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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-------------------------------------------------------------------------
*
* Created: H5HFbtree2.c
* Aug 7 2006
* Quincey Koziol <koziol@hdfgroup.org>
*
* Purpose: v2 B-tree callbacks for "huge" object tracker
*
*-------------------------------------------------------------------------
*/
/****************/
/* Module Setup */
/****************/
#define H5HF_PACKAGE /*suppress error about including H5HFpkg */
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5HFpkg.h" /* Fractal heaps */
#include "H5MFprivate.h" /* File memory management */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Package Typedefs */
/********************/
/********************/
/* Local Prototypes */
/********************/
/* v2 B-tree function callbacks */
herr_t H5HF_huge_bt2_found(const void *nrecord, void *op_data);
herr_t H5HF_huge_bt2_remove(const void *nrecord, void *op_data);
/* v2 B-tree driver callbacks */
static herr_t H5HF_huge_btree2_store(const H5B2_class_t *cls, void *native, const void *udata);
static herr_t H5HF_huge_btree2_retrieve(const H5B2_class_t *cls, void *udata, const void *native);
static herr_t H5HF_huge_btree2_compare(const H5B2_class_t *cls, const void *rec1, const void *rec2);
static herr_t H5HF_huge_btree2_encode(const H5F_t *f, const H5B2_class_t *cls, uint8_t *raw,
const void *native);
static herr_t H5HF_huge_btree2_decode(const H5F_t *f, const H5B2_class_t *cls, const uint8_t *raw,
void *native);
static herr_t H5HF_huge_btree2_debug(FILE *stream, const H5F_t *f, hid_t dxpl_id,
int indent, int fwidth, const H5B2_class_t *cls, const void *record, const void *_udata);
/*********************/
/* Package Variables */
/*********************/
const H5B2_class_t H5HF_BTREE2[1]={{ /* B-tree class information */
H5B2_FHEAP_ID, /* Type of B-tree */
0, /* Size of native record */
/* (computed at run-time for each heap) */
NULL, /* Class private information */
H5HF_huge_btree2_store, /* Record storage callback */
H5HF_huge_btree2_retrieve, /* Record retrieval callback */
H5HF_huge_btree2_compare, /* Record comparison callback */
H5HF_huge_btree2_encode, /* Record encoding callback */
H5HF_huge_btree2_decode, /* Record decoding callback */
H5HF_huge_btree2_debug /* Record debugging callback */
}};
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/*-------------------------------------------------------------------------
* Function: H5HF_huge_bt2_found
*
* Purpose: Retrieve record for 'huge' object, when it's found in the
* v2 B-tree
*
* Return: Success: non-negative
* Failure: negative
*
* Programmer: Quincey Koziol
* Tuesday, August 8, 2006
*
*-------------------------------------------------------------------------
*/
herr_t
H5HF_huge_bt2_found(const void *nrecord, void *op_data)
{
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5HF_huge_bt2_found)
#ifdef QAK
HDfprintf(stderr, "%s: nrecord = {%a, %Hu, %Hu}\n", "H5HF_huge_bt2_store",
((const H5HF_huge_bt2_rec_t *)nrecord)->addr,
((const H5HF_huge_bt2_rec_t *)nrecord)->len,
((const H5HF_huge_bt2_rec_t *)nrecord)->id);
#endif /* QAK */
*(H5HF_huge_bt2_rec_t *)op_data = *(const H5HF_huge_bt2_rec_t *)nrecord;
FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5HF_huge_bt2_found() */
/*-------------------------------------------------------------------------
* Function: H5HF_huge_bt2_remove
*
* Purpose: Free space for 'huge' object, as v2 B-tree is being deleted
*
* Return: Success: non-negative
* Failure: negative
*
* Programmer: Quincey Koziol
* Tuesday, August 8, 2006
*
*-------------------------------------------------------------------------
*/
herr_t
H5HF_huge_bt2_remove(const void *nrecord, void *_udata)
{
H5HF_huge_remove_ud1_t *udata = (H5HF_huge_remove_ud1_t *)_udata; /* User callback data */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5HF_huge_bt2_remove)
/* Free the space in the file for the object being removed */
if(H5MF_xfree(udata->hdr->f, H5FD_MEM_FHEAP_HUGE_OBJ, udata->dxpl_id, ((const H5HF_huge_bt2_rec_t *)nrecord)->addr, ((const H5HF_huge_bt2_rec_t *)nrecord)->len) < 0)
HGOTO_ERROR(H5E_HEAP, H5E_CANTFREE, FAIL, "unable to free space for huge object on disk")
/* Set the length of the object removed */
udata->obj_len = ((const H5HF_huge_bt2_rec_t *)nrecord)->len;
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* H5HF_huge_bt2_remove() */
/*-------------------------------------------------------------------------
* Function: H5HF_huge_btree2_store
*
* Purpose: Store native information into record for v2 B-tree
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Quincey Koziol
* Monday, August 7, 2006
*
*-------------------------------------------------------------------------
*/
static herr_t
H5HF_huge_btree2_store(const H5B2_class_t UNUSED *cls, void *nrecord, const void *udata)
{
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5HF_huge_btree2_store)
*(H5HF_huge_bt2_rec_t *)nrecord = *(const H5HF_huge_bt2_rec_t *)udata;
FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5HF_huge_btree2_store() */
/*-------------------------------------------------------------------------
* Function: H5HF_huge_btree2_retrieve
*
* Purpose: Retrieve native information from record for v2 B-tree
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Quincey Koziol
* Monday, August 7, 2006
*
*-------------------------------------------------------------------------
*/
static herr_t
H5HF_huge_btree2_retrieve(const H5B2_class_t UNUSED *cls, void *udata, const void *nrecord)
{
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5HF_huge_btree2_retrieve)
*(H5HF_huge_bt2_rec_t *)udata = *(const H5HF_huge_bt2_rec_t *)nrecord;
FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5HF_huge_btree2_retrieve() */
/*-------------------------------------------------------------------------
* Function: H5HF_huge_btree2_compare
*
* Purpose: Compare two native information records, according to some key
*
* Return: <0 if rec1 < rec2
* =0 if rec1 == rec2
* >0 if rec1 > rec2
*
* Programmer: Quincey Koziol
* Monday, August 7, 2006
*
*-------------------------------------------------------------------------
*/
static herr_t
H5HF_huge_btree2_compare(const H5B2_class_t *cls, const void *_rec1, const void *_rec2)
{
const H5HF_huge_bt2_rec_t *rec1 = (const H5HF_huge_bt2_rec_t *)_rec1;
const H5HF_huge_bt2_rec_t *rec2 = (const H5HF_huge_bt2_rec_t *)_rec2;
const H5HF_hdr_t *hdr = (const H5HF_hdr_t *)cls->cls_private;
herr_t ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5HF_huge_btree2_compare)
#ifdef QAK
HDfprintf(stderr, "%s: hdr->huge_ids_direct = %t\n", "H5HF_huge_btree2_compare", hdr->huge_ids_direct);
HDfprintf(stderr, "%s: rec1 = {%a, %Hu, %Hu}\n", "H5HF_huge_btree2_compare", rec1->addr, rec1->len, rec1->id);
HDfprintf(stderr, "%s: rec2 = {%a, %Hu, %Hu}\n", "H5HF_huge_btree2_compare", rec2->addr, rec2->len, rec2->id);
#endif /* QAK */
/* Sort differently, depending on whether 'huge' object directly reference disk */
if(hdr->huge_ids_direct) {
if(rec1->addr < rec2->addr)
ret_value = -1;
else if(rec1->addr > rec2->addr)
ret_value = 1;
else if(rec1->len < rec2->len)
ret_value = -1;
else if(rec1->len > rec2->len)
ret_value = 1;
else
ret_value = 0;
} /* end if */
else
ret_value = (herr_t)(rec1->id - rec2->id);
FUNC_LEAVE_NOAPI(ret_value);
} /* H5HF_huge_btree2_compare() */
/*-------------------------------------------------------------------------
* Function: H5HF_huge_btree2_encode
*
* Purpose: Encode native information into raw form for storing on disk
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Quincey Koziol
* Monday, August 7, 2006
*
*-------------------------------------------------------------------------
*/
static herr_t
H5HF_huge_btree2_encode(const H5F_t *f, const H5B2_class_t *cls, uint8_t *raw, const void *_nrecord)
{
const H5HF_huge_bt2_rec_t *nrecord = (const H5HF_huge_bt2_rec_t *)_nrecord;
const H5HF_hdr_t *hdr = (const H5HF_hdr_t *)cls->cls_private;
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5HF_huge_btree2_encode)
/* Encode the record's common fields */
H5F_addr_encode(f, &raw, nrecord->addr);
H5F_ENCODE_LENGTH(f, raw, nrecord->len);
/* If 'huge' objects in this heap are not accessed directly, encode the ID also */
if(!hdr->huge_ids_direct)
UINT64ENCODE_VAR(raw, nrecord->id, hdr->huge_id_size)
FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5HF_huge_btree2_encode() */
/*-------------------------------------------------------------------------
* Function: H5HF_huge_btree2_decode
*
* Purpose: Decode raw disk form of record into native form
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Quincey Koziol
* Monday, August 7, 2006
*
*-------------------------------------------------------------------------
*/
static herr_t
H5HF_huge_btree2_decode(const H5F_t *f, const H5B2_class_t *cls, const uint8_t *raw, void *_nrecord)
{
H5HF_huge_bt2_rec_t *nrecord = (H5HF_huge_bt2_rec_t *)_nrecord;
const H5HF_hdr_t *hdr = (const H5HF_hdr_t *)cls->cls_private;
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5HF_huge_btree2_decode)
/* Decode the record's common fields */
H5F_addr_decode(f, &raw, &nrecord->addr);
H5F_DECODE_LENGTH(f, raw, nrecord->len);
/* If 'huge' objects in this heap are not accessed directly, decode the ID also */
if(!hdr->huge_ids_direct)
UINT64DECODE_VAR(raw, nrecord->id, hdr->huge_id_size)
else
nrecord->id = 0;
FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5HF_huge_btree2_decode() */
/*-------------------------------------------------------------------------
* Function: H5HF_huge_btree2_debug
*
* Purpose: Debug native form of record
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Quincey Koziol
* Monday, August 7, 2006
*
*-------------------------------------------------------------------------
*/
static herr_t
H5HF_huge_btree2_debug(FILE *stream, const H5F_t UNUSED *f, hid_t UNUSED dxpl_id,
int indent, int fwidth, const H5B2_class_t *cls, const void *_nrecord,
const void UNUSED *_udata)
{
const H5HF_huge_bt2_rec_t *nrecord = (const H5HF_huge_bt2_rec_t *)_nrecord;
const H5HF_hdr_t *hdr = (const H5HF_hdr_t *)cls->cls_private;
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5HF_huge_btree2_debug)
HDassert(nrecord);
if(hdr->huge_ids_direct)
HDfprintf(stream, "%*s%-*s {%a, %Hu}\n", indent, "", fwidth, "Record:",
nrecord->addr, nrecord->len);
else
HDfprintf(stream, "%*s%-*s {%a, %Hu, %Hu}\n", indent, "", fwidth, "Record:",
nrecord->addr, nrecord->len, nrecord->id);
FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5HF_huge_btree2_debug() */
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