mirror of
https://github.com/HDFGroup/hdf5.git
synced 2024-11-27 02:10:55 +08:00
e3537b7ee7
Rename H5AC_set() to H5AC_insert_entry() Get rid of H5C_set_skip_flags() & related flags Tested on: Mac OS X/32 10.6.4 (amazon) w/debug, production & parallel (too simple to require h5committest)
446 lines
15 KiB
C
446 lines
15 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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* Copyright by the Board of Trustees of the University of Illinois. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the files COPYING and Copyright.html. COPYING can be found at the root *
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* of the source code distribution tree; Copyright.html can be found at the *
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* root level of an installed copy of the electronic HDF5 document set and *
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* is linked from the top-level documents page. It can also be found at *
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* http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
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* access to either file, you may request a copy from help@hdfgroup.org. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/*-------------------------------------------------------------------------
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*
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* Created: H5FAdblock.c
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*
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* Purpose: Data block routines for fixed arrays.
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*
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*-------------------------------------------------------------------------
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*/
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/**********************/
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/* Module Declaration */
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/**********************/
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#define H5FA_MODULE
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/***********************/
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/* Other Packages Used */
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/***********************/
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/***********/
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/* Headers */
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/***********/
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#include "H5private.h" /* Generic Functions */
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#include "H5Eprivate.h" /* Error handling */
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#include "H5FApkg.h" /* Fixed Arrays */
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#include "H5FLprivate.h" /* Free Lists */
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#include "H5MFprivate.h" /* File memory management */
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/****************/
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/* Local Macros */
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/****************/
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/******************/
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/* Local Typedefs */
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/******************/
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/********************/
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/* Package Typedefs */
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/********************/
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/********************/
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/* Local Prototypes */
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/********************/
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/*********************/
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/* Package Variables */
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/*********************/
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/*****************************/
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/* Library Private Variables */
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/*****************************/
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/*******************/
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/* Local Variables */
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/*******************/
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/* Declare a free list to manage the H5FA_dblock_t struct */
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H5FL_DEFINE_STATIC(H5FA_dblock_t);
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/* Declare a free list to manage the chunk elements */
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H5FL_BLK_DEFINE(chunk_elmts);
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/* Declare a free list to manage blocks of 'page init' bitmasks */
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H5FL_BLK_DEFINE(fa_page_init);
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/*-------------------------------------------------------------------------
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* Function: H5FA__dblock_alloc
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*
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* Purpose: Allocate fixed array data block
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*
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* Return: Non-NULL pointer to data block on success/NULL on failure
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*
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* Programmer: Vailin Choi
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* Thursday, April 30, 2009
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*
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*-------------------------------------------------------------------------
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*/
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BEGIN_FUNC(PKG, ERR,
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H5FA_dblock_t *, NULL, NULL,
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H5FA__dblock_alloc(H5FA_hdr_t *hdr, hsize_t nelmts))
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/* Local variables */
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H5FA_dblock_t *dblock = NULL; /* fixed array data block */
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/* Check arguments */
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HDassert(hdr);
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HDassert(nelmts > 0);
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/* Allocate memory for the data block */
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if(NULL == (dblock = H5FL_CALLOC(H5FA_dblock_t)))
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H5E_THROW(H5E_CANTALLOC, "memory allocation failed for fixed array data block")
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/* Share common array information */
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if(H5FA__hdr_incr(hdr) < 0)
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H5E_THROW(H5E_CANTINC, "can't increment reference count on shared array header")
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dblock->hdr = hdr;
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/* Set non-zero internal fields */
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dblock->dblk_page_nelmts = (size_t)1 << hdr->cparam.max_dblk_page_nelmts_bits;
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/* Check if this data block should be paged */
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if(nelmts > dblock->dblk_page_nelmts) {
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/* Compute number of pages */
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hsize_t npages = ((nelmts + dblock->dblk_page_nelmts) - 1) / dblock->dblk_page_nelmts;
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/* Safely assign the number of pages */
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H5_ASSIGN_OVERFLOW(/* To: */ dblock->npages, /* From: */ npages, /* From: */ hsize_t, /* To: */ size_t);
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/* Sanity check that we have at least 1 page */
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HDassert(dblock->npages > 0);
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/* Compute size of 'page init' flag array, in bytes */
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dblock->dblk_page_init_size = (dblock->npages + 7) / 8;
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HDassert(dblock->dblk_page_init_size > 0);
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/* Allocate space for 'page init' flags */
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if(NULL == (dblock->dblk_page_init = H5FL_BLK_CALLOC(fa_page_init, dblock->dblk_page_init_size)))
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H5E_THROW(H5E_CANTALLOC, "memory allocation failed for page init bitmask")
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/* Compute data block page size */
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dblock->dblk_page_size = (dblock->dblk_page_nelmts * hdr->cparam.raw_elmt_size) + H5FA_SIZEOF_CHKSUM;
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/* Compute the # of elements on last page */
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if(0 == nelmts % dblock->dblk_page_nelmts)
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dblock->last_page_nelmts = dblock->dblk_page_nelmts;
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else
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dblock->last_page_nelmts = (size_t)(nelmts % dblock->dblk_page_nelmts);
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} /* end if */
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else {
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hsize_t dblk_size = hdr->cparam.nelmts * hdr->cparam.cls->nat_elmt_size;
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/* Allocate buffer for elements in data block */
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H5_CHECK_OVERFLOW(dblk_size, /* From: */hsize_t, /* To: */size_t);
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if(NULL == (dblock->elmts = H5FL_BLK_MALLOC(chunk_elmts, (size_t)dblk_size)))
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H5E_THROW(H5E_CANTALLOC, "memory allocation failed for data block element buffer")
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} /* end else */
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/* Set the return value */
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ret_value = dblock;
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CATCH
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if(!ret_value)
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if(dblock && H5FA__dblock_dest(dblock) < 0)
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H5E_THROW(H5E_CANTFREE, "unable to destroy fixed array data block")
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END_FUNC(PKG) /* end H5FA__dblock_alloc() */
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/*-------------------------------------------------------------------------
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* Function: H5FA__dblock_create
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*
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* Purpose: Creates a fixed array data block in the file
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*
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* Return: Valid file address on success/HADDR_UNDEF on failure
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*
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* Programmer: Vailin Choi
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* Thursday, April 30, 2009
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*
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*-------------------------------------------------------------------------
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*/
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BEGIN_FUNC(PKG, ERR,
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haddr_t, HADDR_UNDEF, HADDR_UNDEF,
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H5FA__dblock_create(H5FA_hdr_t *hdr, hid_t dxpl_id, hbool_t *hdr_dirty,
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hsize_t nelmts))
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/* Local variables */
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H5FA_dblock_t *dblock = NULL; /* fixed array data block */
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haddr_t dblock_addr; /* fixed array data block address */
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#ifdef H5FA_DEBUG
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HDfprintf(stderr, "%s: Called, hdr->stats.nelmts = %Zu, nelmts = %Zu\n", FUNC, hdr->stats.nelmts, nelmts);
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#endif /* H5FA_DEBUG */
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/* Sanity check */
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HDassert(hdr);
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HDassert(hdr_dirty);
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HDassert(nelmts > 0);
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/* Allocate the data block */
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if(NULL == (dblock = H5FA__dblock_alloc(hdr, nelmts)))
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H5E_THROW(H5E_CANTALLOC, "memory allocation failed for fixed array data block")
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/* Set size of data block on disk */
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hdr->stats.dblk_size = dblock->size = H5FA_DBLOCK_SIZE(dblock);
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#ifdef H5FA_DEBUG
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HDfprintf(stderr, "%s: dblock->size = %Zu\n", FUNC, dblock->size);
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#endif /* H5FA_DEBUG */
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/* Allocate space for the data block on disk */
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if(HADDR_UNDEF == (dblock_addr = H5MF_alloc(hdr->f, H5FD_MEM_FARRAY_DBLOCK, dxpl_id, (hsize_t)dblock->size)))
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H5E_THROW(H5E_CANTALLOC, "file allocation failed for fixed array data block")
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dblock->addr = dblock_addr;
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/* Don't initialize elements if paged */
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if(!dblock->npages)
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/* Clear any elements in data block to fill value */
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if((hdr->cparam.cls->fill)(dblock->elmts, (size_t)hdr->cparam.nelmts) < 0)
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H5E_THROW(H5E_CANTSET, "can't set fixed array data block elements to class's fill value")
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/* Cache the new fixed array data block */
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if(H5AC_insert_entry(hdr->f, dxpl_id, H5AC_FARRAY_DBLOCK, dblock_addr, dblock, H5AC__NO_FLAGS_SET) < 0)
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H5E_THROW(H5E_CANTINSERT, "can't add fixed array data block to cache")
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/* Mark the header dirty (for updating statistics) */
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*hdr_dirty = TRUE;
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/* Set address of data block to return */
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ret_value = dblock_addr;
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CATCH
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if(!H5F_addr_defined(ret_value))
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if(dblock) {
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/* Release data block's disk space */
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if(H5F_addr_defined(dblock->addr) && H5MF_xfree(hdr->f, H5FD_MEM_FARRAY_DBLOCK, dxpl_id, dblock->addr, (hsize_t)dblock->size) < 0)
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H5E_THROW(H5E_CANTFREE, "unable to release fixed array data block")
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/* Destroy data block */
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if(H5FA__dblock_dest(dblock) < 0)
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H5E_THROW(H5E_CANTFREE, "unable to destroy fixed array data block")
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} /* end if */
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END_FUNC(PKG) /* end H5FA__dblock_create() */
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/*-------------------------------------------------------------------------
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* Function: H5FA__dblock_protect
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*
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* Purpose: Convenience wrapper around protecting fixed array data block
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*
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* Return: Non-NULL pointer to data block on success/NULL on failure
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*
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* Programmer: Vailin Choi
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* Thursday, April 30, 2009
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*
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*-------------------------------------------------------------------------
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*/
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BEGIN_FUNC(PKG, ERR,
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H5FA_dblock_t *, NULL, NULL,
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H5FA__dblock_protect(H5FA_hdr_t *hdr, hid_t dxpl_id, haddr_t dblk_addr,
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hsize_t dblk_nelmts, H5AC_protect_t rw))
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/* Local variables */
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H5FA_dblock_cache_ud_t udata; /* Information needed for loading data block */
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#ifdef H5FA_DEBUG
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HDfprintf(stderr, "%s: Called\n", FUNC);
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#endif /* H5FA_DEBUG */
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/* Sanity check */
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HDassert(hdr);
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HDassert(H5F_addr_defined(dblk_addr));
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HDassert(dblk_nelmts);
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/* Set up user data */
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udata.hdr = hdr;
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udata.nelmts = dblk_nelmts;
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/* Protect the data block */
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if(NULL == (ret_value = (H5FA_dblock_t *)H5AC_protect(hdr->f, dxpl_id, H5AC_FARRAY_DBLOCK, dblk_addr, &udata, rw)))
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H5E_THROW(H5E_CANTPROTECT, "unable to protect fixed array data block, address = %llu", (unsigned long long)dblk_addr)
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CATCH
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END_FUNC(PKG) /* end H5FA__dblock_protect() */
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/*-------------------------------------------------------------------------
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* Function: H5FA__dblock_unprotect
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*
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* Purpose: Convenience wrapper around unprotecting fixed array data block
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*
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* Return: Non-negative on success/Negative on failure
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*
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* Programmer: Vailin Choi
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* Thursday, April 30, 2009
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*
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*-------------------------------------------------------------------------
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*/
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BEGIN_FUNC(PKG, ERR,
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herr_t, SUCCEED, FAIL,
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H5FA__dblock_unprotect(H5FA_dblock_t *dblock, hid_t dxpl_id, unsigned cache_flags))
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/* Local variables */
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#ifdef H5FA_DEBUG
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HDfprintf(stderr, "%s: Called\n", FUNC);
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#endif /* H5FA_DEBUG */
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/* Sanity check */
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HDassert(dblock);
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/* Unprotect the data block */
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if(H5AC_unprotect(dblock->hdr->f, dxpl_id, H5AC_FARRAY_DBLOCK, dblock->addr, dblock, cache_flags) < 0)
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H5E_THROW(H5E_CANTUNPROTECT, "unable to unprotect fixed array data block, address = %llu", (unsigned long long)dblock->addr)
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CATCH
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END_FUNC(PKG) /* end H5FA__dblock_unprotect() */
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/*-------------------------------------------------------------------------
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* Function: H5FA__dblock_delete
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*
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* Purpose: Delete a data block
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*
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* Return: SUCCEED/FAIL
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*
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* Programmer: Vailin Choi
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* Thursday, April 30, 2009
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*
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*-------------------------------------------------------------------------
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*/
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BEGIN_FUNC(PKG, ERR,
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herr_t, SUCCEED, FAIL,
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H5FA__dblock_delete(H5FA_hdr_t *hdr, hid_t dxpl_id, haddr_t dblk_addr,
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hsize_t dblk_nelmts))
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/* Local variables */
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H5FA_dblock_t *dblock = NULL; /* Pointer to data block */
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#ifdef H5FA_DEBUG
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HDfprintf(stderr, "%s: Called\n", FUNC);
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#endif /* H5FA_DEBUG */
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/* Sanity check */
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HDassert(hdr);
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HDassert(H5F_addr_defined(dblk_addr));
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HDassert(dblk_nelmts > 0);
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/* Protect data block */
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if(NULL == (dblock = H5FA__dblock_protect(hdr, dxpl_id, dblk_addr, dblk_nelmts, H5AC_WRITE)))
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H5E_THROW(H5E_CANTPROTECT, "unable to protect fixed array data block, address = %llu", (unsigned long long)dblk_addr)
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/* Check if data block is paged */
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if(dblock->npages) {
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haddr_t dblk_page_addr; /* Address of each data block page */
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size_t u; /* Local index variable */
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/* Set up initial state */
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dblk_page_addr = dblk_addr + H5FA_DBLOCK_PREFIX_SIZE(dblock);
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/* Iterate over pages in data block */
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for(u = 0; u < dblock->npages; u++) {
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#ifdef H5FA_DEBUG
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HDfprintf(stderr, "%s: Expunging data block page from cache\n", FUNC);
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#endif /* H5FA_DEBUG */
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/* Evict the data block page from the metadata cache */
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/* (OK to call if it doesn't exist in the cache) */
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if(H5AC_expunge_entry(hdr->f, dxpl_id, H5AC_FARRAY_DBLK_PAGE, dblk_page_addr, H5AC__NO_FLAGS_SET) < 0)
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H5E_THROW(H5E_CANTEXPUNGE, "unable to remove array data block page from metadata cache")
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#ifdef H5FA_DEBUG
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HDfprintf(stderr, "%s: Done expunging data block page from cache\n", FUNC);
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#endif /* H5FA_DEBUG */
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/* Advance to next page address */
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dblk_page_addr += dblock->dblk_page_size;
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} /* end for */
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} /* end if */
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CATCH
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/* Finished deleting data block in metadata cache */
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if(dblock && H5FA__dblock_unprotect(dblock, dxpl_id, H5AC__DIRTIED_FLAG | H5AC__DELETED_FLAG | H5AC__FREE_FILE_SPACE_FLAG) < 0)
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H5E_THROW(H5E_CANTUNPROTECT, "unable to release fixed array data block")
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END_FUNC(PKG) /* end H5FA__dblock_delete() */
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/*-------------------------------------------------------------------------
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* Function: H5FA__dblock_dest
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*
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* Purpose: Destroys a fixed array data block in memory.
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*
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* Return: Non-negative on success/Negative on failure
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*
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* Programmer: Vailin Choi
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* Thursday, April 30, 2009
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*
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*-------------------------------------------------------------------------
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*/
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BEGIN_FUNC(PKG, ERR,
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herr_t, SUCCEED, FAIL,
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H5FA__dblock_dest(H5FA_dblock_t *dblock))
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/* Sanity check */
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HDassert(dblock);
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/* Check if shared header field has been initialized */
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if(dblock->hdr) {
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/* Check if we've got elements in the data block */
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if(dblock->elmts && !dblock->npages) {
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/* Free buffer for data block elements */
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HDassert(dblock->hdr->cparam.nelmts > 0);
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dblock->elmts = H5FL_BLK_FREE(chunk_elmts, dblock->elmts);
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} /* end if */
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/* Check if data block is paged */
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if(dblock->npages) {
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/* Free buffer for 'page init' bitmask, if there is one */
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HDassert(dblock->dblk_page_init_size > 0);
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if(dblock->dblk_page_init)
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dblock->dblk_page_init = H5FL_BLK_FREE(fa_page_init, dblock->dblk_page_init);
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} /* end if */
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/* Decrement reference count on shared info */
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if(H5FA__hdr_decr(dblock->hdr) < 0)
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H5E_THROW(H5E_CANTDEC, "can't decrement reference count on shared array header")
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dblock->hdr = NULL;
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} /* end if */
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/* Free the data block itself */
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dblock = H5FL_FREE(H5FA_dblock_t, dblock);
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CATCH
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END_FUNC(PKG) /* end H5FA__dblock_dest() */
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