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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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: H5EAdblock.c
* Sep 11 2008
* Quincey Koziol <koziol@hdfgroup.org>
*
* Purpose: Data block routines for extensible arrays.
*
*-------------------------------------------------------------------------
*/
/**********************/
/* Module Declaration */
/**********************/
#define H5EA_MODULE
/***********************/
/* Other Packages Used */
/***********************/
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5EApkg.h" /* Extensible Arrays */
#include "H5FLprivate.h" /* Free Lists */
#include "H5MFprivate.h" /* File memory management */
#include "H5Vprivate.h" /* Vectors and arrays */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Package Typedefs */
/********************/
/********************/
/* Local Prototypes */
/********************/
/*********************/
/* Package Variables */
/*********************/
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/* Declare a free list to manage the H5EA_dblock_t struct */
H5FL_DEFINE_STATIC(H5EA_dblock_t);
/*-------------------------------------------------------------------------
* Function: H5EA__dblock_alloc
*
* Purpose: Allocate extensible array data block
*
* Return: Non-NULL pointer to data block on success/NULL on failure
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Sep 11 2008
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PKG, ERR,
H5EA_dblock_t *, NULL, NULL,
H5EA__dblock_alloc(H5EA_hdr_t *hdr, size_t nelmts))
/* Local variables */
H5EA_dblock_t *dblock = NULL; /* Extensible array index block */
/* Check arguments */
HDassert(hdr);
HDassert(nelmts > 0);
/* Allocate memory for the data block */
if(NULL == (dblock = H5FL_CALLOC(H5EA_dblock_t)))
H5E_THROW(H5E_CANTALLOC, "memory allocation failed for extensible array data block")
/* Set non-zero internal fields */
dblock->nelmts = nelmts;
/* Allocate buffer for elements in index block */
if(NULL == (dblock->elmts = H5EA__hdr_alloc_elmts(hdr, nelmts)))
H5E_THROW(H5E_CANTALLOC, "memory allocation failed for data block element buffer")
/* Share common array information */
dblock->hdr = hdr;
if(H5EA__hdr_incr(hdr) < 0)
H5E_THROW(H5E_CANTINC, "can't increment reference count on shared array header")
/* Set the return value */
ret_value = dblock;
CATCH
if(!ret_value)
if(dblock && H5EA__dblock_dest(hdr->f, dblock) < 0)
H5E_THROW(H5E_CANTFREE, "unable to destroy extensible array data block")
END_FUNC(PKG) /* end H5EA__dblock_alloc() */
/*-------------------------------------------------------------------------
* Function: H5EA__dblock_create
*
* Purpose: Creates a new extensible array data block in the file
*
* Return: Valid file address on success/HADDR_UNDEF on failure
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Sep 9 2008
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PKG, ERR,
haddr_t, HADDR_UNDEF, HADDR_UNDEF,
H5EA__dblock_create(H5EA_iblock_t *iblock, hid_t dxpl_id, size_t nelmts))
/* Local variables */
H5EA_dblock_t *dblock = NULL; /* Extensible array data block */
#ifdef QAK
HDfprintf(stderr, "%s: Called\n", FUNC);
#endif /* QAK */
/* Sanity check */
HDassert(iblock);
HDassert(nelmts > 0);
/* Allocate the data block */
if(NULL == (dblock = H5EA__dblock_alloc(iblock->hdr, nelmts)))
H5E_THROW(H5E_CANTALLOC, "memory allocation failed for extensible array data block")
/* Set size of data block on disk */
dblock->size = H5EA_DBLOCK_SIZE(dblock);
#ifdef QAK
HDfprintf(stderr, "%s: dblock->size = %Zu\n", FUNC, dblock->size);
#endif /* QAK */
/* Allocate space for the data block on disk */
if(HADDR_UNDEF == (dblock->addr = H5MF_alloc(iblock->hdr->f, H5FD_MEM_EARRAY_DBLOCK, dxpl_id, dblock->size)))
H5E_THROW(H5E_CANTALLOC, "file allocation failed for extensible array data block")
/* Clear any elements in index block to fill value */
if((iblock->hdr->cls->fill)(dblock->elmts, (size_t)dblock->nelmts) < 0)
H5E_THROW(H5E_CANTSET, "can't set extensible array data block elements to class's fill value")
/* Cache the new extensible array data block */
if(H5AC_set(iblock->hdr->f, dxpl_id, H5AC_EARRAY_DBLOCK, dblock->addr, dblock, H5AC__NO_FLAGS_SET) < 0)
H5E_THROW(H5E_CANTINSERT, "can't add extensible array index block to cache")
/* Set address of index block to return */
ret_value = dblock->addr;
CATCH
if(!H5F_addr_defined(ret_value))
if(dblock) {
/* Release data block's disk space */
if(H5F_addr_defined(dblock->addr) && H5MF_xfree(iblock->hdr->f, H5FD_MEM_EARRAY_DBLOCK, dxpl_id, dblock->addr, (hsize_t)dblock->size) < 0)
H5E_THROW(H5E_CANTFREE, "unable to release extensible array data block")
/* Destroy data block */
if(H5EA__dblock_dest(iblock->hdr->f, dblock) < 0)
H5E_THROW(H5E_CANTFREE, "unable to destroy extensible array data block")
} /* end if */
END_FUNC(PKG) /* end H5EA__dblock_create() */
/*-------------------------------------------------------------------------
* Function: H5EA__dblock_sblk_idx
*
* Purpose: Compute the index of the super block where the element is
* located.
*
* Return: Super block index on success/Can't fail
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Sep 11 2008
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PKG, NOERR,
unsigned, 0, -,
H5EA__dblock_sblk_idx(const H5EA_hdr_t *hdr, hsize_t idx))
/* Local variables */
unsigned sblk_idx; /* Which superblock does this index fall in? */
/* Sanity check */
HDassert(hdr);
HDassert(idx >= hdr->idx_blk_elmts);
#ifdef QAK
HDfprintf(stderr, "%s: Entering - idx = %Hu\n", FUNC, idx);
#endif /* QAK */
/* Adjust index for elements in index block */
idx -= hdr->idx_blk_elmts;
#ifdef QAK
HDfprintf(stderr, "%s: after adjusting for index block elements, idx = %Hu\n", FUNC, idx);
#endif /* QAK */
/* Determine the superblock information for the index */
H5_CHECK_OVERFLOW(idx, /*From:*/hsize_t, /*To:*/uint64_t);
#ifdef QAK
HDfprintf(stderr, "%s: hdr->data_blk_min_elmts = %u\n", FUNC, (unsigned)hdr->data_blk_min_elmts);
#endif /* QAK */
sblk_idx = H5V_log2_gen((uint64_t)((idx / hdr->data_blk_min_elmts) + 1));
#ifdef QAK
HDfprintf(stderr, "%s: sblk_idx = %u\n", FUNC, sblk_idx);
HDfprintf(stderr, "%s: hdr->sblk_info[%u] = {%Hu, %Zu, %Hu, %Hu}\n", FUNC, sblk_idx, hdr->sblk_info[sblk_idx].ndblks, hdr->sblk_info[sblk_idx].dblk_nelmts, hdr->sblk_info[sblk_idx].start_idx, hdr->sblk_info[sblk_idx].start_dblk);
#endif /* QAK */
/* Set return value */
ret_value = sblk_idx;
END_FUNC(PKG) /* end H5EA__dblock_sblk_idx() */
/*-------------------------------------------------------------------------
* Function: H5EA__dblock_protect
*
* Purpose: Convenience wrapper around protecting extensible array data block
*
* Return: Non-NULL pointer to data block on success/NULL on failure
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Sep 18 2008
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PKG, ERR,
H5EA_dblock_t *, NULL, NULL,
H5EA__dblock_protect(H5EA_hdr_t *hdr, hid_t dxpl_id, haddr_t dblk_addr,
size_t dblk_nelmts, H5AC_protect_t rw))
/* Local variables */
#ifdef QAK
HDfprintf(stderr, "%s: Called\n", FUNC);
#endif /* QAK */
/* Sanity check */
HDassert(hdr);
HDassert(H5F_addr_defined(dblk_addr));
HDassert(dblk_nelmts);
/* Protect the data block */
if(NULL == (ret_value = (H5EA_dblock_t *)H5AC_protect(hdr->f, dxpl_id, H5AC_EARRAY_DBLOCK, dblk_addr, &dblk_nelmts, hdr, rw)))
H5E_THROW(H5E_CANTPROTECT, "unable to protect extensible array data block, address = %llu", (unsigned long_long)dblk_addr)
CATCH
END_FUNC(PKG) /* end H5EA__dblock_protect() */
/*-------------------------------------------------------------------------
* Function: H5EA__dblock_unprotect
*
* Purpose: Convenience wrapper around unprotecting extensible array data block
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Sep 11 2008
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PKG, ERR,
herr_t, SUCCEED, FAIL,
H5EA__dblock_unprotect(H5EA_dblock_t *dblock, hid_t dxpl_id, unsigned cache_flags))
/* Local variables */
#ifdef QAK
HDfprintf(stderr, "%s: Called\n", FUNC);
#endif /* QAK */
/* Sanity check */
HDassert(dblock);
/* Unprotect the data block */
if(H5AC_unprotect(dblock->hdr->f, dxpl_id, H5AC_EARRAY_DBLOCK, dblock->addr, dblock, cache_flags) < 0)
H5E_THROW(H5E_CANTUNPROTECT, "unable to unprotect extensible array data block, address = %llu", (unsigned long_long)dblock->addr)
CATCH
END_FUNC(PKG) /* end H5EA__dblock_unprotect() */
/*-------------------------------------------------------------------------
* Function: H5EA__dblock_delete
*
* Purpose: Delete a data block
*
* Return: SUCCEED/FAIL
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Sep 22 2008
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PKG, ERR,
herr_t, SUCCEED, FAIL,
H5EA__dblock_delete(H5EA_hdr_t *hdr, hid_t dxpl_id, haddr_t dblk_addr,
size_t dblk_nelmts))
/* Local variables */
H5EA_dblock_t *dblock = NULL; /* Pointer to data block */
#ifdef QAK
HDfprintf(stderr, "%s: Called\n", FUNC);
#endif /* QAK */
/* Sanity check */
HDassert(hdr);
HDassert(H5F_addr_defined(dblk_addr));
HDassert(dblk_nelmts > 0);
/* Protect data block */
if(NULL == (dblock = H5EA__dblock_protect(hdr, dxpl_id, dblk_addr, dblk_nelmts, H5AC_WRITE)))
H5E_THROW(H5E_CANTPROTECT, "unable to protect extensible array data block, address = %llu", (unsigned long_long)dblk_addr)
/* Release data block's disk space */
if(H5MF_xfree(hdr->f, H5FD_MEM_EARRAY_DBLOCK, dxpl_id, dblk_addr, (hsize_t)dblock->size) < 0)
H5E_THROW(H5E_CANTFREE, "unable to free extensible array data block")
CATCH
/* Finished deleting data block in metadata cache */
if(dblock && H5EA__dblock_unprotect(dblock, dxpl_id, H5AC__DIRTIED_FLAG | H5AC__DELETED_FLAG) < 0)
H5E_THROW(H5E_CANTUNPROTECT, "unable to release extensible array data block")
END_FUNC(PKG) /* end H5EA__dblock_delete() */
/*-------------------------------------------------------------------------
* Function: H5EA__dblock_dest
*
* Purpose: Destroys an extensible array data block in memory.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Sep 11 2008
*
*-------------------------------------------------------------------------
*/
/* ARGSUSED */
BEGIN_FUNC(PKG, ERR,
herr_t, SUCCEED, FAIL,
H5EA__dblock_dest(H5F_t UNUSED *f, H5EA_dblock_t *dblock))
/* Sanity check */
HDassert(dblock);
HDassert(dblock->hdr);
/* Check if we've got elements in the index block */
if(dblock->nelmts > 0) {
/* Free buffer for data block elements */
HDassert(dblock->elmts);
if(H5EA__hdr_free_elmts(dblock->hdr, dblock->nelmts, dblock->elmts) < 0)
H5E_THROW(H5E_CANTFREE, "unable to free extensible array data block element buffer")
dblock->elmts = NULL;
} /* end if */
/* Decrement reference count on shared info */
if(H5EA__hdr_decr(dblock->hdr) < 0)
H5E_THROW(H5E_CANTDEC, "can't decrement reference count on shared array header")
/* Free the data block itself */
(void)H5FL_FREE(H5EA_dblock_t, dblock);
CATCH
END_FUNC(PKG) /* end H5EA__dblock_dest() */
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