#ifndef _RESOURCEUSEEVENTSINK_H
#define _RESOURCEUSEEVENTSINK_H

#include "define_platform.h"

//set this on anything that accepts it to recieve memory delta information
//passive classes (classes that do not directly do anything) may use this interface to
//respond to changes in memory usage triggered by external function calls
//ResourceMonitor can recieve notifications from another ResourceMonitor
//but also keeps track of its own memory usage
class ResourceMonitor { //for recieving notfications from other ResourceMonitor's
protected:
	size_t m_memoryUsage;
	ResourceMonitor *m_re; //for signalling changes (optional)

	friend class Report_DomainSummary;
	friend class Report_Full;

public:
	ResourceMonitor(ResourceMonitor *_re=0); //optionally set the listener on instanciation
	virtual void setResourceMonitorEventSink(ResourceMonitor *_re=0);
	virtual const int memoryDelta(const int bytes, ResourceMonitor *ru=0); //for recieving notfications from other ResourceMonitor's
};

#endif