mirror of
https://github.com/HDFGroup/hdf5.git
synced 2025-03-25 17:00:45 +08:00
ed7d456e51
Tested platform: Kagiso only since it is only a comment block change. If it works in one machine, it should work in all, I hope. Still need to check the parallel build on copper.
183 lines
5.5 KiB
C
183 lines
5.5 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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* Copyright by the Board of Trustees of the University of Illinois. *
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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 files COPYING and Copyright.html. COPYING can be found at the root *
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* of the source code distribution tree; Copyright.html can be found at the *
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* root level of an installed copy of the electronic HDF5 document set and *
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* is linked from the top-level documents page. It can also be found at *
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* http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
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* access to either file, you may request a copy from help@hdfgroup.org. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/****************/
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/* Module Setup */
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/****************/
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#define H5O_PACKAGE /*suppress error about including H5Opkg */
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/***********/
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/* Headers */
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/***********/
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#include "H5private.h" /* Generic Functions */
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#include "H5Eprivate.h" /* Error handling */
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#include "H5Iprivate.h" /* IDs */
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#include "H5Opkg.h" /* Object headers */
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/****************/
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/* Local Macros */
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/****************/
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/******************/
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/* Local Typedefs */
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/******************/
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/********************/
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/* Local Prototypes */
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/********************/
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static htri_t H5O_dtype_isa(H5O_t *loc);
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static hid_t H5O_dtype_open(H5G_loc_t *obj_loc, hid_t dxpl_id);
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static H5O_loc_t *H5O_dtype_get_oloc(hid_t obj_id);
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/*********************/
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/* Package Variables */
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/*********************/
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/*****************************/
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/* Library Private Variables */
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/*****************************/
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/*******************/
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/* Local Variables */
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/*******************/
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/* This message derives from H5O object class */
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const H5O_obj_class_t H5O_OBJ_DATATYPE[1] = {{
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H5O_TYPE_NAMED_DATATYPE, /* object type */
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"named datatype", /* object name, for debugging */
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NULL, /* get 'copy file' user data */
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NULL, /* free 'copy file' user data */
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H5O_dtype_isa, /* "isa" */
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H5O_dtype_open, /* open an object of this class */
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H5O_dtype_get_oloc /* get an object header location for an object */
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}};
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/*-------------------------------------------------------------------------
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* Function: H5O_dtype_isa
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*
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* Purpose: Determines if an object has the requisite messages for being
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* a datatype.
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*
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* Return: Success: TRUE if the required data type messages are
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* present; FALSE otherwise.
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*
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* Failure: FAIL if the existence of certain messages
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* cannot be determined.
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*
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* Programmer: Robb Matzke
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* Monday, November 2, 1998
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*
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*-------------------------------------------------------------------------
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*/
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htri_t
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H5O_dtype_isa(struct H5O_t *oh)
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{
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htri_t ret_value; /* Return value */
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FUNC_ENTER_NOAPI(H5O_dtype_isa, FAIL)
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HDassert(oh);
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if((ret_value = H5O_msg_exists_oh(oh, H5O_DTYPE_ID)) < 0)
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HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to read object header")
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done:
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FUNC_LEAVE_NOAPI(ret_value)
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} /* end H5O_dtype_isa() */
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/*-------------------------------------------------------------------------
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* Function: H5O_dtype_open
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*
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* Purpose: Open a datatype at a particular location
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*
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* Return: Success: Open object identifier
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* Failure: Negative
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*
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* Programmer: Quincey Koziol
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* Monday, November 6, 2006
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*
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*-------------------------------------------------------------------------
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*/
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static hid_t
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H5O_dtype_open(H5G_loc_t *obj_loc, hid_t dxpl_id)
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{
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H5T_t *type = NULL; /* Datatype opened */
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hid_t ret_value; /* Return value */
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FUNC_ENTER_NOAPI_NOINIT(H5O_dtype_open)
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HDassert(obj_loc);
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/* Open the datatype */
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if((type = H5T_open(obj_loc, dxpl_id)) == NULL)
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HGOTO_ERROR(H5E_SYM, H5E_CANTOPENOBJ, FAIL, "unable to open datatype")
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/* Register an ID for the datatype */
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if((ret_value = H5I_register(H5I_DATATYPE, type)) < 0)
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HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to register datatype")
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done:
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if(ret_value < 0)
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if(type != NULL)
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H5T_close(type);
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FUNC_LEAVE_NOAPI(ret_value)
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} /* end H5O_dtype_open() */
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/*-------------------------------------------------------------------------
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* Function: H5O_dtype_get_oloc
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*
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* Purpose: Retrieve the object header location for an open object
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*
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* Return: Success: Pointer to object header location
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* Failure: NULL
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*
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* Programmer: Quincey Koziol
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* Monday, November 6, 2006
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*
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*-------------------------------------------------------------------------
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*/
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static H5O_loc_t *
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H5O_dtype_get_oloc(hid_t obj_id)
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{
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H5T_t *type; /* Datatype opened */
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H5O_loc_t *ret_value; /* Return value */
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FUNC_ENTER_NOAPI_NOINIT(H5O_dtype_get_oloc)
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/* Get the datatype */
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if((type = H5I_object(obj_id)) == NULL)
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HGOTO_ERROR(H5E_OHDR, H5E_BADATOM, NULL, "couldn't get object from ID")
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/* Get the datatype's object header location */
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if((ret_value = H5T_oloc(type)) == NULL)
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HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, NULL, "unable to get object location from object")
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done:
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FUNC_LEAVE_NOAPI(ret_value)
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} /* end H5O_dtype_get_oloc() */
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