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hdf5/src/H5EAiblock.c

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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 COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-------------------------------------------------------------------------
*
* Created: H5EAiblock.c
* Sep 9 2008
* Quincey Koziol <koziol@hdfgroup.org>
*
* Purpose: Index block routines for extensible arrays.
*
*-------------------------------------------------------------------------
*/
/**********************/
/* Module Declaration */
/**********************/
#include "H5EAmodule.h" /* This source code file is part of the 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 "H5VMprivate.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_iblock_t struct */
H5FL_DEFINE_STATIC(H5EA_iblock_t);
/* Declare a free list to manage the index block elements */
H5FL_BLK_DEFINE_STATIC(idx_blk_elmt_buf);
/* Declare a free list to manage the haddr_t sequence information */
H5FL_SEQ_DEFINE_STATIC(haddr_t);
/*-------------------------------------------------------------------------
* Function: H5EA__iblock_alloc
*
* Purpose: Allocate extensible array index block
*
* Return: Non-NULL pointer to index block on success/NULL on failure
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Sep 9 2008
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PKG, ERR,
H5EA_iblock_t *, NULL, NULL,
H5EA__iblock_alloc(H5EA_hdr_t *hdr))
/* Local variables */
H5EA_iblock_t *iblock = NULL; /* Extensible array index block */
/* Check arguments */
HDassert(hdr);
/* Allocate memory for the index block */
if(NULL == (iblock = H5FL_CALLOC(H5EA_iblock_t)))
H5E_THROW(H5E_CANTALLOC, "memory allocation failed for extensible array index block")
/* Share common array information */
if(H5EA__hdr_incr(hdr) < 0)
H5E_THROW(H5E_CANTINC, "can't increment reference count on shared array header")
iblock->hdr = hdr;
/* Set non-zero internal fields */
iblock->addr = HADDR_UNDEF;
/* Compute information */
iblock->nsblks = H5EA_SBLK_FIRST_IDX(hdr->cparam.sup_blk_min_data_ptrs);
iblock->ndblk_addrs = 2 * ((size_t)hdr->cparam.sup_blk_min_data_ptrs - 1);
iblock->nsblk_addrs = hdr->nsblks - iblock->nsblks;
#ifdef QAK
HDfprintf(stderr, "%s: iblock->nsblks = %u\n", FUNC, iblock->nsblks);
HDfprintf(stderr, "%s: iblock->ndblk_addrs = %Zu\n", FUNC, iblock->ndblk_addrs);
HDfprintf(stderr, "%s: iblock->nsblk_addrs = %Zu\n", FUNC, iblock->nsblk_addrs);
#endif /* QAK */
/* Allocate buffer for elements in index block */
if(hdr->cparam.idx_blk_elmts > 0)
if(NULL == (iblock->elmts = H5FL_BLK_MALLOC(idx_blk_elmt_buf, (size_t)(hdr->cparam.idx_blk_elmts * hdr->cparam.cls->nat_elmt_size))))
H5E_THROW(H5E_CANTALLOC, "memory allocation failed for index block data element buffer")
/* Allocate buffer for data block addresses in index block */
if(iblock->ndblk_addrs > 0)
if(NULL == (iblock->dblk_addrs = H5FL_SEQ_MALLOC(haddr_t, iblock->ndblk_addrs)))
H5E_THROW(H5E_CANTALLOC, "memory allocation failed for index block data block addresses")
/* Allocate buffer for super block addresses in index block */
if(iblock->nsblk_addrs > 0)
if(NULL == (iblock->sblk_addrs = H5FL_SEQ_MALLOC(haddr_t, iblock->nsblk_addrs)))
H5E_THROW(H5E_CANTALLOC, "memory allocation failed for index block super block addresses")
/* Set the return value */
ret_value = iblock;
CATCH
if(!ret_value)
if(iblock && H5EA__iblock_dest(iblock) < 0)
H5E_THROW(H5E_CANTFREE, "unable to destroy extensible array index block")
END_FUNC(PKG) /* end H5EA__iblock_alloc() */
/*-------------------------------------------------------------------------
* Function: H5EA__iblock_create
*
* Purpose: Creates a new extensible array index 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__iblock_create(H5EA_hdr_t *hdr, hbool_t *stats_changed))
/* Local variables */
H5EA_iblock_t *iblock = NULL; /* Extensible array index block */
haddr_t iblock_addr; /* Extensible array index block address */
hbool_t inserted = FALSE; /* Whether the header was inserted into cache */
#ifdef QAK
HDfprintf(stderr, "%s: Called\n", FUNC);
#endif /* QAK */
/* Sanity check */
HDassert(hdr);
HDassert(stats_changed);
/* Allocate the index block */
if(NULL == (iblock = H5EA__iblock_alloc(hdr)))
H5E_THROW(H5E_CANTALLOC, "memory allocation failed for extensible array index block")
/* Set size of index block on disk */
iblock->size = H5EA_IBLOCK_SIZE(iblock);
#ifdef QAK
HDfprintf(stderr, "%s: iblock->size = %Zu\n", FUNC, iblock->size);
#endif /* QAK */
/* Allocate space for the index block on disk */
if(HADDR_UNDEF == (iblock_addr = H5MF_alloc(hdr->f, H5FD_MEM_EARRAY_IBLOCK, (hsize_t)iblock->size)))
H5E_THROW(H5E_CANTALLOC, "file allocation failed for extensible array index block")
iblock->addr = iblock_addr;
/* Clear any elements in index block to fill value */
if(hdr->cparam.idx_blk_elmts > 0) {
/* Call the class's 'fill' callback */
if((hdr->cparam.cls->fill)(iblock->elmts, (size_t)hdr->cparam.idx_blk_elmts) < 0)
H5E_THROW(H5E_CANTSET, "can't set extensible array index block elements to class's fill value")
} /* end if */
/* Reset any data block addresses in the index block */
if(iblock->ndblk_addrs > 0) {
haddr_t tmp_addr = HADDR_UNDEF; /* Address value to fill data block addresses with */
/* Set all the data block addresses to "undefined" address value */
H5VM_array_fill(iblock->dblk_addrs, &tmp_addr, sizeof(haddr_t), iblock->ndblk_addrs);
} /* end if */
/* Reset any super block addresses in the index block */
if(iblock->nsblk_addrs > 0) {
haddr_t tmp_addr = HADDR_UNDEF; /* Address value to fill super block addresses with */
/* Set all the super block addresses to "undefined" address value */
H5VM_array_fill(iblock->sblk_addrs, &tmp_addr, sizeof(haddr_t), iblock->nsblk_addrs);
} /* end if */
/* Cache the new extensible array index block */
if(H5AC_insert_entry(hdr->f, H5AC_EARRAY_IBLOCK, iblock_addr, iblock, H5AC__NO_FLAGS_SET) < 0)
H5E_THROW(H5E_CANTINSERT, "can't add extensible array index block to cache")
inserted = TRUE;
/* Add index block as child of 'top' proxy */
if(hdr->top_proxy) {
if(H5AC_proxy_entry_add_child(hdr->top_proxy, hdr->f, iblock) < 0)
H5E_THROW(H5E_CANTSET, "unable to add extensible array entry as child of array proxy")
iblock->top_proxy = hdr->top_proxy;
} /* end if */
/* Update extensible array index block statistics */
HDassert(0 == hdr->stats.computed.nindex_blks);
HDassert(0 == hdr->stats.computed.index_blk_size);
hdr->stats.computed.nindex_blks = 1;
hdr->stats.computed.index_blk_size = iblock->size;
/* Increment count of elements "realized" */
hdr->stats.stored.nelmts += hdr->cparam.idx_blk_elmts;
/* Mark the statistics as changed */
*stats_changed = TRUE;
/* Set address of index block to return */
ret_value = iblock_addr;
CATCH
if(!H5F_addr_defined(ret_value))
if(iblock) {
/* Remove from cache, if inserted */
if(inserted)
if(H5AC_remove_entry(iblock) < 0)
H5E_THROW(H5E_CANTREMOVE, "unable to remove extensible array index block from cache")
/* Release index block's disk space */
if(H5F_addr_defined(iblock->addr) && H5MF_xfree(hdr->f, H5FD_MEM_EARRAY_IBLOCK, iblock->addr, (hsize_t)iblock->size) < 0)
H5E_THROW(H5E_CANTFREE, "unable to release file space for extensible array index block")
/* Destroy index block */
if(H5EA__iblock_dest(iblock) < 0)
H5E_THROW(H5E_CANTFREE, "unable to destroy extensible array index block")
} /* end if */
END_FUNC(PKG) /* end H5EA__iblock_create() */
/*-------------------------------------------------------------------------
* Function: H5EA__iblock_protect
*
* Purpose: Convenience wrapper around protecting extensible array index block
*
* Return: Non-NULL pointer to index block on success/NULL on failure
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Sep 9 2008
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PKG, ERR,
H5EA_iblock_t *, NULL, NULL,
H5EA__iblock_protect(H5EA_hdr_t *hdr, unsigned flags))
/* Local variables */
H5EA_iblock_t *iblock = NULL; /* Pointer to index block */
#ifdef QAK
HDfprintf(stderr, "%s: Called\n", FUNC);
#endif /* QAK */
/* Sanity check */
HDassert(hdr);
/* only the H5AC__READ_ONLY_FLAG may be set */
HDassert((flags & (unsigned)(~H5AC__READ_ONLY_FLAG)) == 0);
/* Protect the index block */
if(NULL == (iblock = (H5EA_iblock_t *)H5AC_protect(hdr->f, H5AC_EARRAY_IBLOCK, hdr->idx_blk_addr, hdr, flags)))
H5E_THROW(H5E_CANTPROTECT, "unable to protect extensible array index block, address = %llu", (unsigned long long)hdr->idx_blk_addr)
/* Create top proxy, if it doesn't exist */
if(hdr->top_proxy && NULL == iblock->top_proxy) {
/* Add index block as child of 'top' proxy */
if(H5AC_proxy_entry_add_child(hdr->top_proxy, hdr->f, iblock) < 0)
H5E_THROW(H5E_CANTSET, "unable to add extensible array entry as child of array proxy")
iblock->top_proxy = hdr->top_proxy;
} /* end if */
/* Set return value */
ret_value = iblock;
CATCH
/* Clean up on error */
if(!ret_value) {
/* Release the index block, if it was protected */
if(iblock && H5AC_unprotect(hdr->f, H5AC_EARRAY_IBLOCK, iblock->addr, iblock, H5AC__NO_FLAGS_SET) < 0)
H5E_THROW(H5E_CANTUNPROTECT, "unable to unprotect extensible array index block, address = %llu", (unsigned long long)iblock->addr)
} /* end if */
END_FUNC(PKG) /* end H5EA__iblock_protect() */
/*-------------------------------------------------------------------------
* Function: H5EA__iblock_unprotect
*
* Purpose: Convenience wrapper around unprotecting extensible array index block
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Sep 9 2008
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PKG, ERR,
herr_t, SUCCEED, FAIL,
H5EA__iblock_unprotect(H5EA_iblock_t *iblock, unsigned cache_flags))
/* Local variables */
#ifdef QAK
HDfprintf(stderr, "%s: Called\n", FUNC);
#endif /* QAK */
/* Sanity check */
HDassert(iblock);
/* Unprotect the index block */
if(H5AC_unprotect(iblock->hdr->f, H5AC_EARRAY_IBLOCK, iblock->addr, iblock, cache_flags) < 0)
H5E_THROW(H5E_CANTUNPROTECT, "unable to unprotect extensible array index block, address = %llu", (unsigned long long)iblock->addr)
CATCH
END_FUNC(PKG) /* end H5EA__iblock_unprotect() */
/*-------------------------------------------------------------------------
* Function: H5EA__iblock_delete
*
* Purpose: Delete index block
*
* Return: SUCCEED/FAIL
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Sep 9 2008
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PKG, ERR,
herr_t, SUCCEED, FAIL,
H5EA__iblock_delete(H5EA_hdr_t *hdr))
/* Local variables */
H5EA_iblock_t *iblock = NULL; /* Pointer to index block */
#ifdef QAK
HDfprintf(stderr, "%s: Called\n", FUNC);
#endif /* QAK */
/* Sanity check */
HDassert(hdr);
HDassert(H5F_addr_defined(hdr->idx_blk_addr));
/* Protect index block */
if(NULL == (iblock = H5EA__iblock_protect(hdr, H5AC__NO_FLAGS_SET)))
H5E_THROW(H5E_CANTPROTECT, "unable to protect extensible array index block, address = %llu", (unsigned long long)hdr->idx_blk_addr)
/* Check for index block having data block pointers */
if(iblock->ndblk_addrs > 0) {
unsigned sblk_idx; /* Current super block index */
unsigned dblk_idx; /* Current data block index w/in super block */
size_t u; /* Local index variable */
/* Iterate over data blocks */
sblk_idx = dblk_idx = 0;
for(u = 0; u < iblock->ndblk_addrs; u++) {
/* Check for data block existing */
if(H5F_addr_defined(iblock->dblk_addrs[u])) {
/* Delete data block */
if(H5EA__dblock_delete(hdr, iblock, iblock->dblk_addrs[u], hdr->sblk_info[sblk_idx].dblk_nelmts) < 0)
H5E_THROW(H5E_CANTDELETE, "unable to delete extensible array data block")
iblock->dblk_addrs[u] = HADDR_UNDEF;
} /* end if */
/* Advance to next data block w/in super block */
dblk_idx++;
/* Check for moving to next super block */
if(dblk_idx >= hdr->sblk_info[sblk_idx].ndblks) {
sblk_idx++;
dblk_idx = 0;
} /* end if */
} /* end for */
} /* end if */
/* Check for index block having data block pointers (not yet) */
if(iblock->nsblk_addrs > 0) {
size_t u; /* Local index variable */
/* Iterate over super blocks */
for(u = 0; u < iblock->nsblk_addrs; u++) {
/* Check for data block existing */
if(H5F_addr_defined(iblock->sblk_addrs[u])) {
/* Delete super block */
if(H5EA__sblock_delete(hdr, iblock, iblock->sblk_addrs[u], (unsigned)(u + iblock->nsblks)) < 0)
H5E_THROW(H5E_CANTDELETE, "unable to delete extensible array super block")
iblock->sblk_addrs[u] = HADDR_UNDEF;
} /* end if */
} /* end for */
} /* end if */
CATCH
/* Finished deleting index block in metadata cache */
if(iblock && H5EA__iblock_unprotect(iblock, H5AC__DIRTIED_FLAG | H5AC__DELETED_FLAG | H5AC__FREE_FILE_SPACE_FLAG) < 0)
H5E_THROW(H5E_CANTUNPROTECT, "unable to release extensible array index block")
END_FUNC(PKG) /* end H5EA__iblock_delete() */
/*-------------------------------------------------------------------------
* Function: H5EA__iblock_dest
*
* Purpose: Destroys an extensible array index block in memory.
*
* 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__iblock_dest(H5EA_iblock_t *iblock))
/* Sanity check */
HDassert(iblock);
/* Check if shared header field has been initialized */
if(iblock->hdr) {
/* Check if we've got elements in the index block */
if(iblock->elmts) {
/* Free buffer for index block elements */
HDassert(iblock->hdr->cparam.idx_blk_elmts > 0);
iblock->elmts = H5FL_BLK_FREE(idx_blk_elmt_buf, iblock->elmts);
} /* end if */
/* Check if we've got data block addresses in the index block */
if(iblock->dblk_addrs) {
/* Free buffer for index block data block addresses */
HDassert(iblock->ndblk_addrs > 0);
iblock->dblk_addrs = H5FL_SEQ_FREE(haddr_t, iblock->dblk_addrs);
iblock->ndblk_addrs = 0;
} /* end if */
/* Check if we've got super block addresses in the index block */
if(iblock->sblk_addrs) {
/* Free buffer for index block super block addresses */
HDassert(iblock->nsblk_addrs > 0);
iblock->sblk_addrs = H5FL_SEQ_FREE(haddr_t, iblock->sblk_addrs);
iblock->nsblk_addrs = 0;
} /* end if */
/* Decrement reference count on shared info */
if(H5EA__hdr_decr(iblock->hdr) < 0)
H5E_THROW(H5E_CANTDEC, "can't decrement reference count on shared array header")
iblock->hdr = NULL;
} /* end if */
/* Sanity check */
HDassert(NULL == iblock->top_proxy);
/* Free the index block itself */
iblock = H5FL_FREE(H5EA_iblock_t, iblock);
CATCH
END_FUNC(PKG) /* end H5EA__iblock_dest() */
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