adding volatile flags to certain OD bools that get changed by the UI. May fix reported stalled tasks which I can't reproduce.

src/ondemand/ODManager.h

@@ -148,13 +148,13 @@ class ODManager
    ODLock mTasksMutex;
    
    //global pause switch for OD
-   bool mPause;
+   volatile bool mPause;
    ODLock mPauseLock;
 
-   int mNeedsDraw;
+   volatile int mNeedsDraw;
    
    ///Number of threads currently running.   Accessed thru multiple threads
-   int mCurrentThreads;
+   volatile int mCurrentThreads;
    //mutex for above variable
    ODLock mCurrentThreadsMutex;
    
@@ -162,10 +162,10 @@ class ODManager
    ///Maximum number of threads allowed out.
    int mMaxThreads;
    
-   bool mTerminate;
+   volatile bool mTerminate;
    ODLock mTerminateMutex;
    
-   bool mTerminated;
+   volatile bool mTerminated;
    ODLock mTerminatedMutex;
    
    //for the queue not empty comdition

src/ondemand/ODTask.h

@@ -146,11 +146,11 @@ class ODTask
    
 
    int   mTaskNumber;
-   float mPercentComplete;
+   volatile float mPercentComplete;
    ODLock mPercentCompleteMutex;
-   bool  mDoingTask;
-   bool  mTaskStarted;
-   bool mTerminate;
+   volatile bool  mDoingTask;
+   volatile bool  mTaskStarted;
+   volatile bool mTerminate;
    ODLock mTerminateMutex;
    //for a function not a member var.
    ODLock mBlockUntilTerminateMutex;
@@ -158,16 +158,16 @@ class ODTask
    std::vector<WaveTrack*> mWaveTracks;
    ODLock     mWaveTrackMutex;
    
-   sampleCount mDemandSample;
+   volatile sampleCount mDemandSample;
    ODLock      mDemandSampleMutex;
    
-   bool mIsRunning;
+   volatile bool mIsRunning;
    ODLock mIsRunningMutex;
    
    
    private:
    
-   bool mNeedsODUpdate;
+   volatile bool mNeedsODUpdate;
    ODLock mNeedsODUpdateMutex;