philipp/hdf5
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
Files
2d6d5cad0cc426cd53b9d4fda15e53d8021e4c7b
hdf5/src/H5Tcommit.c
Dana Robinson 2d6d5cad0c Updates to the VOL ID and object API calls. 
This brings the H5VL code in line with the H5I code regarding
naming, parameter order, etc.

Several public API calls were affected by this change.

These changed names to reflect their use with VOL drivers:
    H5VLregister()          -->     H5VLregister_driver()
    H5VLregister_by_name()  -->     H5VLregister_driver_by_name()
    H5VLunregister()        -->     H5VLunregister_driver()
    H5VLis_registered()     -->     H5VLis_driver_registered()

This call was renamed to match H5Iregister(). The order of the first
two parameters also reversed and the object pointer is now const.
    H5VLobject_register()   -->     H5VLregister()
2018-10-17 02:06:28 -07:00

1271 lines
46 KiB
C
Raw Blame History

This file contains invisible Unicode characters
This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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 COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Module Info: This module contains the functionality for committing datatypes
* to a file for the H5T interface.
*/
/****************/
/* Module Setup */
/****************/
#include "H5Tmodule.h" /* This source code file is part of the H5T module */
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5ACprivate.h" /* Metadata cache */
#include "H5CXprivate.h" /* API Contexts */
#include "H5Eprivate.h" /* Error handling */
#include "H5FLprivate.h" /* Free lists */
#include "H5FOprivate.h" /* File objects */
#include "H5Iprivate.h" /* IDs */
#include "H5Lprivate.h" /* Links */
#include "H5MMprivate.h" /* Memory Management */
#include "H5Oprivate.h" /* Object headers */
#include "H5Pprivate.h" /* Property lists */
#include "H5Tpkg.h" /* Datatypes */
#include "H5VLprivate.h" /* Virtual Object Layer */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Package Typedefs */
/********************/
/********************/
/* Local Prototypes */
/********************/
static H5T_t *H5T__open_oid(const H5G_loc_t *loc);
/*********************/
/* Public Variables */
/*********************/
/*********************/
/* Package Variables */
/*********************/
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/* Declare a free list to manage the H5VL_t struct */
H5FL_EXTERN(H5VL_t);
/* Declare a free list to manage the H5VL_object_t struct */
H5FL_EXTERN(H5VL_object_t);
/*-------------------------------------------------------------------------
* Function: H5Tcommit2
*
* Purpose: Save a transient datatype to a file and turn the type handle
* into a "named", immutable type.
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5Tcommit2(hid_t loc_id, const char *name, hid_t type_id, hid_t lcpl_id,
hid_t tcpl_id, hid_t tapl_id)
{
void *data = NULL; /* VOL-managed datatype data */
H5VL_object_t *new_obj = NULL; /* VOL object that holds the datatype object and the VOL info */
H5T_t *dt = NULL; /* High level datatype object that wraps the VOL object */
H5VL_object_t *vol_obj = NULL; /* object token of loc_id */
H5VL_loc_params_t loc_params;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE6("e", "i*siiii", loc_id, name, type_id, lcpl_id, tcpl_id, tapl_id);
/* Check arguments */
if(!name)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "name parameter cannot be NULL")
if(!*name)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "name parameter cannot be an empty string")
if(NULL == (dt = (H5T_t *)H5I_object_verify(type_id, H5I_DATATYPE)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
if(H5T_is_named(dt))
HGOTO_ERROR(H5E_ARGS, H5E_CANTSET, FAIL, "datatype is already committed")
/* Get correct property list */
if(H5P_DEFAULT == lcpl_id)
lcpl_id = H5P_LINK_CREATE_DEFAULT;
else
if(TRUE != H5P_isa_class(lcpl_id, H5P_LINK_CREATE))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not link creation property list")
/* Get correct property list */
if (H5P_DEFAULT == tcpl_id)
tcpl_id = H5P_DATATYPE_CREATE_DEFAULT;
else
if(TRUE != H5P_isa_class(tcpl_id, H5P_DATATYPE_CREATE))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not datatype creation property list")
/* Verify access property list and set up collective metadata if appropriate */
if(H5CX_set_apl(&tapl_id, H5P_CLS_TACC, loc_id, TRUE) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTSET, FAIL, "can't set access property list info")
/* Fill in location struct fields */
loc_params.type = H5VL_OBJECT_BY_SELF;
loc_params.obj_type = H5I_get_type(loc_id);
/* Get the object from the loc_id */
if(NULL == (vol_obj = (H5VL_object_t *)H5I_object(loc_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid object identifier")
/* Commit the type */
if(NULL == (data = H5VL_datatype_commit(vol_obj->data, loc_params, vol_obj->driver->cls,
name, type_id, lcpl_id, tcpl_id, tapl_id,
H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL)))
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to commit datatype")
/* Set up VOL object */
if(NULL == (new_obj = H5FL_CALLOC(H5VL_object_t)))
HGOTO_ERROR(H5E_VOL, H5E_NOSPACE, FAIL, "can't allocate top object structure")
new_obj->driver = vol_obj->driver;
new_obj->driver->nrefs ++;
new_obj->data = data;
/* Set the committed type object to the VOL driver pointer in the H5T_t struct */
dt->vol_obj = new_obj;
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Tcommit2() */
/*-------------------------------------------------------------------------
* Function: H5T__commit_named
*
* Purpose: Internal routine to save a transient datatype to a file and
* turn the type ID into a "named", immutable type.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Quincey Koziol
* April 5, 2007
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__commit_named(const H5G_loc_t *loc, const char *name, H5T_t *dt,
hid_t lcpl_id, hid_t tcpl_id)
{
H5O_obj_create_t ocrt_info; /* Information for object creation */
H5T_obj_create_t tcrt_info; /* Information for named datatype creation */
H5T_state_t old_state; /* The state of the datatype before H5T__commit. */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
/* Sanity checks */
HDassert(loc);
HDassert(name && *name);
HDassert(dt);
HDassert(lcpl_id != H5P_DEFAULT);
HDassert(tcpl_id != H5P_DEFAULT);
/* Record the type's state so that we can revert to it if linking fails */
old_state = dt->shared->state;
/* Set up named datatype creation info */
tcrt_info.dt = dt;
tcrt_info.tcpl_id = tcpl_id;
/* Set up object creation information */
ocrt_info.obj_type = H5O_TYPE_NAMED_DATATYPE;
ocrt_info.crt_info = &tcrt_info;
ocrt_info.new_obj = NULL;
/* Create the new named datatype and link it to its parent group */
if(H5L_link_object(loc, name, &ocrt_info, lcpl_id) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to create and link to named datatype")
HDassert(ocrt_info.new_obj);
done:
/* If the datatype was committed but something failed after that, we need
* to return it to the state it was in before it was committed.
*/
if(ret_value < 0 && (NULL != ocrt_info.new_obj)) {
if(dt->shared->state == H5T_STATE_OPEN && dt->sh_loc.type == H5O_SHARE_TYPE_COMMITTED) {
/* Remove the datatype from the list of opened objects in the file */
if(H5FO_top_decr(dt->sh_loc.file, dt->sh_loc.u.loc.oh_addr) < 0)
HDONE_ERROR(H5E_DATASET, H5E_CANTRELEASE, FAIL, "can't decrement count for object")
if(H5FO_delete(dt->sh_loc.file, dt->sh_loc.u.loc.oh_addr) < 0)
HDONE_ERROR(H5E_DATASET, H5E_CANTRELEASE, FAIL, "can't remove dataset from list of open objects")
/* Close the datatype object */
if(H5O_close(&(dt->oloc), NULL) < 0)
HDONE_ERROR(H5E_DATATYPE, H5E_CLOSEERROR, FAIL, "unable to release object header")
/* Remove the datatype's object header from the file */
if(H5O_delete(dt->sh_loc.file, dt->sh_loc.u.loc.oh_addr) < 0)
HDONE_ERROR(H5E_DATATYPE, H5E_CANTDELETE, FAIL, "unable to delete object header")
/* Mark datatype as being back in memory */
if(H5T_set_loc(dt, dt->sh_loc.file, H5T_LOC_MEMORY))
HDONE_ERROR(H5E_DATATYPE, H5E_CANTDELETE, FAIL, "unable to return datatype to memory")
dt->sh_loc.type = H5O_SHARE_TYPE_UNSHARED;
dt->shared->state = old_state;
} /* end if */
} /* end if */
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T__commit_named() */
/*-------------------------------------------------------------------------
* Function: H5Tcommit_anon
*
* Purpose: Save a transient datatype to a file and turn the type handle
* into a "named", immutable type.
*
* The resulting ID should be linked into the file with
* H5Olink or it will be deleted when closed.
*
* Note: The datatype access property list is unused currently, but
* is checked for sanity anyway.
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5Tcommit_anon(hid_t loc_id, hid_t type_id, hid_t tcpl_id, hid_t tapl_id)
{
void *dt = NULL; /* datatype object created by VOL plugin */
H5VL_object_t *new_obj = NULL; /* VOL object that holds the datatype object and the VOL info */
H5T_t *type = NULL; /* Datatype created */
H5VL_object_t *vol_obj = NULL; /* object token of loc_id */
H5VL_loc_params_t loc_params;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE4("e", "iiii", loc_id, type_id, tcpl_id, tapl_id);
/* Check arguments */
if(NULL == (type = (H5T_t *)H5I_object_verify(type_id, H5I_DATATYPE)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
if(H5T_is_named(type))
HGOTO_ERROR(H5E_ARGS, H5E_CANTSET, FAIL, "datatype is already committed")
/* Get correct property list */
if(H5P_DEFAULT == tcpl_id)
tcpl_id = H5P_DATATYPE_CREATE_DEFAULT;
else
if(TRUE != H5P_isa_class(tcpl_id, H5P_DATATYPE_CREATE))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not datatype creation property list")
/* Verify access property list and set up collective metadata if appropriate */
if(H5CX_set_apl(&tapl_id, H5P_CLS_TACC, loc_id, TRUE) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTSET, FAIL, "can't set access property list info")
/* Fill in location struct fields */
loc_params.type = H5VL_OBJECT_BY_SELF;
loc_params.obj_type = H5I_get_type(loc_id);
/* Get the file object */
if(NULL == (vol_obj = (H5VL_object_t *)H5I_object(loc_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
/* Commit the datatype */
if(NULL == (dt = H5VL_datatype_commit(vol_obj->data, loc_params, vol_obj->driver->cls,
NULL, type_id, H5P_DEFAULT, tcpl_id, tapl_id,
H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL)))
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to commit datatype")
/* Setup VOL object */
if(NULL == (new_obj = H5FL_CALLOC(H5VL_object_t)))
HGOTO_ERROR(H5E_VOL, H5E_NOSPACE, FAIL, "can't allocate top object structure")
new_obj->driver = vol_obj->driver;
new_obj->driver->nrefs ++;
new_obj->data = dt;
/* Set the committed type object to the VOL pluging pointer in the H5T_t struct */
type->vol_obj = new_obj;
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Tcommit_anon() */
/*-------------------------------------------------------------------------
* Function: H5T__commit_anon
*
* Purpose: Create an anonymous committed datatype.
*
* Return: SUCCEED/FAIL
*
* Programmer: Quincey Koziol
* Tuesday, December 12, 2017
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__commit_anon(H5F_t *file, H5T_t *type, hid_t tcpl_id)
{
H5O_loc_t *oloc; /* Object location for datatype */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
/* Sanity checks */
HDassert(file);
HDassert(type);
HDassert(tcpl_id != H5P_DEFAULT);
/* Commit the type */
if(H5T__commit(file, type, tcpl_id) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to commit datatype")
/* Release the datatype's object header */
/* Get the new committed datatype's object location */
if(NULL == (oloc = H5T_oloc(type)))
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "unable to get object location of committed datatype")
/* Decrement refcount on committed datatype's object header in memory */
if(H5O_dec_rc_by_loc(oloc) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTDEC, FAIL, "unable to decrement refcount on newly created object")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* H5T__commit_anon() */
/*-------------------------------------------------------------------------
* Function: H5T__commit
*
* Purpose: Commit a type, giving it a name and causing it to become
* immutable.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Monday, June 1, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__commit(H5F_t *file, H5T_t *type, hid_t tcpl_id)
{
H5O_loc_t temp_oloc; /* Temporary object header location */
H5G_name_t temp_path; /* Temporary path */
hbool_t loc_init = FALSE; /* Have temp_oloc and temp_path been initialized? */
size_t dtype_size; /* Size of the datatype message */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
HDassert(file);
HDassert(type);
HDassert(tcpl_id != H5P_DEFAULT);
/* Check if we are allowed to write to this file */
if(0 == (H5F_INTENT(file) & H5F_ACC_RDWR))
HGOTO_ERROR(H5E_DATATYPE, H5E_WRITEERROR, FAIL, "no write intent on file")
/*
* Check arguments. We cannot commit an immutable type because H5Tclose()
* normally fails on such types (try H5Tclose(H5T_NATIVE_INT)) but closing
* a named type should always succeed.
*/
if(H5T_STATE_NAMED == type->shared->state || H5T_STATE_OPEN == type->shared->state)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "datatype is already committed")
if(H5T_STATE_IMMUTABLE == type->shared->state)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "datatype is immutable")
/* Check for a "sensible" datatype to store on disk */
if(H5T_is_sensible(type) <= 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "datatype is not sensible")
/* Mark datatype as being on disk now. This step changes the size of
* datatype as stored on disk.
*/
if(H5T_set_loc(type, file, H5T_LOC_DISK) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "cannot mark datatype on disk")
/* Reset datatype location and path */
if(H5O_loc_reset(&temp_oloc) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTRESET, FAIL, "unable to initialize location")
if(H5G_name_reset(&temp_path) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTRESET, FAIL, "unable to initialize path")
loc_init = TRUE;
/* Set the version for datatype */
if(H5T_set_version(file, type) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTSET, FAIL, "can't set version of datatype")
/* Calculate message size information, for creating object header */
dtype_size = H5O_msg_size_f(file, tcpl_id, H5O_DTYPE_ID, type, (size_t)0);
HDassert(dtype_size);
/*
* Create the object header and open it for write access. Insert the data
* type message and then give the object header a name.
*/
if(H5O_create(file, dtype_size, (size_t)1, tcpl_id, &temp_oloc) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to create datatype object header")
if(H5O_msg_create(&temp_oloc, H5O_DTYPE_ID, H5O_MSG_FLAG_CONSTANT | H5O_MSG_FLAG_DONTSHARE, H5O_UPDATE_TIME, type) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to update type header message")
/* Copy the new object header's location into the datatype, taking ownership of it */
if(H5O_loc_copy(&(type->oloc), &temp_oloc, H5_COPY_SHALLOW) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to copy datatype location")
if(H5G_name_copy(&(type->path), &temp_path, H5_COPY_SHALLOW) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to copy datatype location")
loc_init = FALSE;
/* Set the shared info fields */
H5T_update_shared(type);
type->shared->state = H5T_STATE_OPEN;
type->shared->fo_count = 1;
/* Add datatype to the list of open objects in the file */
if(H5FO_top_incr(type->sh_loc.file, type->sh_loc.u.loc.oh_addr) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINC, FAIL, "can't incr object ref. count")
if(H5FO_insert(type->sh_loc.file, type->sh_loc.u.loc.oh_addr, type->shared, TRUE) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINSERT, FAIL, "can't insert datatype into list of open objects")
/* Mark datatype as being on memory again. Since this datatype may still be
* used in memory after committed to disk, change its size back as in memory.
*/
if(H5T_set_loc(type, NULL, H5T_LOC_MEMORY) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "cannot mark datatype in memory")
done:
if(ret_value < 0) {
if(loc_init) {
H5O_loc_free(&temp_oloc);
H5G_name_free(&temp_path);
} /* end if */
if((type->shared->state == H5T_STATE_TRANSIENT || type->shared->state == H5T_STATE_RDONLY) && (type->sh_loc.type == H5O_SHARE_TYPE_COMMITTED)) {
if(H5O_dec_rc_by_loc(&(type->oloc)) < 0)
HDONE_ERROR(H5E_DATATYPE, H5E_CANTDEC, FAIL, "unable to decrement refcount on newly created object")
if(H5O_close(&(type->oloc), NULL) < 0)
HDONE_ERROR(H5E_DATATYPE, H5E_CLOSEERROR, FAIL, "unable to release object header")
if(H5O_delete(file, type->sh_loc.u.loc.oh_addr) < 0)
HDONE_ERROR(H5E_DATATYPE, H5E_CANTDELETE, FAIL, "unable to delete object header")
type->sh_loc.type = H5O_SHARE_TYPE_UNSHARED;
} /* end if */
} /* end if */
FUNC_LEAVE_NOAPI(ret_value)
} /* H5T__commit() */
/*-------------------------------------------------------------------------
* Function: H5Tcommitted
*
* Purpose: Determines if a datatype is committed or not.
*
* Return: TRUE/FALSE/FAIL
*
*-------------------------------------------------------------------------
*/
htri_t
H5Tcommitted(hid_t type_id)
{
H5T_t *type; /* Datatype to query */
htri_t ret_value; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE1("t", "i", type_id);
/* Check arguments */
if(NULL == (type = (H5T_t *)H5I_object_verify(type_id, H5I_DATATYPE)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
/* Set return value */
ret_value = H5T_is_named(type);
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Tcommitted() */
/*-------------------------------------------------------------------------
* Function: H5T_link
*
* Purpose: Adjust the link count for an object header by adding
* ADJUST to the link count.
*
* Return: Success: New link count
* Failure: Negative
*
* Programmer: Quincey Koziol
* Friday, September 26, 2003
*
*-------------------------------------------------------------------------
*/
int
H5T_link(const H5T_t *type, int adjust)
{
int ret_value = -1; /* Return value */
FUNC_ENTER_NOAPI((-1))
HDassert(type);
HDassert(type->sh_loc.type == H5O_SHARE_TYPE_COMMITTED);
/* Adjust the link count on the named datatype */
if((ret_value = H5O_link(&type->oloc, adjust)) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_LINKCOUNT, (-1), "unable to adjust named datatype link count")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T_link() */
/*-------------------------------------------------------------------------
* Function: H5Topen2
*
* Purpose: Opens a named datatype using a Datatype Access Property
* List.
*
* Return: Success: Object ID of the named datatype
*
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
hid_t
H5Topen2(hid_t loc_id, const char *name, hid_t tapl_id)
{
void *dt = NULL; /* datatype token created by VOL driver */
H5VL_object_t *vol_obj = NULL; /* object token of loc_id */
H5VL_loc_params_t loc_params;
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_API(H5I_INVALID_HID)
H5TRACE3("i", "i*si", loc_id, name, tapl_id);
/* Check args */
if(!name)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, H5I_INVALID_HID, "name parameter cannot be NULL")
if(!*name)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, H5I_INVALID_HID, "name parameter cannot be an empty string")
/* Verify access property list and set up collective metadata if appropriate */
if(H5CX_set_apl(&tapl_id, H5P_CLS_TACC, loc_id, FALSE) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTSET, FAIL, "can't set access property list info")
/* Fill in location struct fields */
loc_params.type = H5VL_OBJECT_BY_SELF;
loc_params.obj_type = H5I_get_type(loc_id);
/* get the location object */
if(NULL == (vol_obj = (H5VL_object_t *)H5I_object(loc_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5I_INVALID_HID, "invalid file identifier")
/* Open the datatype */
if(NULL == (dt = H5VL_datatype_open(vol_obj->data, loc_params, vol_obj->driver->cls,
name, tapl_id, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL)))
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTOPENOBJ, H5I_INVALID_HID, "unable to open named datatype")
/* Register the type and return the ID */
if((ret_value = H5VL_register(H5I_DATATYPE, dt, vol_obj->driver, TRUE)) < 0)
HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, H5I_INVALID_HID, "unable to register named datatype")
done:
/* Cleanup on error */
if(H5I_INVALID_HID == ret_value)
if(dt && H5VL_datatype_close(dt, vol_obj->driver->cls, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL) < 0)
HDONE_ERROR(H5E_DATATYPE, H5E_CLOSEERROR, H5I_INVALID_HID, "unable to release datatype")
FUNC_LEAVE_API(ret_value)
} /* end H5Topen2() */
/*-------------------------------------------------------------------------
* Function: H5Tget_create_plist
*
* Purpose: Returns a copy of the datatype creation property list.
*
* Note: There are no datatype creation properties currently, just
* object creation ones.
*
* Return: Success: ID for a copy of the datatype creation
* property list. The property list ID should be
* released by calling H5Pclose().
*
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
hid_t
H5Tget_create_plist(hid_t dtype_id)
{
H5T_t *type = NULL; /* Datatype object for ID */
htri_t is_named = FAIL; /* Is the datatype named? */
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_API(H5I_INVALID_HID)
H5TRACE1("i", "i", dtype_id);
/* Check arguments */
if(NULL == (type = (H5T_t *)H5I_object_verify(dtype_id, H5I_DATATYPE)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5I_INVALID_HID, "not a datatype")
/* Check if the datatype is committed */
if(FAIL == (is_named = H5T_is_named(type)))
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, H5I_INVALID_HID, "can't check whether datatype is committed")
/* If the datatype is not committed/named, just copy the default
* creation property list and return that.
*/
if(FALSE == is_named) {
H5P_genplist_t *tcpl_plist = NULL;
/* Copy the default datatype creation property list */
if(NULL == (tcpl_plist = (H5P_genplist_t *)H5I_object(H5P_LST_DATATYPE_CREATE_ID_g)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5I_INVALID_HID, "can't get default creation property list")
if((ret_value = H5P_copy_plist(tcpl_plist, TRUE)) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, H5I_INVALID_HID, "unable to copy the creation property list")
}
/* If the datatype is committed, retrieve further information */
else {
H5VL_object_t *vol_obj = type->vol_obj;
/* Get the property list through the VOL */
if(H5VL_datatype_get(vol_obj->data, vol_obj->driver->cls, H5VL_DATATYPE_GET_TCPL,
H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL, &ret_value) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, H5I_INVALID_HID, "can't get object creation info")
}
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Tget_create_plist() */
/*-------------------------------------------------------------------------
* Function: H5Tflush
*
* Purpose: Flushes all buffers associated with a named datatype to disk.
*
* Return: Non-negative on success, negative on failure
*
* Programmer: Mike McGreevy
* May 19, 2010
*
*-------------------------------------------------------------------------
*/
herr_t
H5Tflush(hid_t type_id)
{
H5T_t *dt; /* Datatype for this operation */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE1("e", "i", type_id);
/* Check args */
if(NULL == (dt = (H5T_t *)H5I_object_verify(type_id, H5I_DATATYPE)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
if(!H5T_is_named(dt))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a committed datatype")
/* Set up collective metadata if appropriate */
if(H5CX_set_loc(type_id) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTSET, FAIL, "can't set access property list info")
/* Flush metadata for named datatype */
if(dt->vol_obj)
if((ret_value = H5VL_datatype_specific(dt->vol_obj->data, dt->vol_obj->driver->cls, H5VL_DATATYPE_FLUSH,
H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL, type_id)) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTFLUSH, FAIL, "unable to flush datatype")
done:
FUNC_LEAVE_API(ret_value)
} /* H5Tflush */
/*-------------------------------------------------------------------------
* Function: H5Trefresh
*
* Purpose: Refreshes all buffers associated with a named datatype.
*
* Return: Non-negative on success, negative on failure
*
* Programmer: Mike McGreevy
* July 21, 2010
*
*-------------------------------------------------------------------------
*/
herr_t
H5Trefresh(hid_t type_id)
{
H5T_t *dt; /* Datatype for this operation */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE1("e", "i", type_id);
/* Check args */
if(NULL == (dt = (H5T_t *)H5I_object_verify(type_id, H5I_DATATYPE)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
if(!H5T_is_named(dt))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a committed datatype")
/* Set up collective metadata if appropriate */
if(H5CX_set_loc(type_id) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTSET, FAIL, "can't set access property list info")
/* Refresh the datatype's metadata */
if(dt->vol_obj)
if((ret_value = H5VL_datatype_specific(dt->vol_obj->data, dt->vol_obj->driver->cls, H5VL_DATATYPE_REFRESH,
H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL, type_id)) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTLOAD, FAIL, "unable to refresh datatype")
done:
FUNC_LEAVE_API(ret_value)
} /* H5Trefresh */
/*-------------------------------------------------------------------------
* Function: H5T__get_create_plist
*
* Purpose: Returns a copy of the datatype creation property list.
*
* Note: There are no datatype creation properties currently, just
* object creation ones.
*
* Return: Success: ID for a copy of the datatype creation
* property list. The property list ID should be
* released by calling H5Pclose().
*
* Failure: H5I_INVALID_HID
*
* Programmer: Quincey Koziol
* Wednesday, December 13, 2017
*
*-------------------------------------------------------------------------
*/
hid_t
H5T__get_create_plist(const H5T_t *type)
{
H5P_genplist_t *tcpl_plist; /* Existing datatype creation propertty list */
H5P_genplist_t *new_plist; /* New datatype creation property list */
hid_t new_tcpl_id = FAIL; /* New datatype creation property list */
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_PACKAGE
/* Sanity check */
HDassert(type);
/* Copy the default datatype creation property list */
if(NULL == (tcpl_plist = (H5P_genplist_t *)H5I_object(H5P_LST_DATATYPE_CREATE_ID_g)))
HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, H5I_INVALID_HID, "can't get default creation property list")
if((new_tcpl_id = H5P_copy_plist(tcpl_plist, TRUE)) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, H5I_INVALID_HID, "unable to copy the creation property list")
/* Get property list object for new TCPL */
if(NULL == (new_plist = (H5P_genplist_t *)H5I_object(new_tcpl_id)))
HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, H5I_INVALID_HID, "can't get property list")
/* Retrieve any object creation properties */
if(H5O_get_create_plist(&type->oloc, new_plist) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, H5I_INVALID_HID, "can't get object creation info")
/* Set the return value */
ret_value = new_tcpl_id;
done:
if(ret_value < 0)
if(new_tcpl_id > 0)
if(H5I_dec_app_ref(new_tcpl_id) < 0)
HDONE_ERROR(H5E_DATATYPE, H5E_CANTDEC, H5I_INVALID_HID, "unable to close temporary object")
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T__get_create_plist() */
/*-------------------------------------------------------------------------
* Function: H5T__open_name
*
* Purpose: Open a named datatype.
*
* Return: Success: Ptr to a new datatype.
* Failure: NULL
*
* Programmer: Quincey Koziol
* Wednesday, December 13, 2017
*
*-------------------------------------------------------------------------
*/
H5T_t *
H5T__open_name(const H5G_loc_t *loc, const char *name)
{
H5T_t *dt = NULL; /* Datatype opened in file */
H5G_name_t path; /* Datatype group hier. path */
H5O_loc_t oloc; /* Datatype object location */
H5G_loc_t type_loc; /* Group object for datatype */
H5O_type_t obj_type; /* Type of object at location */
hbool_t obj_found = FALSE; /* Object at 'name' found */
H5T_t *ret_value = NULL; /* Return value */
FUNC_ENTER_PACKAGE
/* Sanity check */
HDassert(loc);
HDassert(name);
/* Set up datatype location to fill in */
type_loc.oloc = &oloc;
type_loc.path = &path;
H5G_loc_reset(&type_loc);
/*
* Find the named datatype object header and read the datatype message
* from it.
*/
if(H5G_loc_find(loc, name, &type_loc/*out*/) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_NOTFOUND, NULL, "not found")
obj_found = TRUE;
/* Check that the object found is the correct type */
if(H5O_obj_type(&oloc, &obj_type) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, NULL, "can't get object type")
if(obj_type != H5O_TYPE_NAMED_DATATYPE)
HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, NULL, "not a named datatype")
/* Open it */
if(NULL == (dt = H5T_open(&type_loc)))
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTOPENOBJ, NULL, "unable to open named datatype")
ret_value = dt;
done:
/* Error cleanup */
if(NULL == ret_value)
if(obj_found && H5F_addr_defined(type_loc.oloc->addr))
if(H5G_loc_free(&type_loc) < 0)
HDONE_ERROR(H5E_DATATYPE, H5E_CANTRELEASE, NULL, "can't free location")
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T__open_name() */
/*-------------------------------------------------------------------------
* Function: H5T_open
*
* Purpose: Open a named datatype.
*
* Return: Success: Ptr to a new datatype.
*
* Failure: NULL
*
* Programmer: Robb Matzke
* Monday, June 1, 1998
*
*-------------------------------------------------------------------------
*/
H5T_t *
H5T_open(const H5G_loc_t *loc)
{
H5T_shared_t *shared_fo = NULL;
H5T_t *dt = NULL;
H5T_t *ret_value = NULL; /* Return value */
FUNC_ENTER_NOAPI(NULL)
HDassert(loc);
/* Check if datatype was already open */
if(NULL == (shared_fo = (H5T_shared_t *)H5FO_opened(loc->oloc->file, loc->oloc->addr))) {
/* Clear any errors from H5FO_opened() */
H5E_clear_stack(NULL);
/* Open the datatype object */
if(NULL == (dt = H5T__open_oid(loc)))
HGOTO_ERROR(H5E_DATATYPE, H5E_NOTFOUND, NULL, "not found")
/* Add the datatype to the list of opened objects in the file */
if(H5FO_insert(dt->sh_loc.file, dt->sh_loc.u.loc.oh_addr, dt->shared, FALSE) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINSERT, NULL, "can't insert datatype into list of open objects")
/* Increment object count for the object in the top file */
if(H5FO_top_incr(dt->sh_loc.file, dt->sh_loc.u.loc.oh_addr) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINC, NULL, "can't increment object count")
/* Mark any datatypes as being in memory now */
if(H5T_set_loc(dt, NULL, H5T_LOC_MEMORY) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "invalid datatype location")
dt->shared->fo_count = 1;
} /* end if */
else {
if(NULL == (dt = H5FL_MALLOC(H5T_t)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "can't allocate space for datatype")
dt->vol_obj = NULL;
#if defined(H5_USING_MEMCHECKER) || !defined(NDEBUG)
/* Clear object location */
if(H5O_loc_reset(&(dt->oloc)) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTOPENOBJ, NULL, "unable to reset location")
/* Clear path name */
if(H5G_name_reset(&(dt->path)) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTOPENOBJ, NULL, "unable to reset path")
#endif /* H5_USING_MEMCHECKER */
/* Shallow copy (take ownership) of the object location object */
if(H5O_loc_copy(&dt->oloc, loc->oloc, H5_COPY_SHALLOW) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, NULL, "can't copy object location")
/* Shallow copy (take ownership) of the group hier. path */
if(H5G_name_copy(&(dt->path), loc->path, H5_COPY_SHALLOW) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, NULL, "can't copy path")
/* Set the shared component info */
H5T_update_shared(dt);
/* Point to shared datatype info */
dt->shared = shared_fo;
/* Mark any datatypes as being in memory now */
if(H5T_set_loc(dt, NULL, H5T_LOC_MEMORY) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "invalid datatype location")
/* Increment ref. count on shared info */
shared_fo->fo_count++;
/* Check if the object has been opened through the top file yet */
if(H5FO_top_count(dt->sh_loc.file, dt->sh_loc.u.loc.oh_addr) == 0) {
/* Open the object through this top file */
if(H5O_open(&(dt->oloc)) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTOPENOBJ, NULL, "unable to open object header")
} /* end if */
/* Increment object count for the object in the top file */
if(H5FO_top_incr(dt->sh_loc.file, dt->sh_loc.u.loc.oh_addr) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINC, NULL, "can't increment object count")
} /* end else */
ret_value = dt;
done:
if(ret_value == NULL) {
if(dt) {
if(shared_fo == NULL) /* Need to free shared fo */
dt->shared = H5FL_FREE(H5T_shared_t, dt->shared);
H5O_loc_free(&(dt->oloc));
H5G_name_free(&(dt->path));
dt = H5FL_FREE(H5T_t, dt);
} /* end if */
if(shared_fo)
shared_fo->fo_count--;
} /* end if */
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T_open() */
/*-------------------------------------------------------------------------
* Function: H5T__open_oid
*
* Purpose: Open a named datatype.
*
* Return: Success: Ptr to a new datatype.
*
* Failure: NULL
*
* Programmer: Quincey Koziol
* Wednesday, March 17, 1999
*
*-------------------------------------------------------------------------
*/
static H5T_t *
H5T__open_oid(const H5G_loc_t *loc)
{
H5T_t *dt = NULL; /* Datatype from the file */
H5T_t *ret_value = NULL; /* Return value */
FUNC_ENTER_STATIC_TAG(loc->oloc->addr)
HDassert(loc);
/* Open named datatype object in file */
if(H5O_open(loc->oloc) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTOPENOBJ, NULL, "unable to open named datatype")
/* Deserialize the datatype message into a datatype in memory */
if(NULL == (dt = (H5T_t *)H5O_msg_read(loc->oloc, H5O_DTYPE_ID, NULL)))
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "unable to load type message from object header")
/* Mark the type as named and open */
dt->shared->state = H5T_STATE_OPEN;
/* Shallow copy (take ownership) of the object location object */
if(H5O_loc_copy(&dt->oloc, loc->oloc, H5_COPY_SHALLOW) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, NULL, "can't copy object location")
/* Shallow copy (take ownership) of the group hier. path */
if(H5G_name_copy(&(dt->path), loc->path, H5_COPY_SHALLOW) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, NULL, "can't copy path")
/* Set the shared component info */
H5T_update_shared(dt);
/* Set return value */
ret_value = dt;
done:
if(ret_value == NULL)
if(dt == NULL)
H5O_close(loc->oloc, NULL);
FUNC_LEAVE_NOAPI_TAG(ret_value)
} /* end H5T__open_oid() */
/*-------------------------------------------------------------------------
* Function: H5T_update_shared
*
* Purpose: Update the shared location information from the object location
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Quincey Koziol
* Friday, April 13, 2007
*
*-------------------------------------------------------------------------
*/
herr_t
H5T_update_shared(H5T_t *dt)
{
FUNC_ENTER_NOAPI_NOINIT_NOERR
HDassert(dt);
/* Set the shared location fields from the named datatype info */
H5O_UPDATE_SHARED(&(dt->sh_loc), H5O_SHARE_TYPE_COMMITTED, dt->oloc.file, H5O_DTYPE_ID, 0, dt->oloc.addr)
FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5T_update_shared() */
/*-------------------------------------------------------------------------
* Function: H5T_construct_datatype
*
* Purpose: Create a Library datatype with a plugin specific datatype object
*
* Return: Success: A type structure
* Failure: NULL
*
*-------------------------------------------------------------------------
*/
H5T_t *
H5T_construct_datatype(H5VL_object_t *vol_obj)
{
ssize_t nalloc;
void *buf = NULL;
H5T_t *dt = NULL; /* datatype token from VOL plugin */
H5T_t *ret_value = NULL;
FUNC_ENTER_NOAPI(NULL)
/* get required buf size for encoding the datatype */
if(H5VL_datatype_get(vol_obj->data, vol_obj->driver->cls, H5VL_DATATYPE_GET_BINARY,
H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL, &nalloc, NULL, 0) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "unable to get datatype serialized size")
/* allocate buffer to store binary description of the datatype */
if(NULL == (buf = (void *)H5MM_calloc((size_t)nalloc)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "can't allocate space for datatype")
/* get binary description of the datatype */
if(H5VL_datatype_get(vol_obj->data, vol_obj->driver->cls, H5VL_DATATYPE_GET_BINARY,
H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL, &nalloc, buf, (size_t)nalloc) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "unable to get serialized datatype")
if(NULL == (dt = H5T_decode((size_t)nalloc, (const unsigned char *)buf)))
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "can't decode datatype")
dt->vol_obj = vol_obj;
ret_value = dt;
done:
if(buf)
buf = H5MM_xfree(buf);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T_construct_datatype() */
/*-------------------------------------------------------------------------
* Function: H5T_get_named_type
*
* Purpose: Returns the VOL object for the named datatype if it exists
*
* Return: Success: Pointer to the VOL object for the datatype
* Failure: NULL
*
*-------------------------------------------------------------------------
*/
H5VL_object_t *
H5T_get_named_type(const H5T_t *dt)
{
H5VL_object_t *ret_value = NULL; /* Return value */
FUNC_ENTER_NOAPI_NOINIT_NOERR
if(NULL != dt->vol_obj)
ret_value = dt->vol_obj;
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T_get_named_type() */
/*-------------------------------------------------------------------------
* Function: H5T_get_actual_type
*
* Purpose: Returns underlying native datatype created by native driver
* if datatype is committed, otherwise return the datatype
* object associate with the ID.
*
* Return: Success: Pointer to the VOL-managed data for this datatype
* Failure: NULL
*
*-------------------------------------------------------------------------
*/
H5T_t *
H5T_get_actual_type(H5T_t *dt)
{
H5T_t *ret_value = NULL; /* Return value */
FUNC_ENTER_NOAPI_NOINIT_NOERR
/* Check if the datatype is committed */
if(NULL == dt->vol_obj)
ret_value = dt;
else
ret_value = (H5T_t *)dt->vol_obj->data;
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T_get_actual_type() */
/*-------------------------------------------------------------------------
* Function: H5T_save_refresh_state
*
* Purpose: Save state for datatype reconstuction after a refresh.
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5T_save_refresh_state(hid_t tid, H5O_shared_t *cached_H5O_shared)
{
H5T_t *dt = NULL; /* High level datatype object that wraps the VOL object */
H5T_t *vol_dt = NULL; /* H5T_t pointer stored in the datatype's vol_obj field */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(FAIL)
HDassert(cached_H5O_shared);
if(NULL == (dt = (H5T_t *)H5I_object_verify(tid, H5I_DATATYPE)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "tid is not a datatype ID")
vol_dt = (H5T_t *)(dt->vol_obj->data);
if(NULL == vol_dt)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "tid is not not a named datatype ID")
/* Increase the count on the file object */
vol_dt->shared->fo_count += 1;
/* Increment object count for the object in the top file */
if(H5FO_top_incr(vol_dt->sh_loc.file, vol_dt->sh_loc.u.loc.oh_addr) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINC, FAIL, "can't increment object count")
/* Cache the H5O_shared_t data */
HDmemcpy(cached_H5O_shared, &(vol_dt->sh_loc), sizeof(H5O_shared_t));
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T_save_refresh_state() */
/*-------------------------------------------------------------------------
* Function: H5T_restore_refresh_state
*
* Purpose: Restore state for datatype reconstuction after a refresh.
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5T_restore_refresh_state(hid_t tid, H5O_shared_t *cached_H5O_shared)
{
H5T_t *dt = NULL; /* High level datatype object that wraps the VOL object */
H5T_t *vol_dt = NULL; /* H5T_t pointer stored in the datatype's vol_obj field */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(FAIL)
HDassert(cached_H5O_shared);
if(NULL == (dt = (H5T_t *)H5I_object_verify(tid, H5I_DATATYPE)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "tid not a datatype ID")
vol_dt = (H5T_t *)(dt->vol_obj->data);
if(NULL == vol_dt)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "tid is not not a named datatype ID")
/* Restore the H5O_shared_t data */
HDmemcpy(&(vol_dt->sh_loc), cached_H5O_shared, sizeof(H5O_shared_t));
/* Decrement the ref. count for this object in the top file */
if(H5FO_top_decr(vol_dt->sh_loc.file, vol_dt->sh_loc.u.loc.oh_addr) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTDEC, FAIL, "can't decrement object count")
/* Decrease the count on the file object */
vol_dt->shared->fo_count -= 1;
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T_restore_refresh_state() */
Reference in New Issue View Git Blame Copy Permalink