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/*
* (C) Copyright 2005- ECMWF.
*
* This software is licensed under the terms of the Apache Licence Version 2.0
* which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
*
* In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
* virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
*/
/* Test: reading GRIB2 multi fields messages from memory */
#include "grib_api_internal.h"
int main(int argc, char* argv[])
{
struct stat finfo;
char shortName[20] = {0,};
size_t len;
grib_handle* h = NULL;
size_t fsize;
unsigned char* data = NULL;
unsigned char* p = NULL;
void* pdata = NULL;
int error = 0;
int count = 0;
char* filename = NULL;
FILE* f = NULL;
long level = 0;
grib_context* c = grib_context_get_default();
int multi_support = 0;
if (argc == 3 && !strcmp(argv[1], "-m")) {
grib_multi_support_on(c);
multi_support = 1;
filename = argv[2];
}
else if (argc == 2)
filename = argv[1];
else
return 1;
ECCODES_ASSERT(filename);
f = fopen(filename, "rb");
ECCODES_ASSERT(f);
stat(filename, &finfo);
fsize = finfo.st_size;
data = (unsigned char*)malloc(fsize);
p = data;
ECCODES_ASSERT(data);
if (fread(data, 1, fsize, f) != fsize) {
perror(filename);
exit(1);
}
fclose(f);
pdata = &data;
while ((h = grib_handle_new_from_multi_message(c, (void**)pdata, &fsize, &error)) != NULL) {
count++;
len = 20;
GRIB_CHECK(grib_get_string(h, "shortName", shortName, &len), "shortName");
GRIB_CHECK(grib_get_long(h, "level", &level), "level");
printf("%d %s %ld\n", count, shortName, level);
if (!multi_support) {
grib_context_free(c, h->buffer->data); /* See grib_handle_delete and grib_buffer_delete */
}
grib_handle_delete(h);
}
free(p);
return 0;
}
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