mirror of
https://github.com/Unidata/netcdf-c.git
synced 2024-12-21 08:39:46 +08:00
95 lines
3.3 KiB
C
95 lines
3.3 KiB
C
/*! \file
|
|
|
|
Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
|
|
2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
|
|
2015, 2016, 2017, 2018
|
|
University Corporation for Atmospheric Research/Unidata.
|
|
|
|
See \ref copyright file for more info.
|
|
|
|
*/
|
|
|
|
/* This program adds two new variables to an existing netCDF file.
|
|
* It is used to test if netCDF can correctly calculate the file offsets
|
|
* for the two new variables, in particular for files that align the
|
|
* fix-size variables to a boundary larger than 4 bytes, for instance
|
|
* a file created by PnetCDF with default alignment of 512 bytes.
|
|
*
|
|
* This program should run after tst_pnetcdf.c and takes the output file
|
|
* from tst_pnetcdf.c as input on the command-line.
|
|
*
|
|
* To check the file offsets for all variables, adding a printf statement is
|
|
* necessary in netcdf-4.3.3.1/libsrc/nc3internal.c around line 222,
|
|
* for example,
|
|
* printf("var %s: begin=%ld len=%ld end=%ld\n",(*vpp)->name->cp, (*vpp)->begin, (*vpp)->len, (*vpp)->begin+(*vpp)->len);
|
|
*
|
|
* Check the first new variable's begin to see whether it is less than
|
|
* the last variable's offset in the existing file.
|
|
*/
|
|
#include <config.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <netcdf.h>
|
|
|
|
#define ERR {if(err!=NC_NOERR){printf("Error at line=%d: %s\n", __LINE__, nc_strerror(err));nerrs++;}}
|
|
|
|
int main(int argc, char** argv) {
|
|
int i, j, err, nerrs=0, ncid, varid[5], dimid[2];
|
|
int old_buf[3][5], get_buf[3][5], new_buf[1024];
|
|
char *filename;
|
|
|
|
filename = argv[1];
|
|
if (argc == 1) filename = "tst_pnetcdf.nc";
|
|
|
|
err = nc_open(filename, NC_WRITE, &ncid); ERR
|
|
if (err != NC_NOERR) return 1;
|
|
|
|
/* read all fixed-size variables */
|
|
err = nc_inq_varid(ncid, "fixed_var_1", &varid[0]);
|
|
err = nc_inq_varid(ncid, "fixed_var_3", &varid[1]);
|
|
err = nc_inq_varid(ncid, "fixed_var_5", &varid[2]);
|
|
err = nc_get_var_int(ncid, varid[0], old_buf[0]); ERR
|
|
err = nc_get_var_int(ncid, varid[1], old_buf[1]); ERR
|
|
err = nc_get_var_int(ncid, varid[2], old_buf[2]); ERR
|
|
|
|
err = nc_redef(ncid); ERR
|
|
|
|
/* add 2 new dimensions */
|
|
err = nc_def_dim(ncid, "new_dim_1", 32, &dimid[0]); ERR
|
|
err = nc_def_dim(ncid, "new_dim_2", 32, &dimid[1]); ERR
|
|
|
|
/* add 2 new dimensions */
|
|
err = nc_def_var(ncid, "new_var1", NC_INT, 2, dimid, &varid[3]); ERR
|
|
err = nc_def_var(ncid, "new_var2", NC_FLOAT, 2, dimid, &varid[4]); ERR
|
|
err = nc_enddef(ncid); ERR
|
|
|
|
/* write more than 512 bytes (the default alignment used in PnetCDF) */
|
|
for (i=0; i<1024; i++) new_buf[i] = -1;
|
|
err = nc_put_var_int(ncid, varid[3], new_buf); ERR
|
|
|
|
/* read and check all variables from the original file */
|
|
err = nc_get_var_int(ncid, varid[0], get_buf[0]); ERR
|
|
err = nc_get_var_int(ncid, varid[1], get_buf[1]); ERR
|
|
err = nc_get_var_int(ncid, varid[2], get_buf[2]); ERR
|
|
|
|
for (i=0; i<3; i++) {
|
|
char varname[32];
|
|
snprintf(varname, sizeof(varname), "fixed_var_%d",2*i+1);
|
|
for (j=0; j<5; j++) {
|
|
if (get_buf[i][j] != old_buf[i][j]) {
|
|
printf("Error in %s line %d: expecting %s[%d]=%d but got %d\n",
|
|
__FILE__,__LINE__,varname,j,old_buf[i][j],get_buf[i][j]);
|
|
nerrs++;
|
|
}
|
|
}
|
|
}
|
|
|
|
err = nc_close(ncid); ERR
|
|
|
|
/*
|
|
SUMMARIZE_ERR;
|
|
FINAL_RESULTS;
|
|
*/
|
|
return (nerrs > 0);
|
|
}
|