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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* 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 files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include "H5VLiod_server.h"
#ifdef H5_HAVE_EFF
/*
* Programmer: Mohamad Chaarawi <chaarawi@hdfgroup.gov>
* June, 2013
*
* Purpose: The IOD plugin server side group routines.
*/
#define EEXISTS 1
/*-------------------------------------------------------------------------
* Function: H5VL_iod_server_group_create_cb
*
* Purpose: Creates a group as a iod object.
*
* Return: Success: SUCCEED
* Failure: Negative
*
* Programmer: Mohamad Chaarawi
* February, 2013
*
*-------------------------------------------------------------------------
*/
void
H5VL_iod_server_group_create_cb(AXE_engine_t UNUSED axe_engine,
size_t UNUSED num_n_parents, AXE_task_t UNUSED n_parents[],
size_t UNUSED num_s_parents, AXE_task_t UNUSED s_parents[],
void *_op_data)
{
op_data_t *op_data = (op_data_t *)_op_data;
group_create_in_t *input = (group_create_in_t *)op_data->input;
group_create_out_t output;
iod_handle_t coh = input->coh; /* the container handle */
iod_handle_t loc_handle = input->loc_oh; /* The handle for current object - could be undefined */
iod_obj_id_t loc_id = input->loc_id; /* The ID of the current location object */
iod_obj_id_t grp_id = input->grp_id; /* The ID of the group that needs to be created */
const char *name = input->name; /* path relative to loc_id and loc_oh */
iod_trans_id_t wtid = input->trans_num;
iod_trans_id_t rtid = input->rcxt_num;
iod_handle_t grp_oh, cur_oh, mdkv_oh;
iod_obj_id_t cur_id, mdkv_id, attr_id;
char *last_comp = NULL; /* the name of the group obtained from traversal function */
hid_t gcpl_id;
scratch_pad_t sp;
iod_ret_t ret;
hbool_t collective = FALSE; /* MSC - change when we allow for collective */
herr_t ret_value = SUCCEED;
FUNC_ENTER_NOAPI_NOINIT
#if H5VL_IOD_DEBUG
fprintf(stderr, "Start group create %s\n", name);
#endif
/* the traversal will retrieve the location where the group needs
to be created. The traversal will fail if an intermediate group
does not exist. */
if(H5VL_iod_server_traverse(coh, loc_id, loc_handle, name, rtid, FALSE,
&last_comp, &cur_id, &cur_oh) < 0)
HGOTO_ERROR(H5E_SYM, H5E_NOSPACE, FAIL, "can't traverse path");
/* create the group */
ret = iod_obj_create(coh, wtid, NULL, IOD_OBJ_KV,
NULL, NULL, &grp_id, NULL);
if(collective && (0 == ret || EEXISTS == ret)) {
/* group has been created by another process, open it */
if (iod_obj_open_write(coh, grp_id, NULL, &grp_oh, NULL) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "can't open Group");
}
else if(!collective && 0 != ret) {
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "can't create Group");
}
/* for the process that succeeded in creating the group, create
the scratch pad for it too */
if(0 == ret) {
/* create the metadata KV object for the group */
if(iod_obj_create(coh, wtid, NULL, IOD_OBJ_KV,
NULL, NULL, &mdkv_id, NULL) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "can't create metadata KV object");
/* create the attribute KV object for the group */
if(iod_obj_create(coh, wtid, NULL, IOD_OBJ_KV,
NULL, NULL, &attr_id, NULL) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "can't create metadata KV object");
/* set values for the scratch pad object */
sp.mdkv_id = mdkv_id;
sp.attr_id = attr_id;
sp.filler1_id = IOD_ID_UNDEFINED;
sp.filler2_id = IOD_ID_UNDEFINED;
/* set scratch pad in group */
if (iod_obj_set_scratch(grp_oh, wtid, &sp, NULL, NULL) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "can't set scratch pad");
/* store metadata */
/* Open Metadata KV object for write */
if (iod_obj_open_write(coh, mdkv_id, NULL, &mdkv_oh, NULL) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "can't create scratch pad");
if(H5P_DEFAULT == input->gcpl_id)
input->gcpl_id = H5Pcopy(H5P_GROUP_CREATE_DEFAULT);
gcpl_id = input->gcpl_id;
/* insert plist metadata */
if(H5VL_iod_insert_plist(mdkv_oh, wtid, gcpl_id,
NULL, NULL, NULL) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "can't insert KV value");
/* insert link count metadata */
if(H5VL_iod_insert_link_count(mdkv_oh, wtid, (uint64_t)1,
NULL, NULL, NULL) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "can't insert KV value");
/* insert object type metadata */
if(H5VL_iod_insert_object_type(mdkv_oh, wtid, H5I_GROUP,
NULL, NULL, NULL) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "can't insert KV value");
/* close Metadata KV object */
if(iod_obj_close(mdkv_oh, NULL, NULL))
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "can't close object");
/* add link in parent group to current object */
if(H5VL_iod_insert_new_link(cur_oh, wtid, last_comp,
H5L_TYPE_HARD, &grp_id, NULL, NULL, NULL) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "can't insert KV value");
} /* end if */
/* close parent group if it is not the location we started the
traversal into */
if(loc_handle.cookie != cur_oh.cookie) {
iod_obj_close(cur_oh, NULL, NULL);
}
#if H5_DO_NATIVE
grp_oh.cookie = H5Gcreate2(loc_handle.cookie, name, input->lcpl_id,
input->gcpl_id, input->gapl_id);
HDassert(grp_oh.cookie);
#endif
#if H5VL_IOD_DEBUG
fprintf(stderr, "Done with group create, sending response to client\n");
#endif
/* return the object handle for the group to the client */
output.iod_oh = grp_oh;
HG_Handler_start_output(op_data->hg_handle, &output);
done:
/* return an UNDEFINED oh to the client if the operation failed */
if(ret_value < 0) {
fprintf(stderr, "Failed Group Create\n");
output.iod_oh.cookie = IOD_OH_UNDEFINED;
HG_Handler_start_output(op_data->hg_handle, &output);
}
last_comp = (char *)H5MM_xfree(last_comp);
input = (group_create_in_t *)H5MM_xfree(input);
op_data = (op_data_t *)H5MM_xfree(op_data);
FUNC_LEAVE_NOAPI_VOID
} /* end H5VL_iod_server_group_create_cb() */
/*-------------------------------------------------------------------------
* Function: H5VL_iod_server_group_open_cb
*
* Purpose: Opens a group as a iod object.
*
* Return: Success: SUCCEED
* Failure: Negative
*
* Programmer: Mohamad Chaarawi
* February, 2013
*
*-------------------------------------------------------------------------
*/
void
H5VL_iod_server_group_open_cb(AXE_engine_t UNUSED axe_engine,
size_t UNUSED num_n_parents, AXE_task_t UNUSED n_parents[],
size_t UNUSED num_s_parents, AXE_task_t UNUSED s_parents[],
void *_op_data)
{
op_data_t *op_data = (op_data_t *)_op_data;
group_open_in_t *input = (group_open_in_t *)op_data->input;
group_open_out_t output;
iod_handle_t coh = input->coh;
iod_handle_t loc_handle = input->loc_oh; /* location handle to start lookup */
iod_obj_id_t loc_id = input->loc_id; /* The ID of the current location object */
const char *name = input->name; /* group name including path to open */
iod_trans_id_t rtid = input->rcxt_num;
iod_obj_id_t grp_id; /* The ID of the group that needs to be opened */
iod_handle_t grp_oh, mdkv_oh; /* The group handle and its metadata KV handle */
scratch_pad_t sp;
herr_t ret_value = SUCCEED;
FUNC_ENTER_NOAPI_NOINIT
#if H5VL_IOD_DEBUG
fprintf(stderr, "Start group open %s with Loc ID %llu\n", name, loc_id);
#endif
/* Traverse Path and open group */
if(H5VL_iod_server_open_path(coh, loc_id, loc_handle, name, rtid, &grp_id, &grp_oh) < 0)
HGOTO_ERROR(H5E_SYM, H5E_NOSPACE, FAIL, "can't open object");
/* get scratch pad of group */
if(iod_obj_get_scratch(grp_oh, rtid, &sp, NULL, NULL) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "can't get scratch pad for object");
/* open the metadata scratch pad */
if (iod_obj_open_write(coh, sp.mdkv_id, NULL /*hints*/, &mdkv_oh, NULL) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "can't open scratch pad");
/* MSC - retrieve metadata, need IOD */
#if 0
if(H5VL_iod_get_metadata(mdkv_oh, rtid, H5VL_IOD_PLIST,
H5VL_IOD_KEY_OBJ_CPL, NULL, NULL, &output.gcpl_id) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTGET, FAIL, "failed to retrieve gcpl");
if(H5VL_iod_get_metadata(mdkv_oh, rtid, H5VL_IOD_LINK_COUNT,
H5VL_IOD_KEY_OBJ_LINK_COUNT,
NULL, NULL, &output.link_count) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTGET, FAIL, "failed to retrieve link count");
#endif
/* close the metadata scratch pad */
if(iod_obj_close(mdkv_oh, NULL, NULL))
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "can't close meta data KV handle");
#if H5_DO_NATIVE
grp_oh.cookie = H5Gopen(loc_handle.cookie, name, input->gapl_id);
HDassert(grp_oh.cookie);
#endif
output.iod_id = grp_id;
output.iod_oh = grp_oh;
output.gcpl_id = H5P_GROUP_CREATE_DEFAULT;
#if H5VL_IOD_DEBUG
fprintf(stderr, "Done with group open, sending response to client\n");
#endif
HG_Handler_start_output(op_data->hg_handle, &output);
done:
if(ret_value < 0) {
output.iod_oh.cookie = IOD_OH_UNDEFINED;
output.iod_id = IOD_ID_UNDEFINED;
output.gcpl_id = H5P_GROUP_CREATE_DEFAULT;
HG_Handler_start_output(op_data->hg_handle, &output);
}
input = (group_open_in_t *)H5MM_xfree(input);
op_data = (op_data_t *)H5MM_xfree(op_data);
FUNC_LEAVE_NOAPI_VOID
} /* end H5VL_iod_server_group_open_cb() */
/*-------------------------------------------------------------------------
* Function: H5VL_iod_server_group_close_cb
*
* Purpose: Closes iod HDF5 group.
*
* Return: Success: SUCCEED
* Failure: Negative
*
* Programmer: Mohamad Chaarawi
* January, 2013
*
*-------------------------------------------------------------------------
*/
void
H5VL_iod_server_group_close_cb(AXE_engine_t UNUSED axe_engine,
size_t UNUSED num_n_parents, AXE_task_t UNUSED n_parents[],
size_t UNUSED num_s_parents, AXE_task_t UNUSED s_parents[],
void *_op_data)
{
op_data_t *op_data = (op_data_t *)_op_data;
group_close_in_t *input = (group_close_in_t *)op_data->input;
iod_handle_t iod_oh = input->iod_oh;
herr_t ret_value = SUCCEED;
FUNC_ENTER_NOAPI_NOINIT
#if H5VL_IOD_DEBUG
fprintf(stderr, "Start group close\n");
#endif
if(iod_oh.cookie != IOD_OH_UNDEFINED) {
#if H5_DO_NATIVE
ret_value = H5Gclose(iod_oh.cookie);
#endif
if((ret_value = iod_obj_close(iod_oh, NULL, NULL)) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "can't close object");
}
else {
/* MSC - need a way to kill object handle for this group */
fprintf(stderr, "I do not have the OH of this group to close it\n");
}
done:
#if H5VL_IOD_DEBUG
fprintf(stderr, "Done with group close, sending response to client\n");
#endif
HG_Handler_start_output(op_data->hg_handle, &ret_value);
input = (group_close_in_t *)H5MM_xfree(input);
op_data = (op_data_t *)H5MM_xfree(op_data);
FUNC_LEAVE_NOAPI_VOID
} /* end H5VL_iod_server_group_close_cb() */
#endif /* H5_HAVE_EFF */
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