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Implement H5Fget_obj_ids #61

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merged 4 commits into from
Sep 13, 2023
Merged

Implement H5Fget_obj_ids #61

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a512a38
Implement H5Fget_obj_ids
mattjala Aug 31, 2023
1dad84f
Committing clang-format changes
github-actions[bot] Aug 31, 2023
94d8342
Fix returned H5Fget_obj_ids count
mattjala Sep 12, 2023
fde0fa0
Committing clang-format changes
github-actions[bot] Sep 12, 2023
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71 changes: 69 additions & 2 deletions src/rest_vol_file.c
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,13 @@

#include "rest_vol_file.h"

herr_t RV_iterate_copy_hid_cb(hid_t obj_id, void *udata);

struct object_id_list {
hid_t *obj_id_list;
size_t obj_count;
} typedef object_id_list;

/*-------------------------------------------------------------------------
* Function: RV_file_create
*
Expand Down Expand Up @@ -544,9 +551,44 @@ RV_file_get(void *obj, H5VL_file_get_args_t *args, hid_t dxpl_id, void **req)

/* H5Fget_obj_ids */
case H5VL_FILE_GET_OBJ_IDS:
FUNC_GOTO_ERROR(H5E_FILE, H5E_UNSUPPORTED, FAIL, "H5Fget_obj_ids is unsupported");
break;

if (args->args.get_obj_ids.max_objs <= 0)
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FUNC_GOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "invalid max object parameter");

if (args->args.get_obj_ids.oid_list == NULL)
FUNC_GOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "given object id list buffer is NULL");

if (args->args.get_obj_ids.count == NULL)
FUNC_GOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "given object id count buffer is NULL");

*args->args.get_obj_ids.count = 0;
unsigned int requested_types = args->args.get_obj_ids.types;

object_id_list id_list;
id_list.obj_id_list = args->args.get_obj_ids.oid_list;
id_list.obj_count = 0;

if (args->args.get_obj_ids.types & H5F_OBJ_FILE)
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if (H5Iiterate(H5I_FILE, RV_iterate_copy_hid_cb, &id_list) < 0)
FUNC_GOTO_ERROR(H5E_FILE, H5E_OBJECTITERERROR, FAIL, "can't iterate over file ids");

if (args->args.get_obj_ids.types & H5F_OBJ_GROUP)
if (H5Iiterate(H5I_GROUP, RV_iterate_copy_hid_cb, &id_list) < 0)
FUNC_GOTO_ERROR(H5E_FILE, H5E_OBJECTITERERROR, FAIL, "can't iterate over group ids");

if (args->args.get_obj_ids.types & H5F_OBJ_DATATYPE)
if (H5Iiterate(H5I_DATATYPE, RV_iterate_copy_hid_cb, &id_list) < 0)
FUNC_GOTO_ERROR(H5E_FILE, H5E_OBJECTITERERROR, FAIL, "can't iterate over datatype ids");

if (args->args.get_obj_ids.types & H5F_OBJ_DATASET)
if (H5Iiterate(H5I_DATASET, RV_iterate_copy_hid_cb, &id_list) < 0)
FUNC_GOTO_ERROR(H5E_FILE, H5E_OBJECTITERERROR, FAIL, "can't iterate over dataset ids");

if (args->args.get_obj_ids.types & H5F_OBJ_ATTR)
if (H5Iiterate(H5I_ATTR, RV_iterate_copy_hid_cb, &id_list) < 0)
FUNC_GOTO_ERROR(H5E_FILE, H5E_OBJECTITERERROR, FAIL, "can't iterate over attribute ids");
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break;
default:
FUNC_GOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't get this type of information from file");
} /* end switch */
Expand Down Expand Up @@ -755,3 +797,28 @@ RV_file_close(void *file, hid_t dxpl_id, void **req)

return ret_value;
} /* end RV_file_close() */

/*-------------------------------------------------------------------------
* Function: RV_iterate_copy_hid_cb
*
* Purpose: Callback for H5Iiterate() that copies the hid_t
* of each library object into a list.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Matthew Larson
* August, 2023
*/
herr_t
RV_iterate_copy_hid_cb(hid_t obj_id, void *udata)
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{
herr_t ret_value = SUCCEED;
object_id_list *id_list = (object_id_list *)udata;

id_list->obj_id_list[id_list->obj_count] = obj_id;

id_list->obj_count++;

done:
return ret_value;
}