Merge "Add property for mute events from volume shaper"
diff --git a/cmds/atrace/atrace.rc b/cmds/atrace/atrace.rc
index 891b1c6..2e0c95a 100644
--- a/cmds/atrace/atrace.rc
+++ b/cmds/atrace/atrace.rc
@@ -300,6 +300,12 @@
     chmod 0666 /sys/kernel/debug/tracing/events/kmem/rss_stat/trigger
     chmod 0666 /sys/kernel/tracing/events/kmem/rss_stat/trigger
 
+on late-init && property:ro.boot.fastboot.boottrace=enabled
+    setprop debug.atrace.tags.enableflags 802922
+    setprop persist.traced.enable 0
+    write /sys/kernel/debug/tracing/tracing_on 1
+    write /sys/kernel/tracing/tracing_on 1
+
 # Only create the tracing instance if persist.mm_events.enabled
 # Attempting to remove the tracing instance after it has been created
 # will likely fail with EBUSY as it would be in use by traced_probes.
@@ -395,3 +401,10 @@
 service boottrace /system/bin/atrace --async_start -f /data/misc/boottrace/categories
     disabled
     oneshot
+
+on property:sys.boot_completed=1 && property:ro.boot.fastboot.boottrace=enabled
+    setprop debug.atrace.tags.enableflags 0
+    setprop persist.traced.enable 1
+    write /sys/kernel/debug/tracing/tracing_on 0
+    write /sys/kernel/tracing/tracing_on 0
+
diff --git a/include/input/KeyCharacterMap.h b/include/input/KeyCharacterMap.h
index f6f8939..585ea3c 100644
--- a/include/input/KeyCharacterMap.h
+++ b/include/input/KeyCharacterMap.h
@@ -240,8 +240,7 @@
     KeyCharacterMap(const std::string& filename);
 
     bool getKey(int32_t keyCode, const Key** outKey) const;
-    bool getKeyBehavior(int32_t keyCode, int32_t metaState,
-            const Key** outKey, const Behavior** outBehavior) const;
+    const Behavior* getKeyBehavior(int32_t keyCode, int32_t metaState) const;
     static bool matchesMetaState(int32_t eventMetaState, int32_t behaviorMetaState);
 
     bool findKey(char16_t ch, int32_t* outKeyCode, int32_t* outMetaState) const;
diff --git a/libs/binder/RpcSession.cpp b/libs/binder/RpcSession.cpp
index e6dbd79..d347262 100644
--- a/libs/binder/RpcSession.cpp
+++ b/libs/binder/RpcSession.cpp
@@ -36,6 +36,7 @@
 #include <utils/Compat.h>
 #include <utils/String8.h>
 
+#include "BuildFlags.h"
 #include "FdTrigger.h"
 #include "OS.h"
 #include "RpcSocketAddress.h"
@@ -78,10 +79,8 @@
 
 void RpcSession::setMaxIncomingThreads(size_t threads) {
     RpcMutexLockGuard _l(mMutex);
-    LOG_ALWAYS_FATAL_IF(!mConnections.mOutgoing.empty() || !mConnections.mIncoming.empty(),
-                        "Must set max incoming threads before setting up connections, but has %zu "
-                        "client(s) and %zu server(s)",
-                        mConnections.mOutgoing.size(), mConnections.mIncoming.size());
+    LOG_ALWAYS_FATAL_IF(mStartedSetup,
+                        "Must set max incoming threads before setting up connections");
     mMaxIncomingThreads = threads;
 }
 
@@ -92,10 +91,8 @@
 
 void RpcSession::setMaxOutgoingThreads(size_t threads) {
     RpcMutexLockGuard _l(mMutex);
-    LOG_ALWAYS_FATAL_IF(!mConnections.mOutgoing.empty() || !mConnections.mIncoming.empty(),
-                        "Must set max outgoing threads before setting up connections, but has %zu "
-                        "client(s) and %zu server(s)",
-                        mConnections.mOutgoing.size(), mConnections.mIncoming.size());
+    LOG_ALWAYS_FATAL_IF(mStartedSetup,
+                        "Must set max outgoing threads before setting up connections");
     mMaxOutgoingThreads = threads;
 }
 
@@ -104,7 +101,7 @@
     return mMaxOutgoingThreads;
 }
 
-bool RpcSession::setProtocolVersion(uint32_t version) {
+bool RpcSession::setProtocolVersionInternal(uint32_t version, bool checkStarted) {
     if (version >= RPC_WIRE_PROTOCOL_VERSION_NEXT &&
         version != RPC_WIRE_PROTOCOL_VERSION_EXPERIMENTAL) {
         ALOGE("Cannot start RPC session with version %u which is unknown (current protocol version "
@@ -114,6 +111,8 @@
     }
 
     RpcMutexLockGuard _l(mMutex);
+    LOG_ALWAYS_FATAL_IF(checkStarted && mStartedSetup,
+                        "Must set protocol version before setting up connections");
     if (mProtocolVersion && version > *mProtocolVersion) {
         ALOGE("Cannot upgrade explicitly capped protocol version %u to newer version %u",
               *mProtocolVersion, version);
@@ -124,12 +123,19 @@
     return true;
 }
 
+bool RpcSession::setProtocolVersion(uint32_t version) {
+    return setProtocolVersionInternal(version, true);
+}
+
 std::optional<uint32_t> RpcSession::getProtocolVersion() {
     RpcMutexLockGuard _l(mMutex);
     return mProtocolVersion;
 }
 
 void RpcSession::setFileDescriptorTransportMode(FileDescriptorTransportMode mode) {
+    RpcMutexLockGuard _l(mMutex);
+    LOG_ALWAYS_FATAL_IF(mStartedSetup,
+                        "Must set file descriptor transport mode before setting up connections");
     mFileDescriptorTransportMode = mode;
 }
 
@@ -445,9 +451,16 @@
                                                               bool incoming)>& connectAndInit) {
     {
         RpcMutexLockGuard _l(mMutex);
-        LOG_ALWAYS_FATAL_IF(mConnections.mOutgoing.size() != 0,
-                            "Must only setup session once, but already has %zu clients",
-                            mConnections.mOutgoing.size());
+        LOG_ALWAYS_FATAL_IF(mStartedSetup, "Must only setup session once");
+        mStartedSetup = true;
+
+        if constexpr (!kEnableRpcThreads) {
+            LOG_ALWAYS_FATAL_IF(mMaxIncomingThreads > 0,
+                                "Incoming threads are not supported on single-threaded libbinder");
+            // mMaxIncomingThreads should not change from here to its use below,
+            // since we set mStartedSetup==true and setMaxIncomingThreads checks
+            // for that
+        }
     }
 
     if (auto status = initShutdownTrigger(); status != OK) return status;
@@ -488,7 +501,7 @@
                                                     sp<RpcSession>::fromExisting(this), &version);
             status != OK)
             return status;
-        if (!setProtocolVersion(version)) return BAD_VALUE;
+        if (!setProtocolVersionInternal(version, false)) return BAD_VALUE;
     }
 
     // TODO(b/189955605): we should add additional sessions dynamically
@@ -506,11 +519,7 @@
         return status;
     }
 
-#ifdef BINDER_RPC_SINGLE_THREADED
-    constexpr size_t outgoingThreads = 1;
-#else  // BINDER_RPC_SINGLE_THREADED
     size_t outgoingThreads = std::min(numThreadsAvailable, mMaxOutgoingThreads);
-#endif // BINDER_RPC_SINGLE_THREADED
     ALOGI_IF(outgoingThreads != numThreadsAvailable,
              "Server hints client to start %zu outgoing threads, but client will only start %zu "
              "because it is preconfigured to start at most %zu outgoing threads.",
diff --git a/libs/binder/include/binder/RpcSession.h b/libs/binder/include/binder/RpcSession.h
index 9d94e00..428e272 100644
--- a/libs/binder/include/binder/RpcSession.h
+++ b/libs/binder/include/binder/RpcSession.h
@@ -207,6 +207,10 @@
     friend RpcState;
     explicit RpcSession(std::unique_ptr<RpcTransportCtx> ctx);
 
+    // internal version of setProtocolVersion that
+    // optionally skips the mStartedSetup check
+    [[nodiscard]] bool setProtocolVersionInternal(uint32_t version, bool checkStarted);
+
     // for 'target', see RpcState::sendDecStrongToTarget
     [[nodiscard]] status_t sendDecStrongToTarget(uint64_t address, size_t target);
 
@@ -344,6 +348,7 @@
 
     RpcMutex mMutex; // for all below
 
+    bool mStartedSetup = false;
     size_t mMaxIncomingThreads = 0;
     size_t mMaxOutgoingThreads = kDefaultMaxOutgoingThreads;
     std::optional<uint32_t> mProtocolVersion;
diff --git a/libs/binder/rust/src/error.rs b/libs/binder/rust/src/error.rs
index 2598ebc..f6b09ed 100644
--- a/libs/binder/rust/src/error.rs
+++ b/libs/binder/rust/src/error.rs
@@ -18,7 +18,7 @@
 use crate::sys;
 
 use std::error;
-use std::ffi::CStr;
+use std::ffi::{CStr, CString};
 use std::fmt::{Debug, Display, Formatter, Result as FmtResult};
 use std::result;
 
@@ -104,6 +104,10 @@
 // A thread-local `AStatus` would not be valid.
 unsafe impl Send for Status {}
 
+fn to_cstring<T: AsRef<str>>(message: T) -> Option<CString> {
+    CString::new(message.as_ref()).ok()
+}
+
 impl Status {
     /// Create a status object representing a successful transaction.
     pub fn ok() -> Self {
@@ -146,6 +150,11 @@
         Self(ptr)
     }
 
+    /// Creates a status object from a service specific error.
+    pub fn new_service_specific_error_str<T: AsRef<str>>(err: i32, message: Option<T>) -> Status {
+        Self::new_service_specific_error(err, message.and_then(to_cstring).as_deref())
+    }
+
     /// Create a status object from an exception code
     pub fn new_exception(exception: ExceptionCode, message: Option<&CStr>) -> Status {
         if let Some(message) = message {
@@ -158,6 +167,14 @@
         }
     }
 
+    /// Creates a status object from an exception code and message.
+    pub fn new_exception_str<T: AsRef<str>>(
+        exception: ExceptionCode,
+        message: Option<T>,
+    ) -> Status {
+        Self::new_exception(exception, message.and_then(to_cstring).as_deref())
+    }
+
     /// Create a status object from a raw `AStatus` pointer.
     ///
     /// # Safety
@@ -371,3 +388,41 @@
         self.0
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn make_service_specific_error() {
+        let status = Status::new_service_specific_error_str(-42, Some("message"));
+
+        assert!(!status.is_ok());
+        assert_eq!(status.exception_code(), ExceptionCode::SERVICE_SPECIFIC);
+        assert_eq!(status.service_specific_error(), -42);
+        assert_eq!(
+            status.get_description(),
+            "Status(-8, EX_SERVICE_SPECIFIC): '-42: message'".to_string()
+        );
+    }
+
+    #[test]
+    fn make_exception() {
+        let status = Status::new_exception_str(ExceptionCode::ILLEGAL_STATE, Some("message"));
+
+        assert!(!status.is_ok());
+        assert_eq!(status.exception_code(), ExceptionCode::ILLEGAL_STATE);
+        assert_eq!(status.service_specific_error(), 0);
+        assert_eq!(status.get_description(), "Status(-5, EX_ILLEGAL_STATE): 'message'".to_string());
+    }
+
+    #[test]
+    fn make_exception_null() {
+        let status = Status::new_exception_str(ExceptionCode::ILLEGAL_STATE, Some("one\0two"));
+
+        assert!(!status.is_ok());
+        assert_eq!(status.exception_code(), ExceptionCode::ILLEGAL_STATE);
+        assert_eq!(status.service_specific_error(), 0);
+        assert_eq!(status.get_description(), "Status(-5, EX_ILLEGAL_STATE): ''".to_string());
+    }
+}
diff --git a/libs/cputimeinstate/fuzz/cputimeinstate_fuzzer/Android.bp b/libs/cputimeinstate/fuzz/cputimeinstate_fuzzer/Android.bp
index 416e34e..2399acd 100644
--- a/libs/cputimeinstate/fuzz/cputimeinstate_fuzzer/Android.bp
+++ b/libs/cputimeinstate/fuzz/cputimeinstate_fuzzer/Android.bp
@@ -16,6 +16,15 @@
  *
  *****************************************************************************
  */
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "frameworks_native_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["frameworks_native_license"],
+}
+
 cc_fuzz {
     name: "cputimeinstate_fuzzer",
     srcs: [
diff --git a/libs/input/KeyCharacterMap.cpp b/libs/input/KeyCharacterMap.cpp
index 2039fa6..5cb844e 100644
--- a/libs/input/KeyCharacterMap.cpp
+++ b/libs/input/KeyCharacterMap.cpp
@@ -304,9 +304,8 @@
 
 char16_t KeyCharacterMap::getCharacter(int32_t keyCode, int32_t metaState) const {
     char16_t result = 0;
-    const Key* key;
-    const Behavior* behavior;
-    if (getKeyBehavior(keyCode, metaState, &key, &behavior)) {
+    const Behavior* behavior = getKeyBehavior(keyCode, metaState);
+    if (behavior != nullptr) {
         result = behavior->character;
     }
 #if DEBUG_MAPPING
@@ -321,9 +320,8 @@
     outFallbackAction->metaState = 0;
 
     bool result = false;
-    const Key* key;
-    const Behavior* behavior;
-    if (getKeyBehavior(keyCode, metaState, &key, &behavior)) {
+    const Behavior* behavior = getKeyBehavior(keyCode, metaState);
+    if (behavior != nullptr) {
         if (behavior->fallbackKeyCode) {
             outFallbackAction->keyCode = behavior->fallbackKeyCode;
             outFallbackAction->metaState = metaState & ~behavior->metaState;
@@ -438,9 +436,8 @@
     *outKeyCode = keyCode;
     *outMetaState = metaState;
 
-    const Key* key;
-    const Behavior* behavior;
-    if (getKeyBehavior(keyCode, metaState, &key, &behavior)) {
+    const Behavior* behavior = getKeyBehavior(keyCode, metaState);
+    if (behavior != nullptr) {
         if (behavior->replacementKeyCode) {
             *outKeyCode = behavior->replacementKeyCode;
             int32_t newMetaState = metaState & ~behavior->metaState;
@@ -484,21 +481,19 @@
     return false;
 }
 
-bool KeyCharacterMap::getKeyBehavior(int32_t keyCode, int32_t metaState,
-        const Key** outKey, const Behavior** outBehavior) const {
+const KeyCharacterMap::Behavior* KeyCharacterMap::getKeyBehavior(int32_t keyCode,
+                                                                 int32_t metaState) const {
     const Key* key;
     if (getKey(keyCode, &key)) {
         const Behavior* behavior = key->firstBehavior;
         while (behavior) {
             if (matchesMetaState(metaState, behavior->metaState)) {
-                *outKey = key;
-                *outBehavior = behavior;
-                return true;
+                return behavior;
             }
             behavior = behavior->next;
         }
     }
-    return false;
+    return nullptr;
 }
 
 bool KeyCharacterMap::matchesMetaState(int32_t eventMetaState, int32_t behaviorMetaState) {
diff --git a/libs/sensor/fuzz/bittube_fuzzer/Android.bp b/libs/sensor/fuzz/bittube_fuzzer/Android.bp
index 5d8f401..7af22cc 100644
--- a/libs/sensor/fuzz/bittube_fuzzer/Android.bp
+++ b/libs/sensor/fuzz/bittube_fuzzer/Android.bp
@@ -16,6 +16,15 @@
  *
  *****************************************************************************
  */
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "frameworks_native_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["frameworks_native_license"],
+}
+
 cc_fuzz {
     name: "bittube_fuzzer",
     srcs: [
diff --git a/services/inputflinger/Android.bp b/services/inputflinger/Android.bp
index 542efae..29a0e4f 100644
--- a/services/inputflinger/Android.bp
+++ b/services/inputflinger/Android.bp
@@ -190,6 +190,7 @@
         "libinputservice_test",
         "Bug-115739809",
         "StructLayout_test",
+        "inputflinger_latencytracker_fuzzer",
 
         // Java/Kotlin targets
         "CtsWindowManagerDeviceTestCases",
diff --git a/services/inputflinger/reader/EventHub.cpp b/services/inputflinger/reader/EventHub.cpp
index a17d2c0..bfa44ac 100644
--- a/services/inputflinger/reader/EventHub.cpp
+++ b/services/inputflinger/reader/EventHub.cpp
@@ -1310,7 +1310,8 @@
     if (!identifier.uniqueId.empty()) {
         rawDescriptor += "uniqueId:";
         rawDescriptor += identifier.uniqueId;
-    } else if (identifier.nonce != 0) {
+    }
+    if (identifier.nonce != 0) {
         rawDescriptor += StringPrintf("nonce:%04x", identifier.nonce);
     }
 
@@ -1338,16 +1339,20 @@
     // of Android. In practice we sometimes get devices that cannot be uniquely
     // identified. In this case we enforce uniqueness between connected devices.
     // Ideally, we also want the descriptor to be short and relatively opaque.
+    // Note that we explicitly do not use the path or location for external devices
+    // as their path or location will change as they are plugged/unplugged or moved
+    // to different ports. We do fallback to using name and location in the case of
+    // internal devices which are detected by the vendor and product being 0 in
+    // generateDescriptor. If two identical descriptors are detected we will fallback
+    // to using a 'nonce' and incrementing it until the new descriptor no longer has
+    // a match with any existing descriptors.
 
     identifier.nonce = 0;
     std::string rawDescriptor = generateDescriptor(identifier);
-    if (identifier.uniqueId.empty()) {
-        // If it didn't have a unique id check for conflicts and enforce
-        // uniqueness if necessary.
-        while (getDeviceByDescriptorLocked(identifier.descriptor) != nullptr) {
-            identifier.nonce++;
-            rawDescriptor = generateDescriptor(identifier);
-        }
+    // Enforce that the generated descriptor is unique.
+    while (hasDeviceWithDescriptorLocked(identifier.descriptor)) {
+        identifier.nonce++;
+        rawDescriptor = generateDescriptor(identifier);
     }
     ALOGV("Created descriptor: raw=%s, cooked=%s", rawDescriptor.c_str(),
           identifier.descriptor.c_str());
@@ -1422,13 +1427,22 @@
     return vibrators;
 }
 
-EventHub::Device* EventHub::getDeviceByDescriptorLocked(const std::string& descriptor) const {
-    for (const auto& [id, device] : mDevices) {
+/**
+ * Checks both mDevices and mOpeningDevices for a device with the descriptor passed.
+ */
+bool EventHub::hasDeviceWithDescriptorLocked(const std::string& descriptor) const {
+    for (const auto& device : mOpeningDevices) {
         if (descriptor == device->identifier.descriptor) {
-            return device.get();
+            return true;
         }
     }
-    return nullptr;
+
+    for (const auto& [id, device] : mDevices) {
+        if (descriptor == device->identifier.descriptor) {
+            return true;
+        }
+    }
+    return false;
 }
 
 EventHub::Device* EventHub::getDeviceLocked(int32_t deviceId) const {
diff --git a/services/inputflinger/reader/InputReader.cpp b/services/inputflinger/reader/InputReader.cpp
index 79901f0..11a2dbe 100644
--- a/services/inputflinger/reader/InputReader.cpp
+++ b/services/inputflinger/reader/InputReader.cpp
@@ -38,6 +38,26 @@
 
 namespace android {
 
+/**
+ * Determines if the identifiers passed are a sub-devices. Sub-devices are physical devices
+ * that expose multiple input device paths such a keyboard that also has a touchpad input.
+ * These are separate devices with unique descriptors in EventHub, but InputReader should
+ * create a single InputDevice for them.
+ * Sub-devices are detected by the following criteria:
+ * 1. The vendor, product, bus, version, and unique id match
+ * 2. The location matches. The location is used to distinguish a single device with multiple
+ *    inputs versus the same device plugged into multiple ports.
+ */
+
+static bool isSubDevice(const InputDeviceIdentifier& identifier1,
+                        const InputDeviceIdentifier& identifier2) {
+    return (identifier1.vendor == identifier2.vendor &&
+            identifier1.product == identifier2.product && identifier1.bus == identifier2.bus &&
+            identifier1.version == identifier2.version &&
+            identifier1.uniqueId == identifier2.uniqueId &&
+            identifier1.location == identifier2.location);
+}
+
 // --- InputReader ---
 
 InputReader::InputReader(std::shared_ptr<EventHubInterface> eventHub,
@@ -270,8 +290,9 @@
 std::shared_ptr<InputDevice> InputReader::createDeviceLocked(
         int32_t eventHubId, const InputDeviceIdentifier& identifier) {
     auto deviceIt = std::find_if(mDevices.begin(), mDevices.end(), [identifier](auto& devicePair) {
-        return devicePair.second->getDescriptor().size() && identifier.descriptor.size() &&
-                devicePair.second->getDescriptor() == identifier.descriptor;
+        const InputDeviceIdentifier identifier2 =
+                devicePair.second->getDeviceInfo().getIdentifier();
+        return isSubDevice(identifier, identifier2);
     });
 
     std::shared_ptr<InputDevice> device;
diff --git a/services/inputflinger/reader/include/EventHub.h b/services/inputflinger/reader/include/EventHub.h
index 79188aa..4733ecb 100644
--- a/services/inputflinger/reader/include/EventHub.h
+++ b/services/inputflinger/reader/include/EventHub.h
@@ -652,7 +652,6 @@
     base::Result<void> readNotifyLocked() REQUIRES(mLock);
     void handleNotifyEventLocked(const inotify_event&) REQUIRES(mLock);
 
-    Device* getDeviceByDescriptorLocked(const std::string& descriptor) const REQUIRES(mLock);
     Device* getDeviceLocked(int32_t deviceId) const REQUIRES(mLock);
     Device* getDeviceByPathLocked(const std::string& devicePath) const REQUIRES(mLock);
     /**
@@ -662,6 +661,9 @@
     Device* getDeviceByFdLocked(int fd) const REQUIRES(mLock);
 
     int32_t getNextControllerNumberLocked(const std::string& name) REQUIRES(mLock);
+
+    bool hasDeviceWithDescriptorLocked(const std::string& descriptor) const REQUIRES(mLock);
+
     void releaseControllerNumberLocked(int32_t num) REQUIRES(mLock);
     void reportDeviceAddedForStatisticsLocked(const InputDeviceIdentifier& identifier,
                                               ftl::Flags<InputDeviceClass> classes) REQUIRES(mLock);
diff --git a/services/inputflinger/tests/EventHub_test.cpp b/services/inputflinger/tests/EventHub_test.cpp
index ef68a84..6ef6e44 100644
--- a/services/inputflinger/tests/EventHub_test.cpp
+++ b/services/inputflinger/tests/EventHub_test.cpp
@@ -180,6 +180,20 @@
 }
 
 /**
+ * Ensure that two identical devices get assigned unique descriptors from EventHub.
+ */
+TEST_F(EventHubTest, DevicesWithMatchingUniqueIdsAreUnique) {
+    std::unique_ptr<UinputHomeKey> keyboard2 = createUinputDevice<UinputHomeKey>();
+    int32_t deviceId2;
+    ASSERT_NO_FATAL_FAILURE(deviceId2 = waitForDeviceCreation());
+
+    ASSERT_NE(mEventHub->getDeviceIdentifier(mDeviceId).descriptor,
+              mEventHub->getDeviceIdentifier(deviceId2).descriptor);
+    keyboard2.reset();
+    waitForDeviceClose(deviceId2);
+}
+
+/**
  * Ensure that input_events are generated with monotonic clock.
  * That means input_event should receive a timestamp that is in the future of the time
  * before the event was sent.
diff --git a/services/surfaceflinger/DisplayDevice.cpp b/services/surfaceflinger/DisplayDevice.cpp
index 8680900..bff301e 100644
--- a/services/surfaceflinger/DisplayDevice.cpp
+++ b/services/surfaceflinger/DisplayDevice.cpp
@@ -136,10 +136,6 @@
     mDeviceProductInfo = std::move(info);
 }
 
-uint32_t DisplayDevice::getPageFlipCount() const {
-    return mCompositionDisplay->getRenderSurface()->getPageFlipCount();
-}
-
 auto DisplayDevice::getInputInfo() const -> InputInfo {
     gui::DisplayInfo info;
     info.displayId = getLayerStack().id;
diff --git a/services/surfaceflinger/DisplayDevice.h b/services/surfaceflinger/DisplayDevice.h
index 2161436..10fc095 100644
--- a/services/surfaceflinger/DisplayDevice.h
+++ b/services/surfaceflinger/DisplayDevice.h
@@ -259,7 +259,6 @@
     /* ------------------------------------------------------------------------
      * Debugging
      */
-    uint32_t getPageFlipCount() const;
     std::string getDebugName() const;
     void dump(std::string& result) const;
 
diff --git a/services/surfaceflinger/Scheduler/include/scheduler/Time.h b/services/surfaceflinger/Scheduler/include/scheduler/Time.h
index 2b3ad2d..487709b 100644
--- a/services/surfaceflinger/Scheduler/include/scheduler/Time.h
+++ b/services/surfaceflinger/Scheduler/include/scheduler/Time.h
@@ -32,6 +32,7 @@
 struct Duration;
 
 struct TimePoint : scheduler::SchedulerClock::time_point {
+    constexpr TimePoint() = default;
     explicit constexpr TimePoint(const Duration&);
 
     // Implicit conversion from std::chrono counterpart.
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 1fcbdfa..8e19c35 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -2247,7 +2247,6 @@
         scheduleComposite(FrameHint::kNone);
     }
 
-    postFrame();
     postComposition();
 
     const bool prevFrameHadClientComposition = mHadClientComposition;
@@ -2363,7 +2362,7 @@
 
 void SurfaceFlinger::postComposition() {
     ATRACE_CALL();
-    ALOGV("postComposition");
+    ALOGV(__func__);
 
     const auto* display = FTL_FAKE_GUARD(mStateLock, getDefaultDisplayDeviceLocked()).get();
 
@@ -2378,18 +2377,19 @@
     }
 
     mPreviousPresentFences[1] = mPreviousPresentFences[0];
-    mPreviousPresentFences[0].fence =
-            display ? getHwComposer().getPresentFence(display->getPhysicalId()) : Fence::NO_FENCE;
-    mPreviousPresentFences[0].fenceTime =
-            std::make_shared<FenceTime>(mPreviousPresentFences[0].fence);
 
-    nsecs_t now = systemTime();
+    auto presentFence =
+            display ? getHwComposer().getPresentFence(display->getPhysicalId()) : Fence::NO_FENCE;
+
+    auto presentFenceTime = std::make_shared<FenceTime>(presentFence);
+    mPreviousPresentFences[0] = {presentFence, presentFenceTime};
+
+    const TimePoint presentTime = scheduler::SchedulerClock::now();
 
     // Set presentation information before calling Layer::releasePendingBuffer, such that jank
     // information from previous' frame classification is already available when sending jank info
     // to clients, so they get jank classification as early as possible.
-    mFrameTimeline->setSfPresent(/* sfPresentTime */ now, mPreviousPresentFences[0].fenceTime,
-                                 glCompositionDoneFenceTime);
+    mFrameTimeline->setSfPresent(presentTime.ns(), presentFenceTime, glCompositionDoneFenceTime);
 
     // We use the CompositionEngine::getLastFrameRefreshTimestamp() which might
     // be sampled a little later than when we started doing work for this frame,
@@ -2397,11 +2397,10 @@
     const TimePoint compositeTime =
             TimePoint::fromNs(mCompositionEngine->getLastFrameRefreshTimestamp());
     const Duration presentLatency =
-            mPresentLatencyTracker.trackPendingFrame(compositeTime,
-                                                     mPreviousPresentFences[0].fenceTime);
+            mPresentLatencyTracker.trackPendingFrame(compositeTime, presentFenceTime);
 
     const auto& schedule = mScheduler->getVsyncSchedule();
-    const TimePoint vsyncDeadline = schedule.vsyncDeadlineAfter(TimePoint::fromNs(now));
+    const TimePoint vsyncDeadline = schedule.vsyncDeadlineAfter(presentTime);
     const Period vsyncPeriod = schedule.period();
     const nsecs_t vsyncPhase = mVsyncConfiguration->getCurrentConfigs().late.sfOffset;
 
@@ -2409,9 +2408,9 @@
                                             presentLatency.ns());
 
     for (const auto& layer: mLayersWithQueuedFrames) {
-        layer->onPostComposition(display, glCompositionDoneFenceTime,
-                                 mPreviousPresentFences[0].fenceTime, compositorTiming);
-        layer->releasePendingBuffer(/*dequeueReadyTime*/ now);
+        layer->onPostComposition(display, glCompositionDoneFenceTime, presentFenceTime,
+                                 compositorTiming);
+        layer->releasePendingBuffer(presentTime.ns());
     }
 
     std::vector<std::pair<std::shared_ptr<compositionengine::Display>, sp<HdrLayerInfoReporter>>>
@@ -2468,13 +2467,16 @@
     mSomeDataspaceChanged = false;
     mVisibleRegionsWereDirtyThisFrame = false;
 
-    mTransactionCallbackInvoker.addPresentFence(mPreviousPresentFences[0].fence);
+    mTransactionCallbackInvoker.addPresentFence(std::move(presentFence));
     mTransactionCallbackInvoker.sendCallbacks(false /* onCommitOnly */);
     mTransactionCallbackInvoker.clearCompletedTransactions();
 
+    mTimeStats->incrementTotalFrames();
+    mTimeStats->setPresentFenceGlobal(presentFenceTime);
+
     if (display && display->isInternal() && display->getPowerMode() == hal::PowerMode::ON &&
-        mPreviousPresentFences[0].fenceTime->isValid()) {
-        mScheduler->addPresentFence(mPreviousPresentFences[0].fenceTime);
+        presentFenceTime->isValid()) {
+        mScheduler->addPresentFence(std::move(presentFenceTime));
     }
 
     const bool isDisplayConnected =
@@ -2486,9 +2488,6 @@
         }
     }
 
-    mTimeStats->incrementTotalFrames();
-    mTimeStats->setPresentFenceGlobal(mPreviousPresentFences[0].fenceTime);
-
     const size_t sfConnections = mScheduler->getEventThreadConnectionCount(mSfConnectionHandle);
     const size_t appConnections = mScheduler->getEventThreadConnectionCount(mAppConnectionHandle);
     mTimeStats->recordDisplayEventConnectionCount(sfConnections + appConnections);
@@ -2498,20 +2497,19 @@
         return;
     }
 
-    nsecs_t currentTime = systemTime();
     if (mHasPoweredOff) {
         mHasPoweredOff = false;
     } else {
-        nsecs_t elapsedTime = currentTime - getBE().mLastSwapTime;
-        const size_t numPeriods = static_cast<size_t>(elapsedTime / vsyncPeriod.ns());
+        const Duration elapsedTime = presentTime - getBE().mLastPresentTime;
+        const size_t numPeriods = static_cast<size_t>(elapsedTime.ns() / vsyncPeriod.ns());
         if (numPeriods < SurfaceFlingerBE::NUM_BUCKETS - 1) {
-            getBE().mFrameBuckets[numPeriods] += elapsedTime;
+            getBE().mFrameBuckets[numPeriods] += elapsedTime.ns();
         } else {
-            getBE().mFrameBuckets[SurfaceFlingerBE::NUM_BUCKETS - 1] += elapsedTime;
+            getBE().mFrameBuckets[SurfaceFlingerBE::NUM_BUCKETS - 1] += elapsedTime.ns();
         }
-        getBE().mTotalTime += elapsedTime;
+        getBE().mTotalTime += elapsedTime.ns();
     }
-    getBE().mLastSwapTime = currentTime;
+    getBE().mLastPresentTime = presentTime;
 
     // Cleanup any outstanding resources due to rendering a prior frame.
     getRenderEngine().cleanupPostRender();
@@ -2539,6 +2537,8 @@
         // getTotalSize returns the total number of buffers that were allocated by SurfaceFlinger
         ATRACE_INT64("Total Buffer Size", GraphicBufferAllocator::get().getTotalSize());
     }
+
+    logFrameStats(presentTime);
 }
 
 FloatRect SurfaceFlinger::getMaxDisplayBounds() {
@@ -2571,16 +2571,6 @@
     }
 }
 
-void SurfaceFlinger::postFrame() {
-    const auto display = FTL_FAKE_GUARD(mStateLock, getDefaultDisplayDeviceLocked());
-    if (display && getHwComposer().isConnected(display->getPhysicalId())) {
-        uint32_t flipCount = display->getPageFlipCount();
-        if (flipCount % LOG_FRAME_STATS_PERIOD == 0) {
-            logFrameStats();
-        }
-    }
-}
-
 void SurfaceFlinger::commitTransactions() {
     ATRACE_CALL();
 
@@ -4956,7 +4946,14 @@
     mFrameTimeline->parseArgs(args, result);
 }
 
-void SurfaceFlinger::logFrameStats() {
+void SurfaceFlinger::logFrameStats(TimePoint now) {
+    using namespace std::chrono_literals;
+
+    static TimePoint sTimestamp = now;
+    if (now - sTimestamp < 30min) return;
+    sTimestamp = now;
+
+    ATRACE_CALL();
     mDrawingState.traverse([&](Layer* layer) { layer->logFrameStats(); });
 }
 
@@ -5560,15 +5557,8 @@
                 reply->writeInt32(0);
                 reply->writeInt32(mDebugDisableHWC);
                 return NO_ERROR;
-            case 1013: {
-                const auto display = getDefaultDisplayDevice();
-                if (!display) {
-                    return NAME_NOT_FOUND;
-                }
-
-                reply->writeInt32(display->getPageFlipCount());
-                return NO_ERROR;
-            }
+            case 1013: // Unused.
+                return NAME_NOT_FOUND;
             case 1014: {
                 Mutex::Autolock _l(mStateLock);
                 // daltonize
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 7609241..8fddb70 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -56,6 +56,7 @@
 #include <compositionengine/OutputColorSetting.h>
 #include <scheduler/Fps.h>
 #include <scheduler/PresentLatencyTracker.h>
+#include <scheduler/Time.h>
 
 #include "ClientCache.h"
 #include "DisplayDevice.h"
@@ -174,7 +175,7 @@
     static const size_t NUM_BUCKETS = 8; // < 1-7, 7+
     nsecs_t mFrameBuckets[NUM_BUCKETS] = {};
     nsecs_t mTotalTime = 0;
-    std::atomic<nsecs_t> mLastSwapTime = 0;
+    TimePoint mLastPresentTime;
 };
 
 class SurfaceFlinger : public BnSurfaceComposer,
@@ -197,29 +198,6 @@
 
     static char const* getServiceName() ANDROID_API { return "SurfaceFlinger"; }
 
-    // This is the phase offset in nanoseconds of the software vsync event
-    // relative to the vsync event reported by HWComposer.  The software vsync
-    // event is when SurfaceFlinger and Choreographer-based applications run each
-    // frame.
-    //
-    // This phase offset allows adjustment of the minimum latency from application
-    // wake-up time (by Choreographer) to the time at which the resulting window
-    // image is displayed.  This value may be either positive (after the HW vsync)
-    // or negative (before the HW vsync). Setting it to 0 will result in a lower
-    // latency bound of two vsync periods because the app and SurfaceFlinger
-    // will run just after the HW vsync.  Setting it to a positive number will
-    // result in the minimum latency being:
-    //
-    //     (2 * VSYNC_PERIOD - (vsyncPhaseOffsetNs % VSYNC_PERIOD))
-    //
-    // Note that reducing this latency makes it more likely for the applications
-    // to not have their window content image ready in time.  When this happens
-    // the latency will end up being an additional vsync period, and animations
-    // will hiccup.  Therefore, this latency should be tuned somewhat
-    // conservatively (or at least with awareness of the trade-off being made).
-    static int64_t vsyncPhaseOffsetNs;
-    static int64_t sfVsyncPhaseOffsetNs;
-
     // If fences from sync Framework are supported.
     static bool hasSyncFramework;
 
@@ -386,10 +364,6 @@
     using DumpArgs = Vector<String16>;
     using Dumper = std::function<void(const DumpArgs&, bool asProto, std::string&)>;
 
-    // This value is specified in number of frames.  Log frame stats at most
-    // every half hour.
-    enum { LOG_FRAME_STATS_PERIOD =  30*60*60 };
-
     class State {
     public:
         explicit State(LayerVector::StateSet set) : stateSet(set), layersSortedByZ(set) {}
@@ -938,7 +912,6 @@
      * Compositing
      */
     void postComposition() REQUIRES(kMainThreadContext);
-    void postFrame() REQUIRES(kMainThreadContext);
 
     /*
      * Display management
@@ -1038,7 +1011,7 @@
     void clearStatsLocked(const DumpArgs& args, std::string& result);
     void dumpTimeStats(const DumpArgs& args, bool asProto, std::string& result) const;
     void dumpFrameTimeline(const DumpArgs& args, std::string& result) const;
-    void logFrameStats() REQUIRES(kMainThreadContext);
+    void logFrameStats(TimePoint now) REQUIRES(kMainThreadContext);
 
     void dumpVSync(std::string& result) const REQUIRES(mStateLock);
     void dumpStaticScreenStats(std::string& result) const;
diff --git a/services/surfaceflinger/TransactionCallbackInvoker.cpp b/services/surfaceflinger/TransactionCallbackInvoker.cpp
index d2c2e29..e5de759 100644
--- a/services/surfaceflinger/TransactionCallbackInvoker.cpp
+++ b/services/surfaceflinger/TransactionCallbackInvoker.cpp
@@ -178,8 +178,8 @@
     return NO_ERROR;
 }
 
-void TransactionCallbackInvoker::addPresentFence(const sp<Fence>& presentFence) {
-    mPresentFence = presentFence;
+void TransactionCallbackInvoker::addPresentFence(sp<Fence> presentFence) {
+    mPresentFence = std::move(presentFence);
 }
 
 void TransactionCallbackInvoker::sendCallbacks(bool onCommitOnly) {
diff --git a/services/surfaceflinger/TransactionCallbackInvoker.h b/services/surfaceflinger/TransactionCallbackInvoker.h
index 81d79f0..59abe33 100644
--- a/services/surfaceflinger/TransactionCallbackInvoker.h
+++ b/services/surfaceflinger/TransactionCallbackInvoker.h
@@ -70,7 +70,7 @@
     status_t registerUnpresentedCallbackHandle(const sp<CallbackHandle>& handle);
     void addEmptyTransaction(const ListenerCallbacks& listenerCallbacks);
 
-    void addPresentFence(const sp<Fence>& presentFence);
+    void addPresentFence(sp<Fence>);
 
     void sendCallbacks(bool onCommitOnly);
     void clearCompletedTransactions() {
diff --git a/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h b/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h
index c592358..86b7a7a 100644
--- a/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h
+++ b/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h
@@ -425,7 +425,8 @@
         mFlinger->clearStatsLocked(dumpArgs, result);
 
         mFlinger->dumpTimeStats(dumpArgs, fdp->ConsumeBool(), result);
-        FTL_FAKE_GUARD(kMainThreadContext, mFlinger->logFrameStats());
+        FTL_FAKE_GUARD(kMainThreadContext,
+                       mFlinger->logFrameStats(TimePoint::fromNs(fdp->ConsumeIntegral<nsecs_t>())));
 
         result = fdp->ConsumeRandomLengthString().c_str();
         mFlinger->dumpFrameTimeline(dumpArgs, result);
@@ -612,7 +613,6 @@
         mFlinger->getMaxAcquiredBufferCountForCurrentRefreshRate(mFdp.ConsumeIntegral<uid_t>());
 
         FTL_FAKE_GUARD(kMainThreadContext, mFlinger->postComposition());
-        FTL_FAKE_GUARD(kMainThreadContext, mFlinger->postFrame());
 
         mFlinger->calculateExpectedPresentTime({});