/*=================================================================================================
 *                  DD SYSTEM
 *                    DD.h
 * Version:           5.2
 * Description: The public header to use DD library libDD.a
 * List of changes:
 *       Apr. 17, 2002  Fedorov, - New error constant to interrupt the
 *       transmission if data dimensions are changed from file
 *       to file
 *       Nov 18, 2004 - V.4.2 - Fedorov, New errors for CACH manipulating
 *       Jun 17, 2007 - V.4.6  Fedorov New requestes and external executables
 *       Aug 02, 2007 - V.4.7  Fedorov Modification of call external executables
 *       Sep 24, 2007 - V.5.0  Fedorov New status of Get Data: MOREDELAY
 *       May 21, 2008 - V.5.1  Fedorov New Status of SetTime: CTIMEISSHIFTED
 *       Oct 18, 2012 - V.5.2  Knizhnikova New DD_SetTimeInfo() function
 * Dec 15, 2012  - Fedorov, V.6.0. DD_GetMultiData(). Request structure is very changed, CurrentData is not a global structure
 *=================================================================================================*/
 
#ifndef DD_H_
#define DD_H_

// #define LOG4CXX

#include "DD_comm.hh"
#include "DD_Access.hh"
#include "DD_time.hh"

#ifdef LOG4CXX
#include <log4cxx/logger.h>
#endif

#define VERSION "V.6.0"

class DD_Client {
private:
    /* variable for DD_GetInform */
	   DD_data_t idd;


public:

	DD_data_t *CurrentData;  /* Data block received recently */
	int _varNumber;

	int SocketID;                                /* Global socket id for this communication session */
	char UserName[USRLENGTH];                    /* string for user name  */
	char UserHost[MAXHOSTLENGTH];              /* IP of user's host in a string form */
	int  UserID;                                      /* ID of user at the user's host */                                         /* User's ID at a local client host */


	    unsigned int m1 ;
	    unsigned int m2 ;
	    unsigned int m3 ;
	    unsigned int m4 ;
	     //struct hostent *Host;        /* name & internet (32b) address for
	     //                               remout hosts (see netdb.h) */
	      char RemSerName[PATHLENGTH];        /* name of remote server */

	      //struct sockaddr_in IntAFAddr;    /* structure of internet address of type AF_INET
	      //                                    see <netinet/in.h>
	      //                                    to get name of socket we should
	      //                                    to convert pointer to this structure
	      //                                    to pointer to "srtruct sockaddr" where
	      //                                    all fields are  "char array". */

	   caddr_t buffSetVarialbe;
	   XDR xdrs;

	    /* variable for DD_SetTime */
	   caddr_t bufDD_SetTime;
	    XDR xdrsDD_SetTime;
	    int op;
	    char TimeInt[17];

	    /* variable for DD_GetData */
	    caddr_t bufDD_GetData ;
	    XDR xdrsDD_GetData;
	    int LastPacketFlag;

	    /* variable for DD_Close*/
	    caddr_t bufDD_Close;
	    XDR xdrsDD_Close;
	    int opDD_Close;

	    /* variable for DD_AddDataSet */
	    caddr_t bufDD_AddDataSet;
	    XDR xdrsDD_AddDataSet;
	    int opDD_AddDataSet;

	    /* variable for DD_GetVersion */
	    const char *Version;

	    DD_Client();

	    ~DD_Client();

	/*------------------- FUNCTIONS ---------------------------*/
	int ReceiveFromNet(char *buf, int PacketSize);

	int GetUserHost();

	void setUserHost(const char* host);	
	void setUserName(const char* name);

	int getInfoFromHostName(const char *hostName, struct sockaddr_in &addr);

	int GetSocket();

	 int DD_SetVariable(char *VarName);
	/*
	 * VarName - full name of variable <project>:<instrument>:<Variable>
	 * Returns VarID or negative in case of error (see bellow)
	 */

	 int DD_GetInform(int VarID,char *AttrName, DD_data_t **data);
	/*
	 * VarID    - Variable ID from DD_SetVariable
	 * AttrName - name of attribute ( defined by konvention )
	 * data - address of data structure
	 * Returns 1 if OK and negative value in case of error (see bellow)
	 */

	 int DD_SetTime(int VarID, char *Time);
	/*
	 * VarID    - Variable ID from DD_SetVariable
	 * Time - string defined in DD_time.h
	 * Returns 1 if OK and negative value in case of error (see bellow)
	 */

	 int DD_SetTimeInfo(int VarID, char *Time, double *RealTime);
	/*
	 * VarID    - Variable ID from DD_SetVariable
	 * Time - string defined in DD_time.h
	 * RealTime - time pointer was set to
	 * Returns 1 if OK and negative value in case of error (see bellow)
	 */

	 int DD_GetData(int VarID, char *VarName, char *TimeInt, DD_data_t **data);
	/*
	 * VarID    - Variable ID from DD_SetVariable
	 * VarName  - Name of requested Variable
	 * TimeInt  - String of Time interval in DD_time style
	 * data - address of data structure
	 * Returns 1 if OK and negative value in case of error (see bellow)
	 */

	 int DD_GetMultiData(int VarID,size_t VarSize, char **VarNames,char *TimeInt,DD_data_t **data, int BackFlag);
	 /*
	  * VarID    - Variable ID from DD_SetVariable
	  * VarSize  - number of variables to return
	  * VarNames  - the array of Names of the requested Variable
	  * TimeInt  - String of Time interval in DD_time style
	  * data -     Data structures array
	  * BackFlag - 0 - pointer is at the lasy position, 1 - pointer returns to the start point
	  * Returns 1 if OK and negative value in case of error (see bellow)
	  */

	 int DD_MovePoint(int VarID, int RecordNumber);
	/*
	 *  VarID    - Open virtual instrument ID
	 * int RecordNumber - +/- records to move
	 * Move pointer in the open instrument and return 1 or negative if error
	 */

	 int DD_Close(int VarID);
	/*
	 * VarID    - Variable ID from DD_SetVariable
	 * Returns 1 if OK and negative value in case of error (see bellow)
	 */

	 const char *DD_GetVersion();
	/*
	 * return static pointer to internal string with the DDLIB-SERVER package version
	 */

	/*----------- Data Update functions -----------------------------------*/
	 int DD_AddDataSet(char *DataSetName, char *RemSetID, char *BaseName);
	/*
	 * Request for new VI. See ../DOC/TECHDOC/DDServFunct.html
	 */

private:
#ifdef LOG4CXX
	 static log4cxx::LoggerPtr _logger;	
#endif
};
/*--------------------- CONSTANTS -----------------------------------------*/
#define MOREDATA      1  /* There is data, but we have to call GetData again right now*/
#define MOREDELAY     2  /* There is data, but we have to call GetData again after delay */
#define OK            0  /* It is last data packet */
#define NOCONNECTION -1
#define TOOMANYREQ   -2
#define REQSENDERR   -3
#define REPLYRECERR  -4
#define NOID         -5
#define NOREFFILE    -6
#define NOTIMESFILE  -7
#define NOINFOFILE   -8
#define NOVAR        -9
#define OUTOFTIME    -10
#define CACHERR       -11 /* The error occured when program manipulated the cach */
#define CACHTOOREC    -33 /* Off files in the CASH are created less then 5 sec ago */
#define WAITEXTCALL   -34 /* Server Waits external call finish */
#define TRYAGAIN      -35 /* Times file is locked. This request should be repeated again */
#define NODATAATTIME  -36 /* Requested time is inside NODATA time interval */
#define GAPISSMALL    -37 /* Gap is too small to call external archive */
#define CTIMEISSHIFTED -38 /* The request was in NoData interval, try again with time at the end */
#define DATAFILEERR   -12 /* The error while manipulate with data file */
#define ENVIRERROR -13    /* Error in Environments */
#define NOPOINTER  -14    /* The pointer points nowhere, SetTime were failed */
#define INTSERERR  -15    /* Server internal error */
#define TIMEINEMPTY -16   /* No data for specified time interval */
#define NOEXEC      -17   /* No executable */

#define DD_SHORT 4
#define DD_INT     1
#define DD_FLOAT   2
#define DD_DOUBLE 3
#define DD_CHAR   0

#endif /* DD_H_ */