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fix race-condition NPE by inspection

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This commit is contained in:
Eric House 2018-08-01 08:08:36 -07:00
parent 6a58a08bca
commit 0cc7d21ecb
1 changed files with 4 additions and 2 deletions
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6
xwords4/android/app/src/main/java/org/eehouse/android/xw4/BoardDelegate.java
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@ -115,7 +115,7 @@ public class BoardDelegate extends DelegateBase
private BoardUtilCtxt m_utils; private BoardUtilCtxt m_utils;
private boolean m_gameOver = false; private boolean m_gameOver = false;
private JNIThread m_jniThread; private volatile JNIThread m_jniThread;
private JNIThread m_jniThreadRef; private JNIThread m_jniThreadRef;
private JNIThread.GameStateInfo m_gsi; private JNIThread.GameStateInfo m_gsi;
@ -1817,7 +1817,9 @@ public class BoardDelegate extends DelegateBase
@Override @Override
public boolean engineProgressCallback() public boolean engineProgressCallback()
{ {
return ! m_jniThread.busy(); // return true if engine should keep going
JNIThread jnit = m_jniThread;
return jnit != null && !jnit.busy();
} }
@Override @Override