mirror of https://github.com/ecmwf/eccodes.git
81 lines
2.2 KiB
C++
81 lines
2.2 KiB
C++
/*
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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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/*
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* Description: Reads a GRIB message from file, measures read time.
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*
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*/
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#include <stdio.h>
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#include "grib_api_internal.h"
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static void usage(const char* prog)
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{
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printf("usage: %s filename\n", prog);
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exit(1);
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}
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int main(int argc, char** argv)
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{
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grib_timer* tes = grib_get_timer(0, "decoding", 0, 0);
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FILE* in = NULL;
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int err = 0, i = 0;
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grib_handle* h = NULL;
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size_t values_len = 0;
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double* values = NULL;
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double duration_actual = 0;
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const double duration_max = 3.6; /* seconds */
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const int num_repetitions = 100;
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if (argc < 2) usage(argv[0]);
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in = fopen(argv[1], "rb");
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if (!in) {
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printf("ERROR: unable to open file %s\n", argv[1]);
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return 1;
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}
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/* create new handle */
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err = 0;
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h = grib_handle_new_from_file(0, in, &err);
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if (h == NULL) {
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printf("Error: unable to create handle from file.\n");
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return 1;
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}
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/* get the size of the values array*/
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GRIB_CHECK(grib_get_size(h, "values", &values_len), 0);
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values = (double*)malloc(values_len * sizeof(double));
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/* get data values*/
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grib_timer_start(tes);
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for (i = 0; i < num_repetitions; i++) {
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GRIB_CHECK(grib_get_double_array(h, "values", values, &values_len), 0);
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}
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grib_timer_stop(tes, 0);
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duration_actual = grib_timer_value(tes);
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if (duration_actual > duration_max) {
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fprintf(stderr, "Decoding took longer than expected! actual time=%g, expected to take less than %g seconds",
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duration_actual, duration_max);
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return 1;
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}
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printf("Test passed. Actual decode time=%g\n", duration_actual);
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free(values);
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grib_handle_delete(h);
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fclose(in);
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return 0;
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}
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// int main(int argc, char** argv)
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// {
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// return 0;
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// }
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// #endif
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