#ifndef PISYSTEMMONITOR_H
#define PISYSTEMMONITOR_H

#include "pithread.h"
#include "piprocess.h"

class PISystemMonitor: public PIThread
{
public:
	PISystemMonitor();
	
	struct ProcessStats {
		PIString exec_name;
		PIString state;
		int ID;
		int parent_ID;
		int group_ID;
		int session_ID;
		int priority;
		int threads;
		ulong physical_memsize;
		ulong resident_memsize;
		ulong share_memsize;
		ulong virtual_memsize;
		ulong data_memsize;
		PIString physical_memsize_readable;
		PIString resident_memsize_readable;
		PIString share_memsize_readable;
		PIString virtual_memsize_readable;
		PIString data_memsize_readable;
		float cpu_load_system;
		float cpu_load_user;
	};
	
	bool startOnProcess(int pID);
	bool startOnSelf() {return startOnProcess(PIProcess::currentPID());}
	ProcessStats & statistic() {return stat;}
	
private:
	void run();
	PIString readableSize(long bytes);
	
	PIFile file, filem;
	ProcessStats stat;
	int pID_, page_size, cpu_count, cycle;
#ifndef WINDOWS
	llong cpu_u_cur, cpu_u_prev, cpu_s_cur, cpu_s_prev;
#endif
	
};

#endif // PISYSTEMMONITOR_H