diff options
| -rw-r--r-- | services/usb/java/com/android/server/usb/UsbMidiDevice.java | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/services/usb/java/com/android/server/usb/UsbMidiDevice.java b/services/usb/java/com/android/server/usb/UsbMidiDevice.java index 97bf5059bf9b..38ede87d2b85 100644 --- a/services/usb/java/com/android/server/usb/UsbMidiDevice.java +++ b/services/usb/java/com/android/server/usb/UsbMidiDevice.java @@ -128,7 +128,7 @@ public final class UsbMidiDevice implements Closeable { mReceiver = receiver; } } - + public static UsbMidiDevice create(Context context, Bundle properties, int card, int device) { // FIXME - support devices with different number of input and output ports int subDeviceCount = nativeGetSubdeviceCount(card, device); @@ -203,6 +203,8 @@ public final class UsbMidiDevice implements Closeable { byte[] buffer = new byte[BUFFER_SIZE]; try { while (true) { + // Record time of event immediately after waking. + long timestamp = System.nanoTime(); synchronized (mLock) { if (!mIsOpen) break; @@ -215,14 +217,14 @@ public final class UsbMidiDevice implements Closeable { } else if ((pfd.revents & OsConstants.POLLIN) != 0) { // clear readable flag pfd.revents = 0; - + if (index == mInputStreams.length - 1) { // last file descriptor is used only for unblocking Os.poll() break; } int count = mInputStreams[index].read(buffer); - outputReceivers[index].send(buffer, 0, count); + outputReceivers[index].send(buffer, 0, count, timestamp); } } } |