3 files changed, 76 insertions, 5 deletions
diff --git a/include/android/choreographer.h b/include/android/choreographer.h
new file mode 100644
index 0000000000..02c83dc07c
--- /dev/null
+++ b/include/android/choreographer.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2015 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.
+ */
+
+/**
+ * @addtogroup Choreographer
+ * @{
+ */
+
+/**
+ * @file choreographer.h
+ */
+
+#ifndef ANDROID_CHOREOGRAPHER_H
+#define ANDROID_CHOREOGRAPHER_H
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+
+struct AChoreographer;
+typedef struct AChoreographer AChoreographer;
+
+/**
+ * Prototype of the function that is called when a new frame is being rendered.
+ * It's passed the time that the frame is being rendered as nanoseconds in the
+ * CLOCK_MONOTONIC time base, as well as the data pointer provided by the
+ * application that registered a callback. All callbacks that run as part of
+ * rendering a frame will observe the same frame time, so it should be used
+ * whenever events need to be synchronized (e.g. animations).
+ */
+typedef void (*AChoreographer_frameCallback)(long frameTimeNanos, void* data);
+
+/**
+ * Get the AChoreographer instance for the current thread. This must be called
+ * on an ALooper thread.
+ */
+AChoreographer* AChoreographer_getInstance();
+
+/**
+ * Post a callback to be run on the next frame. The data pointer provided will
+ * be passed to the callback function when it's called.
+ */
+void AChoreographer_postFrameCallback(AChoreographer* choreographer,
+                AChoreographer_frameCallback callback, void* data);
+/**
+ * Post a callback to be run on the frame following the specified delay. The
+ * data pointer provided will be passed to the callback function when it's
+ * called.
+ */
+void AChoreographer_postFrameCallbackDelayed(AChoreographer* choreographer,
+                AChoreographer_frameCallback callback, void* data, long delayMillis);
+__END_DECLS
+
+#endif // ANDROID_CHOREOGRAPHER_H
+
+/** @} */
diff --git a/include/binder/Status.h b/include/binder/Status.h
index ce947fa3de..7253af8fd3 100644
--- a/include/binder/Status.h
+++ b/include/binder/Status.h
@@ -18,6 +18,7 @@
 #define ANDROID_BINDER_STATUS_H
 
 #include <cstdint>
+#include <sstream>
 
 #include <binder/Parcel.h>
 #include <utils/String8.h>
@@ -142,11 +143,7 @@ private:
 };  // class Status
 
 // For gtest output logging
-template<typename T>
-T& operator<< (T& stream, const Status& s) {
-    stream << s.toString8().string();
-    return stream;
-}
+std::stringstream& operator<< (std::stringstream& stream, const Status& s);
 
 }  // namespace binder
 }  // namespace android
diff --git a/libs/binder/Status.cpp b/libs/binder/Status.cpp
index d3520d62e9..5ae6db2f58 100644
--- a/libs/binder/Status.cpp
+++ b/libs/binder/Status.cpp
@@ -158,5 +158,10 @@ String8 Status::toString8() const {
     return ret;
 }
 
+std::stringstream& operator<< (std::stringstream& stream, const Status& s) {
+    stream << s.toString8().string();
+    return stream;
+}
+
 }  // namespace binder
 }  // namespace android