1 files changed, 167 insertions, 0 deletions
diff --git a/nci/jni/SyncEvent.h b/nci/jni/SyncEvent.h
new file mode 100644
index 0000000..5828569
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+++ b/nci/jni/SyncEvent.h
@@ -0,0 +1,167 @@
+/*****************************************************************************
+**
+**  Name:           SyncEvent.h
+**
+**  Description:    Synchronize two or more threads using a condition variable
+**                  and a mutex.
+**
+**  Copyright (c) 2012, Broadcom Corp., All Rights Reserved.
+**  Proprietary and confidential.
+**
+*****************************************************************************/
+#pragma once
+#include "CondVar.h"
+#include "Mutex.h"
+
+
+class SyncEvent
+{
+public:
+    /*******************************************************************************
+    **
+    ** Function:        ~SyncEvent        
+    **
+    ** Description:     Cleanup all resources.
+    **                  
+    ** Returns:         None.
+    **
+    *******************************************************************************/
+    ~SyncEvent () 
+    {
+        mMutex.unlock (); 
+    }
+
+    
+    /*******************************************************************************
+    **
+    ** Function:        start
+    **
+    ** Description:     Start a synchronization operation.     
+    **                  
+    ** Returns:         None.
+    **
+    *******************************************************************************/
+    void start ()
+    {
+        mMutex.lock ();
+    }
+
+    
+    /*******************************************************************************
+    **
+    ** Function:        wait
+    **
+    ** Description:     Block the thread and wait for the event to occur.
+    **                  
+    ** Returns:         None.
+    **
+    *******************************************************************************/
+    void wait ()
+    { 
+        mCondVar.wait (mMutex);
+        end ();
+    }
+
+    
+    /*******************************************************************************
+    **
+    ** Function:        wait
+    **
+    ** Description:     Block the thread and wait for the event to occur.
+    **                  millisec: Timeout in milliseconds.
+    **                  
+    ** Returns:         True if wait is successful; false if timeout occurs.
+    **
+    *******************************************************************************/
+    bool wait (long millisec)
+    { 
+        bool retVal = mCondVar.wait (mMutex, millisec);
+        end ();
+        return retVal;
+    }
+
+    
+    /*******************************************************************************
+    **
+    ** Function:        notifyOne      
+    **
+    ** Description:     Notify a blocked thread that the event has occured. Unblocks it.     
+    **                  
+    ** Returns:         None.
+    **
+    *******************************************************************************/
+    void notifyOne () 
+    { 
+        mCondVar.notifyOne (); 
+        end ();
+    }
+
+    
+    /*******************************************************************************
+    **
+    ** Function:        end        
+    **
+    ** Description:     End a synchronization operation.     
+    **                  
+    ** Returns:         None.
+    **
+    *******************************************************************************/
+    void end () 
+    { 
+        mMutex.unlock ();
+    }
+    
+private:
+    CondVar mCondVar;
+    Mutex mMutex;
+};
+
+
+/*****************************************************************************/
+/*****************************************************************************/
+
+
+/*****************************************************************************
+**
+**  Name:           SyncEventGuard
+**
+**  Description:    Automatically start and end a synchronization event.
+**
+*****************************************************************************/
+class SyncEventGuard
+{
+public:
+    /*******************************************************************************
+    **
+    ** Function:        SyncEventGuard        
+    **
+    ** Description:     Start a synchronization operation.
+    **                  
+    ** Returns:         None.
+    **
+    *******************************************************************************/
+    SyncEventGuard (SyncEvent& event)
+    :   mEvent (event)
+    {
+        event.start (); //automatically start operation
+    };
+    
+
+    /*******************************************************************************
+    **
+    ** Function:        ~SyncEventGuard        
+    **
+    ** Description:     End a synchronization operation.
+    **                  
+    ** Returns:         None.
+    **
+    *******************************************************************************/
+    ~SyncEventGuard ()
+    {
+        mEvent.end (); //automatically end operation
+    };
+    
+private:
+    SyncEvent& mEvent;
+};
+