Rename sequenceNum to ID.

This is for consistency with ID in other places. Change it to signed
type to match Java int type.

Bug: 144889238
Test: atest inputflinger_tests
Change-Id: I8b6782a67f28aa13f7feaed2c97b8e87105019db
Merged-In: I8b6782a67f28aa13f7feaed2c97b8e87105019db
(cherry picked from commit 6a5a14e75b1a0fb377c670cb9a1e9ace60c5da74)
diff --git a/services/inputflinger/dispatcher/Entry.cpp b/services/inputflinger/dispatcher/Entry.cpp
index c4b3789..49630ad 100644
--- a/services/inputflinger/dispatcher/Entry.cpp
+++ b/services/inputflinger/dispatcher/Entry.cpp
@@ -86,8 +86,8 @@
 
 // --- EventEntry ---
 
-EventEntry::EventEntry(uint32_t sequenceNum, Type type, nsecs_t eventTime, uint32_t policyFlags)
-      : sequenceNum(sequenceNum),
+EventEntry::EventEntry(int32_t id, Type type, nsecs_t eventTime, uint32_t policyFlags)
+      : id(id),
         refCount(1),
         type(type),
         eventTime(eventTime),
@@ -117,8 +117,8 @@
 
 // --- ConfigurationChangedEntry ---
 
-ConfigurationChangedEntry::ConfigurationChangedEntry(uint32_t sequenceNum, nsecs_t eventTime)
-      : EventEntry(sequenceNum, Type::CONFIGURATION_CHANGED, eventTime, 0) {}
+ConfigurationChangedEntry::ConfigurationChangedEntry(int32_t id, nsecs_t eventTime)
+      : EventEntry(id, Type::CONFIGURATION_CHANGED, eventTime, 0) {}
 
 ConfigurationChangedEntry::~ConfigurationChangedEntry() {}
 
@@ -128,8 +128,8 @@
 
 // --- DeviceResetEntry ---
 
-DeviceResetEntry::DeviceResetEntry(uint32_t sequenceNum, nsecs_t eventTime, int32_t deviceId)
-      : EventEntry(sequenceNum, Type::DEVICE_RESET, eventTime, 0), deviceId(deviceId) {}
+DeviceResetEntry::DeviceResetEntry(int32_t id, nsecs_t eventTime, int32_t deviceId)
+      : EventEntry(id, Type::DEVICE_RESET, eventTime, 0), deviceId(deviceId) {}
 
 DeviceResetEntry::~DeviceResetEntry() {}
 
@@ -140,9 +140,8 @@
 // --- FocusEntry ---
 
 // Focus notifications always go to apps, so set the flag POLICY_FLAG_PASS_TO_USER for all entries
-FocusEntry::FocusEntry(uint32_t sequenceNum, nsecs_t eventTime, sp<IBinder> connectionToken,
-                       bool hasFocus)
-      : EventEntry(sequenceNum, Type::FOCUS, eventTime, POLICY_FLAG_PASS_TO_USER),
+FocusEntry::FocusEntry(int32_t id, nsecs_t eventTime, sp<IBinder> connectionToken, bool hasFocus)
+      : EventEntry(id, Type::FOCUS, eventTime, POLICY_FLAG_PASS_TO_USER),
         connectionToken(connectionToken),
         hasFocus(hasFocus) {}
 
@@ -154,11 +153,11 @@
 
 // --- KeyEntry ---
 
-KeyEntry::KeyEntry(uint32_t sequenceNum, nsecs_t eventTime, int32_t deviceId, uint32_t source,
+KeyEntry::KeyEntry(int32_t id, nsecs_t eventTime, int32_t deviceId, uint32_t source,
                    int32_t displayId, uint32_t policyFlags, int32_t action, int32_t flags,
                    int32_t keyCode, int32_t scanCode, int32_t metaState, int32_t repeatCount,
                    nsecs_t downTime)
-      : EventEntry(sequenceNum, Type::KEY, eventTime, policyFlags),
+      : EventEntry(id, Type::KEY, eventTime, policyFlags),
         deviceId(deviceId),
         source(source),
         displayId(displayId),
@@ -198,7 +197,7 @@
 
 // --- MotionEntry ---
 
-MotionEntry::MotionEntry(uint32_t sequenceNum, nsecs_t eventTime, int32_t deviceId, uint32_t source,
+MotionEntry::MotionEntry(int32_t id, nsecs_t eventTime, int32_t deviceId, uint32_t source,
                          int32_t displayId, uint32_t policyFlags, int32_t action,
                          int32_t actionButton, int32_t flags, int32_t metaState,
                          int32_t buttonState, MotionClassification classification,
@@ -206,7 +205,7 @@
                          float xCursorPosition, float yCursorPosition, nsecs_t downTime,
                          uint32_t pointerCount, const PointerProperties* pointerProperties,
                          const PointerCoords* pointerCoords, float xOffset, float yOffset)
-      : EventEntry(sequenceNum, Type::MOTION, eventTime, policyFlags),
+      : EventEntry(id, Type::MOTION, eventTime, policyFlags),
         eventTime(eventTime),
         deviceId(deviceId),
         source(source),
diff --git a/services/inputflinger/dispatcher/Entry.h b/services/inputflinger/dispatcher/Entry.h
index b5b61cc..c58ae23 100644
--- a/services/inputflinger/dispatcher/Entry.h
+++ b/services/inputflinger/dispatcher/Entry.h
@@ -30,7 +30,7 @@
 namespace android::inputdispatcher {
 
 // Sequence number for synthesized or injected events.
-constexpr uint32_t SYNTHESIZED_EVENT_SEQUENCE_NUM = 0;
+constexpr int32_t SYNTHESIZED_EVENT_ID = 0;
 
 struct EventEntry {
     enum class Type {
@@ -56,7 +56,7 @@
         }
     }
 
-    uint32_t sequenceNum;
+    int32_t id;
     mutable int32_t refCount;
     Type type;
     nsecs_t eventTime;
@@ -78,22 +78,20 @@
      * Key repeat is a synthesized event, because it is related to an actual hardware state
      * (a key is currently pressed), but the repeat itself is generated by the framework.
      */
-    inline bool isSynthesized() const {
-        return isInjected() || sequenceNum == SYNTHESIZED_EVENT_SEQUENCE_NUM;
-    }
+    inline bool isSynthesized() const { return isInjected() || id == SYNTHESIZED_EVENT_ID; }
 
     void release();
 
     virtual void appendDescription(std::string& msg) const = 0;
 
 protected:
-    EventEntry(uint32_t sequenceNum, Type type, nsecs_t eventTime, uint32_t policyFlags);
+    EventEntry(int32_t id, Type type, nsecs_t eventTime, uint32_t policyFlags);
     virtual ~EventEntry();
     void releaseInjectionState();
 };
 
 struct ConfigurationChangedEntry : EventEntry {
-    explicit ConfigurationChangedEntry(uint32_t sequenceNum, nsecs_t eventTime);
+    explicit ConfigurationChangedEntry(int32_t id, nsecs_t eventTime);
     virtual void appendDescription(std::string& msg) const;
 
 protected:
@@ -103,7 +101,7 @@
 struct DeviceResetEntry : EventEntry {
     int32_t deviceId;
 
-    DeviceResetEntry(uint32_t sequenceNum, nsecs_t eventTime, int32_t deviceId);
+    DeviceResetEntry(int32_t id, nsecs_t eventTime, int32_t deviceId);
     virtual void appendDescription(std::string& msg) const;
 
 protected:
@@ -114,7 +112,7 @@
     sp<IBinder> connectionToken;
     bool hasFocus;
 
-    FocusEntry(uint32_t sequenceNum, nsecs_t eventTime, sp<IBinder> connectionToken, bool hasFocus);
+    FocusEntry(int32_t id, nsecs_t eventTime, sp<IBinder> connectionToken, bool hasFocus);
     virtual void appendDescription(std::string& msg) const;
 
 protected:
@@ -144,10 +142,9 @@
     InterceptKeyResult interceptKeyResult; // set based on the interception result
     nsecs_t interceptKeyWakeupTime;        // used with INTERCEPT_KEY_RESULT_TRY_AGAIN_LATER
 
-    KeyEntry(uint32_t sequenceNum, nsecs_t eventTime, int32_t deviceId, uint32_t source,
-             int32_t displayId, uint32_t policyFlags, int32_t action, int32_t flags,
-             int32_t keyCode, int32_t scanCode, int32_t metaState, int32_t repeatCount,
-             nsecs_t downTime);
+    KeyEntry(int32_t id, nsecs_t eventTime, int32_t deviceId, uint32_t source, int32_t displayId,
+             uint32_t policyFlags, int32_t action, int32_t flags, int32_t keyCode, int32_t scanCode,
+             int32_t metaState, int32_t repeatCount, nsecs_t downTime);
     virtual void appendDescription(std::string& msg) const;
     void recycle();
 
@@ -176,13 +173,13 @@
     PointerProperties pointerProperties[MAX_POINTERS];
     PointerCoords pointerCoords[MAX_POINTERS];
 
-    MotionEntry(uint32_t sequenceNum, nsecs_t eventTime, int32_t deviceId, uint32_t source,
-                int32_t displayId, uint32_t policyFlags, int32_t action, int32_t actionButton,
-                int32_t flags, int32_t metaState, int32_t buttonState,
-                MotionClassification classification, int32_t edgeFlags, float xPrecision,
-                float yPrecision, float xCursorPosition, float yCursorPosition, nsecs_t downTime,
-                uint32_t pointerCount, const PointerProperties* pointerProperties,
-                const PointerCoords* pointerCoords, float xOffset, float yOffset);
+    MotionEntry(int32_t id, nsecs_t eventTime, int32_t deviceId, uint32_t source, int32_t displayId,
+                uint32_t policyFlags, int32_t action, int32_t actionButton, int32_t flags,
+                int32_t metaState, int32_t buttonState, MotionClassification classification,
+                int32_t edgeFlags, float xPrecision, float yPrecision, float xCursorPosition,
+                float yCursorPosition, nsecs_t downTime, uint32_t pointerCount,
+                const PointerProperties* pointerProperties, const PointerCoords* pointerCoords,
+                float xOffset, float yOffset);
     virtual void appendDescription(std::string& msg) const;
 
 protected:
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index 70cee18..2f7b5ad 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -302,7 +302,7 @@
     }
 
     MotionEntry* combinedMotionEntry =
-            new MotionEntry(motionEntry.sequenceNum, motionEntry.eventTime, motionEntry.deviceId,
+            new MotionEntry(motionEntry.id, motionEntry.eventTime, motionEntry.deviceId,
                             motionEntry.source, motionEntry.displayId, motionEntry.policyFlags,
                             motionEntry.action, motionEntry.actionButton, motionEntry.flags,
                             motionEntry.metaState, motionEntry.buttonState,
@@ -930,9 +930,9 @@
         entry->repeatCount += 1;
     } else {
         KeyEntry* newEntry =
-                new KeyEntry(SYNTHESIZED_EVENT_SEQUENCE_NUM, currentTime, entry->deviceId,
-                             entry->source, entry->displayId, policyFlags, entry->action,
-                             entry->flags, entry->keyCode, entry->scanCode, entry->metaState,
+                new KeyEntry(SYNTHESIZED_EVENT_ID, currentTime, entry->deviceId, entry->source,
+                             entry->displayId, policyFlags, entry->action, entry->flags,
+                             entry->keyCode, entry->scanCode, entry->metaState,
                              entry->repeatCount + 1, entry->downTime);
 
         mKeyRepeatState.lastKeyEntry = newEntry;
@@ -981,7 +981,7 @@
 
 void InputDispatcher::enqueueFocusEventLocked(const InputWindowHandle& window, bool hasFocus) {
     FocusEntry* focusEntry =
-            new FocusEntry(SYNTHESIZED_EVENT_SEQUENCE_NUM, now(), window.getToken(), hasFocus);
+            new FocusEntry(SYNTHESIZED_EVENT_ID, now(), window.getToken(), hasFocus);
     enqueueInboundEventLocked(focusEntry);
 }
 
@@ -1076,7 +1076,7 @@
         setInjectionResult(entry,
                            *dropReason == DropReason::POLICY ? INPUT_EVENT_INJECTION_SUCCEEDED
                                                              : INPUT_EVENT_INJECTION_FAILED);
-        mReporter->reportDroppedKey(entry->sequenceNum);
+        mReporter->reportDroppedKey(entry->id);
         return true;
     }
 
@@ -2188,8 +2188,8 @@
                                                  const InputTarget& inputTarget) {
     if (ATRACE_ENABLED()) {
         std::string message =
-                StringPrintf("prepareDispatchCycleLocked(inputChannel=%s, sequenceNum=%" PRIu32 ")",
-                             connection->getInputChannelName().c_str(), eventEntry->sequenceNum);
+                StringPrintf("prepareDispatchCycleLocked(inputChannel=%s, id=%" PRIx32 ")",
+                             connection->getInputChannelName().c_str(), eventEntry->id);
         ATRACE_NAME(message.c_str());
     }
 #if DEBUG_DISPATCH_CYCLE
@@ -2244,9 +2244,8 @@
                                                    const InputTarget& inputTarget) {
     if (ATRACE_ENABLED()) {
         std::string message =
-                StringPrintf("enqueueDispatchEntriesLocked(inputChannel=%s, sequenceNum=%" PRIu32
-                             ")",
-                             connection->getInputChannelName().c_str(), eventEntry->sequenceNum);
+                StringPrintf("enqueueDispatchEntriesLocked(inputChannel=%s, id=%" PRIx32 ")",
+                             connection->getInputChannelName().c_str(), eventEntry->id);
         ATRACE_NAME(message.c_str());
     }
 
@@ -2922,7 +2921,7 @@
     }
 
     MotionEntry* splitMotionEntry =
-            new MotionEntry(originalMotionEntry.sequenceNum, originalMotionEntry.eventTime,
+            new MotionEntry(originalMotionEntry.id, originalMotionEntry.eventTime,
                             originalMotionEntry.deviceId, originalMotionEntry.source,
                             originalMotionEntry.displayId, originalMotionEntry.policyFlags, action,
                             originalMotionEntry.actionButton, originalMotionEntry.flags,
@@ -2951,7 +2950,7 @@
         std::scoped_lock _l(mLock);
 
         ConfigurationChangedEntry* newEntry =
-                new ConfigurationChangedEntry(args->sequenceNum, args->eventTime);
+                new ConfigurationChangedEntry(args->id, args->eventTime);
         needWake = enqueueInboundEventLocked(newEntry);
     } // release lock
 
@@ -3030,7 +3029,7 @@
     accelerateMetaShortcuts(args->deviceId, args->action, keyCode, metaState);
 
     KeyEvent event;
-    event.initialize(args->sequenceNum, args->deviceId, args->source, args->displayId, INVALID_HMAC,
+    event.initialize(args->id, args->deviceId, args->source, args->displayId, INVALID_HMAC,
                      args->action, flags, keyCode, args->scanCode, metaState, repeatCount,
                      args->downTime, args->eventTime);
 
@@ -3057,7 +3056,7 @@
         }
 
         KeyEntry* newEntry =
-                new KeyEntry(args->sequenceNum, args->eventTime, args->deviceId, args->source,
+                new KeyEntry(args->id, args->eventTime, args->deviceId, args->source,
                              args->displayId, policyFlags, args->action, flags, keyCode,
                              args->scanCode, metaState, repeatCount, args->downTime);
 
@@ -3076,15 +3075,15 @@
 
 void InputDispatcher::notifyMotion(const NotifyMotionArgs* args) {
 #if DEBUG_INBOUND_EVENT_DETAILS
-    ALOGD("notifyMotion - eventTime=%" PRId64 ", deviceId=%d, source=0x%x, displayId=%" PRId32
-          ", policyFlags=0x%x, "
+    ALOGD("notifyMotion - id=%" PRIx32 " eventTime=%" PRId64 ", deviceId=%d, source=0x%x, "
+          "displayId=%" PRId32 ", policyFlags=0x%x, "
           "action=0x%x, actionButton=0x%x, flags=0x%x, metaState=0x%x, buttonState=0x%x, "
           "edgeFlags=0x%x, xPrecision=%f, yPrecision=%f, xCursorPosition=%f, "
           "yCursorPosition=%f, downTime=%" PRId64,
-          args->eventTime, args->deviceId, args->source, args->displayId, args->policyFlags,
-          args->action, args->actionButton, args->flags, args->metaState, args->buttonState,
-          args->edgeFlags, args->xPrecision, args->yPrecision, args->xCursorPosition,
-          args->yCursorPosition, args->downTime);
+          args->id, args->eventTime, args->deviceId, args->source, args->displayId,
+          args->policyFlags, args->action, args->actionButton, args->flags, args->metaState,
+          args->buttonState, args->edgeFlags, args->xPrecision, args->yPrecision,
+          args->xCursorPosition, args->yCursorPosition, args->downTime);
     for (uint32_t i = 0; i < args->pointerCount; i++) {
         ALOGD("  Pointer %d: id=%d, toolType=%d, "
               "x=%f, y=%f, pressure=%f, size=%f, "
@@ -3125,14 +3124,13 @@
             mLock.unlock();
 
             MotionEvent event;
-            event.initialize(args->sequenceNum, args->deviceId, args->source, args->displayId,
-                             INVALID_HMAC, args->action, args->actionButton, args->flags,
-                             args->edgeFlags, args->metaState, args->buttonState,
-                             args->classification, 1 /*xScale*/, 1 /*yScale*/, 0 /* xOffset */,
-                             0 /* yOffset */, args->xPrecision, args->yPrecision,
-                             args->xCursorPosition, args->yCursorPosition, args->downTime,
-                             args->eventTime, args->pointerCount, args->pointerProperties,
-                             args->pointerCoords);
+            event.initialize(args->id, args->deviceId, args->source, args->displayId, INVALID_HMAC,
+                             args->action, args->actionButton, args->flags, args->edgeFlags,
+                             args->metaState, args->buttonState, args->classification, 1 /*xScale*/,
+                             1 /*yScale*/, 0 /* xOffset */, 0 /* yOffset */, args->xPrecision,
+                             args->yPrecision, args->xCursorPosition, args->yCursorPosition,
+                             args->downTime, args->eventTime, args->pointerCount,
+                             args->pointerProperties, args->pointerCoords);
 
             policyFlags |= POLICY_FLAG_FILTERED;
             if (!mPolicy->filterInputEvent(&event, policyFlags)) {
@@ -3144,7 +3142,7 @@
 
         // Just enqueue a new motion event.
         MotionEntry* newEntry =
-                new MotionEntry(args->sequenceNum, args->eventTime, args->deviceId, args->source,
+                new MotionEntry(args->id, args->eventTime, args->deviceId, args->source,
                                 args->displayId, policyFlags, args->action, args->actionButton,
                                 args->flags, args->metaState, args->buttonState,
                                 args->classification, args->edgeFlags, args->xPrecision,
@@ -3188,7 +3186,7 @@
         std::scoped_lock _l(mLock);
 
         DeviceResetEntry* newEntry =
-                new DeviceResetEntry(args->sequenceNum, args->eventTime, args->deviceId);
+                new DeviceResetEntry(args->id, args->eventTime, args->deviceId);
         needWake = enqueueInboundEventLocked(newEntry);
     } // release lock
 
@@ -4631,7 +4629,7 @@
     if (keyEntry->flags & AKEY_EVENT_FLAG_FALLBACK) {
         if (!handled) {
             // Report the key as unhandled, since the fallback was not handled.
-            mReporter->reportUnhandledKey(keyEntry->sequenceNum);
+            mReporter->reportUnhandledKey(keyEntry->id);
         }
         return false;
     }
@@ -4796,7 +4794,7 @@
 #endif
 
             // Report the key as unhandled, since there is no fallback key.
-            mReporter->reportUnhandledKey(keyEntry->sequenceNum);
+            mReporter->reportUnhandledKey(keyEntry->id);
         }
     }
     return false;
@@ -4818,7 +4816,7 @@
 
 KeyEvent InputDispatcher::createKeyEvent(const KeyEntry& entry) {
     KeyEvent event;
-    event.initialize(entry.sequenceNum, entry.deviceId, entry.source, entry.displayId, INVALID_HMAC,
+    event.initialize(entry.id, entry.deviceId, entry.source, entry.displayId, INVALID_HMAC,
                      entry.action, entry.flags, entry.keyCode, entry.scanCode, entry.metaState,
                      entry.repeatCount, entry.downTime, entry.eventTime);
     return event;
diff --git a/services/inputflinger/dispatcher/InputState.cpp b/services/inputflinger/dispatcher/InputState.cpp
index 053598a..7fa9e09 100644
--- a/services/inputflinger/dispatcher/InputState.cpp
+++ b/services/inputflinger/dispatcher/InputState.cpp
@@ -268,9 +268,9 @@
     std::vector<EventEntry*> events;
     for (KeyMemento& memento : mKeyMementos) {
         if (shouldCancelKey(memento, options)) {
-            events.push_back(new KeyEntry(SYNTHESIZED_EVENT_SEQUENCE_NUM, currentTime,
-                                          memento.deviceId, memento.source, memento.displayId,
-                                          memento.policyFlags, AKEY_EVENT_ACTION_UP,
+            events.push_back(new KeyEntry(SYNTHESIZED_EVENT_ID, currentTime, memento.deviceId,
+                                          memento.source, memento.displayId, memento.policyFlags,
+                                          AKEY_EVENT_ACTION_UP,
                                           memento.flags | AKEY_EVENT_FLAG_CANCELED, memento.keyCode,
                                           memento.scanCode, memento.metaState, 0 /*repeatCount*/,
                                           memento.downTime));
@@ -281,11 +281,10 @@
         if (shouldCancelMotion(memento, options)) {
             const int32_t action = memento.hovering ? AMOTION_EVENT_ACTION_HOVER_EXIT
                                                     : AMOTION_EVENT_ACTION_CANCEL;
-            events.push_back(new MotionEntry(SYNTHESIZED_EVENT_SEQUENCE_NUM, currentTime,
-                                             memento.deviceId, memento.source, memento.displayId,
-                                             memento.policyFlags, action, 0 /*actionButton*/,
-                                             memento.flags, AMETA_NONE, 0 /*buttonState*/,
-                                             MotionClassification::NONE,
+            events.push_back(new MotionEntry(SYNTHESIZED_EVENT_ID, currentTime, memento.deviceId,
+                                             memento.source, memento.displayId, memento.policyFlags,
+                                             action, 0 /*actionButton*/, memento.flags, AMETA_NONE,
+                                             0 /*buttonState*/, MotionClassification::NONE,
                                              AMOTION_EVENT_EDGE_FLAG_NONE, memento.xPrecision,
                                              memento.yPrecision, memento.xCursorPosition,
                                              memento.yCursorPosition, memento.downTime,
@@ -332,16 +331,15 @@
                     : AMOTION_EVENT_ACTION_POINTER_DOWN
                             | (i << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT);
 
-            events.push_back(new MotionEntry(SYNTHESIZED_EVENT_SEQUENCE_NUM, currentTime,
-                                             memento.deviceId, memento.source, memento.displayId,
-                                             memento.policyFlags, action, 0 /*actionButton*/,
-                                             memento.flags, AMETA_NONE, 0 /*buttonState*/,
-                                             MotionClassification::NONE,
+            events.push_back(new MotionEntry(SYNTHESIZED_EVENT_ID, currentTime, memento.deviceId,
+                                             memento.source, memento.displayId, memento.policyFlags,
+                                             action, 0 /*actionButton*/, memento.flags, AMETA_NONE,
+                                             0 /*buttonState*/, MotionClassification::NONE,
                                              AMOTION_EVENT_EDGE_FLAG_NONE, memento.xPrecision,
                                              memento.yPrecision, memento.xCursorPosition,
                                              memento.yCursorPosition, memento.downTime,
-                                             pointerCount, pointerProperties,
-                                             pointerCoords, 0 /*xOffset*/, 0 /*yOffset*/));
+                                             pointerCount, pointerProperties, pointerCoords,
+                                             0 /*xOffset*/, 0 /*yOffset*/));
         }
 
         memento.firstNewPointerIdx = INVALID_POINTER_INDEX;