示例#1
0
文件: netcdf.cpp 项目: mmase/wgrib2
NcFile::NcFile( const char* path, FileMode fmode, 
		size_t* chunksizeptr, size_t initialsize, FileFormat fformat  )
{
    NcError err(NcError::silent_nonfatal); // constructor must not fail

    int mode = NC_NOWRITE;
    the_fill_mode = Fill;
    int status;
    
    // If the user wants a 64-bit offset format, set that flag.
    if (fformat == Offset64Bits)
       mode |= NC_64BIT_OFFSET;
#ifdef USE_NETCDF4
    else if (fformat == Netcdf4)
       mode |= NC_NETCDF4;
    else if (fformat == Netcdf4Classic)
       mode |= NC_NETCDF4|NC_CLASSIC_MODEL;
#endif

    switch (fmode) {
    case Write:
	mode |= NC_WRITE;
	/*FALLTHRU*/
    case ReadOnly:
	// use netcdf-3 interface to permit specifying tuning parameter
	status = NcError::set_err(
				  nc__open(path, mode, chunksizeptr, &the_id)
				  );
	if(status != NC_NOERR)
	{
	    NcError::set_err(status);
	    the_id =  -1;
	}
	in_define_mode = 0;
	break;
    case New:
	mode |= NC_NOCLOBBER;
	/*FALLTHRU*/
    case Replace:
	// use netcdf-3 interface to permit specifying tuning parameters
	status = NcError::set_err(
				  nc__create(path, mode, initialsize,
				      chunksizeptr, &the_id)
				  );
	if(status != NC_NOERR)
	{
	    NcError::set_err(status);
	    the_id =  -1;
	}
	in_define_mode = 1;
	break;
    default:
	the_id = ncBad;
	in_define_mode = 0;
	break;
    }
    if (is_valid()) {
	dimensions = new NcDim*[NC_MAX_DIMS];
	variables = new NcVar*[NC_MAX_VARS];
	int i;
	for (i = 0; i < num_dims(); i++)
	    dimensions[i] = new NcDim(this, i);
	for (i = 0; i < num_vars(); i++)
	    variables[i] = new NcVar(this, i);
	globalv = new NcVar(this, ncGlobal);
    } else {
	dimensions = 0;
	variables = 0;
	globalv = 0;
    }
}
示例#2
0
文件: nc.c 项目: zhangxiaoyu11/mAMBER
int
nc_open(const char * path, int ioflags, int *ncid_ptr)
{
	return nc__open(path, ioflags, NULL, ncid_ptr);
}
示例#3
0
/*ARGSUSED*/
int
main(int argc, char *argv[])
{
	int cmode=NC_CLOBBER, omode, ret;
	int	 id;
	char buf[256];
#ifdef SYNCDEBUG
	char *str = "one";
#endif
	int ii;
	size_t ui;
	const struct tcdfvar *tvp = testvars;
	union getret got;
	const size_t initialsz = 8192;
	size_t chunksz = 8192;
	size_t align = 8192/32;

#ifdef USE_PNETCDF
	MPI_Init(&argc, &argv);

        cmode |= (NC_PNETCDF);
	cmode |= (NC_64BIT_DATA);
	ret = nc_create_par(fname,cmode, MPI_COMM_WORLD, MPI_INFO_NULL, &id);
#else
	ret = nc__create(fname,cmode, initialsz, &chunksz, &id);
	if(ret != NC_NOERR) {
 		/* (void) fprintf(stderr, "trying again\n"); */
		ret = nc__create(fname,cmode, initialsz, &chunksz, &id);
	}
#endif
	if(ret != NC_NOERR)  {
		fprintf(stderr,"Error %s in file %s at line %d\n",nc_strerror(ret),__FILE__,__LINE__);
		exit(ret);
        }
	
	assert( nc_put_att_text(id, NC_GLOBAL,
		"TITLE", 12, "another name") == NC_NOERR);
	assert( nc_get_att_text(id, NC_GLOBAL,
		"TITLE", buf) == NC_NOERR);
/*	(void) printf("title 1 \"%s\"\n", buf); */
	assert( nc_put_att_text(id, NC_GLOBAL,
		"TITLE", strlen(fname), fname) == NC_NOERR);
	assert( nc_get_att_text(id, NC_GLOBAL,
		"TITLE", buf) == NC_NOERR);
	buf[strlen(fname)] = 0;
/*	(void) printf("title 2 \"%s\"\n", buf); */
	assert( strcmp(fname, buf) == 0);

	createtestdims(id, NUM_DIMS, sizes, dim_names);
	testdims(id, NUM_DIMS, sizes, dim_names);

	createtestvars(id, testvars, NUM_TESTVARS); 

 	{
 	int ifill = -1; double dfill = -9999;
 	assert( nc_put_att_int(id, Long_id,
 		_FillValue, NC_INT, 1, &ifill) == NC_NOERR);
 	assert( nc_put_att_double(id, Double_id,
 		_FillValue, NC_DOUBLE, 1, &dfill) == NC_NOERR);
 	}

#ifdef REDEF
	assert( nc__enddef(id, 0, align, 0, 2*align) == NC_NOERR );
	assert( nc_put_var1_int(id, Long_id, indices[3], &birthday) 
		== NC_NOERR );
	fill_seq(id);
	assert( nc_redef(id) == NC_NOERR );
/*	assert( nc_rename_dim(id,2, "a long dim name") == NC_NOERR); */
#endif

	assert( nc_rename_dim(id,1, "IXX") == NC_NOERR);
	assert( nc_inq_dim(id, 1, buf, &ui) == NC_NOERR);
	/* (void) printf("dimrename: %s\n", buf); */
	assert( nc_rename_dim(id,1, dim_names[1]) == NC_NOERR);

#ifdef ATTRX
	assert( nc_rename_att(id, 1, "UNITS", "units") == NC_NOERR);
	assert( nc_del_att(id, 4, "FIELDNAM")== NC_NOERR);
	assert( nc_del_att(id, 2, "SCALEMIN")== NC_NOERR);
	assert( nc_del_att(id, 2, "SCALEMAX")== NC_NOERR);
#endif /* ATTRX */

	assert( nc__enddef(id, 0, align, 0, 2*align) == NC_NOERR );

#ifndef REDEF
	fill_seq(id);
	assert( nc_put_var1_int(id, Long_id, indices[3], &birthday)== NC_NOERR );
#endif

	assert( nc_put_vara_schar(id, Byte_id, s_start, s_edges,
		(signed char *)sentence)
		== NC_NOERR);
	assert( nc_put_var1_schar(id, Byte_id, indices[6], (signed char *)(chs+1))
		== NC_NOERR);
	assert( nc_put_var1_schar(id, Byte_id, indices[5], (signed char *)chs)
		== NC_NOERR);

	assert( nc_put_vara_text(id, Char_id, s_start, s_edges, sentence)
		== NC_NOERR);
	assert( nc_put_var1_text(id, Char_id, indices[6], (chs+1))
		== NC_NOERR) ;
	assert( nc_put_var1_text(id, Char_id, indices[5], chs)
		== NC_NOERR);

	assert( nc_put_var1_short(id, Short_id, indices[4], shs)
		== NC_NOERR);

	assert( nc_put_var1_float(id, Float_id, indices[2], &e)
		== NC_NOERR);

	assert( nc_put_var1_double(id, Double_id, indices[1], &zed)
		== NC_NOERR);
	assert( nc_put_var1_double(id, Double_id, indices[0], &pinot)
		== NC_NOERR);


#ifdef SYNCDEBUG
	(void) printf("Hit Return to sync\n");
	gets(str);
	nc_sync(id,0);
	(void) printf("Sync done. Hit Return to continue\n");
	gets(str);
#endif /* SYNCDEBUG */

	ret = nc_close(id);
	/* (void) printf("nc_close ret = %d\n\n", ret); */


/*
 *	read it
 */
        omode = NC_NOWRITE;
#ifdef USE_PNETCDF
        omode |= NC_PNETCDF;
	ret = nc_open_par(fname,omode, MPI_COMM_WORLD, MPI_INFO_NULL, &id);
#else
	ret = nc__open(fname,omode, &chunksz, &id);
#endif
	if(ret != NC_NOERR)
	{
   	    (void) printf("Could not open %s: %s\n", fname,
			nc_strerror(ret));
   	    exit(1);
	}
	/* (void) printf("reopen id = %d for filename %s\n", */
	/* 	id, fname); */

	/*	NC	*/ 
	/* (void) printf("NC "); */
	assert( nc_inq(id, &(cdesc->num_dims), &(cdesc->num_vars),
		&(cdesc->num_attrs), &(cdesc->xtendim) ) == NC_NOERR);
	assert((size_t) cdesc->num_dims == num_dims);
	assert(cdesc->num_attrs == 1);
	assert(cdesc->num_vars == NUM_TESTVARS);
	/* (void) printf("done\n"); */
	
	/*	GATTR	*/
	/* (void) printf("GATTR "); */

	assert( nc_inq_attname(id, NC_GLOBAL, 0, adesc->mnem) == 0);
	assert(strcmp("TITLE",adesc->mnem) == 0);
	assert( nc_inq_att(id, NC_GLOBAL, adesc->mnem, &(adesc->type), &(adesc->len))== NC_NOERR);
	assert( adesc->type == NC_CHAR );
	assert( adesc->len == strlen(fname) );
	assert( nc_get_att_text(id, NC_GLOBAL, "TITLE", buf)== NC_NOERR);
	buf[adesc->len] = 0;
	assert( strcmp(fname, buf) == 0);

	/*	VAR	*/
	/* (void) printf("VAR "); */
	assert( cdesc->num_vars == NUM_TESTVARS );

	for(ii = 0; ii < cdesc->num_vars; ii++, tvp++ ) 
	{
		int jj;
		assert( nc_inq_var(id, ii,
			vdesc->mnem,
			&(vdesc->type),
			&(vdesc->ndims),
			vdesc->dims,
			&(vdesc->num_attrs)) == NC_NOERR);
		if(strcmp(tvp->mnem , vdesc->mnem) != 0)
		{
			(void) printf("attr %d mnem mismatch %s, %s\n",
				ii, tvp->mnem, vdesc->mnem);
			continue;
		}
		if(tvp->type != vdesc->type)
		{
			(void) printf("attr %d type mismatch %d, %d\n",
				ii, (int)tvp->type, (int)vdesc->type);
			continue;
		}
		for(jj = 0; jj < vdesc->ndims; jj++ )
		{
			if(tvp->dims[jj] != vdesc->dims[jj] )
			{
		(void) printf(
		"inconsistent dim[%d] for variable %d: %d != %d\n",
		jj, ii, tvp->dims[jj], vdesc->dims[jj] );
			continue;
			}
		}

		/* VATTR */
		/* (void) printf("VATTR\n"); */
		for(jj=0; jj<vdesc->num_attrs; jj++ ) 
		{
			assert( nc_inq_attname(id, ii, jj, adesc->mnem) == NC_NOERR);
			if( strcmp(adesc->mnem, reqattr[jj]) != 0 )
			{
				(void) printf("var %d attr %d mismatch %s != %s\n",
					ii, jj, adesc->mnem, reqattr[jj] );
				break;
			}
		}

		if( nc_inq_att(id, ii, reqattr[0], &(adesc->type), &(adesc->len))
			!= -1) {
		assert( adesc->type == NC_CHAR );
		assert( adesc->len == strlen(tvp->units) );
	 	assert( nc_get_att_text(id,ii,reqattr[0],buf)== NC_NOERR); 
		buf[adesc->len] = 0;
		assert( strcmp(tvp->units, buf) == 0);
		}

		if(
			nc_inq_att(id, ii, reqattr[1], &(adesc->type), &(adesc->len))
			!= -1)
		{
		assert( adesc->type == NC_DOUBLE );
		assert( adesc->len == 1 );
	 	assert( nc_get_att_double(id, ii, reqattr[1], &got.dbl)== NC_NOERR);
		chkgot(adesc->type, got, tvp->validmin);
		}

		if(
			nc_inq_att(id, ii, reqattr[2], &(adesc->type), &(adesc->len))
			!= -1)
		{
		assert( adesc->type == NC_DOUBLE );
		assert( adesc->len == 1 );
	 	assert( nc_get_att_double(id, ii, reqattr[2], &got.dbl)== NC_NOERR);
		chkgot(adesc->type, got, tvp->validmax);
		}

		if(
			nc_inq_att(id, ii, reqattr[3], &(adesc->type), &(adesc->len))
			!= -1)
		{
		assert( adesc->type == NC_DOUBLE );
		assert( adesc->len ==1 );
	 	assert( nc_get_att_double(id, ii, reqattr[3], &got.dbl)== NC_NOERR);
		chkgot(adesc->type, got, tvp->scalemin);
		}

		if(
			nc_inq_att(id, ii, reqattr[4], &(adesc->type), &(adesc->len))
			!= -1)
		{
		assert( adesc->type == NC_DOUBLE );
		assert( adesc->len == 1 );
	 	assert( nc_get_att_double(id, ii, reqattr[4], &got.dbl)== NC_NOERR);
		chkgot(adesc->type, got, tvp->scalemax);
		}

		if( nc_inq_att(id, ii, reqattr[5], &(adesc->type), &(adesc->len))== NC_NOERR)
		{
		assert( adesc->type == NC_CHAR );
		assert( adesc->len == strlen(tvp->fieldnam) );
	 	assert( nc_get_att_text(id,ii,reqattr[5],buf)== NC_NOERR); 
		buf[adesc->len] = 0;
		assert( strcmp(tvp->fieldnam, buf) == 0);
		}
	}

	/* (void) printf("fill_seq "); */
	check_fill_seq(id);
	/* (void) printf("Done\n"); */

	assert( nc_get_var1_double(id, Double_id, indices[0], &got.dbl)== NC_NOERR);
	/* (void) printf("got val = %f\n", got.dbl ); */

	assert( nc_get_var1_double(id, Double_id, indices[1], &got.dbl)== NC_NOERR);
	/* (void) printf("got val = %f\n", got.dbl ); */

	assert( nc_get_var1_float(id, Float_id, indices[2], &got.fl[0])== NC_NOERR);
	/* (void) printf("got val = %f\n", got.fl[0] ); */

	assert( nc_get_var1_int(id, Long_id, indices[3], &got.in[0])== NC_NOERR);
	/* (void) printf("got val = %d\n", got.in[0] ); */

	assert( nc_get_var1_short(id, Short_id, indices[4], &got.sh[0])== NC_NOERR);
	/* (void) printf("got val = %d\n", got.sh[0] ); */

	assert( nc_get_var1_text(id, Char_id, indices[5], &got.by[0]) == NC_NOERR);
	/* (void) printf("got NC_CHAR val = %c (0x%02x) \n", */
		 /* got.by[0] , got.by[0]); */

	assert( nc_get_var1_text(id, Char_id, indices[6], &got.by[0]) == NC_NOERR);
	/* (void) printf("got NC_CHAR val = %c (0x%02x) \n", */
	/* 	 got.by[0], got.by[0] ); */

	(void) memset(buf,0,sizeof(buf));
	assert( nc_get_vara_text(id, Char_id, s_start, s_edges, buf) == NC_NOERR);
	/* (void) printf("got NC_CHAR val = \"%s\"\n", buf); */

	assert( nc_get_var1_schar(id, Byte_id, indices[5],
			(signed char *)&got.by[0])== NC_NOERR);
	/* (void) printf("got val = %c (0x%02x) \n", got.by[0] , got.by[0]); */

	assert( nc_get_var1_schar(id, Byte_id, indices[6],
			(signed char *)&got.by[0])== NC_NOERR);
	/* (void) printf("got val = %c (0x%02x) \n", got.by[0], got.by[0] ); */

	(void) memset(buf,0,sizeof(buf));
	assert( nc_get_vara_schar(id, Byte_id, s_start, s_edges,
			(signed char *)buf)== NC_NOERR );
	/* (void) printf("got val = \"%s\"\n", buf); */

	{
		double dbuf[NUM_RECS * SIZE_1 * SIZE_2];
		assert(nc_get_var_double(id, Float_id, dbuf) == NC_NOERR);
		/* (void) printf("got vals = %f ... %f\n", dbuf[0], */
		/* 	 dbuf[NUM_RECS * SIZE_1 * SIZE_2 -1] ); */
	}

	ret = nc_close(id);
	/* (void) printf("re nc_close ret = %d\n", ret); */

#ifdef USE_PNETCDF
	MPI_Finalize();
#endif
	return 0;
}
示例#4
0
int
nc_open(const char *path, int mode, int *ncidp)
{
    return THROW(nc__open(path, mode, NULL, ncidp));
}