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127 lines
3.7 KiB
C
127 lines
3.7 KiB
C
/*
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Copyright 2018, UCAR/Unidata
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See COPYRIGHT file for copying and redistribution conditions.
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This program tests a large file bug on 32-bit platforms in versions
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previous to netCDF-4.1.2, writing to a record variable with more
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than 2 dimensions and more than 2**32 values per record, where the
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write starts after the first 2**32 values in a record for that
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variable.
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$Id: tst_big_rvar.c,v 1.2 2010/05/21 15:20:26 russ 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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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#define FILE_NAME "tst_big_rvar.nc"
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/* Test with both classic and 64-bit offset files. If netcdf-4 is
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* included, test with both netCDF-4 format variants also. */
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/* #ifdef USE_HDF5 */
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/* #define NUM_FORMATS (4) */
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/* #else */
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/* #define NUM_FORMATS (2) */
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/* #endif */
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#define NUM_FORMATS (2)
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#define NUMDIMS 4 /* rank of variable in tests */
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#define DIMR NC_UNLIMITED
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#define DIM1 2149 /* just big enough to demonstrate bug */
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#define DIM2 1000
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#define DIM3 2000 /* DIM1*DIM2*DIM3 > 2**32 */
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static int
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test_big_var(const char *testfile)
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{
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int ncid, varid, dimids[NUMDIMS];
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size_t start[NUMDIMS] = {0, 0, 0, 0};
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size_t count[NUMDIMS] = {1, 1, DIM2, DIM3};
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signed char data[DIM2][DIM3];
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int i, j;
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int nerrs = 0;
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/* Create a file with one big record variable. */
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if (nc_create(testfile, NC_CLOBBER, &ncid)) ERR;
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if (nc_set_fill(ncid, NC_NOFILL, NULL)) ERR;
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if (nc_def_dim(ncid, "rec", DIMR, &dimids[0])) ERR;
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if (nc_def_dim(ncid, "dim1", DIM1, &dimids[1])) ERR;
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if (nc_def_dim(ncid, "dim2", DIM2, &dimids[2])) ERR;
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/* if (nc_def_dim(ncid, "dim3", DIM3 - 1, &dimids[1])) ERR; */
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if (nc_def_dim(ncid, "dim3", DIM3, &dimids[3])) ERR;
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if (nc_def_var(ncid, "var", NC_BYTE, NUMDIMS, dimids, &varid)) ERR;
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if (nc_enddef(ncid)) ERR;
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/* Initialize slab of data. */
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for (i = 0; i < DIM2; i++)
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for (j = 0; j < DIM3; j++) {
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data[i][j] = (i + j) % 16;
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}
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/* Just write the first and last slabs */
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start[1] = 0;
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if (nc_put_vara_schar(ncid, varid, start, count, &data[0][0])) ERR;
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start[1] = DIM1 - 1;
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if (nc_put_vara_schar(ncid, varid, start, count, &data[0][0])) ERR;
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if (nc_close(ncid)) ERR;
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/* Open the file and check it. */
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if (nc_open(testfile, NC_NOWRITE, &ncid)) ERR;
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if (nc_inq_varid(ncid, "var", &varid)) ERR;
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/* Read and check data in the first and last slabs */
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start[1] = 0;
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if (nc_get_vara_schar(ncid, varid, start, count, &data[0][0])) ERR;
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for (i = 0; i < DIM2; i++)
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for (j = 0; j < DIM3; j++)
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{
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if (data[i][j] != (signed char)((i + j) % 16))
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{
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printf("error on start[0]: %ld i: %d j: %d expected %d got %d\n",
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start[0], i, j, (i + j) % 16, data[i][j]);
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ERR;
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if(nerrs++ > 2)
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return nerrs;
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}
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}
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start[1] = DIM1 - 1;
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if (nc_get_vara_schar(ncid, varid, start, count, &data[0][0])) ERR;
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for (i = 0; i < DIM2; i++)
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for (j = 0; j < DIM3; j++)
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{
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if (data[i][j] != (signed char)((i + j) % 16))
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{
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printf("error on start[0]: %ld i: %d j: %d expected %d got %d\n",
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start[0], i, j, (i + j) % 16, data[i][j]);
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ERR;
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if(nerrs++ > 2)
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return nerrs;
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}
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}
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if (nc_close(ncid)) ERR;
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return 0;
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}
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int
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main(int argc, char **argv) {
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int i;
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char testfile[NC_MAX_NAME + 1];
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printf("\n*** Testing files with multidimensional variable with more than 2**32 values\n");
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snprintf(testfile, sizeof(testfile), "%s/%s", TEMP_LARGE, FILE_NAME);
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for (i = NC_FORMAT_CLASSIC; i <= NUM_FORMATS; i++)
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{
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printf("*** testing format %d file with record variable with > 2**32 values...", i);
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nc_set_default_format(i, NULL);
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test_big_var(testfile);
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(void) remove(testfile);
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SUMMARIZE_ERR;
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}
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FINAL_RESULTS;
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}
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