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authorQuincey Koziol <koziol@hdfgroup.org>2009-07-03 04:22:31 (GMT)
committerQuincey Koziol <koziol@hdfgroup.org>2009-07-03 04:22:31 (GMT)
commit1521b1dd1b00808da0f03f9b5e312100e8f83ee4 (patch)
tree4ac2fb3286b250524edb97dbbceffdaab60d8861 /src/H5FA.c
parente844def040da6235cf37ce7feb136720e423edb4 (diff)
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[svn-r17155] Description:
Bring r17154 from 'revise_chunks' branch to trunk: Add fixed array data structure. (For initial use as a chunk index) Tested on: FreeBSD/32 6.3 (duty) in debug mode FreeBSD/64 6.3 (liberty) w/C++ & FORTRAN, in debug mode Linux/32 2.6 (jam) w/PGI compilers, w/C++ & FORTRAN, w/threadsafe, in debug mode Linux/64-amd64 2.6 (smirom) w/Intel compilers w/default API=1.6.x, w/C++ & FORTRAN, in production mode Solaris/32 2.10 (linew) w/deprecated symbols disabled, w/C++ & FORTRAN, w/szip filter, in production mode Linux/64-ia64 2.6 (cobalt) w/Intel compilers, w/C++ & FORTRAN, in production mode Linux/64-ia64 2.4 (tg-login3) w/parallel, w/FORTRAN, in debug mode Linux/64-amd64 2.6 (abe) w/parallel, w/FORTRAN, in production mode Mac OS X/32 10.5.7 (amazon) in debug mode Mac OS X/32 10.5.7 (amazon) w/C++ & FORTRAN, w/threadsafe, in production mode
Diffstat (limited to 'src/H5FA.c')
-rw-r--r--src/H5FA.c704
1 files changed, 704 insertions, 0 deletions
diff --git a/src/H5FA.c b/src/H5FA.c
new file mode 100644
index 0000000..a8cd36b
--- /dev/null
+++ b/src/H5FA.c
@@ -0,0 +1,704 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * 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 */
+/*********************/
+
+
+/*****************************/
+/* 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);
+
+ /* 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, cparam->cls, NULL, 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, const H5FA_class_t *cls,
+ 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));
+ HDassert(cls);
+
+ /* 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, cls, 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 */
+ hsize_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) +
+ (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 create 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 */
+ hsize_t elmt_idx; /* Element index within the page */
+ haddr_t dblk_page_addr; /* Address of data block page */
+ size_t dblk_page_nelmts; /* # of elements in a 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) + (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 */
+
+ /* 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")
+
+ /* Check for pending array deletion */
+ if(pending_delete) {
+ H5FA_hdr_t *hdr; /* Another pointer to fixed array header */
+
+ /* Lock the array header into memory */
+ 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;
+
+ /* 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 */
+
+ /* 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))
+
+ /* 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, NULL, 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)
+ (void)H5FL_BLK_FREE(native_elmt, elmt);
+
+END_FUNC(PRIV) /* end H5FA_iterate() */
+