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Tighten lock in writeState

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This commit is contained in:
Adrian Ulrich 2017-09-24 20:27:15 +02:00
parent 3369774158
commit 5a15f52a29
1 changed files with 23 additions and 18 deletions
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9
src/ch/blinkenlights/android/vanilla/SongTimeline.java
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@ -407,8 +407,14 @@ public final class SongTimeline {
{
// Must update PlaybackService.STATE_VERSION when changing behavior
// here.
ArrayList<Song> songs;
synchronized (this) {
ArrayList<Song> songs = mSongs;
// Just grab a copy and release the lock soon:
// Performing the actual IO is pretty expensive and
// could stall UI elements accessing the timeline.
songs = new ArrayList(mSongs);
}
int size = songs.size();
out.writeInt(size);
@ -427,7 +433,6 @@ public final class SongTimeline {
out.writeInt(mFinishAction);
out.writeInt(mShuffleMode);
}
}
/**
* Sets the current callback to <code>callback</code>.