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101 lines
3.1 KiB
C
101 lines
3.1 KiB
C
/* This is part of the netCDF package.
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Copyright 2018 University Corporation for Atmospheric Research/Unidata
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See COPYRIGHT file for conditions of use.
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Test large file problems reported by user. This test based on code
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contributed by Kari Hoijarvi. Thanks Kari!
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$Id: tst_large2.c,v 1.1 2010/04/14 19:36:19 ed Exp $
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*/
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#include <nc_tests.h>
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#include "err_macros.h"
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#include "netcdf.h"
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#define FILE_NAME "tst_large2.nc"
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#define NUMDIMS 2 /* rank of each variable in tests */
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#define DIM1 2048
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#define DIM2 2097153 /* DIM1*DIM2*sizeof(char) > 2**32 */
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int main(int argc, char **argv)
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{
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printf("\n*** Testing netcdf-4 large files.\n");
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printf("**** testing with user-contributed test...\n");
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{
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#define TIME_LEN 3000
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#define LAT_LEN 1000
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#define LON_LEN 2000
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#define NDIMS 3
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#define VAR_NAME "the_big_enchilada"
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#define NUM_FORMATS 2
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int ncid, varid;
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int dimids[NDIMS];
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size_t start[NDIMS] = {0, 0, 0};
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size_t count[NDIMS] = {1, LAT_LEN, LON_LEN};
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char file_name[NC_MAX_NAME * 2 + 1];
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float *data;
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int this_format[NUM_FORMATS] = {NC_64BIT_OFFSET, NC_NETCDF4};
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char format_name[NUM_FORMATS][NC_MAX_NAME + 1] =
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{"64-bit offset", "netCDF-4"};
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int i, j, f;
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printf("sizes: int - %ld, size_t - %ld, and int * - %ld\n",
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sizeof(int), sizeof(size_t), sizeof(int *));
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/* Allocate room for one slab of data. */
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if (!(data = calloc(LAT_LEN * LON_LEN, sizeof(float)))) ERR;
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/* Create a file with one big variable. */
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for (f = 0; f < NUM_FORMATS; f++)
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{
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printf("\t...testing with %s\n", format_name[f]);
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snprintf(file_name, sizeof(file_name), "%s/%s", TEMP_LARGE, FILE_NAME);
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if (nc_create(file_name, this_format[f], &ncid)) ERR;
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if (nc_def_dim(ncid, "lat", LAT_LEN, &dimids[1])) ERR;
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if (nc_def_dim(ncid, "lon", LON_LEN, &dimids[2])) ERR;
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if (nc_def_dim(ncid, "time", TIME_LEN, &dimids[0])) ERR;
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if (nc_def_var(ncid, VAR_NAME, NC_FLOAT, 3, dimids, &varid)) ERR;
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if (nc_close(ncid)) ERR;
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/* Reopen the file and add data. */
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if (nc_open(file_name, NC_WRITE, &ncid)) ERR;
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for (start[0] = 0; start[0] < TIME_LEN; start[0]++)
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{
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/* Initialize this slab of data. */
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for (i = 0; i < LAT_LEN; i++)
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for (j = 0; j < LON_LEN; j++)
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data[j + LON_LEN * i] = (start[0] + i + j) % 19;
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/* Write the slab. */
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if (nc_put_vara_float(ncid, varid, start, count, data)) ERR;
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}
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if (nc_close(ncid)) ERR;
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/* Reopen and check the file. */
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if (nc_open(file_name, NC_NOWRITE, &ncid)) ERR;
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if (nc_inq_varid(ncid, VAR_NAME, &varid)) ERR;
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for (start[0] = 0; start[0] < TIME_LEN; start[0]++)
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{
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if (nc_get_vara_float(ncid, varid, start, count, data)) ERR;
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for (i = 0; i < LAT_LEN; i++)
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for (j = 0; j < LON_LEN; j++)
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{
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if (data[j + LON_LEN * i] != (start[0] + i + j) % 19)
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{
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printf("error on start[0]: %ld i: %d j: %d expected %ld got %g\n",
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start[0], i, j, (start[0] + i + j), data[j + LON_LEN * i]);
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ERR_RET;
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}
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}
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} /* next slab to read */
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} /* next format*/
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/* Release our memory. */
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free(data);
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}
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SUMMARIZE_ERR;
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FINAL_RESULTS;
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}
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