Apply JNI optimizations to HwParcel (67b1e0b8) · Commits · e / os / android_frameworks_base

core/java/android/os/HwParcel.java

+51 −1

Original line number	Diff line number	Diff line
		@@ -23,6 +23,8 @@ import android.annotation.SystemApi;
		import android.annotation.TestApi;
		import android.annotation.UnsupportedAppUsage;

		import dalvik.annotation.optimization.FastNative;

		import libcore.util.NativeAllocationRegistry;

		import java.lang.annotation.Retention;
		@@ -72,46 +74,54 @@ public class HwParcel {

		/**
		* Writes an interface token into the parcel used to verify that
		* a transaction has made it to the write type of interface.
		* a transaction has made it to the right type of interface.
		*
		* @param interfaceName fully qualified name of interface message
		* is being sent to.
		*/
		@FastNative
		public native final void writeInterfaceToken(String interfaceName);
		/**
		* Writes a boolean value to the end of the parcel.
		* @param val to write
		*/
		@FastNative
		public native final void writeBool(boolean val);
		/**
		* Writes a byte value to the end of the parcel.
		* @param val to write
		*/
		@FastNative
		public native final void writeInt8(byte val);
		/**
		* Writes a short value to the end of the parcel.
		* @param val to write
		*/
		@FastNative
		public native final void writeInt16(short val);
		/**
		* Writes a int value to the end of the parcel.
		* @param val to write
		*/
		@FastNative
		public native final void writeInt32(int val);
		/**
		* Writes a long value to the end of the parcel.
		* @param val to write
		*/
		@FastNative
		public native final void writeInt64(long val);
		/**
		* Writes a float value to the end of the parcel.
		* @param val to write
		*/
		@FastNative
		public native final void writeFloat(float val);
		/**
		* Writes a double value to the end of the parcel.
		* @param val to write
		*/
		@FastNative
		public native final void writeDouble(double val);
		/**
		* Writes a String value to the end of the parcel.
		@@ -120,6 +130,7 @@ public class HwParcel {
		*
		* @param val to write
		*/
		@FastNative
		public native final void writeString(String val);
		/**
		* Writes a native handle (without duplicating the underlying
		@@ -127,42 +138,50 @@ public class HwParcel {
		*
		* @param val to write
		*/
		@FastNative
		public native final void writeNativeHandle(@Nullable NativeHandle val);

		/**
		* Writes an array of boolean values to the end of the parcel.
		* @param val to write
		*/
		@FastNative
		private native final void writeBoolVector(boolean[] val);
		/**
		* Writes an array of byte values to the end of the parcel.
		* @param val to write
		*/
		@FastNative
		private native final void writeInt8Vector(byte[] val);
		/**
		* Writes an array of short values to the end of the parcel.
		* @param val to write
		*/
		@FastNative
		private native final void writeInt16Vector(short[] val);
		/**
		* Writes an array of int values to the end of the parcel.
		* @param val to write
		*/
		@FastNative
		private native final void writeInt32Vector(int[] val);
		/**
		* Writes an array of long values to the end of the parcel.
		* @param val to write
		*/
		@FastNative
		private native final void writeInt64Vector(long[] val);
		/**
		* Writes an array of float values to the end of the parcel.
		* @param val to write
		*/
		@FastNative
		private native final void writeFloatVector(float[] val);
		/**
		* Writes an array of double values to the end of the parcel.
		* @param val to write
		*/
		@FastNative
		private native final void writeDoubleVector(double[] val);
		/**
		* Writes an array of String values to the end of the parcel.
		@@ -171,6 +190,7 @@ public class HwParcel {
		*
		* @param val to write
		*/
		@FastNative
		private native final void writeStringVector(String[] val);
		/**
		* Writes an array of native handles to the end of the parcel.
		@@ -179,6 +199,7 @@ public class HwParcel {
		*
		* @param val array of {@link NativeHandle} objects to write
		*/
		@FastNative
		private native final void writeNativeHandleVector(NativeHandle[] val);

		/**
		@@ -299,6 +320,7 @@ public class HwParcel {
		* Write a hwbinder object to the end of the parcel.
		* @param binder value to write
		*/
		@FastNative
		public native final void writeStrongBinder(IHwBinder binder);

		/**
		@@ -314,48 +336,56 @@ public class HwParcel {
		* @return value parsed from the parcel
		* @throws IllegalArgumentException if the parcel has no more data
		*/
		@FastNative
		public native final boolean readBool();
		/**
		* Reads a byte value from the current location in the parcel.
		* @return value parsed from the parcel
		* @throws IllegalArgumentException if the parcel has no more data
		*/
		@FastNative
		public native final byte readInt8();
		/**
		* Reads a short value from the current location in the parcel.
		* @return value parsed from the parcel
		* @throws IllegalArgumentException if the parcel has no more data
		*/
		@FastNative
		public native final short readInt16();
		/**
		* Reads a int value from the current location in the parcel.
		* @return value parsed from the parcel
		* @throws IllegalArgumentException if the parcel has no more data
		*/
		@FastNative
		public native final int readInt32();
		/**
		* Reads a long value from the current location in the parcel.
		* @return value parsed from the parcel
		* @throws IllegalArgumentException if the parcel has no more data
		*/
		@FastNative
		public native final long readInt64();
		/**
		* Reads a float value from the current location in the parcel.
		* @return value parsed from the parcel
		* @throws IllegalArgumentException if the parcel has no more data
		*/
		@FastNative
		public native final float readFloat();
		/**
		* Reads a double value from the current location in the parcel.
		* @return value parsed from the parcel
		* @throws IllegalArgumentException if the parcel has no more data
		*/
		@FastNative
		public native final double readDouble();
		/**
		* Reads a String value from the current location in the parcel.
		* @return value parsed from the parcel
		* @throws IllegalArgumentException if the parcel has no more data
		*/
		@FastNative
		public native final String readString();
		/**
		* Reads a native handle (without duplicating the underlying file
		@@ -366,6 +396,7 @@ public class HwParcel {
		* @return a {@link NativeHandle} instance parsed from the parcel
		* @throws IllegalArgumentException if the parcel has no more data
		*/
		@FastNative
		public native final @Nullable NativeHandle readNativeHandle();
		/**
		* Reads an embedded native handle (without duplicating the underlying
		@@ -379,6 +410,7 @@ public class HwParcel {
		* @return a {@link NativeHandle} instance parsed from the parcel
		* @throws IllegalArgumentException if the parcel has no more data
		*/
		@FastNative
		public native final @Nullable NativeHandle readEmbeddedNativeHandle(
		long parentHandle, long offset);

		@@ -387,54 +419,63 @@ public class HwParcel {
		* @return array of parsed values
		* @throws IllegalArgumentException if the parcel has no more data
		*/
		@FastNative
		private native final boolean[] readBoolVectorAsArray();
		/**
		* Reads an array of byte values from the parcel.
		* @return array of parsed values
		* @throws IllegalArgumentException if the parcel has no more data
		*/
		@FastNative
		private native final byte[] readInt8VectorAsArray();
		/**
		* Reads an array of short values from the parcel.
		* @return array of parsed values
		* @throws IllegalArgumentException if the parcel has no more data
		*/
		@FastNative
		private native final short[] readInt16VectorAsArray();
		/**
		* Reads an array of int values from the parcel.
		* @return array of parsed values
		* @throws IllegalArgumentException if the parcel has no more data
		*/
		@FastNative
		private native final int[] readInt32VectorAsArray();
		/**
		* Reads an array of long values from the parcel.
		* @return array of parsed values
		* @throws IllegalArgumentException if the parcel has no more data
		*/
		@FastNative
		private native final long[] readInt64VectorAsArray();
		/**
		* Reads an array of float values from the parcel.
		* @return array of parsed values
		* @throws IllegalArgumentException if the parcel has no more data
		*/
		@FastNative
		private native final float[] readFloatVectorAsArray();
		/**
		* Reads an array of double values from the parcel.
		* @return array of parsed values
		* @throws IllegalArgumentException if the parcel has no more data
		*/
		@FastNative
		private native final double[] readDoubleVectorAsArray();
		/**
		* Reads an array of String values from the parcel.
		* @return array of parsed values
		* @throws IllegalArgumentException if the parcel has no more data
		*/
		@FastNative
		private native final String[] readStringVectorAsArray();
		/**
		* Reads an array of native handles from the parcel.
		* @return array of {@link NativeHandle} objects
		* @throws IllegalArgumentException if the parcel has no more data
		*/
		@FastNative
		private native final NativeHandle[] readNativeHandleAsArray();

		/**
		@@ -537,6 +578,7 @@ public class HwParcel {
		* @return binder object read from parcel or null if no binder can be read
		* @throws IllegalArgumentException if the parcel has no more data
		*/
		@FastNative
		public native final IHwBinder readStrongBinder();

		/**
		@@ -544,6 +586,7 @@ public class HwParcel {
		* @return blob of size expectedSize
		* @throws IllegalArgumentException if the parcel has no more data
		*/
		@FastNative
		public native final HwBlob readBuffer(long expectedSize);

		/**
		@@ -559,6 +602,7 @@ public class HwParcel {
		* @throws NullPointerException if the transaction specified the blob to be null
		* but nullable is false
		*/
		@FastNative
		public native final HwBlob readEmbeddedBuffer(
		long expectedSize, long parentHandle, long offset,
		boolean nullable);
		@@ -567,26 +611,31 @@ public class HwParcel {
		* Write a buffer into the transaction.
		* @param blob blob to write into the parcel.
		*/
		@FastNative
		public native final void writeBuffer(HwBlob blob);
		/**
		* Write a status value into the blob.
		* @param status value to write
		*/
		@FastNative
		public native final void writeStatus(int status);
		/**
		* @throws IllegalArgumentException if a success vaue cannot be read
		* @throws RemoteException if success value indicates a transaction error
		*/
		@FastNative
		public native final void verifySuccess();
		/**
		* Should be called to reduce memory pressure when this object no longer needs
		* to be written to.
		*/
		@FastNative
		public native final void releaseTemporaryStorage();
		/**
		* Should be called when object is no longer needed to reduce possible memory
		* pressure if the Java GC does not get to this object in time.
		*/
		@FastNative
		public native final void release();

		/**
		@@ -597,6 +646,7 @@ public class HwParcel {
		// Returns address of the "freeFunction".
		private static native final long native_init();

		@FastNative
		private native final void native_setup(boolean allocate);

		static {