path: root/src/H5Plcpl.c

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * 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://www.hdfgroup.org/licenses.               *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/*-------------------------------------------------------------------------
 *
 * Created:     H5Plcpl.c
 *
 * Purpose:     Link creation property list class routines
 *
 *-------------------------------------------------------------------------
 */

/****************/
/* Module Setup */
/****************/

#include "H5Pmodule.h" /* This source code file is part of the H5P module */

/***********/
/* Headers */
/***********/
#include "H5private.h"  /* Generic Functions                        */
#include "H5Eprivate.h" /* Error handling                           */
#include "H5Iprivate.h" /* IDs                                      */
#include "H5Lprivate.h" /* Links                                    */
#include "H5Ppkg.h"     /* Property lists                           */

/****************/
/* Local Macros */
/****************/

/* ========  Link creation properties ======== */
/* Definitions for create intermediate groups flag */
#define H5L_CRT_INTERMEDIATE_GROUP_SIZE sizeof(unsigned)
#define H5L_CRT_INTERMEDIATE_GROUP_DEF  0
#define H5L_CRT_INTERMEDIATE_GROUP_ENC  H5P__encode_unsigned
#define H5L_CRT_INTERMEDIATE_GROUP_DEC  H5P__decode_unsigned

/******************/
/* Local Typedefs */
/******************/

/********************/
/* Package Typedefs */
/********************/

/********************/
/* Local Prototypes */
/********************/

/* Property class callbacks */
static herr_t H5P__lcrt_reg_prop(H5P_genclass_t *pclass);

/*********************/
/* Package Variables */
/*********************/

/* Link creation property list class library initialization object */
const H5P_libclass_t H5P_CLS_LCRT[1] = {{
    "link create",        /* Class name for debugging     */
    H5P_TYPE_LINK_CREATE, /* Class type                   */

    &H5P_CLS_STRING_CREATE_g,  /* Parent class                 */
    &H5P_CLS_LINK_CREATE_g,    /* Pointer to class             */
    &H5P_CLS_LINK_CREATE_ID_g, /* Pointer to class ID          */
    &H5P_LST_LINK_CREATE_ID_g, /* Pointer to default property list ID */
    H5P__lcrt_reg_prop,        /* Default property registration routine */

    NULL, /* Class creation callback      */
    NULL, /* Class creation callback info */
    NULL, /* Class copy callback          */
    NULL, /* Class copy callback info     */
    NULL, /* Class close callback         */
    NULL  /* Class close callback info    */
}};

/*****************************/
/* Library Private Variables */
/*****************************/

/*******************/
/* Local Variables */
/*******************/

/* Property value defaults */
static const unsigned H5L_def_intmd_group_g =
    H5L_CRT_INTERMEDIATE_GROUP_DEF; /* Default setting for creating intermediate groups */

/*-------------------------------------------------------------------------
 * Function:    H5P__lcrt_reg_prop
 *
 * Purpose:     Register the dataset creation property list class's properties
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              October 31, 2006
 *-------------------------------------------------------------------------
 */
static herr_t
H5P__lcrt_reg_prop(H5P_genclass_t *pclass)
{
    herr_t ret_value = SUCCEED; /* Return value */

    FUNC_ENTER_PACKAGE

    /* Register create intermediate groups property */
    if (H5P__register_real(pclass, H5L_CRT_INTERMEDIATE_GROUP_NAME, H5L_CRT_INTERMEDIATE_GROUP_SIZE,
                           &H5L_def_intmd_group_g, NULL, NULL, NULL, H5L_CRT_INTERMEDIATE_GROUP_ENC,
                           H5L_CRT_INTERMEDIATE_GROUP_DEC, NULL, NULL, NULL, NULL) < 0)
        HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5P__lcrt_reg_prop() */

/*-------------------------------------------------------------------------
 * Function:    H5Pset_create_intermediate_group
 *
 * Purpose:     set crt_intmd_group so that H5Lcreate_*, H5Olink, etc.
 *              will create missing groups along the given path "name"
 *
 * Note:        XXX: This property should really be an access property. -QAK
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Peter Cao
 *              May 08, 2005
 *-------------------------------------------------------------------------
 */
herr_t
H5Pset_create_intermediate_group(hid_t plist_id, unsigned crt_intmd_group)
{
    H5P_genplist_t *plist;               /* Property list pointer */
    herr_t          ret_value = SUCCEED; /* Return value */

    FUNC_ENTER_API(FAIL)
    H5TRACE2("e", "iIu", plist_id, crt_intmd_group);

    /* Get the plist structure */
    if (NULL == (plist = H5P_object_verify(plist_id, H5P_LINK_CREATE)))
        HGOTO_ERROR(H5E_ID, H5E_BADID, FAIL, "can't find object for ID")

    /* Set value */
    crt_intmd_group = (unsigned)(crt_intmd_group > 0 ? 1 : 0);
    if (H5P_set(plist, H5L_CRT_INTERMEDIATE_GROUP_NAME, &crt_intmd_group) < 0)
        HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set intermediate group creation flag")

done:
    FUNC_LEAVE_API(ret_value)
} /* end H5Pset_create_intermediate_group() */

/*-------------------------------------------------------------------------
 * Function:    H5Pget_create_intermediate_group
 *
 * Purpose:     Returns the crt_intmd_group, which is set to create missing
 *              groups during H5Olink, etc.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Peter Cao
 *              May 08, 2005
 *-------------------------------------------------------------------------
 */
herr_t
H5Pget_create_intermediate_group(hid_t plist_id, unsigned *crt_intmd_group /*out*/)
{
    H5P_genplist_t *plist;               /* Property list pointer */
    herr_t          ret_value = SUCCEED; /* return value */

    FUNC_ENTER_API(FAIL)
    H5TRACE2("e", "ix", plist_id, crt_intmd_group);

    /* Get the plist structure */
    if (NULL == (plist = H5P_object_verify(plist_id, H5P_LINK_CREATE)))
        HGOTO_ERROR(H5E_ID, H5E_BADID, FAIL, "can't find object for ID")

    /* Get values */
    if (crt_intmd_group)
        if (H5P_get(plist, H5L_CRT_INTERMEDIATE_GROUP_NAME, crt_intmd_group) < 0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get intermediate group creation flag")

done:
    FUNC_LEAVE_API(ret_value)
} /* end H5Pget_create_intermediate_group() */