ProcessVariableContext.h

#ifndef PROCESSVARIABLECONTEXT_H_
#define PROCESSVARIABLECONTEXT_H_

// Tools
#include "tools/Guard.h"

class ProcessVariableContext : public Guardable
{
public:
    ProcessVariableContext();
    
    virtual ~ProcessVariableContext();
    
    OrderedMutex &getMutex();
        
    void attach(Guard &guard);
    
    bool isAttached(Guard &guard);
    
    void incRef(Guard &guard);
        
    void decRef(Guard &guard);

    size_t getRefs(Guard &guard);
    
    void requestFlush(Guard &guard);
    
    bool isFlushRequested(Guard &guard);

    void flush(Guard &guard);
private:
    // The mutex
    OrderedMutex mutex;
    
    // The context
    struct ca_client_context *ca_context;
    
    // The reference count
    size_t refs;
    
    bool flush_requested;
};

#endif /*PROCESSVARIABLECONTEXT_H_*/