/////////////////////////////////////////////////////////////////////////////////
//
// nwthread.h is part of TestModbus-Client.
//
/////////////////////////////////////////////////////////////////////////////////

#ifndef _NWTHREAD_H_
#define _NWTHREAD_H_

#include <string>
#include <gtk/gtk.h>
#include <gdk/gdk.h>
#include <glib.h>
#include <sys/time.h>

#include "modbus.h"
#include "tcp.h"

enum {
	NWT_nothing,
	NWT_connect,
	NWT_running,
	NWT_error,
	NWT_close
};


struct {
	int fc;
	int reg;
	int cnt;
    uint16_t data[0x100];
} typedef NWTReqResult;


struct {
    int issend;
    int rawdatalen;
    char *rawdata;
} typedef NWTRawData;


struct {
    int type;
    char txt[];
} typedef NWTMessage;


class NetworkThread {
private:
	GMutex mutex;
	GThread *thread;
	int state;

	int req_new;				// new request

	modbustcp_rq_header req_mbh;
			//   .fc == 0 no request
	int req_timeout;			// timeout[ms]
	struct timeval req_time;
	TCP tcp;
	std::string host, port;

	void SetState(int s);
	void GuiSendStatustext(int type, char* txt);
	void GuiSendResult(char *buffer, int len, modbustcp_rq_header *mbh_in);
	void BuildAndSendReadReq(char *buffer, int size);

public:
	NetworkThread();
	~NetworkThread();

	void Lock();
	void UnLock();

	int Connect(std::string dest_host, std::string dest_port);
	int Disconnect();

	int GetState();
	int SendRequestRead(int unitid, int fc, int reg, int num);

	void Thread();
};


#endif