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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.
Test internal netcdf-4 file code.
$Id$
*/
#include <config.h>
#include <stdio.h>
#include <nc_tests.h>
#include <err_macros.h>
#include "netcdf.h"
#include <hdf5.h>
#include <unistd.h>
#include <time.h>
#include <sys/time.h> /* Extra high precision time info. */
#include <string.h>
#define NDIMS 1
#define FILE_NAME "tst_mem.nc"
#define NUM_TRIES 20000
#define TIME_NAME "time"
#define SFC_TEMP_NAME "sfc_temp"
void
get_mem_used2(int *mem_used)
{
char buf[30];
FILE *pf;
snprintf(buf, 30, "/proc/%u/statm", (unsigned)getpid());
pf = fopen(buf, "r");
if (pf) {
unsigned size; /* total program size */
unsigned resident;/* resident set size */
unsigned share;/* shared pages */
unsigned text;/* text (code) */
unsigned lib;/* library */
unsigned data;/* data/stack */
/*unsigned dt; dirty pages (unused in Linux 2.6)*/
fscanf(pf, "%u %u %u %u %u %u", &size, &resident, &share,
&text, &lib, &data);
*mem_used = data;
}
else
*mem_used = -1;
fclose(pf);
}
int main(void)
{
int ncid, sfc_tempid;
float data;
int dimid;
size_t l_index[NDIMS] = {10000};
int mem_used, mem_used1;
int i;
printf("\n*** Testing netcdf-4 memory use with unlimited dimensions.\n");
printf("*** testing with user-contributed code...");
if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
if (nc_def_dim(ncid, TIME_NAME, NC_UNLIMITED, &dimid)) ERR;
if (nc_def_var(ncid, SFC_TEMP_NAME, NC_FLOAT, NDIMS, &dimid, &sfc_tempid)) ERR;
/* Write data each 100ms*/
get_mem_used2(&mem_used);
for (i = 0; i < NUM_TRIES; i++)
{
data = 25.5 + l_index[0];
if (nc_put_var1_float(ncid, sfc_tempid, l_index, (const float*) &data)) ERR;
l_index[0]++;
get_mem_used2(&mem_used1);
if (!(i%100) && mem_used1 - mem_used)
printf("delta %d bytes of memory for try %d\n", mem_used1 - mem_used, i);
}
if (nc_close(ncid)) ERR;
SUMMARIZE_ERR;
FINAL_RESULTS;
}
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