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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* 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: H5Gbtree2.c
* Sep 9 2006
* Quincey Koziol
*
* Purpose: v2 B-tree callbacks for indexing fields on links
*
*-------------------------------------------------------------------------
*/
/****************/
/* Module Setup */
/****************/
#include "H5Gmodule.h" /* This source code file is part of the H5G module */
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5Gpkg.h" /* Groups */
#include "H5MMprivate.h" /* Memory management */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/*
* Data exchange structure for dense link storage. This structure is
* passed through the fractal heap layer to compare links.
*/
typedef struct H5G_fh_ud_cmp_t {
/* downward */
H5F_t *f; /* Pointer to file that fractal heap is in */
const char *name; /* Name of link to compare */
H5B2_found_t found_op; /* Callback when correct link is found */
void *found_op_data; /* Callback data when correct link is found */
/* upward */
int cmp; /* Comparison of two link names */
} H5G_fh_ud_cmp_t;
/********************/
/* Package Typedefs */
/********************/
/********************/
/* Local Prototypes */
/********************/
/* v2 B-tree function callbacks */
/* v2 B-tree driver callbacks for 'creation order' index */
static herr_t H5G__dense_btree2_corder_store(void *native, const void *udata);
static herr_t H5G__dense_btree2_corder_compare(const void *rec1, const void *rec2, int *result);
static herr_t H5G__dense_btree2_corder_encode(uint8_t *raw, const void *native, void *ctx);
static herr_t H5G__dense_btree2_corder_decode(const uint8_t *raw, void *native, void *ctx);
static herr_t H5G__dense_btree2_corder_debug(FILE *stream, int indent, int fwidth, const void *record,
const void *_udata);
/* v2 B-tree driver callbacks for 'name' index */
static herr_t H5G__dense_btree2_name_store(void *native, const void *udata);
static herr_t H5G__dense_btree2_name_compare(const void *rec1, const void *rec2, int *result);
static herr_t H5G__dense_btree2_name_encode(uint8_t *raw, const void *native, void *ctx);
static herr_t H5G__dense_btree2_name_decode(const uint8_t *raw, void *native, void *ctx);
static herr_t H5G__dense_btree2_name_debug(FILE *stream, int indent, int fwidth, const void *record,
const void *_udata);
/* Fractal heap function callbacks */
static herr_t H5G__dense_fh_name_cmp(const void *obj, size_t obj_len, void *op_data);
/*********************/
/* Package Variables */
/*********************/
/* v2 B-tree class for indexing 'name' field of links */
const H5B2_class_t H5G_BT2_NAME[1] = {{
/* B-tree class information */
H5B2_GRP_DENSE_NAME_ID, /* Type of B-tree */
"H5B2_GRP_DENSE_NAME_ID", /* Name of B-tree class */
sizeof(H5G_dense_bt2_name_rec_t), /* Size of native record */
NULL, /* Create client callback context */
NULL, /* Destroy client callback context */
H5G__dense_btree2_name_store, /* Record storage callback */
H5G__dense_btree2_name_compare, /* Record comparison callback */
H5G__dense_btree2_name_encode, /* Record encoding callback */
H5G__dense_btree2_name_decode, /* Record decoding callback */
H5G__dense_btree2_name_debug /* Record debugging callback */
}};
/* v2 B-tree class for indexing 'creation order' field of links */
const H5B2_class_t H5G_BT2_CORDER[1] = {{
/* B-tree class information */
H5B2_GRP_DENSE_CORDER_ID, /* Type of B-tree */
"H5B2_GRP_DENSE_CORDER_ID", /* Name of B-tree class */
sizeof(H5G_dense_bt2_corder_rec_t), /* Size of native record */
NULL, /* Create client callback context */
NULL, /* Destroy client callback context */
H5G__dense_btree2_corder_store, /* Record storage callback */
H5G__dense_btree2_corder_compare, /* Record comparison callback */
H5G__dense_btree2_corder_encode, /* Record encoding callback */
H5G__dense_btree2_corder_decode, /* Record decoding callback */
H5G__dense_btree2_corder_debug /* Record debugging callback */
}};
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/*-------------------------------------------------------------------------
* Function: H5G__dense_fh_name_cmp
*
* Purpose: Compares the name of a link in a fractal heap to another
* name
*
* Return: SUCCEED/FAIL
*
* Programmer: Quincey Koziol
* Sep 11 2006
*
*-------------------------------------------------------------------------
*/
static herr_t
H5G__dense_fh_name_cmp(const void *obj, size_t obj_len, void *_udata)
{
H5G_fh_ud_cmp_t *udata = (H5G_fh_ud_cmp_t *)_udata; /* User data for 'op' callback */
H5O_link_t *lnk; /* Pointer to link created from heap object */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
/* Decode link information */
if (NULL == (lnk = (H5O_link_t *)H5O_msg_decode(udata->f, NULL, H5O_LINK_ID, obj_len,
(const unsigned char *)obj)))
HGOTO_ERROR(H5E_SYM, H5E_CANTDECODE, FAIL, "can't decode link")
/* Compare the string values */
udata->cmp = HDstrcmp(udata->name, lnk->name);
/* Check for correct link & callback to make */
if (udata->cmp == 0 && udata->found_op) {
if ((udata->found_op)(lnk, udata->found_op_data) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTOPERATE, FAIL, "link found callback failed")
} /* end if */
/* Release the space allocated for the link */
H5O_msg_free(H5O_LINK_ID, lnk);
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5G__dense_fh_name_cmp() */
/*-------------------------------------------------------------------------
* Function: H5G__dense_btree2_name_store
*
* Purpose: Store user information into native record for v2 B-tree
*
* Return: Success: non-negative
* Failure: negative
*
* Programmer: Quincey Koziol
* Saturday, September 9, 2006
*
*-------------------------------------------------------------------------
*/
static herr_t
H5G__dense_btree2_name_store(void *_nrecord, const void *_udata)
{
const H5G_bt2_ud_ins_t *udata = (const H5G_bt2_ud_ins_t *)_udata;
H5G_dense_bt2_name_rec_t *nrecord = (H5G_dense_bt2_name_rec_t *)_nrecord;
FUNC_ENTER_PACKAGE_NOERR
/* Copy user information info native record */
nrecord->hash = udata->common.name_hash;
H5MM_memcpy(nrecord->id, udata->id, (size_t)H5G_DENSE_FHEAP_ID_LEN);
FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5G__dense_btree2_name_store() */
/*-------------------------------------------------------------------------
* Function: H5G__dense_btree2_name_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, September 11, 2006
*
*-------------------------------------------------------------------------
*/
static herr_t
H5G__dense_btree2_name_compare(const void *_bt2_udata, const void *_bt2_rec, int *result)
{
const H5G_bt2_ud_common_t *bt2_udata = (const H5G_bt2_ud_common_t *)_bt2_udata;
const H5G_dense_bt2_name_rec_t *bt2_rec = (const H5G_dense_bt2_name_rec_t *)_bt2_rec;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
/* Sanity check */
assert(bt2_udata);
assert(bt2_rec);
/* Check hash value */
if (bt2_udata->name_hash < bt2_rec->hash)
*result = (-1);
else if (bt2_udata->name_hash > bt2_rec->hash)
*result = 1;
else {
H5G_fh_ud_cmp_t fh_udata; /* User data for fractal heap 'op' callback */
/* Sanity check */
assert(bt2_udata->name_hash == bt2_rec->hash);
/* Prepare user data for callback */
/* down */
fh_udata.f = bt2_udata->f;
fh_udata.name = bt2_udata->name;
fh_udata.found_op = bt2_udata->found_op;
fh_udata.found_op_data = bt2_udata->found_op_data;
/* up */
fh_udata.cmp = 0;
/* Check if the user's link and the B-tree's link have the same name */
if (H5HF_op(bt2_udata->fheap, bt2_rec->id, H5G__dense_fh_name_cmp, &fh_udata) < 0)
HGOTO_ERROR(H5E_HEAP, H5E_CANTCOMPARE, FAIL, "can't compare btree2 records")
/* Callback will set comparison value */
*result = fh_udata.cmp;
} /* end else */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* H5G__dense_btree2_name_compare() */
/*-------------------------------------------------------------------------
* Function: H5G__dense_btree2_name_encode
*
* Purpose: Encode native information into raw form for storing on disk
*
* Return: Success: non-negative
* Failure: negative
*
* Programmer: Quincey Koziol
* Monday, September 11, 2006
*
*-------------------------------------------------------------------------
*/
static herr_t
H5G__dense_btree2_name_encode(uint8_t *raw, const void *_nrecord, void H5_ATTR_UNUSED *ctx)
{
const H5G_dense_bt2_name_rec_t *nrecord = (const H5G_dense_bt2_name_rec_t *)_nrecord;
FUNC_ENTER_PACKAGE_NOERR
/* Encode the record's fields */
UINT32ENCODE(raw, nrecord->hash);
H5MM_memcpy(raw, nrecord->id, (size_t)H5G_DENSE_FHEAP_ID_LEN);
FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5G__dense_btree2_name_encode() */
/*-------------------------------------------------------------------------
* Function: H5G__dense_btree2_name_decode
*
* Purpose: Decode raw disk form of record into native form
*
* Return: Success: non-negative
* Failure: negative
*
* Programmer: Quincey Koziol
* Monday, September 11, 2006
*
*-------------------------------------------------------------------------
*/
static herr_t
H5G__dense_btree2_name_decode(const uint8_t *raw, void *_nrecord, void H5_ATTR_UNUSED *ctx)
{
H5G_dense_bt2_name_rec_t *nrecord = (H5G_dense_bt2_name_rec_t *)_nrecord;
FUNC_ENTER_PACKAGE_NOERR
/* Decode the record's fields */
UINT32DECODE(raw, nrecord->hash);
H5MM_memcpy(nrecord->id, raw, (size_t)H5G_DENSE_FHEAP_ID_LEN);
FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5G__dense_btree2_name_decode() */
/*-------------------------------------------------------------------------
* Function: H5G__dense_btree2_name_debug
*
* Purpose: Debug native form of record
*
* Return: Success: non-negative
* Failure: negative
*
* Programmer: Quincey Koziol
* Monday, September 11, 2006
*
*-------------------------------------------------------------------------
*/
static herr_t
H5G__dense_btree2_name_debug(FILE *stream, int indent, int fwidth, const void *_nrecord,
const void H5_ATTR_UNUSED *_udata)
{
const H5G_dense_bt2_name_rec_t *nrecord = (const H5G_dense_bt2_name_rec_t *)_nrecord;
unsigned u; /* Local index variable */
FUNC_ENTER_PACKAGE_NOERR
HDfprintf(stream, "%*s%-*s {%x, ", indent, "", fwidth, "Record:", (unsigned)nrecord->hash);
for (u = 0; u < H5G_DENSE_FHEAP_ID_LEN; u++)
HDfprintf(stderr, "%02x%s", nrecord->id[u], (u < (H5G_DENSE_FHEAP_ID_LEN - 1) ? " " : "}\n"));
FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5G__dense_btree2_name_debug() */
/*-------------------------------------------------------------------------
* Function: H5G__dense_btree2_corder_store
*
* Purpose: Store user information into native record for v2 B-tree
*
* Return: Success: non-negative
* Failure: negative
*
* Programmer: Quincey Koziol
* Monday, October 30, 2006
*
*-------------------------------------------------------------------------
*/
static herr_t
H5G__dense_btree2_corder_store(void *_nrecord, const void *_udata)
{
const H5G_bt2_ud_ins_t *udata = (const H5G_bt2_ud_ins_t *)_udata;
H5G_dense_bt2_corder_rec_t *nrecord = (H5G_dense_bt2_corder_rec_t *)_nrecord;
FUNC_ENTER_PACKAGE_NOERR
/* Copy user information info native record */
nrecord->corder = udata->common.corder;
H5MM_memcpy(nrecord->id, udata->id, (size_t)H5G_DENSE_FHEAP_ID_LEN);
FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5G__dense_btree2_corder_store() */
/*-------------------------------------------------------------------------
* Function: H5G__dense_btree2_corder_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, October 30, 2006
*
*-------------------------------------------------------------------------
*/
static herr_t
H5G__dense_btree2_corder_compare(const void *_bt2_udata, const void *_bt2_rec, int *result)
{
const H5G_bt2_ud_common_t *bt2_udata = (const H5G_bt2_ud_common_t *)_bt2_udata;
const H5G_dense_bt2_corder_rec_t *bt2_rec = (const H5G_dense_bt2_corder_rec_t *)_bt2_rec;
FUNC_ENTER_PACKAGE_NOERR
/* Sanity check */
assert(bt2_udata);
assert(bt2_rec);
/* Check creation order value */
if (bt2_udata->corder < bt2_rec->corder)
*result = -1;
else if (bt2_udata->corder > bt2_rec->corder)
*result = 1;
else
*result = 0;
FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5G__dense_btree2_corder_compare() */
/*-------------------------------------------------------------------------
* Function: H5G__dense_btree2_corder_encode
*
* Purpose: Encode native information into raw form for storing on disk
*
* Return: Success: non-negative
* Failure: negative
*
* Programmer: Quincey Koziol
* Monday, October 30, 2006
*
*-------------------------------------------------------------------------
*/
static herr_t
H5G__dense_btree2_corder_encode(uint8_t *raw, const void *_nrecord, void H5_ATTR_UNUSED *ctx)
{
const H5G_dense_bt2_corder_rec_t *nrecord = (const H5G_dense_bt2_corder_rec_t *)_nrecord;
FUNC_ENTER_PACKAGE_NOERR
/* Encode the record's fields */
INT64ENCODE(raw, nrecord->corder);
H5MM_memcpy(raw, nrecord->id, (size_t)H5G_DENSE_FHEAP_ID_LEN);
FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5G__dense_btree2_corder_encode() */
/*-------------------------------------------------------------------------
* Function: H5G__dense_btree2_corder_decode
*
* Purpose: Decode raw disk form of record into native form
*
* Return: Success: non-negative
* Failure: negative
*
* Programmer: Quincey Koziol
* Monday, October 30, 2006
*
*-------------------------------------------------------------------------
*/
static herr_t
H5G__dense_btree2_corder_decode(const uint8_t *raw, void *_nrecord, void H5_ATTR_UNUSED *ctx)
{
H5G_dense_bt2_corder_rec_t *nrecord = (H5G_dense_bt2_corder_rec_t *)_nrecord;
FUNC_ENTER_PACKAGE_NOERR
/* Decode the record's fields */
INT64DECODE(raw, nrecord->corder);
H5MM_memcpy(nrecord->id, raw, (size_t)H5G_DENSE_FHEAP_ID_LEN);
FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5G__dense_btree2_corder_decode() */
/*-------------------------------------------------------------------------
* Function: H5G__dense_btree2_corder_debug
*
* Purpose: Debug native form of record
*
* Return: Success: non-negative
* Failure: negative
*
* Programmer: Quincey Koziol
* Monday, October 30, 2006
*
*-------------------------------------------------------------------------
*/
static herr_t
H5G__dense_btree2_corder_debug(FILE *stream, int indent, int fwidth, const void *_nrecord,
const void H5_ATTR_UNUSED *_udata)
{
const H5G_dense_bt2_corder_rec_t *nrecord = (const H5G_dense_bt2_corder_rec_t *)_nrecord;
unsigned u; /* Local index variable */
FUNC_ENTER_PACKAGE_NOERR
HDfprintf(stream, "%*s%-*s {%llu, ", indent, "", fwidth, "Record:", (unsigned long long)nrecord->corder);
for (u = 0; u < H5G_DENSE_FHEAP_ID_LEN; u++)
HDfprintf(stderr, "%02x%s", nrecord->id[u], (u < (H5G_DENSE_FHEAP_ID_LEN - 1) ? " " : "}\n"));
FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5G__dense_btree2_corder_debug() */
|