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SwRI can revise these Terms at any time * without notice by updating this posting. * * Trademarks * * The SwRI logo is a trademark of SwRI in the United States and other countries. * */ #ident "@(#) read_tbl.c 1.30 05/08/19 SwRI" #include #include "ret_codes.h" #include "gen_defs.h" #include "libbase_idfs.h" #include "libVIDF.h" /***************************************************************************** * * * IR_READ_IN_TBL SUBROUTINE * * * * DESCRIPTION * * This routine is called to read the table values from the VIDF file * * for the table number being processed. (no need for construction) * * * * INPUT VARIABLES * * SDDAS_SHORT sen the sensor being processed * * SDDAS_SHORT which_tbl the number of the table being processed * * SDDAS_FLOAT *tbl pointer to the table * * SDDAS_LONG tbl_off variable which holds the offset into table * * (-1 if need to read this info. from VIDF file)* * SDDAS_LONG tbl_size the maximum number of values associated with * * the given sensor * * SDDAS_SHORT btime_yr the start time requested (year component) * * SDDAS_SHORT btime_day the start time requested (day component) * * SDDAS_LONG btime_sec the start time requested (seconds component) * * SDDAS_LONG btime_nsec the start time requested (nanoseconds) * * SDDAS_SHORT etime_yr the stop time requested (year component) * * SDDAS_SHORT etime_day the stop time requested (day component) * * SDDAS_LONG etime_sec the stop time requested (seconds component) * * SDDAS_LONG etime_nsec the stop time requested (nanoseconds) * * * * USAGE * * x = ir_read_in_tbl (sen, &tbl, tbl_off, tbl_size, which_tbl, btime_yr, * * btime_day, btime_sec, btime_nsec, etime_yr, * * etime_day, etime_sec, etime_nsec) * * * * NECESSARY SUBPROGRAMS * * sizeof () the size of the specified object in bytes * * realloc() reallocates previously allocated memory * * ReadVIDF() reads information from the VIDF file * * ir_read_in_rval () returns an error code unique to this module * * for each possible ReadVIDF() error code * * ir_tento() returns the power of 10 value to multiply by * * to get values to the correct base (scaling) * * * * EXTERNAL VARIABLES * * struct general_info structure that holds information concerning * * ginfo the experiment that is being processed * * SDDAS_UINT ir_tmp_bytes number of bytes allocated for scratch space * * void *ir_tmp_space scratch space for various uses * * * * INTERNAL VARIABLES * * struct experiment_info a pointer to the structure that holds * * *ex specific experiment information * * struct inst_tbl_info a pointer to the structure which holds * * *tbl_info_ptr non-array table definition information * * for each table defined for data source * * reg SDDAS_FLOAT *f1 pointer to data values (SDDAS_FLOAT values) * * reg SDDAS_FLOAT power the scaling to be applied to the table values * * register SDDAS_LONG *l1 pointer to the values read * * register SDDAS_CHAR *c1 pointer to the scaling values * * SDDAS_ULONG data_key key which uniquely identifies the data set * * being processed * * SDDAS_LONG *lwk memory that holds the values * * SDDAS_LONG offset sensor offset into the table * * SDDAS_CHAR *cwk2 memory that holds the scaling values * * SDDAS_CHAR scale scaling factor to be applied to all values * * size_t bytes the number of bytes to allocate space for * * size_t num_bytes_slong the number of bytes needed for a SDDAS_LONG * * int ret_val holds the value returned by called routine * * void *tmp_ptr pointer which holds address passed back by * * the call to the MALLOC routine * * * * SUBSYSTEM * * Display Level * * * *****************************************************************************/ SDDAS_SHORT ir_read_in_tbl (SDDAS_SHORT sen, SDDAS_FLOAT *tbl, SDDAS_LONG tbl_off, SDDAS_LONG tbl_size, SDDAS_SHORT which_tbl, SDDAS_SHORT btime_yr, SDDAS_SHORT btime_day, SDDAS_LONG btime_sec, SDDAS_LONG btime_nsec, SDDAS_SHORT etime_yr, SDDAS_SHORT etime_day, SDDAS_LONG etime_sec, SDDAS_LONG etime_nsec) { extern struct general_info ginfo; extern SDDAS_UINT ir_tmp_bytes; extern void *ir_tmp_space; struct experiment_info *ex; struct inst_tbl_info *tbl_info_ptr; register SDDAS_FLOAT *f1, power; register SDDAS_LONG *l1; register SDDAS_CHAR *c1; SDDAS_ULONG data_key; SDDAS_LONG *lwk, offset; SDDAS_CHAR *cwk2, scale; /* Leave variables as is, no typedefs. */ int ret_val; size_t bytes, num_bytes_slong; void *tmp_ptr; /**********************************************************************/ /* Allocate space to hold the values to be read from the VIDF file. */ /**********************************************************************/ ex = ginfo.expt; data_key = ex->data_key; num_bytes_slong = sizeof (SDDAS_LONG); bytes = (num_bytes_slong + sizeof (SDDAS_CHAR)) * tbl_size; tbl_info_ptr = ex->tbl_info_ptr + which_tbl; if (bytes > ir_tmp_bytes) { if ((tmp_ptr = realloc (ir_tmp_space, bytes)) == NO_MEMORY) return (READ_IN_MALLOC); ir_tmp_space = tmp_ptr; ir_tmp_bytes = (SDDAS_UINT) bytes; } /* Cast ir_tmp_space to char * since void * and offset is in bytes. */ lwk = (SDDAS_LONG *) ir_tmp_space; cwk2 = (SDDAS_CHAR *) ((SDDAS_CHAR *) ir_tmp_space + num_bytes_slong * tbl_size); /**********************************************************************/ /* If the offset value passed into this routine is -1, read the */ /* offset value into the table from the VIDF file; otherwise, use */ /* the offset value passed into this routine. */ /**********************************************************************/ if (tbl_off == -1) { ret_val = ReadVIDF (data_key, btime_yr, btime_day, btime_sec, btime_nsec, etime_yr, etime_day, etime_sec, etime_nsec, (SDDAS_CHAR *) &offset, _TBL_OFF, which_tbl, (SDDAS_LONG) sen, 1); if (ret_val < 0) return (ir_read_in_rval (ret_val)); /*******************************************************************/ /* If offset is still -1, perhaps critical action table? If not, */ /* error condition; otherwise, just set to zero since "real" */ /* table values will be picked up by header change using status */ /* byte value. */ /*******************************************************************/ if (offset == -1) { if (tbl_info_ptr->crit_act_sz == 0) return (READ_IN_BAD_TBL_OFFSET); else offset = 0; } } else offset = tbl_off; /**********************************************************************/ /* Read the values and the size of the scaling table. */ /**********************************************************************/ ret_val = ReadVIDF (data_key, btime_yr, btime_day, btime_sec, btime_nsec, etime_yr, etime_day, etime_sec, etime_nsec, (SDDAS_CHAR *) lwk, _TBL, which_tbl, offset, (SDDAS_SHORT) tbl_size); if (ret_val < 0) return (ir_read_in_rval (ret_val)); /**********************************************************************/ /* There is one scaling value per value. */ /**********************************************************************/ if (tbl_info_ptr->tbl_sca_sz > 0) { ret_val = ReadVIDF (data_key, btime_yr, btime_day, btime_sec, btime_nsec, etime_yr, etime_day, etime_sec, etime_nsec, (SDDAS_CHAR *) cwk2, _TBL_SCA, which_tbl, offset, (SDDAS_SHORT) tbl_size); if (ret_val < 0) return (ir_read_in_rval (ret_val)); /************************************************************************/ /* For optimization purposes, it's advised to use ++x instead of x++. */ /************************************************************************/ for (f1 = tbl, l1 = lwk, c1 = cwk2; f1 < tbl + tbl_size; ++f1, ++l1, ++c1) *f1 = *l1 * ir_tento (*c1); } /**********************************************************************/ /* There is a single scaling value for each sensor. */ /**********************************************************************/ else if (tbl_info_ptr->tbl_sca_sz < 0) { ret_val = ReadVIDF (data_key, btime_yr, btime_day, btime_sec, btime_nsec, etime_yr, etime_day, etime_sec, etime_nsec, (SDDAS_CHAR *) &scale, _TBL_SCA, which_tbl, (SDDAS_LONG) sen, 1); if (ret_val < 0) return (ir_read_in_rval (ret_val)); /************************************************************************/ /* For optimization purposes, it's advised to use ++x instead of x++. */ /************************************************************************/ power = ir_tento (scale); for (f1 = tbl, l1 = lwk; f1 < tbl + tbl_size; ++f1, ++l1) *f1 = *l1 * power; } /**********************************************************************/ /* The stored values are considered already scaled. */ /* For optimization purposes, it's advised to use ++x instead of x++.*/ /**********************************************************************/ else for (f1 = tbl, l1 = lwk; f1 < tbl + tbl_size; ++f1, ++l1) *f1 = *l1; /**********************************************************************/ /* Once original table values have been retrieved, override the */ /* polynomial with the new slope/intercept values. The routine to */ /* override the coefficients has already checked to make sure the */ /* table is defined as a first order polynomial for all sensors. */ /**********************************************************************/ if (tbl_info_ptr->tbl_var == FN_SC_POTENTIAL && ex->override_potential_poly == sTrue) { f1 = tbl; *f1++ = ex->potential_intercept; *f1 = ex->potential_slope; } return (ALL_OKAY); } /******************************************************************************* * * * IR_READ_IN_RVAL SUBROUTINE * * * * DESCRIPTION * * This routine returns an error code unique to the module IR_READ_IN_TBL() * * based upon the error code returned by the call to ReadVIDF(). * * * * INPUT VARIABLES * * int ret_val the error code returned by ReadVIDF() * * * * USAGE * * x = ir_read_in_rval (ret_val) * * * * NECESSARY SUBPROGRAMS * * None * * * * EXTERNAL VARIABLES * * None * * * * INTERNAL VARIABLES * * None * * * * SUBSYSTEM * * Display Level * * * ******************************************************************************/ SDDAS_SHORT ir_read_in_rval (int ret_val) { switch (ret_val) { case IDF_MANY_BYTES: return (READ_IN_IDF_MANY_BYTES); case IDF_TBL_NUM: return (READ_IN_IDF_TBL_NUM); case IDF_CON_NUM: return (READ_IN_IDF_CON_NUM); case IDF_NO_ENTRY: return (READ_IN_IDF_NO_ENTRY); case VIDF_ELEMENT_NOT_FOUND: return (READ_IN_IDF_ELE_NOT_FOUND); default: return ((SDDAS_SHORT) ret_val); } }