mirror of https://github.com/ecmwf/eccodes.git
55 lines
1.5 KiB
C++
55 lines
1.5 KiB
C++
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/*
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* (C) Copyright 2005- ECMWF.
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*
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* This software is licensed under the terms of the Apache Licence Version 2.0
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* which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
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*
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* In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
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* virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
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*/
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#include "grib_api_internal.h"
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int main(int argc, char** argv)
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{
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FILE* in = NULL;
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int err = 0;
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grib_handle* h_full = NULL;
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grib_keys_iterator* iter = NULL;
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const char* name = NULL;
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const void* msg1 = NULL;
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const char* infilename = NULL;
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size_t size1 = 0;
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grib_handle* h_partial = 0;
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Assert(argc == 2);
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infilename = argv[1];
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printf("Processing file %s\n", infilename);
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in = fopen(infilename, "rb");
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Assert(in);
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h_full = grib_handle_new_from_file(0, in, &err);
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Assert(h_full);
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Assert(!err);
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GRIB_CHECK(grib_get_message_headers(h_full, &msg1, &size1), 0);
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h_partial = grib_handle_new_from_partial_message(h_full->context, msg1, size1);
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Assert(h_partial);
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iter = grib_keys_iterator_new(h_partial, GRIB_KEYS_ITERATOR_SKIP_COMPUTED, NULL);
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Assert(iter);
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while (grib_keys_iterator_next(iter)) {
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name = grib_keys_iterator_get_name(iter);
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printf("Header key=%s\n", name);
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}
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grib_keys_iterator_delete(iter);
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grib_handle_delete(h_partial);
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grib_handle_delete(h_full);
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fclose(in);
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return 0;
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}
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