/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * 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.     *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/*-------------------------------------------------------------------------
 *
 * Created:		H5Pfapl.c
 *			February 26 1998
 *			Robb Matzke <matzke@llnl.gov>
 *
 * Purpose:		File access property list class routines
 *
 *-------------------------------------------------------------------------
 */

/****************/
/* Module Setup */
/****************/
#define H5P_PACKAGE		/*suppress error about including H5Ppkg	  */


/***********/
/* Headers */
/***********/
#include "H5private.h"		/* Generic Functions			*/
#include "H5Dprivate.h"		/* Datasets				*/
#include "H5Eprivate.h"		/* Error handling		  	*/
#include "H5Fprivate.h"		/* Files		  	*/
#include "H5FDprivate.h"	/* File drivers				*/
#include "H5Iprivate.h"		/* IDs			  		*/
#include "H5Ppkg.h"		/* Property lists		  	*/

/* Default file driver - see H5Pget_driver() */
#include "H5FDsec2.h"		/* Posix unbuffered I/O	file driver	*/


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

/* ========= File Access properties ============ */
/* Definitions for the initial metadata cache resize configuration */
#define H5F_ACS_META_CACHE_INIT_CONFIG_SIZE	sizeof(H5AC_cache_config_t)
#define H5F_ACS_META_CACHE_INIT_CONFIG_DEF	H5AC__DEFAULT_CACHE_CONFIG
/* Definitions for size of raw data chunk cache(elements) */
#define H5F_ACS_DATA_CACHE_ELMT_SIZE_SIZE       sizeof(size_t)
#define H5F_ACS_DATA_CACHE_ELMT_SIZE_DEF        521
/* Definition for size of raw data chunk cache(bytes) */
#define H5F_ACS_DATA_CACHE_BYTE_SIZE_SIZE       sizeof(size_t)
#define H5F_ACS_DATA_CACHE_BYTE_SIZE_DEF        (1024*1024)
/* Definition for preemption read chunks first */
#define H5F_ACS_PREEMPT_READ_CHUNKS_SIZE        sizeof(double)
#define H5F_ACS_PREEMPT_READ_CHUNKS_DEF         0.75
/* Definition for threshold for alignment */
#define H5F_ACS_ALIGN_THRHD_SIZE                sizeof(hsize_t)
#define H5F_ACS_ALIGN_THRHD_DEF                 1
/* Definition for alignment */
#define H5F_ACS_ALIGN_SIZE                      sizeof(hsize_t)
#define H5F_ACS_ALIGN_DEF                       1
/* Definition for minimum metadata allocation block size (when
   aggregating metadata allocations. */
#define H5F_ACS_META_BLOCK_SIZE_SIZE            sizeof(hsize_t)
#define H5F_ACS_META_BLOCK_SIZE_DEF             2048
/* Definition for maximum sieve buffer size (when data sieving
   is allowed by file driver */
#define H5F_ACS_SIEVE_BUF_SIZE_SIZE             sizeof(size_t)
#define H5F_ACS_SIEVE_BUF_SIZE_DEF              (64*1024)
/* Definition for minimum "small data" allocation block size (when
   aggregating "small" raw data allocations. */
#define H5F_ACS_SDATA_BLOCK_SIZE_SIZE           sizeof(hsize_t)
#define H5F_ACS_SDATA_BLOCK_SIZE_DEF            2048
/* Definition for garbage-collect references */
#define H5F_ACS_GARBG_COLCT_REF_SIZE            sizeof(unsigned)
#define H5F_ACS_GARBG_COLCT_REF_DEF             0
/* Definition for file driver ID */
#define H5F_ACS_FILE_DRV_ID_SIZE                sizeof(hid_t)
#define H5F_ACS_FILE_DRV_ID_DEF                 H5FD_SEC2
/* Definition for file driver info */
#define H5F_ACS_FILE_DRV_INFO_SIZE              sizeof(void*)
#define H5F_ACS_FILE_DRV_INFO_DEF               NULL
/* Definition for file close degree */
#define H5F_CLOSE_DEGREE_SIZE		        sizeof(H5F_close_degree_t)
#define H5F_CLOSE_DEGREE_DEF		        H5F_CLOSE_DEFAULT
/* Definition for offset position in file for family file driver */
#define H5F_ACS_FAMILY_OFFSET_SIZE              sizeof(hsize_t)
#define H5F_ACS_FAMILY_OFFSET_DEF               0
/* Definition for new member size of family driver. It's private
 * property only used by h5repart */
#define H5F_ACS_FAMILY_NEWSIZE_SIZE            sizeof(hsize_t)
#define H5F_ACS_FAMILY_NEWSIZE_DEF             0
/* Definition for whether to convert family to sec2 driver. It's private
 * property only used by h5repart */
#define H5F_ACS_FAMILY_TO_SEC2_SIZE            sizeof(hbool_t)
#define H5F_ACS_FAMILY_TO_SEC2_DEF             FALSE
/* Definition for data type in multi file driver */
#define H5F_ACS_MULTI_TYPE_SIZE                 sizeof(H5FD_mem_t)
#define H5F_ACS_MULTI_TYPE_DEF                  H5FD_MEM_DEFAULT
/* Definition for 'use latest format version' flag */
#define H5F_ACS_LATEST_FORMAT_SIZE              sizeof(hbool_t)
#define H5F_ACS_LATEST_FORMAT_DEF               FALSE


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


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


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

/* General routines */
static herr_t H5P_set_family_offset(H5P_genplist_t *plist, hsize_t offset);
static herr_t H5P_get_family_offset(H5P_genplist_t *plist, hsize_t *offset);
static herr_t H5P_set_multi_type(H5P_genplist_t *plist, H5FD_mem_t type);
static herr_t H5P_get_multi_type(H5P_genplist_t *plist, H5FD_mem_t *type);

/* Property class callbacks */
static herr_t H5P_facc_reg_prop(H5P_genclass_t *pclass);
static herr_t H5P_facc_create(hid_t fapl_id, void *copy_data);
static herr_t H5P_facc_copy(hid_t new_plist_t, hid_t old_plist_t, void *copy_data);


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

/* File access property list class library initialization object */
const H5P_libclass_t H5P_CLS_FACC[1] = {{
    "file access",		/* Class name for debugging     */
    &H5P_CLS_ROOT_g,		/* Parent class ID              */
    &H5P_CLS_FILE_ACCESS_g,	/* Pointer to class ID          */
    &H5P_LST_FILE_ACCESS_g,	/* Pointer to default property list ID */
    H5P_facc_reg_prop,		/* Default property registration routine */
    H5P_facc_create,		/* Class creation callback      */
    NULL,		        /* Class creation callback info */
    H5P_facc_copy,		/* Class copy callback          */
    NULL,		        /* Class copy callback info     */
    H5P_facc_close,		/* Class close callback         */
    NULL 		        /* Class close callback info    */
}};


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


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



/*-------------------------------------------------------------------------
 * Function:    H5P_facc_reg_prop
 *
 * Purpose:     Register the file access property list class's properties
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              October 31, 2006
 *-------------------------------------------------------------------------
 */
static herr_t
H5P_facc_reg_prop(H5P_genclass_t *pclass)
{
    H5AC_cache_config_t mdc_initCacheCfg = H5F_ACS_META_CACHE_INIT_CONFIG_DEF;  /* Default metadata cache settings */
    size_t rdcc_nelmts = H5F_ACS_DATA_CACHE_ELMT_SIZE_DEF;      /* Default raw data chunk cache # of elements */
    size_t rdcc_nbytes = H5F_ACS_DATA_CACHE_BYTE_SIZE_DEF;      /* Default raw data chunk cache # of bytes */
    double rdcc_w0 = H5F_ACS_PREEMPT_READ_CHUNKS_DEF;           /* Default raw data chunk cache dirty ratio */
    hsize_t threshold = H5F_ACS_ALIGN_THRHD_DEF;                /* Default allocation alignment threshold */
    hsize_t alignment = H5F_ACS_ALIGN_DEF;                      /* Default allocation alignment value */
    hsize_t meta_block_size = H5F_ACS_META_BLOCK_SIZE_DEF;      /* Default metadata allocation block size */
    size_t sieve_buf_size = H5F_ACS_SIEVE_BUF_SIZE_DEF;         /* Default raw data I/O sieve buffer size */
    hsize_t sdata_block_size = H5F_ACS_SDATA_BLOCK_SIZE_DEF;    /* Default small data allocation block size */
    unsigned gc_ref = H5F_ACS_GARBG_COLCT_REF_DEF;              /* Default garbage collection for references setting */
    hid_t driver_id = H5F_ACS_FILE_DRV_ID_DEF;                  /* Default VFL driver ID */
    void *driver_info = H5F_ACS_FILE_DRV_INFO_DEF;              /* Default VFL driver info */
    H5F_close_degree_t close_degree = H5F_CLOSE_DEGREE_DEF;     /* Default file close degree */
    hsize_t family_offset = H5F_ACS_FAMILY_OFFSET_DEF;          /* Default offset for family VFD */
    hsize_t family_newsize = H5F_ACS_FAMILY_NEWSIZE_DEF;        /* Default size of new files for family VFD */
    hbool_t family_to_sec2 = H5F_ACS_FAMILY_TO_SEC2_DEF;        /* Default ?? for family VFD */
    H5FD_mem_t mem_type = H5F_ACS_MULTI_TYPE_DEF;               /* Default file space type for multi VFD */
    hbool_t latest_format = H5F_ACS_LATEST_FORMAT_DEF;          /* Default setting for "use the latest version of the format" flag */
    herr_t ret_value = SUCCEED;         /* Return value */

    FUNC_ENTER_NOAPI_NOINIT(H5P_facc_reg_prop)

    /* Register the initial metadata cache resize configuration */
    if(H5P_register(pclass, H5F_ACS_META_CACHE_INIT_CONFIG_NAME, H5F_ACS_META_CACHE_INIT_CONFIG_SIZE, &mdc_initCacheCfg, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")

    /* Register the size of raw data chunk cache (elements) */
    if(H5P_register(pclass, H5F_ACS_DATA_CACHE_ELMT_SIZE_NAME, H5F_ACS_DATA_CACHE_ELMT_SIZE_SIZE, &rdcc_nelmts, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")

    /* Register the size of raw data chunk cache(bytes) */
    if(H5P_register(pclass, H5F_ACS_DATA_CACHE_BYTE_SIZE_NAME, H5F_ACS_DATA_CACHE_BYTE_SIZE_SIZE, &rdcc_nbytes, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")

    /* Register the preemption for reading chunks */
    if(H5P_register(pclass, H5F_ACS_PREEMPT_READ_CHUNKS_NAME, H5F_ACS_PREEMPT_READ_CHUNKS_SIZE, &rdcc_w0, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")

    /* Register the threshold for alignment */
    if(H5P_register(pclass, H5F_ACS_ALIGN_THRHD_NAME, H5F_ACS_ALIGN_THRHD_SIZE, &threshold, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")

    /* Register the alignment */
    if(H5P_register(pclass, H5F_ACS_ALIGN_NAME, H5F_ACS_ALIGN_SIZE, &alignment, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")

    /* Register the minimum metadata allocation block size */
    if(H5P_register(pclass, H5F_ACS_META_BLOCK_SIZE_NAME, H5F_ACS_META_BLOCK_SIZE_SIZE, &meta_block_size, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")

    /* Register the maximum sieve buffer size */
    if(H5P_register(pclass, H5F_ACS_SIEVE_BUF_SIZE_NAME, H5F_ACS_SIEVE_BUF_SIZE_SIZE, &sieve_buf_size, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")

    /* Register the minimum "small data" allocation block size */
    if(H5P_register(pclass, H5F_ACS_SDATA_BLOCK_SIZE_NAME, H5F_ACS_SDATA_BLOCK_SIZE_SIZE, &sdata_block_size, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")

    /* Register the garbage collection reference */
    if(H5P_register(pclass, H5F_ACS_GARBG_COLCT_REF_NAME, H5F_ACS_GARBG_COLCT_REF_SIZE, &gc_ref, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")

    /* Register the file driver ID */
    if(H5P_register(pclass, H5F_ACS_FILE_DRV_ID_NAME, H5F_ACS_FILE_DRV_ID_SIZE, &driver_id, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")

    /* Register the file driver info */
    if(H5P_register(pclass, H5F_ACS_FILE_DRV_INFO_NAME, H5F_ACS_FILE_DRV_INFO_SIZE, &driver_info, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")

    /* Register the file close degree */
    if(H5P_register(pclass, H5F_ACS_CLOSE_DEGREE_NAME, H5F_CLOSE_DEGREE_SIZE, &close_degree, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")

    /* Register the offset of family driver info */
    if(H5P_register(pclass, H5F_ACS_FAMILY_OFFSET_NAME, H5F_ACS_FAMILY_OFFSET_SIZE, &family_offset, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")

    /* Register the private property of new family file size. It's used by h5repart only. */
    if(H5P_register(pclass, H5F_ACS_FAMILY_NEWSIZE_NAME, H5F_ACS_FAMILY_NEWSIZE_SIZE, &family_newsize, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")

    /* Register the private property of whether convert family to sec2 driver. It's used by h5repart only. */
    if(H5P_register(pclass, H5F_ACS_FAMILY_TO_SEC2_NAME, H5F_ACS_FAMILY_TO_SEC2_SIZE, &family_to_sec2, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")

    /* Register the data type of multi driver info */
    if(H5P_register(pclass, H5F_ACS_MULTI_TYPE_NAME, H5F_ACS_MULTI_TYPE_SIZE, &mem_type, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")

    /* Register the 'use the latest version of the format' flag */
    if(H5P_register(pclass, H5F_ACS_LATEST_FORMAT_NAME, H5F_ACS_LATEST_FORMAT_SIZE, &latest_format, NULL, NULL, NULL, 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_facc_reg_prop() */


/*----------------------------------------------------------------------------
 * Function:	H5P_facc_create
 *
 * Purpose:	Callback routine which is called whenever a file access
 *		property list is closed.  This routine performs any generic
 * 		initialization needed on the properties the library put into
 * 		the list.
 *
 * Return:	Success:		Non-negative
 * 		Failure:		Negative
 *
 * Programmer:	Raymond Lu
 *		Tuesday, Oct 23, 2001
 *
 *----------------------------------------------------------------------------
 */
/* ARGSUSED */
static herr_t
H5P_facc_create(hid_t fapl_id, void UNUSED *copy_data)
{
    hid_t          driver_id;
    H5P_genplist_t *plist;              /* Property list */
    herr_t         ret_value = SUCCEED;

    FUNC_ENTER_NOAPI_NOINIT(H5P_facc_create)

    /* Check argument */
    if(NULL == (plist = H5I_object(fapl_id)))
        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list")

    /* Retrieve driver ID property */
    if(H5P_get(plist, H5F_ACS_FILE_DRV_ID_NAME, &driver_id) < 0)
        HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get driver ID")

    if(driver_id > 0) {
        void *driver_info;

        /* Retrieve driver info property */
        if(H5P_get(plist, H5F_ACS_FILE_DRV_INFO_NAME, &driver_info) < 0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get driver info")

        /* Set the driver for the property list */
        if(H5FD_fapl_open(plist, driver_id, driver_info) < 0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set driver")
    } /* end if */

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5P_facc_create() */


/*--------------------------------------------------------------------------
 * Function:	H5P_facc_copy
 *
 * Purpose:	Callback routine which is called whenever a file access
 * 		property list is copied.  This routine performs any generic
 * 	 	copy needed on the properties.
 *
 * Return:	Success:	Non-negative
 * 		Failure:	Negative
 *
 * Programmer:	Raymond Lu
 *		Tuesday, Oct 23, 2001
 *
 *--------------------------------------------------------------------------
 */
/* ARGSUSED */
static herr_t
H5P_facc_copy(hid_t dst_fapl_id, hid_t src_fapl_id, void UNUSED *copy_data)
{
    hid_t          driver_id;
    H5P_genplist_t *src_plist;              /* Source property list */
    herr_t         ret_value = SUCCEED;

    FUNC_ENTER_NOAPI_NOINIT(H5P_facc_copy)

    /* Get driver ID from source property list */
    if(NULL == (src_plist = H5I_object(src_fapl_id)))
        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "can't get property list")
    if(H5P_get(src_plist, H5F_ACS_FILE_DRV_ID_NAME, &driver_id) < 0)
        HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get driver ID")

    if(driver_id > 0) {
        H5P_genplist_t *dst_plist;              /* Destination property list */
        void *driver_info;

        /* Get driver info from source property list */
        if(H5P_get(src_plist, H5F_ACS_FILE_DRV_INFO_NAME, &driver_info) < 0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get driver info")

        /* Set the driver for the destination property list */
        if(NULL == (dst_plist = H5I_object(dst_fapl_id)))
            HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "can't get property list")
        if(H5FD_fapl_open(dst_plist, driver_id, driver_info) < 0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set driver")
    } /* end if */

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5P_facc_copy() */


/*--------------------------------------------------------------------------
 * Function:	H5P_facc_close
 *
 * Purpose:	Callback routine which is called whenever a file access
 *		property list is closed.  This routine performs any generic
 *		cleanup needed on the properties.
 *
 * Return:	Success:	Non-negative
 * 		Failure:	Negative
 *
 * Programmer:	Raymond Lu
 *		Tuesday, Oct 23, 2001
 *
 *---------------------------------------------------------------------------
 */
/* ARGSUSED */
herr_t
H5P_facc_close(hid_t fapl_id, void UNUSED *close_data)
{
    hid_t      driver_id;
    H5P_genplist_t *plist;              /* Property list */
    herr_t     ret_value = SUCCEED;

    FUNC_ENTER_NOAPI(H5P_facc_close, FAIL)

    /* Check argument */
    if(NULL == (plist = H5I_object(fapl_id)))
        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list")

    /* Get driver ID property */
    if(H5P_get(plist, H5F_ACS_FILE_DRV_ID_NAME, &driver_id) < 0)
        HGOTO_DONE(FAIL) /* Can't return errors when library is shutting down */

    if(driver_id > 0) {
        void *driver_info;

        /* Get driver info property */
        if(H5P_get(plist, H5F_ACS_FILE_DRV_INFO_NAME, &driver_info) < 0)
            HGOTO_DONE(FAIL) /* Can't return errors when library is shutting down */

        /* Close the driver for the property list */
        if(H5FD_fapl_close(driver_id, driver_info) < 0)
            HGOTO_DONE(FAIL) /* Can't return errors when library is shutting down */
    } /* end if */

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5P_facc_close() */


/*-------------------------------------------------------------------------
 * Function:	H5Pset_alignment
 *
 * Purpose:	Sets the alignment properties of a file access property list
 *		so that any file object >= THRESHOLD bytes will be aligned on
 *		an address which is a multiple of ALIGNMENT.  The addresses
 *		are relative to the end of the user block; the alignment is
 *		calculated by subtracting the user block size from the
 *		absolute file address and then adjusting the address to be a
 *		multiple of ALIGNMENT.
 *
 *		Default values for THRESHOLD and ALIGNMENT are one, implying
 *		no alignment.  Generally the default values will result in
 *		the best performance for single-process access to the file.
 *		For MPI-IO and other parallel systems, choose an alignment
 *		which is a multiple of the disk block size.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Robb Matzke
 *              Tuesday, June  9, 1998
 *
 * Modifications:
 *
 *		Raymond Lu
 *		Tuesday, Oct 23, 2001
 *		Changed file access property list mechanism to the new
 *		generic property list.
 *-------------------------------------------------------------------------
 */
herr_t
H5Pset_alignment(hid_t fapl_id, hsize_t threshold, hsize_t alignment)
{
    H5P_genplist_t *plist;      /* Property list pointer */
    herr_t ret_value=SUCCEED;   /* return value */

    FUNC_ENTER_API(H5Pset_alignment, FAIL);
    H5TRACE3("e", "ihh", fapl_id, threshold, alignment);

    /* Check args */
    if (alignment<1)
        HGOTO_ERROR (H5E_ARGS, H5E_BADVALUE, FAIL, "alignment must be positive");

    /* Get the plist structure */
    if(NULL == (plist = H5P_object_verify(fapl_id,H5P_FILE_ACCESS)))
        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");

    /* Set values */
    if(H5P_set(plist, H5F_ACS_ALIGN_THRHD_NAME, &threshold) < 0)
        HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set threshold");
    if(H5P_set(plist, H5F_ACS_ALIGN_NAME, &alignment) < 0)
        HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set alignment");

done:
    FUNC_LEAVE_API(ret_value);
}


/*-------------------------------------------------------------------------
 * Function:	H5Pget_alignment
 *
 * Purpose:	Returns the current settings for alignment properties from a
 *		file access property list.  The THRESHOLD and/or ALIGNMENT
 *		pointers may be null pointers.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Robb Matzke
 *              Tuesday, June  9, 1998
 *
 * Modifications:
 *
 *		Raymond Lu
 *		Tuesday, Oct 23, 2001
 *		Changed the file access list design to the new generic
 *		property list.
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pget_alignment(hid_t fapl_id, hsize_t *threshold/*out*/,
		  hsize_t *alignment/*out*/)
{
    H5P_genplist_t *plist;      /* Property list pointer */
    herr_t      ret_value=SUCCEED;       /* Return value */

    FUNC_ENTER_API(H5Pget_alignment, FAIL);
    H5TRACE3("e", "ixx", fapl_id, threshold, alignment);

    /* Get the plist structure */
    if(NULL == (plist = H5P_object_verify(fapl_id,H5P_FILE_ACCESS)))
        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");

    /* Get values */
    if (threshold)
        if(H5P_get(plist, H5F_ACS_ALIGN_THRHD_NAME, threshold) < 0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get threshold");
    if (alignment)
        if(H5P_get(plist, H5F_ACS_ALIGN_NAME, alignment) < 0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get alignment");

done:
    FUNC_LEAVE_API(ret_value);
}


/*-------------------------------------------------------------------------
 * Function:	H5P_set_driver
 *
 * Purpose:	Set the file driver (DRIVER_ID) for a file access or data
 *		transfer property list (PLIST_ID) and supply an optional
 *		struct containing the driver-specific properites
 *		(DRIVER_INFO).  The driver properties will be copied into the
 *		property list and the reference count on the driver will be
 *		incremented, allowing the caller to close the driver ID but
 *		still use the property list.
 *
 * Return:	Success:	Non-negative
 *
 *		Failure:	Negative
 *
 * Programmer:	Robb Matzke
 *              Tuesday, August  3, 1999
 *
 * Modifications:
 *
 * 		Raymond Lu
 * 		Tuesday, Oct 23, 2001
 *		Changed the file access list design to the new generic
 *		property list.
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5P_set_driver(H5P_genplist_t *plist, hid_t new_driver_id, const void *new_driver_info)
{
    hid_t driver_id;            /* VFL driver ID */
    void *driver_info;          /* VFL driver info */
    herr_t ret_value=SUCCEED;   /* Return value */

    FUNC_ENTER_NOAPI(H5P_set_driver, FAIL);

    if (NULL==H5I_object_verify(new_driver_id, H5I_VFL))
        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file driver ID");

    if( TRUE == H5P_isa_class(plist->plist_id, H5P_FILE_ACCESS) ) {
        /* Get the current driver information */
        if(H5P_get(plist, H5F_ACS_FILE_DRV_ID_NAME, &driver_id) < 0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get driver ID");
        if(H5P_get(plist, H5F_ACS_FILE_DRV_INFO_NAME, &driver_info) < 0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET,FAIL,"can't get driver info");

        /* Close the driver for the property list */
        if(H5FD_fapl_close(driver_id, driver_info)<0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't reset driver")

        /* Set the driver for the property list */
        if(H5FD_fapl_open(plist, new_driver_id, new_driver_info)<0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set driver")
    } else if( TRUE == H5P_isa_class(plist->plist_id, H5P_DATASET_XFER) ) {
        /* Get the current driver information */
        if(H5P_get(plist, H5D_XFER_VFL_ID_NAME, &driver_id)<0)
            HGOTO_ERROR (H5E_PLIST, H5E_CANTGET, FAIL, "can't retrieve VFL driver ID");
        if(H5P_get(plist, H5D_XFER_VFL_INFO_NAME, &driver_info)<0)
            HGOTO_ERROR (H5E_PLIST, H5E_CANTGET, FAIL, "can't retrieve VFL driver info");

        /* Close the driver for the property list */
        if(H5FD_dxpl_close(driver_id, driver_info)<0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't reset driver")

        /* Set the driver for the property list */
        if(H5FD_dxpl_open(plist, new_driver_id, new_driver_info)<0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set driver")
    } else {
        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file access or data transfer property list");
    }

done:
    FUNC_LEAVE_NOAPI(ret_value);
} /* end H5P_set_driver() */


/*-------------------------------------------------------------------------
 * Function:	H5Pset_driver
 *
 * Purpose:	Set the file driver (DRIVER_ID) for a file access or data
 *		transfer property list (PLIST_ID) and supply an optional
 *		struct containing the driver-specific properites
 *		(DRIVER_INFO).  The driver properties will be copied into the
 *		property list and the reference count on the driver will be
 *		incremented, allowing the caller to close the driver ID but
 *		still use the property list.
 *
 * Return:	Success:	Non-negative
 *
 *		Failure:	Negative
 *
 * Programmer:	Robb Matzke
 *              Tuesday, August  3, 1999
 *
 * Modifications:
 *
 * 		Raymond Lu
 * 		Tuesday, Oct 23, 2001
 *		Changed the file access list design to the new generic
 *		property list.
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pset_driver(hid_t plist_id, hid_t new_driver_id, const void *new_driver_info)
{
    H5P_genplist_t *plist;      /* Property list pointer */
    herr_t ret_value=SUCCEED;   /* Return value */

    FUNC_ENTER_API(H5Pset_driver, FAIL);
    H5TRACE3("e", "ii*x", plist_id, new_driver_id, new_driver_info);

    /* Check arguments */
    if(NULL == (plist = H5I_object_verify(plist_id, H5I_GENPROP_LST)))
        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list");
    if (NULL==H5I_object_verify(new_driver_id, H5I_VFL))
        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file driver ID");

    /* Set the driver */
    if(H5P_set_driver(plist,new_driver_id,new_driver_info)<0)
        HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set driver info");

done:
    FUNC_LEAVE_API(ret_value);
} /* end H5Pset_driver() */


/*-------------------------------------------------------------------------
 * Function:	H5P_get_driver
 *
 * Purpose:	Return the ID of the low-level file driver.  PLIST_ID should
 *		be a file access property list or data transfer propert list.
 *
 * Return:	Success:	A low-level driver ID which is the same ID
 *				used when the driver was set for the property
 *				list. The driver ID is only valid as long as
 *				the file driver remains registered.
 *
 *		Failure:	Negative
 *
 * Programmer:	Robb Matzke
 *		Thursday, February 26, 1998
 *
 * Modifications:
 *		Robb Matzke, 1999-08-03
 *		Rewritten to use the virtual file layer.
 *
 * 		Robb Matzke, 1999-08-05
 *		If the driver ID is H5FD_VFD_DEFAULT then substitute the
 *              current value of H5FD_SEC2.
 *
 * 		Quincey Koziol 2000-11-28
 *		Added internal function..
 *
 *		Raymond Lu, 2001-10-23
 *		Changed the file access list design to the new generic
 *		property list.
 *
 *-------------------------------------------------------------------------
 */
hid_t
H5P_get_driver(H5P_genplist_t *plist)
{
    hid_t	ret_value=FAIL;         /* Return value */

    FUNC_ENTER_NOAPI(H5P_get_driver, FAIL);

    /* Get the current driver ID */
    if(TRUE == H5P_isa_class(plist->plist_id, H5P_FILE_ACCESS) ) {
        if(H5P_get(plist, H5F_ACS_FILE_DRV_ID_NAME, &ret_value) < 0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get driver ID");
    } else if( TRUE == H5P_isa_class(plist->plist_id, H5P_DATASET_XFER) ) {
        if(H5P_get(plist, H5D_XFER_VFL_ID_NAME, &ret_value)<0)
            HGOTO_ERROR (H5E_PLIST, H5E_CANTGET, FAIL, "Can't retrieve VFL driver ID");
    } else {
        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file access or data transfer property list");
    }

    if (H5FD_VFD_DEFAULT==ret_value)
        ret_value = H5FD_SEC2;

done:
    FUNC_LEAVE_NOAPI(ret_value);
}


/*-------------------------------------------------------------------------
 * Function:	H5Pget_driver
 *
 * Purpose:	Return the ID of the low-level file driver.  PLIST_ID should
 *		be a file access property list or data transfer propert list.
 *
 * Return:	Success:	A low-level driver ID which is the same ID
 *				used when the driver was set for the property
 *				list. The driver ID is only valid as long as
 *				the file driver remains registered.
 *
 *		Failure:	Negative
 *
 * Programmer:	Robb Matzke
 *		Thursday, February 26, 1998
 *
 * Modifications:
 *		Robb Matzke, 1999-08-03
 *		Rewritten to use the virtual file layer.
 *
 * 		Robb Matzke, 1999-08-05
 *		If the driver ID is H5FD_VFD_DEFAULT then substitute the current value of
 *		H5FD_SEC2.
 *
 * 		Quincey Koziol 2000-11-28
 *		Added internal function..
 *-------------------------------------------------------------------------
 */
hid_t
H5Pget_driver(hid_t plist_id)
{
    H5P_genplist_t *plist;      /* Property list pointer */
    hid_t	ret_value;      /* Return value */

    FUNC_ENTER_API(H5Pget_driver, FAIL);
    H5TRACE1("i", "i", plist_id);

    if(NULL == (plist = H5I_object_verify(plist_id, H5I_GENPROP_LST)))
        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list");

    ret_value = H5P_get_driver(plist);

done:
    FUNC_LEAVE_API(ret_value);
}


/*-------------------------------------------------------------------------
 * Function:	H5P_get_driver_info
 *
 * Purpose:	Returns a pointer directly to the file driver-specific
 *		information of a file access or data transfer property list.
 *
 * Return:	Success:	Ptr to *uncopied* driver specific data
 *				structure if any.
 *
 *		Failure:	NULL. Null is also returned if the driver has
 *				not registered any driver-specific properties
 *				although no error is pushed on the stack in
 *				this case.
 *
 * Programmer:	Robb Matzke
 *              Wednesday, August  4, 1999
 *
 * Modifications:
 *
 *		Raymond Lu
 *		Tuesday, Oct 23, 2001
 *		Changed the file access list design to the new generic
 *		property list.
 *
 *-------------------------------------------------------------------------
 */
void *
H5P_get_driver_info(H5P_genplist_t *plist)
{
    void	*ret_value=NULL;

    FUNC_ENTER_NOAPI(H5P_get_driver_info, NULL);

    /* Get the current driver info */
    if( TRUE == H5P_isa_class(plist->plist_id, H5P_FILE_ACCESS) ) {
        if(H5P_get(plist, H5F_ACS_FILE_DRV_INFO_NAME, &ret_value) < 0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET,NULL,"can't get driver info");
    } else if( TRUE == H5P_isa_class(plist->plist_id, H5P_DATASET_XFER) ) {
        if(H5P_get(plist, H5D_XFER_VFL_INFO_NAME, &ret_value)<0)
            HGOTO_ERROR (H5E_PLIST, H5E_CANTGET, NULL, "Can't retrieve VFL driver ID");
    } else {
        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not a file access or data transfer property list");
    }

done:
    FUNC_LEAVE_NOAPI(ret_value);
} /* end H5P_get_driver_info() */


/*-------------------------------------------------------------------------
 * Function:	H5Pget_driver_info
 *
 * Purpose:	Returns a pointer directly to the file driver-specific
 *		information of a file access or data transfer property list.
 *
 * Return:	Success:	Ptr to *uncopied* driver specific data
 *				structure if any.
 *
 *		Failure:	NULL. Null is also returned if the driver has
 *				not registered any driver-specific properties
 *				although no error is pushed on the stack in
 *				this case.
 *
 * Programmer:	Robb Matzke
 *              Wednesday, August  4, 1999
 *
 * Modifications:
 *
 *		Raymond Lu
 *		Tuesday, Oct 23, 2001
 *		Changed the file access list design to the new generic
 *		property list.
 *
 *-------------------------------------------------------------------------
 */
void *
H5Pget_driver_info(hid_t plist_id)
{
    H5P_genplist_t *plist;      /* Property list pointer */
    void	*ret_value;     /* Return value */

    FUNC_ENTER_API(H5Pget_driver_info, NULL);

    if(NULL == (plist = H5I_object_verify(plist_id, H5I_GENPROP_LST)))
        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not a property list");

    if((ret_value=H5P_get_driver_info(plist))==NULL)
        HGOTO_ERROR(H5E_PLIST,H5E_CANTGET,NULL,"can't get driver info");

done:
    FUNC_LEAVE_API(ret_value);
} /* end H5Pget_driver_info() */


/*-------------------------------------------------------------------------
 * Function:    H5Pset_family_offset
 *
 * Purpose:     Set offset for family driver.  This file access property
 *              list will be passed to H5Fget_vfd_handle or H5FDget_vfd_handle
 *              to retrieve VFD file handle.
 *
 * Return:      Success:        Non-negative value.
 *
 *              Failure:        Negative value.
 *
 * Programmer:  Raymond Lu
 *              Sep 17, 2002
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
*/
herr_t
H5Pset_family_offset(hid_t fapl_id, hsize_t offset)
{
    H5P_genplist_t      *plist;                 /* Property list pointer */
    herr_t              ret_value=SUCCEED;      /* return value */

    FUNC_ENTER_API(H5Pset_family_offset, FAIL);
    H5TRACE2("e", "ih", fapl_id, offset);

    /* Get the plist structure */
    if(H5P_DEFAULT == fapl_id)
        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "can't modify default property list");
    if(NULL == (plist = H5P_object_verify(fapl_id,H5P_FILE_ACCESS)))
         HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");
    /* Set values */
    if((ret_value=H5P_set_family_offset(plist, offset)) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set family offset");

done:
    FUNC_LEAVE_API(ret_value);
}


/*-------------------------------------------------------------------------
 * Function:    H5P_set_family_offset
 *
 * Purpose:     Set offset for family driver.  Private function for
 *              H5Pset_family_offset
 *
 * Return:      Success:        Non-negative value.
 *
 *              Failure:        Negative value.
 *
 * Programmer:  Raymond Lu
 *              Sep 17, 2002
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5P_set_family_offset(H5P_genplist_t *plist, hsize_t offset)
{
    herr_t      ret_value=SUCCEED;

    FUNC_ENTER_NOAPI(H5P_set_family_offset, FAIL);

    if( TRUE == H5P_isa_class(plist->plist_id, H5P_FILE_ACCESS) ) {
         if(H5P_set(plist, H5F_ACS_FAMILY_OFFSET_NAME, &offset) < 0)
              HGOTO_ERROR(H5E_PLIST, H5E_CANTSET,FAIL,"can't set offset for family file");
    } else {
         HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file access or data transfer property list");
    }

done:
    FUNC_LEAVE_NOAPI(ret_value);
}


/*-------------------------------------------------------------------------
 * Function:    H5Pget_family_offset
 *
 * Purpose:     Get offset for family driver.  This file access property
 *              list will be passed to H5Fget_vfd_handle or H5FDget_vfd_handle
 *              to retrieve VFD file handle.
 *
 * Return:      Success:        Non-negative value.
 *
 *              Failure:        Negative value.
 *
 * Programmer:  Raymond Lu
 *              Sep 17, 2002
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pget_family_offset(hid_t fapl_id, hsize_t *offset)
{
    H5P_genplist_t      *plist;                 /* Property list pointer */
    herr_t              ret_value=SUCCEED;      /* return value */

    FUNC_ENTER_API(H5Pget_family_offset, FAIL);
    H5TRACE2("e", "i*h", fapl_id, offset);

    /* Get the plist structure */
    if(H5P_DEFAULT == fapl_id)
        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "can't modify default property list");
    if(NULL == (plist = H5P_object_verify(fapl_id,H5P_FILE_ACCESS)))
         HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");
    /* Set values */
    if((ret_value=H5P_get_family_offset(plist, offset)) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't get family offset");

done:
    FUNC_LEAVE_API(ret_value);
}


/*-------------------------------------------------------------------------
 * Function:    H5P_get_family_offset
 *
 * Purpose:     Get offset for family driver.  Private function for
 *              H5Pget_family_offset
 *
 * Return:      Success:        Non-negative value.
 *
 *              Failure:        Negative value.
 *
 * Programmer:  Raymond Lu
 *              Sep 17, 2002
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5P_get_family_offset(H5P_genplist_t *plist, hsize_t *offset)
{
    herr_t      ret_value=SUCCEED;

    FUNC_ENTER_NOAPI(H5P_get_family_offset, FAIL);

    if( TRUE == H5P_isa_class(plist->plist_id, H5P_FILE_ACCESS) ) {
        if(H5P_get(plist, H5F_ACS_FAMILY_OFFSET_NAME, offset) < 0)
             HGOTO_ERROR(H5E_PLIST, H5E_CANTSET,FAIL,"can't set offset for family file");
    } else {
        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file access or data transfer property list");
    }

done:
    FUNC_LEAVE_NOAPI(ret_value);
}


/*-------------------------------------------------------------------------
 * Function:    H5Pset_multi_type
 *
 * Purpose:     Set data type for multi driver.  This file access property
 *              list will be passed to H5Fget_vfd_handle or H5FDget_vfd_handle
 *              to retrieve VFD file handle.
 *
 * Return:      Success:        Non-negative value.
 *
 *              Failure:        Negative value.
 *
 * Programmer:  Raymond Lu
 *              Sep 17, 2002
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pset_multi_type(hid_t fapl_id, H5FD_mem_t type)
{
    H5P_genplist_t      *plist;                 /* Property list pointer */
    herr_t              ret_value=SUCCEED;      /* return value */

    FUNC_ENTER_API(H5Pset_multi_type, FAIL);
    H5TRACE2("e", "iMt", fapl_id, type);

    /* Get the plist structure */
    if(H5P_DEFAULT == fapl_id)
        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "can't modify default property list");
    if(NULL == (plist = H5P_object_verify(fapl_id,H5P_FILE_ACCESS)))
         HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");
    /* Set values */
    if((ret_value=H5P_set_multi_type(plist, type)) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set data type for multi driver");

done:
    FUNC_LEAVE_API(ret_value);
}


/*-------------------------------------------------------------------------
 * Function:    H5P_set_multi_type
 *
 * Purpose:     Set data type for multi file driver.  Private function for
 *              H5Pset_multi_type.
 *
 * Return:      Success:        Non-negative value.
 *
 *              Failure:        Negative value.
 *
 * Programmer:  Raymond Lu
 *              Sep 17, 2002
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5P_set_multi_type(H5P_genplist_t *plist, H5FD_mem_t type)
{
    herr_t      ret_value=SUCCEED;

    FUNC_ENTER_NOAPI(H5P_set_multi_type, FAIL);

    if( TRUE == H5P_isa_class(plist->plist_id, H5P_FILE_ACCESS) ) {
         if(H5P_set(plist, H5F_ACS_MULTI_TYPE_NAME, &type) < 0)
                HGOTO_ERROR(H5E_PLIST, H5E_CANTSET,FAIL,"can't set type for multi driver");
    } else {
         HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file access or data transfer property list");
    }

done:
    FUNC_LEAVE_NOAPI(ret_value);
}


/*-------------------------------------------------------------------------
 * Function:    H5Pget_multi_type
 *
 * Purpose:     Get data type for multi driver.  This file access property
 *              list will be passed to H5Fget_vfd_handle or H5FDget_vfd_handle
 *              to retrieve VFD file handle.
 *
 * Return:      Success:        Non-negative value.
 *
 *              Failure:        Negative value.
 *
 * Programmer:  Raymond Lu
 *              Sep 17, 2002
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pget_multi_type(hid_t fapl_id, H5FD_mem_t *type)
{
    H5P_genplist_t      *plist;                 /* Property list pointer */
    herr_t              ret_value=SUCCEED;      /* return value */

    FUNC_ENTER_API(H5Pget_multi_type, FAIL);
    H5TRACE2("e", "i*Mt", fapl_id, type);

    /* Get the plist structure */
    if(H5P_DEFAULT == fapl_id)
        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "can't modify default property list");
    if(NULL == (plist = H5P_object_verify(fapl_id,H5P_FILE_ACCESS)))
         HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");
    /* Set values */
    if((ret_value=H5P_get_multi_type(plist, type)) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't get data type for multi driver");

done:
    FUNC_LEAVE_API(ret_value);
}


/*-------------------------------------------------------------------------
 * Function:    H5P_get_multi_type
 *
 * Purpose:     Get data type for multi file driver.  Private function for
 *              H5Pget_multi_type.
 *
 * Return:      Success:        Non-negative value.
 *
 *              Failure:        Negative value.
 *
 * Programmer:  Raymond Lu
 *              Sep 17, 2002
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5P_get_multi_type(H5P_genplist_t *plist, H5FD_mem_t *type)
{
    herr_t      ret_value=SUCCEED;

    FUNC_ENTER_NOAPI(H5P_get_multi_type, FAIL);

    if( TRUE == H5P_isa_class(plist->plist_id, H5P_FILE_ACCESS) ) {
         if(H5P_get(plist, H5F_ACS_MULTI_TYPE_NAME, type) < 0)
             HGOTO_ERROR(H5E_PLIST, H5E_CANTSET,FAIL,"can't get type for multi driver");
    } else {
         HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file access property list");
    }

done:
    FUNC_LEAVE_NOAPI(ret_value);
}


/*-------------------------------------------------------------------------
 * Function:	H5Pset_cache
 *
 * Purpose:	Set the number of objects in the meta data cache and the
 *		maximum number of chunks and bytes in the raw data chunk
 *		cache.
 *
 * 		The RDCC_W0 value should be between 0 and 1 inclusive and
 *		indicates how much chunks that have been fully read or fully
 *		written are favored for preemption.  A value of zero means
 *		fully read or written chunks are treated no differently than
 *		other chunks (the preemption is strictly LRU) while a value
 *		of one means fully read chunks are always preempted before
 *		other chunks.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Robb Matzke
 *              Tuesday, May 19, 1998
 *
 * Modifications:
 *
 *		Raymond Lu
 *		Tuesday, Oct 23, 2001
 *		Changed the file access list to the new generic property list.
 *
 *		J. Mainzer
 *		Thurs. 3/17/05
 *		The mdc_nelmts entry is no more in the FAPL, so I modified
 * 		the code to ignore it.
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pset_cache(hid_t plist_id, int UNUSED mdc_nelmts,
	     size_t rdcc_nelmts, size_t rdcc_nbytes, double rdcc_w0)
{
    H5P_genplist_t *plist;      /* Property list pointer */
    herr_t ret_value=SUCCEED;   /* return value */

    FUNC_ENTER_API(H5Pset_cache, FAIL);
    H5TRACE5("e", "iIszzd", plist_id, mdc_nelmts, rdcc_nelmts, rdcc_nbytes,
             rdcc_w0);

    /* Check arguments */
    if (rdcc_w0<0.0 || rdcc_w0>1.0)
        HGOTO_ERROR (H5E_ARGS, H5E_BADVALUE, FAIL, "raw data cache w0 value must be between 0.0 and 1.0 inclusive");

    /* Get the plist structure */
    if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS)))
        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");

    /* Set sizes */
    if(H5P_set(plist, H5F_ACS_DATA_CACHE_ELMT_SIZE_NAME, &rdcc_nelmts) < 0)
        HGOTO_ERROR(H5E_PLIST, H5E_CANTSET,FAIL, "can't set data cache element size");
    if(H5P_set(plist, H5F_ACS_DATA_CACHE_BYTE_SIZE_NAME, &rdcc_nbytes) < 0)
        HGOTO_ERROR(H5E_PLIST, H5E_CANTSET,FAIL, "can't set data cache byte size");
    if(H5P_set(plist, H5F_ACS_PREEMPT_READ_CHUNKS_NAME, &rdcc_w0) < 0)
        HGOTO_ERROR(H5E_PLIST, H5E_CANTSET,FAIL, "can't set preempt read chunks");

done:
    FUNC_LEAVE_API(ret_value);
}


/*-------------------------------------------------------------------------
 * Function:	H5Pget_cache
 *
 * Purpose:	Retrieves the maximum possible number of elements in the meta
 *		data cache and the maximum possible number of elements and
 *		bytes and the RDCC_W0 value in the raw data chunk cache.  Any
 *		(or all) arguments may be null pointers in which case the
 *		corresponding datum is not returned.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Robb Matzke
 *              Tuesday, May 19, 1998
 *
 * Modifications:
 *
 *		Raymond Lu
 *		Tuesday, Oct 23, 2001
 *		Changed the file access list to the new generic property
 *		list.
 *
 *		J Mainzer
 *		Thurs, 3/17/05
 *		The mdc_nelmts fapl entry is no more, so we now just
 *		return a constant when that value is requested.
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pget_cache(hid_t plist_id, int *mdc_nelmts,
	     size_t *rdcc_nelmts, size_t *rdcc_nbytes, double *rdcc_w0)
{
    H5P_genplist_t *plist;      /* Property list pointer */
    herr_t ret_value=SUCCEED;   /* return value */

    FUNC_ENTER_API(H5Pget_cache, FAIL);
    H5TRACE5("e", "i*Is*z*z*d", plist_id, mdc_nelmts, rdcc_nelmts, rdcc_nbytes,
             rdcc_w0);

    /* Get the plist structure */
    if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS)))
        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");

    /* Get sizes */

    /* the mdc_nelmts FAPL entry no longer exists, so just return a constant */
    if (mdc_nelmts)
        *mdc_nelmts = 0;

    if (rdcc_nelmts)
        if(H5P_get(plist, H5F_ACS_DATA_CACHE_ELMT_SIZE_NAME, rdcc_nelmts) < 0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET,FAIL, "can't get data cache element size");
    if (rdcc_nbytes)
        if(H5P_get(plist, H5F_ACS_DATA_CACHE_BYTE_SIZE_NAME, rdcc_nbytes) < 0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET,FAIL, "can't get data cache byte size");
    if (rdcc_w0)
        if(H5P_get(plist, H5F_ACS_PREEMPT_READ_CHUNKS_NAME, rdcc_w0) < 0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET,FAIL, "can't get preempt read chunks");

done:
    FUNC_LEAVE_API(ret_value);
}


/*-------------------------------------------------------------------------
 * Function:	H5Pset_mdc_config
 *
 * Purpose:	Set the initial metadata cache resize configuration in the
 *		target FAPL.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	J. Mainzer
 *              Thursday, April 7, 2005
 *
 * Modifications:
 *
 *		Done.
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pset_mdc_config(hid_t                 plist_id,
                  H5AC_cache_config_t *config_ptr)
{
    H5P_genplist_t *plist;      /* Property list pointer */
    herr_t ret_value=SUCCEED;   /* return value */

    FUNC_ENTER_API(H5Pset_mdc_config, FAIL);
    H5TRACE2("e", "i*x", plist_id, config_ptr);

    /* Get the plist structure */
    if( NULL == ( plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS) ) ) {

        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");
    }

    /* validate the new configuration */
    if ( H5AC_validate_config(config_ptr) < 0 ) {

        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, \
                    "invalid metadata cache configuration");
    }

    /* set the modified config */

    /* If we ever support multiple versions of H5AC_cache_config_t, we
     * will have to test the version and do translation here.
     */

    if(H5P_set(plist, H5F_ACS_META_CACHE_INIT_CONFIG_NAME, config_ptr)<0) {

        HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, \
                    "can't set metadata cache initial config");
    }

done:

    FUNC_LEAVE_API(ret_value);

} /* H5Pset_mdc_config() */


/*-------------------------------------------------------------------------
 * Function:	H5Pget_mdc_config
 *
 * Purpose:	Retrieve the metadata cache initial resize configuration
 *		from the target FAPL.
 *
 *		Observe that the function will fail if config_ptr is
 *		NULL, or if config_ptr->version specifies an unknown
 *		version of H5AC_cache_config_t.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	J. Mainzer
 *              Thursday, April 7, 2005
 *
 * Modifications:
 *
 *		None.
 *
 *-------------------------------------------------------------------------
 */

herr_t
H5Pget_mdc_config(hid_t                 plist_id,
                  H5AC_cache_config_t *config_ptr)
{
    H5P_genplist_t *plist;      /* Property list pointer */
    herr_t ret_value = SUCCEED;   /* return value */

    FUNC_ENTER_API(H5Pget_mdc_config, FAIL);
    H5TRACE2("e", "i*x", plist_id, config_ptr);

    /* Get the plist structure */
    if ( NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS)) ) {

        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");
    }

    /* validate the config_ptr */
    if ( config_ptr == NULL ) {

        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "NULL config_ptr on entry.")
    }

    if ( config_ptr->version != H5AC__CURR_CACHE_CONFIG_VERSION ) {

        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "Unknown config version.")
    }

    /* If we ever support multiple versions of H5AC_cache_config_t, we
     * will have to get the cannonical version here, and then translate
     * to the version of the structure supplied.
     */

    /* Get the current initial metadata cache resize configuration */
    if ( H5P_get(plist, H5F_ACS_META_CACHE_INIT_CONFIG_NAME, config_ptr) < 0 ) {

        HGOTO_ERROR(H5E_PLIST, H5E_CANTGET,FAIL, \
                    "can't get metadata cache initial resize config");
    }

done:

    FUNC_LEAVE_API(ret_value);

} /* H5Pget_mdc_config() */


/*-------------------------------------------------------------------------
 * Function:	H5Pset_gc_references
 *
 * Purpose:	Sets the flag for garbage collecting references for the file.
 *		Dataset region references (and other reference types
 *		probably) use space in the file heap.  If garbage collection
 *		is on and the user passes in an uninitialized value in a
 *		reference structure, the heap might get corrupted.  When
 *		garbage collection is off however and the user re-uses a
 *		reference, the previous heap block will be orphaned and not
 *		returned to the free heap space.  When garbage collection is
 *		on, the user must initialize the reference structures to 0 or
 *		risk heap corruption.
 *
 *		Default value for garbage collecting references is off, just
 *		to be on the safe side.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *		June, 1999
 *
 * Modifications:
 *
 *		Raymond Lu
 * 		Tuesday, Oct 23, 2001
 *		Changed the file access list to the new generic property
 *		list.
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pset_gc_references(hid_t plist_id, unsigned gc_ref)
{
    H5P_genplist_t *plist;      /* Property list pointer */
    herr_t ret_value=SUCCEED;   /* return value */

    FUNC_ENTER_API(H5Pset_gc_references, FAIL);
    H5TRACE2("e", "iIu", plist_id, gc_ref);

    /* Get the plist structure */
    if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS)))
        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");

    /* Set values */
    if(H5P_set(plist, H5F_ACS_GARBG_COLCT_REF_NAME, &gc_ref) < 0)
        HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set garbage collect reference");

done:
    FUNC_LEAVE_API(ret_value);
}


/*-------------------------------------------------------------------------
 * Function:	H5Pget_gc_references
 *
 * Purpose:	Returns the current setting for the garbage collection
 *		references property from a file access property list.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              June, 1999
 *
 * Modifications:
 *
 *		Raymond Lu
 *		Tuesday, Oct 23, 2001
 *		Changed the file access list to the new generic property
 *		list.
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pget_gc_references(hid_t plist_id, unsigned *gc_ref/*out*/)
{
    H5P_genplist_t *plist;      /* Property list pointer */
    herr_t ret_value=SUCCEED;   /* return value */

    FUNC_ENTER_API(H5Pget_gc_references, FAIL);
    H5TRACE2("e", "ix", plist_id, gc_ref);

    /* Get the plist structure */
    if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS)))
        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");

    /* Get values */
    if (gc_ref)
        if(H5P_get(plist, H5F_ACS_GARBG_COLCT_REF_NAME, gc_ref) < 0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get garbage collect reference");

done:
    FUNC_LEAVE_API(ret_value);
}


/*-------------------------------------------------------------------------
 * Function:    H5Pset_fclose_degree
 *
 * Purpose:     Sets the degree for the file close behavior.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Raymond Lu
 *              November, 2001
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pset_fclose_degree(hid_t plist_id, H5F_close_degree_t degree)
{
    H5P_genplist_t *plist;      /* Property list pointer */
    herr_t ret_value = SUCCEED;   /* return value */

    FUNC_ENTER_API(H5Pset_fclose_degree, FAIL)
    H5TRACE2("e", "iFd", plist_id, degree);

    /* Get the plist structure */
    if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS)))
        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID")

    /* Set values */
    if(H5P_set(plist, H5F_ACS_CLOSE_DEGREE_NAME, &degree) < 0)
        HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set file close degree")

done:
    FUNC_LEAVE_API(ret_value)
} /* end H5Pset_fclose_degree() */


/*-------------------------------------------------------------------------
 * Function:    H5Pget_fclose_degree
 *
 * Purpose:     Returns the degree for the file close behavior.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Raymond Lu
 *              November, 2001
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pget_fclose_degree(hid_t plist_id, H5F_close_degree_t *degree)
{
    H5P_genplist_t *plist;      /* Property list pointer */
    herr_t ret_value = SUCCEED;   /* return value */

    FUNC_ENTER_API(H5Pget_fclose_degree, FAIL)
    H5TRACE2("e", "i*Fd", plist_id, degree);

    /* Get the plist structure */
    if(NULL == (plist = H5P_object_verify(plist_id, H5P_FILE_ACCESS)))
        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID")

    if(degree && H5P_get(plist, H5F_ACS_CLOSE_DEGREE_NAME, degree) < 0)
        HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get file close degree")

done:
    FUNC_LEAVE_API(ret_value)
} /* end H5Pget_fclose_degree() */


/*-------------------------------------------------------------------------
 * Function:	H5Pset_meta_block_size
 *
 * Purpose:	Sets the minimum size of metadata block allocations when
 *      the H5FD_FEAT_AGGREGATE_METADATA is set by a VFL driver.
 *      Each "raw" metadata block is allocated to be this size and then
 *      specific pieces of metadata (object headers, local heaps, B-trees, etc)
 *      are sub-allocated from this block.
 *
 *		The default value is set to 2048 (bytes), indicating that metadata
 *      will be attempted to be bunched together in (at least) 2K blocks in
 *      the file.  Setting the value to 0 with this API function will
 *      turn off the metadata aggregation, even if the VFL driver attempts to
 *      use that strategy.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              Friday, August 25, 2000
 *
 * Modifications:
 *
 *		Raymond Lu
 *		Tuesday, Oct 23, 2001
 *		Changed the file access list to the new generic property
 *		list.
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pset_meta_block_size(hid_t plist_id, hsize_t size)
{
    H5P_genplist_t *plist;      /* Property list pointer */
    herr_t ret_value=SUCCEED;   /* return value */

    FUNC_ENTER_API(H5Pset_meta_block_size, FAIL);
    H5TRACE2("e", "ih", plist_id, size);

    /* Get the plist structure */
    if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS)))
        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");

    /* Set values */
    if(H5P_set(plist, H5F_ACS_META_BLOCK_SIZE_NAME, &size) < 0)
        HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set meta data block size");

done:
    FUNC_LEAVE_API(ret_value);
}


/*-------------------------------------------------------------------------
 * Function:	H5Pget_meta_block_size
 *
 * Purpose:	Returns the current settings for the metadata block allocation
 *      property from a file access property list.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              Friday, August 29, 2000
 *
 * Modifications:
 *
 *		Raymond Lu
 * 		Tuesday, Oct 23, 2001
 *		Changed the file access list to the new generic property
 *		list.
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pget_meta_block_size(hid_t plist_id, hsize_t *size/*out*/)
{
    H5P_genplist_t *plist;      /* Property list pointer */
    herr_t ret_value=SUCCEED;   /* return value */

    FUNC_ENTER_API(H5Pget_meta_block_size, FAIL);
    H5TRACE2("e", "ix", plist_id, size);

    /* Get the plist structure */
    if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS)))
        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");

    /* Get values */
    if (size) {
        if(H5P_get(plist, H5F_ACS_META_BLOCK_SIZE_NAME, size) < 0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get meta data block size");
    } /* end if */

done:
    FUNC_LEAVE_API(ret_value);
}


/*-------------------------------------------------------------------------
 * Function:	H5Pset_sieve_buf_size
 *
 * Purpose:	Sets the maximum size of the data seive buffer used for file
 *      drivers which are capable of using data sieving.  The data sieve
 *      buffer is used when performing I/O on datasets in the file.  Using a
 *      buffer which is large anough to hold several pieces of the dataset
 *      being read in for hyperslab selections boosts performance by quite a
 *      bit.
 *
 *		The default value is set to 64KB, indicating that file I/O for raw data
 *      reads and writes will occur in at least 64KB blocks.
 *      Setting the value to 0 with this API function will turn off the
 *      data sieving, even if the VFL driver attempts to use that strategy.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              Thursday, September 21, 2000
 *
 * Modifications:
 *
 *		Raymond Lu
 * 		Tuesday, Oct 23, 2001
 *		Changed the file access list to the new generic property
 *		list.
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pset_sieve_buf_size(hid_t plist_id, size_t size)
{
    H5P_genplist_t *plist;      /* Property list pointer */
    herr_t ret_value=SUCCEED;   /* return value */

    FUNC_ENTER_API(H5Pset_sieve_buf_size, FAIL);
    H5TRACE2("e", "iz", plist_id, size);

    /* Get the plist structure */
    if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS)))
        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");

    /* Set values */
    if(H5P_set(plist, H5F_ACS_SIEVE_BUF_SIZE_NAME, &size) < 0)
        HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set sieve buffer size");

done:
    FUNC_LEAVE_API(ret_value);
} /* end H5Pset_sieve_buf_size() */


/*-------------------------------------------------------------------------
 * Function:	H5Pget_sieve_buf_size
 *
 * Purpose:	Returns the current settings for the data sieve buffer size
 *      property from a file access property list.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              Thursday, September 21, 2000
 *
 * Modifications:
 *
 *		Raymond Lu
 * 		Tuesday, Oct 23, 2001
 *		Changed the file access list to the new generic property
 *		list.
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pget_sieve_buf_size(hid_t plist_id, size_t *size/*out*/)
{
    H5P_genplist_t *plist;      /* Property list pointer */
    herr_t ret_value=SUCCEED;   /* return value */

    FUNC_ENTER_API(H5Pget_sieve_buf_size, FAIL);
    H5TRACE2("e", "ix", plist_id, size);

    /* Get the plist structure */
    if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS)))
        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");

    /* Get values */
    if (size)
        if(H5P_get(plist, H5F_ACS_SIEVE_BUF_SIZE_NAME, size) < 0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get sieve buffer size");

done:
    FUNC_LEAVE_API(ret_value);
} /* end H5Pget_sieve_buf_size() */


/*-------------------------------------------------------------------------
 * Function:	H5Pset_small_data_block_size
 *
 * Purpose:	Sets the minimum size of "small" raw data block allocations
 *      when the H5FD_FEAT_AGGREGATE_SMALLDATA is set by a VFL driver.
 *      Each "small" raw data block is allocated to be this size and then
 *      pieces of raw data which are small enough to fit are sub-allocated from
 *      this block.
 *
 *	The default value is set to 2048 (bytes), indicating that raw data
 *      smaller than this value will be attempted to be bunched together in (at
 *      least) 2K blocks in the file.  Setting the value to 0 with this API
 *      function will turn off the "small" raw data aggregation, even if the
 *      VFL driver attempts to use that strategy.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              Wednesday, June 5, 2002
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pset_small_data_block_size(hid_t plist_id, hsize_t size)
{
    H5P_genplist_t *plist;      /* Property list pointer */
    herr_t ret_value=SUCCEED;   /* return value */

    FUNC_ENTER_API(H5Pset_small_data_block_size, FAIL);
    H5TRACE2("e", "ih", plist_id, size);

    /* Get the plist structure */
    if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS)))
        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");

    /* Set values */
    if(H5P_set(plist, H5F_ACS_SDATA_BLOCK_SIZE_NAME, &size) < 0)
        HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set 'small data' block size");

done:
    FUNC_LEAVE_API(ret_value);
} /* end H5Pset_small_data_block_size() */


/*-------------------------------------------------------------------------
 * Function:	H5Pget_small_data_block_size
 *
 * Purpose:	Returns the current settings for the "small" raw data block
 *      allocation property from a file access property list.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              Wednesday, June 5, 2002
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pget_small_data_block_size(hid_t plist_id, hsize_t *size/*out*/)
{
    H5P_genplist_t *plist;      /* Property list pointer */
    herr_t ret_value=SUCCEED;   /* return value */

    FUNC_ENTER_API(H5Pget_small_data_block_size, FAIL);
    H5TRACE2("e", "ix", plist_id, size);

    /* Get the plist structure */
    if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS)))
        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");

    /* Get values */
    if (size) {
        if(H5P_get(plist, H5F_ACS_SDATA_BLOCK_SIZE_NAME, size) < 0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get 'small data' block size");
    } /* end if */

done:
    FUNC_LEAVE_API(ret_value);
} /* end H5Pget_small_data_block_size() */


/*-------------------------------------------------------------------------
 * Function:	H5Pset_latest_format
 *
 * Purpose:	Indicates that the library should always use the latest version
 *      of the file format when creating objects.  If this flag is not set,
 *      the library will always use the most backwardly compatibly format
 *      possible that can store the information about an object.
 *
 *	The default value is set to FALSE (creating backwardly compatible files)
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              Friday, September 9, 2006
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pset_latest_format(hid_t plist_id, hbool_t latest)
{
    H5P_genplist_t *plist;      /* Property list pointer */
    herr_t ret_value = SUCCEED;   /* return value */

    FUNC_ENTER_API(H5Pset_latest_format, FAIL)
    H5TRACE2("e", "ib", plist_id, latest);

    /* Get the plist structure */
    if(NULL == (plist = H5P_object_verify(plist_id, H5P_FILE_ACCESS)))
        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID")

    /* Set values */
    if(H5P_set(plist, H5F_ACS_LATEST_FORMAT_NAME, &latest) < 0)
        HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set 'latest format' flag")

done:
    FUNC_LEAVE_API(ret_value)
} /* end H5Pset_latest_format() */


/*-------------------------------------------------------------------------
 * Function:	H5Pget_latest_format
 *
 * Purpose:	Returns the current settings for the 'latest format' flag
 *      from a file access property list.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              Friday, September 9, 2006
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pget_latest_format(hid_t plist_id, hbool_t *latest/*out*/)
{
    H5P_genplist_t *plist;      /* Property list pointer */
    herr_t ret_value = SUCCEED; /* return value */

    FUNC_ENTER_API(H5Pget_latest_format, FAIL)
    H5TRACE2("e", "ix", plist_id, latest);

    /* Get the plist structure */
    if(NULL == (plist = H5P_object_verify(plist_id, H5P_FILE_ACCESS)))
        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID")

    /* Get value */
    if(latest)
        if(H5P_get(plist, H5F_ACS_LATEST_FORMAT_NAME, latest) < 0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get 'latest format' flag")

done:
    FUNC_LEAVE_API(ret_value)
} /* end H5Pget_latest_format() */

