mirror of
https://github.com/HDFGroup/hdf5.git
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b951fb9fe1
Undo of accidental check-in of H5T code in last check-in.
Tested on:
jam w/ parallel enabled (revert to pre-existing code)
148 lines
5.0 KiB
C
148 lines
5.0 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 Info: This module contains the functionality for setting & querying
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* the datatype padding for the H5T interface.
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*/
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#define H5T_PACKAGE /*suppress error about including H5Tpkg */
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/* Interface initialization */
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#define H5_INTERFACE_INIT_FUNC H5T_init_pad_interface
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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 "H5Tpkg.h" /* Datatypes */
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/*--------------------------------------------------------------------------
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NAME
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H5T_init_pad_interface -- Initialize interface-specific information
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USAGE
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herr_t H5T_init_pad_interface()
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RETURNS
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Non-negative on success/Negative on failure
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DESCRIPTION
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Initializes any interface-specific data or routines. (Just calls
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H5T_init_iterface currently).
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--------------------------------------------------------------------------*/
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static herr_t
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H5T_init_pad_interface(void)
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{
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FUNC_ENTER_NOAPI_NOINIT_NOERR
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FUNC_LEAVE_NOAPI(H5T_init())
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} /* H5T_init_pad_interface() */
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/*-------------------------------------------------------------------------
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* Function: H5Tget_pad
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*
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* Purpose: Gets the least significant pad type and the most significant
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* pad type and returns their values through the LSB and MSB
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* arguments, either of which may be the null pointer.
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*
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* Return: Non-negative on success/Negative on failure
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*
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* Programmer: Robb Matzke
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* Friday, January 9, 1998
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*
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* Modifications:
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* Robb Matzke, 22 Dec 1998
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* Also works with derived data types.
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*
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*-------------------------------------------------------------------------
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*/
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herr_t
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H5Tget_pad(hid_t type_id, H5T_pad_t *lsb/*out*/, H5T_pad_t *msb/*out*/)
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{
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H5T_t *dt = NULL;
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herr_t ret_value=SUCCEED; /* Return value */
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FUNC_ENTER_API(FAIL)
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H5TRACE3("e", "ixx", type_id, lsb, msb);
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/* Check args */
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if (NULL == (dt = H5I_object_verify(type_id,H5I_DATATYPE)))
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HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a data type")
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while (dt->shared->parent)
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dt = dt->shared->parent; /*defer to parent*/
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if (!H5T_IS_ATOMIC(dt->shared))
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HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "operation not defined for specified data type")
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/* Get values */
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if (lsb)
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*lsb = dt->shared->u.atomic.lsb_pad;
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if (msb)
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*msb = dt->shared->u.atomic.msb_pad;
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done:
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FUNC_LEAVE_API(ret_value)
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}
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/*-------------------------------------------------------------------------
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* Function: H5Tset_pad
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*
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* Purpose: Sets the LSB and MSB pad types.
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*
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* Return: Non-negative on success/Negative on failure
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*
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* Programmer: Robb Matzke
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* Friday, January 9, 1998
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*
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* Modifications:
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* Robb Matzke, 22 Dec 1998
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* Also works with derived data types.
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*
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*-------------------------------------------------------------------------
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*/
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herr_t
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H5Tset_pad(hid_t type_id, H5T_pad_t lsb, H5T_pad_t msb)
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{
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H5T_t *dt = NULL;
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herr_t ret_value=SUCCEED; /* Return value */
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FUNC_ENTER_API(FAIL)
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H5TRACE3("e", "iTpTp", type_id, lsb, msb);
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/* Check args */
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if (NULL == (dt = H5I_object_verify(type_id,H5I_DATATYPE)))
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HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a data type")
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if (H5T_STATE_TRANSIENT!=dt->shared->state)
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HGOTO_ERROR(H5E_ARGS, H5E_CANTINIT, FAIL, "data type is read-only")
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if (lsb < H5T_PAD_ZERO || lsb >= H5T_NPAD || msb < H5T_PAD_ZERO || msb >= H5T_NPAD)
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HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid pad type")
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if (H5T_ENUM==dt->shared->type && dt->shared->u.enumer.nmembs>0)
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HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "operation not allowed after members are defined")
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while (dt->shared->parent)
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dt = dt->shared->parent; /*defer to parent*/
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if (!H5T_IS_ATOMIC(dt->shared))
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HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "operation not defined for specified data type")
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/* Commit */
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dt->shared->u.atomic.lsb_pad = lsb;
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dt->shared->u.atomic.msb_pad = msb;
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done:
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FUNC_LEAVE_API(ret_value)
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}
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