/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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: H5HFint.c * Feb 24 2006 * Quincey Koziol * * Purpose: "Internal" 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 "H5MMprivate.h" /* Memory management */ #include "H5Vprivate.h" /* Vectors and arrays */ /****************/ /* Local Macros */ /****************/ /* Limit on the size of the max. direct block size */ /* (This is limited to 32-bits currently, because I think it's unlikely to * need to be larger, the 32-bit limit for H5V_log2_of2(n), and * some offsets/sizes are encoded with a maxiumum of 32-bits - QAK) */ #define H5HL_MAX_DIRECT_SIZE_LIMIT ((hsize_t)2 * 1024 * 1024 * 1024) /******************/ /* Local Typedefs */ /******************/ /********************/ /* Package Typedefs */ /********************/ /* Direct block free list section node */ struct H5HF_section_free_node_t { haddr_t sect_addr; /* Address of free list section in the file */ /* (Not actually used as address, used as unique ID for free list node) */ haddr_t block_addr; /* Address of direct block for free section */ size_t sect_size; /* Size of free space section */ /* (section size is "object size", without the metadata overhead, since metadata overhead varies from block to block) */ size_t block_size; /* Size of direct block */ /* (Needed to retrieve direct block) */ }; /********************/ /* Local Prototypes */ /********************/ /* Doubling table routines */ static herr_t H5HF_dtable_init(const H5HF_shared_t *shared, H5HF_dtable_t *dtable); static herr_t H5HF_dtable_lookup(const H5HF_dtable_t *dtable, hsize_t off, unsigned *row, unsigned *col); /* Shared heap header routines */ static herr_t H5HF_shared_free(void *_shared); /* Direct block routines */ static herr_t H5HF_dblock_section_node_free_cb(void *item, void UNUSED *key, void UNUSED *op_data); static herr_t H5HF_man_dblock_create(H5HF_parent_shared_t *par_shared, hid_t dxpl_id, size_t block_size, hsize_t block_off, haddr_t *addr_p); static herr_t H5HF_man_dblock_new(H5RC_t *fh_shared, hid_t dxpl_id, size_t request); static herr_t H5HF_man_dblock_adj_free(H5HF_direct_t *dblock, ssize_t amt); /* Indirect block routines */ static herr_t H5HF_man_iblock_inc_loc(H5HF_indirect_t *iblock); static H5HF_indirect_t * H5HF_man_iblock_place_dblock(H5RC_t *fh_shared, hid_t dxpl_id, size_t min_dblock_size, haddr_t *addr_p, size_t *entry_p, size_t *dblock_size); static herr_t H5HF_man_iblock_create(H5RC_t *fh_shared, hid_t dxpl_id, hsize_t block_off, unsigned nrows, unsigned max_dir_rows, haddr_t *addr_p); /*********************/ /* Package Variables */ /*********************/ /* Declare a free list to manage the H5HF_direct_t struct */ H5FL_DEFINE(H5HF_direct_t); /* Declare a free list to manage the H5HF_direct_free_head_t struct */ H5FL_DEFINE(H5HF_direct_free_head_t); /* Declare a free list to manage the H5HF_direct_free_node_t struct */ H5FL_DEFINE(H5HF_direct_free_node_t); /* Declare a free list to manage the H5HF_section_free_node_t struct */ H5FL_DEFINE(H5HF_section_free_node_t); /* 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_dblock_ent_t sequence information */ H5FL_SEQ_DEFINE(H5HF_indirect_dblock_ent_t); /* Declare a free list to manage the H5HF_indirect_iblock_ent_t sequence information */ H5FL_SEQ_DEFINE(H5HF_indirect_iblock_ent_t); /*****************************/ /* Library Private Variables */ /*****************************/ /*******************/ /* Local Variables */ /*******************/ /* Declare a free list to manage the H5HF_shared_t struct */ H5FL_DEFINE_STATIC(H5HF_shared_t); /*------------------------------------------------------------------------- * Function: H5HF_dtable_init * * Purpose: Initialize values for doubling table * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Mar 6 2006 * *------------------------------------------------------------------------- */ static herr_t H5HF_dtable_init(const H5HF_shared_t *shared, H5HF_dtable_t *dtable) { hsize_t tmp_block_size; /* Temporary block size */ size_t u; /* Local index variable */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5HF_dtable_init) /* * Check arguments. */ HDassert(shared); HDassert(dtable); /* Compute/cache some values */ dtable->first_row_bits = H5V_log2_of2(dtable->cparam.start_block_size) + H5V_log2_of2(dtable->cparam.width); dtable->max_root_indirect_rows = (dtable->cparam.max_index - dtable->first_row_bits) + 1; dtable->max_direct_rows = (H5V_log2_of2(dtable->cparam.max_direct_size) - H5V_log2_of2(dtable->cparam.start_block_size)) + 2; dtable->num_id_first_row = dtable->cparam.start_block_size * dtable->cparam.width; dtable->max_dir_blk_off_size = H5HF_SIZEOF_OFFSET_LEN(dtable->cparam.max_direct_size); /* Build table of block sizes for each row */ if(NULL == (dtable->row_block_size = H5MM_malloc(dtable->max_root_indirect_rows * sizeof(hsize_t)))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "can't create doubling table block size table") tmp_block_size = dtable->cparam.start_block_size; dtable->row_block_size[0] = dtable->cparam.start_block_size; for(u = 1; u < dtable->max_root_indirect_rows; u++) { dtable->row_block_size[u] = tmp_block_size; tmp_block_size *= 2; } /* end for */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5HF_dtable_init() */ /*------------------------------------------------------------------------- * Function: H5HF_dtable_lookup * * Purpose: Compute the row & col of an offset in a doubling-table * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Mar 6 2006 * *------------------------------------------------------------------------- */ static herr_t H5HF_dtable_lookup(const H5HF_dtable_t *dtable, hsize_t off, unsigned *row, unsigned *col) { FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5HF_dtable_lookup) /* * Check arguments. */ HDassert(dtable); HDassert(row); HDassert(col); /* Check for offset in first row */ if(off < dtable->num_id_first_row) { *row = 0; *col = off / dtable->cparam.start_block_size; } /* end if */ else { unsigned high_bit = H5V_log2_gen(off); /* Determine the high bit in the offset */ hsize_t off_mask = 1 << high_bit; /* Compute mask for determining column */ *row = (high_bit - dtable->first_row_bits) + 1; *col = (off - off_mask) / dtable->row_block_size[*row]; } /* end else */ FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5HF_dtable_lookup() */ /*------------------------------------------------------------------------- * Function: H5HF_shared_alloc * * Purpose: Allocate shared fractal heap info * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Feb 27 2006 * *------------------------------------------------------------------------- */ H5HF_shared_t * H5HF_shared_alloc(H5F_t *f) { H5HF_shared_t *shared = NULL; /* Shared fractal heap information */ H5HF_shared_t *ret_value = NULL; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5HF_shared_alloc) /* * Check arguments. */ HDassert(f); /* Allocate space for the shared information */ if(NULL == (shared = H5FL_CALLOC(H5HF_shared_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for fractal heap shared information") /* Set the internal parameters for the heap */ shared->f = f; /* Set the return value */ ret_value = shared; done: if(!ret_value) if(shared) H5HF_shared_free(shared); FUNC_LEAVE_NOAPI(ret_value) } /* end H5HF_shared_alloc() */ /*------------------------------------------------------------------------- * Function: H5HF_shared_own * * Purpose: Have heap take ownership of the shared info * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Feb 27 2006 * *------------------------------------------------------------------------- */ herr_t H5HF_shared_own(H5HF_t *fh, H5HF_shared_t *shared) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5HF_shared_own) /* * Check arguments. */ HDassert(fh); HDassert(shared); /* Compute/cache some values */ shared->ref_count_obj = (shared->ref_count_size > 0); shared->heap_off_size = H5HF_SIZEOF_OFFSET_BITS(shared->man_dtable.cparam.max_index); if(H5HF_dtable_init(shared, &shared->man_dtable) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTINIT, FAIL, "can't initialize doubling table info") /* Create the free-list structure for the heap */ if(NULL == (shared->flist = H5HF_flist_create(shared->man_dtable.cparam.max_direct_size, H5HF_dblock_section_node_free_cb))) HGOTO_ERROR(H5E_HEAP, H5E_CANTINIT, FAIL, "can't initialize free list info") /* Make shared heap info reference counted */ if(NULL == (fh->shared = H5RC_create(shared, H5HF_shared_free))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "can't create ref-count wrapper for shared fractal heap info") done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5HF_shared_own() */ /*------------------------------------------------------------------------- * Function: H5HF_shared_create * * Purpose: Allocate & create shared fractal heap info for new heap * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Feb 24 2006 * *------------------------------------------------------------------------- */ herr_t H5HF_shared_create(H5F_t *f, H5HF_t *fh, haddr_t fh_addr, H5HF_create_t *cparam) { H5HF_shared_t *shared = NULL; /* Shared fractal heap information */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5HF_shared_create) /* * Check arguments. */ HDassert(f); HDassert(fh); HDassert(cparam); #ifndef NDEBUG /* Check for valid parameters */ if(!POWER_OF_TWO(cparam->managed.width) || cparam->managed.width == 0) HGOTO_ERROR(H5E_HEAP, H5E_BADVALUE, FAIL, "width not power of two") if(!POWER_OF_TWO(cparam->managed.start_block_size) || cparam->managed.start_block_size == 0) HGOTO_ERROR(H5E_HEAP, H5E_BADVALUE, FAIL, "starting block size not power of two") if(!POWER_OF_TWO(cparam->managed.max_direct_size) || (cparam->managed.max_direct_size == 0 || cparam->managed.max_direct_size > H5HL_MAX_DIRECT_SIZE_LIMIT)) HGOTO_ERROR(H5E_HEAP, H5E_BADVALUE, FAIL, "max. direct block size not power of two") if(cparam->managed.max_direct_size < cparam->standalone_size) HGOTO_ERROR(H5E_HEAP, H5E_BADVALUE, FAIL, "max. direct block size not large enough to hold all managed blocks") if(cparam->managed.max_index > (8 * H5F_SIZEOF_SIZE(f)) || cparam->managed.max_index == 0) HGOTO_ERROR(H5E_HEAP, H5E_BADVALUE, FAIL, "max. direct block size not power of two") #endif /* NDEBUG */ /* Allocate & basic initialization for the shared info struct */ if(NULL == (shared = H5HF_shared_alloc(f))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "can't allocate space for shared heap info") /* Set the creation parameters for the heap */ shared->heap_addr = fh_addr; shared->addrmap = cparam->addrmap; shared->standalone_size = cparam->standalone_size; shared->ref_count_size = cparam->ref_count_size; HDmemcpy(&(shared->man_dtable.cparam), &(cparam->managed), sizeof(H5HF_dtable_cparam_t)); /* Set root table address */ shared->man_dtable.table_addr = HADDR_UNDEF; /* Note that the shared info is dirty (it's not written to the file yet) */ shared->dirty = TRUE; /* Make shared heap info reference counted */ if(H5HF_shared_own(fh, shared) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "can't create ref-count wrapper for shared fractal heap info") done: if(ret_value < 0) if(shared) H5HF_shared_free(shared); FUNC_LEAVE_NOAPI(ret_value) } /* end H5HF_shared_create() */ /*------------------------------------------------------------------------- * Function: H5HF_shared_free * * Purpose: Free shared fractal heap info * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Feb 24 2006 * *------------------------------------------------------------------------- */ static herr_t H5HF_shared_free(void *_shared) { H5HF_shared_t *shared = (H5HF_shared_t *)_shared; FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5HF_shared_free) /* Sanity check */ HDassert(shared); /* Free the free list information for the heap */ if(shared->flist) H5HF_flist_free(shared->flist); /* Free the block size lookup table for the doubling table */ H5MM_xfree(shared->man_dtable.row_block_size); /* Free the shared info itself */ H5FL_FREE(H5HF_shared_t, shared); FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5HF_shared_free() */ /*------------------------------------------------------------------------- * 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) { H5HF_shared_t *shared; /* Pointer to shared heap info */ FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5HF_man_iblock_inc_loc) /* * Check arguments. */ HDassert(iblock); /* Get the pointer to the shared heap info */ shared = H5RC_GET_OBJ(iblock->shared); HDassert(shared); /* Increment column */ iblock->next_dir_col++; /* Check for walking off end of column */ if(iblock->next_dir_col == shared->man_dtable.cparam.width) { /* Reset column */ iblock->next_dir_col = 0; /* Increment row & direct block size */ iblock->next_dir_row++; iblock->next_dir_size *= 2; /* Check for filling up all direct block entries in indirect block */ if(iblock->next_dir_row == iblock->max_direct_rows) iblock->dir_full = TRUE; } /* end if */ #ifdef QAK HDfprintf(stderr, "%s: iblock->next_dir_row = %u\n", "H5HF_man_iblock_inc_loc", iblock->next_dir_row); HDfprintf(stderr, "%s: iblock->next_dir_col = %u\n", "H5HF_man_iblock_inc_loc", iblock->next_dir_col); HDfprintf(stderr, "%s: iblock->next_dir_size = %Zu\n", "H5HF_man_iblock_inc_loc", iblock->next_dir_size); HDfprintf(stderr, "%s: iblock->dir_full = %u\n", "H5HF_man_iblock_inc_loc", (unsigned)iblock->dir_full); #endif /* QAK */ /* Mark heap header as modified */ shared->dirty = TRUE; FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5HF_man_iblock_inc_loc() */ /*------------------------------------------------------------------------- * Function: H5HF_man_dblock_create * * Purpose: Allocate & initialize a managed direct block * * Return: Pointer to new direct block on success, NULL on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Feb 27 2006 * *------------------------------------------------------------------------- */ static herr_t H5HF_man_dblock_create(H5HF_parent_shared_t *par_shared, hid_t dxpl_id, size_t block_size, hsize_t block_off, haddr_t *addr_p) { H5HF_direct_free_node_t *node; /* Pointer to free list node for block */ H5HF_section_free_node_t *sec_node; /* Pointer to free list section for block */ H5HF_shared_t *shared; /* Pointer to shared heap info */ H5HF_direct_t *dblock = NULL; /* Pointer to direct block */ size_t free_space; /* Free space in new block */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5HF_man_dblock_create) /* * Check arguments. */ HDassert(par_shared); HDassert(par_shared->shared); HDassert(block_size > 0); HDassert(addr_p); /* * Allocate file and memory data structures. */ if(NULL == (dblock = H5FL_MALLOC(H5HF_direct_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for fractal heap direct block") /* Reset the metadata cache info for the heap header */ HDmemset(&dblock->cache_info, 0, sizeof(H5AC_info_t)); /* Share common heap information */ dblock->shared = par_shared->shared; H5RC_INC(dblock->shared); /* Get the pointer to the shared heap info */ shared = H5RC_GET_OBJ(dblock->shared); HDassert(shared); /* Set info for direct block */ #ifdef QAK HDfprintf(stderr, "%s: size = %Zu, block_off = %Hu\n", FUNC, block_size, block_off); #endif /* QAK */ dblock->parent = par_shared->parent; if(dblock->parent) H5RC_INC(dblock->parent); dblock->parent_entry = par_shared->parent_entry; dblock->size = block_size; dblock->block_off = block_off; dblock->blk_off_size = H5HF_SIZEOF_OFFSET_LEN(block_size); dblock->free_list_head = H5HF_MAN_ABS_DIRECT_OVERHEAD_DBLOCK(shared, dblock); dblock->blk_free_space = par_shared->parent_free_space; free_space = block_size - dblock->free_list_head; /* Allocate buffer for block */ /* XXX: Change to using free-list factories */ if((dblock->blk = H5FL_BLK_MALLOC(direct_block, block_size)) == NULL) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed") #ifdef H5_USING_PURIFY HDmemset(dblock->blk, 0, dblock->size); #endif /* H5_USING_PURIFY */ /* Set up free list head */ if(NULL == (dblock->free_list = H5FL_MALLOC(H5HF_direct_free_head_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for direct block free list head") dblock->free_list->dirty = TRUE; /* Set up free list node for all unused space in block */ if(NULL == (node = H5FL_MALLOC(H5HF_direct_free_node_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for direct block free list node") /* Set node's information */ node->size = free_space; node->my_offset = dblock->free_list_head; node->next_offset = 0; node->prev = node->next = NULL; /* Attach to free list head */ /* XXX: Convert this list to a skip list? */ dblock->free_list->first = node; /* Allocate space for the header on disk */ if(HADDR_UNDEF == (*addr_p = H5MF_alloc(shared->f, H5FD_MEM_FHEAP_DBLOCK, dxpl_id, (hsize_t)block_size))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "file allocation failed for fractal heap direct block") /* Create free list section node */ if(NULL == (sec_node = H5FL_MALLOC(H5HF_section_free_node_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for direct block free list section") /* Set section's information */ sec_node->block_addr = *addr_p; sec_node->block_size = block_size; sec_node->sect_addr = *addr_p + node->my_offset; /* (section size is "object size", without the metadata overhead) */ sec_node->sect_size = node->size - H5HF_MAN_ABS_DIRECT_OBJ_PREFIX_LEN_DBLOCK(shared, dblock); /* Add new free space to the global list of space */ if(H5HF_flist_add(shared->flist, sec_node, &sec_node->sect_size, &sec_node->sect_addr) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTINIT, FAIL, "can't add direct block free space to global list") /* Adjust free space to include new block's space */ if(H5HF_man_dblock_adj_free(dblock, (ssize_t)free_space) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTDEC, FAIL, "can't adjust free space for direct block & parents") /* Update shared heap info */ shared->total_size += dblock->size; shared->man_size += dblock->size; /* Mark heap header as modified */ shared->dirty = TRUE; /* Cache the new fractal heap direct block */ if(H5AC_set(shared->f, dxpl_id, H5AC_FHEAP_DBLOCK, *addr_p, dblock, H5AC__NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTINIT, FAIL, "can't add fractal heap direct block to cache") done: if(ret_value < 0) if(dblock) (void)H5HF_cache_dblock_dest(shared->f, dblock); FUNC_LEAVE_NOAPI(ret_value) } /* end H5HF_man_dblock_create() */ /*------------------------------------------------------------------------- * Function: H5HF_dblock_section_node_free_cb * * Purpose: Free a section node for a block * * Return: Success: non-negative * * Failure: negative * * Programmer: Quincey Koziol * Monday, March 13, 2006 * *------------------------------------------------------------------------- */ static herr_t H5HF_dblock_section_node_free_cb(void *item, void UNUSED *key, void UNUSED *op_data) { FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5HF_dblock_section_node_free_cb) HDassert(item); /* Release the sections */ H5FL_FREE(H5HF_section_free_node_t, item); FUNC_LEAVE_NOAPI(0) } /* H5HF_dblock_section_node_free_cb() */ /*------------------------------------------------------------------------- * Function: H5HF_man_dblock_build_freelist * * Purpose: Parse the free list information for a direct block and build * block's free list * * Return: SUCCEED/FAIL * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Feb 28 2006 * *------------------------------------------------------------------------- */ herr_t H5HF_man_dblock_build_freelist(H5HF_direct_t *dblock, haddr_t dblock_addr) { H5HF_direct_free_head_t *head = NULL; /* Pointer to free list head for block */ H5HF_shared_t *shared; /* Pointer to shared heap info */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5HF_man_dblock_build_freelist) /* * Check arguments. */ HDassert(dblock); /* Allocate head of list */ if(NULL == (head = H5FL_MALLOC(H5HF_direct_free_head_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for direct block free list head") head->dirty = FALSE; /* Check for any nodes on free list */ if(dblock->free_list_head == 0) head->first = NULL; else { H5HF_section_free_node_t *sec_node; /* Pointer to free list section for block */ H5HF_direct_free_node_t *node = NULL; /* Pointer to free list node for block */ H5HF_direct_free_node_t *prev_node; /* Pointer to previous free list node for block */ hsize_t free_len; /* Length of free list info */ hsize_t next_off; /* Next node offset in block */ hsize_t prev_off; /* Prev node offset in block */ uint8_t *p; /* Temporary pointer to free node info */ /* Get the pointer to the shared heap info */ shared = H5RC_GET_OBJ(dblock->shared); HDassert(shared); /* Point to first node in free list */ p = dblock->blk + dblock->free_list_head; /* Decode information for first node on free list */ UINT64DECODE_VAR(p, free_len, dblock->blk_off_size); UINT64DECODE_VAR(p, next_off, dblock->blk_off_size); /* Allocate node on list */ if(NULL == (node = H5FL_MALLOC(H5HF_direct_free_node_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for direct block free list node") /* Set node's information */ node->size = free_len; node->my_offset = dblock->free_list_head; node->next_offset = next_off; node->prev = node->next = NULL; /* Attach to free list head */ head->first = node; /* Set block's free space */ dblock->blk_free_space = free_len; /* Create free list section node */ if(NULL == (sec_node = H5FL_MALLOC(H5HF_section_free_node_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for direct block free list section") /* Set section's information */ sec_node->block_addr = dblock_addr; sec_node->block_size = dblock->size; sec_node->sect_addr = dblock_addr + node->my_offset; /* (section size is "object size", without the metadata overhead) */ sec_node->sect_size = node->size - H5HF_MAN_ABS_DIRECT_OBJ_PREFIX_LEN_DBLOCK(shared, dblock); /* Add new free space to the global list of space */ if(H5HF_flist_add(shared->flist, sec_node, &sec_node->sect_size, &sec_node->sect_addr) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTINIT, FAIL, "can't add direct block free space to global list") /* Set up trailing node pointer */ prev_node = node; prev_off = next_off; /* Bring in rest of node on free list */ while(next_off != 0) { /* Point to first node in free list */ p = dblock->blk + next_off; /* Decode information for first node on free list */ UINT64DECODE_VAR(p, free_len, dblock->blk_off_size); UINT64DECODE_VAR(p, next_off, dblock->blk_off_size); /* Allocate node on list */ if(NULL == (node = H5FL_MALLOC(H5HF_direct_free_node_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for direct block free list node") /* Set node's information */ node->size = free_len; node->my_offset = prev_off; node->next_offset = next_off; node->prev = prev_node; node->next = NULL; /* Adjust block's free space */ dblock->blk_free_space += free_len; /* Create free list section node */ if(NULL == (sec_node = H5FL_MALLOC(H5HF_section_free_node_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for direct block free list section") /* Set section's information */ sec_node->block_addr = dblock_addr; sec_node->block_size = dblock->size; sec_node->sect_addr = dblock_addr + node->my_offset; /* (section size is "object size", without the metadata overhead) */ sec_node->sect_size = node->size - H5HF_MAN_ABS_DIRECT_OBJ_PREFIX_LEN_DBLOCK(shared, dblock); /* Add new free space to the global list of space */ if(H5HF_flist_add(shared->flist, sec_node, &sec_node->sect_size, &sec_node->sect_addr) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTINIT, FAIL, "can't add direct block free space to global list") /* Update trailing info */ prev_node->next = node; prev_off = next_off; /* Advance to next node */ prev_node = node; } /* end while */ } /* end else */ /* Assign free list head to block */ dblock->free_list = head; done: /* XXX: cleanup on failure? */ FUNC_LEAVE_NOAPI(ret_value) } /* end H5HF_man_dblock_build_freelist() */ /*------------------------------------------------------------------------- * Function: H5HF_man_dblock_adj_free * * Purpose: Adjust the free space for a direct block, and it's parents * * Return: SUCCEED/FAIL * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Mar 14 2006 * *------------------------------------------------------------------------- */ static herr_t H5HF_man_dblock_adj_free(H5HF_direct_t *dblock, ssize_t amt) { H5HF_shared_t *shared; /* Shared heap information */ FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5HF_man_dblock_adj_free) #ifdef QAK HDfprintf(stderr, "%s: amt = %Zd\n", "H5HF_man_dblock_adj_free", amt); #endif /* QAK */ /* * Check arguments. */ HDassert(dblock); /* Get the pointer to the shared heap info */ shared = H5RC_GET_OBJ(dblock->shared); HDassert(shared); /* Adjust space available in block */ dblock->blk_free_space += amt; /* Check if the parent info is set */ if(dblock->parent) { H5HF_indirect_t *iblock; /* Block's parent */ /* Get the pointer to the shared parent indirect block */ iblock = H5RC_GET_OBJ(dblock->parent); HDassert(iblock); /* Adjust this indirect block's child free space */ #ifdef QAK HDfprintf(stderr, "%s: iblock->child_free_space = %Hu\n", "H5HF_man_dblock_adj_free", iblock->child_free_space); #endif /* QAK */ iblock->dblock_ents[dblock->parent_entry].free_space += amt; iblock->child_free_space += amt; /* Mark indirect block as dirty */ iblock->dirty = TRUE; /* Modify the free space in parent block(s) */ while(iblock->parent) { size_t parent_entry; /* Entry in parent */ /* Get the pointer to the shared parent indirect block */ parent_entry = iblock->parent_entry; iblock = H5RC_GET_OBJ(iblock->parent); HDassert(iblock); /* Adjust this indirect block's child free space */ iblock->iblock_ents[parent_entry].free_space += amt; iblock->child_free_space += amt; /* Mark indirect block as dirty */ iblock->dirty = TRUE; } /* end while */ } /* end if */ /* Update shared heap free space info */ shared->total_man_free += amt; /* Mark heap header as modified */ shared->dirty = TRUE; FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5HF_man_dblock_adj_free() */ /*------------------------------------------------------------------------- * Function: H5HF_man_dblock_new * * Purpose: Create a direct block large enough to hold an object of * the requested size * * Return: SUCCEED/FAIL * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Mar 13 2006 * *------------------------------------------------------------------------- */ static herr_t H5HF_man_dblock_new(H5RC_t *fh_shared, hid_t dxpl_id, size_t request) { H5HF_parent_shared_t par_shared; /* Parent shared information */ H5HF_shared_t *shared; /* Shared heap information */ haddr_t dblock_addr; /* Address of new direct block */ size_t dblock_size; /* Size of new direct block */ size_t min_dblock_size; /* Min. size of direct block to allocate */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5HF_man_dblock_new) #ifdef QAK HDfprintf(stderr, "%s: request = %Zu\n", FUNC, request); #endif /* QAK */ /* * Check arguments. */ HDassert(fh_shared); HDassert(request > 0); /* Get the pointer to the shared heap info */ shared = H5RC_GET_OBJ(fh_shared); HDassert(shared); /* Compute the min. size of the direct block needed to fulfill the request */ if(request < shared->man_dtable.cparam.start_block_size) min_dblock_size = shared->man_dtable.cparam.start_block_size; else { min_dblock_size = 2 * H5V_log2_gen((hsize_t)request); HDassert(min_dblock_size <= shared->man_dtable.cparam.max_direct_size); } /* end else */ /* Adjust the size of block needed to fulfill request, with overhead */ #ifdef QAK HDfprintf(stderr, "%s: H5HF_MAN_ABS_DIRECT_OVERHEAD_SIZE = %u\n", FUNC, H5HF_MAN_ABS_DIRECT_OVERHEAD_SIZE(shared, shared->man_dtable.cparam.start_block_size)); HDfprintf(stderr, "%s: H5HF_MAN_ABS_DIRECT_OBJ_PREFIX_LEN_SIZE = %u\n", FUNC, H5HF_MAN_ABS_DIRECT_OBJ_PREFIX_LEN_SIZE(shared, shared->man_dtable.cparam.start_block_size)); #endif /* QAK */ if((min_dblock_size - request) < (H5HF_MAN_ABS_DIRECT_OVERHEAD_SIZE(shared, min_dblock_size) + H5HF_MAN_ABS_DIRECT_OBJ_PREFIX_LEN_SIZE(shared, min_dblock_size))) min_dblock_size *= 2; #ifdef QAK HDfprintf(stderr, "%s: min_dblock_size = %Zu\n", FUNC, min_dblock_size); #endif /* QAK */ /* Check if this is the first block in the heap */ if(!H5F_addr_defined(shared->man_dtable.table_addr)) { /* Create new direct block at corrent location*/ dblock_size = shared->man_dtable.cparam.start_block_size; par_shared.shared = fh_shared; par_shared.parent = NULL; par_shared.parent_entry = 0; par_shared.parent_free_space = 0; if(H5HF_man_dblock_create(&par_shared, dxpl_id, dblock_size, shared->man_dtable.next_dir_block, &dblock_addr) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "can't allocate fractal heap direct block") #ifdef QAK HDfprintf(stderr, "%s: dblock_addr = %a\n", FUNC, dblock_addr); HDfprintf(stderr, "%s: shared->man_dtable.next_dir_block = %Hu\n", FUNC, shared->man_dtable.next_dir_block); #endif /* QAK */ /* Point root at new direct block */ shared->man_dtable.curr_root_rows = 0; shared->man_dtable.table_addr = dblock_addr; } /* end if */ /* Root entry already exists, go get indirect block for new direct block */ else { H5HF_indirect_t *iblock; /* Pointer to indirect block to create */ haddr_t iblock_addr; /* Indirect block's address */ size_t dblock_entry; /* Direct entry for new direct block */ /* Find indirect block with room for block of correct size */ if(NULL == (iblock = H5HF_man_iblock_place_dblock(fh_shared, dxpl_id, min_dblock_size, &iblock_addr, &dblock_entry, &dblock_size))) HGOTO_ERROR(H5E_HEAP, H5E_CANTGET, FAIL, "unable to locate indirect block with space for direct block") #ifdef QAK HDfprintf(stderr, "%s: dblock_entry = %Zu\n", FUNC, dblock_entry); HDfprintf(stderr, "%s: dblock_size = %Zu\n", FUNC, dblock_size); #endif /* QAK */ /* Create new direct block at corrent location*/ par_shared.shared = fh_shared; par_shared.parent = iblock->self; par_shared.parent_entry = dblock_entry; par_shared.parent_free_space = 0; if(H5HF_man_dblock_create(&par_shared, dxpl_id, dblock_size, shared->man_dtable.next_dir_block, &dblock_addr) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "can't allocate fractal heap direct block") #ifdef QAK HDfprintf(stderr, "%s: dblock_addr = %a\n", FUNC, dblock_addr); HDfprintf(stderr, "%s: shared->man_dtable.next_dir_block = %Hu\n", FUNC, shared->man_dtable.next_dir_block); #endif /* QAK */ /* Point indirect block at new direct block */ iblock->dblock_ents[dblock_entry].addr = dblock_addr; /* Increment size of next block from this indirect block */ H5HF_man_iblock_inc_loc(iblock); /* Mark indirect block as modified */ iblock->dirty = TRUE; /* Release the indirect block (marked as dirty) */ if(H5AC_unprotect(shared->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") } /* end else */ /* Update shared info */ /* XXX: This is going to cause problems when we support skipping blocks */ shared->man_dtable.next_dir_block += dblock_size; done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5HF_man_dblock_new() */ /*------------------------------------------------------------------------- * Function: H5HF_man_find * * Purpose: Find space for an object in a managed obj. heap * * Return: Non-negative on success (with direct block info * filled in), negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Mar 13 2006 * *------------------------------------------------------------------------- */ herr_t H5HF_man_find(H5RC_t *fh_shared, hid_t dxpl_id, size_t request, H5HF_section_free_node_t **sec_node/*out*/) { H5HF_shared_t *shared; /* Shared heap information */ htri_t node_found; /* Whether an existing free list node was found */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5HF_man_find) #ifdef QAK HDfprintf(stderr, "%s: request = %Zu\n", FUNC, request); #endif /* QAK */ /* * Check arguments. */ HDassert(fh_shared); HDassert(request > 0); HDassert(sec_node); /* Get the pointer to the shared heap info */ shared = H5RC_GET_OBJ(fh_shared); HDassert(shared); /* Look for free space in global free list */ if((node_found = H5HF_flist_find(shared->flist, request, (void **)sec_node)) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "can't locate free space in fractal heap direct block") /* XXX: Make certain we've loaded all the direct blocks in the heap */ /* If we didn't find a node, go make one big enough to hold the requested block */ if(!node_found) { /* Allocate direct block big enough to hold requested size */ if(H5HF_man_dblock_new(fh_shared, dxpl_id, request) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTCREATE, FAIL, "can't create fractal heap direct block") /* Request space from the free list */ /* (Ought to be able to be filled, now) */ if(H5HF_flist_find(shared->flist, request, (void **)sec_node) <= 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "can't locate free space in fractal heap direct block") } /* end if */ HDassert(*sec_node); #ifdef QAK HDfprintf(stderr, "%s: (*sec_node)->block_addr = %a\n", FUNC, (*sec_node)->block_addr); HDfprintf(stderr, "%s: (*sec_node)->block_size = %Zu\n", FUNC, (*sec_node)->block_size); HDfprintf(stderr, "%s: (*sec_node)->sect_addr = %a\n", FUNC, (*sec_node)->sect_addr); HDfprintf(stderr, "%s: (*sec_node)->sect_size = %Zu\n", FUNC, (*sec_node)->sect_size); #endif /* QAK */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5HF_man_find() */ /*------------------------------------------------------------------------- * Function: H5HF_man_insert * * Purpose: Insert an object in a managed direct block * * Return: SUCCEED/FAIL * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Mar 13 2006 * *------------------------------------------------------------------------- */ herr_t H5HF_man_insert(H5RC_t *fh_shared, hid_t dxpl_id, H5HF_section_free_node_t *sec_node, size_t obj_size, const void *obj, void *id) { H5HF_shared_t *shared; /* Pointer to shared heap info */ H5HF_direct_t *dblock = NULL; /* Pointer to direct block to modify */ haddr_t dblock_addr; /* Direct block address */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5HF_man_insert) /* * Check arguments. */ HDassert(fh_shared); HDassert(obj_size > 0); HDassert(obj); HDassert(id); /* Get the pointer to the shared heap info */ shared = H5RC_GET_OBJ(fh_shared); HDassert(shared); /* Lock direct block */ dblock_addr = sec_node->block_addr; if(NULL == (dblock = H5AC_protect(shared->f, dxpl_id, H5AC_FHEAP_DBLOCK, dblock_addr, &sec_node->block_size, fh_shared, H5AC_WRITE))) HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, FAIL, "unable to load fractal heap direct block") /* Insert object into block */ /* Check for address mapping type */ if(shared->addrmap == H5HF_ABSOLUTE) { H5HF_direct_free_node_t *node; /* Block's free list node */ uint8_t *p; /* Temporary pointer to obj info in block */ size_t obj_off; /* Offset of object within block */ size_t full_obj_size; /* Size of object including metadata */ size_t alloc_obj_size; /* Size of object including metadata & any free space fragment */ unsigned char free_frag_size; /* Size of free space fragment */ /* Locate "local" free list node for section */ /* XXX: Change to using skip list */ obj_off = sec_node->sect_addr - sec_node->block_addr; node = dblock->free_list->first; while(node->my_offset != obj_off) node = node->next; /* Compute full object size, with metadata for object */ full_obj_size = obj_size + H5HF_MAN_ABS_DIRECT_OBJ_PREFIX_LEN_DBLOCK(shared, dblock); /* Sanity checks */ HDassert(dblock->blk_free_space >= full_obj_size); HDassert(dblock->free_list); HDassert(node->size >= full_obj_size); /* Check for using entire node */ free_frag_size = 0; if(node->size <= (full_obj_size + H5HF_MAN_ABS_DIRECT_FREE_NODE_SIZE(dblock))) { /* Set the offset of the object within the block */ obj_off = node->my_offset; /* Check for allocating from first node in list */ if(node->prev == NULL) { /* Make the next node in the free list the list head */ dblock->free_list->first = node->next; dblock->free_list_head = node->next_offset; } /* end if */ else { H5HF_direct_free_node_t *prev_node; /* Pointer to previous free list node for block */ /* Excise node from list */ prev_node = node->prev; prev_node->next = node->next; if(node->next) { H5HF_direct_free_node_t *next_node; /* Pointer to next free list node for block */ next_node = node->next; next_node->prev = prev_node; prev_node->next_offset = next_node->my_offset; } /* end if */ else prev_node->next_offset = 0; } /* end if */ /* Set the free fragment size */ free_frag_size = (unsigned char )(node->size - full_obj_size); /* Release the memory for the free list node & section */ H5FL_FREE(H5HF_direct_free_node_t, node); H5FL_FREE(H5HF_section_free_node_t, sec_node); } /* end if */ else { /* Allocate object from end of free space node */ /* (so we don't have to adjust with any other node's info */ obj_off = (node->my_offset + node->size) - full_obj_size; node->size -= full_obj_size; /* Adjust information for section node */ sec_node->sect_size -= full_obj_size; /* Re-insert section node onto global list */ if(H5HF_flist_add(shared->flist, sec_node, &sec_node->sect_size, &sec_node->sect_addr) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTINIT, FAIL, "can't add direct block free space to global list") } /* end else */ /* Mark free list as dirty */ dblock->free_list->dirty = TRUE; /* Compute the size of the space to actually allocate */ /* (includes the metadata for the object & the free space fragment) */ alloc_obj_size = full_obj_size + free_frag_size; #ifdef QAK HDfprintf(stderr, "%s: obj_off = %Zu\n", FUNC, obj_off); HDfprintf(stderr, "%s: free_frag_size = %Zu\n", FUNC, free_frag_size); HDfprintf(stderr, "%s: full_obj_size = %Zu\n", FUNC, full_obj_size); HDfprintf(stderr, "%s: alloc_obj_size = %Zu\n", FUNC, alloc_obj_size); #endif /* QAK */ /* Reduce space available in parent block(s) */ if(H5HF_man_dblock_adj_free(dblock, -(ssize_t)alloc_obj_size) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTDEC, FAIL, "can't adjust free space for direct block & parents") /* Encode the object in the block */ /* Point to location for object */ p = dblock->blk + obj_off; /* Encode the length */ UINT64ENCODE_VAR(p, obj_size, dblock->blk_off_size); /* Encode the free fragment size */ *p++ = free_frag_size; /* Encode a ref. count (of 1), if required */ if(shared->ref_count_obj) UINT64ENCODE_VAR(p, 1, shared->ref_count_size); /* Copy the object's data into the heap */ HDmemcpy(p, obj, obj_size); p += obj_size; #ifdef H5_USING_PURIFY /* Zero out the free space fragment */ HDmemset(p, 0, free_frag_size); #endif /* H5_USING_PURIFY */ #ifndef NDEBUG p += free_frag_size; #endif /* NDEBUG */ /* Sanity check */ HDassert((size_t)(p - (dblock->blk + obj_off)) == alloc_obj_size); /* Set the heap ID for the new object */ #ifdef QAK HDfprintf(stderr, "%s: dblock->block_off = %Hu\n", FUNC, dblock->block_off); #endif /* QAK */ UINT64ENCODE_VAR(id, (dblock->block_off + obj_off), shared->heap_off_size); } /* end if */ else { HGOTO_ERROR(H5E_HEAP, H5E_UNSUPPORTED, FAIL, "inserting within mapped managed blocks not supported yet") } /* end else */ /* Update statistics about heap */ shared->nobjs++; /* Mark heap header as modified */ shared->dirty = TRUE; done: /* Release the direct block (marked as dirty) */ if(dblock && H5AC_unprotect(shared->f, dxpl_id, H5AC_FHEAP_DBLOCK, dblock_addr, dblock, H5AC__DIRTIED_FLAG) < 0) HDONE_ERROR(H5E_HEAP, H5E_CANTUNPROTECT, FAIL, "unable to release fractal heap direct block") FUNC_LEAVE_NOAPI(ret_value) } /* end H5HF_man_insert() */ /*------------------------------------------------------------------------- * Function: H5HF_man_read * * Purpose: Read an object from a managed heap * * Return: SUCCEED/FAIL * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Mar 17 2006 * *------------------------------------------------------------------------- */ herr_t H5HF_man_read(H5RC_t *fh_shared, hid_t dxpl_id, hsize_t obj_off, void *obj) { H5HF_shared_t *shared; /* Pointer to shared heap info */ unsigned row, col; /* Row & column for object's block */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5HF_man_read) /* * Check arguments. */ HDassert(fh_shared); HDassert(obj_off > 0); HDassert(obj); /* Get the pointer to the shared heap info */ shared = H5RC_GET_OBJ(fh_shared); HDassert(shared); /* Check for root direct block */ if(shared->man_dtable.curr_root_rows == 0) { H5HF_parent_shared_t par_shared; /* Parent shared information */ H5HF_direct_t *dblock; /* Pointer to direct block to query */ size_t blk_off; /* Offset of object in block */ uint8_t *p; /* Temporary pointer to obj info in block */ size_t obj_size; /* Size of object */ #ifdef QAK /* Look up row & column for object */ if(H5HF_dtable_lookup(&shared->man_dtable, obj_off, &row, &col) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTCOMPUTE, FAIL, "can't compute row & column of object") HDfprintf(stderr, "%s: row = %u, col = %u\n", FUNC, row, col); #endif /* QAK */ /* Lock first (root) direct block */ par_shared.shared = fh_shared; par_shared.parent = NULL; par_shared.parent_entry = 0; par_shared.parent_free_space = shared->total_man_free; if(NULL == (dblock = H5AC_protect(shared->f, dxpl_id, H5AC_FHEAP_DBLOCK, shared->man_dtable.table_addr, &shared->man_dtable.cparam.start_block_size, &par_shared, H5AC_READ))) HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, NULL, "unable to protect fractal heap direct block") /* Compute offset of object within block */ HDassert((obj_off - dblock->block_off) < (hsize_t)shared->man_dtable.cparam.start_block_size); blk_off = (size_t)(obj_off - dblock->block_off); /* Point to location for object */ p = dblock->blk + blk_off; /* Decode the length */ UINT64DECODE_VAR(p, obj_size, dblock->blk_off_size); /* Skip over the free fragment size & ref count */ p += 1 + (shared->ref_count_obj ? shared->ref_count_size : 0); /* Copy the object's data into the heap */ HDmemcpy(obj, p, obj_size); /* Unlock first (root) direct block */ if(H5AC_unprotect(shared->f, dxpl_id, H5AC_FHEAP_DBLOCK, shared->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; } /* end if */ else { HGOTO_ERROR(H5E_HEAP, H5E_UNSUPPORTED, FAIL, "root indirect blocks not supported yet") } /* end else */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5HF_man_read() */ /*------------------------------------------------------------------------- * Function: H5HF_iblock_free * * Purpose: Free fractal heap indirect block * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Mar 13 2006 * *------------------------------------------------------------------------- */ herr_t H5HF_iblock_free(void *_iblock) { H5HF_indirect_t *iblock = (H5HF_indirect_t *)_iblock; FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5HF_iblock_free) #ifdef QAK HDfprintf(stderr, "%s: Freeing indirect block\n", "H5HF_iblock_free"); #endif /* QAK */ /* Sanity check */ HDassert(iblock); /* Decrement reference count on shared fractal heap info */ if(iblock->shared) H5RC_DEC(iblock->shared); if(iblock->parent) H5RC_DEC(iblock->parent); /* Release entry tables */ if(iblock->dblock_ents) H5FL_SEQ_FREE(H5HF_indirect_dblock_ent_t, iblock->dblock_ents); if(iblock->iblock_ents) H5FL_SEQ_FREE(H5HF_indirect_iblock_ent_t, iblock->iblock_ents); /* Free fractal heap indirect block info */ H5FL_FREE(H5HF_indirect_t, iblock); FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5HF_iblock_free() */ /*------------------------------------------------------------------------- * 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 * *------------------------------------------------------------------------- */ static H5HF_indirect_t * H5HF_man_iblock_place_dblock(H5RC_t *fh_shared, hid_t dxpl_id, size_t min_dblock_size, haddr_t *addr_p, size_t *entry_p, size_t *dblock_size) { H5HF_parent_shared_t par_shared; /* Parent shared information */ H5HF_shared_t *shared; /* Pointer to shared heap info */ H5HF_indirect_t *iblock; /* Pointer to indirect block */ H5HF_indirect_t *ret_value; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5HF_man_iblock_place_dblock) /* * Check arguments. */ HDassert(fh_shared); HDassert(min_dblock_size > 0); HDassert(addr_p); /* Get the pointer to the shared heap info */ shared = H5RC_GET_OBJ(fh_shared); HDassert(shared); /* Check for creating first indirect block */ if(shared->man_dtable.curr_root_rows == 0) { H5HF_direct_t *dblock; /* Pointer to direct block to query */ unsigned nrows; /* Number of rows for root indirect block */ /* Check for skipping over blocks */ if(min_dblock_size != shared->man_dtable.cparam.start_block_size) { HDfprintf(stderr, "%s: Skipping direct block sizes not supported\n", FUNC); HGOTO_ERROR(H5E_HEAP, H5E_UNSUPPORTED, NULL, "skipping direct block sizes not supported yet") } /* end if */ #ifdef QAK HDfprintf(stderr, "%s: creating first indirect block\n", FUNC); #endif /* QAK */ /* Check for allocating entire root indirect block initially */ if(shared->man_dtable.cparam.start_root_rows == 0) nrows = shared->man_dtable.max_root_indirect_rows; else nrows = shared->man_dtable.cparam.start_root_rows; /* Allocate root indirect block */ if(H5HF_man_iblock_create(fh_shared, dxpl_id, (hsize_t)0, nrows, shared->man_dtable.max_direct_rows, addr_p) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, NULL, "can't allocate fractal heap indirect block") #ifdef QAK HDfprintf(stderr, "%s: *addr_p = %a\n", FUNC, *addr_p); #endif /* QAK */ /* Move current direct block (used as root) into new indirect block */ /* Lock new indirect block */ par_shared.shared = fh_shared; par_shared.parent = NULL; par_shared.parent_entry = 0; par_shared.parent_free_space = 0; if(NULL == (iblock = H5AC_protect(shared->f, dxpl_id, H5AC_FHEAP_IBLOCK, *addr_p, &nrows, &par_shared, H5AC_WRITE))) HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, NULL, "unable to protect fractal heap indirect block") /* Lock first (root) direct block */ par_shared.parent_free_space = shared->total_man_free; if(NULL == (dblock = H5AC_protect(shared->f, dxpl_id, H5AC_FHEAP_DBLOCK, shared->man_dtable.table_addr, &shared->man_dtable.cparam.start_block_size, &par_shared, 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->dblock_ents[0].addr = shared->man_dtable.table_addr; iblock->dblock_ents[0].free_space = dblock->blk_free_space; iblock->child_free_space += dblock->blk_free_space; /* Make direct block share parent indirect block */ dblock->parent = iblock->self; dblock->parent_entry = 0; H5RC_INC(dblock->parent); /* Unlock first (root) direct block */ if(H5AC_unprotect(shared->f, dxpl_id, H5AC_FHEAP_DBLOCK, shared->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 */ H5HF_man_iblock_inc_loc(iblock); /* Mark indirect block as modified */ iblock->dirty = TRUE; /* Point heap header at new indirect block */ shared->man_dtable.curr_root_rows = nrows; shared->man_dtable.table_addr = *addr_p; /* Mark heap header as modified */ shared->dirty = TRUE; /* Set entry for direct block */ *entry_p = 1; /* Set size of direct block to create */ *dblock_size = iblock->next_dir_size; } /* end if */ else { #ifdef QAK HDfprintf(stderr, "%s: searching root indirect block\n", FUNC); #endif /* QAK */ /* Lock root indirect block */ par_shared.shared = fh_shared; par_shared.parent = NULL; par_shared.parent_entry = 0; par_shared.parent_free_space = shared->total_man_free; if(NULL == (iblock = H5AC_protect(shared->f, dxpl_id, H5AC_FHEAP_IBLOCK, shared->man_dtable.table_addr, &shared->man_dtable.curr_root_rows, &par_shared, H5AC_WRITE))) HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, NULL, "unable to protect fractal heap indirect block") #ifdef QAK HDfprintf(stderr, "%s: iblock->next_dir_row = %u\n", FUNC, iblock->next_dir_row); HDfprintf(stderr, "%s: iblock->next_dir_col = %u\n", FUNC, iblock->next_dir_col); HDfprintf(stderr, "%s: iblock->next_dir_size = %Zu\n", FUNC, iblock->next_dir_size); HDfprintf(stderr, "%s: iblock->dir_full = %u\n", FUNC, (unsigned)iblock->dir_full); #endif /* QAK */ /* Check for full direct block entries in root */ if(iblock->dir_full) { HDfprintf(stderr, "%s: Adding nested indirect block to heap not supported\n", FUNC); HGOTO_ERROR(H5E_HEAP, H5E_UNSUPPORTED, NULL, "Adding nested indirect block not supported yet") } /* end if */ /* Check for skipping over blocks */ if(min_dblock_size > iblock->next_dir_size) { HDfprintf(stderr, "%s: Skipping direct block sizes not supported\n", FUNC); HGOTO_ERROR(H5E_HEAP, H5E_UNSUPPORTED, NULL, "skipping direct block sizes not supported yet") } /* end if */ /* Check if we need a direct block past current allocation */ if(iblock->next_dir_row == iblock->ndir_rows) { haddr_t old_addr; /* Old address of indirect block */ haddr_t new_addr; /* New address of indirect block */ unsigned new_nrows; /* New # of direct rows */ size_t u; /* Local index variable */ /* Check for special case of second row, which has blocks the same size as first row */ if(iblock->next_dir_row == 1) iblock->next_dir_size = shared->man_dtable.cparam.start_block_size; /* Compute new # of rows in indirect block */ new_nrows = 2 * iblock->ndir_rows; if(new_nrows > iblock->max_direct_rows) new_nrows = iblock->max_direct_rows; #ifdef QAK HDfprintf(stderr, "%s: new_nrows = %u\n", FUNC, new_nrows); #endif /* QAK */ /* Currently, the old chunk 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 should keep the file smaller also, 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 */ old_addr = shared->man_dtable.table_addr; if(H5MF_xfree(shared->f, H5FD_MEM_FHEAP_IBLOCK, dxpl_id, old_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->ndir_rows = new_nrows; iblock->size = H5HF_MAN_INDIRECT_SIZE(shared, iblock); /* Allocate space for the new indirect block on disk */ if(HADDR_UNDEF == (new_addr = H5MF_alloc(shared->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") /* Re-allocate direct block entry table */ if(NULL == (iblock->dblock_ents = H5FL_SEQ_REALLOC(H5HF_indirect_dblock_ent_t, iblock->dblock_ents, (iblock->ndir_rows * shared->man_dtable.cparam.width)))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for direct entries") /* Initialize new direct block entries */ for(u = (iblock->next_dir_row * shared->man_dtable.cparam.width); u < (iblock->ndir_rows * shared->man_dtable.cparam.width); u++) { iblock->dblock_ents[u].addr = HADDR_UNDEF; iblock->dblock_ents[u].free_space = 0; } /* end for */ /* Mark indirect block as dirty */ iblock->dirty = TRUE; /* Release the indirect block (marked as dirty) */ if(H5AC_unprotect(shared->f, dxpl_id, H5AC_FHEAP_IBLOCK, old_addr, iblock, H5AC__DIRTIED_FLAG) < 0) HDONE_ERROR(H5E_HEAP, H5E_CANTUNPROTECT, NULL, "unable to release fractal heap indirect block") /* Move object in cache */ if(H5AC_rename(shared->f, H5AC_FHEAP_IBLOCK, old_addr, new_addr) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTSPLIT, NULL, "unable to move fractal heap root indirect block") /* Update other shared header info */ shared->man_dtable.curr_root_rows = new_nrows; shared->man_dtable.table_addr = new_addr; /* Mark heap header as modified */ shared->dirty = TRUE; /* Lock root indirect block (again) */ par_shared.shared = fh_shared; par_shared.parent = NULL; par_shared.parent_entry = 0; par_shared.parent_free_space = shared->total_man_free; if(NULL == (iblock = H5AC_protect(shared->f, dxpl_id, H5AC_FHEAP_IBLOCK, shared->man_dtable.table_addr, &shared->man_dtable.curr_root_rows, &par_shared, H5AC_WRITE))) HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, NULL, "unable to protect fractal heap indirect block") } /* end if */ /* Set address of indirect block */ *addr_p = shared->man_dtable.table_addr; /* Set entry for direct block */ *entry_p = iblock->next_dir_entry; /* Set size of direct block to create */ *dblock_size = iblock->next_dir_size; } /* end else */ /* Set return value */ ret_value = iblock; done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5HF_man_iblock_place_dblock() */ /*------------------------------------------------------------------------- * 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(H5RC_t *fh_shared, hid_t dxpl_id, hsize_t block_off, unsigned nrows, unsigned max_dir_rows, haddr_t *addr_p) { H5HF_shared_t *shared; /* Pointer to shared heap info */ H5HF_indirect_t *iblock = NULL; /* Pointer to indirect block */ size_t u; /* Local index variable */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5HF_man_iblock_create) /* * Check arguments. */ HDassert(fh_shared); 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 = fh_shared; H5RC_INC(iblock->shared); /* Get the pointer to the shared heap info */ shared = H5RC_GET_OBJ(iblock->shared); HDassert(shared); /* Make a reference to this block */ if(NULL == (iblock->self = H5RC_create(iblock, H5HF_iblock_free))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "can't create ref-count wrapper for indirect fractal heap block") #ifdef QAK HDfprintf(stderr, "%s: nrows = %u\n", FUNC, nrows); #endif /* QAK */ /* Set info for direct block */ iblock->parent = NULL; /* Temporary, except for root indirect block */ iblock->parent_entry = 0; iblock->block_off = block_off; iblock->child_free_space = 0; iblock->nrows = nrows; iblock->dir_full = FALSE; iblock->next_dir_col = 0; iblock->next_dir_row = 0; iblock->next_dir_entry = 0; iblock->next_dir_size = shared->man_dtable.cparam.start_block_size; iblock->max_direct_rows = max_dir_rows; if(iblock->nrows > shared->man_dtable.max_direct_rows) { iblock->ndir_rows = shared->man_dtable.max_direct_rows; iblock->nindir_rows = iblock->nrows - iblock->ndir_rows; } /* end if */ else { iblock->ndir_rows = iblock->nrows; iblock->nindir_rows = 0; } /* end else */ /* Compute size of buffer needed for indirect block */ iblock->size = H5HF_MAN_INDIRECT_SIZE(shared, iblock); /* Allocate indirect block entry tables */ if(NULL == (iblock->dblock_ents = H5FL_SEQ_MALLOC(H5HF_indirect_dblock_ent_t, (iblock->ndir_rows * shared->man_dtable.cparam.width)))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for direct entries") if(iblock->nindir_rows > 0) { if(NULL == (iblock->iblock_ents = H5FL_SEQ_MALLOC(H5HF_indirect_iblock_ent_t, (iblock->nindir_rows * shared->man_dtable.cparam.width)))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for indirect entries") } /* end if */ else iblock->iblock_ents = NULL; /* Initialize indirect block entry tables */ for(u = 0; u < (iblock->ndir_rows * shared->man_dtable.cparam.width); u++) { iblock->dblock_ents[u].addr = HADDR_UNDEF; iblock->dblock_ents[u].free_space = 0; } /* end for */ for(u = 0; u < (iblock->nindir_rows * shared->man_dtable.cparam.width); u++) iblock->iblock_ents[u].addr = HADDR_UNDEF; /* Allocate space for the indirect block on disk */ if(HADDR_UNDEF == (*addr_p = H5MF_alloc(shared->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") /* XXX: Update indirect statistics when they are added */ #ifdef LATER /* Update shared heap info */ shared->total_man_free += dblock->blk_free_space; shared->man_dtable.next_dir_block += dblock->size; shared->total_size += dblock->size; shared->man_size += dblock->size; /* Mark heap header as modified */ shared->dirty = TRUE; #endif /* LATER */ /* Cache the new fractal heap header */ if(H5AC_set(shared->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(shared->f, iblock); FUNC_LEAVE_NOAPI(ret_value) } /* end H5HF_man_iblock_create() */