Revert "Dump RenderThread stack on unresponsive"

bug:16563871
bug:16565900
bug:16555847
bug:16551643

This reverts commit ca66e06b9db6e6c921662886e4b7ddd02ac92280.

Change-Id: I23e8d4eaf828b1b298126ba5f36e4e8e7451706a

libs/hwui/renderthread/DrawFrameTask.cpp

@@ -85,7 +85,8 @@ int DrawFrameTask::drawFrame(nsecs_t frameTimeNanos, nsecs_t recordDurationNanos
 
 void DrawFrameTask::postAndWait() {
     AutoMutex _lock(mLock);
-    mRenderThread->queueAndWait(this, mSignal, mLock);
+    mRenderThread->queue(this);
+    mSignal.wait(mLock);
 }
 
 void DrawFrameTask::run() {

libs/hwui/renderthread/RenderProxy.cpp

@@ -412,7 +412,8 @@ void* RenderProxy::postAndWait(MethodInvokeRenderTask* task) {
     task->setReturnPtr(&retval);
     SignalingRenderTask syncTask(task, &mSyncMutex, &mSyncCondition);
     AutoMutex _lock(mSyncMutex);
-    mRenderThread.queueAndWait(&syncTask, mSyncCondition, mSyncMutex);
+    mRenderThread.queue(&syncTask);
+    mSyncCondition.wait(mSyncMutex);
     return retval;
 }
 

libs/hwui/renderthread/RenderThread.cpp

@@ -20,7 +20,6 @@
 
 #include <gui/DisplayEventReceiver.h>
 #include <utils/Log.h>
-#include <pthread.h>
 
 #include "../RenderState.h"
 #include "CanvasContext.h"
@@ -137,7 +136,6 @@ public:
 };
 
 RenderThread::RenderThread() : Thread(true), Singleton<RenderThread>()
-        , mThreadId(0)
         , mNextWakeup(LLONG_MAX)
         , mDisplayEventReceiver(0)
         , mVsyncRequested(false)
@@ -246,7 +244,6 @@ void RenderThread::requestVsync() {
 }
 
 bool RenderThread::threadLoop() {
-    mThreadId = pthread_self();
     initThreadLocals();
 
     int timeoutMillis = -1;
@@ -292,16 +289,6 @@ void RenderThread::queue(RenderTask* task) {
     }
 }
 
-void RenderThread::queueAndWait(RenderTask* task, Condition& signal, Mutex& lock) {
-    static nsecs_t sTimeout = milliseconds(500);
-    queue(task);
-    status_t err = signal.waitRelative(lock, sTimeout);
-    if (CC_UNLIKELY(err != NO_ERROR)) {
-        ALOGE("Timeout waiting for RenderTherad! err=%d", err);
-        nukeFromOrbit();
-    }
-}
-
 void RenderThread::queueAtFront(RenderTask* task) {
     AutoMutex _lock(mLock);
     mQueue.queueAtFront(task);
@@ -354,10 +341,6 @@ RenderTask* RenderThread::nextTask(nsecs_t* nextWakeup) {
     return next;
 }
 
-void RenderThread::nukeFromOrbit() {
-    pthread_kill(mThreadId, SIGABRT);
-}
-
 } /* namespace renderthread */
 } /* namespace uirenderer */
 } /* namespace android */

libs/hwui/renderthread/RenderThread.h

@@ -23,7 +23,6 @@
 #include <set>
 
 #include <cutils/compiler.h>
-#include <utils/Condition.h>
 #include <utils/Looper.h>
 #include <utils/Mutex.h>
 #include <utils/Singleton.h>
@@ -74,7 +73,6 @@ public:
     // RenderThread takes complete ownership of tasks that are queued
     // and will delete them after they are run
     ANDROID_API void queue(RenderTask* task);
-    void queueAndWait(RenderTask* task, Condition& signal, Mutex& lock);
     ANDROID_API void queueAtFront(RenderTask* task);
     void queueDelayed(RenderTask* task, int delayMs);
     void remove(RenderTask* task);
@@ -108,15 +106,11 @@ private:
     void dispatchFrameCallbacks();
     void requestVsync();
 
-    // VERY DANGEROUS HANDLE WITH EXTREME CARE
-    void nukeFromOrbit();
-
     // Returns the next task to be run. If this returns NULL nextWakeup is set
     // to the time to requery for the nextTask to run. mNextWakeup is also
     // set to this time
     RenderTask* nextTask(nsecs_t* nextWakeup);
 
-    pthread_t mThreadId;
     sp<Looper> mLooper;
     Mutex mLock;