Merge "Add TOUCH_NAVIGATION input source" into jb-mr2-dev
diff --git a/cmds/dumpstate/utils.c b/cmds/dumpstate/utils.c
index fd390f5..d081590 100644
--- a/cmds/dumpstate/utils.c
+++ b/cmds/dumpstate/utils.c
@@ -31,6 +31,7 @@
 #include <sys/klog.h>
 #include <time.h>
 #include <unistd.h>
+#include <sys/prctl.h>
 
 #include <cutils/debugger.h>
 #include <cutils/properties.h>
@@ -264,6 +265,9 @@
         const char *args[1024] = {command};
         size_t arg;
 
+        /* make sure the child dies when dumpstate dies */
+        prctl(PR_SET_PDEATHSIG, SIGKILL);
+
         va_list ap;
         va_start(ap, command);
         if (title) printf("------ %s (%s", title, command);
diff --git a/include/utils/Condition.h b/include/utils/Condition.h
index 8852d53..e63ba7e 100644
--- a/include/utils/Condition.h
+++ b/include/utils/Condition.h
@@ -48,6 +48,11 @@
         SHARED = 1
     };
 
+    enum WakeUpType {
+        WAKE_UP_ONE = 0,
+        WAKE_UP_ALL = 1
+    };
+
     Condition();
     Condition(int type);
     ~Condition();
@@ -57,6 +62,14 @@
     status_t waitRelative(Mutex& mutex, nsecs_t reltime);
     // Signal the condition variable, allowing one thread to continue.
     void signal();
+    // Signal the condition variable, allowing one or all threads to continue.
+    void signal(WakeUpType type) {
+        if (type == WAKE_UP_ONE) {
+            signal();
+        } else {
+            broadcast();
+        }
+    }
     // Signal the condition variable, allowing all threads to continue.
     void broadcast();
 
diff --git a/include/utils/Thread.h b/include/utils/Thread.h
index 4a34abd..df30611 100644
--- a/include/utils/Thread.h
+++ b/include/utils/Thread.h
@@ -67,6 +67,9 @@
     // Do not call from this object's thread; will return WOULD_BLOCK in that case.
             status_t    join();
 
+    // Indicates whether this thread is running or not.
+            bool        isRunning() const;
+
 #ifdef HAVE_ANDROID_OS
     // Return the thread's kernel ID, same as the thread itself calling gettid() or
     // androidGetTid(), or -1 if the thread is not running.
diff --git a/libs/gui/BufferQueue.cpp b/libs/gui/BufferQueue.cpp
index d93c067..41ee1be 100644
--- a/libs/gui/BufferQueue.cpp
+++ b/libs/gui/BufferQueue.cpp
@@ -995,7 +995,7 @@
 }
 
 status_t BufferQueue::drainQueueLocked() {
-    while (mSynchronousMode && !mQueue.isEmpty()) {
+    while (mSynchronousMode && mQueue.size() > 1) {
         mDequeueCondition.wait(mMutex);
         if (mAbandoned) {
             ST_LOGE("drainQueueLocked: BufferQueue has been abandoned!");
@@ -1012,7 +1012,7 @@
 status_t BufferQueue::drainQueueAndFreeBuffersLocked() {
     status_t err = drainQueueLocked();
     if (err == NO_ERROR) {
-        if (mSynchronousMode) {
+        if (mQueue.empty()) {
             freeAllBuffersLocked();
         } else {
             freeAllBuffersExceptHeadLocked();
diff --git a/libs/utils/Threads.cpp b/libs/utils/Threads.cpp
index eb96497..7b877e0 100644
--- a/libs/utils/Threads.cpp
+++ b/libs/utils/Threads.cpp
@@ -875,6 +875,11 @@
     return mStatus;
 }
 
+bool Thread::isRunning() const {
+    Mutex::Autolock _l(mLock);
+    return mRunning;
+}
+
 #ifdef HAVE_ANDROID_OS
 pid_t Thread::getTid() const
 {