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[Media ML] Copy over Debug#getCallers(int)

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Bug: 164049795
Test: N/A
Change-Id: I6ace7e92e697137f8c68278e613b880e9d80ac97
This commit is contained in:
Jin Seok Park
2020-08-13 21:48:13 +09:00
parent 2ea424eac6
commit d9c93db011
1 changed files with 21 additions and 2 deletions
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23
services/core/java/com/android/server/media/MediaSessionStack.java
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@@ -20,7 +20,6 @@ import static com.android.server.media.SessionPolicyProvider.SESSION_POLICY_IGNO
import android.media.Session2Token;
import android.media.session.MediaSession;
import android.os.Debug;
import android.os.UserHandle;
import android.util.Log;
import android.util.SparseArray;
@@ -187,7 +186,7 @@ class MediaSessionStack {
*/
public void updateMediaButtonSessionIfNeeded() {
if (DEBUG) {
Log.d(TAG, "updateMediaButtonSessionIfNeeded, callers=" + Debug.getCallers(2));
Log.d(TAG, "updateMediaButtonSessionIfNeeded, callers=" + getCallers(2));
}
List<Integer> audioPlaybackUids =
mAudioPlayerStateMonitor.getSortedAudioPlaybackClientUids();
@@ -413,4 +412,24 @@ class MediaSessionStack {
// so they also need to be cleared.
mCachedActiveLists.remove(UserHandle.USER_ALL);
}
// Code copied from android.os.Debug#getCallers(int)
private static String getCallers(final int depth) {
final StackTraceElement[] callStack = Thread.currentThread().getStackTrace();
StringBuffer sb = new StringBuffer();
for (int i = 0; i < depth; i++) {
sb.append(getCaller(callStack, i)).append(" ");
}
return sb.toString();
}
// Code copied from android.os.Debug#getCaller(StackTraceElement[], int)
private static String getCaller(StackTraceElement[] callStack, int depth) {
// callStack[4] is the caller of the method that called getCallers()
if (4 + depth >= callStack.length) {
return "<bottom of call stack>";
}
StackTraceElement caller = callStack[4 + depth];
return caller.getClassName() + "." + caller.getMethodName() + ":" + caller.getLineNumber();
}
}