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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: H5FA.c
* April 2009
* Vailin Choi <vchoi@hdfgroup.org>
*
* Purpose: Implements a Fixed Array for storing elements
* of datasets with fixed dimensions
*
*-------------------------------------------------------------------------
*/
/**********************/
/* Module Declaration */
/**********************/
#define H5FA_MODULE
/***********************/
/* Other Packages Used */
/***********************/
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5FApkg.h" /* Fixed Arrays */
#include "H5FLprivate.h" /* Free Lists */
#include "H5Vprivate.h" /* Vector functions */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Package Typedefs */
/********************/
/********************/
/* Local Prototypes */
/********************/
/*********************/
/* Package Variables */
/*********************/
/* Fixed array client ID to class mapping */
/* Remember to add client ID to H5FA_cls_id_t in H5FAprivate.h when adding a new
* client class..
*/
const H5FA_class_t *const H5FA_client_class_g[] = {
H5FA_CLS_CHUNK, /* 0 - H5FA_CLS_CHUNK_ID */
H5FA_CLS_FILT_CHUNK, /* 1 - H5FA_CLS_FILT_CHUNK_ID */
H5FA_CLS_TEST, /* ? - H5FA_CLS_TEST_ID */
};
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/* Declare a free list to manage the H5FA_t struct */
H5FL_DEFINE_STATIC(H5FA_t);
/* Declare a PQ free list to manage the element */
H5FL_BLK_DEFINE(native_elmt);
/*-------------------------------------------------------------------------
* Function: H5FA_create
*
* Purpose: Creates a new fixed array (header) in the file.
*
* Return: Pointer to fixed array wrapper on success
* NULL on failure
*
* Programmer: Vailin Choi
* Thursday, April 30, 2009
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PRIV, ERR,
H5FA_t *, NULL, NULL,
H5FA_create(H5F_t *f, hid_t dxpl_id, const H5FA_create_t *cparam, void *ctx_udata))
/* Local variables */
H5FA_t *fa = NULL; /* Pointer to new fixed array */
H5FA_hdr_t *hdr = NULL; /* The fixed array header information */
haddr_t fa_addr; /* Fixed Array header address */
#ifdef H5FA_DEBUG
HDfprintf(stderr, "%s: Called\n", FUNC);
#endif /* H5FA_DEBUG */
/*
* Check arguments.
*/
HDassert(f);
HDassert(cparam);
/* H5FA interface sanity check */
HDcompile_assert(H5FA_NUM_CLS_ID == NELMTS(H5FA_client_class_g));
/* Create fixed array header */
if(HADDR_UNDEF == (fa_addr = H5FA__hdr_create(f, dxpl_id, cparam, ctx_udata)))
H5E_THROW(H5E_CANTINIT, "can't create fixed array header")
/* Allocate fixed array wrapper */
if(NULL == (fa = H5FL_MALLOC(H5FA_t)))
H5E_THROW(H5E_CANTALLOC, "memory allocation failed for fixed array info")
/* Lock the array header into memory */
if(NULL == (hdr = (H5FA_hdr_t *)H5AC_protect(f, dxpl_id, H5AC_FARRAY_HDR, fa_addr, NULL, ctx_udata, H5AC_WRITE)))
H5E_THROW(H5E_CANTPROTECT, "unable to load fixed array header")
/* Point fixed array wrapper at header and bump it's ref count */
fa->hdr = hdr;
if(H5FA__hdr_incr(fa->hdr) < 0)
H5E_THROW(H5E_CANTINC, "can't increment reference count on shared array header")
/* Increment # of files using this array header */
if(H5FA__hdr_fuse_incr(fa->hdr) < 0)
H5E_THROW(H5E_CANTINC, "can't increment file reference count on shared array header")
/* Set file pointer for this array open context */
fa->f = f;
/* Set the return value */
ret_value = fa;
CATCH
if(hdr && H5AC_unprotect(f, dxpl_id, H5AC_FARRAY_HDR, fa_addr, hdr, H5AC__NO_FLAGS_SET) < 0)
H5E_THROW(H5E_CANTUNPROTECT, "unable to release fixed array header")
if(!ret_value)
if(fa && H5FA_close(fa, dxpl_id) < 0)
H5E_THROW(H5E_CLOSEERROR, "unable to close fixed array")
END_FUNC(PRIV) /* end H5FA_create() */
/*-------------------------------------------------------------------------
* Function: H5FA_open
*
* Purpose: Opens an existing fixed array in the file.
*
* Return: Pointer to array wrapper on success
* NULL on failure
*
* Programmer: Vailin Choi
* Thursday, April 30, 2009
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PRIV, ERR,
H5FA_t *, NULL, NULL,
H5FA_open(H5F_t *f, hid_t dxpl_id, haddr_t fa_addr, void *ctx_udata))
/* Local variables */
H5FA_t *fa = NULL; /* Pointer to new fixed array wrapper */
H5FA_hdr_t *hdr = NULL; /* The fixed array header information */
/*
* Check arguments.
*/
HDassert(f);
HDassert(H5F_addr_defined(fa_addr));
/* Load the array header into memory */
#ifdef H5FA_DEBUG
HDfprintf(stderr, "%s: fa_addr = %a\n", FUNC, fa_addr);
#endif /* H5FA_DEBUG */
if(NULL == (hdr = (H5FA_hdr_t *)H5AC_protect(f, dxpl_id, H5AC_FARRAY_HDR, fa_addr, NULL, ctx_udata, H5AC_READ)))
H5E_THROW(H5E_CANTPROTECT, "unable to load fixed array header, address = %llu", (unsigned long long)fa_addr)
/* Check for pending array deletion */
if(hdr->pending_delete)
H5E_THROW(H5E_CANTOPENOBJ, "can't open fixed array pending deletion")
/* Create fixed array info */
if(NULL == (fa = H5FL_MALLOC(H5FA_t)))
H5E_THROW(H5E_CANTALLOC, "memory allocation failed for fixed array info")
/* Point fixed array wrapper at header */
fa->hdr = hdr;
if(H5FA__hdr_incr(fa->hdr) < 0)
H5E_THROW(H5E_CANTINC, "can't increment reference count on shared array header")
/* Increment # of files using this array header */
if(H5FA__hdr_fuse_incr(fa->hdr) < 0)
H5E_THROW(H5E_CANTINC, "can't increment file reference count on shared array header")
/* Set file pointer for this array open context */
fa->f = f;
/* Set the return value */
ret_value = fa;
CATCH
if(hdr && H5AC_unprotect(f, dxpl_id, H5AC_FARRAY_HDR, fa_addr, hdr, H5AC__NO_FLAGS_SET) < 0)
H5E_THROW(H5E_CANTUNPROTECT, "unable to release fixed array header")
if(!ret_value)
if(fa && H5FA_close(fa, dxpl_id) < 0)
H5E_THROW(H5E_CLOSEERROR, "unable to close fixed array")
END_FUNC(PRIV) /* end H5FA_open() */
/*-------------------------------------------------------------------------
* Function: H5FA_get_nelmts
*
* Purpose: Query the current number of elements in array
*
* Return: SUCCEED/FAIL
*
* Programmer: Vailin Choi
* Thursday, April 30, 2009
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PRIV, NOERR,
herr_t, SUCCEED, -,
H5FA_get_nelmts(const H5FA_t *fa, hsize_t *nelmts))
/* Local variables */
#ifdef H5FA_DEBUG
HDfprintf(stderr, "%s: Called\n", FUNC);
#endif /* H5FA_DEBUG */
/*
* Check arguments.
*/
HDassert(fa);
HDassert(nelmts);
/* Retrieve the current number of elements in the fixed array */
*nelmts = fa->hdr->stats.nelmts;
END_FUNC(PRIV) /* end H5FA_get_nelmts() */
/*-------------------------------------------------------------------------
* Function: H5FA_get_addr
*
* Purpose: Query the address of the array
*
* Return: SUCCEED/FAIL
*
* Programmer: Vailin Choi
* Thursday, April 30, 2009
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PRIV, NOERR,
herr_t, SUCCEED, -,
H5FA_get_addr(const H5FA_t *fa, haddr_t *addr))
/* Local variables */
#ifdef H5FA_DEBUG
HDfprintf(stderr, "%s: Called\n", FUNC);
#endif /* H5FA_DEBUG */
/*
* Check arguments.
*/
HDassert(fa);
HDassert(fa->hdr);
HDassert(addr);
/* Retrieve the address of the fixed array's header */
*addr = fa->hdr->addr;
END_FUNC(PRIV) /* end H5FA_get_addr() */
/*-------------------------------------------------------------------------
* Function: H5FA_set
*
* Purpose: Set an element of a fixed array
*
* Return: SUCCEED/FAIL
*
* Programmer: Vailin Choi
* Thursday, April 30, 2009
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PRIV, ERR,
herr_t, SUCCEED, FAIL,
H5FA_set(const H5FA_t *fa, hid_t dxpl_id, hsize_t idx, const void *elmt))
/* Local variables */
H5FA_hdr_t *hdr = fa->hdr; /* Header for fixed array */
H5FA_dblock_t *dblock = NULL; /* Pointer to fixed array Data block */
H5FA_dblk_page_t *dblk_page = NULL; /* Pointer to fixed array Data block page */
unsigned dblock_cache_flags = H5AC__NO_FLAGS_SET; /* Flags to unprotecting fixed array Data block */
unsigned dblk_page_cache_flags = H5AC__NO_FLAGS_SET; /* Flags to unprotecting FIxed Array Data block page */
hbool_t hdr_dirty = FALSE; /* Whether header information changed */
#ifdef H5FA_DEBUG
HDfprintf(stderr, "%s: Called\n", FUNC);
HDfprintf(stderr, "%s: Index %Hu\n", FUNC, idx);
#endif /* H5FA_DEBUG */
/*
* Check arguments.
*/
HDassert(fa);
HDassert(fa->hdr);
/* Set the shared array header's file context for this operation */
hdr->f = fa->f;
/* Check if we need to create the fixed array data block */
if(!H5F_addr_defined(hdr->dblk_addr)) {
#ifdef H5FA_DEBUG
HDfprintf(stderr, "%s: fixed array data block address not defined!\n", FUNC, idx);
#endif /* H5FA_DEBUG */
/* Create the data block */
hdr->dblk_addr = H5FA__dblock_create(hdr, dxpl_id, &hdr_dirty, hdr->cparam.nelmts);
if(!H5F_addr_defined(hdr->dblk_addr))
H5E_THROW(H5E_CANTCREATE, "unable to create fixed array data block")
} /* end if */
HDassert(idx < hdr->cparam.nelmts);
/* Protect data block */
if(NULL == (dblock = H5FA__dblock_protect(hdr, dxpl_id, hdr->dblk_addr, hdr->stats.nelmts, H5AC_WRITE)))
H5E_THROW(H5E_CANTPROTECT, "unable to protect fixed array data block, address = %llu", (unsigned long long)hdr->dblk_addr)
/* Check for paging data block */
if(!dblock->npages) {
/* Set element in data block */
HDmemcpy(((uint8_t *)dblock->elmts) + (hdr->cparam.cls->nat_elmt_size * idx), elmt, hdr->cparam.cls->nat_elmt_size);
dblock_cache_flags |= H5AC__DIRTIED_FLAG;
} /* end if */
else { /* paging */
size_t page_idx; /* Index of page within data block */
size_t dblk_page_nelmts; /* # of elements in a data block page */
size_t elmt_idx; /* Element index within the page */
haddr_t dblk_page_addr; /* Address of data block page */
/* Compute the page & element index */
page_idx = (size_t)(idx / dblock->dblk_page_nelmts);
elmt_idx = (size_t)(idx % dblock->dblk_page_nelmts);
/* Get the address of the data block page */
dblk_page_addr = dblock->addr + H5FA_DBLOCK_PREFIX_SIZE(dblock) +
((hsize_t)page_idx * dblock->dblk_page_size);
/* Check for using last page, to set the number of elements on the page */
if((page_idx + 1) == dblock->npages)
dblk_page_nelmts = dblock->last_page_nelmts;
else
dblk_page_nelmts = dblock->dblk_page_nelmts;
/* Check if the page has been created yet */
if(!H5V_bit_get(dblock->dblk_page_init, page_idx)) {
/* Create the data block page */
if(H5FA__dblk_page_create(hdr, dxpl_id, dblk_page_addr, dblk_page_nelmts) < 0)
H5E_THROW(H5E_CANTCREATE, "unable to create data block page")
/* Mark data block page as initialized in data block */
H5V_bit_set(dblock->dblk_page_init, page_idx, TRUE);
dblock_cache_flags |= H5AC__DIRTIED_FLAG;
} /* end if */
/* Protect the data block page */
if(NULL == (dblk_page = H5FA__dblk_page_protect(hdr, dxpl_id, dblk_page_addr, dblk_page_nelmts, H5AC_WRITE)))
H5E_THROW(H5E_CANTPROTECT, "unable to protect fixed array data block page, address = %llu", (unsigned long long)dblk_page_addr)
/* Set the element in the data block page */
HDmemcpy(((uint8_t *)dblk_page->elmts) + (hdr->cparam.cls->nat_elmt_size * elmt_idx), elmt, hdr->cparam.cls->nat_elmt_size);
dblk_page_cache_flags |= H5AC__DIRTIED_FLAG;
} /* end else */
CATCH
/* Check for header modified */
if(hdr_dirty)
if(H5FA__hdr_modified(hdr) < 0)
H5E_THROW(H5E_CANTMARKDIRTY, "unable to mark fixed array header as modified")
/* Release resources */
if(dblock && H5FA__dblock_unprotect(dblock, dxpl_id, dblock_cache_flags) < 0)
H5E_THROW(H5E_CANTUNPROTECT, "unable to release fixed array data block")
if(dblk_page && H5FA__dblk_page_unprotect(dblk_page, dxpl_id, dblk_page_cache_flags) < 0)
H5E_THROW(H5E_CANTUNPROTECT, "unable to release fixed array data block page")
END_FUNC(PRIV) /* end H5FA_set() */
/*-------------------------------------------------------------------------
* Function: H5FA_get
*
* Purpose: Get an element of a fixed array
*
* Return: SUCCEED/FAIL
*
* Programmer: Vailin Choi
* Thursday, April 30, 2009
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PRIV, ERR,
herr_t, SUCCEED, FAIL,
H5FA_get(const H5FA_t *fa, hid_t dxpl_id, hsize_t idx, void *elmt))
/* Local variables */
H5FA_hdr_t *hdr = fa->hdr; /* Header for FA */
H5FA_dblock_t *dblock = NULL; /* Pointer to data block for FA */
H5FA_dblk_page_t *dblk_page = NULL; /* Pointer to data block page for FA */
#ifdef H5FA_DEBUG
HDfprintf(stderr, "%s: Called\n", FUNC);
HDfprintf(stderr, "%s: Index %Hu\n", FUNC, idx);
#endif /* H5FA_DEBUG */
/*
* Check arguments.
*/
HDassert(fa);
HDassert(fa->hdr);
/* Set the shared array header's file context for this operation */
hdr->f = fa->f;
/* Check if the fixed array data block has been allocated on disk yet */
if(!H5F_addr_defined(hdr->dblk_addr)) {
/* Call the class's 'fill' callback */
if((hdr->cparam.cls->fill)(elmt, (size_t)1) < 0)
H5E_THROW(H5E_CANTSET, "can't set element to class's fill value")
} /* end if */
else {
/* Get the data block */
HDassert(H5F_addr_defined(hdr->dblk_addr));
if(NULL == (dblock = H5FA__dblock_protect(hdr, dxpl_id, hdr->dblk_addr, hdr->stats.nelmts, H5AC_READ)))
H5E_THROW(H5E_CANTPROTECT, "unable to protect fixed array data block, address = %llu", (unsigned long long)hdr->dblk_addr)
/* Check for paged data block */
if(!dblock->npages)
/* Retrieve element from data block */
HDmemcpy(elmt, ((uint8_t *)dblock->elmts) + (hdr->cparam.cls->nat_elmt_size * idx), hdr->cparam.cls->nat_elmt_size);
else { /* paging */
size_t page_idx; /* Index of page within data block */
/* Compute the page index */
page_idx = (size_t)(idx / dblock->dblk_page_nelmts);
/* Check if the page is defined yet */
if(!H5V_bit_get(dblock->dblk_page_init, page_idx)) {
/* Call the class's 'fill' callback */
if((hdr->cparam.cls->fill)(elmt, (size_t)1) < 0)
H5E_THROW(H5E_CANTSET, "can't set element to class's fill value")
/* We've retrieved the value, leave now */
H5_LEAVE(SUCCEED)
} /* end if */
else { /* get the page */
size_t dblk_page_nelmts; /* # of elements in a data block page */
size_t elmt_idx; /* Element index within the page */
haddr_t dblk_page_addr; /* Address of data block page */
/* Compute the element index */
elmt_idx = (size_t)(idx % dblock->dblk_page_nelmts);
/* Compute the address of the data block */
dblk_page_addr = dblock->addr + H5FA_DBLOCK_PREFIX_SIZE(dblock) + ((hsize_t)page_idx * dblock->dblk_page_size);
/* Check for using last page, to set the number of elements on the page */
if((page_idx + 1) == dblock->npages)
dblk_page_nelmts = dblock->last_page_nelmts;
else
dblk_page_nelmts = dblock->dblk_page_nelmts;
/* Protect the data block page */
if(NULL == (dblk_page = H5FA__dblk_page_protect(hdr, dxpl_id, dblk_page_addr, dblk_page_nelmts, H5AC_READ)))
H5E_THROW(H5E_CANTPROTECT, "unable to protect fixed array data block page, address = %llu", (unsigned long long)dblk_page_addr)
/* Retrieve element from data block */
HDmemcpy(elmt, ((uint8_t *)dblk_page->elmts) + (hdr->cparam.cls->nat_elmt_size * elmt_idx), hdr->cparam.cls->nat_elmt_size);
} /* end else */
} /* end else */
} /* end else */
CATCH
if(dblock && H5FA__dblock_unprotect(dblock, dxpl_id, H5AC__NO_FLAGS_SET) < 0)
H5E_THROW(H5E_CANTUNPROTECT, "unable to release fixed array data block")
if(dblk_page && H5FA__dblk_page_unprotect(dblk_page, dxpl_id, H5AC__NO_FLAGS_SET) < 0)
H5E_THROW(H5E_CANTUNPROTECT, "unable to release fixed array data block page")
END_FUNC(PRIV) /* end H5FA_get() */
/*-------------------------------------------------------------------------
* Function: H5FA_close
*
* Purpose: Close a fixed array
*
* Return: SUCCEED/FAIL
*
* Programmer: Vailin Choi
* Thursday, April 30, 2009
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PRIV, ERR,
herr_t, SUCCEED, FAIL,
H5FA_close(H5FA_t *fa, hid_t dxpl_id))
/* Local variables */
hbool_t pending_delete = FALSE; /* Whether the array is pending deletion */
haddr_t fa_addr = HADDR_UNDEF; /* Address of array (for deletion) */
#ifdef H5FA_DEBUG
HDfprintf(stderr, "%s: Called\n", FUNC);
#endif /* H5FA_DEBUG */
/*
* Check arguments.
*/
HDassert(fa);
/* Decrement file reference & check if this is the last open fixed array using the shared array header */
if(0 == H5FA__hdr_fuse_decr(fa->hdr)) {
/* Set the shared array header's file context for this operation */
fa->hdr->f = fa->f;
/* Shut down anything that can't be put in the header's 'flush' callback */
/* Check for pending array deletion */
if(fa->hdr->pending_delete) {
/* Set local info, so array deletion can occur after decrementing the
* header's ref count
*/
pending_delete = TRUE;
fa_addr = fa->hdr->addr;
} /* end if */
} /* end if */
/* Check for pending array deletion */
if(pending_delete) {
H5FA_hdr_t *hdr; /* Another pointer to fixed array header */
#ifndef NDEBUG
{
unsigned hdr_status = 0; /* Header's status in the metadata cache */
/* Check the header's status in the metadata cache */
if(H5AC_get_entry_status(fa->f, fa_addr, &hdr_status) < 0)
H5E_THROW(H5E_CANTGET, "unable to check metadata cache status for fixed array header")
/* Sanity checks on header */
HDassert(hdr_status & H5AC_ES__IN_CACHE);
HDassert(hdr_status & H5AC_ES__IS_PINNED);
HDassert(!(hdr_status & H5AC_ES__IS_PROTECTED));
}
#endif /* NDEBUG */
/* Lock the array header into memory */
/* (OK to pass in NULL for callback context, since we know the header must be in the cache) */
if(NULL == (hdr = (H5FA_hdr_t *)H5AC_protect(fa->f, dxpl_id, H5AC_FARRAY_HDR, fa_addr, NULL, NULL, H5AC_WRITE)))
H5E_THROW(H5E_CANTLOAD, "unable to load fixed array header")
/* Set the shared array header's file context for this operation */
hdr->f = fa->f;
/* Decrement the reference count on the array header */
/* (don't put in H5FA_hdr_fuse_decr() as the array header may be evicted
* immediately -QAK)
*/
if(H5FA__hdr_decr(fa->hdr) < 0)
H5E_THROW(H5E_CANTDEC, "can't decrement reference count on shared array header")
/* Delete array, starting with header (unprotects header) */
if(H5FA__hdr_delete(hdr, dxpl_id) < 0)
H5E_THROW(H5E_CANTDELETE, "unable to delete fixed array")
} /* end if */
else {
/* Decrement the reference count on the array header */
/* (don't put in H5FA_hdr_fuse_decr() as the array header may be evicted
* immediately -QAK)
*/
if(H5FA__hdr_decr(fa->hdr) < 0)
H5E_THROW(H5E_CANTDEC, "can't decrement reference count on shared array header")
} /* end else */
/* Release the fixed array wrapper */
fa = H5FL_FREE(H5FA_t, fa);
CATCH
END_FUNC(PRIV) /* end H5FA_close() */
/*-------------------------------------------------------------------------
* Function: H5FA_delete
*
* Purpose: Delete a fixed array
*
* Return: SUCCEED/FAIL
*
* Programmer: Vailin Choi
* Thursday, April 30, 2009
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PRIV, ERR,
herr_t, SUCCEED, FAIL,
H5FA_delete(H5F_t *f, hid_t dxpl_id, haddr_t fa_addr, void *ctx_udata))
/* Local variables */
H5FA_hdr_t *hdr = NULL; /* The fixed array header information */
/*
* Check arguments.
*/
HDassert(f);
HDassert(H5F_addr_defined(fa_addr));
/* Lock the array header into memory */
#ifdef H5FA_DEBUG
HDfprintf(stderr, "%s: fa_addr = %a\n", FUNC, fa_addr);
#endif /* H5FA_DEBUG */
if(NULL == (hdr = (H5FA_hdr_t *)H5AC_protect(f, dxpl_id, H5AC_FARRAY_HDR, fa_addr, NULL, ctx_udata, H5AC_WRITE)))
H5E_THROW(H5E_CANTPROTECT, "unable to protect fixed array header, address = %llu", (unsigned long long)fa_addr)
/* Check for files using shared array header */
if(hdr->file_rc)
hdr->pending_delete = TRUE;
else {
/* Set the shared array header's file context for this operation */
hdr->f = f;
/* Delete array now, starting with header (unprotects header) */
if(H5FA__hdr_delete(hdr, dxpl_id) < 0)
H5E_THROW(H5E_CANTDELETE, "unable to delete fixed array")
hdr = NULL;
} /* end if */
CATCH
/* Unprotect the header, if an error occurred */
if(hdr && H5AC_unprotect(f, dxpl_id, H5AC_FARRAY_HDR, fa_addr, hdr, H5AC__NO_FLAGS_SET) < 0)
H5E_THROW(H5E_CANTUNPROTECT, "unable to release fixed array header")
END_FUNC(PRIV) /* end H5FA_delete() */
/*-------------------------------------------------------------------------
* Function: H5FA_iterate
*
* Purpose: Iterate over the elements of a fixed array
*
* Note: This is not very efficient, we should be iterating directly
* over the fixed array's direct block [pages].
*
* Return: SUCCEED/FAIL
*
* Programmer: Vailin Choi
* Thursday, April 30, 2009
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PRIV, ERR,
herr_t, SUCCEED, FAIL,
H5FA_iterate(H5FA_t *fa, hid_t dxpl_id, H5FA_operator_t op, void *udata))
/* Local variables */
uint8_t *elmt = NULL;
hsize_t u;
/*
* Check arguments.
*/
HDassert(fa);
HDassert(op);
HDassert(udata);
/* Allocate space for a native array element */
if(NULL == (elmt = H5FL_BLK_MALLOC(native_elmt, fa->hdr->cparam.cls->nat_elmt_size)))
H5E_THROW(H5E_CANTALLOC, "memory allocation failed for fixed array element")
/* Iterate over all elements in array */
for(u = 0; u < fa->hdr->stats.nelmts; u++) {
int cb_ret; /* Return value from callback */
/* Get array element */
if(H5FA_get(fa, dxpl_id, u, elmt) < 0)
H5E_THROW(H5E_CANTGET, "unable to delete fixed array")
/* Make callback */
if((cb_ret = (*op)(u, elmt, udata)) < 0) {
H5E_PRINTF(H5E_BADITER, "iterator function failed");
H5_LEAVE(cb_ret)
} /* end if */
} /* end for */
CATCH
if(elmt)
elmt = H5FL_BLK_FREE(native_elmt, elmt);
END_FUNC(PRIV) /* end H5FA_iterate() */
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