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netcdf-c/nc_test4/tst_dims3.c
Dennis Heimbigner aabbdbf64c Make public a limited API for programmatic access to internal .rc tables 
re: https://github.com/Unidata/netcdf-c/issues/2337
re: https://github.com/Unidata/netcdf-c/issues/2407

Add two functions to netcdf.h to allow programs to get/set
selected entries into the internal .rc tables. This should fix
the above issues by allowing HTTP.CAINFO to be set to the
certificates directory.  Note that the changes should be
performed as early as possible in the program because some of
the .rc table entries may get cached internally and changing the
entry after that caching occurs may have no effect.

The new signatures are as follows:

1. Get the value of a simple .rc entry of the form "key=value".
Note that caller must free the returned value, which might be NULL.
````
char* nc_rc_get(char* const * key);

@param key table entry key
@return value if .rc table has entry of the form key=value
@return NULL if no such entry is found.
````

2. Insert/Overwrite the specified key=value pair in the .rc table.
````
int nc_rc_set(const char* key, const char* value);

@param key table entry key -- may not be NULL
@param value table entry value -- may not be NULL
@return NC_NOERR if no error
@return NC_EINVAL if error
````

Addendum:

re: https://github.com/Unidata/netcdf-c/issues/2407

Modify dhttp.c to use the .rc entry HTTP.CAINFO if defined.
2022-06-17 14:35:12 -06:00

496 lines
18 KiB
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/* This is part of the netCDF package. Copyright 2018 University
Corporation for Atmospheric Research/Unidata See COPYRIGHT file for
conditions of use. See www.unidata.ucar.edu for more info.
Test netcdf-4 dimensions inheritance, and dims with and without
coordinate variables.
Ed Hartnett
*/
#include <config.h>
#include <nc_tests.h>
#include "err_macros.h"
#define NDIM1 1
#define NDIM2 2
#define DATALEN2 2
#define VAR_NAME "var"
#define DIM_NAME1 "y"
#define DIM_NAME2 "x"
#define NY 3
#define NX 3
#define DIM_LEN 2
#define FILE_NAME "tst_dims3.nc"
int
main(int argc, char **argv)
{
printf("\n*** Testing netcdf-4 dimensions even more.\n");
printf("*** testing netcdf-4 dimension inheritance...");
{
#define RANK_time 1
#define GRP_NAME "G"
#define GRP2_NAME "G2"
#define TIME_NAME "time"
#define VAR2_NAME "z"
#define TIME_RANK 1
#define NUM_TIMES 2
#define LEV_NAME "level"
#define VRT_NAME "vert_number"
#define LEV_NUM 3
#define LEV_RANK 1
#define VRT_RANK 1
#define VAR2_RANK 2
#define NUM_VRT 3
int ncid, grpid;
int time_dim, time_dim_in;
int time_var, z_var;
size_t len;
int time_data[NUM_TIMES] = {1, 2} ;
size_t time_startset[TIME_RANK] = {0} ;
size_t time_countset[TIME_RANK] = {NUM_TIMES} ;
/* Create file with unlimited dim and associated coordinate
* variable in root group, another variable that uses unlimited
* dim in subgroup. */
if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
if (nc_def_grp(ncid, GRP_NAME, &grpid)) ERR;
if (nc_def_dim(ncid, TIME_NAME, NC_UNLIMITED, &time_dim)) ERR;
if (nc_def_var(ncid, TIME_NAME, NC_INT, TIME_RANK, &time_dim,
&time_var)) ERR;
if (nc_def_var(grpid, VAR2_NAME, NC_INT, TIME_RANK, &time_dim,
&z_var)) ERR;
if (nc_enddef(ncid)) ERR;
/* Assign data to time variable, creating two times */
if (nc_put_vara(ncid, time_dim, time_startset, time_countset,
time_data)) ERR;
/* Check the dim len from the root group */
if (nc_inq_dimlen(ncid, time_dim, &len)) ERR;
if (len != NUM_TIMES) ERR;
/* Check the dim len from the sub group */
if (nc_inq_dimlen(grpid, time_dim, &len)) ERR;
if (len != NUM_TIMES) ERR;
if (nc_close(ncid)) ERR;
/* Now check how many times there are from the subgroup */
if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
if (nc_inq_ncid(ncid, GRP_NAME, &grpid)) ERR;
if (nc_inq_dimid(ncid, TIME_NAME, &time_dim)) ERR;
/* Check the dim len from the root group */
if (nc_inq_dimlen(ncid, time_dim, &len)) ERR;
if (len != NUM_TIMES) ERR;
/* Check the dim len from the sub group */
if (nc_inq_dimlen(grpid, time_dim, &len)) ERR;
if (len != NUM_TIMES) ERR;
/* Find the dimension by name. */
if (nc_inq_dimid(grpid, TIME_NAME, &time_dim_in)) ERR;
if (time_dim_in != time_dim) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("*** testing a scalar coordinate dimension...");
{
int ncid, dimid, varid;
float data = 42.5;
/* Create a scalar coordinate dimension. The only reason that
* the user can ever possibly have for doing this is just
* because they like to make life difficult for poor, poor
* netCDF programmers, trapped in this horrible place, in a
* Rocky Mountain valley, drenched in sunlight, with a stream
* quietly gurgling, deer feeding on the grasses, and all those
* damn birds chirping! */
if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR_RET;
if (nc_def_dim(ncid, "scalar", 0, &dimid)) ERR_RET;
if (nc_def_var(ncid, "scalar", NC_FLOAT, 0, &dimid, &varid)) ERR_RET;
if (nc_put_var_float(ncid, varid, &data)) ERR_RET;
if (nc_close(ncid))
ERR_RET;
}
SUMMARIZE_ERR;
printf("*** testing defining dimensions and coord variables in different orders in root group...");
{
int ncid, grpid, grp2id;
int time_dimid, lev_dimid, g2lev_dimid, g2vrt_dimid;
int time_dimid_in, lev_dimid_in, g2lev_dimid_in, g2vrt_dimid_in;
int time_varid, lev_varid, gvar2_varid, g2lev_varid, g2vrt_varid;
int var2_dims[VAR2_RANK];
/* Create test for fix of bug that resulted in two dimensions
* having the same dimid, which violates the Pauli exclusion
* principle for dimensions. */
if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR_RET;
if (nc_def_grp(ncid, GRP_NAME, &grpid)) ERR;
if (nc_def_dim(ncid, TIME_NAME, NC_UNLIMITED, &time_dimid)) ERR_RET;
if (nc_def_dim(ncid, LEV_NAME, LEV_NUM, &lev_dimid)) ERR_RET;
var2_dims[0] = time_dimid;
var2_dims[1] = lev_dimid;
if (nc_def_var(grpid, VAR2_NAME, NC_FLOAT, VAR2_RANK, var2_dims, &gvar2_varid)) ERR;
/* define coord vars in opposite order of coord dims */
if (nc_def_var(ncid, LEV_NAME, NC_FLOAT, LEV_RANK, &lev_dimid, &lev_varid)) ERR;
if (nc_def_var(ncid, TIME_NAME, NC_FLOAT, TIME_RANK, &time_dimid, &time_varid)) ERR;
if (nc_def_grp(ncid, GRP2_NAME, &grp2id)) ERR;
if (nc_def_dim(grp2id, LEV_NAME, LEV_NUM, &g2lev_dimid)) ERR_RET;
if (nc_def_dim(grp2id, VRT_NAME, NUM_VRT, &g2vrt_dimid)) ERR_RET;
if (nc_def_var(grp2id, LEV_NAME, NC_FLOAT, LEV_RANK, &g2lev_dimid, &g2lev_varid)) ERR;
if (nc_def_var(grp2id, VRT_NAME, NC_FLOAT, VRT_RANK, &g2vrt_dimid, &g2vrt_varid)) ERR;
if (nc_close(ncid)) ERR;
/* Re-open, in which dimids may get reassigned */
if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
if (nc_inq_dimid(ncid, TIME_NAME, &time_dimid_in)) ERR;
if (nc_inq_dimid(ncid, LEV_NAME, &lev_dimid_in)) ERR;
if (nc_inq_ncid(ncid, GRP2_NAME, &grp2id)) ERR;
if (nc_inq_dimid(grp2id, LEV_NAME, &g2lev_dimid_in)) ERR;
if (nc_inq_dimid(grp2id, VRT_NAME, &g2vrt_dimid_in)) ERR;
/* dimids must still all be distinct */
if (time_dimid_in == lev_dimid_in ||
time_dimid_in == g2lev_dimid_in ||
time_dimid_in == g2vrt_dimid_in ||
lev_dimid_in == g2lev_dimid_in ||
lev_dimid_in == g2vrt_dimid_in ||
g2lev_dimid_in == g2vrt_dimid_in) ERR;
if (nc_close(ncid))
ERR_RET;
}
SUMMARIZE_ERR;
printf("*** testing defining dimensions and coord variables in different orders in subgroup...");
{
int ncid, grpid, grp2id;
int time_dimid, lev_dimid, g2lev_dimid, g2vrt_dimid;
int time_dimid_in, lev_dimid_in, g2lev_dimid_in, g2vrt_dimid_in;
int time_varid, lev_varid, gvar2_varid, g2lev_varid, g2vrt_varid;
int var2_dims[VAR2_RANK];
/* Create test for fix of bug inside a subgroup that results in two dimensions
* having the same dimid. */
if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR_RET;
if (nc_def_grp(ncid, GRP_NAME, &grpid)) ERR;
if (nc_def_dim(ncid, TIME_NAME, NC_UNLIMITED, &time_dimid)) ERR_RET;
if (nc_def_dim(ncid, LEV_NAME, LEV_NUM, &lev_dimid)) ERR_RET;
var2_dims[0] = time_dimid;
var2_dims[1] = lev_dimid;
if (nc_def_var(grpid, VAR2_NAME, NC_FLOAT, VAR2_RANK, var2_dims, &gvar2_varid)) ERR;
if (nc_def_var(ncid, TIME_NAME, NC_FLOAT, TIME_RANK, &time_dimid, &time_varid)) ERR;
if (nc_def_var(ncid, LEV_NAME, NC_FLOAT, LEV_RANK, &lev_dimid, &lev_varid)) ERR;
if (nc_def_grp(ncid, GRP2_NAME, &grp2id)) ERR;
if (nc_def_dim(grp2id, LEV_NAME, LEV_NUM, &g2lev_dimid)) ERR_RET;
if (nc_def_dim(grp2id, VRT_NAME, NUM_VRT, &g2vrt_dimid)) ERR_RET;
/* define coord vars in opposite order of coord dims */
if (nc_def_var(grp2id, VRT_NAME, NC_FLOAT, VRT_RANK, &g2vrt_dimid, &g2vrt_varid)) ERR;
if (nc_def_var(grp2id, LEV_NAME, NC_FLOAT, LEV_RANK, &g2lev_dimid, &g2lev_varid)) ERR;
if (nc_close(ncid)) ERR;
/* Re-open, in which dimids may get reassigned */
if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
if (nc_inq_dimid(ncid, TIME_NAME, &time_dimid_in)) ERR;
if (nc_inq_dimid(ncid, LEV_NAME, &lev_dimid_in)) ERR;
if (nc_inq_ncid(ncid, GRP2_NAME, &grp2id)) ERR;
if (nc_inq_dimid(grp2id, LEV_NAME, &g2lev_dimid_in)) ERR;
if (nc_inq_dimid(grp2id, VRT_NAME, &g2vrt_dimid_in)) ERR;
/* dimids must still all be distinct */
if (time_dimid_in == lev_dimid_in ||
time_dimid_in == g2lev_dimid_in ||
time_dimid_in == g2vrt_dimid_in ||
lev_dimid_in == g2lev_dimid_in ||
lev_dimid_in == g2vrt_dimid_in ||
g2lev_dimid_in == g2vrt_dimid_in) ERR;
if (nc_close(ncid))
ERR_RET;
}
SUMMARIZE_ERR;
printf("*** testing var and unlim dim with same name, but not related...");
{
/* This test code based on test code from Jeff Whitaker. See
* https://github.com/Unidata/netcdf4-python/issues/975 and
* https://github.com/Unidata/netcdf-c/issues/1496. */
int ncid, timesubset_id, time_id, timevar_id, dummyvar_id;
size_t start[1] = {0};
size_t count[1] = {1};
double data[1] = {TEST_VAL_42};
size_t len;
double data_in;
if (nc_create(FILE_NAME, NC_CLOBBER | NC_NETCDF4, &ncid)) ERR;
if (nc_def_dim(ncid, "time", NC_UNLIMITED, &time_id)) ERR;
if (nc_def_dim(ncid, "time_subset", 50, &timesubset_id)) ERR;
/* Define vars. */
if (nc_def_var(ncid, "time", NC_DOUBLE, 1, &timesubset_id, &timevar_id)) ERR;
if (nc_def_var(ncid, "dummy", NC_DOUBLE, 1, &time_id, &dummyvar_id)) ERR;
if (nc_enddef(ncid)) ERR;
/* Write some data. */
if (nc_put_vara(ncid, dummyvar_id, start, count, data)) ERR;
/* Close the file. */
if (nc_close(ncid)) ERR;
/* Reopen file and check. */
if (nc_open(FILE_NAME, NC_WRITE, &ncid)) ERR;
if (nc_inq_dim(ncid, 0, NULL, &len)) ERR;
if (len != 1) ERR;
if (nc_get_vara_double(ncid, 1, start, count, &data_in)) ERR;
if (data_in != TEST_VAL_42) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("*** testing very simple case writing data with 2 unlim dims...");
{
/* This test code based on test code from Jeff Whitaker. See
* https://github.com/Unidata/netcdf4-python/issues/1413. This
* is a simplified version. */
int varid1, varid, ncid;
int dimids[NDIM2];
size_t start[1] = {0};
size_t count[1] = {NY};
int ydata[NY];
int y, i;
size_t len_in;
/* Fill Y data array. */
for (i = 0; i < NY; ++i)
ydata[i] = i;
/* Create a file. */
if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
/* Define two unlimited dims. */
if (nc_def_dim(ncid, DIM_NAME1, NC_UNLIMITED, &dimids[0])) ERR;
if (nc_def_dim(ncid, DIM_NAME2, NC_UNLIMITED, &dimids[1])) ERR;
/* Define coord var for first dim Y. */
if (nc_def_var(ncid, DIM_NAME1, NC_INT, 1, &dimids[0], &varid1)) ERR;
/* Define a data var with dims Y,X. */
if (nc_def_var(ncid, VAR_NAME, NC_INT, NDIM2, dimids, &varid)) ERR;
/* Write data to coordinate var to extend Y. */
if (nc_put_vara_int(ncid, varid1, start, count, ydata)) ERR;
if (nc_close(ncid)) ERR;
/* Reopen the file and check. */
if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
if (nc_inq_dimlen(ncid, 0, &len_in)) ERR;
if (len_in != NY) ERR;
if (nc_inq_dimlen(ncid, 1, &len_in)) ERR;
if (len_in != 0) ERR;
/* Read and check each value of the coordinate var. */
for (y = 0; y < NY; y++)
{
size_t index = y;
int data_in;
if (nc_get_var1_int(ncid, varid1, &index, &data_in)) ERR;
if (data_in != y) ERR;
}
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("*** testing simple case writing data with 2 unlim dims...");
{
/* This test code based on test code from Jeff Whitaker. See
* https://github.com/Unidata/netcdf4-python/issues/1413. This
* is a simplified version. */
int varid1, varid, ncid;
int dimids[NDIM2];
size_t start[1] = {0};
size_t count[1] = {NY};
size_t start2[NDIM2] = {0, 2};
size_t count2[NDIM2] = {1, 1};
int ydata[NY];
int data = TEST_VAL_42;
int x, y, i;
/* Fill Y data array. */
for (i = 0; i < NY; ++i)
ydata[i] = i;
/* Create a file. */
if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
/* Define two unlimited dims. */
if (nc_def_dim(ncid, DIM_NAME1, NC_UNLIMITED, &dimids[0])) ERR;
if (nc_def_dim(ncid, DIM_NAME2, NC_UNLIMITED, &dimids[1])) ERR;
/* Define coord var for first dim Y. */
if (nc_def_var(ncid, DIM_NAME1, NC_INT, 1, &dimids[0], &varid1)) ERR;
/* Define a data var with dims Y,X. */
if (nc_def_var(ncid, VAR_NAME, NC_INT, NDIM2, dimids, &varid)) ERR;
/* Write data to coordinate var to extend Y. */
if (nc_put_vara_int(ncid, varid1, start, count, ydata)) ERR;
if (nc_sync(ncid)) ERR;
/* write a single data point to the 2d variable */
if (nc_put_vara_int(ncid, varid, start2, count2, &data)) ERR;
if (nc_close(ncid)) ERR;
/* Reopen the file and check. */
if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
/* Read and check each value with nc_get_var1_int(). */
for (x = 0; x < NX; x++)
{
for (y = 0; y < NY; y++)
{
size_t index[NDIM2] = {y, x};
int data_in;
if (nc_get_var1_int(ncid, varid, index, &data_in)) ERR;
if (y == start2[0] && x == start2[1])
{
if (data_in != data) ERR;
}
else
{
if (data_in != NC_FILL_INT) ERR;
}
}
}
/* Read and check each row with nc_get_vara_int(). */
for (y = 0; y < NY; y++)
{
size_t start_row[NDIM2] = {y, 0};
size_t count_row[NDIM2] = {1, NX};
int data_in[NX];
if (nc_get_vara_int(ncid, varid, start_row, count_row,
data_in)) ERR;
if (y == start2[0])
{
/* This row has data. */
for (x = 0; x < NX; x++)
if (data_in[x] != (x == start2[1] ? TEST_VAL_42 : NC_FILL_INT)) ERR;
}
else
{
/* This row is all fill. */
for (x = 0; x < NX; x++)
{
/* printf("y %d x %d data %d\n", y, x, data_in[x]); */
if (data_in[x] != NC_FILL_INT) ERR;
}
}
}
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("*** testing dimlen issue reported in 2357 by Jeff W...");
{
/* This test code based on test code from Jeff Whitaker. See
* https://github.com/Unidata/netcdf-c/issues/2357. This is a
* simplified version. */
int varid, ncid;
int dimids[NDIM2];
size_t start[NDIM2] = {0, 0}, count[NDIM2] = {DATALEN2, 1}, dimlen;
int data[DATALEN2] = {42, 42};
if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
if (nc_def_dim(ncid, "x", DATALEN2, &dimids[0])) ERR;
if (nc_def_dim(ncid, "t", NC_UNLIMITED, &dimids[1])) ERR;
if (nc_def_var(ncid, "v", NC_INT, NDIM2, dimids, &varid)) ERR;
if (nc_put_vara_int(ncid, varid, start, count, data)) ERR;
start[1] = 1;
if (nc_put_vara_int(ncid, varid, start, count, data)) ERR;
if (nc_close(ncid)) ERR;
/* Reopen file and add more data. */
if (nc_open(FILE_NAME, NC_WRITE, &ncid)) ERR;
start[1] = 2;
if (nc_put_vara_int(ncid, varid, start, count, data)) ERR;
if (nc_inq_dimlen(ncid, dimids[1], &dimlen)) ERR;
if (dimlen != 3) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("*** testing dimlen with NC_UNLIMITED reopen and rewrite...");
{
int varid, ncid;
int dimid;
size_t start[NDIM1] = {0}, count[NDIM1] = {DATALEN2}, dimlen;
int data[DATALEN2] = {42, 42};
int data2 = 99;
/* Create a file with unlimited dim and one var. */
if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
if (nc_def_dim(ncid, "Number_of_beaches", NC_UNLIMITED, &dimid)) ERR;
if (nc_def_var(ncid, "Paros", NC_INT, NDIM1, &dimid, &varid)) ERR;
if (nc_put_vara_int(ncid, varid, start, count, data)) ERR;
if (nc_inq_dimlen(ncid, dimid, &dimlen)) ERR;
if (dimlen != DATALEN2) ERR;
if (nc_close(ncid)) ERR;
/* Reopen file and change first element of array. */
if (nc_open(FILE_NAME, NC_WRITE, &ncid)) ERR;
count[0] = 1;
if (nc_put_vara_int(ncid, varid, start, count, &data2)) ERR;
if (nc_inq_dimlen(ncid, dimid, &dimlen)) ERR;
if (dimlen != 2) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("*** testing dimlen issue reported in 2357 by Jeff W...");
{
int i, dimidx, dimidt, varid, ncid;
int dimids[NDIM2];
size_t start[NDIM2], count[NDIM2], dimlen;
int data[DATALEN2];
if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
if (nc_def_dim(ncid, "x", DATALEN2, &dimidx)) ERR;
if (nc_def_dim(ncid, "t", NC_UNLIMITED, &dimidt)) ERR;
dimids[0] = dimidt; /* note order is now reversed */
dimids[1] = dimidx;
if (nc_def_var(ncid, "v", NC_INT, NDIM2, dimids, &varid)) ERR;
start[0]=0;
start[1]=0;
count[0]=1;
count[1]=DATALEN2;
for (i = 0; i < DATALEN2; i++)
data[i] = 1;
if (nc_put_vara_int(ncid, varid, start, count, data)) ERR;
start[0]=1;
start[1]=0;
count[0]=1;
count[1]=DATALEN2;
for (i = 0; i < DATALEN2; i++)
data[i] = 2;
if (nc_put_vara_int(ncid, varid, start, count, data)) ERR;
if (nc_close(ncid)) ERR;
/* Reopen the file. */
if (nc_open(FILE_NAME, NC_WRITE, &ncid)) ERR;
if (nc_inq_varid(ncid, "v", &varid)) ERR;
if (nc_inq_dimid(ncid, "t", &dimidt)) ERR;
start[0]=0;
start[1]=0;
count[0]=1;
count[1]=DATALEN2;
for (i = 0; i < DATALEN2; i++)
data[i] = 0;
if (nc_put_vara_int(ncid, varid, start, count, data)) ERR;
if (nc_inq_dimlen(ncid, dimidt, &dimlen)) ERR;
if (dimlen != DATALEN2) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
FINAL_RESULTS;
}
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