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Eliminate unnecessary repeated calls to startListeners() #14

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Eliminate unnecessary repeated calls to startListeners() #14

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3 changes: 2 additions & 1 deletion TelloLib/Tello.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -42,7 +42,7 @@ public enum ConnectionState
}
public static ConnectionState connectionState = ConnectionState.Disconnected;

private static CancellationTokenSource cancelTokens = new CancellationTokenSource();//used to cancel listeners
private static CancellationTokenSource cancelTokens; //used to cancel listeners

public static void takeOff()
{
Expand Down Expand Up @@ -447,6 +447,7 @@ public static void connectionSetPause(bool bPause)
private static int maxPieceNum = 0;
private static void startListeners()
{
if (cancelTokens != null) return; //already started
cancelTokens = new CancellationTokenSource();
CancellationToken token = cancelTokens.Token;

Expand Down