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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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/****************/
/* Module Setup */
/****************/
/* Interface initialization */
#define H5_INTERFACE_INIT_FUNC H5V_init_interface
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5ESprivate.h" /* Event Stacks */
#include "H5Iprivate.h" /* IDs */
#include "H5Lprivate.h" /* Links */
#include "H5VMprivate.h" /* Memory management */
#include "H5Vprivate.h" /* Views */
#include "H5VLprivate.h" /* VOL plugins */
#include "H5VLiod_client.h" /* IOD VOL plugin */
#ifdef H5_HAVE_EFF
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Package Typedefs */
/********************/
/********************/
/* Local Prototypes */
/********************/
/*********************/
/* Package Variables */
/*********************/
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/* VIEW ID class */
static const H5I_class_t H5I_VIEW_CLS[1] = {{
H5I_VIEW, /* ID class value */
0, /* Class flags */
0, /* # of reserved IDs for class */
(H5I_free_t)H5V_close, /* Callback routine for closing objects of this class */
NULL /* Callback routine for closing auxilary objects of this class */
}};
/*-------------------------------------------------------------------------
* Function: H5V_init
*
* Purpose: Initialize the interface from some other package.
*
* Return: Success: non-negative
* Failure: negative
*
* Programmer: Mohamad Chaarawi
* July 2013
*
*-------------------------------------------------------------------------
*/
herr_t
H5V_init(void)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(FAIL)
/* FUNC_ENTER() does all the work */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5V_init() */
/*--------------------------------------------------------------------------
NAME
H5V_init_interface -- Initialize interface-specific information
USAGE
herr_t H5V_init_interface()
RETURNS
Non-negative on success/Negative on failure
DESCRIPTION
Initializes any interface-specific data or routines.
--------------------------------------------------------------------------*/
static herr_t
H5V_init_interface(void)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/*
* Create attribute ID type.
*/
if(H5I_register_type(H5I_VIEW_CLS) < 0)
HGOTO_ERROR(H5E_INTERNAL, H5E_CANTINIT, FAIL, "unable to initialize interface")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5V_init_interface() */
/*--------------------------------------------------------------------------
NAME
H5V_term_interface
PURPOSE
Terminate various H5V objects
USAGE
void H5V_term_interface()
RETURNS
DESCRIPTION
Release any other resources allocated.
GLOBAL VARIABLES
COMMENTS, BUGS, ASSUMPTIONS
Can't report errors...
EXAMPLES
REVISION LOG
--------------------------------------------------------------------------*/
int
H5V_term_interface(void)
{
int n = 0;
FUNC_ENTER_NOAPI_NOINIT_NOERR
if(H5_interface_initialize_g) {
if((n = H5I_nmembers(H5I_VIEW))>0) {
(void)H5I_clear_type(H5I_VIEW, FALSE, FALSE);
} else {
(void)H5I_dec_type_ref(H5I_VIEW);
H5_interface_initialize_g = 0;
n = 1;
}
}
FUNC_LEAVE_NOAPI(n)
} /* H5V_term_interface() */
/*-------------------------------------------------------------------------
* Function: H5Pset_view_elmt_scope
*
* Purpose: Sets the view creation property for the scope of
* constructing an element region.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Mohamad Chaarawi
* February, 2014
*
*-------------------------------------------------------------------------
*/
herr_t
H5Pset_view_elmt_scope(hid_t vcpl_id, hid_t space_id)
{
H5P_genplist_t *plist;
H5S_t *space = NULL, *new_space = NULL;
hid_t new_space_id;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE2("e", "ii", vcpl_id, space_id);
/* Check arguments */
if(NULL == (plist = H5P_object_verify(vcpl_id, H5P_VIEW_CREATE)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a view create property list");
/* Get the current view create property list for the region scope */
if(H5P_get(plist, H5V_CRT_ELMT_SCOPE_NAME, &space_id) < 0)
HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get dataspace")
/* Close the current dataspace if set */
if((space_id != -1) && (H5I_dec_ref(space_id) < 0))
HGOTO_ERROR(H5E_PLIST, H5E_CANTRELEASE, FAIL, "unable to close atom for dataspace")
if(NULL == (space = (H5S_t *)H5I_object_verify(space_id, H5I_DATASPACE)))
HGOTO_ERROR(H5E_PLIST, H5E_BADTYPE, FAIL, "not a dataspace")
/* Copy */
if(NULL == (new_space = H5S_copy(space, FALSE, TRUE)))
HGOTO_ERROR(H5E_DATASPACE, H5E_CANTINIT, FAIL, "unable to copy dataspace")
/* Atomize */
if((new_space_id = H5I_register (H5I_DATASPACE, new_space, TRUE)) < 0)
HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to register dataspace atom")
/* Set the view create property list for the region scope */
if(H5P_set(plist, H5V_CRT_ELMT_SCOPE_NAME, &new_space_id) < 0)
HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set dataspace scope for vcpl")
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Pset_view_elmt_scope() */
/*-------------------------------------------------------------------------
* Function: H5Pget_view_elmt_scope
*
* Purpose: Gets the view creation property for the scope of
* constructing an element region.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Mohamad Chaarawi
* February, 2014
*
*-------------------------------------------------------------------------
*/
herr_t
H5Pget_view_elmt_scope(hid_t vcpl_id, hid_t *_space_id)
{
H5P_genplist_t *plist; /* Property list pointer */
hid_t space_id;
herr_t ret_value=SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE2("e", "i*i", vcpl_id, _space_id);
if(NULL == _space_id)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid return pointer")
/* Get the plist structure */
if(NULL == (plist = H5P_object_verify(vcpl_id, H5P_VIEW_CREATE)))
HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID")
if(H5P_get(plist, H5V_CRT_ELMT_SCOPE_NAME, &space_id) < 0)
HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get dataspace scope for view")
if(space_id >= 0) {
H5S_t *space = NULL, *new_space = NULL;
if(NULL == (space = (H5S_t *)H5I_object_verify(space_id, H5I_DATASPACE)))
HGOTO_ERROR(H5E_PLIST, H5E_BADTYPE, FAIL, "not a dataspace")
/* Copy */
if(NULL == (new_space = H5S_copy(space, FALSE, TRUE)))
HGOTO_ERROR(H5E_DATASPACE, H5E_CANTINIT, FAIL, "unable to copy dataspace")
/* Atomize */
if((space_id = H5I_register (H5I_DATASPACE, new_space, TRUE)) < 0)
HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to register dataspace atom")
}
*_space_id = space_id;
done:
FUNC_LEAVE_API(ret_value);
} /* end H5Pget_view_elmt_scope() */
/*-------------------------------------------------------------------------
* Function: H5Vcreate_ff
*
* Purpose: The H5Vcreate routine creates a new view object from a
* query object. The view looks under loc_id and applies
* the query there.
*
* Return: Success: non-negative
* Failure: negative
*
* Programmer: Mohamad Chaarawi
* February 2014
*
*-------------------------------------------------------------------------
*/
hid_t
H5Vcreate_ff(hid_t loc_id, hid_t query_id, hid_t vcpl_id, hid_t rcxt_id, hid_t estack_id)
{
H5_priv_request_t *request = NULL; /* private request struct inserted in event queue */
void **req = NULL; /* pointer to plugin generate requests (Stays NULL if plugin does not support async */
void *view = NULL; /* pointer to view object created */
void *obj = NULL; /* object token of loc_id */
H5VL_t *vol_plugin; /* VOL plugin information */
hid_t ret_value;
FUNC_ENTER_API(FAIL)
H5TRACE5("i", "iiiii", loc_id, query_id, vcpl_id, rcxt_id, estack_id);
/* Get correct property list */
if(H5P_DEFAULT == vcpl_id)
vcpl_id = H5P_VIEW_CREATE_DEFAULT;
else
if(TRUE != H5P_isa_class(vcpl_id, H5P_VIEW_CREATE))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not view creation property list")
/* get the object */
if(NULL == (obj = (void *)H5VL_get_object(loc_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid object/file identifier")
/* get the plugin pointer */
if(NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(loc_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
if(vol_plugin->cls->value != IOD)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "only IOD plugin supports VIEW objects for now")
if(estack_id != H5_EVENT_STACK_NULL) {
/* create the private request */
if(NULL == (request = (H5_priv_request_t *)H5MM_calloc(sizeof(H5_priv_request_t))))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed")
request->req = NULL;
req = &request->req;
request->next = NULL;
request->vol_plugin = vol_plugin;
vol_plugin->nrefs ++;
}
/* call the IOD specific private routine to create a view object */
if(NULL == (view = H5VL_iod_view_create(obj, query_id, vcpl_id, rcxt_id, req)))
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "unable to create view")
if(request && *req) {
if(H5ES_insert(estack_id, request) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "failed to insert request in event stack")
}
/* Get an atom for the view */
if((ret_value = H5I_register2(H5I_VIEW, view, vol_plugin, TRUE)) < 0)
HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to atomize view handle")
done:
if (ret_value < 0 && view)
if(H5V_close (view) < 0)
HDONE_ERROR(H5E_SYM, H5E_CLOSEERROR, FAIL, "unable to release view")
FUNC_LEAVE_API(ret_value)
} /* end H5Vcreate_ff */
/*-------------------------------------------------------------------------
* Function: H5Vget_query
*
* Purpose: Returns the query used to construct the view.
* Returned query must be closed with H5Qclose().
*
* Return: Success: non-negative
* Failure: negative
*
* Programmer: Mohamad Chaarawi
* February 2014
*
*-------------------------------------------------------------------------
*/
herr_t
H5Vget_query(hid_t view_id, hid_t *query_id)
{
H5VL_iod_view_t *view = NULL;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE2("e", "i*i", view_id, query_id);
if(NULL == query_id)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid return pointer")
/* Check args */
if(NULL == (view = (H5VL_iod_view_t *)H5I_object_verify(view_id, H5I_VIEW)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not an view ID");
if(H5I_inc_ref(view->query_id, TRUE) < 0)
HGOTO_ERROR(H5E_ATOM, H5E_CANTINC, FAIL, "can't increment ID ref count");
*query_id = view->query_id;
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Vget_query */
/*-------------------------------------------------------------------------
* Function: H5Vget_counts
*
* Purpose: Returns the query used to construct the view.
* Returned query must be closed with H5Qclose().
*
* Return: Success: non-negative
* Failure: negative
*
* Programmer: Mohamad Chaarawi
* February 2014
*
*-------------------------------------------------------------------------
*/
herr_t
H5Vget_counts(hid_t view_id, hsize_t *attr_count, hsize_t *obj_count, hsize_t *elem_region_count)
{
H5VL_iod_view_t *view = NULL;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE4("e", "i*h*h*h", view_id, attr_count, obj_count, elem_region_count);
/* Check args */
if(NULL == (view = (H5VL_iod_view_t *)H5I_object_verify(view_id, H5I_VIEW)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not an view ID");
if(view->common.request) {
if(H5VL_IOD_PENDING == view->common.request->state) {
if(H5VL_iod_request_wait(view->common.file, view->common.request) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't wait on operation");
}
}
if(NULL != attr_count)
*attr_count = view->attr_info.count;
if(NULL != obj_count)
*obj_count = view->obj_info.count;
if(NULL != elem_region_count)
*elem_region_count = view->region_info.count;
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Vget_counts */
/*-------------------------------------------------------------------------
* Function: H5Vget_location_ff
*
* Purpose: Returns the root location where the view was constructed on.
* Musr be closed with H5Oclose (or corresponding object close op).
*
* Return: Success: non-negative
* Failure: negative
*
* Programmer: Mohamad Chaarawi
* February 2014
*
*-------------------------------------------------------------------------
*/
herr_t
H5Vget_location_ff(hid_t view_id, hid_t *loc_id, hid_t estack_id)
{
H5VL_t *vol_plugin = NULL; /* VOL plugin pointer this event queue should use */
H5_priv_request_t *request = NULL; /* private request struct inserted in event queue */
void **req = NULL; /* pointer to plugin generate requests (Stays NULL if plugin does not support async */
H5I_type_t opened_type;
void *opened_obj = NULL;
H5VL_iod_view_t *view = NULL;
H5TR_t tr;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE3("e", "i*ii", view_id, loc_id, estack_id);
if(NULL == loc_id)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid return pointer")
/* Check args */
if(NULL == (view = (H5VL_iod_view_t *)H5I_object_verify(view_id, H5I_VIEW)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not an view ID");
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(view_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information");
if(estack_id != H5_EVENT_STACK_NULL) {
/* create the private request */
if(NULL == (request = (H5_priv_request_t *)H5MM_calloc(sizeof(H5_priv_request_t))))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed");
request->req = NULL;
req = &request->req;
request->next = NULL;
request->vol_plugin = vol_plugin;
vol_plugin->nrefs ++;
}
tr.file = view->common.file;
tr.trans_num = view->c_version;
tr.req_info.request = NULL;
tr.req_info.head = NULL;
tr.req_info.tail = NULL;
tr.req_info.num_req = 0;
if(NULL == (opened_obj = H5VL_iod_obj_open_token(view->loc_info.buf,
&tr, &opened_type, req)))
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "unable to open object");
if(request && *req) {
/* insert in stack */
if(H5ES_insert(estack_id, request) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "failed to insert request in event stack");
}
vol_plugin->nrefs ++;
/* create hid_t for opened object */
if ((*loc_id = H5VL_object_register(opened_obj, opened_type, vol_plugin, TRUE)) < 0)
HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to atomize object handle")
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Vget_location_ff */
/*-------------------------------------------------------------------------
* Function: H5Vget_elem_regions_ff
*
* Purpose: Returns the root location where the view was constructed on.
* Musr be closed with H5Oclose (or corresponding object close op).
*
* Return: Success: non-negative
* Failure: negative
*
* Programmer: Mohamad Chaarawi
* February 2014
*
*-------------------------------------------------------------------------
*/
herr_t
H5Vget_elem_regions_ff(hid_t view_id, hsize_t start, hsize_t count, hid_t dataset_id[],
hid_t dataspace_id[], hid_t estack_id)
{
H5VL_t *vol_plugin = NULL; /* VOL plugin pointer this event queue should use */
H5VL_iod_view_t *view = NULL;
hsize_t i, k = 0;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE6("e", "ihh*i*ii", view_id, start, count, dataset_id, dataspace_id,
estack_id);
/* Check args */
if(NULL == (view = (H5VL_iod_view_t *)H5I_object_verify(view_id, H5I_VIEW)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not an view ID");
if(view->common.request) {
if(H5VL_IOD_PENDING == view->common.request->state) {
if(H5VL_iod_request_wait(view->common.file, view->common.request) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't wait on operation");
}
}
if(start >= view->region_info.count || start+count > view->region_info.count)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "start/count out of range")
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(view_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information");
for(i=start; i<count; i++) {
H5_priv_request_t *request = NULL; /* private request struct inserted in event queue */
void **req = NULL; /* pointer to plugin generate requests (Stays NULL if plugin does not support async */
H5I_type_t opened_type;
void *opened_obj = NULL;
H5TR_t tr;
if(estack_id != H5_EVENT_STACK_NULL) {
/* create the private request */
if(NULL == (request = (H5_priv_request_t *)H5MM_calloc(sizeof(H5_priv_request_t))))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed");
request->req = NULL;
req = &request->req;
request->next = NULL;
request->vol_plugin = vol_plugin;
vol_plugin->nrefs ++;
}
tr.file = view->common.file;
tr.trans_num = view->c_version;
tr.req_info.request = NULL;
tr.req_info.head = NULL;
tr.req_info.tail = NULL;
tr.req_info.num_req = 0;
if(NULL == (opened_obj = H5VL_iod_obj_open_token(view->region_info.tokens[i].buf,
&tr, &opened_type, req)))
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "unable to open object");
HDassert(H5I_DATASET == opened_type);
if(request && *req) {
/* insert in stack */
if(H5ES_insert(estack_id, request) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "failed to insert request in event stack");
}
vol_plugin->nrefs ++;
/* create hid_t for opened object */
if ((dataset_id[k] = H5VL_object_register(opened_obj, opened_type, vol_plugin, TRUE)) < 0)
HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to atomize object handle");
if(H5I_inc_ref(view->region_info.regions[i], TRUE) < 0)
HGOTO_ERROR(H5E_ATOM, H5E_CANTINC, FAIL, "can't increment ID ref count");
dataspace_id[k] = view->region_info.regions[i];
k++;
}
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Vget_elem_regions_ff */
/*-------------------------------------------------------------------------
* Function: H5Vclose
*
* Purpose:
* The H5Vclose routine terminates access to a view, given by
* view_id.
*
* Return: Success: non-negative
* Failure: negative
*
* Programmer: Mohamad Chaarawi
* February 2014
*
*-------------------------------------------------------------------------
*/
herr_t
H5Vclose(hid_t view_id)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE1("e", "i", view_id);
/* Check args */
if(NULL == H5I_object_verify(view_id,H5I_VIEW))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not an view ID")
if(H5I_dec_app_ref(view_id) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTRELEASE, FAIL, "unable to close view")
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Vclose_ff */
/*-------------------------------------------------------------------------
* Function: H5V_close
*
* Purpose: Closes the specified view.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Mohamad Chaarawi
* February 2014
*
*-------------------------------------------------------------------------
*/
herr_t
H5V_close(void *view)
{
herr_t ret_value = SUCCEED;
FUNC_ENTER_NOAPI_NOINIT
if((ret_value = H5VL_iod_view_close((H5VL_iod_view_t *)view)) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CLOSEERROR, FAIL, "unable to close view")
done:
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5V_close() */
#endif /* H5_HAVE_EFF */
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