--services/surfaceflinger/Scheduler/MessageQueue.h68
-rw-r--r--services/surfaceflinger/SurfaceFlinger.cpp314
-rw-r--r--services/surfaceflinger/SurfaceFlinger.h13
-rw-r--r--services/surfaceflinger/tests/unittests/CompositionTest.cpp8
-rw-r--r--services/surfaceflinger/tests/unittests/mock/MockMessageQueue.cpp15
-rw-r--r--services/surfaceflinger/tests/unittests/mock/MockMessageQueue.h8
9 files changed, 183 insertions, 350 deletions
diff --git a/services/surfaceflinger/Barrier.h b/services/surfaceflinger/Barrier.h
deleted file mode 100644
index 97028a89fa..0000000000
--- a/services/surfaceflinger/Barrier.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright (C) 2007 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_BARRIER_H
-#define ANDROID_BARRIER_H
-
-#include <stdint.h>
-#include <condition_variable>
-#include <mutex>
-
-namespace android {
-
-class Barrier
-{
-public:
- // Release any threads waiting at the Barrier.
- // Provides release semantics: preceding loads and stores will be visible
- // to other threads before they wake up.
- void open() {
- std::lock_guard<std::mutex> lock(mMutex);
- mIsOpen = true;
- mCondition.notify_all();
- }
-
- // Reset the Barrier, so wait() will block until open() has been called.
- void close() {
- std::lock_guard<std::mutex> lock(mMutex);
- mIsOpen = false;
- }
-
- // Wait until the Barrier is OPEN.
- // Provides acquire semantics: no subsequent loads or stores will occur
- // until wait() returns.
- void wait() const {
- std::unique_lock<std::mutex> lock(mMutex);
- mCondition.wait(lock, [this]() NO_THREAD_SAFETY_ANALYSIS { return mIsOpen; });
- }
-private:
- mutable std::mutex mMutex;
- mutable std::condition_variable mCondition;
- int mIsOpen GUARDED_BY(mMutex){false};
-};
-
-}; // namespace android
-
-#endif // ANDROID_BARRIER_H
diff --git a/services/surfaceflinger/MonitoredProducer.cpp b/services/surfaceflinger/MonitoredProducer.cpp
index 5009e10532..18a28918fd 100644
--- a/services/surfaceflinger/MonitoredProducer.cpp
+++ b/services/surfaceflinger/MonitoredProducer.cpp
@@ -38,13 +38,7 @@ MonitoredProducer::~MonitoredProducer() {
// because we don't know where this destructor is called from. It could be
// called with the mStateLock held, leading to a dead-lock (it actually
// happens).
- sp<LambdaMessage> cleanUpListMessage =
- new LambdaMessage([flinger = mFlinger, asBinder = wp<IBinder>(onAsBinder())]() {
- Mutex::Autolock lock(flinger->mStateLock);
- flinger->mGraphicBufferProducerList.erase(asBinder);
- });
-
- mFlinger->postMessageAsync(cleanUpListMessage);
+ mFlinger->removeGraphicBufferProducerAsync(onAsBinder());
}
status_t MonitoredProducer::requestBuffer(int slot, sp<GraphicBuffer>* buf) {
diff --git a/services/surfaceflinger/Scheduler/MessageQueue.cpp b/services/surfaceflinger/Scheduler/MessageQueue.cpp
index 9d6e1d864a..6067e69ea0 100644
--- a/services/surfaceflinger/Scheduler/MessageQueue.cpp
+++ b/services/surfaceflinger/Scheduler/MessageQueue.cpp
@@ -18,10 +18,6 @@
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wconversion"
-#include <errno.h>
-#include <stdint.h>
-#include <sys/types.h>
-
#include <binder/IPCThreadState.h>
#include <utils/Log.h>
@@ -35,26 +31,7 @@
#include "MessageQueue.h"
#include "SurfaceFlinger.h"
-namespace android {
-
-// ---------------------------------------------------------------------------
-
-MessageBase::MessageBase() : MessageHandler() {}
-
-MessageBase::~MessageBase() {}
-
-void MessageBase::handleMessage(const Message&) {
- this->handler();
- barrier.open();
-};
-
-// ---------------------------------------------------------------------------
-
-MessageQueue::~MessageQueue() = default;
-
-// ---------------------------------------------------------------------------
-
-namespace impl {
+namespace android::impl {
void MessageQueue::Handler::dispatchRefresh() {
if ((android_atomic_or(eventMaskRefresh, &mEventMask) & eventMaskRefresh) == 0) {
@@ -123,14 +100,8 @@ void MessageQueue::waitMessage() {
} while (true);
}
-status_t MessageQueue::postMessage(const sp<MessageBase>& messageHandler, nsecs_t relTime) {
- const Message dummyMessage;
- if (relTime > 0) {
- mLooper->sendMessageDelayed(relTime, messageHandler, dummyMessage);
- } else {
- mLooper->sendMessage(messageHandler, dummyMessage);
- }
- return NO_ERROR;
+void MessageQueue::postMessage(sp<MessageHandler>&& handler) {
+ mLooper->sendMessage(handler, Message());
}
void MessageQueue::invalidate() {
@@ -160,10 +131,7 @@ int MessageQueue::eventReceiver(int /*fd*/, int /*events*/) {
return 1;
}
-// ---------------------------------------------------------------------------
-
-} // namespace impl
-} // namespace android
+} // namespace android::impl
// TODO(b/129481165): remove the #pragma below and fix conversion issues
#pragma clang diagnostic pop // ignored "-Wconversion"
diff --git a/services/surfaceflinger/Scheduler/MessageQueue.h b/services/surfaceflinger/Scheduler/MessageQueue.h
index ebc4315ec9..132b416c88 100644
--- a/services/surfaceflinger/Scheduler/MessageQueue.h
+++ b/services/surfaceflinger/Scheduler/MessageQueue.h
@@ -14,12 +14,12 @@
* limitations under the License.
*/
-#ifndef ANDROID_MESSAGE_QUEUE_H
-#define ANDROID_MESSAGE_QUEUE_H
+#pragma once
-#include <errno.h>
-#include <stdint.h>
-#include <sys/types.h>
+#include <cstdint>
+#include <future>
+#include <type_traits>
+#include <utility>
#include <utils/Looper.h>
#include <utils/Timers.h>
@@ -28,52 +28,30 @@
#include <gui/IDisplayEventConnection.h>
#include <private/gui/BitTube.h>
-#include "Barrier.h"
#include "EventThread.h"
-#include <functional>
-
namespace android {
class SurfaceFlinger;
-// ---------------------------------------------------------------------------
-
-class MessageBase : public MessageHandler {
-public:
- MessageBase();
-
- // return true if message has a handler
- virtual bool handler() = 0;
-
- // waits for the handler to be processed
- void wait() const { barrier.wait(); }
+template <typename F>
+class Task : public MessageHandler {
+ template <typename G>
+ friend auto makeTask(G&&);
-protected:
- virtual ~MessageBase();
+ explicit Task(F&& f) : mTask(std::move(f)) {}
-private:
- virtual void handleMessage(const Message& message);
+ void handleMessage(const Message&) override { mTask(); }
- mutable Barrier barrier;
+ using T = std::invoke_result_t<F>;
+ std::packaged_task<T()> mTask;
};
-class LambdaMessage : public MessageBase {
-public:
- explicit LambdaMessage(std::function<void()> handler)
- : MessageBase(), mHandler(std::move(handler)) {}
-
- bool handler() override {
- mHandler();
- // This return value is no longer checked, so it's always safe to return true
- return true;
- }
-
-private:
- const std::function<void()> mHandler;
-};
-
-// ---------------------------------------------------------------------------
+template <typename F>
+inline auto makeTask(F&& f) {
+ sp<Task<F>> task = new Task<F>(std::move(f));
+ return std::make_pair(task, task->mTask.get_future());
+}
class MessageQueue {
public:
@@ -82,12 +60,12 @@ public:
REFRESH = 1,
};
- virtual ~MessageQueue();
+ virtual ~MessageQueue() = default;
virtual void init(const sp<SurfaceFlinger>& flinger) = 0;
virtual void setEventConnection(const sp<EventThreadConnection>& connection) = 0;
virtual void waitMessage() = 0;
- virtual status_t postMessage(const sp<MessageBase>& message, nsecs_t reltime = 0) = 0;
+ virtual void postMessage(sp<MessageHandler>&&) = 0;
virtual void invalidate() = 0;
virtual void refresh() = 0;
};
@@ -127,7 +105,7 @@ public:
void setEventConnection(const sp<EventThreadConnection>& connection) override;
void waitMessage() override;
- status_t postMessage(const sp<MessageBase>& message, nsecs_t reltime = 0) override;
+ void postMessage(sp<MessageHandler>&&) override;
// sends INVALIDATE message at next VSYNC
void invalidate() override;
@@ -136,9 +114,5 @@ public:
void refresh() override;
};
-// ---------------------------------------------------------------------------
-
} // namespace impl
} // namespace android
-
-#endif /* ANDROID_MESSAGE_QUEUE_H */
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 380634303a..29434990f6 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -410,15 +410,13 @@ SurfaceFlinger::SurfaceFlinger(Factory& factory) : SurfaceFlinger(factory, SkipI
useFrameRateApi = use_frame_rate_api(true);
}
-void SurfaceFlinger::onFirstRef()
-{
+SurfaceFlinger::~SurfaceFlinger() = default;
+
+void SurfaceFlinger::onFirstRef() {
mEventQueue->init(this);
}
-SurfaceFlinger::~SurfaceFlinger() = default;
-
-void SurfaceFlinger::binderDied(const wp<IBinder>& /* who */)
-{
+void SurfaceFlinger::binderDied(const wp<IBinder>&) {
// the window manager died on us. prepare its eulogy.
mBootFinished = false;
@@ -429,21 +427,25 @@ void SurfaceFlinger::binderDied(const wp<IBinder>& /* who */)
startBootAnim();
}
-static sp<ISurfaceComposerClient> initClient(const sp<Client>& client) {
- status_t err = client->initCheck();
- if (err == NO_ERROR) {
- return client;
+void SurfaceFlinger::run() {
+ while (true) {
+ mEventQueue->waitMessage();
}
- return nullptr;
+}
+
+template <typename F, typename T>
+inline std::future<T> SurfaceFlinger::schedule(F&& f) {
+ auto [task, future] = makeTask(std::move(f));
+ mEventQueue->postMessage(std::move(task));
+ return std::move(future);
}
sp<ISurfaceComposerClient> SurfaceFlinger::createConnection() {
- return initClient(new Client(this));
+ const sp<Client> client = new Client(this);
+ return client->initCheck() == NO_ERROR ? client : nullptr;
}
-sp<IBinder> SurfaceFlinger::createDisplay(const String8& displayName,
- bool secure)
-{
+sp<IBinder> SurfaceFlinger::createDisplay(const String8& displayName, bool secure) {
class DisplayToken : public BBinder {
sp<SurfaceFlinger> flinger;
virtual ~DisplayToken() {
@@ -579,7 +581,7 @@ void SurfaceFlinger::bootFinished()
LOG_EVENT_LONG(LOGTAG_SF_STOP_BOOTANIM,
ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
- postMessageAsync(new LambdaMessage([this]() NO_THREAD_SAFETY_ANALYSIS {
+ static_cast<void>(schedule([this]() NO_THREAD_SAFETY_ANALYSIS {
readPersistentProperties();
mPowerAdvisor.onBootFinished();
mBootStage = BootStage::FINISHED;
@@ -607,9 +609,12 @@ uint32_t SurfaceFlinger::getNewTexture() {
// The pool was empty, so we need to get a new texture name directly using a
// blocking call to the main thread
- uint32_t name = 0;
- postMessageSync(new LambdaMessage([&]() { getRenderEngine().genTextures(1, &name); }));
- return name;
+ return schedule([this] {
+ uint32_t name = 0;
+ getRenderEngine().genTextures(1, &name);
+ return name;
+ })
+ .get();
}
void SurfaceFlinger::deleteTextureAsync(uint32_t texture) {
@@ -663,7 +668,7 @@ void SurfaceFlinger::init() {
// mStateLock from the vr flinger dispatch thread might trigger a
// deadlock in surface flinger (see b/66916578), so post a message
// to be handled on the main thread instead.
- postMessageAsync(new LambdaMessage([=] {
+ static_cast<void>(schedule([=] {
ALOGI("VR request display mode: requestDisplay=%d", requestDisplay);
mVrFlingerRequestsDisplay = requestDisplay;
signalTransaction();
@@ -985,29 +990,26 @@ status_t SurfaceFlinger::setActiveConfig(const sp<IBinder>& displayToken, int mo
return BAD_VALUE;
}
- status_t result = NAME_NOT_FOUND;
-
- postMessageSync(new LambdaMessage([&]() {
+ auto future = schedule([=]() -> status_t {
const auto display = getDisplayDeviceLocked(displayToken);
if (!display) {
ALOGE("Attempt to set allowed display configs for invalid display token %p",
displayToken.get());
+ return NAME_NOT_FOUND;
} else if (display->isVirtual()) {
ALOGW("Attempt to set allowed display configs for virtual display");
- result = INVALID_OPERATION;
+ return INVALID_OPERATION;
} else {
- HwcConfigIndexType config(mode);
- const auto& refreshRate = mRefreshRateConfigs->getRefreshRateFromConfigId(config);
- result = setDesiredDisplayConfigSpecsInternal(display,
- scheduler::RefreshRateConfigs::
- Policy{config,
- refreshRate.getFps(),
- refreshRate.getFps()},
- /*overridePolicy=*/false);
+ const HwcConfigIndexType config(mode);
+ const float fps = mRefreshRateConfigs->getRefreshRateFromConfigId(config).getFps();
+ const scheduler::RefreshRateConfigs::Policy policy{config, fps, fps};
+ constexpr bool kOverridePolicy = false;
+
+ return setDesiredDisplayConfigSpecsInternal(display, policy, kOverridePolicy);
}
- }));
+ });
- return result;
+ return future.get();
}
void SurfaceFlinger::setActiveConfigInternal() {
@@ -1181,7 +1183,7 @@ ColorMode SurfaceFlinger::getActiveColorMode(const sp<IBinder>& displayToken) {
}
status_t SurfaceFlinger::setActiveColorMode(const sp<IBinder>& displayToken, ColorMode mode) {
- postMessageSync(new LambdaMessage([&] {
+ schedule([=] {
Vector<ColorMode> modes;
getDisplayColorModes(displayToken, &modes);
bool exists = std::find(std::begin(modes), std::end(modes), mode) != std::end(modes);
@@ -1203,7 +1205,7 @@ status_t SurfaceFlinger::setActiveColorMode(const sp<IBinder>& displayToken, Col
RenderIntent::COLORIMETRIC,
Dataspace::UNKNOWN});
}
- }));
+ }).wait();
return NO_ERROR;
}
@@ -1227,7 +1229,7 @@ status_t SurfaceFlinger::getAutoLowLatencyModeSupport(const sp<IBinder>& display
}
void SurfaceFlinger::setAutoLowLatencyMode(const sp<IBinder>& displayToken, bool on) {
- postMessageAsync(new LambdaMessage([=] {
+ static_cast<void>(schedule([=] {
if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
getHwComposer().setAutoLowLatencyMode(*displayId, on);
} else {
@@ -1258,7 +1260,7 @@ status_t SurfaceFlinger::getGameContentTypeSupport(const sp<IBinder>& displayTok
}
void SurfaceFlinger::setGameContentType(const sp<IBinder>& displayToken, bool on) {
- postMessageAsync(new LambdaMessage([=] {
+ static_cast<void>(schedule([=] {
if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
const auto type = on ? hal::ContentType::GAME : hal::ContentType::NONE;
getHwComposer().setContentType(*displayId, type);
@@ -1348,18 +1350,17 @@ status_t SurfaceFlinger::getDisplayedContentSamplingAttributes(const sp<IBinder>
status_t SurfaceFlinger::setDisplayContentSamplingEnabled(const sp<IBinder>& displayToken,
bool enable, uint8_t componentMask,
uint64_t maxFrames) {
- status_t result = NAME_NOT_FOUND;
-
- postMessageSync(new LambdaMessage([&] {
- if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
- result = getHwComposer().setDisplayContentSamplingEnabled(*displayId, enable,
- componentMask, maxFrames);
- } else {
- ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
- }
- }));
-
- return result;
+ return schedule([=]() -> status_t {
+ if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
+ return getHwComposer().setDisplayContentSamplingEnabled(*displayId, enable,
+ componentMask,
+ maxFrames);
+ } else {
+ ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
+ return NAME_NOT_FOUND;
+ }
+ })
+ .get();
}
status_t SurfaceFlinger::getDisplayedContentSample(const sp<IBinder>& displayToken,
@@ -1401,14 +1402,14 @@ status_t SurfaceFlinger::isWideColorDisplay(const sp<IBinder>& displayToken,
}
status_t SurfaceFlinger::enableVSyncInjections(bool enable) {
- postMessageSync(new LambdaMessage([&] {
+ schedule([=] {
Mutex::Autolock lock(mStateLock);
if (const auto handle = mScheduler->enableVSyncInjection(enable)) {
mEventQueue->setEventConnection(
mScheduler->getEventConnection(enable ? handle : mSfConnectionHandle));
}
- }));
+ }).wait();
return NO_ERROR;
}
@@ -1490,17 +1491,15 @@ status_t SurfaceFlinger::setDisplayBrightness(const sp<IBinder>& displayToken, f
return BAD_VALUE;
}
- status_t result = NAME_NOT_FOUND;
-
- postMessageSync(new LambdaMessage([&] {
- if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
- result = getHwComposer().setDisplayBrightness(*displayId, brightness);
- } else {
- ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
- }
- }));
-
- return result;
+ return schedule([=]() -> status_t {
+ if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
+ return getHwComposer().setDisplayBrightness(*displayId, brightness);
+ } else {
+ ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
+ return NAME_NOT_FOUND;
+ }
+ })
+ .get();
}
status_t SurfaceFlinger::notifyPowerHint(int32_t hintId) {
@@ -1523,12 +1522,6 @@ sp<IDisplayEventConnection> SurfaceFlinger::createDisplayEventConnection(
return mScheduler->createDisplayEventConnection(handle, configChanged);
}
-// ----------------------------------------------------------------------------
-
-void SurfaceFlinger::waitForEvent() {
- mEventQueue->waitMessage();
-}
-
void SurfaceFlinger::signalTransaction() {
mScheduler->resetIdleTimer();
mPowerAdvisor.notifyDisplayUpdateImminent();
@@ -1546,26 +1539,6 @@ void SurfaceFlinger::signalRefresh() {
mEventQueue->refresh();
}
-status_t SurfaceFlinger::postMessageAsync(const sp<MessageBase>& msg,
- nsecs_t reltime, uint32_t /* flags */) {
- return mEventQueue->postMessage(msg, reltime);
-}
-
-status_t SurfaceFlinger::postMessageSync(const sp<MessageBase>& msg,
- nsecs_t reltime, uint32_t /* flags */) {
- status_t res = mEventQueue->postMessage(msg, reltime);
- if (res == NO_ERROR) {
- msg->wait();
- }
- return res;
-}
-
-void SurfaceFlinger::run() {
- do {
- waitForEvent();
- } while (true);
-}
-
nsecs_t SurfaceFlinger::getVsyncPeriod() const {
const auto displayId = getInternalDisplayIdLocked();
if (!displayId || !getHwComposer().isConnected(*displayId)) {
@@ -1683,8 +1656,8 @@ void SurfaceFlinger::setPrimaryVsyncEnabled(bool enabled) {
// Enable / Disable HWVsync from the main thread to avoid race conditions with
// display power state.
- postMessageAsync(new LambdaMessage(
- [=]() NO_THREAD_SAFETY_ANALYSIS { setPrimaryVsyncEnabledInternal(enabled); }));
+ static_cast<void>(
+ schedule([=]() NO_THREAD_SAFETY_ANALYSIS { setPrimaryVsyncEnabledInternal(enabled); }));
}
void SurfaceFlinger::setPrimaryVsyncEnabledInternal(bool enabled) {
@@ -3210,6 +3183,13 @@ status_t SurfaceFlinger::addClientLayer(const sp<Client>& client, const sp<IBind
return NO_ERROR;
}
+void SurfaceFlinger::removeGraphicBufferProducerAsync(const wp<IBinder>& binder) {
+ static_cast<void>(schedule([=] {
+ Mutex::Autolock lock(mStateLock);
+ mGraphicBufferProducerList.erase(binder);
+ }));
+}
+
uint32_t SurfaceFlinger::peekTransactionFlags() {
return mTransactionFlags;
}
@@ -4133,8 +4113,7 @@ void SurfaceFlinger::onInitializeDisplays() {
void SurfaceFlinger::initializeDisplays() {
// Async since we may be called from the main thread.
- postMessageAsync(
- new LambdaMessage([this]() NO_THREAD_SAFETY_ANALYSIS { onInitializeDisplays(); }));
+ static_cast<void>(schedule([this]() NO_THREAD_SAFETY_ANALYSIS { onInitializeDisplays(); }));
}
void SurfaceFlinger::setVsyncEnabledInHWC(DisplayId displayId, hal::Vsync enabled) {
@@ -4225,7 +4204,7 @@ void SurfaceFlinger::setPowerModeInternal(const sp<DisplayDevice>& display, hal:
}
void SurfaceFlinger::setPowerMode(const sp<IBinder>& displayToken, int mode) {
- postMessageSync(new LambdaMessage([&]() NO_THREAD_SAFETY_ANALYSIS {
+ schedule([=]() NO_THREAD_SAFETY_ANALYSIS {
const auto display = getDisplayDeviceLocked(displayToken);
if (!display) {
ALOGE("Attempt to set power mode %d for invalid display token %p", mode,
@@ -4235,11 +4214,9 @@ void SurfaceFlinger::setPowerMode(const sp<IBinder>& displayToken, int mode) {
} else {
setPowerModeInternal(display, static_cast<hal::PowerMode>(mode));
}
- }));
+ }).wait();
}
-// ---------------------------------------------------------------------------
-
status_t SurfaceFlinger::doDump(int fd, const DumpArgs& args,
bool asProto) NO_THREAD_SAFETY_ANALYSIS {
std::string result;
@@ -4600,20 +4577,21 @@ void SurfaceFlinger::dumpOffscreenLayersProto(LayersProto& layersProto, uint32_t
}
LayersProto SurfaceFlinger::dumpProtoFromMainThread(uint32_t traceFlags) {
- LayersProto layersProto;
- postMessageSync(new LambdaMessage([&] { layersProto = dumpDrawingStateProto(traceFlags); }));
- return layersProto;
+ return schedule([=] { return dumpDrawingStateProto(traceFlags); }).get();
}
void SurfaceFlinger::dumpOffscreenLayers(std::string& result) {
result.append("Offscreen Layers:\n");
- postMessageSync(new LambdaMessage([&]() {
- for (Layer* offscreenLayer : mOffscreenLayers) {
- offscreenLayer->traverse(LayerVector::StateSet::Drawing, [&](Layer* layer) {
- layer->dumpCallingUidPid(result);
- });
- }
- }));
+ result.append(schedule([this] {
+ std::string result;
+ for (Layer* offscreenLayer : mOffscreenLayers) {
+ offscreenLayer->traverse(LayerVector::StateSet::Drawing,
+ [&](Layer* layer) {
+ layer->dumpCallingUidPid(result);
+ });
+ }
+ return result;
+ }).get());
}
void SurfaceFlinger::dumpAllLocked(const DumpArgs& args, std::string& result) const {
@@ -5296,7 +5274,7 @@ void SurfaceFlinger::kernelTimerChanged(bool expired) {
// Update the overlay on the main thread to avoid race conditions with
// mRefreshRateConfigs->getCurrentRefreshRate()
- postMessageAsync(new LambdaMessage([this, expired]() NO_THREAD_SAFETY_ANALYSIS {
+ static_cast<void>(schedule([=]() NO_THREAD_SAFETY_ANALYSIS {
if (mRefreshRateOverlay) {
const auto kernelTimerEnabled = property_get_bool(KERNEL_IDLE_TIMER_PROP, false);
const bool timerExpired = kernelTimerEnabled && expired;
@@ -5680,60 +5658,33 @@ status_t SurfaceFlinger::captureScreenCommon(RenderArea& renderArea,
const sp<GraphicBuffer>& buffer,
bool useIdentityTransform, bool regionSampling,
bool& outCapturedSecureLayers) {
- // This mutex protects syncFd and captureResult for communication of the return values from the
- // main thread back to this Binder thread
- std::mutex captureMutex;
- std::condition_variable captureCondition;
- std::unique_lock<std::mutex> captureLock(captureMutex);
- int syncFd = -1;
- std::optional<status_t> captureResult;
-
const int uid = IPCThreadState::self()->getCallingUid();
const bool forSystem = uid == AID_GRAPHICS || uid == AID_SYSTEM;
- sp<LambdaMessage> message = new LambdaMessage([&] {
- // If there is a refresh pending, bug out early and tell the binder thread to try again
- // after the refresh.
- if (mRefreshPending) {
- ATRACE_NAME("Skipping screenshot for now");
- std::unique_lock<std::mutex> captureLock(captureMutex);
- captureResult = std::make_optional<status_t>(EAGAIN);
- captureCondition.notify_one();
- return;
- }
+ status_t result;
+ int syncFd;
- status_t result = NO_ERROR;
- int fd = -1;
- {
- Mutex::Autolock _l(mStateLock);
- renderArea.render([&] {
- result = captureScreenImplLocked(renderArea, traverseLayers, buffer.get(),
- useIdentityTransform, forSystem, &fd,
- regionSampling, outCapturedSecureLayers);
- });
- }
+ do {
+ std::tie(result, syncFd) =
+ schedule([&] {
+ if (mRefreshPending) {
+ ATRACE_NAME("Skipping screenshot for now");
+ return std::make_pair(EAGAIN, -1);
+ }
- {
- std::unique_lock<std::mutex> captureLock(captureMutex);
- syncFd = fd;
- captureResult = std::make_optional<status_t>(result);
- captureCondition.notify_one();
- }
- });
+ status_t result = NO_ERROR;
+ int fd = -1;
- status_t result = postMessageAsync(message);
- if (result == NO_ERROR) {
- captureCondition.wait(captureLock, [&] { return captureResult; });
- while (*captureResult == EAGAIN) {
- captureResult.reset();
- result = postMessageAsync(message);
- if (result != NO_ERROR) {
- return result;
- }
- captureCondition.wait(captureLock, [&] { return captureResult; });
- }
- result = *captureResult;
- }
+ Mutex::Autolock lock(mStateLock);
+ renderArea.render([&] {
+ result = captureScreenImplLocked(renderArea, traverseLayers, buffer.get(),
+ useIdentityTransform, forSystem, &fd,
+ regionSampling, outCapturedSecureLayers);
+ });
+
+ return std::make_pair(result, fd);
+ }).get();
+ } while (result == EAGAIN);
if (result == NO_ERROR) {
sync_wait(syncFd, -1);
@@ -6008,28 +5959,25 @@ status_t SurfaceFlinger::setDesiredDisplayConfigSpecs(const sp<IBinder>& display
return BAD_VALUE;
}
- status_t result = NAME_NOT_FOUND;
-
- postMessageSync(new LambdaMessage([&]() {
+ auto future = schedule([=]() -> status_t {
const auto display = getDisplayDeviceLocked(displayToken);
if (!display) {
ALOGE("Attempt to set desired display configs for invalid display token %p",
displayToken.get());
+ return NAME_NOT_FOUND;
} else if (display->isVirtual()) {
ALOGW("Attempt to set desired display configs for virtual display");
- result = INVALID_OPERATION;
+ return INVALID_OPERATION;
} else {
- result = setDesiredDisplayConfigSpecsInternal(display,
- scheduler::RefreshRateConfigs::
- Policy{HwcConfigIndexType(
- defaultConfig),
- minRefreshRate,
- maxRefreshRate},
- /*overridePolicy=*/false);
+ using Policy = scheduler::RefreshRateConfigs::Policy;
+ const Policy policy{HwcConfigIndexType(defaultConfig), minRefreshRate, maxRefreshRate};
+ constexpr bool kOverridePolicy = false;
+
+ return setDesiredDisplayConfigSpecsInternal(display, policy, kOverridePolicy);
}
- }));
+ });
- return result;
+ return future.get();
}
status_t SurfaceFlinger::getDesiredDisplayConfigSpecs(const sp<IBinder>& displayToken,
@@ -6158,7 +6106,7 @@ status_t SurfaceFlinger::setFrameRate(const sp<IGraphicBufferProducer>& surface,
return BAD_VALUE;
}
- postMessageAsync(new LambdaMessage([=]() NO_THREAD_SAFETY_ANALYSIS {
+ static_cast<void>(schedule([=]() NO_THREAD_SAFETY_ANALYSIS {
Mutex::Autolock lock(mStateLock);
if (authenticateSurfaceTextureLocked(surface)) {
sp<Layer> layer = (static_cast<MonitoredProducer*>(surface.get()))->getLayer();
@@ -6181,8 +6129,11 @@ status_t SurfaceFlinger::acquireFrameRateFlexibilityToken(sp<IBinder>* outToken)
if (!outToken) {
return BAD_VALUE;
}
- status_t result = NO_ERROR;
- postMessageSync(new LambdaMessage([&]() {
+
+ auto future = schedule([this] {
+ status_t result = NO_ERROR;
+ sp<IBinder> token;
+
if (mFrameRateFlexibilityTokenCount == 0) {
// |mStateLock| not needed as we are on the main thread
const auto display = getDefaultDisplayDeviceLocked();
@@ -6196,8 +6147,8 @@ status_t SurfaceFlinger::acquireFrameRateFlexibilityToken(sp<IBinder>* outToken)
overridePolicy.defaultConfig =
mRefreshRateConfigs->getDisplayManagerPolicy().defaultConfig;
overridePolicy.allowGroupSwitching = true;
- result = setDesiredDisplayConfigSpecsInternal(display, overridePolicy,
- /*overridePolicy=*/true);
+ constexpr bool kOverridePolicy = true;
+ result = setDesiredDisplayConfigSpecsInternal(display, overridePolicy, kOverridePolicy);
}
if (result == NO_ERROR) {
@@ -6214,17 +6165,22 @@ status_t SurfaceFlinger::acquireFrameRateFlexibilityToken(sp<IBinder>* outToken)
// 2. The frame rate flexibility token is acquired/released only by CTS tests, so even
// if condition 1 were changed, the problem would only show up when running CTS tests,
// not on end user devices, so we could spot it and fix it without serious impact.
- *outToken = new FrameRateFlexibilityToken(
+ token = new FrameRateFlexibilityToken(
[this]() { onFrameRateFlexibilityTokenReleased(); });
ALOGD("Frame rate flexibility token acquired. count=%d",
mFrameRateFlexibilityTokenCount);
}
- }));
+
+ return std::make_pair(result, token);
+ });
+
+ status_t result;
+ std::tie(result, *outToken) = future.get();
return result;
}
void SurfaceFlinger::onFrameRateFlexibilityTokenReleased() {
- postMessageAsync(new LambdaMessage([&]() {
+ static_cast<void>(schedule([this] {
LOG_ALWAYS_FATAL_IF(mFrameRateFlexibilityTokenCount == 0,
"Failed tracking frame rate flexibility tokens");
mFrameRateFlexibilityTokenCount--;
@@ -6232,8 +6188,8 @@ void SurfaceFlinger::onFrameRateFlexibilityTokenReleased() {
if (mFrameRateFlexibilityTokenCount == 0) {
// |mStateLock| not needed as we are on the main thread
const auto display = getDefaultDisplayDeviceLocked();
- status_t result =
- setDesiredDisplayConfigSpecsInternal(display, {}, /*overridePolicy=*/true);
+ constexpr bool kOverridePolicy = true;
+ status_t result = setDesiredDisplayConfigSpecsInternal(display, {}, kOverridePolicy);
LOG_ALWAYS_FATAL_IF(result < 0, "Failed releasing frame rate flexibility token");
}
}));
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index eb269b4d40..b65e4f6899 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -68,6 +68,7 @@
#include <atomic>
#include <cstdint>
#include <functional>
+#include <future>
#include <map>
#include <memory>
#include <mutex>
@@ -276,12 +277,9 @@ public:
// starts SurfaceFlinger main loop in the current thread
void run() ANDROID_API;
- // post an asynchronous message to the main thread
- status_t postMessageAsync(const sp<MessageBase>& msg, nsecs_t reltime = 0, uint32_t flags = 0);
-
- // post a synchronous message to the main thread
- status_t postMessageSync(const sp<MessageBase>& msg, nsecs_t reltime = 0, uint32_t flags = 0)
- EXCLUDES(mStateLock);
+ // Schedule an asynchronous or synchronous task on the main thread.
+ template <typename F, typename T = std::invoke_result_t<F>>
+ [[nodiscard]] std::future<T> schedule(F&&);
// force full composition on all displays
void repaintEverything();
@@ -542,7 +540,6 @@ private:
/* ------------------------------------------------------------------------
* Message handling
*/
- void waitForEvent();
// Can only be called from the main thread or with mStateLock held
void signalTransaction();
// Can only be called from the main thread or with mStateLock held
@@ -999,6 +996,8 @@ private:
std::set<wp<IBinder>> mGraphicBufferProducerList;
size_t mMaxGraphicBufferProducerListSize = ISurfaceComposer::MAX_LAYERS;
+ void removeGraphicBufferProducerAsync(const wp<IBinder>&);
+
// protected by mStateLock (but we could use another lock)
bool mLayersRemoved = false;
bool mLayersAdded = false;
diff --git a/services/surfaceflinger/tests/unittests/CompositionTest.cpp b/services/surfaceflinger/tests/unittests/CompositionTest.cpp
index e0dd0d9f07..8713b2bd49 100644
--- a/services/surfaceflinger/tests/unittests/CompositionTest.cpp
+++ b/services/surfaceflinger/tests/unittests/CompositionTest.cpp
@@ -542,7 +542,7 @@ struct BaseLayerProperties {
EXPECT_CALL(*test->mMessageQueue, invalidate()).Times(1);
enqueueBuffer(test, layer);
- Mock::VerifyAndClear(test->mMessageQueue);
+ Mock::VerifyAndClearExpectations(test->mMessageQueue);
EXPECT_CALL(*test->mRenderEngine, useNativeFenceSync()).WillRepeatedly(Return(true));
bool ignoredRecomputeVisibleRegions;
@@ -834,7 +834,7 @@ template <typename LayerProperties>
struct BaseLayerVariant {
template <typename L, typename F>
static sp<L> createLayerWithFactory(CompositionTest* test, F factory) {
- EXPECT_CALL(*test->mMessageQueue, postMessage(_, 0)).Times(0);
+ EXPECT_CALL(*test->mMessageQueue, postMessage(_)).Times(0);
sp<L> layer = factory();
@@ -843,7 +843,7 @@ struct BaseLayerVariant {
Mock::VerifyAndClear(test->mComposer);
Mock::VerifyAndClear(test->mRenderEngine);
- Mock::VerifyAndClear(test->mMessageQueue);
+ Mock::VerifyAndClearExpectations(test->mMessageQueue);
auto& layerDrawingState = test->mFlinger.mutableLayerDrawingState(layer);
layerDrawingState.layerStack = DEFAULT_LAYER_STACK;
@@ -944,7 +944,7 @@ struct BufferLayerVariant : public BaseLayerVariant<LayerProperties> {
}
static void cleanupInjectedLayers(CompositionTest* test) {
- EXPECT_CALL(*test->mMessageQueue, postMessage(_, 0)).Times(1);
+ EXPECT_CALL(*test->mMessageQueue, postMessage(_)).Times(1);
Base::cleanupInjectedLayers(test);
}
diff --git a/services/surfaceflinger/tests/unittests/mock/MockMessageQueue.cpp b/services/surfaceflinger/tests/unittests/mock/MockMessageQueue.cpp
index 97a13e4d3e..5fb06fd65f 100644
--- a/services/surfaceflinger/tests/unittests/mock/MockMessageQueue.cpp
+++ b/services/surfaceflinger/tests/unittests/mock/MockMessageQueue.cpp
@@ -16,12 +16,15 @@
#include "mock/MockMessageQueue.h"
-namespace android {
-namespace mock {
+namespace android::mock {
+
+MessageQueue::MessageQueue() {
+ ON_CALL(*this, postMessage).WillByDefault([](sp<MessageHandler>&& handler) {
+ // Execute task to prevent broken promise exception on destruction.
+ handler->handleMessage(Message());
+ });
+}
-// Explicit default instantiation is recommended.
-MessageQueue::MessageQueue() = default;
MessageQueue::~MessageQueue() = default;
-} // namespace mock
-} // namespace android \ No newline at end of file
+} // namespace android::mock
diff --git a/services/surfaceflinger/tests/unittests/mock/MockMessageQueue.h b/services/surfaceflinger/tests/unittests/mock/MockMessageQueue.h
index e781c0a10d..a82b583d6a 100644
--- a/services/surfaceflinger/tests/unittests/mock/MockMessageQueue.h
+++ b/services/surfaceflinger/tests/unittests/mock/MockMessageQueue.h
@@ -21,8 +21,7 @@
#include "Scheduler/EventThread.h"
#include "Scheduler/MessageQueue.h"
-namespace android {
-namespace mock {
+namespace android::mock {
class MessageQueue : public android::MessageQueue {
public:
@@ -32,10 +31,9 @@ public:
MOCK_METHOD1(init, void(const sp<SurfaceFlinger>&));
MOCK_METHOD1(setEventConnection, void(const sp<EventThreadConnection>& connection));
MOCK_METHOD0(waitMessage, void());
- MOCK_METHOD2(postMessage, status_t(const sp<MessageBase>&, nsecs_t));
+ MOCK_METHOD1(postMessage, void(sp<MessageHandler>&&));
MOCK_METHOD0(invalidate, void());
MOCK_METHOD0(refresh, void());
};
-} // namespace mock
-} // namespace android
+} // namespace android::mock
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-12-28 18:52:16 +0000