/*  ============================================================================   File: EID.H                                                      11.AUG.97  ============================================================================                      UGST/ITU-T ERROR INSERTION MODULE                          GLOBAL FUNCTION PROTOTYPES   History:   28.Feb.92	v1.0	First version <hf@pkinbg.uucp>   20.Apr.92	v2.0	Changes due to eid.c v2.0 <hf@pkinbg.uucp>   30.Apr.92	v2.2	Update from UGST formats <tdsimao@cpqd.ansp.br>   04.Aug.93	v2.3	Add FER_generator_random and Bellcore EID    11.Aug.97    v2.31   Updated smart prototype list as per                         <Morgan.Lindqvist@era-t.ericsson.se> comments for the		        cc compiler in a DEC Alpha Unix machine.   10.Oct.97    v2.4    Added prototype for reset_burst_eid() <simao>     ============================================================================*/ #include <math.h>               /* RTL Math Function Declarations */#include <stdlib.h>             /* General utility definitions */#ifndef EID_defined#define EID_defined 300/* ......... Smart prototypes .......... */#ifndef ARGS#if (defined(__STDC__) || defined(VMS) || defined(__DECC)  || defined(MSDOS) || defined(__MSDOS__))#define ARGS(x) x#else#define ARGS(x) ()#endif#endif#define MODEL_SIZE 11#define MODEL_NUMBER 5#if defined(VMS) | defined(MSDOS) | defined (__MSDOS__) | defined (__STDC__)#define CONST const#else#define CONST static#endif/*  * ......... Structure for the channel model .........  */typedef struct {        unsigned long seed;             /* seed for random no.generator */        long nstates;                   /* number of states of the channel */                                        /* model */        long current_state;             /* index of current channel state */        double *ber;                    /* bit error rate in each state */        double **matrix;                /* matrix containing the probabilit. */                                        /* for changing from one state to */                                        /* another one */        double usrber;                  /* user defined bit error rate */        double usrgamma;                /* user defined correlation factor */               } SCD_EID;typedef struct {	unsigned long	seedptr;	long	internal[MODEL_SIZE];	long	s_new;	long	index;	} BURST_EID;/*  * ......... Definitions for G.192-compliant or non-compliant  .........  * ......... handling of soft bitstreams (post- and pre-STL92) .........  */#ifdef STL92 /* Non-compliant */# define BER_insertion BER_insertion_stl92# define FER_module FER_module_stl92#else /* Compliant */# define BER_insertion BER_insertion_stl96# define FER_module FER_module_stl96#endif/*  * ......... Global function prototypes .........  */SCD_EID         *open_eid ARGS((double ber, double gamma));BURST_EID	*open_burst_eid ARGS((long index));void            set_RAN_seed ARGS((SCD_EID *EID, unsigned long seed));unsigned long   get_RAN_seed ARGS((SCD_EID *EID));void            set_GEC_matrix ARGS((SCD_EID *EID, double threshold,                                int /* char */ current_state, int /* char */ next_state));double          get_GEC_matrix ARGS((SCD_EID *EID, int /* char */ current_state,                                int /* char */ next_state));void            set_GEC_current_state ARGS((SCD_EID *EID, int /* char */ current_state));char            get_GEC_current_state ARGS((SCD_EID *EID));void            BER_insertion ARGS((long lseg, short *xbuff, short *ybuff,                                short *error_pattern));double          BER_generator ARGS((SCD_EID *EID, long lseg, short *EPbuff));double          FER_generator_random ARGS((SCD_EID *EID));double          FER_generator_burst ARGS((BURST_EID *state));double          FER_module ARGS((SCD_EID *EID, long lseg, short *xbuff,                                 short *ybuff));double 		FER_generator_burst ARGS((BURST_EID *state));BURST_EID      *reset_burst_eid ARGS((BURST_EID *burst_eid));#endif/* ........................... End of EID.H ........................... */