Update the comment of MtpDevice#getObjectSizeLong
BUG=27805369
Change-Id: I63762fedf540e89e9ca811a143cb178881ef1830
diff --git a/media/java/android/mtp/MtpDevice.java b/media/java/android/mtp/MtpDevice.java
index aa99248..d0ef37c 100644
--- a/media/java/android/mtp/MtpDevice.java
+++ b/media/java/android/mtp/MtpDevice.java
@@ -358,9 +358,10 @@
/**
* Returns object size in 64-bit integer.
*
- * The object size stored in MtpObjectInfo is unsigned 32-bit integer.
- * The methods reads 64-bit object size from the object property so that it can fetch 4GB+
- * object size correctly.
+ * Though MtpObjectInfo#getCompressedSize returns the object size in 32-bit unsigned integer,
+ * this method returns the object size in 64-bit integer from the object property. Thus it can
+ * fetch 4GB+ object size correctly. If the device does not support objectSize property, it
+ * throws IOException.
* @hide
*/
public long getObjectSizeLong(int handle, int format) throws IOException {
diff --git a/media/jni/android_mtp_MtpDevice.cpp b/media/jni/android_mtp_MtpDevice.cpp
index f7c6770..6e434b2 100644
--- a/media/jni/android_mtp_MtpDevice.cpp
+++ b/media/jni/android_mtp_MtpDevice.cpp
@@ -701,6 +701,8 @@
device->discardEventRequest(seq);
}
+// Returns object size in 64-bit integer. If the MTP device does not support the property, it
+// throws IOException.
static jlong android_mtp_MtpDevice_get_object_size_long(
JNIEnv *env, jobject thiz, jint handle, jint format) {
MtpDevice* const device = get_device_from_object(env, thiz);