577 lines
25 KiB
C
577 lines
25 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the COPYING file, which can be found at the root of the source code *
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* distribution tree, or in https://www.hdfgroup.org/licenses. *
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* If you do not have access to either file, you may request a copy from *
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* help@hdfgroup.org. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/*
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* Purpose: Object callbacks for the native VOL connector
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*
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*/
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#define H5O_FRIEND /* Suppress error about including H5Opkg */
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#define H5F_FRIEND /* Suppress error about including H5Fpkg */
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#include "H5private.h" /* Generic Functions */
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#include "H5Eprivate.h" /* Error handling */
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#include "H5Fpkg.h" /* Files (pkg needed for id_exists) */
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#include "H5Gprivate.h" /* Groups */
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#include "H5Iprivate.h" /* IDs */
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#include "H5Opkg.h" /* Object headers */
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#include "H5Pprivate.h" /* Property lists */
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#include "H5VLprivate.h" /* Virtual Object Layer */
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#include "H5VLnative_private.h" /* Native VOL connector */
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/*-------------------------------------------------------------------------
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* Function: H5VL__native_object_open
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*
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* Purpose: Handles the object open callback
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*
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* Return: Success: object pointer
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* Failure: NULL
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*
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*-------------------------------------------------------------------------
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*/
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void *
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H5VL__native_object_open(void *obj, const H5VL_loc_params_t *loc_params, H5I_type_t *opened_type,
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hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req)
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{
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H5G_loc_t loc;
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void * ret_value = NULL;
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FUNC_ENTER_PACKAGE
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if (H5G_loc_real(obj, loc_params->obj_type, &loc) < 0)
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HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not a file or file object")
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switch (loc_params->type) {
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case H5VL_OBJECT_BY_NAME: {
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/* Open the object */
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if (NULL == (ret_value = H5O_open_name(&loc, loc_params->loc_data.loc_by_name.name, opened_type)))
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HGOTO_ERROR(H5E_OHDR, H5E_CANTOPENOBJ, NULL, "unable to open object by name")
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break;
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}
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case H5VL_OBJECT_BY_IDX: {
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/* Open the object */
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if (NULL == (ret_value = H5O_open_by_idx(&loc, loc_params->loc_data.loc_by_idx.name,
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loc_params->loc_data.loc_by_idx.idx_type,
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loc_params->loc_data.loc_by_idx.order,
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loc_params->loc_data.loc_by_idx.n, opened_type)))
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HGOTO_ERROR(H5E_OHDR, H5E_CANTOPENOBJ, NULL, "unable to open object by index")
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break;
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}
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case H5VL_OBJECT_BY_TOKEN: {
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H5O_token_t token = *loc_params->loc_data.loc_by_token.token;
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haddr_t addr;
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/* Decode token */
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if (H5VL_native_token_to_addr(loc.oloc->file, H5I_FILE, token, &addr) < 0)
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HGOTO_ERROR(H5E_OHDR, H5E_CANTUNSERIALIZE, NULL,
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"can't deserialize object token into address")
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/* Open the object */
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if (NULL == (ret_value = H5O_open_by_addr(&loc, addr, opened_type)))
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HGOTO_ERROR(H5E_OHDR, H5E_CANTOPENOBJ, NULL, "unable to open object by address")
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break;
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}
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case H5VL_OBJECT_BY_SELF:
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default:
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HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, NULL, "unknown open parameters")
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} /* end switch */
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done:
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FUNC_LEAVE_NOAPI(ret_value)
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} /* end H5VL__native_object_open() */
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/*-------------------------------------------------------------------------
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* Function: H5VL__native_object_copy
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*
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* Purpose: Handles the object copy callback
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*
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* Return: SUCCEED/FAIL
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*
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*-------------------------------------------------------------------------
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*/
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herr_t
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H5VL__native_object_copy(void *src_obj, const H5VL_loc_params_t *loc_params1, const char *src_name,
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void *dst_obj, const H5VL_loc_params_t *loc_params2, const char *dst_name,
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hid_t ocpypl_id, hid_t lcpl_id, hid_t H5_ATTR_UNUSED dxpl_id,
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void H5_ATTR_UNUSED **req)
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{
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H5G_loc_t src_loc; /* Source object group location */
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H5G_loc_t dst_loc; /* Destination group location */
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herr_t ret_value = FAIL;
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FUNC_ENTER_PACKAGE
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/* get location for objects */
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if (H5G_loc_real(src_obj, loc_params1->obj_type, &src_loc) < 0)
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HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object")
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if (H5G_loc_real(dst_obj, loc_params2->obj_type, &dst_loc) < 0)
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HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object")
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/* Copy the object */
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if ((ret_value = H5O_copy(&src_loc, src_name, &dst_loc, dst_name, ocpypl_id, lcpl_id)) < 0)
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HGOTO_ERROR(H5E_SYM, H5E_CANTCOPY, FAIL, "unable to copy object")
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done:
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FUNC_LEAVE_NOAPI(ret_value)
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} /* end H5VL__native_object_copy() */
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/*-------------------------------------------------------------------------
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* Function: H5VL__native_object_get
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*
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* Purpose: Handles the object get callback
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*
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* Return: SUCCEED/FAIL
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*
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*-------------------------------------------------------------------------
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*/
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herr_t
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H5VL__native_object_get(void *obj, const H5VL_loc_params_t *loc_params, H5VL_object_get_t get_type,
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hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req, va_list arguments)
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{
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herr_t ret_value = SUCCEED; /* Return value */
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H5G_loc_t loc; /* Location of group */
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FUNC_ENTER_PACKAGE
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if (H5G_loc_real(obj, loc_params->obj_type, &loc) < 0)
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HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object")
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switch (get_type) {
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/* Object file */
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case H5VL_OBJECT_GET_FILE: {
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void **ret = HDva_arg(arguments, void **);
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if (loc_params->type == H5VL_OBJECT_BY_SELF) {
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*ret = (void *)loc.oloc->file;
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/* TODO we currently need to set id_exists to TRUE because
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* the upper layer will create an ID from the returned
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* object. In theory this should not be needed and id_exists
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* should be removed once the H5Fmount code gets fixed. */
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loc.oloc->file->id_exists = TRUE;
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}
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else
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HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "unknown get_file parameters")
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break;
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}
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/* Object name */
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case H5VL_OBJECT_GET_NAME: {
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ssize_t *ret = HDva_arg(arguments, ssize_t *);
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char * name = HDva_arg(arguments, char *);
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size_t size = HDva_arg(arguments, size_t);
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if (loc_params->type == H5VL_OBJECT_BY_SELF) {
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/* Retrieve object's name */
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if ((*ret = H5G_get_name(&loc, name, size, NULL)) < 0)
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HGOTO_ERROR(H5E_VOL, H5E_CANTGET, FAIL, "can't retrieve object name")
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} /* end if */
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else if (loc_params->type == H5VL_OBJECT_BY_TOKEN) {
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H5O_loc_t obj_oloc; /* Object location */
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H5O_token_t token = *loc_params->loc_data.loc_by_token.token;
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/* Initialize the object location */
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H5O_loc_reset(&obj_oloc);
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obj_oloc.file = loc.oloc->file;
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/* Decode token */
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if (H5VL_native_token_to_addr(obj_oloc.file, H5I_FILE, token, &obj_oloc.addr) < 0)
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HGOTO_ERROR(H5E_OHDR, H5E_CANTUNSERIALIZE, FAIL,
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"can't deserialize object token into address")
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/* Retrieve object's name */
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if ((*ret = H5G_get_name_by_addr(loc.oloc->file, &obj_oloc, name, size)) < 0)
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HGOTO_ERROR(H5E_VOL, H5E_CANTGET, FAIL, "can't determine object name")
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} /* end else-if */
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else
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HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "unknown get_name parameters")
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break;
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}
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/* Object type */
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case H5VL_OBJECT_GET_TYPE: {
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H5O_type_t *obj_type = HDva_arg(arguments, H5O_type_t *);
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if (loc_params->type == H5VL_OBJECT_BY_TOKEN) {
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H5O_loc_t obj_oloc; /* Object location */
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unsigned rc; /* Reference count of object */
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H5O_token_t token = *loc_params->loc_data.loc_by_token.token;
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/* Initialize the object location */
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H5O_loc_reset(&obj_oloc);
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obj_oloc.file = loc.oloc->file;
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/* Decode token */
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if (H5VL_native_token_to_addr(obj_oloc.file, H5I_FILE, token, &obj_oloc.addr) < 0)
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HGOTO_ERROR(H5E_OHDR, H5E_CANTUNSERIALIZE, FAIL,
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"can't deserialize object token into address")
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/* Get the # of links for object, and its type */
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/* (To check to make certain that this object hasn't been deleted) */
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if (H5O_get_rc_and_type(&obj_oloc, &rc, obj_type) < 0 || 0 == rc)
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HGOTO_ERROR(H5E_REFERENCE, H5E_LINKCOUNT, FAIL, "dereferencing deleted object")
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}
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else
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HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "unknown get_type parameters")
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break;
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}
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/* H5Oget_info(_name|_by_idx)3 */
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case H5VL_OBJECT_GET_INFO: {
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H5O_info2_t *oinfo = HDva_arg(arguments, H5O_info2_t *);
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unsigned fields = HDva_arg(arguments, unsigned);
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/* Use the original H5Oget_info code to get the data */
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if (loc_params->type == H5VL_OBJECT_BY_SELF) { /* H5Oget_info */
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/* Retrieve the object's information */
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if (H5G_loc_info(&loc, ".", oinfo, fields) < 0)
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HGOTO_ERROR(H5E_OHDR, H5E_NOTFOUND, FAIL, "object not found")
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} /* end if */
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else if (loc_params->type == H5VL_OBJECT_BY_NAME) { /* H5Oget_info_by_name */
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/* Retrieve the object's information */
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if (H5G_loc_info(&loc, loc_params->loc_data.loc_by_name.name, oinfo, fields) < 0)
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HGOTO_ERROR(H5E_OHDR, H5E_NOTFOUND, FAIL, "object not found")
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} /* end else-if */
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else if (loc_params->type == H5VL_OBJECT_BY_IDX) { /* H5Oget_info_by_idx */
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H5G_loc_t obj_loc; /* Location used to open group */
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H5G_name_t obj_path; /* Opened object group hier. path */
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H5O_loc_t obj_oloc; /* Opened object object location */
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/* Set up opened group location to fill in */
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obj_loc.oloc = &obj_oloc;
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obj_loc.path = &obj_path;
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H5G_loc_reset(&obj_loc);
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/* Find the object's location, according to the order in the index */
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if (H5G_loc_find_by_idx(&loc, loc_params->loc_data.loc_by_idx.name,
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loc_params->loc_data.loc_by_idx.idx_type,
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loc_params->loc_data.loc_by_idx.order,
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loc_params->loc_data.loc_by_idx.n, &obj_loc /*out*/) < 0)
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HGOTO_ERROR(H5E_OHDR, H5E_NOTFOUND, FAIL, "group not found")
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/* Retrieve the object's information */
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if (H5O_get_info(obj_loc.oloc, oinfo, fields) < 0) {
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H5G_loc_free(&obj_loc);
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HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't retrieve object info")
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} /* end if */
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/* Release the object location */
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if (H5G_loc_free(&obj_loc) < 0)
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HGOTO_ERROR(H5E_OHDR, H5E_CANTRELEASE, FAIL, "can't free location")
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} /* end else-if */
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else
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HGOTO_ERROR(H5E_OHDR, H5E_UNSUPPORTED, FAIL, "unknown get info parameters")
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break;
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}
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default:
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HGOTO_ERROR(H5E_VOL, H5E_CANTGET, FAIL, "can't get this type of information from object")
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} /* end switch */
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done:
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FUNC_LEAVE_NOAPI(ret_value)
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} /* end H5VL__native_object_get() */
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/*-------------------------------------------------------------------------
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* Function: H5VL__native_object_specific
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*
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* Purpose: Handles the object specific callback
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*
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* Return: SUCCEED/FAIL
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*
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*-------------------------------------------------------------------------
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*/
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herr_t
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H5VL__native_object_specific(void *obj, const H5VL_loc_params_t *loc_params,
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H5VL_object_specific_t specific_type, hid_t H5_ATTR_UNUSED dxpl_id,
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void H5_ATTR_UNUSED **req, va_list arguments)
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{
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H5G_loc_t loc;
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herr_t ret_value = SUCCEED; /* Return value */
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FUNC_ENTER_PACKAGE
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if (H5G_loc_real(obj, loc_params->obj_type, &loc) < 0)
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HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object")
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switch (specific_type) {
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/* H5Oincr_refcount / H5Odecr_refcount */
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case H5VL_OBJECT_CHANGE_REF_COUNT: {
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int update_ref = HDva_arg(arguments, int);
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H5O_loc_t *oloc = loc.oloc;
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if (H5O_link(oloc, update_ref) < 0)
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HGOTO_ERROR(H5E_OHDR, H5E_LINKCOUNT, FAIL, "modifying object link count failed")
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break;
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}
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/* H5Oexists_by_name */
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case H5VL_OBJECT_EXISTS: {
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htri_t *ret = HDva_arg(arguments, htri_t *);
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if (loc_params->type == H5VL_OBJECT_BY_NAME) {
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/* Check if the object exists */
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if ((*ret = H5G_loc_exists(&loc, loc_params->loc_data.loc_by_name.name)) < 0)
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HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "unable to determine if '%s' exists",
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loc_params->loc_data.loc_by_name.name)
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} /* end if */
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else
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HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "unknown object exists parameters")
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break;
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}
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/* Lookup object */
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case H5VL_OBJECT_LOOKUP: {
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H5O_token_t *token = HDva_arg(arguments, H5O_token_t *);
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HDassert(token);
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if (loc_params->type == H5VL_OBJECT_BY_NAME) {
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H5G_loc_t obj_loc; /* Group hier. location of object */
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H5G_name_t obj_path; /* Object group hier. path */
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H5O_loc_t obj_oloc; /* Object object location */
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/* Set up opened group location to fill in */
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obj_loc.oloc = &obj_oloc;
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obj_loc.path = &obj_path;
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H5G_loc_reset(&obj_loc);
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/* Find the object */
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if (H5G_loc_find(&loc, loc_params->loc_data.loc_by_name.name, &obj_loc) < 0)
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HGOTO_ERROR(H5E_OHDR, H5E_NOTFOUND, FAIL, "object not found")
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/* Encode token */
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if (H5VL_native_addr_to_token(loc.oloc->file, H5I_FILE, obj_loc.oloc->addr, token) < 0)
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HGOTO_ERROR(H5E_OHDR, H5E_CANTSERIALIZE, FAIL,
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"can't serialize address into object token")
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/* Release the object location */
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if (H5G_loc_free(&obj_loc) < 0)
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HGOTO_ERROR(H5E_OHDR, H5E_CANTRELEASE, FAIL, "can't free location")
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} /* end if */
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else
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HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "unknown object exists parameters")
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break;
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}
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case H5VL_OBJECT_VISIT: {
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H5_index_t idx_type = (H5_index_t)HDva_arg(arguments, int); /* enum work-around */
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H5_iter_order_t order = (H5_iter_order_t)HDva_arg(arguments, int); /* enum work-around */
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H5O_iterate2_t op = HDva_arg(arguments, H5O_iterate2_t);
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void * op_data = HDva_arg(arguments, void *);
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unsigned fields = HDva_arg(arguments, unsigned);
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/* Call internal object visitation routine */
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if (loc_params->type == H5VL_OBJECT_BY_SELF) {
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/* H5Ovisit */
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if ((ret_value = H5O__visit(&loc, ".", idx_type, order, op, op_data, fields)) < 0)
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HGOTO_ERROR(H5E_OHDR, H5E_BADITER, FAIL, "object visitation failed")
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} /* end if */
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else if (loc_params->type == H5VL_OBJECT_BY_NAME) {
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/* H5Ovisit_by_name */
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if ((ret_value = H5O__visit(&loc, loc_params->loc_data.loc_by_name.name, idx_type, order, op,
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op_data, fields)) < 0)
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HGOTO_ERROR(H5E_OHDR, H5E_BADITER, FAIL, "object visitation failed")
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} /* end else-if */
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else
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HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "unknown object visit params");
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break;
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}
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case H5VL_OBJECT_FLUSH: {
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hid_t oid = HDva_arg(arguments, hid_t);
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/* Flush the object's metadata */
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if (H5O_flush(loc.oloc, oid) < 0)
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HGOTO_ERROR(H5E_OHDR, H5E_CANTFLUSH, FAIL, "unable to flush object")
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break;
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}
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case H5VL_OBJECT_REFRESH: {
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hid_t oid = HDva_arg(arguments, hid_t);
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H5O_loc_t *oloc = loc.oloc;
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/* Refresh the metadata */
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if (H5O_refresh_metadata(oid, *oloc) < 0)
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HGOTO_ERROR(H5E_OHDR, H5E_CANTLOAD, FAIL, "unable to refresh object")
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break;
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}
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default:
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HGOTO_ERROR(H5E_VOL, H5E_CANTGET, FAIL, "can't recognize this operation type")
|
|
} /* end switch */
|
|
|
|
done:
|
|
FUNC_LEAVE_NOAPI(ret_value)
|
|
} /* end H5VL__native_object_specific() */
|
|
|
|
/*-------------------------------------------------------------------------
|
|
* Function: H5VL__native_object_optional
|
|
*
|
|
* Purpose: Handles the object optional callback
|
|
*
|
|
* Return: SUCCEED/FAIL
|
|
*
|
|
*-------------------------------------------------------------------------
|
|
*/
|
|
herr_t
|
|
H5VL__native_object_optional(void *obj, H5VL_object_optional_t optional_type, hid_t H5_ATTR_UNUSED dxpl_id,
|
|
void H5_ATTR_UNUSED **req, va_list arguments)
|
|
{
|
|
H5VL_loc_params_t *loc_params = HDva_arg(arguments, H5VL_loc_params_t *);
|
|
H5G_loc_t loc; /* Location of group */
|
|
herr_t ret_value = SUCCEED; /* Return value */
|
|
|
|
FUNC_ENTER_PACKAGE
|
|
|
|
if (H5G_loc_real(obj, loc_params->obj_type, &loc) < 0)
|
|
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object")
|
|
|
|
switch (optional_type) {
|
|
/* H5Oget_comment / H5Oget_comment_by_name */
|
|
case H5VL_NATIVE_OBJECT_GET_COMMENT: {
|
|
char * comment = HDva_arg(arguments, char *);
|
|
size_t bufsize = HDva_arg(arguments, size_t);
|
|
ssize_t *ret = HDva_arg(arguments, ssize_t *);
|
|
|
|
/* Retrieve the object's comment */
|
|
if (loc_params->type == H5VL_OBJECT_BY_SELF) { /* H5Oget_comment */
|
|
if ((*ret = H5G_loc_get_comment(&loc, ".", comment /*out*/, bufsize)) < 0)
|
|
HGOTO_ERROR(H5E_OHDR, H5E_NOTFOUND, FAIL, "object not found")
|
|
} /* end if */
|
|
else if (loc_params->type == H5VL_OBJECT_BY_NAME) { /* H5Oget_comment_by_name */
|
|
if ((*ret = H5G_loc_get_comment(&loc, loc_params->loc_data.loc_by_name.name, comment /*out*/,
|
|
bufsize)) < 0)
|
|
HGOTO_ERROR(H5E_OHDR, H5E_NOTFOUND, FAIL, "object not found")
|
|
} /* end else-if */
|
|
else
|
|
HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "unknown set_coment parameters")
|
|
break;
|
|
}
|
|
|
|
/* H5Oset_comment */
|
|
case H5VL_NATIVE_OBJECT_SET_COMMENT: {
|
|
const char *comment = HDva_arg(arguments, char *);
|
|
|
|
if (loc_params->type == H5VL_OBJECT_BY_SELF) { /* H5Oset_comment */
|
|
/* (Re)set the object's comment */
|
|
if (H5G_loc_set_comment(&loc, ".", comment) < 0)
|
|
HGOTO_ERROR(H5E_OHDR, H5E_NOTFOUND, FAIL, "object not found")
|
|
} /* end if */
|
|
else if (loc_params->type == H5VL_OBJECT_BY_NAME) { /* H5Oset_comment_by_name */
|
|
/* (Re)set the object's comment */
|
|
if (H5G_loc_set_comment(&loc, loc_params->loc_data.loc_by_name.name, comment) < 0)
|
|
HGOTO_ERROR(H5E_OHDR, H5E_NOTFOUND, FAIL, "object not found")
|
|
} /* end else-if */
|
|
else
|
|
HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "unknown set_coment parameters")
|
|
break;
|
|
}
|
|
|
|
/* H5Odisable_mdc_flushes */
|
|
case H5VL_NATIVE_OBJECT_DISABLE_MDC_FLUSHES: {
|
|
H5O_loc_t *oloc = loc.oloc;
|
|
|
|
if (H5O_disable_mdc_flushes(oloc) < 0)
|
|
HGOTO_ERROR(H5E_OHDR, H5E_CANTCORK, FAIL, "unable to cork the metadata cache");
|
|
|
|
break;
|
|
}
|
|
|
|
/* H5Oenable_mdc_flushes */
|
|
case H5VL_NATIVE_OBJECT_ENABLE_MDC_FLUSHES: {
|
|
H5O_loc_t *oloc = loc.oloc;
|
|
|
|
if (H5O_enable_mdc_flushes(oloc) < 0)
|
|
HGOTO_ERROR(H5E_OHDR, H5E_CANTUNCORK, FAIL, "unable to uncork the metadata cache");
|
|
|
|
break;
|
|
}
|
|
|
|
/* H5Oare_mdc_flushes_disabled */
|
|
case H5VL_NATIVE_OBJECT_ARE_MDC_FLUSHES_DISABLED: {
|
|
H5O_loc_t *oloc = loc.oloc;
|
|
hbool_t * are_disabled = (hbool_t *)HDva_arg(arguments, hbool_t *);
|
|
|
|
if (H5O_are_mdc_flushes_disabled(oloc, are_disabled) < 0)
|
|
HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "unable to determine metadata cache cork status");
|
|
|
|
break;
|
|
}
|
|
|
|
/* H5Oget_native_info(_name|_by_idx) */
|
|
case H5VL_NATIVE_OBJECT_GET_NATIVE_INFO: {
|
|
H5O_native_info_t *native_info = HDva_arg(arguments, H5O_native_info_t *);
|
|
unsigned fields = HDva_arg(arguments, unsigned);
|
|
|
|
/* Use the original H5Oget_info code to get the data */
|
|
|
|
if (loc_params->type == H5VL_OBJECT_BY_SELF) { /* H5Oget_info */
|
|
/* Retrieve the object's information */
|
|
if (H5G_loc_native_info(&loc, ".", native_info, fields) < 0)
|
|
HGOTO_ERROR(H5E_OHDR, H5E_NOTFOUND, FAIL, "object not found")
|
|
} /* end if */
|
|
else if (loc_params->type == H5VL_OBJECT_BY_NAME) { /* H5Oget_info_by_name */
|
|
/* Retrieve the object's information */
|
|
if (H5G_loc_native_info(&loc, loc_params->loc_data.loc_by_name.name, native_info, fields) < 0)
|
|
HGOTO_ERROR(H5E_OHDR, H5E_NOTFOUND, FAIL, "object not found")
|
|
} /* end else-if */
|
|
else if (loc_params->type == H5VL_OBJECT_BY_IDX) { /* H5Oget_info_by_idx */
|
|
H5G_loc_t obj_loc; /* Location used to open group */
|
|
H5G_name_t obj_path; /* Opened object group hier. path */
|
|
H5O_loc_t obj_oloc; /* Opened object object location */
|
|
|
|
/* Set up opened group location to fill in */
|
|
obj_loc.oloc = &obj_oloc;
|
|
obj_loc.path = &obj_path;
|
|
H5G_loc_reset(&obj_loc);
|
|
|
|
/* Find the object's location, according to the order in the index */
|
|
if (H5G_loc_find_by_idx(&loc, loc_params->loc_data.loc_by_idx.name,
|
|
loc_params->loc_data.loc_by_idx.idx_type,
|
|
loc_params->loc_data.loc_by_idx.order,
|
|
loc_params->loc_data.loc_by_idx.n, &obj_loc /*out*/) < 0)
|
|
HGOTO_ERROR(H5E_OHDR, H5E_NOTFOUND, FAIL, "group not found")
|
|
|
|
/* Retrieve the object's information */
|
|
if (H5O_get_native_info(obj_loc.oloc, native_info, fields) < 0) {
|
|
H5G_loc_free(&obj_loc);
|
|
HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't retrieve object info")
|
|
} /* end if */
|
|
|
|
/* Release the object location */
|
|
if (H5G_loc_free(&obj_loc) < 0)
|
|
HGOTO_ERROR(H5E_OHDR, H5E_CANTRELEASE, FAIL, "can't free location")
|
|
} /* end else-if */
|
|
else
|
|
HGOTO_ERROR(H5E_OHDR, H5E_UNSUPPORTED, FAIL, "unknown get info parameters")
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
HGOTO_ERROR(H5E_VOL, H5E_CANTGET, FAIL, "can't perform this operation on object");
|
|
} /* end switch */
|
|
|
|
done:
|
|
FUNC_LEAVE_NOAPI(ret_value)
|
|
} /* end H5VL__native_object_optional() */
|