int pp_swapbytes(void *ptr, int bytes, int nchunk)
{
int i;
char *p;
char t;
p = (char*) ptr;
/* just deal with the 2 realistic cases; faster than
* doing the general case with two sliding pointers
*/
switch(bytes){
case 4:
for(i=0; i<nchunk; i++){
t=p[3]; p[3]=p[0]; p[0]=t;
t=p[2]; p[2]=p[1]; p[1]=t;
p+=4;
}
break;
case 8:
for(i=0; i<nchunk; i++){
t=p[7]; p[7]=p[0]; p[0]=t;
t=p[6]; p[6]=p[1]; p[1]=t;
t=p[5]; p[5]=p[2]; p[2]=t;
t=p[4]; p[4]=p[3]; p[3]=t;
p+=8;
}
break;
default:
pp_switch_bug("pp_swap_bytes"); ERR;
}
return 0;
ERRBLKI("pp_swapbytes");
}
int pp_extra_has_vector(const PPextravec extra, const PPrec *rec, const PPfile *ppfile) {
/* JAK comment ERROR returns could be better ?*/
const PPhdr *hdrp;
FILE *fh;
int pack;
int nread;
size_t pos, epos;
char *errmess;
Fint ic, ia, ib;
errmess="";
CKP(ppfile);
CKP(rec);
hdrp=&(rec->hdr);
fh = ppfile->fh;
pack = pp_get_var_packing(hdrp);
if (pack==0) {
pos=rec->datapos+(hdrp->LBROW*hdrp->LBNPT)*ppfile->wordsize;
epos=pos+hdrp->LBEXT*ppfile->wordsize;
ia=1;
while (pos < epos && ia > 0) {
fseek(fh, pos, SEEK_SET);
if ((nread=pp_read_words(&ic, 1, convert_int, ppfile)) != 1) ERR;
ia=ic/1000;
ib=ic-ia*1000;
if (ib == extra) {
switch (extra) {
case extra_x:
if (ia != hdrp->LBNPT) {
errmess="mismatch between pp header and extra data sections. Corrupt input file?";
ERR;
}
break;
case extra_y:
if (ia != hdrp->LBROW) {
errmess="mismatch between pp header and extra data sections. Corrupt input file?";
ERR;
}
break;
case extra_title:
;
default:
pp_switch_bug("pp_has_extra_vector");
}
return 1; /* found the axis we are after */
}
pos+=ia;
}
return 0;
} else {
errmess="only do unpacked exta data";
ERR;
}
err:
pp_error_mesg("pp_extra_has_vector",errmess);
return 0;
}
PPcalendartype pp_calendar_type(Fint type) {
switch(type%10) {
case 0:
/* fallthrough */
case 3:
return model;
break; /* notreached */
case 1:
return gregorian;
break; /* notreached */
case 2:
return cal360day;
break; /* notreached */
default:
pp_switch_bug("pp_calendar_type");
ERR;
}
/* on error return -1 (though only useful to calling routine if stored in an int
* not a PPcalendartype)
*/
ERRBLKI("pp_calendar_type");
}
Freal pp_time_diff(Fint LBTIM, const PPdate *date, const PPdate *orig_date)
{
long long secs;
switch(pp_calendar_type(LBTIM)) {
case gregorian:
return pp_sec_to_day(pp_gregorian_to_secs(date) - pp_gregorian_to_secs(orig_date));
break; /* notreached */
case cal360day:
secs =
date->second - orig_date->second +
60 * (date->minute - orig_date->minute +
60 * (date->hour - orig_date->hour +
24 * (date->day - orig_date->day +
30 * (date->month - orig_date->month +
12 * (long long) (date->year - orig_date->year) ))));
return pp_sec_to_day(secs);
break; /* notreached */
case model:
secs =
date->second - orig_date->second +
60 * (date->minute - orig_date->minute +
60 * (date->hour - orig_date->hour +
24 * (long long) (date->day - orig_date->day)));
return pp_sec_to_day(secs);
break; /* notreached */
default:
pp_switch_bug("pp_time_diff");
ERR;
}
ERRBLKF("pp_time_diff");
}
/*
* Routine to add dimensions and associated coordinate variables
* to cudims and cuvars.
* Also updates numbers of dims and vars
*/
int pp_add_dims_and_coord_vars(
PPlist *xaxes, PPlist *yaxes, PPlist *zaxes, PPlist *taxes, int tmdimid,
CuDim *cudims, CuVar *cuvars, int *ndimsp, int *nvarsp,
PPlist *heaplist)
{
PPlist *axislist;
PPaxistype axistype;
int idim; /* dim number of given type */
int dimid;
int varid;
PPlisthandle handle;
PPgenaxis *axis; /*JAK 2005-01-10 */
CuDim *dim;
CuVar *var;
/* PPdim *ppdim; */
PPvar *ppvar;
char dimnamestem[CU_MAX_NAME], units[CU_MAX_NAME];
char *varnamea, *varnameb;
char formulaterms[MAX_ATT_LEN+1];
PPlist *catts;
varid = *nvarsp;
dimid = *ndimsp;
for (axistype = 0; axistype < num_axistype; axistype++) {
switch(axistype){
case xaxistype: axislist = xaxes; break;
case yaxistype: axislist = yaxes; break;
case zaxistype: axislist = zaxes; break;
case taxistype: axislist = taxes; break;
default: pp_switch_bug("cdunifpp_process");
}
pp_list_startwalk(axislist, &handle);
idim = 0;
while ((axis = pp_list_walk(&handle, 0)) != NULL) {
dim = &cudims[dimid];
var = &cuvars[varid];
/* ppdim = (PPdim*) dim->internp; */
ppvar = (PPvar*) var->internp;
dim->coord = var;
axis->dimid = dimid;
dim->len = pp_genaxis_len(axis);
CKP( ppvar->data = pp_genaxis_getCF(axis, dimnamestem, units, ppvar->atts, heaplist) );
sprintf(dim->name, dimnamestem, idim);
if (units != NULL) {
strncpy(dim->units, units, CU_MAX_NAME);
dim->units[CU_MAX_NAME] = '\0';
}
strncpy(var->name, dim->name, CU_MAX_NAME);
var->name[CU_MAX_NAME] = '\0';
var->ndims = 1;
var->dims[0] = dimid;
varid++;
/* now add certain variables for hybrid_sigmap z axis */
if (axistype == zaxistype && pp_zaxis_lev_type(axis) == hybrid_sigmap_lev_type) {
catts = ppvar->atts; /* attribute list for the main coord var */
/* Hybrid sigma-p A coefficient */
var = &cuvars[varid];
ppvar = (PPvar*) var->internp;
sprintf(var->name, "z%d_hybrid_sigmap_acoeff", idim);
varnamea = var->name;
CKP( ppvar->data = pp_genaxis_to_values(axis, hybrid_sigmap_a_type, heaplist) );
CKI( pp_add_string_att(ppvar->atts, "units", "Pa", heaplist) );
CKI( pp_add_string_att(ppvar->atts, "long_name",
"atmospheric hybrid sigma-pressure 'A' coefficient", heaplist) );
var->ndims = 1;
var->dims[0] = dimid;
varid++;
/* Hybrid sigma-p B coefficient */
var = &cuvars[varid];
ppvar = (PPvar*) var->internp;
sprintf(var->name, "z%d_hybrid_sigmap_bcoeff", idim);
varnameb = var->name;
CKP( ppvar->data = pp_genaxis_to_values(axis, hybrid_sigmap_b_type, heaplist) );
CKI( pp_add_string_att(ppvar->atts, "long_name",
"atmospheric hybrid sigma-pressure 'B' coefficient", heaplist) );
var->ndims = 1;
var->dims[0] = dimid;
varid++;
snprintf(formulaterms, MAX_ATT_LEN, "ap: %s b: %s ps: ps p0: p0", varnamea, varnameb);
CKI( pp_add_string_att(catts, "formula_terms", formulaterms, heaplist) );
CKI( pp_add_string_att(catts, "standard_name", "atmosphere_hybrid_sigma_pressure_coordinate", heaplist) );
CKI( pp_add_string_att(catts, "comments",
"The \"ps\" term in formula_terms is set to \"ps\" variable. "
"This variable may or may not be provided.", heaplist) );
}
/* now add certain variables for hybrid_height z axis */
if (axistype == zaxistype && pp_zaxis_lev_type(axis) == hybrid_height_lev_type) {
catts = ppvar->atts; /* attribute list for the main coord var */
/* Hybrid height A coefficient */
var = &cuvars[varid];
ppvar = (PPvar*) var->internp;
sprintf(var->name, "z%d_hybrid_height_acoeff", idim);
varnamea = var->name;
CKP( ppvar->data = pp_genaxis_to_values(axis, hybrid_height_a_type, heaplist) );
CKI( pp_add_string_att(ppvar->atts, "units", "m", heaplist) );
var->ndims = 1;
var->dims[0] = dimid;
varid++;
/* Hybrid height B coefficient */
var = &cuvars[varid];
ppvar = (PPvar*) var->internp;
sprintf(var->name, "z%d_hybrid_height_bcoeff", idim);
varnameb = var->name;
CKP( ppvar->data = pp_genaxis_to_values(axis, hybrid_height_b_type, heaplist) );
var->ndims = 1;
var->dims[0] = dimid;
varid++;
snprintf(formulaterms, MAX_ATT_LEN, "a: %s b: %s orog: orography", varnamea, varnameb);
CKI( pp_add_string_att(catts, "formula_terms", formulaterms, heaplist) );
CKI( pp_add_string_att(catts, "standard_name", "atmosphere_hybrid_sigma_pressure_coordinate", heaplist) );
CKI( pp_add_string_att(catts, "comments",
"The \"orog\" term in formula_terms is set to \"orography\" variable. "
"This variable may or may not be provided.", heaplist) );
}
/* add the boundary variable for time mean */
if (axistype == taxistype && pp_taxis_is_time_mean(axis)) {
catts = ppvar->atts; /* attribute list for the main coord var */
var = &cuvars[varid];
ppvar = (PPvar*) var->internp;
sprintf(var->name, "time_bnd%d", idim);
CKP( ppvar->data = pp_taxis_to_boundary_values(axis->axis, heaplist) );
var->ndims = 2;
var->dims[0] = dimid;
var->dims[1] = tmdimid;
CKI( pp_add_string_att(catts, "bounds", var->name, heaplist) );
varid++;
}
dimid++;
idim++;
} /* end loop over axes of given */
} /* end loop over axis types */
*nvarsp = varid;
*ndimsp = dimid;
return 0;
ERRBLKI("pp_add_dims_and_coord_vars");
}
size_t pp_evaluate_lengths (const PPhdr *hdrp, const PPfile *ppfile, size_t *datalenp, size_t *disklenp) {
size_t datalen;
size_t disklen;
if (hdrp->LBPACK != 0) {
datalen=0;
if (hdrp->LBROW > 0 && hdrp->LBNPT>0)
datalen += hdrp->LBROW * hdrp->LBNPT;
if (hdrp->LBEXT > 0)
datalen += hdrp->LBEXT;
if (datalen==0)
datalen = hdrp->LBLREC;
/* Input array size (packed field):
* First try LBNREC
* then if Cray 32-bit packing, know ratio of packed to unpacked lengths;
* else use LBLREC
*
* For raw PP files, first try LBLREC if it's non-zero, because values of
* LBNREC written by CONVPP may be wrong (particularly if CONVPP does unpacking)
*/
switch(ppfile->type) {
case um_type:
disklen =
(hdrp->LBNREC != 0) ? hdrp->LBNREC :
(hdrp->LBPACK%10 ==2) ? datalen * 4 / ppfile->wordsize :
hdrp->LBLREC;
break;
case pp_type:
disklen =
(hdrp->LBLREC != 0) ? hdrp->LBLREC :
(hdrp->LBNREC != 0) ? hdrp->LBNREC :
(hdrp->LBPACK%10 ==2) ? datalen * 4 / ppfile->wordsize :
0;
break;
default:
pp_switch_bug("pp_evaluate_lengths"); ERR;
}
}
else {
disklen=0; /* init to avoid compiler warnings */
/* unpacked record */
datalen = hdrp->LBLREC;
/* UM file: try LBNREC first
*
* PP file: try LBLREC first, because convpp copies LBNREC direct from UM file
* without setting it to value appropriate to PP file
*/
switch(ppfile->type) {
case pp_type:
disklen = (hdrp->LBLREC != 0) ? hdrp->LBLREC : hdrp->LBNREC;
break;
case um_type:
disklen = (hdrp->LBNREC != 0) ? hdrp->LBNREC : hdrp->LBLREC;
break;
default:
pp_switch_bug("pp_evaluate_lengths"); ERR;
}
}
if (datalenp != NULL)
*datalenp = datalen;
if (disklenp != NULL)
*disklenp = disklen;
return 0;
ERRBLKI("pp_evaluate_lengths");
}
int pp_read_all_headers(CuFile *file)
{
FILE *fh;
int rec, nrec, recsize, filerec, nlrec;
void *hdr;
PPfile *ppfile;
PPrec **recs,*recp;
PPlist *heaplist;
Fint start_lookup, nlookup1, nlookup2, lbbegin, dataset_type, start_data;
size_t hdr_start, hdr_size, lbbegin_offset, datapos;
int *valid;
PPhdr *hdrp;
int fieldsfile;
ppfile=file->internp;
fh=ppfile->fh;
heaplist=ppfile->heaplist;
switch(ppfile->type) {
case pp_type:
fseek(fh,0,SEEK_SET);
/* count the PP records in the file */
for (nrec=0; (recsize=pp_skip_fortran_record(ppfile)) != -1; nrec++) {
ERRIF(recsize==-2);
if (recsize != n_hdr * ppfile->wordsize) {
CuError(CU_EOPEN,"Opening PP file %s: unsupported header length: %d words",
file->controlpath, recsize / ppfile->wordsize);
ERR;
}
ERRIF( pp_skip_fortran_record(ppfile) <0); /* skip the data record */
}
/* now rewind, and read in all the PP header data */
fseek(fh,0,SEEK_SET);
ppfile->nrec=nrec;
CKP( recs=pp_malloc(nrec*sizeof(PPrec*),heaplist) );
ppfile->recs = recs;
for (rec=0; rec<nrec; rec++){
/* fill in the record information - for each record, read the header
* record into heap memory, copy out of it the elements we want to store
* then free the heap memory.
*/
/* just skip the fortran integers - we've already tested header length */
CKI( pp_skip_word(ppfile) );
CKP( hdr=pp_read_header(ppfile,heaplist) );
CKI( pp_skip_word(ppfile) );
CKP( recp=pp_malloc(sizeof(PPrec),heaplist) );
recs[rec]=recp;
hdrp=&recp->hdr;
pp_store_header(hdrp, hdr);
if (ppfile->store_raw_headers) {
CKI( pp_store_raw_header(hdrp, hdr, heaplist) );
}
else {
hdrp->rawhdr = NULL;
}
recp->recno = rec;
/* skip data record but store length */
recp->datapos = ftell(fh) + ppfile->wordsize;
recp->disklen = pp_skip_fortran_record(ppfile) / ppfile->wordsize;
/* work out datalen */
pp_evaluate_lengths(hdrp, ppfile, &recp->datalen, NULL);
CKI( pp_free(hdr,heaplist) );
}
break;
case um_type:
/* pick out certain information from the fixed length header */
CKI( fseek(fh,4*ppfile->wordsize,SEEK_SET) );
ERRIF( pp_read_words(&dataset_type, 1, convert_int, ppfile) !=1);
CKI( fseek(fh,149*ppfile->wordsize,SEEK_SET) );
ERRIF( pp_read_words(&start_lookup, 1, convert_int, ppfile) !=1);
ERRIF( pp_read_words(&nlookup1, 1, convert_int, ppfile) !=1);
ERRIF( pp_read_words(&nlookup2, 1, convert_int, ppfile) !=1);
CKI( fseek(fh,159*ppfile->wordsize,SEEK_SET) );
ERRIF( pp_read_words(&start_data, 1, convert_int, ppfile) !=1);
/* fieldsfiles includes ancillary files and initial dumps */
fieldsfile = (dataset_type == 1 || dataset_type == 3 || dataset_type == 4);
/* (first dim of lookup documented as being 64 or 128, so
* allow header longer than n_hdr (64) -- discarding excess -- but not shorter)
*/
if (nlookup1 < n_hdr) {
CuError(CU_EOPEN,"Opening UM file %s: unsupported header length: %d words",
file->controlpath, nlookup1);
ERR;
}
/* count the valid records in the file */
/* loop over all records and pick out the valid ones - test for LBBEGIN != -99 */
nrec=0;
hdr_start = (start_lookup - 1) * ppfile->wordsize;
hdr_size = nlookup1 * ppfile->wordsize;
lbbegin_offset = 28 * ppfile->wordsize;
CKP( valid = pp_malloc(nlookup2 * sizeof(int),heaplist) );
for (filerec=0; filerec<nlookup2; filerec++) {
valid[filerec]=0;
CKI( fseek(fh, hdr_start + filerec * hdr_size + lbbegin_offset, SEEK_SET) );
ERRIF( pp_read_words(&lbbegin, 1, convert_int, ppfile) !=1);
if (lbbegin != -99) {
/* valid record */
valid[filerec]=1;
nrec++;
} else {
#ifdef BREAKATFIRSTINVALID
break;
#endif
valid[filerec]=0;
}
}
/* now read in all the PP header data */
ppfile->nrec=nrec;
CKP( recs=pp_malloc(nrec*sizeof(PPrec*),heaplist) );
ppfile->recs = recs;
rec=0; /* valid record number, as opposed to
* filerec which is total record number */
datapos = (start_data-1) * ppfile->wordsize;
#ifdef BREAKATFIRSTINVALID
nlrec=nrec;
#else
nlrec=nlookup2;
#endif
for (filerec=0; filerec<nlrec ; filerec++) {
if (valid[filerec]) {
/* seek to correct position, read in header into tmp dynamic array,
* store wanted elements in record structure, free tmp array
*/
CKI( fseek(fh, hdr_start + filerec*hdr_size, SEEK_SET) );
CKP( hdr=pp_read_header(ppfile,heaplist) );
CKP( recp=pp_malloc(sizeof(PPrec),heaplist) );
recs[rec]=recp;
hdrp=&recp->hdr;
pp_store_header(hdrp,hdr);
/* Set this for UM fieldsfile, else testing an uninitialised variable
in pp_var_get_extra_atts later. */
hdrp->rawhdr = NULL;
CKI( pp_free(hdr,heaplist) );
/* work out datalen and disklen */
pp_evaluate_lengths(hdrp, ppfile, &recp->datalen, &recp->disklen);
/* use LBBEGIN if it is set - this will not work if LBBEGIN refers to
* start record rather than start address
*/
if (hdrp->LBBEGIN != 0) {
/* Extra cast to uint handles files with LBBEGIN up to 2^32 */
recp->datapos=(size_t)((uint)hdrp->LBBEGIN)*ppfile->wordsize;
} else {
recp->datapos = datapos;
}
/* If LBNREC and LBBEGIN are both non-zero and it's not a FIELDSfile,
* the file has well-formed records. In that case,
* LBBEGIN should be correct, so do an assertion
*/
if (!fieldsfile && hdrp->LBNREC != 0 && hdrp->LBBEGIN != 0) {
if (recp->datapos != hdrp->LBBEGIN * ppfile->wordsize) {
CuError(CU_EOPEN,"start of data record mismatch: %d %d",
recp->datapos, hdrp->LBBEGIN * ppfile->wordsize);
ERR;
}
}
datapos += recp->disklen * ppfile->wordsize;
rec++;
}
}
CKI( pp_free(valid,heaplist) );
break;
default:
pp_switch_bug("pp_read_all_headers");
ERR;
}
return 0;
ERRBLKI("pp_read_all_headers");
}
size_t pp_read_words(void *ptr, size_t n, PPconvert conv, const PPfile *ppfile)
{
size_t i,nread,nread1;
void *tmp;
Fint8 dummy; /* a variable of longest word length which might be used - we point ptr at it,
* and use it as a place to store a variable of that length or shorter
*/
CKP(ppfile);
CKP(ptr);
if (ppfile->wordsize == wordsize || conv==convert_none) {
nread = fread(ptr, ppfile->wordsize, n, ppfile->fh);
/* NOTE: for 64-bit file packed with the CRAY32 method, the following call to swapbytes will
* transpose pairs of 32-bit data values. It is responsibility of calling routine to deal
* with this.
*/
if (ppfile->swap)
pp_swapbytes(ptr,ppfile->wordsize,nread);
}
else {
tmp = &dummy;
nread=0;
/* read and convert a word at a time - save allocating extra memory */
for (i=0; i<n; i++) {
nread1 = fread(tmp, ppfile->wordsize, 1, ppfile->fh);
if (nread1==0)
break;
nread += nread1;
if (ppfile->swap)
pp_swapbytes(tmp, ppfile->wordsize, nread1);
/* gruesome switches on constants in the loop - hoping the optimiser will sort it out -
* I'd rather not explicitly code copies of the loop inside the switch */
switch(ppfile->wordsize) {
case 4:
switch(conv) {
case convert_int: ((Fint *)ptr)[i] = *(Fint4 *)tmp; break;
case convert_real: ((Freal *)ptr)[i] = *(Freal4 *)tmp; break;
default: pp_switch_bug("pp_read_words"); ERR;
}
break;
case 8:
switch(conv) {
case convert_int: ((Fint *)ptr)[i] = *(Fint8 *)tmp; break;
case convert_real: ((Freal *)ptr)[i] = *(Freal8 *)tmp; break;
default: pp_switch_bug("pp_read_words"); ERR;
}
break;
default: pp_switch_bug("pp_read_words"); ERR;
}
}
}
return nread;
ERRBLK("pp_read_words",0);
}
void *pp_read_data_record(const PPrec *rec, const PPfile *ppfile, PPlist *heaplist)
{
size_t bytes, packed_bytes, nread;
FILE *fh;
PPconvert conv;
void *data, *data_expanded, *packed_data;
CuType vartype;
const PPhdr *hdrp;
int pack;
int nint;
int ipt, npoint, npoint_used;
Fint valid_landmask_value, *landmask_vals;
Freal mdi;
const void *fill_ptr;
const char *srcptr; /* points to compressed data; this could be of type Fint or Freal;
* use char* instead of void* to allow ptr arithmetic
*/
char *destptr; /* uncompressed data */
CKP(ppfile);
CKP(rec);
CKP(heaplist);
fh = ppfile->fh;
fseek(fh, rec->datapos, SEEK_SET);
hdrp=&rec->hdr;
pack = pp_get_var_packing(hdrp);
vartype=pp_get_var_type(hdrp);
if (pack==0) {
/* unpacked data -- read and convert according to type */
bytes = rec->datalen * wordsize;
CKP( data = pp_malloc(bytes,heaplist) );
if (vartype==inttype)
conv = convert_int;
else if (vartype==realtype)
conv = convert_real;
else {
conv=convert_none;
pp_switch_bug("pp_read_data_record"); ERR;
}
nread = pp_read_words(data, rec->datalen, conv, ppfile);
ERRIF(nread != rec->datalen);
}
else {
/* PACKING IN USE */
/* first allocate array and read in packed data */
packed_bytes = rec->disklen * ppfile->wordsize;
CKP( packed_data = pp_malloc(packed_bytes,heaplist) );
nread = pp_read_words(packed_data, rec->disklen, convert_none, ppfile);
ERRIF(nread != rec->disklen);
/* and allocate array for unpacked data*/
bytes = rec->datalen * wordsize;
CKP( data = pp_malloc(bytes,heaplist) );
/* NOW UNPACK ACCORDING TO PACKING TYPE: */
switch(pack) {
case 1:
/* WGDOS */
/* for this case we will use unwgdos routine */
/* unwgdos routine wants to know number of native integers in input.
* input type might not be native int, so calculate:
*/
nint = rec->disklen * ppfile->wordsize / sizeof(int);
mdi = *(Freal*)pp_get_var_fill_value(hdrp);
CKI( pp_unwgdos_wrap(packed_data, nint, data, rec->datalen, mdi, heaplist) );
break;
case 2:
/* CRAY 32-bit method */
if (vartype != realtype) {
CuError(CU_EINTERN,"Cray 32-bit unpacking supported only for REAL type data");
ERR;
}
/*
* in the event of a 64-bit file (which it probably is, else 32-bit packing is
* redundant), and if we're on a little-endian machine, the file was written on
* a cray, so the 64-bit byte swapping (whether done by cdunifpp or previously)
* will have had the side-effect of swapping pairs of 32-bit words and we need
* to swap them back again.
*
* NB LITTLE_ENDIAN_MACHINE is defined (if at all) in cdunifpp.h
*/
#ifdef LITTLE_ENDIAN_MACHINE
if (ppfile->wordsize == 8)
pp_swap32couplets(packed_data,packed_bytes);
#endif
for (ipt=0; ipt < rec->datalen ; ipt++)
*(((Freal*) (data)) + ipt) = *(((Freal4*) (packed_data)) + ipt);
break;
case 3:
CuError(CU_EINTERN,"GRIB unpacking not supported");
ERR;
/* break; */
default:
pp_switch_bug("pp_read_data_record"); ERR;
}
/* Okay - data unpacked - free up packed data */
CKI( pp_free(packed_data,heaplist) );
}
/* if land or sea mask compression, then allocate another array, and
* copy the relevant data across, filling the gaps with missing data
*/
if (pp_get_var_compression(hdrp) == 2) {
npoint = pp_genaxis_len(ppfile->landmask->xaxis) * pp_genaxis_len(ppfile->landmask->yaxis);
bytes = npoint * wordsize;
CKP( data_expanded = pp_malloc(bytes,heaplist) );
switch ((hdrp->LBPACK/100)%10) {
case 1:
/* land mask compression */
valid_landmask_value = 1;
break;
case 2:
/* sea mask compression */
valid_landmask_value = 0;
break;
default:
pp_switch_bug("pp_read_data_record"); ERR;
}
landmask_vals = ppfile->landmask->data->values;
srcptr = data;
destptr = data_expanded;
CKP( fill_ptr = pp_get_var_fill_value(hdrp) );
npoint_used = 0;
for (ipt = 0; ipt < npoint; ipt++) {
if (abs(landmask_vals[ipt]) == valid_landmask_value) {
if (npoint_used >= rec->datalen) {
CuError(CU_EINTERN,"Uncompressing tried to use more compressed data than available");
ERR;
}
memcpy(destptr,srcptr,wordsize);
srcptr += wordsize;
npoint_used++;
}
else {
memcpy(destptr,fill_ptr,wordsize);
}
destptr += wordsize;
}
if (npoint_used != rec->datalen) {
CuError(CU_EINTERN,"Uncompressing did not use all the compressed data");
ERR;
}
CKI( pp_free(data,heaplist) );
data = data_expanded;
}
return data;
ERRBLKP("pp_read_data_record");
}
int pp_process(CuFile *file)
{
int rec, nrec, at_start_rec, at_end_rec;
PPfile *ppfile;
PPfieldvar *fvar;
PPrec *recp;
PPhdr *hdrp;
PPgenaxis *xaxis, *yaxis, *zaxis, *taxis; /* JAK 2005-01-05 */
PPlist *heaplist;
PPlist *fieldvars;
PPlisthandle handle, thandle;
PPlist *gatts, *catts;
int ndims, dimid;
int idim; /* dim number of given type */
int have_time_mean, tmdimid; /* dimensions used for meaning (CF cell methods) */
CuDim *cudims,*dim;
PPdim *ppdim;
int nvars, varid, cvarid;
int ncvars; /* coord vars */
int nfvars; /* field vars */
int nvrec;
PPrec **recs, **vrecs;
CuVar *cuvars, *var;
PPvar *ppvar;
PPlist *atts;
PPlist *axislist;
PPlist *xaxes, *yaxes, *taxes, *zaxes; /* JAK 2005-01-05 */
PPgenaxis *axis; /*JAK 2005-01-10 */
int have_hybrid_sigmap;
PPaxistype axistype;
int rotmapid, rotgridid;
PPlist *rotgrids, *rotmaps;
PProtmap *rotmap;
PProtgrid *rotgrid;
CuVar *lonvar, *latvar;
PPvar *lonppvar, *latppvar;
PPlandmask *landmask;
char *varnamea, *varnameb;
char dimnamestem[CU_MAX_NAME], units[CU_MAX_NAME];
char formulaterms[MAX_ATT_LEN+1];
int dont_free_horiz_axes;
int added;
int zindex,tindex,svindex;
/* ------------------------------------------------------ */
/* initialisation constants which matter */
ncvars = 0;
have_hybrid_sigmap = 0;
have_time_mean = 0;
svindex = 1;
/* initialisation constants just to avoid compiler warnings
* (rather than get accustomed to ignoring warnings)
* but flow logic should mean that these vars do actually get
* initialised elsewhere before use
*/
at_end_rec=0;
xaxis=yaxis=NULL;
fvar=NULL;
zaxis=NULL;
taxis=NULL;
axislist=NULL;
tmdimid=-1;
dont_free_horiz_axes=0;
/* ------------------------------------------------------ */
ppfile = file->internp;
heaplist=ppfile->heaplist;
nrec = ppfile->nrec;
recs = ppfile->recs;
/* initialise elements in the records before sorting */
CKI( pp_initialise_records(recs, nrec, heaplist) );
/* sort the records */
qsort(recs, nrec, sizeof(PPrec*), pp_compare_records);
/* now sort out the list of variables and dimensions */
CKP( fieldvars=pp_list_new(heaplist) );
CKP( xaxes=pp_list_new(heaplist) );
CKP( yaxes=pp_list_new(heaplist) );
CKP( zaxes=pp_list_new(heaplist) );
CKP( taxes=pp_list_new(heaplist) );
CKP( rotmaps=pp_list_new(heaplist) );
CKP( rotgrids=pp_list_new(heaplist) );
/* before main loop over records, look for land mask */
for (rec=0; rec<nrec ; rec++) {
recp = recs[rec];
hdrp = &recp->hdr;
if (pp_var_is_land_mask(hdrp)) {
CKP( landmask = pp_malloc(sizeof(PPlandmask),heaplist) );
CKI( pp_set_horizontal_axes(recp,ppfile,&xaxis,&yaxis,rotmaps,heaplist) );
CKP( landmask->data = pp_data_new(inttype,pp_genaxis_len(xaxis) * pp_genaxis_len(yaxis),heaplist) ); /* JAK 2005-01-05 */
/* read in land mask data values */
landmask->xaxis = xaxis;
landmask->yaxis = yaxis;
CKP( landmask->data->values=pp_read_data_record(recp,ppfile,heaplist) );
ppfile->landmask = landmask;
}
}
/* ====== START LOOP OVER RECORDS ====== */
for (rec=0; rec<nrec ; rec++) {
recp = recs[rec];
hdrp = &recp->hdr;
/* we are at start record of a variable at the very start, or if at we were at the
* end record last time
*/
at_start_rec = ( rec == 0 || at_end_rec );
/* we are at end record of a variable at the very end, or if the header shows a
* difference from the next record which constitutes a different variable
*/
at_end_rec = ( rec == nrec-1 ||
pp_records_from_different_vars(recs[rec+1],recp));
/*------------------------------*/
/* allow for variables which are unsupported for some reason */
if (at_start_rec)
if (pp_test_skip_var(hdrp, ppfile->landmask))
continue;
/* -------
if (at_start_rec)
puts("++++++ START OF VARIABLE +++++++++");
printf("processing record %d / %d\n",rec,nrec);
pp_dump_header(hdrp);
------ */
if (at_start_rec) {
/* ====== THINGS DONE ONLY AT START RECORD OF EACH VARIABLE ====== */
/* get PPvar structure, and initialise certain structure members for tidiness */
CKP( fvar=pp_malloc(sizeof(PPfieldvar), heaplist) );
CKP( fvar->axes=pp_list_new(heaplist) ); /* JAK 2005-01-05 */
fvar->firstrecno = rec;
fvar->firstrec = recp;
if (pp_get_var_compression(hdrp) == 2) {
/* land/sea mask compression: for horiz axes use those of LSM */
xaxis = ppfile->landmask->xaxis;
yaxis = ppfile->landmask->yaxis;
dont_free_horiz_axes = 1;
} else {
CKI( pp_set_horizontal_axes(recp,ppfile,&xaxis,&yaxis,rotmaps,heaplist) );
dont_free_horiz_axes = 0;
}
CKP( zaxis=pp_genaxis_new(zaxis_type,zdir,heaplist) );
CKI( pp_zaxis_set(zaxis,hdrp) );
CKP( taxis=pp_genaxis_new(taxis_type,tdir,heaplist) );
CKI( pp_taxis_set(taxis,hdrp) );
}
/* construct pp_lev struct, and add it to the z axis if not already present
* (could already be present if field has multiple times on each level)
*/
/* ====== THINGS DONE FOR EVERY PP RECORD ====== */
CKI( pp_zaxis_add(zaxis, recp->lev, &zindex, heaplist) );
recp->zindex = zindex;
CKI( pp_taxis_add(taxis, recp->time, &tindex, heaplist) );
recp->tindex = tindex;
/* ===================================================== */
if (at_end_rec) {
/* ====== THINGS DONE ONLY AT END RECORD OF EACH VARIABLE ====== */
fvar->lastrecno = rec;
nvrec = fvar->lastrecno - fvar->firstrecno + 1;
vrecs = recs + fvar->firstrecno;
/* now if the axes are not regular, free the axes, split the variable into a number of variables and try again... */
if (pp_set_disambig_index(zaxis, taxis, vrecs, nvrec, svindex)) {
/* increment the supervar index, used later to show the connection between
* the separate variables into which this one will be split
*/
svindex++;
/* now re-sort this part of the record list, now that we have set the disambig index */
qsort(vrecs, nvrec, sizeof(PPrec*), pp_compare_records);
/* now go back to the start record of the variable; set to one less because it
* will get incremented in the "for" loop reinitialisation
*/
rec = fvar->firstrecno - 1;
/* and free the stuff assoc with the var we won't be using */
if (!dont_free_horiz_axes) {
CKI( pp_genaxis_free(xaxis,heaplist) );
CKI( pp_genaxis_free(yaxis,heaplist) );
}
CKI( pp_genaxis_free(zaxis,heaplist) );
CKI( pp_genaxis_free(taxis,heaplist) );
CKI( pp_free(fvar,heaplist) );
continue;
}
/*------------------------------------------------------------*/
/*
* For each axis, see if it matches an axis which already exists from a previous
* variable.
*
* If so, then free the structure and point to the existing occurrence instead.
*
* If not, then add to the list.
*/
/* x */
CKI( added = pp_list_add_or_find(xaxes, &xaxis, pp_genaxis_compare, 0,
(dont_free_horiz_axes ? NULL : (free_func) pp_genaxis_free),
NULL, heaplist) );
if (added)
ncvars++;
/* y */
CKI( added = pp_list_add_or_find(yaxes, &yaxis, pp_genaxis_compare, 0,
(dont_free_horiz_axes ? NULL : (free_func) pp_genaxis_free),
NULL, heaplist) );
if (added)
ncvars++;
/* z */
CKI( added = pp_list_add_or_find(zaxes, &zaxis, pp_genaxis_compare, 0,
(free_func) pp_genaxis_free,
NULL, heaplist) );
if (added) {
ncvars++;
if (pp_zaxis_lev_type(zaxis) == hybrid_sigmap_lev_type) {
/* two more coord vars (a and b coeffs) */
ncvars+=2;
have_hybrid_sigmap=1;
}
if (pp_zaxis_lev_type(zaxis) == hybrid_height_lev_type) {
/* two more coord vars (a and b coeffs) */
ncvars+=2;
}
}
/* t */
CKI( added = pp_list_add_or_find(taxes, &taxis, pp_genaxis_compare, 0,
(free_func) pp_genaxis_free,
NULL, heaplist) );
if (added) {
ncvars++;
if (pp_taxis_is_time_mean(taxis)) {
/* need to make sure we have the mean dim (size 2),
* also one more coordinate var
*/
have_time_mean=1;
ncvars++;
}
}
/* associate var with these axes */
CKI( pp_list_add(fvar->axes,xaxis,heaplist) );
CKI( pp_list_add(fvar->axes,yaxis,heaplist) );
CKI( pp_list_add(fvar->axes,zaxis,heaplist) );
CKI( pp_list_add(fvar->axes,taxis,heaplist) );
/* get the rotated grid, if any
* (NB this is done *after* the pp_list_add_or_find stuff above, because
* otherwise the axis pointers could get orphaned if the axes are found to
* be duplicates)
*/
CKP( fvar->rotgrid = pp_get_rotgrid(xaxis,yaxis,rotgrids,heaplist) );
/* add the variable */
CKI( pp_list_add(fieldvars, fvar, heaplist) );
/* ===================================================== */
}
}
/* ====================================================================
* Having completed the loop over records, we now know the number of
* dimensions and variables, so we can finally do the relevant calls
* to allocate these arrays and populate them usefully.
* ====================================================================
*/
/* FIRST ALLOCATE THE ARRAYS, and initialise some values */
nfvars = pp_list_size(fieldvars);
if (nfvars <= 0) {
CuError(CU_EOPEN,"No valid fields in file\n");
ERR; /* not the most elegant dealing with this error - ideally would free this file */
}
ndims = pp_list_size(xaxes) + pp_list_size(yaxes) + pp_list_size(zaxes) + pp_list_size(taxes);
if (have_time_mean){
tmdimid=ndims;
ndims++;
}
if (have_hybrid_sigmap) {
/* will need a scalar variable called "p0" */
ncvars++;
}
CKP( cudims = CuCreateDims(file,ndims) );
/* need a grid_mapping variable for every rotation mapping,
* and need lon and lat variables for every rotated grid
*/
ncvars += pp_list_size(rotmaps) + 2*pp_list_size(rotgrids);
nvars = ncvars + nfvars;
CKP( cuvars = CuCreateVars(file,nvars) );
for (dimid=0; dimid<ndims; dimid++) {
dim=&cudims[dimid];
dim->var = (CuVar*)0;
dim->coord = (CuVar*)0;
dim->datatype = realtype;
dim->dimtype = CuGlobalDim;
/* uncomment if internal structure is to be used
* CKP( dim->internp = pp_malloc(sizeof(PPdim), heaplist) );
* ppdim=(PPdim*)dim->internp;
*/
}
for (varid=0; varid<nvars; varid++) {
var=&cuvars[varid];
var->datatype = realtype;
CKP( var->internp = pp_malloc(sizeof(PPvar), heaplist) );
ppvar=(PPvar*)var->internp;
ppvar->firstrecno=-1;
ppvar->lastrecno=-1;
ppvar->data=NULL;
CKP( ppvar->atts = pp_list_new(heaplist) );
}
/*
* NOW POPULATE THE STRUCTURES
*
* The procedure will be to loop over all the axes, adding dimensions and
* variables associated with those axes.
*
* Having done that, any dimensions not associated with axes will be added,
* and then the field variables will be added.
*/
dimid=0;
varid=0;
for (axistype=0; axistype<num_axistype; axistype++) {
switch(axistype){
case xaxistype: axislist=xaxes; break;
case yaxistype: axislist=yaxes; break;
case zaxistype: axislist=zaxes; break;
case taxistype: axislist=taxes; break;
default: pp_switch_bug("cdunifpp_process");
}
pp_list_startwalk(axislist,&handle);
idim=0;
while ((axis=pp_list_walk(&handle,0))!=NULL) {
dim=&cudims[dimid];
var=&cuvars[varid];
ppdim=(PPdim*) dim->internp;
ppvar=(PPvar*) var->internp;
dim->coord = var;
axis->dimid=dimid;
dim->len=pp_genaxis_len(axis);
CKP( ppvar->data=pp_genaxis_getCF(axis,dimnamestem,units,ppvar->atts,heaplist) );
sprintf(dim->name,dimnamestem,idim);
if (units != NULL) {
strncpy(dim->units,units,CU_MAX_NAME);
dim->units[CU_MAX_NAME]='\0';
}
strncpy(var->name,dim->name,CU_MAX_NAME);
var->name[CU_MAX_NAME]='\0';
var->ndims=1;
var->dims[0] = dimid;
varid++;
/* now add certain variables for hybrid_sigmap z axis */
if (axistype == zaxistype && pp_zaxis_lev_type(axis) == hybrid_sigmap_lev_type) {
catts=ppvar->atts; /* attribute list for the main coord var */
/* Hybrid sigma-p A coefficient */
var=&cuvars[varid];
ppvar=(PPvar*) var->internp;
sprintf(var->name,"z%d_hybrid_sigmap_acoeff",idim);
varnamea=var->name;
CKP( ppvar->data = pp_genaxis_to_values(axis,hybrid_sigmap_a_type,heaplist) );
CKI( pp_add_string_att(ppvar->atts,"units","Pa",heaplist) );
CKI( pp_add_string_att(ppvar->atts,"long_name",
"atmospheric hybrid sigma-pressure 'A' coefficient",heaplist) );
var->ndims=1;
var->dims[0] = dimid;
varid++;
/* Hybrid sigma-p B coefficient */
var=&cuvars[varid];
ppvar=(PPvar*) var->internp;
sprintf(var->name,"z%d_hybrid_sigmap_bcoeff",idim);
varnameb=var->name;
CKP( ppvar->data = pp_genaxis_to_values(axis,hybrid_sigmap_b_type,heaplist) );
CKI( pp_add_string_att(ppvar->atts,"long_name",
"atmospheric hybrid sigma-pressure 'B' coefficient",heaplist) );
var->ndims=1;
var->dims[0] = dimid;
varid++;
snprintf(formulaterms,MAX_ATT_LEN,"ap: %s b: %s ps: ps p0: p0",varnamea,varnameb);
CKI( pp_add_string_att(catts,"formula_terms",formulaterms,heaplist) );
CKI( pp_add_string_att(catts,"standard_name","atmosphere_hybrid_sigma_pressure_coordinate",heaplist) );
CKI( pp_add_string_att(catts,"comments",
"The \"ps\" term in formula_terms is set to \"ps\" variable. "
"This variable may or may not be provided.",heaplist) );
}
/* now add certain variables for hybrid_height z axis */
if (axistype == zaxistype && pp_zaxis_lev_type(axis) == hybrid_height_lev_type) {
catts=ppvar->atts; /* attribute list for the main coord var */
/* Hybrid height A coefficient */
var=&cuvars[varid];
ppvar=(PPvar*) var->internp;
sprintf(var->name,"z%d_hybrid_height_acoeff",idim);
varnamea=var->name;
CKP( ppvar->data = pp_genaxis_to_values(axis,hybrid_height_a_type,heaplist) );
CKI( pp_add_string_att(ppvar->atts,"units","m",heaplist) );
var->ndims=1;
var->dims[0] = dimid;
varid++;
/* Hybrid height B coefficient */
var=&cuvars[varid];
ppvar=(PPvar*) var->internp;
sprintf(var->name,"z%d_hybrid_height_bcoeff",idim);
varnameb=var->name;
CKP( ppvar->data = pp_genaxis_to_values(axis,hybrid_height_b_type,heaplist) );
var->ndims=1;
var->dims[0] = dimid;
varid++;
snprintf(formulaterms,MAX_ATT_LEN,"a: %s b: %s orog: orography",varnamea,varnameb);
CKI( pp_add_string_att(catts,"formula_terms",formulaterms,heaplist) );
CKI( pp_add_string_att(catts,"standard_name","atmosphere_hybrid_sigma_pressure_coordinate",heaplist) );
CKI( pp_add_string_att(catts,"comments",
"The \"orog\" term in formula_terms is set to \"orography\" variable. "
"This variable may or may not be provided.",heaplist) );
}
/* add the boundary variable for time mean */
if (axistype == taxistype && pp_taxis_is_time_mean(axis)) {
catts=ppvar->atts; /* attribute list for the main coord var */
var=&cuvars[varid];
ppvar=(PPvar*) var->internp;
sprintf(var->name,"time_bnd%d",idim);
CKP( ppvar->data = pp_taxis_to_boundary_values(axis->axis,heaplist) );
var->ndims=2;
var->dims[0]=dimid;
var->dims[1]=tmdimid;
CKI( pp_add_string_att(catts,"bounds",var->name,heaplist) );
varid++;
}
dimid++;
idim++;
} /* end loop over axes of given */
} /* end loop over axis types */
/* add nv dimension if we had time mean */
if (have_time_mean) {
dim=&cudims[dimid];
strcpy(dim->name,"nv");
dim->len=2;
/* Should have tmdimid=dimid, but actually we already set it above (it evaluates to ndims)
* as we needed it before we got here. So just do a check here.
*/
if ( tmdimid != dimid ) {
pp_error_mesg("cdunifpp_process","ID wrong for 'nv' dimension?");
ERR;
}
dimid++;
}
/* add p0 variable if we had hybrid_sigmap coords */
if (have_hybrid_sigmap) {
var=&cuvars[varid];
ppvar=(PPvar*) var->internp;
sprintf(var->name,"p0");
var->ndims=0;
CKI( pp_add_string_att(ppvar->atts,"long_name",
"reference pressure value for atmospheric hybrid sigma-pressure coordinates",
heaplist) );
/* single value consisting of p0 */
CKP( ppvar->data = pp_data_new(realtype,1,heaplist) );
((Freal*)(ppvar->data->values))[0]=reference_pressure;
varid++;
}
/* add any rotated_pole variables */
rotmapid=0;
pp_list_startwalk(rotmaps,&handle);
while ((rotmap=pp_list_walk(&handle,0))!=NULL) {
var=&cuvars[varid];
ppvar=(PPvar*) var->internp;
sprintf(var->name,"rotated_pole%d",rotmapid);
strncpy(rotmap->name,var->name,CU_MAX_NAME);
rotmap->name[CU_MAX_NAME]='\0';
/* single value of arbitrary type; set as integer = 0 */
var->datatype=inttype;
var->ndims=0;
CKP( ppvar->data = pp_data_new(inttype,1,heaplist) );
((Freal*)(ppvar->data->values))[0]=0;
/* and add attributes */
catts=ppvar->atts;
CKI( pp_add_string_att(catts,"grid_mapping_name","rotated_latitude_longitude",heaplist) );
CKI( pp_add_att(catts,"grid_north_pole_longitude",realtype,1,&rotmap->pole_lon,heaplist) );
CKI( pp_add_att(catts,"grid_north_pole_latitude",realtype,1,&rotmap->pole_lat,heaplist) );
CKI( pp_add_att(catts,"north_pole_grid_longitude",realtype,1,&rotmap->truepole_gridlon,heaplist) );
rotmapid++;
varid++;
}
/* and add any lon, lat variables for rotated grids */
rotgridid=0;
pp_list_startwalk(rotgrids,&handle);
while ((rotgrid=pp_list_walk(&handle,0))!=NULL) {
lonvar=&cuvars[varid];
lonppvar=(PPvar*) lonvar->internp;
varid++;
latvar=&cuvars[varid];
latppvar=(PPvar*) latvar->internp;
varid++;
xaxis = rotgrid->xaxis;
yaxis = rotgrid->yaxis;
sprintf(lonvar->name,"true_lon%d",rotgridid);
sprintf(latvar->name,"true_lat%d",rotgridid);
sprintf(rotgrid->coords,"%s %s",lonvar->name,latvar->name);
lonvar->ndims=2;
latvar->ndims=2;
lonvar->dims[0]=yaxis->dimid;
latvar->dims[0]=yaxis->dimid;
lonvar->dims[1]=xaxis->dimid;
latvar->dims[1]=xaxis->dimid;
CKI( pp_calc_rot_grid(rotgrid,&lonppvar->data,&latppvar->data,heaplist) );
CKI( pp_add_string_att(lonppvar->atts,"long_name","longitude",heaplist) );
CKI( pp_add_string_att(latppvar->atts,"long_name","latitude",heaplist) );
CKI( pp_add_string_att(lonppvar->atts,"standard_name","longitude",heaplist) );
CKI( pp_add_string_att(latppvar->atts,"standard_name","latitude",heaplist) );
CKI( pp_add_string_att(lonppvar->atts,"units","degrees_east",heaplist) );
CKI( pp_add_string_att(latppvar->atts,"units","degrees_north",heaplist) );
CKI( pp_add_att(lonppvar->atts,"modulo",realtype,1,&lon_modulo,heaplist) );
rotgridid++;
}
/* sanity check - the variable ID for the next variable to be added should
* now match the number of coordinate variables
*/
if ( varid != ncvars ) {
pp_error_mesg("cdunifpp_process","wrong number of coord vars?");
ERR;
}
/* add all the attributes for coord variables
* (didn't do inside the loop because more complicated
* for hybrid z coords / t mean)
*/
for (cvarid=0; cvarid<ncvars; cvarid++) {
var=&cuvars[cvarid];
ppvar=(PPvar*) var->internp;
CKI( pp_copy_and_free_atts(file,var,ppvar->atts,heaplist) );
}
/*========================================================
* Okay we've done all the variables related to dimensions
* Add the field variables.
*========================================================
*/
pp_list_startwalk(fieldvars,&handle);
while ((fvar=pp_list_walk(&handle,0))!=NULL) {
var=&cuvars[varid];
ppvar=(PPvar*) var->internp;
atts = ppvar->atts;
hdrp = &fvar->firstrec->hdr;
CKI( pp_var_lookup(hdrp, &fvar->stashmeta) );
CKI( pp_get_var_name(varid, fvar->stashmeta.shortname, cuvars) );
var->ndims=4; /* rpw axeslist len */
/*
* Axes in fvar->axes list are fastest varying first (lon,lat,lev,time)
* But require them in netCDF-like order (time,lev,lat,lon), so
* reverse the order while copying into var->dims.
*/
idim=var->ndims;
pp_list_startwalk(fvar->axes,&thandle);
while ((axis=pp_list_walk(&thandle,0)) != NULL) {
var->dims[--idim] = axis->dimid;
}
var->datatype = pp_get_var_type(hdrp);
ppvar->firstrecno = fvar->firstrecno;
ppvar->lastrecno = fvar->lastrecno;
CKI( pp_var_get_extra_atts(var, fvar, cudims, atts, heaplist) );
CKI( pp_copy_and_free_atts(file, var, atts, heaplist) );
varid++;
}
/* sanity check - the variable ID for the next variable to be added (if there was one,
* which there isn't), should now match the total number of variables
*/
if ( varid != nvars ) {
pp_error_mesg("cdunifpp_process","wrong number of vars?");
ERR;
}
/* set numbers in file structure */
file->ndims=ndims;
file->nvars=nvars;
file->recdim=-1;
/* set global attributes */
CKP( gatts = pp_get_global_attributes(file->controlpath, ppfile, heaplist) );
CKI( pp_copy_and_free_atts(file,NULL,gatts,heaplist) );
/*========================================================
* All done and ready for dimget / varget.
*========================================================
*/
/* free what memory we can */
CKI( pp_free_tmp_vars(xaxes, yaxes, zaxes, taxes, fieldvars, heaplist) );
return 0;
ERRBLKI("pp_process");
}
