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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://www.hdfgroup.org/licenses. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Purpose: Link callbacks for the native VOL connector
*
*/
/****************/
/* Module Setup */
/****************/
#define H5L_FRIEND /* Suppress error about including H5Lpkg */
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5Gprivate.h" /* Groups */
#include "H5Lpkg.h" /* Links */
#include "H5VLprivate.h" /* Virtual Object Layer */
#include "H5VLnative_private.h" /* Native VOL connector */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Local Prototypes */
/********************/
/*********************/
/* Package Variables */
/*********************/
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/*-------------------------------------------------------------------------
* Function: H5VL__native_link_create
*
* Purpose: Handles the link create callback
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5VL__native_link_create(H5VL_link_create_args_t *args, void *obj, const H5VL_loc_params_t *loc_params,
hid_t lcpl_id, hid_t H5_ATTR_UNUSED lapl_id, hid_t H5_ATTR_UNUSED dxpl_id,
void H5_ATTR_UNUSED **req)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch (args->op_type) {
case H5VL_LINK_CREATE_HARD: {
H5G_loc_t cur_loc;
H5G_loc_t link_loc;
void *cur_obj = args->args.hard.curr_obj;
H5VL_loc_params_t *cur_params = &args->args.hard.curr_loc_params;
if (NULL != cur_obj && H5G_loc_real(cur_obj, cur_params->obj_type, &cur_loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object");
if (NULL != obj && H5G_loc_real(obj, loc_params->obj_type, &link_loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object");
/* H5Lcreate_hard */
if (H5VL_OBJECT_BY_NAME == cur_params->type) {
H5G_loc_t *cur_loc_p, *link_loc_p;
/* Set up current & new location pointers */
cur_loc_p = &cur_loc;
link_loc_p = &link_loc;
if (NULL == cur_obj)
cur_loc_p = link_loc_p;
else if (NULL == obj)
link_loc_p = cur_loc_p;
else if (cur_loc_p->oloc->file != link_loc_p->oloc->file)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL,
"source and destination should be in the same file.");
/* Create the link */
if (H5L__create_hard(cur_loc_p, cur_params->loc_data.loc_by_name.name, link_loc_p,
loc_params->loc_data.loc_by_name.name, lcpl_id) < 0)
HGOTO_ERROR(H5E_LINK, H5E_CANTINIT, FAIL, "unable to create link");
} /* end if */
else { /* H5Olink */
/* Link to the object */
if (H5L_link(&link_loc, loc_params->loc_data.loc_by_name.name, &cur_loc, lcpl_id) < 0)
HGOTO_ERROR(H5E_LINK, H5E_CANTINIT, FAIL, "unable to create link");
} /* end else */
break;
}
case H5VL_LINK_CREATE_SOFT: {
H5G_loc_t link_loc; /* Group location for new link */
if (H5G_loc_real(obj, loc_params->obj_type, &link_loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object");
if (H5L__create_soft(args->args.soft.target, &link_loc, loc_params->loc_data.loc_by_name.name,
lcpl_id) < 0)
HGOTO_ERROR(H5E_LINK, H5E_CANTCREATE, FAIL, "unable to create link");
break;
}
case H5VL_LINK_CREATE_UD: {
H5G_loc_t link_loc; /* Group location for new link */
if (H5G_loc_real(obj, loc_params->obj_type, &link_loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object");
if (H5L__create_ud(&link_loc, loc_params->loc_data.loc_by_name.name, args->args.ud.buf,
args->args.ud.buf_size, args->args.ud.type, lcpl_id) < 0)
HGOTO_ERROR(H5E_LINK, H5E_CANTINIT, FAIL, "unable to create link");
break;
}
default:
HGOTO_ERROR(H5E_LINK, H5E_CANTINIT, FAIL, "invalid link creation call");
} /* end switch */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_link_create() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_link_copy
*
* Purpose: Handles the link copy callback
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5VL__native_link_copy(void *src_obj, const H5VL_loc_params_t *loc_params1, void *dst_obj,
const H5VL_loc_params_t *loc_params2, hid_t lcpl_id, hid_t H5_ATTR_UNUSED lapl_id,
hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req)
{
H5G_loc_t src_loc, *src_loc_p;
H5G_loc_t dst_loc, *dst_loc_p;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
if (NULL != src_obj && H5G_loc_real(src_obj, loc_params1->obj_type, &src_loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object");
if (NULL != dst_obj && H5G_loc_real(dst_obj, loc_params2->obj_type, &dst_loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object");
/* Set up src & dst location pointers */
src_loc_p = &src_loc;
dst_loc_p = &dst_loc;
if (NULL == src_obj)
src_loc_p = dst_loc_p;
else if (NULL == dst_obj)
dst_loc_p = src_loc_p;
/* Copy the link */
if (H5L__move(src_loc_p, loc_params1->loc_data.loc_by_name.name, dst_loc_p,
loc_params2->loc_data.loc_by_name.name, true, lcpl_id) < 0)
HGOTO_ERROR(H5E_LINK, H5E_CANTCOPY, FAIL, "unable to copy link");
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_link_copy() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_link_move
*
* Purpose: Handles the link move callback
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5VL__native_link_move(void *src_obj, const H5VL_loc_params_t *loc_params1, void *dst_obj,
const H5VL_loc_params_t *loc_params2, hid_t lcpl_id, hid_t H5_ATTR_UNUSED lapl_id,
hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req)
{
H5G_loc_t src_loc, *src_loc_p;
H5G_loc_t dst_loc, *dst_loc_p;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
if (NULL != src_obj && H5G_loc_real(src_obj, loc_params1->obj_type, &src_loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object");
if (NULL != dst_obj && H5G_loc_real(dst_obj, loc_params2->obj_type, &dst_loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object");
/* Set up src & dst location pointers */
src_loc_p = &src_loc;
dst_loc_p = &dst_loc;
if (NULL == src_obj)
src_loc_p = dst_loc_p;
else if (NULL == dst_obj)
dst_loc_p = src_loc_p;
/* Move the link */
if (H5L__move(src_loc_p, loc_params1->loc_data.loc_by_name.name, dst_loc_p,
loc_params2->loc_data.loc_by_name.name, false, lcpl_id) < 0)
HGOTO_ERROR(H5E_LINK, H5E_CANTMOVE, FAIL, "unable to move link");
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_link_move() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_link_get
*
* Purpose: Handles the link get callback
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5VL__native_link_get(void *obj, const H5VL_loc_params_t *loc_params, H5VL_link_get_args_t *args,
hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req)
{
H5G_loc_t loc;
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 (args->op_type) {
/* H5Lget_info/H5Lget_info_by_idx */
case H5VL_LINK_GET_INFO: {
/* Get the link information */
if (loc_params->type == H5VL_OBJECT_BY_NAME) {
if (H5L_get_info(&loc, loc_params->loc_data.loc_by_name.name, args->args.get_info.linfo) < 0)
HGOTO_ERROR(H5E_LINK, H5E_NOTFOUND, FAIL, "unable to get link info");
} /* end if */
else if (loc_params->type == H5VL_OBJECT_BY_IDX) {
if (H5L__get_info_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, args->args.get_info.linfo) < 0)
HGOTO_ERROR(H5E_LINK, H5E_NOTFOUND, FAIL, "unable to get link info");
} /* end else-if */
else
HGOTO_ERROR(H5E_LINK, H5E_NOTFOUND, FAIL, "unable to get link info");
break;
}
/* H5Lget_name_by_idx */
case H5VL_LINK_GET_NAME: {
if (H5L__get_name_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,
args->args.get_name.name, args->args.get_name.name_size,
args->args.get_name.name_len) < 0)
HGOTO_ERROR(H5E_LINK, H5E_NOTFOUND, FAIL, "unable to get link info");
break;
}
/* H5Lget_val/H5Lget_val_by_idx */
case H5VL_LINK_GET_VAL: {
/* Get the link information */
if (loc_params->type == H5VL_OBJECT_BY_NAME) {
if (H5L__get_val(&loc, loc_params->loc_data.loc_by_name.name, args->args.get_val.buf,
args->args.get_val.buf_size) < 0)
HGOTO_ERROR(H5E_LINK, H5E_NOTFOUND, FAIL, "unable to get link value");
}
else if (loc_params->type == H5VL_OBJECT_BY_IDX) {
if (H5L__get_val_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,
args->args.get_val.buf, args->args.get_val.buf_size) < 0)
HGOTO_ERROR(H5E_LINK, H5E_NOTFOUND, FAIL, "unable to get link val");
}
else
HGOTO_ERROR(H5E_LINK, H5E_NOTFOUND, FAIL, "unable to get link val");
break;
}
default:
HGOTO_ERROR(H5E_VOL, H5E_CANTGET, FAIL, "can't get this type of information from link");
} /* end switch */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_link_get() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_link_specific
*
* Purpose: Handles the link specific callback
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5VL__native_link_specific(void *obj, const H5VL_loc_params_t *loc_params, H5VL_link_specific_args_t *args,
hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch (args->op_type) {
case H5VL_LINK_EXISTS: {
H5G_loc_t loc;
if (H5G_loc_real(obj, loc_params->obj_type, &loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object");
if (H5L__exists(&loc, loc_params->loc_data.loc_by_name.name, args->args.exists.exists) < 0)
HGOTO_ERROR(H5E_LINK, H5E_NOTFOUND, FAIL, "unable to specific link info");
break;
}
case H5VL_LINK_ITER: {
H5VL_link_iterate_args_t *iter_args = &args->args.iterate;
H5G_loc_t loc;
/* Get the location */
if (H5G_loc_real(obj, loc_params->obj_type, &loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location");
/* Visit or iterate over the links */
if (loc_params->type == H5VL_OBJECT_BY_SELF) {
if (iter_args->recursive) {
/* H5Lvisit */
if ((ret_value = H5G_visit(&loc, ".", iter_args->idx_type, iter_args->order,
iter_args->op, iter_args->op_data)) < 0)
HGOTO_ERROR(H5E_LINK, H5E_BADITER, FAIL, "link visitation failed");
} /* end if */
else {
/* H5Literate */
if ((ret_value = H5L_iterate(&loc, ".", iter_args->idx_type, iter_args->order,
iter_args->idx_p, iter_args->op, iter_args->op_data)) < 0)
HGOTO_ERROR(H5E_LINK, H5E_BADITER, FAIL, "error iterating over links");
} /* end else */
} /* end if */
else if (loc_params->type == H5VL_OBJECT_BY_NAME) {
if (iter_args->recursive) {
/* H5Lvisit_by_name */
if ((ret_value =
H5G_visit(&loc, loc_params->loc_data.loc_by_name.name, iter_args->idx_type,
iter_args->order, iter_args->op, iter_args->op_data)) < 0)
HGOTO_ERROR(H5E_LINK, H5E_BADITER, FAIL, "link visitation failed");
} /* end if */
else {
/* H5Literate_by_name */
if ((ret_value = H5L_iterate(&loc, loc_params->loc_data.loc_by_name.name,
iter_args->idx_type, iter_args->order, iter_args->idx_p,
iter_args->op, iter_args->op_data)) < 0)
HGOTO_ERROR(H5E_LINK, H5E_BADITER, FAIL, "error iterating over links");
} /* end else */
} /* end else-if */
else
HGOTO_ERROR(H5E_LINK, H5E_UNSUPPORTED, FAIL, "unknown link iterate params");
break;
}
case H5VL_LINK_DELETE: {
H5G_loc_t loc;
if (H5G_loc_real(obj, loc_params->obj_type, &loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object");
/* Unlink */
if (loc_params->type == H5VL_OBJECT_BY_NAME) { /* H5Ldelete */
if (H5L__delete(&loc, loc_params->loc_data.loc_by_name.name) < 0)
HGOTO_ERROR(H5E_LINK, H5E_CANTDELETE, FAIL, "unable to delete link");
} /* end if */
else if (loc_params->type == H5VL_OBJECT_BY_IDX) { /* H5Ldelete_by_idx */
if (H5L__delete_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) < 0)
HGOTO_ERROR(H5E_LINK, H5E_CANTDELETE, FAIL, "unable to delete link");
} /* end else-if */
else
HGOTO_ERROR(H5E_LINK, H5E_CANTDELETE, FAIL, "unable to delete link");
break;
}
default:
HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "invalid specific operation");
} /* end switch */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_link_specific() */
|
