/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have * * access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /*------------------------------------------------------------------------- * * Created: H5HFiblock.c * Apr 10 2006 * Quincey Koziol * * Purpose: Indirect block routines for fractal heaps. * *------------------------------------------------------------------------- */ /****************/ /* Module Setup */ /****************/ #define H5HF_PACKAGE /*suppress error about including H5HFpkg */ /***********/ /* Headers */ /***********/ #include "H5private.h" /* Generic Functions */ #include "H5Eprivate.h" /* Error handling */ #include "H5HFpkg.h" /* Fractal heaps */ #include "H5MFprivate.h" /* File memory management */ #include "H5Vprivate.h" /* Vectors and arrays */ /****************/ /* Local Macros */ /****************/ /******************/ /* Local Typedefs */ /******************/ /********************/ /* Package Typedefs */ /********************/ /********************/ /* Local Prototypes */ /********************/ /* Indirect block routines */ static herr_t H5HF_man_iblock_inc_loc(H5HF_indirect_t *iblock); static herr_t H5HF_man_iblock_skip_blocks(H5HF_t *hdr, H5HF_indirect_t *iblock, haddr_t iblock_addr, unsigned start_entry, unsigned nentries); static herr_t H5HF_man_iblock_skip_ranges(H5HF_t *hdr, H5HF_indirect_t *iblock, haddr_t iblock_addr, unsigned start_entry, unsigned nentries); static herr_t H5HF_man_iblock_create(H5HF_t *fh, hid_t dxpl_id, hsize_t block_off, unsigned nrows, unsigned max_rows, haddr_t *addr_p); /*********************/ /* Package Variables */ /*********************/ /* Declare a free list to manage the H5HF_indirect_t struct */ H5FL_DEFINE(H5HF_indirect_t); /* Declare a free list to manage the H5HF_indirect_ent_t sequence information */ H5FL_SEQ_DEFINE(H5HF_indirect_ent_t); /*****************************/ /* Library Private Variables */ /*****************************/ /*******************/ /* Local Variables */ /*******************/ /*------------------------------------------------------------------------- * Function: H5HF_man_iblock_inc_loc * * Purpose: Increment location of next direct block in indirect block * * Return: SUCCEED/FAIL * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Mar 14 2006 * *------------------------------------------------------------------------- */ static herr_t H5HF_man_iblock_inc_loc(H5HF_indirect_t *iblock) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5HF_man_iblock_inc_loc) /* * Check arguments. */ HDassert(iblock); /* Increment block entry */ iblock->next_entry++; /* Increment column */ iblock->next_col++; /* Check for walking off end of column */ if(iblock->next_col == iblock->shared->man_dtable.cparam.width) { /* Reset column */ iblock->next_col = 0; /* Increment row & block size */ iblock->next_row++; if(iblock->next_row > 1) iblock->next_size *= 2; /* Check for filling up indirect block */ if(iblock->next_row == iblock->max_rows) { /* Check for "full" heap */ if(iblock->parent == NULL) HGOTO_ERROR(H5E_HEAP, H5E_CANTINC, FAIL, "can't advance fractal heap block location") /* Increment location for parent indirect block */ if(H5HF_man_iblock_inc_loc(iblock->parent) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTINC, FAIL, "can't advance fractal heap block location") } /* end if */ } /* end if */ #ifdef QAK HDfprintf(stderr, "%s: iblock->next_row = %u\n", FUNC, iblock->next_row); HDfprintf(stderr, "%s: iblock->next_col = %u\n", FUNC, iblock->next_col); HDfprintf(stderr, "%s: iblock->next_entry = %u\n", FUNC, iblock->next_entry); HDfprintf(stderr, "%s: iblock->next_size = %Zu\n", FUNC, iblock->next_size); #endif /* QAK */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5HF_man_iblock_inc_loc() */ /*------------------------------------------------------------------------- * Function: H5HF_iblock_incr * * Purpose: Increment reference count on shared indirect block * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Mar 27 2006 * *------------------------------------------------------------------------- */ herr_t H5HF_iblock_incr(H5HF_indirect_t *iblock) { FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5HF_iblock_incr) /* Sanity check */ HDassert(iblock); /* XXX: When "un-evictable" feature is finished, mark the block as * unevictable on the first block to share it. - QAK */ /* Increment reference count on shared indirect block */ iblock->rc++; FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5HF_iblock_incr() */ /*------------------------------------------------------------------------- * Function: H5HF_iblock_decr * * Purpose: Decrement reference count on shared indirect block * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Mar 27 2006 * *------------------------------------------------------------------------- */ herr_t H5HF_iblock_decr(H5HF_indirect_t *iblock) { FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5HF_iblock_decr) /* Sanity check */ HDassert(iblock); /* Decrement reference count on shared indirect block */ iblock->rc--; /* XXX: When "un-evictable" feature is finished, mark the block as * evictable when the ref. count drops to zero. - QAK */ /* XXX: Take this call out after "un-evictable" flag is working */ H5HF_cache_iblock_dest_real(iblock); FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5HF_iblock_decr() */ /*------------------------------------------------------------------------- * Function: H5HF_iblock_dirty * * Purpose: Mark indirect block as dirty * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Mar 21 2006 * *------------------------------------------------------------------------- */ herr_t H5HF_iblock_dirty(hid_t dxpl_id, H5HF_indirect_t *iblock) { H5HF_indirect_t *tmp_iblock; /* Temporary pointer to indirect block */ hbool_t is_protected; /* Whether the indirect block is protected */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5HF_iblock_dirty) #ifdef QAK HDfprintf(stderr, "%s: Marking indirect block as dirty\n", FUNC); #endif /* QAK */ /* Sanity check */ HDassert(iblock); /* XXX: When "un-evictable" feature is finished, just mark the block as dirty * in the cache, instead of this protect -> unprotect kludge - QAK */ /* Protect the indirect block */ is_protected = iblock->cache_info.is_protected; if(!is_protected) { #ifdef QAK HDfprintf(stderr, "%s: iblock->addr = %a\n", FUNC, iblock->addr); #endif /* QAK */ if(NULL == (tmp_iblock = H5AC_protect(iblock->shared->f, dxpl_id, H5AC_FHEAP_IBLOCK, iblock->addr, &iblock->nrows, iblock->shared, H5AC_WRITE))) HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, FAIL, "unable to protect fractal heap indirect block") HDassert(iblock == tmp_iblock); } /* end if */ /* Set the dirty flags for the indirect block */ iblock->dirty = TRUE; /* Release the indirect block (marked as dirty) */ if(!is_protected) { if(H5AC_unprotect(iblock->shared->f, dxpl_id, H5AC_FHEAP_IBLOCK, iblock->addr, tmp_iblock, H5AC__DIRTIED_FLAG) < 0) HDONE_ERROR(H5E_HEAP, H5E_CANTUNPROTECT, FAIL, "unable to release fractal heap indirect block") } /* end if */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5HF_iblock_dirty() */ /*------------------------------------------------------------------------- * Function: H5HF_man_iblock_skip_blocks * * Purpose: Add skipped direct blocks to free space for heap * * Return: SUCCEED/FAIL * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Apr 3 2006 * *------------------------------------------------------------------------- */ static herr_t H5HF_man_iblock_skip_blocks(H5HF_t *hdr, H5HF_indirect_t *iblock, haddr_t iblock_addr, unsigned start_entry, unsigned nentries) { H5HF_free_section_t *sec_node; /* Pointer to free list section for range */ hsize_t sect_off; /* Offset of free section in heap */ unsigned curr_row; /* Current row in indirect block */ unsigned curr_col; /* Current column in indirect block */ unsigned u; /* Local index variables */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5HF_man_iblock_skip_blocks) #ifdef QAK HDfprintf(stderr, "%s: start_entry = %u, nentries = %u\n", FUNC, start_entry, nentries); #endif /* QAK */ /* * Check arguments. */ HDassert(hdr); HDassert(iblock); HDassert(H5F_addr_defined(iblock_addr)); /* Compute starting column & row */ curr_row = start_entry / hdr->man_dtable.cparam.width; curr_col = start_entry % hdr->man_dtable.cparam.width; /* Initialize information for rows skipped over */ sect_off = iblock->block_off; for(u = 0; u < curr_row; u++) sect_off += hdr->man_dtable.row_block_size[u] * hdr->man_dtable.cparam.width; for(u = 0; u < curr_col; u++) sect_off += hdr->man_dtable.row_block_size[curr_row]; #ifdef QAK HDfprintf(stderr, "%s: sect_off = %Zu\n", FUNC, sect_off); #endif /* QAK */ /* Loop over the blocks to skip */ for(u = start_entry; u < (start_entry + nentries); /* u is advanced in loop */) { unsigned row_entries; /* Number of entries in a particular row */ /* Compute number of entries in (possible partial) current row */ row_entries = MIN(hdr->man_dtable.cparam.width - curr_col, (start_entry + nentries) - u); #ifdef QAK HDfprintf(stderr, "%s: u = %u\n", FUNC, u); HDfprintf(stderr, "%s: curr_col = %u, curr_row = %u\n", FUNC, curr_col, curr_row); HDfprintf(stderr, "%s: row_entries = %u, hdr->man_dtable.row_dblock_free[%u] = %Hu\n", FUNC, row_entries, curr_row, hdr->man_dtable.row_dblock_free[curr_row]); #endif /* QAK */ /* Add free space section for blocks in this row */ /* Create free list section node for blocks skipped over */ if(NULL == (sec_node = H5FL_MALLOC(H5HF_free_section_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for direct block free list section") /* Set section's information */ sec_node->sect_addr = sect_off; sec_node->sect_size = hdr->man_dtable.row_dblock_free[curr_row]; sec_node->type = H5HF_SECT_RANGE; sec_node->u.range.iblock_addr = iblock_addr; sec_node->u.range.iblock_nrows = iblock->nrows; sec_node->u.range.row = curr_row; sec_node->u.range.col = curr_col; sec_node->u.range.num_entries = row_entries; /* Add new free space to the global list of space */ if(H5HF_flist_add(hdr->flist, sec_node, &sec_node->sect_size, &sec_node->sect_addr) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTINIT, FAIL, "can't add indirect block free space to global list") /* Advance row & column position */ sect_off += row_entries * hdr->man_dtable.row_block_size[curr_row]; curr_row++; curr_col = 0; /* (first partial row aligns this) */ u += row_entries; } /* end for */ /* Re-compute row information for next empty block */ #ifdef QAK HDfprintf(stderr, "%s: u = %u\n", FUNC, u); #endif /* QAK */ curr_row = u / hdr->man_dtable.cparam.width; #ifdef QAK HDfprintf(stderr, "%s: curr_row = %u\n", FUNC, curr_row); #endif /* QAK */ /* Set indirect block's "next entry" information */ iblock->next_col = 0; iblock->next_row = curr_row; iblock->next_size = hdr->man_dtable.row_block_size[curr_row]; iblock->next_entry = u; done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5HF_man_iblock_skip_blocks() */ /*------------------------------------------------------------------------- * Function: H5HF_man_iblock_skip_ranges * * Purpose: Add skipped indirect ranges to free space for heap * * Return: SUCCEED/FAIL * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Apr 4 2006 * *------------------------------------------------------------------------- */ static herr_t H5HF_man_iblock_skip_ranges(H5HF_t *hdr, H5HF_indirect_t *iblock, haddr_t iblock_addr, unsigned start_entry, unsigned nentries) { H5HF_free_section_t *sec_node; /* Pointer to free list section for range */ hsize_t sect_off; /* Offset of free section in heap */ size_t row_dblock_free_space; /* Size of free space for row of direct blocks in a row */ size_t acc_row_dblock_free_space; /* Accumulated size of free space for row of direct blocks in a row */ unsigned curr_row; /* Current row in indirect block */ unsigned curr_col; /* Current column in indirect block */ unsigned u, w; /* Local index variables */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5HF_man_iblock_skip_ranges) #ifdef QAK HDfprintf(stderr, "%s: start_entry = %u, nentries = %u\n", FUNC, start_entry, nentries); #endif /* QAK */ /* * Check arguments. */ HDassert(hdr); HDassert(iblock); HDassert(H5F_addr_defined(iblock_addr)); /* Compute starting column & row */ curr_row = start_entry / hdr->man_dtable.cparam.width; curr_col = start_entry % hdr->man_dtable.cparam.width; /* Initialize information for rows skipped over */ sect_off = iblock->block_off; for(u = 0; u < curr_row; u++) sect_off += hdr->man_dtable.row_block_size[u] * hdr->man_dtable.cparam.width; for(u = 0; u < curr_col; u++) sect_off += hdr->man_dtable.row_block_size[curr_row]; #ifdef QAK HDfprintf(stderr, "%s: sect_off = %Zu\n", FUNC, sect_off); #endif /* QAK */ /* Loop over the blocks to skip */ for(u = start_entry; u < (start_entry + nentries); /* u is advanced in inner loop */) { unsigned row_entries; /* Number of entries in a particular row */ unsigned num_rows; /* Number of rows in indirect blocks referenced */ /* Compute number of rows in indirect blocks covered by entry */ num_rows = (H5V_log2_of2((uint32_t)hdr->man_dtable.row_block_size[curr_row]) - H5V_log2_of2(hdr->man_dtable.cparam.start_block_size)) - 1; /* Compute number of entries in (possible partial) current row */ row_entries = MIN(hdr->man_dtable.cparam.width - curr_col, (start_entry + nentries) - u); #ifdef QAK HDfprintf(stderr, "%s: u = %u\n", FUNC, u); HDfprintf(stderr, "%s: curr_col = %u, curr_row = %u\n", FUNC, curr_col, curr_row); HDfprintf(stderr, "%s: row_entries = %u, num_rows = %u\n", FUNC, row_entries, num_rows); #endif /* QAK */ /* Loop over rows in indirect blocks covered */ acc_row_dblock_free_space = 0; for(w = 0; w < num_rows; w++) { /* Compute free space in direct blocks for this row */ row_dblock_free_space = hdr->man_dtable.cparam.width * hdr->man_dtable.row_dblock_free[w]; acc_row_dblock_free_space += row_dblock_free_space; #ifdef QAK HDfprintf(stderr, "%s: w = %u\n", FUNC, w); HDfprintf(stderr, "%s: hdr->man_dtable.row_dblock_free[%u] = %Zu\n", FUNC, w, hdr->man_dtable.row_dblock_free[w]); #endif /* QAK */ /* Add "indirect" free space section for blocks in this row */ /* Create free list section node for blocks skipped over */ if(NULL == (sec_node = H5FL_MALLOC(H5HF_free_section_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for direct block free list section") /* Set section's information */ sec_node->sect_addr = sect_off + hdr->man_dtable.row_block_off[w]; #ifdef QAK HDfprintf(stderr, "%s: sec_node->sect_addr = %a\n", FUNC, sec_node->sect_addr); #endif /* QAK */ sec_node->sect_size = hdr->man_dtable.row_dblock_free[w]; sec_node->type = H5HF_SECT_INDIRECT; sec_node->u.indirect.iblock_addr = iblock_addr; sec_node->u.indirect.iblock_nrows = iblock->nrows; sec_node->u.indirect.row = curr_row; sec_node->u.indirect.col = curr_col; sec_node->u.indirect.num_entries = row_entries; sec_node->u.indirect.indir_row = w; sec_node->u.indirect.indir_nrows = num_rows; /* Add new free space to the global list of space */ if(H5HF_flist_add(hdr->flist, sec_node, &sec_node->sect_size, &sec_node->sect_addr) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTINIT, FAIL, "can't add indirect block free space to global list") } /* end for */ #ifdef QAK HDfprintf(stderr, "%s: acc_row_dblock_free_space = %Zu\n", FUNC, acc_row_dblock_free_space); #endif /* QAK */ /* Advance row & column position */ sect_off += row_entries * hdr->man_dtable.row_block_size[curr_row]; curr_row++; curr_col = 0; /* (first partial row aligns this) */ u += row_entries; } /* end for */ /* Re-compute row information for next empty block */ #ifdef QAK HDfprintf(stderr, "%s: u = %u\n", FUNC, u); #endif /* QAK */ curr_row = u / hdr->man_dtable.cparam.width; #ifdef QAK HDfprintf(stderr, "%s: curr_row = %u\n", FUNC, curr_row); #endif /* QAK */ /* Set indirect block's "next entry" information */ iblock->next_col = 0; iblock->next_row = curr_row; iblock->next_size = hdr->man_dtable.row_block_size[curr_row]; iblock->next_entry = u; done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5HF_man_iblock_skip_ranges() */ /*------------------------------------------------------------------------- * Function: H5HF_man_iblock_place_dblock * * Purpose: Find indirect block with location for placing a direct block * * Note: Creates necessary indirect blocks * * Return: Pointer to indirect block on success, NULL on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Mar 14 2006 * *------------------------------------------------------------------------- */ H5HF_indirect_t * H5HF_man_iblock_place_dblock(H5HF_t *hdr, hid_t dxpl_id, size_t min_dblock_size, haddr_t *addr_p, size_t *entry_p, size_t *dblock_size) { H5HF_indirect_t *iblock; /* Pointer to indirect block */ haddr_t iblock_addr; /* Indirect block's address */ H5HF_indirect_t *ret_value; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5HF_man_iblock_place_dblock) #ifdef QAK HDfprintf(stderr, "%s: min_dblock_size = %Zu\n", FUNC, min_dblock_size); #endif /* QAK */ /* * Check arguments. */ HDassert(hdr); HDassert(min_dblock_size > 0); HDassert(addr_p); /* Check for creating first indirect block */ if(hdr->man_dtable.curr_root_rows == 0) { H5HF_direct_t *dblock; /* Pointer to direct block to query */ hsize_t acc_dblock_free; /* Accumulated free space in direct blocks */ hbool_t have_direct_block; /* Flag to indicate a direct block already exists */ unsigned nrows; /* Number of rows for root indirect block */ unsigned u; /* Local index variable */ #ifdef QAK HDfprintf(stderr, "%s: creating first indirect block\n", FUNC); #endif /* QAK */ /* Check for allocating entire root indirect block initially */ if(hdr->man_dtable.cparam.start_root_rows == 0) nrows = hdr->man_dtable.max_root_rows; else { unsigned rows_needed; /* Number of rows needed to get to direct block size */ unsigned block_row_off; /* Row offset from larger block sizes */ nrows = hdr->man_dtable.cparam.start_root_rows; block_row_off = H5V_log2_of2(min_dblock_size) - H5V_log2_of2(hdr->man_dtable.cparam.start_block_size); if(block_row_off > 0) block_row_off++; /* Account for the pair of initial rows of the initial block size */ rows_needed = 1 + block_row_off; if(nrows < rows_needed) nrows = rows_needed; } /* end else */ #ifdef QAK HDfprintf(stderr, "%s: nrows = %u\n", FUNC, nrows); #endif /* QAK */ /* Allocate root indirect block */ if(H5HF_man_iblock_create(hdr, dxpl_id, (hsize_t)0, nrows, hdr->man_dtable.max_root_rows, &iblock_addr) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, NULL, "can't allocate fractal heap indirect block") #ifdef QAK HDfprintf(stderr, "%s: iblock_addr = %a\n", FUNC, iblock_addr); #endif /* QAK */ /* Move current direct block (used as root) into new indirect block */ /* Lock new indirect block */ if(NULL == (iblock = H5AC_protect(hdr->f, dxpl_id, H5AC_FHEAP_IBLOCK, iblock_addr, &nrows, hdr, H5AC_WRITE))) HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, NULL, "unable to protect fractal heap indirect block") /* Check if there's already a direct block as root) */ have_direct_block = H5F_addr_defined(hdr->man_dtable.table_addr); #ifdef QAK HDfprintf(stderr, "%s: have_direct_block = %u\n", FUNC, (unsigned)have_direct_block); #endif /* QAK */ if(have_direct_block) { /* Lock first (root) direct block */ if(NULL == (dblock = H5AC_protect(hdr->f, dxpl_id, H5AC_FHEAP_DBLOCK, hdr->man_dtable.table_addr, &hdr->man_dtable.cparam.start_block_size, hdr, H5AC_READ))) HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, NULL, "unable to protect fractal heap direct block") /* Point indirect block at direct block to add */ iblock->child_free_space += (hssize_t)(dblock->blk_free_space - iblock->ents[0].free_space); iblock->ents[0].addr = hdr->man_dtable.table_addr; iblock->ents[0].free_space = dblock->blk_free_space; /* Make direct block share parent indirect block */ dblock->parent = iblock; dblock->par_entry = 0; dblock->par_addr = iblock->addr; dblock->par_nrows = iblock->nrows; if(H5HF_iblock_incr(iblock) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTINC, NULL, "can't increment reference count on shared indirect block") /* Unlock first (root) direct block */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_FHEAP_DBLOCK, hdr->man_dtable.table_addr, dblock, H5AC__NO_FLAGS_SET) < 0) HDONE_ERROR(H5E_HEAP, H5E_CANTUNPROTECT, NULL, "unable to release fractal heap direct block") dblock = NULL; /* Increment size of next block from this indirect block */ /* (account for the already existing direct block */ if(H5HF_man_iblock_inc_loc(iblock) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTINC, NULL, "can't advance fractal heap block location") } /* end if */ /* Check for skipping over direct blocks, in order to get to large enough block */ if(min_dblock_size > iblock->next_size) { /* Add skipped blocks to heap's free space */ if(H5HF_man_iblock_skip_blocks(hdr, iblock, iblock_addr, have_direct_block, ((nrows - 1) * hdr->man_dtable.cparam.width) - have_direct_block) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTDEC, NULL, "can't add skipped blocks to heap's free space") HDassert(iblock->next_size == min_dblock_size); } /* end if */ /* Mark indirect block as modified */ if(H5HF_iblock_dirty(dxpl_id, iblock) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTDIRTY, NULL, "can't mark indirect block as dirty") /* Point heap header at new indirect block */ hdr->man_dtable.curr_root_rows = nrows; hdr->man_dtable.table_addr = iblock_addr; /* Compute free space in direct blocks referenced from entries in root indirect block */ acc_dblock_free = 0; for(u = 0; u < nrows; u++) acc_dblock_free += hdr->man_dtable.row_dblock_free[u] * hdr->man_dtable.cparam.width; /* Account for potential initial direct block */ if(have_direct_block) acc_dblock_free -= hdr->man_dtable.row_dblock_free[0]; /* Extend heap to cover new root indirect block */ if(H5HF_hdr_extend_heap(hdr, hdr->man_dtable.row_block_off[nrows], acc_dblock_free) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTEXTEND, NULL, "can't increase space to cover root direct block") /* Mark heap header as modified */ hdr->dirty = TRUE; } /* end if */ else { #ifdef QAK HDfprintf(stderr, "%s: searching root indirect block\n", FUNC); #endif /* QAK */ /* Lock root indirect block */ iblock_addr = hdr->man_dtable.table_addr; if(NULL == (iblock = H5AC_protect(hdr->f, dxpl_id, H5AC_FHEAP_IBLOCK, iblock_addr, &hdr->man_dtable.curr_root_rows, hdr, H5AC_WRITE))) HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, NULL, "unable to protect fractal heap indirect block") #ifdef QAK HDfprintf(stderr, "%s: iblock->next_row = %u, iblock->nrows = %u\n", FUNC, iblock->next_row, iblock->nrows); HDfprintf(stderr, "%s: iblock->next_size = %Zu\n", FUNC, iblock->next_size); #endif /* QAK */ /* Check if we need a block past current allocation */ /* (i.e. extend the root indirect block) */ if(iblock->next_row == iblock->nrows || /* Don't try to extend the root indirect block if the requested * direct block is too large, but the * next direct block is in a child indirect block. */ (iblock->nrows < hdr->man_dtable.max_direct_rows && min_dblock_size > iblock->next_size)) { haddr_t new_addr; /* New address of indirect block */ hsize_t acc_dblock_free; /* Accumulated free space in direct blocks */ unsigned old_next_entry; /* The previous value of the "next entry" for the indirect block */ unsigned min_nrows = 0; /* Min. # of direct rows */ unsigned old_nrows; /* Old # of rows */ unsigned new_nrows; /* New # of rows */ size_t u; /* Local index variable */ #ifdef QAK HDfprintf(stderr, "%s: Extending root indirect block\n", FUNC); #endif /* QAK */ /* Keep this for later */ old_next_entry = iblock->next_entry; old_nrows = iblock->nrows; /* Check for skipping over rows */ if(iblock->nrows < hdr->man_dtable.max_direct_rows && min_dblock_size > iblock->next_size) { /* Sanity check */ HDassert(min_dblock_size > hdr->man_dtable.cparam.start_block_size); /* Make certain we allocate at least the required row for the block requested */ min_nrows = 2 + (H5V_log2_of2(min_dblock_size) - H5V_log2_of2(hdr->man_dtable.cparam.start_block_size)); /* Set the information for the next block, of the appropriate size */ iblock->next_entry = (min_nrows - 1) * hdr->man_dtable.cparam.width; } /* end if */ /* Check for special case of second row, which has blocks the same size as first row */ else if(iblock->next_row == 1) iblock->next_size = hdr->man_dtable.cparam.start_block_size; /* Compute new # of rows in indirect block */ new_nrows = MAX(min_nrows, MIN(2 * iblock->nrows, iblock->max_rows)); #ifdef QAK HDfprintf(stderr, "%s: min_nrows = %u, new_nrows = %u\n", FUNC, min_nrows, new_nrows); HDfprintf(stderr, "%s: iblock->nrows = %u\n", FUNC, iblock->nrows); HDfprintf(stderr, "%s: old_next_entry = %u, iblock->next_entry = %u\n", FUNC, old_next_entry, iblock->next_entry); #endif /* QAK */ /* Currently, the old block data is "thrown away" after the space is reallocated, * so avoid data copy in H5MF_realloc() call by just free'ing the space and * allocating new space. * * This also keeps the file smaller, by freeing the space and then * allocating new space, instead of vice versa (in H5MF_realloc). * * QAK - 3/14/2006 */ /* Free previous indirect block disk space */ if(H5MF_xfree(hdr->f, H5FD_MEM_FHEAP_IBLOCK, dxpl_id, iblock_addr, (hsize_t)iblock->size)<0) HGOTO_ERROR(H5E_STORAGE, H5E_CANTFREE, NULL, "unable to free fractal heap indirect block") /* Compute size of buffer needed for new indirect block */ iblock->nrows = new_nrows; iblock->size = H5HF_MAN_INDIRECT_SIZE(hdr, iblock); /* Allocate space for the new indirect block on disk */ if(HADDR_UNDEF == (new_addr = H5MF_alloc(hdr->f, H5FD_MEM_FHEAP_IBLOCK, dxpl_id, (hsize_t)iblock->size))) HGOTO_ERROR(H5E_STORAGE, H5E_NOSPACE, NULL, "file allocation failed for fractal heap indirect block") #ifdef QAK HDfprintf(stderr, "%s: new_addr = %a\n", FUNC, new_addr); #endif /* QAK */ /* Re-allocate direct block entry table */ if(NULL == (iblock->ents = H5FL_SEQ_REALLOC(H5HF_indirect_ent_t, iblock->ents, (iblock->nrows * hdr->man_dtable.cparam.width)))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for direct entries") /* Check for skipping over rows and add free section for skipped rows */ if(iblock->nrows < hdr->man_dtable.max_direct_rows && min_dblock_size > iblock->next_size) { /* Add skipped blocks to heap's free space */ if(H5HF_man_iblock_skip_blocks(hdr, iblock, new_addr, old_next_entry, (iblock->next_entry - old_next_entry)) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTDEC, NULL, "can't add skipped blocks to heap's free space") HDassert(iblock->next_size == min_dblock_size); } /* end if */ /* Initialize new direct block entries in rows added */ acc_dblock_free = 0; for(u = (old_nrows * hdr->man_dtable.cparam.width); u < (iblock->nrows * hdr->man_dtable.cparam.width); u++) { unsigned row = u / hdr->man_dtable.cparam.width; /* Row for current entry */ iblock->ents[u].addr = HADDR_UNDEF; iblock->ents[u].free_space = hdr->man_dtable.row_dblock_free[row]; iblock->child_free_space += iblock->ents[u].free_space; acc_dblock_free += iblock->ents[u].free_space; } /* end for */ /* Mark indirect block as dirty */ if(H5HF_iblock_dirty(dxpl_id, iblock) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTDIRTY, NULL, "can't mark indirect block as dirty") /* Release the indirect block (marked as dirty) */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_FHEAP_IBLOCK, iblock_addr, iblock, H5AC__DIRTIED_FLAG) < 0) HDONE_ERROR(H5E_HEAP, H5E_CANTUNPROTECT, NULL, "unable to release fractal heap indirect block") iblock = NULL; /* Move object in cache */ if(H5AC_rename(hdr->f, H5AC_FHEAP_IBLOCK, iblock_addr, new_addr) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTSPLIT, NULL, "unable to move fractal heap root indirect block") /* Update other shared header info */ hdr->man_dtable.curr_root_rows = new_nrows; hdr->man_dtable.table_addr = iblock_addr = new_addr; /* Extend heap to cover new root indirect block */ #ifdef QAK HDfprintf(stderr, "%s: hdr->man_dtable.row_block_off[new_nrows - 1] = %Hu\n", FUNC, hdr->man_dtable.row_block_off[new_nrows - 1]); HDfprintf(stderr, "%s: hdr->man_dtable.row_block_off[new_nrows] = %Hu\n", FUNC, hdr->man_dtable.row_block_off[new_nrows]); HDfprintf(stderr, "%s: acc_dblock_free = %Hu\n", FUNC, acc_dblock_free); #endif /* QAK */ if(H5HF_hdr_extend_heap(hdr, 2 * hdr->man_dtable.row_block_off[new_nrows - 1], acc_dblock_free) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTEXTEND, NULL, "can't increase space to cover root direct block") /* Mark heap header as modified */ hdr->dirty = TRUE; /* Lock root indirect block (again) */ if(NULL == (iblock = H5AC_protect(hdr->f, dxpl_id, H5AC_FHEAP_IBLOCK, iblock_addr, &hdr->man_dtable.curr_root_rows, hdr, H5AC_WRITE))) HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, NULL, "unable to protect fractal heap indirect block") iblock->addr = iblock_addr; } /* end if */ #ifdef QAK HDfprintf(stderr, "%s: Check 1.0\n", FUNC); HDfprintf(stderr, "%s: iblock->next_row = %u\n", FUNC, iblock->next_row); HDfprintf(stderr, "%s: iblock->next_col = %u\n", FUNC, iblock->next_col); HDfprintf(stderr, "%s: iblock->next_size = %Zu\n", FUNC, iblock->next_size); HDfprintf(stderr, "%s: iblock->next_entry = %u\n", FUNC, iblock->next_entry); #endif /* QAK */ /* Check for full direct block entries in current indirect block */ while(iblock->next_row >= hdr->man_dtable.max_direct_rows) { haddr_t new_iblock_addr; /* New indirect block's address */ H5HF_indirect_t *new_iblock; /* Pointer to new indirect block */ unsigned hdr_flags = H5AC__NO_FLAGS_SET; /* Metadata cache flags for indirect block */ unsigned nrows; /* Number of rows in new indirect block */ /* Compute # of rows in child indirect block */ nrows = (H5V_log2_of2((uint32_t)iblock->next_size) - hdr->man_dtable.first_row_bits) + 1; #ifdef QAK HDfprintf(stderr, "%s: Check 2.0\n", FUNC); HDfprintf(stderr, "%s: iblock->next_size = %Hu, nrows = %u\n", FUNC, iblock->next_size, nrows); HDfprintf(stderr, "%s: iblock->next_entry = %u\n", FUNC, iblock->next_entry); HDfprintf(stderr, "%s: iblock->next_row = %u\n", FUNC, iblock->next_row); HDfprintf(stderr, "%s: iblock->max_rows = %u\n", FUNC, iblock->max_rows); #endif /* QAK */ /* Check for skipping over indirect block rows */ if(hdr->man_dtable.row_block_size[nrows - 1] < min_dblock_size) { unsigned child_rows_needed; /* Number of rows needed to hold direct block */ /* Compute # of rows needed in child indirect block */ child_rows_needed = (H5V_log2_of2(min_dblock_size) - H5V_log2_of2(hdr->man_dtable.cparam.start_block_size)) + 2; HDassert(child_rows_needed > nrows); #ifdef QAK HDfprintf(stderr, "%s: child_rows_needed = %u\n", FUNC, child_rows_needed); #endif /* QAK */ /* Add skipped indirect ranges to heap's free space */ if(H5HF_man_iblock_skip_ranges(hdr, iblock, iblock->addr, iblock->next_entry, (child_rows_needed - nrows) * hdr->man_dtable.cparam.width) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTDEC, NULL, "can't add skipped blocks to heap's free space") /* Update the number of rows in requested child indirect block */ nrows = child_rows_needed; #ifdef QAK HDfprintf(stderr, "%s: (new) nrows = %u\n", FUNC, nrows); #endif /* QAK */ } /* end if */ #ifdef QAK HDfprintf(stderr, "%s: iblock->next_size = %Hu, nrows = %u\n", FUNC, iblock->next_size, nrows); HDfprintf(stderr, "%s: iblock->next_entry = %u\n", FUNC, iblock->next_entry); HDfprintf(stderr, "%s: iblock->next_row = %u\n", FUNC, iblock->next_row); HDfprintf(stderr, "%s: iblock->max_rows = %u\n", FUNC, iblock->max_rows); #endif /* QAK */ /* Check for walking off indirect block rows */ if(iblock->next_row >= iblock->max_rows) { #ifdef QAK HDfprintf(stderr, "%s: iblock->parent->nrows = %u\n", FUNC, iblock->parent->nrows); HDfprintf(stderr, "%s: iblock->parent->next_entry = %u\n", FUNC, iblock->parent->next_entry); HDfprintf(stderr, "%s: iblock->parent->next_size = %Hu\n", FUNC, iblock->parent->next_size); HDfprintf(stderr, "%s: iblock->parent->next_row = %u\n", FUNC, iblock->parent->next_row); HDfprintf(stderr, "%s: iblock->parent->next_col = %u\n", FUNC, iblock->parent->next_col); #endif /* QAK */ /* Locate parent indirect block */ new_iblock_addr = iblock->parent->addr; nrows = iblock->parent->nrows; /* Lock parent indirect block */ if(NULL == (new_iblock = H5AC_protect(hdr->f, dxpl_id, H5AC_FHEAP_IBLOCK, new_iblock_addr, &nrows, hdr, H5AC_WRITE))) HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, NULL, "unable to protect fractal heap indirect block") /* Advance location in parent lock */ if(H5HF_man_iblock_inc_loc(new_iblock) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTINC, NULL, "can't advance fractal heap block location") } /* end if */ else { /* Check for allocating new indirect block */ if(!H5F_addr_defined(iblock->ents[iblock->next_entry].addr)) { hsize_t new_iblock_off; /* Direct block offset in heap address space */ #ifdef QAK HDfprintf(stderr, "%s: Allocating new indirect block\n", FUNC); #endif /* QAK */ /* Compute the direct block's offset in the heap's address space */ new_iblock_off = iblock->block_off; new_iblock_off += hdr->man_dtable.row_block_off[iblock->next_entry / hdr->man_dtable.cparam.width]; new_iblock_off += hdr->man_dtable.row_block_size[iblock->next_entry / hdr->man_dtable.cparam.width] * (iblock->next_entry % hdr->man_dtable.cparam.width); /* Allocate new indirect block */ if(H5HF_man_iblock_create(hdr, dxpl_id, new_iblock_off, nrows, nrows, &new_iblock_addr) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, NULL, "can't allocate fractal heap indirect block") /* Lock new indirect block */ if(NULL == (new_iblock = H5AC_protect(hdr->f, dxpl_id, H5AC_FHEAP_IBLOCK, new_iblock_addr, &nrows, hdr, H5AC_WRITE))) HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, NULL, "unable to protect fractal heap indirect block") /* Set parent information */ HDassert(new_iblock->parent == NULL); new_iblock->parent = iblock; new_iblock->par_entry = iblock->next_entry; new_iblock->par_nrows = iblock->nrows; new_iblock->par_addr = iblock->addr; if(H5HF_iblock_incr(iblock) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTINC, NULL, "can't increment reference count on shared indirect block") /* Point current indirect block at new indirect block */ iblock->ents[iblock->next_entry].addr = new_iblock_addr; #ifdef QAK HDfprintf(stderr, "%s: new_iblock->next_row = %u\n", FUNC, new_iblock->next_row); HDfprintf(stderr, "%s: new_iblock->next_col = %u\n", FUNC, new_iblock->next_col); HDfprintf(stderr, "%s: new_iblock->next_size = %Zu\n", FUNC, new_iblock->next_size); HDfprintf(stderr, "%s: new_iblock->next_entry = %u\n", FUNC, new_iblock->next_entry); #endif /* QAK */ /* Check for skipping over rows and add free section for skipped rows */ if(min_dblock_size > new_iblock->next_size) { unsigned new_entry; /* Entry of direct block which is large enough */ /* Compute entry for direct block size requested */ new_entry = hdr->man_dtable.cparam.width * (1 + (H5V_log2_of2(min_dblock_size) - H5V_log2_of2(hdr->man_dtable.cparam.start_block_size))); #ifdef QAK HDfprintf(stderr, "%s: new_entry = %u\n", FUNC, new_entry); #endif /* QAK */ /* Add skipped blocks to heap's free space */ if(H5HF_man_iblock_skip_blocks(hdr, new_iblock, new_iblock->addr, 0, new_entry) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTDEC, NULL, "can't add skipped blocks to heap's free space") HDassert(new_iblock->next_size == min_dblock_size); } /* end if */ /* Mark current indirect block as modified */ if(H5HF_iblock_dirty(dxpl_id, iblock) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTDIRTY, NULL, "can't mark indirect block as dirty") /* Set dirty flag for the current indirect block */ hdr_flags |= H5AC__DIRTIED_FLAG; } /* end if */ else { #ifdef QAK HDfprintf(stderr, "%s: Descending existing indirect block\n", FUNC); #endif /* QAK */ /* Locate child indirect block */ new_iblock_addr = iblock->ents[iblock->next_entry].addr; /* Lock new indirect block */ if(NULL == (new_iblock = H5AC_protect(hdr->f, dxpl_id, H5AC_FHEAP_IBLOCK, new_iblock_addr, &nrows, hdr, H5AC_WRITE))) HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, NULL, "unable to protect fractal heap indirect block") } /* end else */ } /* end else */ #ifdef QAK HDfprintf(stderr, "%s: new_iblock->next_row = %u\n", FUNC, new_iblock->next_row); HDfprintf(stderr, "%s: new_iblock->next_col = %u\n", FUNC, new_iblock->next_col); HDfprintf(stderr, "%s: new_iblock->next_size = %Zu\n", FUNC, new_iblock->next_size); HDfprintf(stderr, "%s: new_iblock->next_entry = %u\n", FUNC, new_iblock->next_entry); #endif /* QAK */ /* Release the current indirect block (possibly marked as dirty) */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_FHEAP_IBLOCK, iblock_addr, iblock, hdr_flags) < 0) HDONE_ERROR(H5E_HEAP, H5E_CANTUNPROTECT, NULL, "unable to release fractal heap indirect block") /* Switch variables to use new indirect block */ iblock = new_iblock; iblock_addr = new_iblock_addr; #ifdef QAK HDfprintf(stderr, "%s: new_iblock_addr = %a\n", FUNC, new_iblock_addr); #endif /* QAK */ } /* end while */ } /* end else */ /* Check for skipping over blocks */ if(min_dblock_size > iblock->next_size) { HDfprintf(stderr, "%s: Skipping direct block sizes not supported, iblock->next_size = %Zu\n", FUNC, iblock->next_size); HGOTO_ERROR(H5E_HEAP, H5E_UNSUPPORTED, NULL, "skipping direct block sizes not supported yet") } /* end if */ /* Set address of indirect block that's the immediate parent of new direct block */ *addr_p = iblock_addr; /* Set entry for new direct block to use */ *entry_p = iblock->next_entry; /* Set size of direct block to create */ *dblock_size = iblock->next_size; /* Increment location of next block from this indirect block */ if(H5HF_man_iblock_inc_loc(iblock) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTINC, NULL, "can't advance fractal heap block location") /* Set return value */ ret_value = iblock; done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5HF_man_iblock_place_dblock() */ /*------------------------------------------------------------------------- * Function: H5HF_man_iblock_alloc_range * * Purpose: Allocate a "single" section for an object, out of a "range" * section * * Note: Creates necessary direct & indirect blocks * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Mar 28 2006 * *------------------------------------------------------------------------- */ herr_t H5HF_man_iblock_alloc_range(H5HF_t *hdr, hid_t dxpl_id, H5HF_free_section_t **sec_node, size_t obj_size) { H5HF_indirect_t *iblock; /* Pointer to indirect block */ haddr_t iblock_addr; /* Indirect block's address */ haddr_t dblock_addr; /* Direct block's address */ unsigned iblock_nrows; /* Indirect block's number of rows */ H5HF_free_section_t *dblock_sec_node = NULL; /* Pointer to direct block's section node */ H5HF_free_section_t *old_sec_node = *sec_node; /* Pointer to old section node */ size_t full_obj_size; /* Size of object including metadata */ unsigned cur_entry; /* Current entry in indirect block */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5HF_man_iblock_alloc_range) /* * Check arguments. */ HDassert(hdr); HDassert(sec_node && *sec_node); HDassert(obj_size > 0); /* Compute info about range */ cur_entry = (old_sec_node->u.range.row * hdr->man_dtable.cparam.width) + old_sec_node->u.range.col; /* Check for range covering indirect blocks */ if(old_sec_node->u.range.row >= hdr->man_dtable.max_direct_rows) { HDfprintf(stderr, "%s: Can't handle range sections over indirect blocks yet\n", FUNC); HGOTO_ERROR(H5E_HEAP, H5E_UNSUPPORTED, FAIL, "'range' free space sections over indirect blocks not supported yet") } /* end if */ /* Get information about indirect block covering section */ /* (Allow for root indirect block being resized) */ iblock_addr = old_sec_node->u.range.iblock_addr; if(H5F_addr_eq(iblock_addr, hdr->man_dtable.table_addr)) iblock_nrows = hdr->man_dtable.curr_root_rows; else iblock_nrows = old_sec_node->u.range.iblock_nrows; /* Get a pointer to the indirect block covering the range */ if(NULL == (iblock = H5AC_protect(hdr->f, dxpl_id, H5AC_FHEAP_IBLOCK, iblock_addr, &iblock_nrows, hdr, H5AC_WRITE))) HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, FAIL, "unable to protect fractal heap indirect block") /* Compute size of object, with metadata overhead */ full_obj_size = obj_size + H5HF_MAN_ABS_DIRECT_OBJ_PREFIX_LEN(hdr); #ifdef QAK HDfprintf(stderr, "%s: cur_entry = %u\n", FUNC, cur_entry); HDfprintf(stderr, "%s: old_sec_node->u.range.num_entries = %u\n", FUNC, old_sec_node->u.range.num_entries); #endif /* QAK */ #ifdef QAK HDfprintf(stderr, "%s: hdr->man_dtable.row_block_size[old_sec_node->u.range.row] = %Hu\n", FUNC, hdr->man_dtable.row_block_size[old_sec_node->u.range.row]); HDfprintf(stderr, "%s: old_sec_node->sect_addr = %a\n", FUNC, old_sec_node->sect_addr); #endif /* QAK */ /* Create direct block of appropriate size */ if(H5HF_man_dblock_create(dxpl_id, hdr, iblock, cur_entry, (size_t)hdr->man_dtable.row_block_size[old_sec_node->u.range.row], (hsize_t)old_sec_node->sect_addr, &dblock_addr, &dblock_sec_node) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "can't allocate fractal heap direct block") /* Hook direct block up to indirect block */ iblock->ents[cur_entry].addr = dblock_addr; /* Check for only single block covered in range section */ if(old_sec_node->u.range.num_entries == 1) H5FL_FREE(H5HF_free_section_t, old_sec_node); else { /* Adjust section information */ old_sec_node->sect_addr += hdr->man_dtable.row_block_size[old_sec_node->u.range.row]; /* Adjust range information */ old_sec_node->u.range.col++; old_sec_node->u.range.num_entries--; /* Add section back to free space list */ if(H5HF_flist_add(hdr->flist, old_sec_node, &old_sec_node->sect_size, &old_sec_node->sect_addr) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTINIT, FAIL, "can't add indirect block free space to global list") } /* end else */ /* Release the indirect block (marked as dirty) */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_FHEAP_IBLOCK, iblock_addr, iblock, H5AC__DIRTIED_FLAG) < 0) HDONE_ERROR(H5E_HEAP, H5E_CANTUNPROTECT, FAIL, "unable to release fractal heap indirect block") /* Point 'sec_node' at new direct block section node */ *sec_node = dblock_sec_node; done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5HF_man_iblock_alloc_range() */ /*------------------------------------------------------------------------- * Function: H5HF_man_iblock_alloc_indirect * * Purpose: Allocate a "single" section for an object, out of an * "indirect" section, possibly creating "range" section as a * byproduct. * * Note: Creates necessary direct & indirect blocks * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Apr 4 2006 * *------------------------------------------------------------------------- */ herr_t H5HF_man_iblock_alloc_indirect(H5HF_t *hdr, hid_t dxpl_id, H5HF_free_section_t **sec_node, size_t obj_size) { H5HF_indirect_t *iblock; /* Pointer to indirect block */ H5HF_indirect_t *child_iblock; /* Pointer to child indirect block */ unsigned iblock_flags = H5AC__NO_FLAGS_SET; /* Metadata cache flags for parent indirect block */ haddr_t iblock_addr; /* Indirect block's address */ haddr_t child_iblock_addr; /* Address of child indirect block */ haddr_t dblock_addr; /* New direct block's address */ unsigned iblock_nrows; /* Indirect block's number of rows */ H5HF_free_section_t *dblock_sec_node = NULL; /* Pointer to direct block's section node */ H5HF_free_section_t *range_sec_node = NULL; /* Pointer to new range section node */ H5HF_free_section_t *old_sec_node = *sec_node; /* Pointer to old indirect section node */ unsigned curr_entry; /* Current entry in indirect block */ unsigned dblock_entry; /* Entry of direct block in child indirect block */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5HF_man_iblock_alloc_indirect) /* * Check arguments. */ HDassert(hdr); HDassert(sec_node && *sec_node); HDassert(obj_size > 0); /* Compute info about range */ curr_entry = (old_sec_node->u.indirect.row * hdr->man_dtable.cparam.width) + old_sec_node->u.indirect.col; /* Get information about indirect block covering section */ /* (Allow for root indirect block being resized) */ iblock_addr = old_sec_node->u.indirect.iblock_addr; if(H5F_addr_eq(iblock_addr, hdr->man_dtable.table_addr)) iblock_nrows = hdr->man_dtable.curr_root_rows; else iblock_nrows = old_sec_node->u.indirect.iblock_nrows; /* Get a pointer to the indirect block covering the range */ if(NULL == (iblock = H5AC_protect(hdr->f, dxpl_id, H5AC_FHEAP_IBLOCK, iblock_addr, &iblock_nrows, hdr, H5AC_WRITE))) HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, FAIL, "unable to protect fractal heap indirect block") #ifdef QAK HDfprintf(stderr, "%s: curr_entry = %u\n", FUNC, curr_entry); HDfprintf(stderr, "%s: iblock->ents[curr_entry].addr = %a\n", FUNC, iblock->ents[curr_entry].addr); HDfprintf(stderr, "%s: iblock->ents[curr_entry].free_space = %Hu\n", FUNC, iblock->ents[curr_entry].free_space); HDfprintf(stderr, "%s: old_sec_node->u.indirect.indir_nrows = %u\n", FUNC, old_sec_node->u.indirect.indir_nrows); HDfprintf(stderr, "%s: old_sec_node->u.indirect.num_entries = %u\n", FUNC, old_sec_node->u.indirect.num_entries); #endif /* QAK */ /* Check if indirect block for this indirect section has already been created */ if(H5F_addr_defined(iblock->ents[curr_entry].addr)) { /* Look up existing child indirect block */ child_iblock_addr = iblock->ents[curr_entry].addr; if(NULL == (child_iblock = H5AC_protect(hdr->f, dxpl_id, H5AC_FHEAP_IBLOCK, child_iblock_addr, &old_sec_node->u.indirect.indir_nrows, hdr, H5AC_WRITE))) HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, FAIL, "unable to protect fractal heap indirect block") } /* end if */ else { hsize_t new_iblock_off; /* Offset of new indirect block */ /* Compute heap offset of new indirect block */ new_iblock_off = iblock->block_off + hdr->man_dtable.row_block_off[old_sec_node->u.indirect.row] + (old_sec_node->u.indirect.col * hdr->man_dtable.row_block_size[old_sec_node->u.indirect.row]); #ifdef QAK HDfprintf(stderr, "%s: iblock->block_off = %Hu\n", FUNC, iblock->block_off); HDfprintf(stderr, "%s: new_iblock_off = %Hu\n", FUNC, new_iblock_off); #endif /* QAK */ /* Create child indirect block */ if(H5HF_man_iblock_create(hdr, dxpl_id, new_iblock_off, old_sec_node->u.indirect.indir_nrows, old_sec_node->u.indirect.indir_nrows, &child_iblock_addr) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "can't allocate fractal heap indirect block") /* Lock new child indirect block */ if(NULL == (child_iblock = H5AC_protect(hdr->f, dxpl_id, H5AC_FHEAP_IBLOCK, child_iblock_addr, &old_sec_node->u.indirect.indir_nrows, hdr, H5AC_WRITE))) HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, FAIL, "unable to protect fractal heap indirect block") /* Set parent information */ HDassert(child_iblock->parent == NULL); child_iblock->parent = iblock; child_iblock->par_entry = curr_entry; child_iblock->par_nrows = iblock->nrows; child_iblock->par_addr = iblock->addr; if(H5HF_iblock_incr(iblock) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTINC, FAIL, "can't increment reference count on shared indirect block") #ifdef QAK HDfprintf(stderr, "%s: child_iblock->child_free_space = %Hu\n", FUNC, child_iblock->child_free_space); #endif /* QAK */ /* Hook child up to parent indirect block */ iblock->ents[curr_entry].addr = child_iblock_addr; HDassert(iblock->ents[curr_entry].free_space == child_iblock->child_free_space); /* Mark parent indirect block as modified */ if(H5HF_iblock_dirty(dxpl_id, iblock) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTDIRTY, FAIL, "can't mark indirect block as dirty") /* Set dirty flag for the parent indirect block */ iblock_flags |= H5AC__DIRTIED_FLAG; } /* end else */ /* Compute entry for new direct block in child indirect block */ dblock_entry = old_sec_node->u.indirect.indir_row * hdr->man_dtable.cparam.width; /* Create direct block of correct size */ #ifdef QAK HDfprintf(stderr, "%s: old_sec_node->u.indirect.indir_row = %u\n", FUNC, old_sec_node->u.indirect.indir_row); HDfprintf(stderr, "%s: hdr->man_dtable.row_block_size[old_sec_node->u.indirect.indir_row] = %Hu\n", FUNC, hdr->man_dtable.row_block_size[old_sec_node->u.indirect.indir_row]); HDfprintf(stderr, "%s: old_sec_node->sect_addr = %a\n", FUNC, old_sec_node->sect_addr); #endif /* QAK */ if(H5HF_man_dblock_create(dxpl_id, hdr, child_iblock, dblock_entry, (size_t)hdr->man_dtable.row_block_size[old_sec_node->u.indirect.indir_row], (hsize_t)old_sec_node->sect_addr, &dblock_addr, &dblock_sec_node) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "can't allocate fractal heap direct block") /* Hook direct block up to child indirect block */ child_iblock->ents[dblock_entry].addr = dblock_addr; /* Create "range" section for other direct blocks in row of child indirect block */ /* Create free list section node for blocks skipped over */ if(NULL == (range_sec_node = H5FL_MALLOC(H5HF_free_section_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for direct block free list section") /* Set section's information */ range_sec_node->sect_addr = child_iblock->block_off + hdr->man_dtable.row_block_off[old_sec_node->u.indirect.indir_row] + hdr->man_dtable.row_block_size[old_sec_node->u.indirect.indir_row]; range_sec_node->sect_size = old_sec_node->sect_size; range_sec_node->type = H5HF_SECT_RANGE; range_sec_node->u.range.iblock_addr = child_iblock_addr; range_sec_node->u.range.iblock_nrows = child_iblock->nrows; range_sec_node->u.range.row = old_sec_node->u.indirect.indir_row; range_sec_node->u.range.col = 1; range_sec_node->u.range.num_entries = hdr->man_dtable.cparam.width - 1; /* Add new free space to the global list of space */ if(H5HF_flist_add(hdr->flist, range_sec_node, &range_sec_node->sect_size, &range_sec_node->sect_addr) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTINIT, FAIL, "can't add indirect block free space to global list") /* Reduce "indirect" section */ /* Check for only single block covered in range section */ if(old_sec_node->u.indirect.num_entries == 1) H5FL_FREE(H5HF_free_section_t, old_sec_node); else { /* Adjust section information */ old_sec_node->sect_addr += hdr->man_dtable.row_block_size[old_sec_node->u.indirect.row]; /* Adjust range information */ old_sec_node->u.indirect.col++; old_sec_node->u.indirect.num_entries--; /* Add section back to free space list */ if(H5HF_flist_add(hdr->flist, old_sec_node, &old_sec_node->sect_size, &old_sec_node->sect_addr) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTINIT, FAIL, "can't add indirect block free space to global list") } /* end else */ /* Release the child indirect block (marked as dirty) */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_FHEAP_IBLOCK, child_iblock_addr, child_iblock, H5AC__DIRTIED_FLAG) < 0) HDONE_ERROR(H5E_HEAP, H5E_CANTUNPROTECT, FAIL, "unable to release fractal heap indirect block") /* Release the parent indirect block (possibly dirty) */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_FHEAP_IBLOCK, iblock_addr, iblock, iblock_flags) < 0) HDONE_ERROR(H5E_HEAP, H5E_CANTUNPROTECT, FAIL, "unable to release fractal heap indirect block") /* Point 'sec_node' at new direct block section node */ *sec_node = dblock_sec_node; done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5HF_man_iblock_alloc_indirect() */ /*------------------------------------------------------------------------- * Function: H5HF_man_iblock_create * * Purpose: Allocate & initialize a managed indirect block * * Return: SUCCEED/FAIL * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Mar 6 2006 * *------------------------------------------------------------------------- */ static herr_t H5HF_man_iblock_create(H5HF_t *hdr, hid_t dxpl_id, hsize_t block_off, unsigned nrows, unsigned max_rows, haddr_t *addr_p) { H5HF_indirect_t *iblock = NULL; /* Pointer to indirect block */ size_t curr_row; /* Current row within indirect block */ size_t u, v; /* Local index variable */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5HF_man_iblock_create) /* * Check arguments. */ HDassert(hdr); HDassert(nrows > 0); HDassert(addr_p); /* * Allocate file and memory data structures. */ if(NULL == (iblock = H5FL_MALLOC(H5HF_indirect_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for fractal heap indirect block") /* Reset the metadata cache info for the heap header */ HDmemset(&iblock->cache_info, 0, sizeof(H5AC_info_t)); /* Share common heap information */ iblock->shared = hdr; if(H5HF_hdr_incr(hdr) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTINC, FAIL, "can't increment reference count on shared heap header") #ifdef QAK HDfprintf(stderr, "%s: nrows = %u, max_nrows = %u\n", FUNC, nrows, max_nrows); #endif /* QAK */ /* Set info for direct block */ iblock->rc = 0; iblock->parent = NULL; /* Temporary, except for root indirect block */ iblock->par_entry = 0; iblock->par_nrows = 0; iblock->par_addr = HADDR_UNDEF; iblock->block_off = block_off; iblock->nrows = nrows; iblock->max_rows = max_rows; iblock->next_col = 0; iblock->next_row = 0; iblock->next_entry = 0; iblock->next_size = hdr->man_dtable.cparam.start_block_size; iblock->dirty = TRUE; iblock->evicted = FALSE; /* Compute size of buffer needed for indirect block */ iblock->size = H5HF_MAN_INDIRECT_SIZE(hdr, iblock); /* Allocate indirect block entry tables */ if(NULL == (iblock->ents = H5FL_SEQ_MALLOC(H5HF_indirect_ent_t, (iblock->nrows * hdr->man_dtable.cparam.width)))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for block entries") /* Initialize indirect block entry tables */ curr_row = 0; iblock->child_free_space = 0; for(u = 0; u < (iblock->nrows * hdr->man_dtable.cparam.width); /* u advanced in inner loop */) { for(v = 0; v < hdr->man_dtable.cparam.width; v++, u++) { iblock->ents[u].addr = HADDR_UNDEF; iblock->ents[u].free_space = hdr->man_dtable.row_dblock_free[curr_row]; iblock->child_free_space += iblock->ents[u].free_space; } /* end for */ curr_row++; } /* end for */ /* Allocate space for the indirect block on disk */ if(HADDR_UNDEF == (*addr_p = H5MF_alloc(hdr->f, H5FD_MEM_FHEAP_IBLOCK, dxpl_id, (hsize_t)iblock->size))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "file allocation failed for fractal heap indirect block") iblock->addr = *addr_p; /* XXX: Update indirect statistics when they are added */ /* Cache the new fractal heap header */ if(H5AC_set(hdr->f, dxpl_id, H5AC_FHEAP_IBLOCK, *addr_p, iblock, H5AC__NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTINIT, FAIL, "can't add fractal heap indirect block to cache") done: if(ret_value < 0) if(iblock) (void)H5HF_cache_iblock_dest(hdr->f, iblock); FUNC_LEAVE_NOAPI(ret_value) } /* end H5HF_man_iblock_create() */