mirror of
https://github.com/Unidata/netcdf-c.git
synced 2024-11-21 03:13:42 +08:00
114 lines
3.3 KiB
C
114 lines
3.3 KiB
C
/*
|
|
Copyright 2018, UCAR/Unidata
|
|
See COPYRIGHT file for copying and redistribution conditions.
|
|
|
|
This is part of netCDF.
|
|
|
|
This program tests for a bug discovered with nofill mode that failed
|
|
only on file systems with block size in a particular range. This version
|
|
of the test showed failure using a normal nc_create() call rather than
|
|
a special nc__create() call to change the blksize.
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <nc_tests.h>
|
|
#include "err_macros.h"
|
|
#include <stdio.h>
|
|
#include <limits.h>
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include <netcdf.h>
|
|
|
|
#define FILE_NAME "tst_nofill3.nc"
|
|
#define TIME_LEN 1
|
|
/* Change any of these values and the bug doesn't happen or requires a
|
|
* larger disk block size (set with the "chunksize" parameter to
|
|
* nc__create()) to see. Similarly, adding attributes or additional
|
|
* variables will either make the bug go away or require a larger disk
|
|
* block size to observe. But not just any larger disk block size; it
|
|
* will have to be in a relatively narrow range. */
|
|
#define LON_LEN 11
|
|
#define LAT_LEN 11
|
|
#define LVL_LEN 34
|
|
|
|
int
|
|
create_file(char *file_name, int fill_mode)
|
|
{
|
|
int ncid;
|
|
int lon_dim, lat_dim, lvl_dim, time_dim;
|
|
int time_id, zonal_wnd_id;
|
|
int i;
|
|
|
|
/* rank (number of dimensions) for each variable */
|
|
# define RANK_time 1
|
|
# define RANK_zonal_wnd 3
|
|
|
|
/* variable shapes */
|
|
int zonal_wnd_dims[RANK_zonal_wnd];
|
|
size_t zonal_wnd_start[RANK_zonal_wnd];
|
|
size_t zonal_wnd_count[RANK_zonal_wnd];
|
|
float zonal_wnd[LON_LEN*LAT_LEN];
|
|
int time[TIME_LEN];
|
|
|
|
for(i = 0; i < TIME_LEN; i++) {
|
|
time[i] = 1;
|
|
}
|
|
if (nc_create(file_name, NC_CLOBBER, &ncid)) ERR;
|
|
if (nc_set_fill(ncid, fill_mode, NULL)) ERR;
|
|
|
|
/* define dimensions */
|
|
if (nc_def_dim(ncid, "lon", LON_LEN, &lon_dim)) ERR;
|
|
if (nc_def_dim(ncid, "lat", LAT_LEN, &lat_dim)) ERR;
|
|
if (nc_def_dim(ncid, "lvl", LVL_LEN, &lvl_dim)) ERR;
|
|
if (nc_def_dim(ncid, "time", TIME_LEN, &time_dim)) ERR;
|
|
|
|
/* define variables */
|
|
if (nc_def_var(ncid, "time", NC_INT, RANK_time, &time_dim, &time_id)) ERR;
|
|
|
|
zonal_wnd_dims[0] = lvl_dim;
|
|
zonal_wnd_dims[1] = lat_dim;
|
|
zonal_wnd_dims[2] = lon_dim;
|
|
if (nc_def_var(ncid, "zonal_wnd", NC_FLOAT, RANK_zonal_wnd, zonal_wnd_dims, &zonal_wnd_id)) ERR;
|
|
|
|
if (nc_enddef (ncid)) ERR;
|
|
if (nc_put_var_int(ncid, time_id, time)) ERR;
|
|
/* Bug exposed when last value written. */
|
|
{
|
|
int izw;
|
|
|
|
i = LVL_LEN - 1;
|
|
for(izw = 0; izw < LAT_LEN * LON_LEN; izw++) {
|
|
zonal_wnd[izw] = 100 + i;
|
|
}
|
|
zonal_wnd_start[0] = i;
|
|
zonal_wnd_start[1] = 0;
|
|
zonal_wnd_start[2] = 0;
|
|
zonal_wnd_count[0] = 1;
|
|
zonal_wnd_count[1] = LAT_LEN;
|
|
zonal_wnd_count[2] = LON_LEN;
|
|
if (nc_put_vara_float(ncid, zonal_wnd_id, zonal_wnd_start, zonal_wnd_count, zonal_wnd)) ERR;
|
|
}
|
|
if (nc_close(ncid)) ERR;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
printf("\n*** Testing nofill mode.\n");
|
|
printf("*** Create file in nofill mode using nc_create()...");
|
|
{
|
|
int ncid, varid;
|
|
int data[TIME_LEN];
|
|
|
|
if (create_file(FILE_NAME, NC_NOFILL)) ERR;
|
|
if (nc_open(FILE_NAME, 0, &ncid)) ERR;
|
|
if (nc_inq_varid(ncid, "time", &varid)) ERR;
|
|
if (nc_get_var(ncid, varid, data)) ERR;
|
|
if (data[0] != 1) ERR; /* value overwritten by zero due to NOFILL bug */
|
|
if (nc_close(ncid)) ERR;
|
|
}
|
|
SUMMARIZE_ERR;
|
|
FINAL_RESULTS;
|
|
}
|