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GRIB lightweight clone: Copy packingType

This commit is contained in:
Shahram Najm 2023-11-27 17:50:59 +00:00
parent 2707c2fca2
commit 017947df5f
1 changed files with 18 additions and 5 deletions
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23
src/grib_handle.cc
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@ -341,25 +341,38 @@ static bool can_create_clone_light(const grib_handle* h)
grib_handle* grib_handle_clone_light(const grib_handle* h)
{
int err = 0;
long edition = 0;
int err = 0;
grib_handle* result = NULL;
grib_context* c = h->context;
if (!can_create_clone_light(h)) {
// Lightweight clone not possible. Do a normal clone
return grib_handle_clone(h);
}
char sample_name[1024]; /* name of the GRIB sample file */
char sample_name[1024];
long edition = 0;
grib_get_long(h, "edition", &edition);
snprintf(sample_name, sizeof(sample_name), "GRIB%ld", edition);
grib_handle* h_sample = grib_handle_new_from_samples(NULL, sample_name);
grib_handle* h_sample = grib_handle_new_from_samples(c, sample_name);
if (!h_sample) {
grib_context_log(c, GRIB_LOG_ERROR, "Failed to create lightweight clone using sample %s", sample_name);
return NULL;
}
// Must preserve the packingType
char input_packing_type[100];
size_t len = sizeof(input_packing_type);
err = grib_get_string(h, "packingType", input_packing_type, &len);
if (!err) {
grib_set_string(h_sample, "packingType", input_packing_type, &len);
}
// Copy all sections except Bitmap and Data from h to h_sample
const int sections_to_copy = GRIB_SECTION_PRODUCT | GRIB_SECTION_LOCAL | GRIB_SECTION_GRID;
result = grib_util_sections_copy((grib_handle*)h, h_sample, sections_to_copy, &err);
if (!result || err) {
grib_context_log(h->context, GRIB_LOG_ERROR, "Failed to create lightweight clone");
grib_context_log(c, GRIB_LOG_ERROR, "Failed to create lightweight clone: Unable to copy sections");
grib_handle_delete(h_sample);
return NULL;
}