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Merge "UsbMidiDevice: add timestamps for input events" into mnc-dev

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This commit is contained in:
Phil Burk
2015-07-30 21:28:17 +00:00
committed by Android (Google) Code Review
parent 2f1a08e601 6456a65afe
commit 8f5228afe6
1 changed files with 5 additions and 3 deletions
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8
services/usb/java/com/android/server/usb/UsbMidiDevice.java
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@@ -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);
}
}
}