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-rw-r--r--src/H5B2.c3321
1 files changed, 2 insertions, 3319 deletions
diff --git a/src/H5B2.c b/src/H5B2.c
index f1fd069..57ba36c 100644
--- a/src/H5B2.c
+++ b/src/H5B2.c
@@ -46,84 +46,16 @@
/* Local Macros */
/****************/
-/* Format overhead for each node (on disk) */
-#define H5B2_OVERHEAD_SIZE (H5B2_SIZEOF_MAGIC+1) /* Signature + version # */
-
-/* Number of records that fit into internal node */
-#define H5B2_NUM_INT_REC(f,n,r) (((n)-(H5B2_OVERHEAD_SIZE+H5B2_NODE_POINTER_SIZE(f)))/((r)+H5B2_NODE_POINTER_SIZE(f)))
-
-/* Number of records that fit into leaf node */
-#define H5B2_NUM_LEAF_REC(n,r) (((n)-H5B2_OVERHEAD_SIZE)/(r))
-
-/* Uncomment this macro to enable extra sanity checking */
-/* #define H5B2_DEBUG */
-
/******************/
/* Local Typedefs */
/******************/
+
/********************/
/* Local Prototypes */
/********************/
-/* Helper functions */
-static herr_t H5B2_shared_free(void *_shared);
-static herr_t H5B2_create_leaf(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
- H5B2_node_ptr_t *node_ptr);
-static herr_t H5B2_create_internal(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
- H5B2_node_ptr_t *node_ptr);
-static int H5B2_locate_record(const H5B2_class_t *type, unsigned nrec,
- size_t *rec_off, const uint8_t *native, const void *udata, unsigned *idx);
-static herr_t H5B2_split_root(H5F_t *f, hid_t dxpl_id, H5B2_t *bt2,
- unsigned *bt2_flags_ptr, H5RC_t *bt2_shared);
-static herr_t H5B2_redistribute2(H5F_t *f, hid_t dxpl_id, unsigned depth,
- H5B2_internal_t *internal, unsigned idx);
-static herr_t H5B2_split2(H5F_t *f, hid_t dxpl_id, unsigned depth,
- H5B2_node_ptr_t *curr_node_ptr, unsigned * parent_cache_info_flags_ptr,
- H5B2_internal_t *internal, unsigned *internal_flags_ptr, unsigned idx);
-static herr_t H5B2_split3(H5F_t *f, hid_t dxpl_id, unsigned depth,
- H5B2_node_ptr_t *curr_node_ptr, unsigned *parent_cache_info_flags,
- H5B2_internal_t *internal, unsigned *internal_flags, unsigned idx);
-static herr_t H5B2_redistribute3(H5F_t *f, hid_t dxpl_id, unsigned depth,
- H5B2_internal_t *internal, unsigned *internal_flags_ptr, unsigned idx);
-static herr_t H5B2_merge2(H5F_t *f, hid_t dxpl_id, unsigned depth,
- H5B2_node_ptr_t *curr_node_ptr, unsigned *parent_cache_info_flags_ptr,
- H5B2_internal_t *internal, unsigned *internal_flags_ptr, unsigned idx);
-static herr_t H5B2_merge3(H5F_t *f, hid_t dxpl_id, unsigned depth,
- H5B2_node_ptr_t *curr_node_ptr, unsigned *parent_cache_info_flags_ptr,
- H5B2_internal_t *internal, unsigned *internal_flags_ptr, unsigned idx);
-static herr_t H5B2_swap_leaf(H5F_t *f, hid_t dxpl_id, unsigned depth,
- H5B2_internal_t *internal, unsigned *internal_flags_ptr,
- unsigned idx, void *swap_loc);
-static herr_t H5B2_insert_internal(H5F_t *f, hid_t dxpl_id,
- H5RC_t *bt2_shared, unsigned depth, unsigned *parent_cache_info_flags_ptr,
- H5B2_node_ptr_t *curr_node_ptr, void *udata);
-static herr_t H5B2_insert_leaf(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
- H5B2_node_ptr_t *curr_node_ptr, void *udata);
-static herr_t H5B2_remove_internal(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
- hbool_t *depth_decreased, void *swap_loc, unsigned depth, H5AC_info_t *parent_cache_info,
- hbool_t * parent_cache_info_dirtied_ptr, H5B2_node_ptr_t *curr_node_ptr, void *udata);
-static herr_t H5B2_remove_leaf(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
- H5B2_node_ptr_t *curr_node_ptr, void *udata);
-static herr_t H5B2_iterate_node(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
- unsigned depth, const H5B2_node_ptr_t *curr_node, H5B2_operator_t op,
- void *op_data);
-static herr_t H5B2_neighbor_leaf(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
- H5B2_node_ptr_t *curr_node_ptr, void *neighbor_loc,
- H5B2_compare_t comp, void *udata, H5B2_found_t op, void *op_data);
-static herr_t H5B2_neighbor_internal(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
- unsigned depth, H5B2_node_ptr_t *curr_node_ptr, void *neighbor_loc,
- H5B2_compare_t comp, void *udata, H5B2_found_t op, void *op_data);
-static herr_t H5B2_delete_node(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
- unsigned depth, const H5B2_node_ptr_t *curr_node);
-#ifdef H5B2_DEBUG
-static herr_t H5B2_assert_leaf(H5B2_shared_t *shared, H5B2_leaf_t *leaf);
-static herr_t H5B2_assert_leaf2(H5B2_shared_t *shared, H5B2_leaf_t *leaf, H5B2_leaf_t *leaf2);
-static herr_t H5B2_assert_internal(hsize_t parent_all_nrec, H5B2_shared_t *shared, H5B2_internal_t *internal);
-static herr_t H5B2_assert_internal2(hsize_t parent_all_nrec, H5B2_shared_t *shared, H5B2_internal_t *internal, H5B2_internal_t *internal2);
-#endif /* H5B2_DEBUG */
-
/*********************/
/* Package Variables */
@@ -132,171 +64,15 @@ static herr_t H5B2_assert_internal2(hsize_t parent_all_nrec, H5B2_shared_t *shar
/* Declare a free list to manage the H5B2_t struct */
H5FL_DEFINE(H5B2_t);
-/* Declare a free list to manage the H5B2_internal_t struct */
-H5FL_DEFINE(H5B2_internal_t);
-
-/* Declare a free list to manage the H5B2_leaf_t struct */
-H5FL_DEFINE(H5B2_leaf_t);
-
/*****************************/
/* Library Private Variables */
/*****************************/
+
/*******************/
/* Local Variables */
/*******************/
-/* Declare a free list to manage B-tree node pages to/from disk */
-H5FL_BLK_DEFINE_STATIC(node_page);
-
-/* Declare a free list to manage the 'size_t' sequence information */
-H5FL_SEQ_DEFINE_STATIC(size_t);
-
-/* Declare a free list to manage the H5B2_shared_t struct */
-H5FL_DEFINE_STATIC(H5B2_shared_t);
-
-
-
-/*-------------------------------------------------------------------------
- * Function: H5B2_shared_init
- *
- * Purpose: Allocate & initialize shared B-tree info
- *
- * Return: Non-negative on success/Negative on failure
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Feb 2 2005
- *
- *-------------------------------------------------------------------------
- */
-herr_t
-H5B2_shared_init (H5F_t *f, H5B2_t *bt2, const H5B2_class_t *type,
- size_t node_size, size_t rrec_size,
- unsigned split_percent, unsigned merge_percent)
-{
- H5B2_shared_t *shared = NULL; /* Shared B-tree information */
- unsigned u; /* Local index variable */
- herr_t ret_value = SUCCEED; /* Return value */
-
- FUNC_ENTER_NOAPI_NOINIT(H5B2_shared_init)
-
- /* Allocate space for the shared information */
- if(NULL == (shared = H5FL_CALLOC(H5B2_shared_t)))
- HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for B-tree shared information")
-
- /* Assign user's information */
- shared->split_percent = split_percent;
- shared->merge_percent = merge_percent;
- shared->node_size = node_size;
- shared->rrec_size = rrec_size;
-
- /* Compute derived information */
- shared->internal_nrec = H5B2_NUM_INT_REC(f, shared->node_size, shared->rrec_size);
- shared->split_int_nrec = (shared->internal_nrec * shared->split_percent) / 100;
- shared->merge_int_nrec = (shared->internal_nrec * shared->merge_percent) / 100;
-
- shared->leaf_nrec = H5B2_NUM_LEAF_REC(shared->node_size, shared->rrec_size);
- shared->split_leaf_nrec = (shared->leaf_nrec * shared->split_percent) / 100;
- shared->merge_leaf_nrec = (shared->leaf_nrec * shared->merge_percent) / 100;
-
- /* Assign common type information */
- shared->type = type;
-
- /* Allocate "page" for node I/O */
- if((shared->page = H5FL_BLK_MALLOC(node_page, shared->node_size)) == NULL)
- HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed")
-#ifdef H5_USING_PURIFY
-HDmemset(shared->page,0,shared->node_size);
-#endif /* H5_USING_PURIFY */
-
- /* Create factory for internal node native record storage */
- if((shared->int_fac = H5FL_fac_init(type->nrec_size * shared->internal_nrec)) == NULL)
- HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "can't create internal node native key block factory")
-
- /* Create factory for leaf node native record storage */
- if((shared->leaf_fac = H5FL_fac_init(type->nrec_size * shared->leaf_nrec)) == NULL)
- HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "can't create leaf node native key block factory")
-
- /* Create factory for internal node node pointer storage */
- if((shared->node_ptr_fac = H5FL_fac_init(sizeof(H5B2_node_ptr_t) * (shared->internal_nrec + 1))) == NULL)
- HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "can't create internal node node pointer block factory")
-
- /* Allocate array of pointers to internal node native keys */
- if((shared->nat_off = H5FL_SEQ_MALLOC(size_t, MAX(shared->internal_nrec, shared->leaf_nrec))) == NULL)
- HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed")
-
- /* Initialize offsets in native key block */
- for(u = 0; u < MAX(shared->internal_nrec, shared->leaf_nrec); u++)
- shared->nat_off[u]=type->nrec_size*u;
-
- /* Make shared B-tree info reference counted */
- if(NULL == (bt2->shared = H5RC_create(shared, H5B2_shared_free)))
- HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "can't create ref-count wrapper for shared B-tree info")
-
-done:
- if(ret_value < 0)
- if(shared)
- H5B2_shared_free(shared);
-
- FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5B2_shared_init() */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5B2_shared_free
- *
- * Purpose: Free shared B-tree info
- *
- * Return: Non-negative on success/Negative on failure
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Feb 2 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_shared_free(void *_shared)
-{
- H5B2_shared_t *shared = (H5B2_shared_t *)_shared;
- herr_t ret_value = SUCCEED;
-
- FUNC_ENTER_NOAPI_NOINIT(H5B2_shared_free)
-
- /* Sanity check */
- HDassert(shared);
-
- /* Free the B-tree node buffer */
- if(shared->page)
- H5FL_BLK_FREE(node_page, shared->page);
-
- /* Destroy factory for internal node native record storage */
- if(shared->int_fac)
- if(H5FL_fac_term(shared->int_fac) < 0)
- HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't destroy internal node native key block factory")
-
- /* Destroy factory for leaf node native record storage */
- if(shared->leaf_fac)
- if(H5FL_fac_term(shared->leaf_fac) < 0)
- HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't destroy leaf node native key block factory")
-
- /* Destroy factory for internal node node pointer storage */
- if(shared->node_ptr_fac)
- if(H5FL_fac_term(shared->node_ptr_fac) < 0)
- HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't destroy internal node node pointer block factory")
-
- /* Free the array of offsets into the native key block */
- if(shared->nat_off)
- H5FL_SEQ_FREE(size_t,shared->nat_off);
-
- /* Free the shared B-tree info itself */
- H5FL_FREE(H5B2_shared_t, shared);
-
-done:
- FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5B2_shared_free() */
-
/*-------------------------------------------------------------------------
* Function: H5B2_create
@@ -370,2138 +146,6 @@ done:
/*-------------------------------------------------------------------------
- * Function: H5B2_locate_record
- *
- * Purpose: Performs a binary search to locate a record in a sorted
- * array of records.
- *
- * Sets *IDX to location of record greater than or equal to
- * record to locate.
- *
- * Return: Comparison value for insertion location. Negative for record
- * to locate being less than value in *IDX. Zero for record to
- * locate equal to value in *IDX. Positive for record to locate
- * being greater than value in *IDX (which should only happen when
- * record to locate is greater than all records to search).
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Feb 3 2005
- *
- *-------------------------------------------------------------------------
- */
-static int
-H5B2_locate_record(const H5B2_class_t *type, unsigned nrec, size_t *rec_off,
- const uint8_t *native, const void *udata, unsigned *idx)
-{
- unsigned lo = 0, hi; /* Low & high index values */
- unsigned my_idx = 0; /* Final index value */
- int cmp = -1; /* Key comparison value */
-
- FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5B2_locate_record)
-
- hi = nrec;
- while (lo < hi && cmp) {
- my_idx = (lo + hi) / 2;
- if ((cmp = (type->compare)(udata, native+rec_off[my_idx])) < 0)
- hi = my_idx;
- else
- lo = my_idx + 1;
- }
-
- *idx = my_idx;
-
- FUNC_LEAVE_NOAPI(cmp);
-} /* end H5B2_locate_record */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5B2_split_root
- *
- * Purpose: Split the root node
- *
- * Return: Success: Non-negative
- *
- * Failure: Negative
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Feb 3 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_split_root(H5F_t *f, hid_t dxpl_id, H5B2_t *bt2, unsigned *bt2_flags_ptr,
- H5RC_t *bt2_shared)
-{
- const H5AC_class_t *child_class; /* Pointer to child node's class info */
- H5B2_internal_t *new_root; /* Pointer to new root node */
- haddr_t left_addr, right_addr; /* Addresses of left & right child nodes */
- void *left_child, *right_child; /* Pointers to child nodes */
- unsigned *left_nrec, *right_nrec; /* Pointers to child # of records */
- uint8_t *left_native, *right_native;/* Pointers to childs' native records */
- H5B2_node_ptr_t *left_node_ptrs=NULL, *right_node_ptrs=NULL;/* Pointers to childs' node pointer info */
- H5B2_shared_t *shared; /* B-tree's shared info */
- unsigned mid_record; /* Index of "middle" record in current node */
- unsigned old_root_nrec; /* Number of records in root node */
- herr_t ret_value=SUCCEED; /* Return value */
-
- FUNC_ENTER_NOAPI_NOINIT(H5B2_split_root)
-
- HDassert(f);
- HDassert(bt2);
- HDassert(bt2_flags_ptr);
- HDassert(bt2_shared);
-
- /* Get the pointer to the shared B-tree info */
- shared=H5RC_GET_OBJ(bt2_shared);
- HDassert(shared);
-
- if(bt2->depth>0) {
- H5B2_internal_t *old_int=NULL, *new_int=NULL; /* Pointers to old & new internal nodes */
- H5B2_node_ptr_t new_int_ptr; /* Node pointer to manage new internal node */
-
- /* Create new internal node */
- new_int_ptr.all_nrec=new_int_ptr.node_nrec=0;
- if(H5B2_create_internal(f, dxpl_id, bt2_shared, &new_int_ptr)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTINIT, FAIL, "unable to create new internal node")
-
- /* Setup information for unlocking child nodes */
- child_class = H5AC_BT2_INT;
- left_addr = bt2->root.addr;
- right_addr = new_int_ptr.addr;
-
- /* Protect both leafs */
- if (NULL == (old_int = H5AC_protect(f, dxpl_id, H5AC_BT2_INT, left_addr, &(bt2->root.node_nrec), bt2_shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
- if (NULL == (new_int = H5AC_protect(f, dxpl_id, H5AC_BT2_INT, right_addr, &(new_int_ptr.node_nrec), bt2_shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
-
- /* More setup for child nodes */
- left_child = old_int;
- right_child = new_int;
- left_nrec = &(old_int->nrec);
- right_nrec = &(new_int->nrec);
- left_native = old_int->int_native;
- right_native = new_int->int_native;
- left_node_ptrs = old_int->node_ptrs;
- right_node_ptrs = new_int->node_ptrs;
- } /* end if */
- else {
- H5B2_leaf_t *old_leaf=NULL, *new_leaf=NULL; /* Pointers to old & new leaf nodes */
- H5B2_node_ptr_t new_leaf_ptr; /* Node pointer to manage new leaf node */
-
- /* Create new leaf node */
- new_leaf_ptr.all_nrec=new_leaf_ptr.node_nrec=0;
- if(H5B2_create_leaf(f, dxpl_id, bt2_shared, &new_leaf_ptr)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTINIT, FAIL, "unable to create new leaf node")
-
- /* Setup information for unlocking child nodes */
- child_class = H5AC_BT2_LEAF;
- left_addr = bt2->root.addr;
- right_addr = new_leaf_ptr.addr;
-
- /* Protect both leafs */
- if (NULL == (old_leaf = H5AC_protect(f, dxpl_id, H5AC_BT2_LEAF, left_addr, &(bt2->root.node_nrec), bt2_shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
- if (NULL == (new_leaf = H5AC_protect(f, dxpl_id, H5AC_BT2_LEAF, right_addr, &(new_leaf_ptr.node_nrec), bt2_shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
-
- /* More setup for child nodes */
- left_child = old_leaf;
- right_child = new_leaf;
- left_nrec = &(old_leaf->nrec);
- right_nrec = &(new_leaf->nrec);
- left_native = old_leaf->leaf_native;
- right_native = new_leaf->leaf_native;
- } /* end if */
-
- /* Set the old number of records in root node */
- old_root_nrec = bt2->root.node_nrec;
-
- /* Determine "middle" record to promote to new root */
- mid_record = old_root_nrec/2;
-
- /* Copy "upper half" of records to new child */
- HDmemcpy(H5B2_NAT_NREC(right_native,shared,0),H5B2_NAT_NREC(left_native,shared,mid_record+1),shared->type->nrec_size*(old_root_nrec-(mid_record+1)));
-
- /* Copy "upper half" of format root's node pointers, if the children of the root are internal nodes */
- if(bt2->depth>0)
- HDmemcpy(&(right_node_ptrs[0]),&(left_node_ptrs[mid_record+1]),sizeof(H5B2_node_ptr_t)*(old_root_nrec-mid_record));
-
- /* Create new internal node to use as root */
- if(H5B2_create_internal(f, dxpl_id, bt2_shared, &(bt2->root))<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTINIT, FAIL, "unable to create new internal node")
-
- /* Protect new internal node */
- if (NULL == (new_root = H5AC_protect(f, dxpl_id, H5AC_BT2_INT, bt2->root.addr, &(bt2->root.node_nrec), bt2_shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
-
- /* Copy "middle" record to new internal node */
- HDmemcpy(H5B2_INT_NREC(new_root,shared,0),H5B2_NAT_NREC(left_native,shared,mid_record),shared->type->nrec_size);
-
- /* Set internal node pointers to child nodes */
- new_root->node_ptrs[0].addr = left_addr;
- new_root->node_ptrs[1].addr = right_addr;
-
- /* Update record counts in child nodes */
- new_root->node_ptrs[0].node_nrec = *left_nrec = mid_record;
- new_root->node_ptrs[1].node_nrec = *right_nrec = old_root_nrec-(mid_record+1);
-
- /* Determine total number of records in new child nodes */
- if(bt2->depth>0) {
- unsigned u; /* Local index variable */
- hsize_t new_left_all_nrec; /* New total number of records in left child */
- hsize_t new_right_all_nrec; /* New total number of records in right child */
-
- /* Compute total of all records in each child node */
- new_left_all_nrec = new_root->node_ptrs[0].node_nrec;
- for(u=0; u<(*left_nrec+1); u++)
- new_left_all_nrec += left_node_ptrs[u].all_nrec;
-
- new_right_all_nrec = new_root->node_ptrs[1].node_nrec;
- for(u=0; u<(*right_nrec+1); u++)
- new_right_all_nrec += right_node_ptrs[u].all_nrec;
-
- new_root->node_ptrs[0].all_nrec = new_left_all_nrec;
- new_root->node_ptrs[1].all_nrec = new_right_all_nrec;
- } /* end if */
- else {
- new_root->node_ptrs[0].all_nrec = new_root->node_ptrs[0].node_nrec;
- new_root->node_ptrs[1].all_nrec = new_root->node_ptrs[1].node_nrec;
- } /* end else */
-
- /* Update record count in new internal node */
- new_root->nrec = 1;
-
-#ifdef H5B2_DEBUG
- H5B2_assert_internal(bt2->root.all_nrec,shared,new_root);
- if(bt2->depth>0) {
- H5B2_assert_internal2(new_root->node_ptrs[0].all_nrec,shared,left_child,right_child);
- H5B2_assert_internal2(new_root->node_ptrs[1].all_nrec,shared,right_child,left_child);
- } /* end if */
- else {
- H5B2_assert_leaf2(shared,left_child,right_child);
- H5B2_assert_leaf(shared,right_child);
- } /* end else */
-#endif /* H5B2_DEBUG */
- /* Release new internal node (marked as dirty) */
- if (H5AC_unprotect(f, dxpl_id, H5AC_BT2_INT, bt2->root.addr, new_root, H5AC__DIRTIED_FLAG) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree internal node")
-
- /* Release child nodes (marked as dirty) */
- if (H5AC_unprotect(f, dxpl_id, child_class, left_addr, left_child, H5AC__DIRTIED_FLAG) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree leaf node")
- if (H5AC_unprotect(f, dxpl_id, child_class, right_addr, right_child, H5AC__DIRTIED_FLAG) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree leaf node")
-
- /* Update depth of B-tree */
- bt2->depth++;
-
- /* Update pointer to B-tree's root node to pointer to new internal node */
- bt2->root.node_nrec = 1;
-
- /* Mark B-tree header as dirty */
- *bt2_flags_ptr |= H5AC__DIRTIED_FLAG;
-
-done:
- FUNC_LEAVE_NOAPI(ret_value);
-} /* end H5B2_split_root */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5B2_redistribute2
- *
- * Purpose: Redistribute records between two nodes
- *
- * Return: Success: Non-negative
- *
- * Failure: Negative
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Feb 9 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_redistribute2(H5F_t *f, hid_t dxpl_id, unsigned depth, H5B2_internal_t *internal, unsigned idx)
-{
- const H5AC_class_t *child_class; /* Pointer to child node's class info */
- haddr_t left_addr, right_addr; /* Addresses of left & right child nodes */
- void *left_child, *right_child; /* Pointers to child nodes */
- unsigned *left_nrec, *right_nrec; /* Pointers to child # of records */
- uint8_t *left_native, *right_native; /* Pointers to childs' native records */
- H5B2_node_ptr_t *left_node_ptrs=NULL, *right_node_ptrs=NULL;/* Pointers to childs' node pointer info */
- H5B2_shared_t *shared; /* B-tree's shared info */
- hssize_t left_moved_nrec=0, right_moved_nrec=0; /* Number of records moved, for internal redistrib */
- herr_t ret_value=SUCCEED; /* Return value */
-
- FUNC_ENTER_NOAPI_NOINIT(H5B2_redistribute2)
-
- HDassert(f);
- HDassert(internal);
-
- /* Get the pointer to the shared B-tree info */
- shared=H5RC_GET_OBJ(internal->shared);
- HDassert(shared);
-
- /* Check for the kind of B-tree node to redistribute */
- if(depth>1) {
- H5B2_internal_t *left_internal; /* Pointer to left internal node */
- H5B2_internal_t *right_internal; /* Pointer to right internal node */
-
- /* Setup information for unlocking child nodes */
- child_class = H5AC_BT2_INT;
- left_addr = internal->node_ptrs[idx].addr;
- right_addr = internal->node_ptrs[idx+1].addr;
-
- /* Lock left & right B-tree child nodes */
- if (NULL == (left_internal = H5AC_protect(f, dxpl_id, child_class, left_addr, &(internal->node_ptrs[idx].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
- if (NULL == (right_internal = H5AC_protect(f, dxpl_id, child_class, right_addr, &(internal->node_ptrs[idx+1].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
-
- /* More setup for child nodes */
- left_child = left_internal;
- right_child = right_internal;
- left_nrec = &(left_internal->nrec);
- right_nrec = &(right_internal->nrec);
- left_native = left_internal->int_native;
- right_native = right_internal->int_native;
- left_node_ptrs = left_internal->node_ptrs;
- right_node_ptrs = right_internal->node_ptrs;
- } /* end if */
- else {
- H5B2_leaf_t *left_leaf; /* Pointer to left leaf node */
- H5B2_leaf_t *right_leaf; /* Pointer to right leaf node */
-
- /* Setup information for unlocking child nodes */
- child_class = H5AC_BT2_LEAF;
- left_addr = internal->node_ptrs[idx].addr;
- right_addr = internal->node_ptrs[idx+1].addr;
-
- /* Lock left & right B-tree child nodes */
- if (NULL == (left_leaf = H5AC_protect(f, dxpl_id, child_class, left_addr, &(internal->node_ptrs[idx].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
- if (NULL == (right_leaf = H5AC_protect(f, dxpl_id, child_class, right_addr, &(internal->node_ptrs[idx+1].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
-
- /* More setup for child nodes */
- left_child = left_leaf;
- right_child = right_leaf;
- left_nrec = &(left_leaf->nrec);
- right_nrec = &(right_leaf->nrec);
- left_native = left_leaf->leaf_native;
- right_native = right_leaf->leaf_native;
- } /* end else */
-
-#ifdef H5B2_DEBUG
- H5B2_assert_internal((hsize_t)0,shared,internal);
- if(depth>1) {
- H5B2_assert_internal2(internal->node_ptrs[idx].all_nrec,shared,left_child,right_child);
- H5B2_assert_internal2(internal->node_ptrs[idx+1].all_nrec,shared,right_child,left_child);
- } /* end if */
- else {
- H5B2_assert_leaf2(shared,left_child,right_child);
- H5B2_assert_leaf(shared,right_child);
- } /* end else */
-#endif /* H5B2_DEBUG */
-
- /* Determine whether to shuffle records left or right */
- if(*left_nrec<*right_nrec) {
- /* Moving record from right node to left */
-
- unsigned new_right_nrec = (*left_nrec+*right_nrec)/2; /* New number of records for right child */
- unsigned move_nrec = *right_nrec - new_right_nrec; /* Number of records to move from right node to left */
-
- /* Copy record from parent node down into left child */
- HDmemcpy(H5B2_NAT_NREC(left_native,shared,*left_nrec),H5B2_INT_NREC(internal,shared,idx),shared->type->nrec_size);
-
- /* See if we need to move records from right node */
- if(move_nrec>1)
- HDmemcpy(H5B2_NAT_NREC(left_native,shared,(*left_nrec+1)),H5B2_NAT_NREC(right_native,shared,0),shared->type->nrec_size*(move_nrec-1));
-
- /* Move record from right node into parent node */
- HDmemcpy(H5B2_INT_NREC(internal,shared,idx),H5B2_NAT_NREC(right_native,shared,(move_nrec-1)),shared->type->nrec_size);
-
- /* Slide records in right node down */
- HDmemmove(H5B2_NAT_NREC(right_native,shared,0),H5B2_NAT_NREC(right_native,shared,move_nrec),shared->type->nrec_size*new_right_nrec);
-
- /* Handle node pointers, if we have an internal node */
- if(depth>1) {
- hsize_t moved_nrec=move_nrec; /* Total number of records moved, for internal redistrib */
- unsigned u; /* Local index variable */
-
- /* Count the number of records being moved */
- for(u=0; u<move_nrec; u++)
- moved_nrec += right_node_ptrs[u].all_nrec;
- left_moved_nrec = moved_nrec;
- right_moved_nrec -= moved_nrec;
-
- /* Copy node pointers from right node to left */
- HDmemcpy(&(left_node_ptrs[*left_nrec+1]),&(right_node_ptrs[0]),sizeof(H5B2_node_ptr_t)*move_nrec);
-
- /* Slide node pointers in right node down */
- HDmemmove(&(right_node_ptrs[0]),&(right_node_ptrs[move_nrec]),sizeof(H5B2_node_ptr_t)*(new_right_nrec+1));
- } /* end if */
-
- /* Update number of records in child nodes */
- *left_nrec += move_nrec;
- *right_nrec = new_right_nrec;
- } /* end if */
- else {
- /* Moving record from left node to right */
-
- unsigned new_left_nrec = (*left_nrec+*right_nrec)/2; /* New number of records for left child */
- unsigned move_nrec = *left_nrec - new_left_nrec; /* Number of records to move from left node to right */
-
- /* Slide records in right node up */
- HDmemmove(H5B2_NAT_NREC(right_native,shared,move_nrec),
- H5B2_NAT_NREC(right_native,shared,0),
- shared->type->nrec_size*(*right_nrec));
-
- /* Copy record from parent node down into right child */
- HDmemcpy(H5B2_NAT_NREC(right_native,shared,(move_nrec-1)),H5B2_INT_NREC(internal,shared,idx),shared->type->nrec_size);
-
- /* See if we need to move records from left node */
- if(move_nrec>1)
- HDmemcpy(H5B2_NAT_NREC(right_native,shared,0),H5B2_NAT_NREC(left_native,shared,((*left_nrec-move_nrec)+1)),shared->type->nrec_size*(move_nrec-1));
-
- /* Move record from left node into parent node */
- HDmemcpy(H5B2_INT_NREC(internal,shared,idx),H5B2_NAT_NREC(left_native,shared,(*left_nrec-move_nrec)),shared->type->nrec_size);
-
- /* Handle node pointers, if we have an internal node */
- if(depth>1) {
- hsize_t moved_nrec=move_nrec; /* Total number of records moved, for internal redistrib */
- unsigned u; /* Local index variable */
-
- /* Slide node pointers in right node up */
- HDmemmove(&(right_node_ptrs[move_nrec]),&(right_node_ptrs[0]),sizeof(H5B2_node_ptr_t)*(*right_nrec+1));
-
- /* Copy node pointers from left node to right */
- HDmemcpy(&(right_node_ptrs[0]),&(left_node_ptrs[new_left_nrec+1]),sizeof(H5B2_node_ptr_t)*move_nrec);
-
- /* Count the number of records being moved */
- for(u=0; u<move_nrec; u++)
- moved_nrec += right_node_ptrs[u].all_nrec;
- left_moved_nrec -= moved_nrec;
- right_moved_nrec = moved_nrec;
- } /* end if */
-
- /* Update number of records in child nodes */
- *left_nrec = new_left_nrec;
- *right_nrec += move_nrec;
- } /* end else */
-
- /* Update # of records in child nodes */
- internal->node_ptrs[idx].node_nrec = *left_nrec;
- internal->node_ptrs[idx+1].node_nrec = *right_nrec;
-
- /* Update total # of records in child B-trees */
- if(depth>1) {
- internal->node_ptrs[idx].all_nrec += left_moved_nrec;
- internal->node_ptrs[idx+1].all_nrec += right_moved_nrec;
- } /* end if */
- else {
- internal->node_ptrs[idx].all_nrec = internal->node_ptrs[idx].node_nrec;
- internal->node_ptrs[idx+1].all_nrec = internal->node_ptrs[idx+1].node_nrec;
- } /* end else */
-
-#ifdef H5B2_DEBUG
- H5B2_assert_internal((hsize_t)0,shared,internal);
- if(depth>1) {
- H5B2_assert_internal2(internal->node_ptrs[idx].all_nrec,shared,left_child,right_child);
- H5B2_assert_internal2(internal->node_ptrs[idx+1].all_nrec,shared,right_child,left_child);
- } /* end if */
- else {
- H5B2_assert_leaf2(shared,left_child,right_child);
- H5B2_assert_leaf(shared,right_child);
- } /* end else */
-#endif /* H5B2_DEBUG */
-
- /* Release child nodes (marked as dirty) */
- if (H5AC_unprotect(f, dxpl_id, child_class, left_addr, left_child, H5AC__DIRTIED_FLAG) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree child node")
- if (H5AC_unprotect(f, dxpl_id, child_class, right_addr, right_child, H5AC__DIRTIED_FLAG) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree child node")
-
-done:
- FUNC_LEAVE_NOAPI(ret_value);
-} /* end H5B2_redistribute2 */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5B2_split2
- *
- * Purpose: Perform a 2->3 node split
- *
- * Return: Success: Non-negative
- *
- * Failure: Negative
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Feb 9 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_split2(H5F_t *f, hid_t dxpl_id, unsigned depth, H5B2_node_ptr_t *curr_node_ptr,
- unsigned *parent_cache_info_flags_ptr, H5B2_internal_t *internal,
- unsigned *internal_flags_ptr, unsigned idx)
-{
- const H5AC_class_t *child_class; /* Pointer to child node's class info */
- haddr_t left_addr, right_addr; /* Addresses of left & right child nodes */
- haddr_t middle_addr; /* Address of middle child node */
- void *left_child, *right_child; /* Pointers to left & right child nodes */
- void *middle_child; /* Pointer to middle child node */
- unsigned *left_nrec, *right_nrec; /* Pointers to left & right child # of records */
- unsigned *middle_nrec; /* Pointer to middle child # of records */
- uint8_t *left_native, *right_native; /* Pointers to left & right children's native records */
- uint8_t *middle_native; /* Pointer to middle child's native records */
- H5B2_node_ptr_t *left_node_ptrs=NULL, *right_node_ptrs=NULL;/* Pointers to childs' node pointer info */
- H5B2_node_ptr_t *middle_node_ptrs=NULL;/* Pointers to childs' node pointer info */
- H5B2_shared_t *shared; /* B-tree's shared info */
- hssize_t left_moved_nrec=0, right_moved_nrec=0; /* Number of records moved, for internal split */
- hsize_t middle_moved_nrec=0; /* Number of records moved, for internal split */
- herr_t ret_value=SUCCEED; /* Return value */
-
- FUNC_ENTER_NOAPI_NOINIT(H5B2_split2)
-
- HDassert(f);
- HDassert(parent_cache_info_flags_ptr);
- HDassert(internal);
- HDassert(internal_flags_ptr);
-
- /* Get the pointer to the shared B-tree info */
- shared=H5RC_GET_OBJ(internal->shared);
- HDassert(shared);
-
- /* Slide records in parent node up one space, to make room for promoted record */
- HDmemmove(H5B2_INT_NREC(internal,shared,idx+2),H5B2_INT_NREC(internal,shared,idx+1),shared->type->nrec_size*(internal->nrec-(idx+1)));
- HDmemmove(&(internal->node_ptrs[idx+2]),&(internal->node_ptrs[idx+1]),sizeof(H5B2_node_ptr_t)*(internal->nrec-idx));
-
- /* Check for the kind of B-tree node to split */
- if(depth>1) {
- H5B2_internal_t *left_internal; /* Pointer to left internal node */
- H5B2_internal_t *middle_internal; /* Pointer to middle internal node */
- H5B2_internal_t *right_internal; /* Pointer to right internal node */
-
- /* Setup information for unlocking child nodes */
- child_class = H5AC_BT2_INT;
- left_addr = internal->node_ptrs[idx].addr;
- right_addr = internal->node_ptrs[idx+2].addr;
-
- /* Lock left & right B-tree child nodes */
- if (NULL == (left_internal = H5AC_protect(f, dxpl_id, child_class, left_addr, &(internal->node_ptrs[idx].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
- if (NULL == (right_internal = H5AC_protect(f, dxpl_id, child_class, right_addr, &(internal->node_ptrs[idx+2].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
-
- /* Create new empty "middle" internal node */
- internal->node_ptrs[idx+1].all_nrec=internal->node_ptrs[idx+1].node_nrec=0;
- if(H5B2_create_internal(f, dxpl_id, internal->shared, &(internal->node_ptrs[idx+1]))<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTINIT, FAIL, "unable to create new internal node")
-
- /* Setup information for unlocking middle child node */
- middle_addr = internal->node_ptrs[idx+1].addr;
-
- /* Lock "middle" internal node */
- if (NULL == (middle_internal = H5AC_protect(f, dxpl_id, child_class, middle_addr, &(internal->node_ptrs[idx+1].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
-
- /* More setup for accessing child node information */
- left_child = left_internal;
- middle_child = middle_internal;
- right_child = right_internal;
- left_nrec = &(left_internal->nrec);
- middle_nrec = &(middle_internal->nrec);
- right_nrec = &(right_internal->nrec);
- left_native = left_internal->int_native;
- middle_native = middle_internal->int_native;
- right_native = right_internal->int_native;
- left_node_ptrs = left_internal->node_ptrs;
- middle_node_ptrs = middle_internal->node_ptrs;
- right_node_ptrs = right_internal->node_ptrs;
- } /* end if */
- else {
- H5B2_leaf_t *left_leaf; /* Pointer to left leaf node */
- H5B2_leaf_t *middle_leaf; /* Pointer to middle leaf node */
- H5B2_leaf_t *right_leaf; /* Pointer to right leaf node */
-
- /* Setup information for unlocking child nodes */
- child_class = H5AC_BT2_LEAF;
- left_addr = internal->node_ptrs[idx].addr;
- right_addr = internal->node_ptrs[idx+2].addr;
-
- /* Lock left & right B-tree child nodes */
- if (NULL == (left_leaf = H5AC_protect(f, dxpl_id, child_class, left_addr, &(internal->node_ptrs[idx].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
- if (NULL == (right_leaf = H5AC_protect(f, dxpl_id, child_class, right_addr, &(internal->node_ptrs[idx+2].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
-
- /* Create new empty "middle" leaf node */
- internal->node_ptrs[idx+1].all_nrec=internal->node_ptrs[idx+1].node_nrec=0;
- if(H5B2_create_leaf(f, dxpl_id, internal->shared, &(internal->node_ptrs[idx+1]))<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTINIT, FAIL, "unable to create new leaf node")
-
- /* Setup information for unlocking middle child node */
- middle_addr = internal->node_ptrs[idx+1].addr;
-
- /* Lock "middle" leaf node */
- if (NULL == (middle_leaf = H5AC_protect(f, dxpl_id, child_class, middle_addr, &(internal->node_ptrs[idx+1].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
-
- /* More setup for accessing child node information */
- left_child = left_leaf;
- middle_child = middle_leaf;
- right_child = right_leaf;
- left_nrec = &(left_leaf->nrec);
- middle_nrec = &(middle_leaf->nrec);
- right_nrec = &(right_leaf->nrec);
- left_native = left_leaf->leaf_native;
- middle_native = middle_leaf->leaf_native;
- right_native = right_leaf->leaf_native;
- } /* end else */
-
- /* Redistribute records */
- {
- /* Compute new # of records in each node */
- unsigned total_nrec = *left_nrec + *right_nrec + 1;
- unsigned new_middle_nrec = (total_nrec-2)/3;
- unsigned new_left_nrec = ((total_nrec-2)-new_middle_nrec)/2;
- unsigned new_right_nrec = (total_nrec-2)-(new_left_nrec+new_middle_nrec);
-
- /* Fill new middle node */
- {
- unsigned curr_middle_idx=0;
-
- /* Copy record(s) from left node to proper location */
- if(new_left_nrec<(*left_nrec-1)) {
- curr_middle_idx=*left_nrec-(new_left_nrec+1);
- HDmemcpy(H5B2_NAT_NREC(middle_native,shared,0),H5B2_NAT_NREC(left_native,shared,(new_left_nrec+1)),shared->type->nrec_size*curr_middle_idx);
- } /* end if */
-
- /* Copy record from parent node to proper location */
- HDmemcpy(H5B2_NAT_NREC(middle_native,shared,curr_middle_idx),H5B2_INT_NREC(internal,shared,idx),shared->type->nrec_size);
- curr_middle_idx++;
-
- /* Copy record(s) from right node to proper location */
- if(new_right_nrec<(*right_nrec-1))
- HDmemcpy(H5B2_NAT_NREC(middle_native,shared,curr_middle_idx),H5B2_NAT_NREC(right_native,shared,0),shared->type->nrec_size*(*right_nrec-(new_right_nrec+1)));
-
- /* Copy node pointers from left and right nodes into middle node */
- if(depth>1) {
- hsize_t moved_nrec; /* Total number of records moved, for internal redistrib */
- unsigned move_nptrs; /* Number of node pointers to move */
- unsigned u; /* Local index variable */
-
- /* Start tracking the total number of records in middle node */
- middle_moved_nrec = new_middle_nrec;
-
- /* Copy node pointers from left node */
- move_nptrs = (*left_nrec-new_left_nrec);
- HDmemcpy(&(middle_node_ptrs[0]),&(left_node_ptrs[new_left_nrec+1]),sizeof(H5B2_node_ptr_t)*move_nptrs);
-
- /* Count the number of records being moved from the left node */
- for(u=0, moved_nrec=0; u<move_nptrs; u++)
- moved_nrec += middle_node_ptrs[u].all_nrec;
- left_moved_nrec -= (moved_nrec+(*left_nrec-new_left_nrec));
- middle_moved_nrec += moved_nrec;
-
- /* Copy node pointers from right node */
- move_nptrs = (*right_nrec-new_right_nrec);
- HDmemcpy(&(middle_node_ptrs[(*left_nrec-new_left_nrec)]),&(right_node_ptrs[0]),sizeof(H5B2_node_ptr_t)*move_nptrs);
-
- /* Count the number of records being moved from the right node */
- for(u=0, moved_nrec=0; u<move_nptrs; u++)
- moved_nrec += right_node_ptrs[u].all_nrec;
- right_moved_nrec -= (moved_nrec+(*right_nrec-new_right_nrec));
- middle_moved_nrec += moved_nrec;
-
- /* Slide node pointers in right node down */
- HDmemmove(&(right_node_ptrs[0]),&(right_node_ptrs[move_nptrs]),sizeof(H5B2_node_ptr_t)*(new_right_nrec+1));
- } /* end if */
-
- } /* end block */
-
- /* Update # of records in middle node */
- *middle_nrec=new_middle_nrec;
-
- /* Promote records to parent node from left & right nodes */
- HDmemcpy(H5B2_INT_NREC(internal,shared,idx),H5B2_NAT_NREC(left_native,shared,new_left_nrec),shared->type->nrec_size);
- HDmemcpy(H5B2_INT_NREC(internal,shared,idx+1),H5B2_NAT_NREC(right_native,shared,(*right_nrec-(new_right_nrec+1))),shared->type->nrec_size);
-
- /* Update # of records in left node */
- *left_nrec = new_left_nrec;
-
- /* Slide records in right node to proper position */
- HDmemmove(H5B2_NAT_NREC(right_native,shared,0),H5B2_NAT_NREC(right_native,shared,(*right_nrec-new_right_nrec)),shared->type->nrec_size*new_right_nrec);
-
- /* Update # of records in right node */
- *right_nrec = new_right_nrec;
- } /* end block */
-
- /* Update # of records in child nodes */
- internal->node_ptrs[idx].node_nrec = *left_nrec;
- internal->node_ptrs[idx+1].node_nrec = *middle_nrec;
- internal->node_ptrs[idx+2].node_nrec = *right_nrec;
-
- /* Update total # of records in child B-trees */
- if(depth>1) {
- internal->node_ptrs[idx].all_nrec += left_moved_nrec;
- internal->node_ptrs[idx+1].all_nrec = middle_moved_nrec;
- internal->node_ptrs[idx+2].all_nrec += right_moved_nrec;
- } /* end if */
- else {
- internal->node_ptrs[idx].all_nrec = internal->node_ptrs[idx].node_nrec;
- internal->node_ptrs[idx+1].all_nrec = internal->node_ptrs[idx+1].node_nrec;
- internal->node_ptrs[idx+2].all_nrec = internal->node_ptrs[idx+2].node_nrec;
- } /* end else */
-
-
- /* Update # of records in parent node */
- internal->nrec++;
-
- /* Mark parent as dirty */
- *internal_flags_ptr |= H5AC__DIRTIED_FLAG;
-
- /* Update grandparent info */
- curr_node_ptr->node_nrec++;
-
- /* Mark grandparent as dirty */
- *parent_cache_info_flags_ptr |= H5AC__DIRTIED_FLAG;
-
-#ifdef H5B2_DEBUG
- H5B2_assert_internal((hsize_t)0,shared,internal);
- if(depth>1) {
- H5B2_assert_internal2(internal->node_ptrs[idx].all_nrec,shared,left_child,middle_child);
- H5B2_assert_internal2(internal->node_ptrs[idx+1].all_nrec,shared,middle_child,left_child);
- H5B2_assert_internal2(internal->node_ptrs[idx+1].all_nrec,shared,middle_child,right_child);
- H5B2_assert_internal2(internal->node_ptrs[idx+2].all_nrec,shared,right_child,middle_child);
- } /* end if */
- else {
- H5B2_assert_leaf2(shared,left_child,middle_child);
- H5B2_assert_leaf2(shared,middle_child,right_child);
- H5B2_assert_leaf(shared,right_child);
- } /* end else */
-#endif /* H5B2_DEBUG */
-
- /* Unlock child nodes (marked as dirty) */
- if (H5AC_unprotect(f, dxpl_id, child_class, left_addr, left_child, H5AC__DIRTIED_FLAG) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree child node")
- if (H5AC_unprotect(f, dxpl_id, child_class, middle_addr, middle_child, H5AC__DIRTIED_FLAG) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree child node")
- if (H5AC_unprotect(f, dxpl_id, child_class, right_addr, right_child, H5AC__DIRTIED_FLAG) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree child node")
-
-done:
- FUNC_LEAVE_NOAPI(ret_value);
-} /* end H5B2_split2 */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5B2_redistribute3
- *
- * Purpose: Redistribute records between three nodes
- *
- * Return: Success: Non-negative
- *
- * Failure: Negative
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Feb 9 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_redistribute3(H5F_t *f, hid_t dxpl_id, unsigned depth,
- H5B2_internal_t *internal, unsigned *internal_flags_ptr, unsigned idx)
-{
- const H5AC_class_t *child_class; /* Pointer to child node's class info */
- haddr_t left_addr, right_addr; /* Addresses of left & right child nodes */
- haddr_t middle_addr; /* Address of middle child node */
- void *left_child, *right_child; /* Pointers to child nodes */
- void *middle_child; /* Pointers to middle child node */
- unsigned *left_nrec, *right_nrec; /* Pointers to child # of records */
- unsigned *middle_nrec; /* Pointers to middle child # of records */
- uint8_t *left_native, *right_native; /* Pointers to childs' native records */
- uint8_t *middle_native; /* Pointers to middle child's native records */
- H5B2_shared_t *shared; /* B-tree's shared info */
- H5B2_node_ptr_t *left_node_ptrs=NULL, *right_node_ptrs=NULL;/* Pointers to childs' node pointer info */
- H5B2_node_ptr_t *middle_node_ptrs=NULL;/* Pointers to childs' node pointer info */
- hssize_t left_moved_nrec=0, right_moved_nrec=0; /* Number of records moved, for internal split */
- hssize_t middle_moved_nrec=0; /* Number of records moved, for internal split */
- herr_t ret_value=SUCCEED; /* Return value */
-
- FUNC_ENTER_NOAPI_NOINIT(H5B2_redistribute3)
-
- HDassert(f);
- HDassert(internal);
- HDassert(internal_flags_ptr);
-
- /* Get the pointer to the shared B-tree info */
- shared=H5RC_GET_OBJ(internal->shared);
- HDassert(shared);
-
- /* Check for the kind of B-tree node to redistribute */
- if(depth>1) {
- H5B2_internal_t *left_internal; /* Pointer to left internal node */
- H5B2_internal_t *middle_internal; /* Pointer to middle internal node */
- H5B2_internal_t *right_internal; /* Pointer to right internal node */
-
- /* Setup information for unlocking child nodes */
- child_class = H5AC_BT2_INT;
- left_addr = internal->node_ptrs[idx-1].addr;
- middle_addr = internal->node_ptrs[idx].addr;
- right_addr = internal->node_ptrs[idx+1].addr;
-
- /* Lock B-tree child nodes */
- if (NULL == (left_internal = H5AC_protect(f, dxpl_id, child_class, left_addr, &(internal->node_ptrs[idx-1].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
- if (NULL == (middle_internal = H5AC_protect(f, dxpl_id, child_class, middle_addr, &(internal->node_ptrs[idx].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
- if (NULL == (right_internal = H5AC_protect(f, dxpl_id, child_class, right_addr, &(internal->node_ptrs[idx+1].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
-
- /* More setup for child nodes */
- left_child = left_internal;
- middle_child = middle_internal;
- right_child = right_internal;
- left_nrec = &(left_internal->nrec);
- middle_nrec = &(middle_internal->nrec);
- right_nrec = &(right_internal->nrec);
- left_native = left_internal->int_native;
- middle_native = middle_internal->int_native;
- right_native = right_internal->int_native;
- left_node_ptrs = left_internal->node_ptrs;
- middle_node_ptrs = middle_internal->node_ptrs;
- right_node_ptrs = right_internal->node_ptrs;
- } /* end if */
- else {
- H5B2_leaf_t *left_leaf; /* Pointer to left leaf node */
- H5B2_leaf_t *middle_leaf; /* Pointer to middle leaf node */
- H5B2_leaf_t *right_leaf; /* Pointer to right leaf node */
-
- /* Setup information for unlocking child nodes */
- child_class = H5AC_BT2_LEAF;
- left_addr = internal->node_ptrs[idx-1].addr;
- middle_addr = internal->node_ptrs[idx].addr;
- right_addr = internal->node_ptrs[idx+1].addr;
-
- /* Lock B-tree child nodes */
- if (NULL == (left_leaf = H5AC_protect(f, dxpl_id, child_class, left_addr, &(internal->node_ptrs[idx-1].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
- if (NULL == (middle_leaf = H5AC_protect(f, dxpl_id, child_class, middle_addr, &(internal->node_ptrs[idx].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
- if (NULL == (right_leaf = H5AC_protect(f, dxpl_id, child_class, right_addr, &(internal->node_ptrs[idx+1].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
-
- /* More setup for child nodes */
- left_child = left_leaf;
- middle_child = middle_leaf;
- right_child = right_leaf;
- left_nrec = &(left_leaf->nrec);
- middle_nrec = &(middle_leaf->nrec);
- right_nrec = &(right_leaf->nrec);
- left_native = left_leaf->leaf_native;
- middle_native = middle_leaf->leaf_native;
- right_native = right_leaf->leaf_native;
- } /* end else */
-
- /* Redistribute records */
- {
- /* Compute new # of records in each node */
- unsigned total_nrec = *left_nrec + *middle_nrec + *right_nrec + 2;
- unsigned new_middle_nrec = (total_nrec-2)/3;
- unsigned new_left_nrec = ((total_nrec-2)-new_middle_nrec)/2;
- unsigned new_right_nrec = (total_nrec-2)-(new_left_nrec+new_middle_nrec);
- unsigned curr_middle_nrec = *middle_nrec;
-
- /* Move records into left node */
- if(new_left_nrec>*left_nrec) {
- unsigned moved_middle_nrec=0; /* Number of records moved into left node */
-
- /* Move left parent record down to left node */
- HDmemcpy(H5B2_NAT_NREC(left_native,shared,*left_nrec),H5B2_INT_NREC(internal,shared,idx-1),shared->type->nrec_size);
-
- /* Move records from middle node into left node */
- if((new_left_nrec-1)>*left_nrec) {
- moved_middle_nrec = new_left_nrec-(*left_nrec+1);
- HDmemcpy(H5B2_NAT_NREC(left_native,shared,*left_nrec+1),H5B2_NAT_NREC(middle_native,shared,0),shared->type->nrec_size*moved_middle_nrec);
- } /* end if */
-
- /* Move record from middle node up to parent node */
- HDmemcpy(H5B2_INT_NREC(internal,shared,idx-1),H5B2_NAT_NREC(middle_native,shared,moved_middle_nrec),shared->type->nrec_size);
- moved_middle_nrec++;
-
- /* Slide records in middle node down */
- HDmemmove(H5B2_NAT_NREC(middle_native,shared,0),H5B2_NAT_NREC(middle_native,shared,moved_middle_nrec),shared->type->nrec_size*(*middle_nrec-moved_middle_nrec));
-
- /* Move node pointers also if this is an internal node */
- if(depth>1) {
- hsize_t moved_nrec; /* Total number of records moved, for internal redistrib */
- unsigned move_nptrs; /* Number of node pointers to move */
- unsigned u; /* Local index variable */
-
- /* Move middle node pointers into left node */
- move_nptrs = new_left_nrec - *left_nrec;
- HDmemcpy(&(left_node_ptrs[*left_nrec+1]),&(middle_node_ptrs[0]),sizeof(H5B2_node_ptr_t)*move_nptrs);
-
- /* Count the number of records being moved into the left node */
- for(u=0, moved_nrec=0; u<move_nptrs; u++)
- moved_nrec += middle_node_ptrs[u].all_nrec;
- left_moved_nrec = moved_nrec+move_nptrs;
- middle_moved_nrec -= moved_nrec+move_nptrs;
-
- /* Slide the node pointers in middle node down */
- HDmemmove(&(middle_node_ptrs[0]),&(middle_node_ptrs[move_nptrs]),sizeof(H5B2_node_ptr_t)*((*middle_nrec-move_nptrs)+1));
- } /* end if */
-
- /* Update the current number of records in middle node */
- curr_middle_nrec -= moved_middle_nrec;
- } /* end if */
-
- /* Move records into right node */
- if(new_right_nrec>*right_nrec) {
- unsigned right_nrec_move = new_right_nrec-*right_nrec; /* Number of records to move out of right node */
-
- /* Slide records in right node up */
- HDmemmove(H5B2_NAT_NREC(right_native,shared,right_nrec_move),H5B2_NAT_NREC(right_native,shared,0),shared->type->nrec_size*(*right_nrec));
-
- /* Move right parent record down to right node */
- HDmemcpy(H5B2_NAT_NREC(right_native,shared,right_nrec_move-1),H5B2_INT_NREC(internal,shared,idx),shared->type->nrec_size);
-
- /* Move records from middle node into right node */
- if(right_nrec_move>1)
- HDmemcpy(H5B2_NAT_NREC(right_native,shared,0),H5B2_NAT_NREC(middle_native,shared,((curr_middle_nrec-right_nrec_move)+1)),shared->type->nrec_size*(right_nrec_move-1));
-
- /* Move record from middle node up to parent node */
- HDmemcpy(H5B2_INT_NREC(internal,shared,idx),H5B2_NAT_NREC(middle_native,shared,(curr_middle_nrec-right_nrec_move)),shared->type->nrec_size);
-
- /* Move node pointers also if this is an internal node */
- if(depth>1) {
- hsize_t moved_nrec; /* Total number of records moved, for internal redistrib */
- unsigned u; /* Local index variable */
-
- /* Slide the node pointers in right node up */
- HDmemmove(&(right_node_ptrs[right_nrec_move]),&(right_node_ptrs[0]),sizeof(H5B2_node_ptr_t)*(*right_nrec+1));
-
- /* Move middle node pointers into right node */
- HDmemcpy(&(right_node_ptrs[0]),&(middle_node_ptrs[(curr_middle_nrec-right_nrec_move)+1]),sizeof(H5B2_node_ptr_t)*right_nrec_move);
-
- /* Count the number of records being moved into the right node */
- for(u=0, moved_nrec=0; u<right_nrec_move; u++)
- moved_nrec += right_node_ptrs[u].all_nrec;
- right_moved_nrec = moved_nrec+right_nrec_move;
- middle_moved_nrec -= moved_nrec+right_nrec_move;
- } /* end if */
-
- /* Update the current number of records in middle node */
- curr_middle_nrec -= right_nrec_move;
- } /* end if */
-
- /* Move records out of left node */
- if(new_left_nrec<*left_nrec) {
- unsigned left_nrec_move = *left_nrec-new_left_nrec; /* Number of records to move out of left node */
-
- /* Slide middle records up */
- HDmemmove(H5B2_NAT_NREC(middle_native,shared,left_nrec_move),H5B2_NAT_NREC(middle_native,shared,0),shared->type->nrec_size*curr_middle_nrec);
-
- /* Move left parent record down to middle node */
- HDmemcpy(H5B2_NAT_NREC(middle_native,shared,left_nrec_move-1),H5B2_INT_NREC(internal,shared,idx-1),shared->type->nrec_size);
-
- /* Move left records to middle node */
- if(left_nrec_move>1)
- HDmemmove(H5B2_NAT_NREC(middle_native,shared,0),H5B2_NAT_NREC(left_native,shared,new_left_nrec+1),shared->type->nrec_size*(left_nrec_move-1));
-
- /* Move left parent record up from left node */
- HDmemcpy(H5B2_INT_NREC(internal,shared,idx-1),H5B2_NAT_NREC(left_native,shared,new_left_nrec),shared->type->nrec_size);
-
- /* Move node pointers also if this is an internal node */
- if(depth>1) {
- hsize_t moved_nrec; /* Total number of records moved, for internal redistrib */
- unsigned u; /* Local index variable */
-
- /* Slide the node pointers in middle node up */
- HDmemmove(&(middle_node_ptrs[left_nrec_move]),&(middle_node_ptrs[0]),sizeof(H5B2_node_ptr_t)*(curr_middle_nrec+1));
-
- /* Move left node pointers into middle node */
- HDmemcpy(&(middle_node_ptrs[0]),&(left_node_ptrs[new_left_nrec+1]),sizeof(H5B2_node_ptr_t)*left_nrec_move);
-
- /* Count the number of records being moved into the left node */
- for(u=0, moved_nrec=0; u<left_nrec_move; u++)
- moved_nrec += middle_node_ptrs[u].all_nrec;
- left_moved_nrec -= moved_nrec+left_nrec_move;
- middle_moved_nrec += moved_nrec+left_nrec_move;
- } /* end if */
-
- /* Update the current number of records in middle node */
- curr_middle_nrec += left_nrec_move;
- } /* end if */
-
- /* Move records out of right node */
- if(new_right_nrec<*right_nrec) {
- unsigned right_nrec_move = *right_nrec-new_right_nrec; /* Number of records to move out of right node */
-
- /* Move right parent record down to middle node */
- HDmemcpy(H5B2_NAT_NREC(middle_native,shared,curr_middle_nrec),H5B2_INT_NREC(internal,shared,idx),shared->type->nrec_size);
-
- /* Move right records to middle node */
- HDmemmove(H5B2_NAT_NREC(middle_native,shared,(curr_middle_nrec+1)),H5B2_NAT_NREC(right_native,shared,0),shared->type->nrec_size*(right_nrec_move-1));
-
- /* Move right parent record up from right node */
- HDmemcpy(H5B2_INT_NREC(internal,shared,idx),H5B2_NAT_NREC(right_native,shared,right_nrec_move-1),shared->type->nrec_size);
-
- /* Slide right records down */
- HDmemmove(H5B2_NAT_NREC(right_native,shared,0),H5B2_NAT_NREC(right_native,shared,right_nrec_move),shared->type->nrec_size*new_right_nrec);
-
- /* Move node pointers also if this is an internal node */
- if(depth>1) {
- hsize_t moved_nrec; /* Total number of records moved, for internal redistrib */
- unsigned u; /* Local index variable */
-
- /* Move right node pointers into middle node */
- HDmemcpy(&(middle_node_ptrs[curr_middle_nrec+1]),&(right_node_ptrs[0]),sizeof(H5B2_node_ptr_t)*right_nrec_move);
-
- /* Count the number of records being moved into the right node */
- for(u=0, moved_nrec=0; u<right_nrec_move; u++)
- moved_nrec += right_node_ptrs[u].all_nrec;
- right_moved_nrec -= moved_nrec+right_nrec_move;
- middle_moved_nrec += moved_nrec+right_nrec_move;
-
- /* Slide the node pointers in right node down */
- HDmemmove(&(right_node_ptrs[0]),&(right_node_ptrs[right_nrec_move]),sizeof(H5B2_node_ptr_t)*(new_right_nrec+1));
- } /* end if */
- } /* end if */
-
- /* Update # of records in nodes */
- *left_nrec = new_left_nrec;
- *middle_nrec = new_middle_nrec;
- *right_nrec = new_right_nrec;
- } /* end block */
-
- /* Update # of records in child nodes */
- internal->node_ptrs[idx-1].node_nrec = *left_nrec;
- internal->node_ptrs[idx].node_nrec = *middle_nrec;
- internal->node_ptrs[idx+1].node_nrec = *right_nrec;
-
- /* Update total # of records in child B-trees */
- if(depth>1) {
- internal->node_ptrs[idx-1].all_nrec += left_moved_nrec;
- internal->node_ptrs[idx].all_nrec += middle_moved_nrec;
- internal->node_ptrs[idx+1].all_nrec += right_moved_nrec;
- } /* end if */
- else {
- internal->node_ptrs[idx-1].all_nrec = internal->node_ptrs[idx-1].node_nrec;
- internal->node_ptrs[idx].all_nrec = internal->node_ptrs[idx].node_nrec;
- internal->node_ptrs[idx+1].all_nrec = internal->node_ptrs[idx+1].node_nrec;
- } /* end else */
-
- /* Mark parent as dirty */
- *internal_flags_ptr |= H5AC__DIRTIED_FLAG;
-
-#ifdef QAK
-{
- unsigned u;
-
- HDfprintf(stderr,"%s: Internal records:\n",FUNC);
- for(u=0; u<internal->nrec; u++) {
- HDfprintf(stderr,"%s: u=%u\n",FUNC,u);
- (shared->type->debug)(stderr,f,dxpl_id,3,4,H5B2_INT_NREC(internal,shared,u),NULL);
- } /* end for */
-
- HDfprintf(stderr,"%s: Left Child records:\n",FUNC);
- for(u=0; u<*left_nrec; u++) {
- HDfprintf(stderr,"%s: u=%u\n",FUNC,u);
- (shared->type->debug)(stderr,f,dxpl_id,3,4,H5B2_NAT_NREC(left_native,shared,u),NULL);
- } /* end for */
-
- HDfprintf(stderr,"%s: Middle Child records:\n",FUNC);
- for(u=0; u<*middle_nrec; u++) {
- HDfprintf(stderr,"%s: u=%u\n",FUNC,u);
- (shared->type->debug)(stderr,f,dxpl_id,3,4,H5B2_NAT_NREC(middle_native,shared,u),NULL);
- } /* end for */
-
- HDfprintf(stderr,"%s: Right Child records:\n",FUNC);
- for(u=0; u<*right_nrec; u++) {
- HDfprintf(stderr,"%s: u=%u\n",FUNC,u);
- (shared->type->debug)(stderr,f,dxpl_id,3,4,H5B2_NAT_NREC(right_native,shared,u),NULL);
- } /* end for */
-
- for(u=0; u<internal->nrec+1; u++)
- HDfprintf(stderr,"%s: internal->node_ptrs[%u]=(%Hu/%u/%a)\n",FUNC,u,internal->node_ptrs[u].all_nrec,internal->node_ptrs[u].node_nrec,internal->node_ptrs[u].addr);
- if(depth>1) {
- for(u=0; u<*left_nrec+1; u++)
- HDfprintf(stderr,"%s: left_node_ptr[%u]=(%Hu/%u/%a)\n",FUNC,u,left_node_ptrs[u].all_nrec,left_node_ptrs[u].node_nrec,left_node_ptrs[u].addr);
- for(u=0; u<*middle_nrec+1; u++)
- HDfprintf(stderr,"%s: middle_node_ptr[%u]=(%Hu/%u/%a)\n",FUNC,u,middle_node_ptrs[u].all_nrec,middle_node_ptrs[u].node_nrec,middle_node_ptrs[u].addr);
- for(u=0; u<*right_nrec+1; u++)
- HDfprintf(stderr,"%s: right_node_ptr[%u]=(%Hu/%u/%a)\n",FUNC,u,right_node_ptrs[u].all_nrec,right_node_ptrs[u].node_nrec,right_node_ptrs[u].addr);
- } /* end if */
-}
-#endif /* QAK */
-#ifdef H5B2_DEBUG
- H5B2_assert_internal((hsize_t)0,shared,internal);
- if(depth>1) {
- H5B2_assert_internal2(internal->node_ptrs[idx-1].all_nrec,shared,left_child,middle_child);
- H5B2_assert_internal2(internal->node_ptrs[idx].all_nrec,shared,middle_child,left_child);
- H5B2_assert_internal2(internal->node_ptrs[idx].all_nrec,shared,middle_child,right_child);
- H5B2_assert_internal2(internal->node_ptrs[idx+1].all_nrec,shared,right_child,middle_child);
- } /* end if */
- else {
- H5B2_assert_leaf2(shared,left_child,middle_child);
- H5B2_assert_leaf2(shared,middle_child,right_child);
- H5B2_assert_leaf(shared,right_child);
- } /* end else */
-#endif /* H5B2_DEBUG */
-
- /* Unlock child nodes (marked as dirty) */
- if (H5AC_unprotect(f, dxpl_id, child_class, left_addr, left_child, H5AC__DIRTIED_FLAG) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree child node")
- if (H5AC_unprotect(f, dxpl_id, child_class, middle_addr, middle_child, H5AC__DIRTIED_FLAG) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree child node")
- if (H5AC_unprotect(f, dxpl_id, child_class, right_addr, right_child, H5AC__DIRTIED_FLAG) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree child node")
-
-done:
- FUNC_LEAVE_NOAPI(ret_value);
-} /* end H5B2_redistribute3 */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5B2_split3
- *
- * Purpose: Perform a 3->4 node split
- *
- * Return: Success: Non-negative
- *
- * Failure: Negative
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Feb 10 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_split3(H5F_t *f, hid_t dxpl_id, unsigned depth,
- H5B2_node_ptr_t *curr_node_ptr,
- unsigned *parent_cache_info_flags_ptr, H5B2_internal_t *internal,
- unsigned *internal_flags_ptr, unsigned idx)
-{
- const H5AC_class_t *child_class; /* Pointer to child node's class info */
- haddr_t left_addr, right_addr; /* Addresses of left & right child nodes */
- haddr_t middle_addr; /* Address of middle child node */
- haddr_t new_addr; /* Address of new child node */
- void *left_child, *right_child; /* Pointers to left & right child nodes */
- void *middle_child; /* Pointer to middle child node */
- void *new_child; /* Pointer to new child node */
- unsigned *left_nrec, *right_nrec; /* Pointers to left & right child # of records */
- unsigned *middle_nrec; /* Pointer to middle child # of records */
- unsigned *new_nrec; /* Pointer to new child # of records */
- uint8_t *left_native, *right_native; /* Pointers to left & right children's native records */
- uint8_t *middle_native; /* Pointer to middle child's native records */
- uint8_t *new_native; /* Pointer to new child's native records */
- H5B2_shared_t *shared; /* B-tree's shared info */
- H5B2_node_ptr_t *left_node_ptrs=NULL, *right_node_ptrs=NULL;/* Pointers to childs' node pointer info */
- H5B2_node_ptr_t *middle_node_ptrs=NULL;/* Pointers to childs' node pointer info */
- H5B2_node_ptr_t *new_node_ptrs=NULL;/* Pointers to childs' node pointer info */
- hssize_t left_moved_nrec=0, right_moved_nrec=0; /* Number of records moved, for internal split */
- hssize_t middle_moved_nrec=0; /* Number of records moved, for internal split */
- hsize_t new_moved_nrec=0; /* Number of records moved, for internal split */
- herr_t ret_value=SUCCEED; /* Return value */
-
- FUNC_ENTER_NOAPI_NOINIT(H5B2_split3)
-
- HDassert(f);
- HDassert(internal);
-
- /* Get the pointer to the shared B-tree info */
- shared=H5RC_GET_OBJ(internal->shared);
- HDassert(shared);
-
- /* Slide records in parent node up one space, to make room for promoted record */
- HDmemmove(H5B2_INT_NREC(internal,shared,idx+2),H5B2_INT_NREC(internal,shared,idx+1),shared->type->nrec_size*(internal->nrec-(idx+1)));
- HDmemmove(&(internal->node_ptrs[idx+2]),&(internal->node_ptrs[idx+1]),sizeof(H5B2_node_ptr_t)*(internal->nrec-idx));
-
- /* Check for the kind of B-tree node to split */
- if(depth>1) {
- H5B2_internal_t *left_internal; /* Pointer to left internal node */
- H5B2_internal_t *right_internal; /* Pointer to right internal node */
- H5B2_internal_t *middle_internal; /* Pointer to middle internal node */
- H5B2_internal_t *new_internal; /* Pointer to new internal node */
-
- /* Setup information for unlocking child nodes */
- child_class = H5AC_BT2_INT;
- left_addr = internal->node_ptrs[idx-1].addr;
- middle_addr = internal->node_ptrs[idx].addr;
- right_addr = internal->node_ptrs[idx+2].addr;
-
- /* Lock left & right B-tree child nodes */
- if (NULL == (left_internal = H5AC_protect(f, dxpl_id, child_class, left_addr, &(internal->node_ptrs[idx-1].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
- if (NULL == (middle_internal = H5AC_protect(f, dxpl_id, child_class, middle_addr, &(internal->node_ptrs[idx].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
- if (NULL == (right_internal = H5AC_protect(f, dxpl_id, child_class, right_addr, &(internal->node_ptrs[idx+2].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
-
- /* Create new empty internal node */
- internal->node_ptrs[idx+1].all_nrec=internal->node_ptrs[idx+1].node_nrec=0;
- if(H5B2_create_internal(f, dxpl_id, internal->shared, &(internal->node_ptrs[idx+1]))<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTINIT, FAIL, "unable to create new internal node")
-
- /* Setup information for unlocking middle child node */
- new_addr = internal->node_ptrs[idx+1].addr;
-
- /* Lock "new" internal node */
- if (NULL == (new_internal = H5AC_protect(f, dxpl_id, child_class, new_addr, &(internal->node_ptrs[idx+1].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
-
- /* More setup for accessing child node information */
- left_child = left_internal;
- middle_child = middle_internal;
- new_child = new_internal;
- right_child = right_internal;
- left_nrec = &(left_internal->nrec);
- middle_nrec = &(middle_internal->nrec);
- new_nrec = &(new_internal->nrec);
- right_nrec = &(right_internal->nrec);
- left_native = left_internal->int_native;
- middle_native = middle_internal->int_native;
- new_native = new_internal->int_native;
- right_native = right_internal->int_native;
- left_node_ptrs = left_internal->node_ptrs;
- middle_node_ptrs = middle_internal->node_ptrs;
- right_node_ptrs = right_internal->node_ptrs;
- new_node_ptrs = new_internal->node_ptrs;
- } /* end if */
- else {
- H5B2_leaf_t *left_leaf; /* Pointer to left leaf node */
- H5B2_leaf_t *right_leaf; /* Pointer to right leaf node */
- H5B2_leaf_t *middle_leaf; /* Pointer to middle leaf node */
- H5B2_leaf_t *new_leaf; /* Pointer to new leaf node */
-
- /* Setup information for unlocking child nodes */
- child_class = H5AC_BT2_LEAF;
- left_addr = internal->node_ptrs[idx-1].addr;
- middle_addr = internal->node_ptrs[idx].addr;
- right_addr = internal->node_ptrs[idx+2].addr;
-
- /* Lock left & right B-tree child nodes */
- if (NULL == (left_leaf = H5AC_protect(f, dxpl_id, child_class, left_addr, &(internal->node_ptrs[idx-1].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
- if (NULL == (middle_leaf = H5AC_protect(f, dxpl_id, child_class, middle_addr, &(internal->node_ptrs[idx].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
- if (NULL == (right_leaf = H5AC_protect(f, dxpl_id, child_class, right_addr, &(internal->node_ptrs[idx+2].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
-
- /* Create new empty leaf node */
- internal->node_ptrs[idx+1].all_nrec=internal->node_ptrs[idx+1].node_nrec=0;
- if(H5B2_create_leaf(f, dxpl_id, internal->shared, &(internal->node_ptrs[idx+1]))<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTINIT, FAIL, "unable to create new leaf node")
-
- /* Setup information for unlocking middle child node */
- new_addr = internal->node_ptrs[idx+1].addr;
-
- /* Lock "new" leaf node */
- if (NULL == (new_leaf = H5AC_protect(f, dxpl_id, child_class, new_addr, &(internal->node_ptrs[idx+1].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
-
- /* More setup for accessing child node information */
- left_child = left_leaf;
- middle_child = middle_leaf;
- new_child = new_leaf;
- right_child = right_leaf;
- left_nrec = &(left_leaf->nrec);
- middle_nrec = &(middle_leaf->nrec);
- new_nrec = &(new_leaf->nrec);
- right_nrec = &(right_leaf->nrec);
- left_native = left_leaf->leaf_native;
- middle_native = middle_leaf->leaf_native;
- new_native = new_leaf->leaf_native;
- right_native = right_leaf->leaf_native;
- } /* end else */
-
- /* Redistribute records */
- {
- /* Compute new # of records in each node */
- unsigned total_nrec = *left_nrec + *middle_nrec + *right_nrec + 2;
- unsigned new_new_nrec = (total_nrec-3)/4;
- unsigned new_middle_nrec = ((total_nrec-3)-new_new_nrec)/3;
- unsigned new_left_nrec = ((total_nrec-3)-(new_middle_nrec+new_new_nrec))/2;
- unsigned new_right_nrec = (total_nrec-3)-(new_left_nrec+new_middle_nrec+new_new_nrec);
-
- /* Partially fill new node from right node */
- {
- unsigned right_nrec_move = *right_nrec-new_right_nrec;
-
- /* Move right record down from parent into new node */
- HDmemcpy(H5B2_NAT_NREC(new_native,shared,(new_new_nrec-right_nrec_move)),H5B2_INT_NREC(internal,shared,idx),shared->type->nrec_size);
-
- /* Move records from right node to new node */
- HDmemcpy(H5B2_NAT_NREC(new_native,shared,((new_new_nrec-right_nrec_move)+1)),H5B2_NAT_NREC(right_native,shared,0),shared->type->nrec_size*(right_nrec_move-1));
-
- /* Move record from right node up to parent node */
- HDmemcpy(H5B2_INT_NREC(internal,shared,idx+1),H5B2_NAT_NREC(right_native,shared,(right_nrec_move-1)),shared->type->nrec_size);
-
- /* Slide records in right node down */
- HDmemmove(H5B2_NAT_NREC(right_native,shared,0),H5B2_NAT_NREC(right_native,shared,right_nrec_move),shared->type->nrec_size*new_right_nrec);
-
- /* Move node pointers also if this is an internal node */
- if(depth>1) {
- hsize_t moved_nrec; /* Total number of records moved, for internal redistrib */
- unsigned u; /* Local index variable */
-
- /* Move right node pointers into new node */
- HDmemcpy(&(new_node_ptrs[(new_new_nrec-right_nrec_move)+1]),&(right_node_ptrs[0]),sizeof(H5B2_node_ptr_t)*right_nrec_move);
-
- /* Count the number of records being moved into the new node */
- for(u=0, moved_nrec=0; u<right_nrec_move; u++)
- moved_nrec += right_node_ptrs[u].all_nrec;
- right_moved_nrec -= (moved_nrec+right_nrec_move);
- new_moved_nrec += (moved_nrec+right_nrec_move);
-
- /* Slide the node pointers in right node down */
- HDmemmove(&(right_node_ptrs[0]),&(right_node_ptrs[right_nrec_move]),sizeof(H5B2_node_ptr_t)*(new_right_nrec+1));
- } /* end if */
- } /* end block */
-
- /* Finish filling new node from middle node */
- {
- unsigned new_nrec_move = new_new_nrec-(*right_nrec-new_right_nrec);
-
- /* Move records from middle node to new node */
- HDmemcpy(H5B2_NAT_NREC(new_native,shared,0),H5B2_NAT_NREC(middle_native,shared,(*middle_nrec-new_nrec_move)),shared->type->nrec_size*new_nrec_move);
-
- /* Move record from middle node up to parent node */
- HDmemcpy(H5B2_INT_NREC(internal,shared,idx),H5B2_NAT_NREC(middle_native,shared,((*middle_nrec-new_nrec_move)-1)),shared->type->nrec_size);
-
- /* Slide records in middle node up */
- HDmemmove(H5B2_NAT_NREC(middle_native,shared,(new_middle_nrec-((*middle_nrec-new_nrec_move)-1))),H5B2_NAT_NREC(middle_native,shared,0),shared->type->nrec_size*(*middle_nrec-(new_nrec_move+1)));
-
- /* Move node pointers also if this is an internal node */
- if(depth>1) {
- hsize_t moved_nrec; /* Total number of records moved, for internal redistrib */
- unsigned u; /* Local index variable */
-
- /* Move middle node pointers into new node */
- HDmemcpy(&(new_node_ptrs[0]),&(middle_node_ptrs[(*middle_nrec-new_nrec_move)]),sizeof(H5B2_node_ptr_t)*(new_nrec_move+1));
-
- /* Count the number of records being moved into the new node */
- for(u=0, moved_nrec=0; u<new_nrec_move+1; u++)
- moved_nrec += new_node_ptrs[u].all_nrec;
- middle_moved_nrec -= (moved_nrec+new_nrec_move+1);
- new_moved_nrec += (moved_nrec+new_nrec_move);
-
- /* Slide the node pointers in middle node up */
- HDmemmove(&(middle_node_ptrs[(new_middle_nrec-((*middle_nrec-new_nrec_move)-1))]),&(middle_node_ptrs[0]),sizeof(H5B2_node_ptr_t)*(*middle_nrec-new_nrec_move));
- } /* end if */
- } /* end block */
-
- /* Fill middle node from left node */
- {
- unsigned left_nrec_move = *left_nrec - new_left_nrec;
-
- /* Move record from parent node down to middle node */
- HDmemcpy(H5B2_NAT_NREC(middle_native,shared,(left_nrec_move-1)),H5B2_INT_NREC(internal,shared,idx-1),shared->type->nrec_size);
-
- /* Move records from left node to middle node */
- HDmemcpy(H5B2_NAT_NREC(middle_native,shared,0),H5B2_NAT_NREC(left_native,shared,(new_left_nrec+1)),shared->type->nrec_size*(left_nrec_move-1));
-
- /* Move node pointers also if this is an internal node */
- if(depth>1) {
- hsize_t moved_nrec; /* Total number of records moved, for internal redistrib */
- unsigned u; /* Local index variable */
-
- /* Move left node pointers into middle node */
- HDmemcpy(&(middle_node_ptrs[0]),&(left_node_ptrs[new_left_nrec+1]),sizeof(H5B2_node_ptr_t)*left_nrec_move);
-
- /* Count the number of records being moved into the middle node */
- for(u=0, moved_nrec=0; u<left_nrec_move; u++)
- moved_nrec += middle_node_ptrs[u].all_nrec;
- left_moved_nrec -= (moved_nrec+left_nrec_move);
- middle_moved_nrec += (moved_nrec+left_nrec_move);
- } /* end if */
- }
-
- /* Move record from left node to parent node */
- HDmemcpy(H5B2_INT_NREC(internal,shared,idx-1),H5B2_NAT_NREC(left_native,shared,new_left_nrec),shared->type->nrec_size);
-
- /* Update # of records in nodes */
- *left_nrec = new_left_nrec;
- *middle_nrec = new_middle_nrec;
- *new_nrec = new_new_nrec;
- *right_nrec = new_right_nrec;
- } /* end block */
-
- /* Update # of records in child nodes */
- internal->node_ptrs[idx-1].node_nrec = *left_nrec;
- internal->node_ptrs[idx].node_nrec = *middle_nrec;
- internal->node_ptrs[idx+1].node_nrec = *new_nrec;
- internal->node_ptrs[idx+2].node_nrec = *right_nrec;
-
- /* Update total # of records in child B-trees */
- if(depth>1) {
- internal->node_ptrs[idx-1].all_nrec += left_moved_nrec;
- internal->node_ptrs[idx].all_nrec += middle_moved_nrec;
- internal->node_ptrs[idx+1].all_nrec = new_moved_nrec;
- internal->node_ptrs[idx+2].all_nrec += right_moved_nrec;
- } /* end if */
- else {
- internal->node_ptrs[idx-1].all_nrec = internal->node_ptrs[idx-1].node_nrec;
- internal->node_ptrs[idx].all_nrec = internal->node_ptrs[idx].node_nrec;
- internal->node_ptrs[idx+1].all_nrec = internal->node_ptrs[idx+1].node_nrec;
- internal->node_ptrs[idx+2].all_nrec = internal->node_ptrs[idx+2].node_nrec;
- } /* end else */
-
- /* Update # of records in parent node */
- internal->nrec++;
-
- /* Mark parent as dirty */
- *internal_flags_ptr |= H5AC__DIRTIED_FLAG;
-
- /* Update grandparent info */
- curr_node_ptr->node_nrec++;
-
- /* Mark grandparent as dirty */
- *parent_cache_info_flags_ptr |= H5AC__DIRTIED_FLAG;
-
-#ifdef H5B2_DEBUG
- H5B2_assert_internal((hsize_t)0,shared,internal);
- if(depth>1) {
- H5B2_assert_internal2(internal->node_ptrs[idx-1].all_nrec,shared,left_child,middle_child);
- H5B2_assert_internal2(internal->node_ptrs[idx].all_nrec,shared,middle_child,left_child);
- H5B2_assert_internal2(internal->node_ptrs[idx].all_nrec,shared,middle_child,new_child);
- H5B2_assert_internal2(internal->node_ptrs[idx+1].all_nrec,shared,new_child,middle_child);
- H5B2_assert_internal2(internal->node_ptrs[idx+1].all_nrec,shared,new_child,right_child);
- H5B2_assert_internal2(internal->node_ptrs[idx+2].all_nrec,shared,right_child,new_child);
- } /* end if */
- else {
- H5B2_assert_leaf2(shared,left_child,middle_child);
- H5B2_assert_leaf2(shared,middle_child,new_child);
- H5B2_assert_leaf2(shared,new_child,right_child);
- H5B2_assert_leaf(shared,right_child);
- } /* end else */
-#endif /* H5B2_DEBUG */
-
- /* Unlock child nodes (mark as dirty) */
- if (H5AC_unprotect(f, dxpl_id, child_class, left_addr, left_child, H5AC__DIRTIED_FLAG) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree child node")
- if (H5AC_unprotect(f, dxpl_id, child_class, middle_addr, middle_child, H5AC__DIRTIED_FLAG) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree child node")
- if (H5AC_unprotect(f, dxpl_id, child_class, new_addr, new_child, H5AC__DIRTIED_FLAG) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree child node")
- if (H5AC_unprotect(f, dxpl_id, child_class, right_addr, right_child, H5AC__DIRTIED_FLAG) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree child node")
-
-done:
- FUNC_LEAVE_NOAPI(ret_value);
-} /* end H5B2_split3 */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5B2_merge2
- *
- * Purpose: Perform a 2->1 node merge
- *
- * Return: Success: Non-negative
- *
- * Failure: Negative
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Mar 4 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_merge2(H5F_t *f, hid_t dxpl_id, unsigned depth,
- H5B2_node_ptr_t *curr_node_ptr, unsigned *parent_cache_info_flags_ptr,
- H5B2_internal_t *internal, unsigned *internal_flags_ptr, unsigned idx)
-{
- const H5AC_class_t *child_class; /* Pointer to child node's class info */
- haddr_t left_addr, right_addr; /* Addresses of left & right child nodes */
- void *left_child, *right_child; /* Pointers to left & right child nodes */
- unsigned *left_nrec, *right_nrec; /* Pointers to left & right child # of records */
- uint8_t *left_native, *right_native; /* Pointers to left & right children's native records */
- H5B2_node_ptr_t *left_node_ptrs=NULL, *right_node_ptrs=NULL;/* Pointers to childs' node pointer info */
- H5B2_shared_t *shared; /* B-tree's shared info */
- herr_t ret_value=SUCCEED; /* Return value */
-
- FUNC_ENTER_NOAPI_NOINIT(H5B2_merge2)
-
- HDassert(f);
- HDassert(curr_node_ptr);
- HDassert(parent_cache_info_flags_ptr);
- HDassert(internal);
- HDassert(internal_flags_ptr);
-
- /* Get the pointer to the shared B-tree info */
- shared=H5RC_GET_OBJ(internal->shared);
- HDassert(shared);
-
- /* Check for the kind of B-tree node to split */
- if(depth>1) {
- H5B2_internal_t *left_internal; /* Pointer to left internal node */
- H5B2_internal_t *right_internal; /* Pointer to right internal node */
-
- /* Setup information for unlocking child nodes */
- child_class = H5AC_BT2_INT;
- left_addr = internal->node_ptrs[idx].addr;
- right_addr = internal->node_ptrs[idx+1].addr;
-
- /* Lock left & right B-tree child nodes */
- if (NULL == (left_internal = H5AC_protect(f, dxpl_id, child_class, left_addr, &(internal->node_ptrs[idx].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
- if (NULL == (right_internal = H5AC_protect(f, dxpl_id, child_class, right_addr, &(internal->node_ptrs[idx+1].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
-
- /* More setup for accessing child node information */
- left_child = left_internal;
- right_child = right_internal;
- left_nrec = &(left_internal->nrec);
- right_nrec = &(right_internal->nrec);
- left_native = left_internal->int_native;
- right_native = right_internal->int_native;
- left_node_ptrs = left_internal->node_ptrs;
- right_node_ptrs = right_internal->node_ptrs;
- } /* end if */
- else {
- H5B2_leaf_t *left_leaf; /* Pointer to left leaf node */
- H5B2_leaf_t *right_leaf; /* Pointer to right leaf node */
-
- /* Setup information for unlocking child nodes */
- child_class = H5AC_BT2_LEAF;
- left_addr = internal->node_ptrs[idx].addr;
- right_addr = internal->node_ptrs[idx+1].addr;
-
- /* Lock left & right B-tree child nodes */
- if (NULL == (left_leaf = H5AC_protect(f, dxpl_id, child_class, left_addr, &(internal->node_ptrs[idx].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
- if (NULL == (right_leaf = H5AC_protect(f, dxpl_id, child_class, right_addr, &(internal->node_ptrs[idx+1].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
-
- /* More setup for accessing child node information */
- left_child = left_leaf;
- right_child = right_leaf;
- left_nrec = &(left_leaf->nrec);
- right_nrec = &(right_leaf->nrec);
- left_native = left_leaf->leaf_native;
- right_native = right_leaf->leaf_native;
- } /* end else */
-
- /* Redistribute records into left node */
- {
- /* Copy record from parent node to proper location */
- HDmemcpy(H5B2_NAT_NREC(left_native,shared,*left_nrec),H5B2_INT_NREC(internal,shared,idx),shared->type->nrec_size);
-
- /* Copy records from right node to left node */
- HDmemcpy(H5B2_NAT_NREC(left_native,shared,*left_nrec+1),H5B2_NAT_NREC(right_native,shared,0),shared->type->nrec_size*(*right_nrec));
-
- /* Copy node pointers from right node into left node */
- if(depth>1)
- HDmemcpy(&(left_node_ptrs[*left_nrec+1]),&(right_node_ptrs[0]),sizeof(H5B2_node_ptr_t)*(*right_nrec+1));
-
- /* Update # of records in left node */
- *left_nrec += *right_nrec + 1;
- } /* end block */
-
- /* Update # of records in child nodes */
- internal->node_ptrs[idx].node_nrec = *left_nrec;
-
- /* Update total # of records in child B-trees */
- internal->node_ptrs[idx].all_nrec += internal->node_ptrs[idx+1].all_nrec + 1;
-
- /* Slide records in parent node down, to eliminate demoted record */
- if((idx+1) < internal->nrec) {
- HDmemmove(H5B2_INT_NREC(internal,shared,idx),H5B2_INT_NREC(internal,shared,idx+1),shared->type->nrec_size*(internal->nrec-(idx+1)));
- HDmemmove(&(internal->node_ptrs[idx+1]),&(internal->node_ptrs[idx+2]),sizeof(H5B2_node_ptr_t)*(internal->nrec-(idx+1)));
- } /* end if */
-
- /* Update # of records in parent node */
- internal->nrec--;
-
- /* Mark parent as dirty */
- *internal_flags_ptr |= H5AC__DIRTIED_FLAG;
-
- /* Update grandparent info */
- curr_node_ptr->node_nrec--;
-
- /* Mark grandparent as dirty */
- *parent_cache_info_flags_ptr |= H5AC__DIRTIED_FLAG;
-
-#ifdef H5B2_DEBUG
- H5B2_assert_internal((hsize_t)0,shared,internal);
- if(depth>1) {
- H5B2_assert_internal(internal->node_ptrs[idx].all_nrec,shared,left_child);
- } /* end if */
- else {
- H5B2_assert_leaf(shared,left_child);
- } /* end else */
-#endif /* H5B2_DEBUG */
-
- /* Unlock left node (marked as dirty) */
- if (H5AC_unprotect(f, dxpl_id, child_class, left_addr, left_child, H5AC__DIRTIED_FLAG) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree child node")
-
- /* Delete right node & remove from cache (marked as dirty) */
- if (H5MF_xfree(f, H5FD_MEM_BTREE, dxpl_id, right_addr, (hsize_t)shared->node_size)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTFREE, FAIL, "unable to free B-tree leaf node")
- if (H5AC_unprotect(f, dxpl_id, child_class, right_addr, right_child, H5AC__DIRTIED_FLAG|H5AC__DELETED_FLAG) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree child node")
-
-done:
- FUNC_LEAVE_NOAPI(ret_value);
-} /* end H5B2_merge2 */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5B2_merge3
- *
- * Purpose: Perform a 3->2 node merge
- *
- * Return: Success: Non-negative
- *
- * Failure: Negative
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Mar 4 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_merge3(H5F_t *f, hid_t dxpl_id, unsigned depth,
- H5B2_node_ptr_t *curr_node_ptr, unsigned *parent_cache_info_flags_ptr,
- H5B2_internal_t *internal, unsigned *internal_flags_ptr, unsigned idx)
-{
- const H5AC_class_t *child_class; /* Pointer to child node's class info */
- haddr_t left_addr, right_addr; /* Addresses of left & right child nodes */
- haddr_t middle_addr; /* Address of middle child node */
- void *left_child, *right_child; /* Pointers to left & right child nodes */
- void *middle_child; /* Pointer to middle child node */
- unsigned *left_nrec, *right_nrec; /* Pointers to left & right child # of records */
- unsigned *middle_nrec; /* Pointer to middle child # of records */
- uint8_t *left_native, *right_native; /* Pointers to left & right children's native records */
- uint8_t *middle_native; /* Pointer to middle child's native records */
- H5B2_node_ptr_t *left_node_ptrs=NULL, *right_node_ptrs=NULL;/* Pointers to childs' node pointer info */
- H5B2_node_ptr_t *middle_node_ptrs=NULL;/* Pointer to child's node pointer info */
- H5B2_shared_t *shared; /* B-tree's shared info */
- hsize_t middle_moved_nrec; /* Number of records moved, for internal split */
- herr_t ret_value=SUCCEED; /* Return value */
-
- FUNC_ENTER_NOAPI_NOINIT(H5B2_merge3)
-
- HDassert(f);
- HDassert(curr_node_ptr);
- HDassert(parent_cache_info_flags_ptr);
- HDassert(internal);
- HDassert(internal_flags_ptr);
-
- /* Get the pointer to the shared B-tree info */
- shared=H5RC_GET_OBJ(internal->shared);
- HDassert(shared);
-
- /* Check for the kind of B-tree node to split */
- if(depth>1) {
- H5B2_internal_t *left_internal; /* Pointer to left internal node */
- H5B2_internal_t *middle_internal; /* Pointer to middle internal node */
- H5B2_internal_t *right_internal; /* Pointer to right internal node */
-
- /* Setup information for unlocking child nodes */
- child_class = H5AC_BT2_INT;
- left_addr = internal->node_ptrs[idx-1].addr;
- middle_addr = internal->node_ptrs[idx].addr;
- right_addr = internal->node_ptrs[idx+1].addr;
-
- /* Lock B-tree child nodes */
- if (NULL == (left_internal = H5AC_protect(f, dxpl_id, child_class, left_addr, &(internal->node_ptrs[idx-1].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
- if (NULL == (middle_internal = H5AC_protect(f, dxpl_id, child_class, middle_addr, &(internal->node_ptrs[idx].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
- if (NULL == (right_internal = H5AC_protect(f, dxpl_id, child_class, right_addr, &(internal->node_ptrs[idx+1].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
-
- /* More setup for accessing child node information */
- left_child = left_internal;
- middle_child = middle_internal;
- right_child = right_internal;
- left_nrec = &(left_internal->nrec);
- middle_nrec = &(middle_internal->nrec);
- right_nrec = &(right_internal->nrec);
- left_native = left_internal->int_native;
- middle_native = middle_internal->int_native;
- right_native = right_internal->int_native;
- left_node_ptrs = left_internal->node_ptrs;
- middle_node_ptrs = middle_internal->node_ptrs;
- right_node_ptrs = right_internal->node_ptrs;
- } /* end if */
- else {
- H5B2_leaf_t *left_leaf; /* Pointer to left leaf node */
- H5B2_leaf_t *middle_leaf; /* Pointer to middle leaf node */
- H5B2_leaf_t *right_leaf; /* Pointer to right leaf node */
-
- /* Setup information for unlocking child nodes */
- child_class = H5AC_BT2_LEAF;
- left_addr = internal->node_ptrs[idx-1].addr;
- middle_addr = internal->node_ptrs[idx].addr;
- right_addr = internal->node_ptrs[idx+1].addr;
-
- /* Lock B-tree child nodes */
- if (NULL == (left_leaf = H5AC_protect(f, dxpl_id, child_class, left_addr, &(internal->node_ptrs[idx-1].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
- if (NULL == (middle_leaf = H5AC_protect(f, dxpl_id, child_class, middle_addr, &(internal->node_ptrs[idx].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
- if (NULL == (right_leaf = H5AC_protect(f, dxpl_id, child_class, right_addr, &(internal->node_ptrs[idx+1].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
-
- /* More setup for accessing child node information */
- left_child = left_leaf;
- middle_child = middle_leaf;
- right_child = right_leaf;
- left_nrec = &(left_leaf->nrec);
- middle_nrec = &(middle_leaf->nrec);
- right_nrec = &(right_leaf->nrec);
- left_native = left_leaf->leaf_native;
- middle_native = middle_leaf->leaf_native;
- right_native = right_leaf->leaf_native;
- } /* end else */
-
- /* Redistribute records into left node */
- {
- unsigned total_nrec = *left_nrec + *middle_nrec + *right_nrec + 2;
- unsigned middle_nrec_move = ((total_nrec - 1) / 2) - *left_nrec;
-
- /* Set the base number of records moved from middle node */
- middle_moved_nrec = middle_nrec_move;
-
- /* Copy record from parent node to proper location in left node */
- HDmemcpy(H5B2_NAT_NREC(left_native,shared,*left_nrec),H5B2_INT_NREC(internal,shared,idx-1),shared->type->nrec_size);
-
- /* Copy records from middle node to left node */
- HDmemcpy(H5B2_NAT_NREC(left_native,shared,*left_nrec+1),H5B2_NAT_NREC(middle_native,shared,0),shared->type->nrec_size*(middle_nrec_move-1));
-
- /* Copy record from middle node to proper location in parent node */
- HDmemcpy(H5B2_INT_NREC(internal,shared,idx-1),H5B2_NAT_NREC(middle_native,shared,(middle_nrec_move-1)),shared->type->nrec_size);
-
- /* Slide records in middle node down */
- HDmemmove(H5B2_NAT_NREC(middle_native,shared,0),H5B2_NAT_NREC(middle_native,shared,middle_nrec_move),shared->type->nrec_size*(*middle_nrec-middle_nrec_move));
-
- /* Move node pointers also if this is an internal node */
- if(depth>1) {
- unsigned u; /* Local index variable */
-
- /* Copy node pointers from middle node into left node */
- HDmemcpy(&(left_node_ptrs[*left_nrec+1]),&(middle_node_ptrs[0]),sizeof(H5B2_node_ptr_t)*middle_nrec_move);
-
- /* Count the number of records being moved into the left node */
- for(u=0; u<middle_nrec_move; u++)
- middle_moved_nrec += middle_node_ptrs[u].all_nrec;
-
- /* Slide the node pointers in right node down */
- HDmemmove(&(middle_node_ptrs[0]),&(middle_node_ptrs[middle_nrec_move]),sizeof(H5B2_node_ptr_t)*((*middle_nrec+1)-middle_nrec_move));
- } /* end if */
-
- /* Update # of records in left & middle nodes */
- *left_nrec += middle_nrec_move;
- *middle_nrec -= middle_nrec_move;
- } /* end block */
-
- /* Redistribute records into middle node */
- {
- /* Copy record from parent node to proper location in middle node */
- HDmemcpy(H5B2_NAT_NREC(middle_native,shared,*middle_nrec),H5B2_INT_NREC(internal,shared,idx),shared->type->nrec_size);
-
- /* Copy records from right node to middle node */
- HDmemcpy(H5B2_NAT_NREC(middle_native,shared,*middle_nrec+1),H5B2_NAT_NREC(right_native,shared,0),shared->type->nrec_size*(*right_nrec));
-
- /* Move node pointers also if this is an internal node */
- if(depth>1)
- /* Copy node pointers from middle node into left node */
- HDmemcpy(&(middle_node_ptrs[*middle_nrec+1]),&(right_node_ptrs[0]),sizeof(H5B2_node_ptr_t)*(*right_nrec+1));
-
- /* Update # of records in middle node */
- *middle_nrec += *right_nrec + 1;
- } /* end block */
-
- /* Update # of records in child nodes */
- internal->node_ptrs[idx-1].node_nrec = *left_nrec;
- internal->node_ptrs[idx].node_nrec = *middle_nrec;
-
- /* Update total # of records in child B-trees */
- internal->node_ptrs[idx-1].all_nrec += middle_moved_nrec;
- internal->node_ptrs[idx].all_nrec += (internal->node_ptrs[idx+1].all_nrec + 1) - middle_moved_nrec;
-
- /* Slide records in parent node down, to eliminate demoted record */
- if((idx+1) < internal->nrec) {
- HDmemmove(H5B2_INT_NREC(internal,shared,idx),H5B2_INT_NREC(internal,shared,idx+1),shared->type->nrec_size*(internal->nrec-(idx+1)));
- HDmemmove(&(internal->node_ptrs[idx+1]),&(internal->node_ptrs[idx+2]),sizeof(H5B2_node_ptr_t)*(internal->nrec-(idx+1)));
- } /* end if */
-
- /* Update # of records in parent node */
- internal->nrec--;
-
- /* Mark parent as dirty */
- *internal_flags_ptr |= H5AC__DIRTIED_FLAG;
-
- /* Update grandparent info */
- curr_node_ptr->node_nrec--;
-
- /* Mark grandparent as dirty */
- *parent_cache_info_flags_ptr |= H5AC__DIRTIED_FLAG;
-
-#ifdef H5B2_DEBUG
- H5B2_assert_internal((hsize_t)0,shared,internal);
- if(depth>1) {
- H5B2_assert_internal2(internal->node_ptrs[idx-1].all_nrec,shared,left_child,middle_child);
- H5B2_assert_internal(internal->node_ptrs[idx].all_nrec,shared,middle_child);
- } /* end if */
- else {
- H5B2_assert_leaf2(shared,left_child,middle_child);
- H5B2_assert_leaf(shared,middle_child);
- } /* end else */
-#endif /* H5B2_DEBUG */
-
- /* Unlock left & middle nodes (marked as dirty) */
- if (H5AC_unprotect(f, dxpl_id, child_class, left_addr, left_child, H5AC__DIRTIED_FLAG) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree child node")
- if (H5AC_unprotect(f, dxpl_id, child_class, middle_addr, middle_child, H5AC__DIRTIED_FLAG) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree child node")
-
- /* Delete right node & remove from cache (marked as dirty) */
- if (H5MF_xfree(f, H5FD_MEM_BTREE, dxpl_id, right_addr, (hsize_t)shared->node_size)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTFREE, FAIL, "unable to free B-tree leaf node")
- if (H5AC_unprotect(f, dxpl_id, child_class, right_addr, right_child, H5AC__DIRTIED_FLAG|H5AC__DELETED_FLAG) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree child node")
-
-done:
- FUNC_LEAVE_NOAPI(ret_value);
-} /* end H5B2_merge3 */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5B2_swap_leaf
- *
- * Purpose: Swap a record in a node with a record in a leaf node
- *
- * Return: Success: Non-negative
- *
- * Failure: Negative
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Mar 4 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_swap_leaf(H5F_t *f, hid_t dxpl_id, unsigned depth,
- H5B2_internal_t *internal, unsigned *internal_flags_ptr,
- unsigned idx, void *swap_loc)
-{
- const H5AC_class_t *child_class; /* Pointer to child node's class info */
- haddr_t child_addr; /* Address of child node */
- void *child; /* Pointer to child node */
- uint8_t *child_native; /* Pointer to child's native records */
- H5B2_shared_t *shared; /* B-tree's shared info */
- herr_t ret_value=SUCCEED; /* Return value */
-
- FUNC_ENTER_NOAPI_NOINIT(H5B2_swap_leaf)
-
- HDassert(f);
- HDassert(internal);
- HDassert(internal_flags_ptr);
- HDassert(idx <= internal->nrec);
-
- /* Get the pointer to the shared B-tree info */
- shared=H5RC_GET_OBJ(internal->shared);
- HDassert(shared);
-
- /* Check for the kind of B-tree node to swap */
- if(depth>1) {
- H5B2_internal_t *child_internal; /* Pointer to internal node */
-
- /* Setup information for unlocking child node */
- child_class = H5AC_BT2_INT;
- child_addr = internal->node_ptrs[idx].addr;
-
- /* Lock B-tree child nodes */
- if (NULL == (child_internal = H5AC_protect(f, dxpl_id, child_class, child_addr, &(internal->node_ptrs[idx].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
-
- /* More setup for accessing child node information */
- child = child_internal;
- child_native = child_internal->int_native;
- } /* end if */
- else {
- H5B2_leaf_t *child_leaf; /* Pointer to leaf node */
-
- /* Setup information for unlocking child nodes */
- child_class = H5AC_BT2_LEAF;
- child_addr = internal->node_ptrs[idx].addr;
-
- /* Lock B-tree child node */
- if (NULL == (child_leaf = H5AC_protect(f, dxpl_id, child_class, child_addr, &(internal->node_ptrs[idx].node_nrec), internal->shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
-
- /* More setup for accessing child node information */
- child = child_leaf;
- child_native = child_leaf->leaf_native;
- } /* end else */
-
- /* Swap records (use disk page as temporary buffer) */
- HDmemcpy(shared->page, H5B2_NAT_NREC(child_native,shared,0), shared->type->nrec_size);
- HDmemcpy(H5B2_NAT_NREC(child_native,shared,0), swap_loc, shared->type->nrec_size);
- HDmemcpy(swap_loc, shared->page, shared->type->nrec_size);
-
- /* Mark parent as dirty */
- *internal_flags_ptr |= H5AC__DIRTIED_FLAG;
-
-#ifdef H5B2_DEBUG
- H5B2_assert_internal((hsize_t)0,shared,internal);
- if(depth>1)
- H5B2_assert_internal(internal->node_ptrs[idx].all_nrec,shared,child);
- else
- H5B2_assert_leaf(shared,child);
-#endif /* H5B2_DEBUG */
-
- /* Unlock child node */
- if (H5AC_unprotect(f, dxpl_id, child_class, child_addr, child, H5AC__DIRTIED_FLAG) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree child node")
-
-done:
- FUNC_LEAVE_NOAPI(ret_value);
-} /* end H5B2_swap_leaf */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5B2_insert_leaf
- *
- * Purpose: Adds a new record to a B-tree leaf node.
- *
- * Return: Non-negative on success/Negative on failure
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Mar 3 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_insert_leaf(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
- H5B2_node_ptr_t *curr_node_ptr, void *udata)
-{
- H5B2_leaf_t *leaf; /* Pointer to leaf node */
- H5B2_shared_t *shared; /* Pointer to B-tree's shared information */
- int cmp; /* Comparison value of records */
- unsigned idx; /* Location of record which matches key */
- herr_t ret_value = SUCCEED;
-
- FUNC_ENTER_NOAPI_NOINIT(H5B2_insert_leaf)
-
- /* Check arguments. */
- HDassert(f);
- HDassert(bt2_shared);
- HDassert(curr_node_ptr);
- HDassert(H5F_addr_defined(curr_node_ptr->addr));
-
- /* Lock current B-tree node */
- if (NULL == (leaf = H5AC_protect(f, dxpl_id, H5AC_BT2_LEAF, curr_node_ptr->addr, &(curr_node_ptr->node_nrec), bt2_shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
-
- /* Get the pointer to the shared B-tree info */
- shared=H5RC_GET_OBJ(bt2_shared);
- HDassert(shared);
-
- /* Must have a leaf node with enough space to insert a record now */
- HDassert(curr_node_ptr->node_nrec < shared->split_leaf_nrec);
-
- /* Sanity check number of records */
- HDassert(curr_node_ptr->all_nrec == curr_node_ptr->node_nrec);
- HDassert(leaf->nrec == curr_node_ptr->node_nrec);
-
- /* Check for inserting into empty leaf */
- if(leaf->nrec==0)
- idx=0;
- else {
- /* Find correct location to insert this record */
- if((cmp = H5B2_locate_record(shared->type,leaf->nrec,shared->nat_off,leaf->leaf_native,udata,&idx)) == 0)
- HGOTO_ERROR(H5E_BTREE, H5E_EXISTS, FAIL, "record is already in B-tree")
- if(cmp > 0)
- idx++;
-
- /* Make room for new record */
- if(idx<leaf->nrec)
- HDmemmove(H5B2_LEAF_NREC(leaf,shared,idx+1),H5B2_LEAF_NREC(leaf,shared,idx),shared->type->nrec_size*(leaf->nrec-idx));
- } /* end else */
-
- /* Make callback to store record in native form */
- if((shared->type->store)(H5B2_LEAF_NREC(leaf,shared,idx),udata)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTINSERT, FAIL, "unable to insert record into leaf node")
-
- /* Update record count for node pointer to current node */
- curr_node_ptr->all_nrec++;
- curr_node_ptr->node_nrec++;
-
- /* Update record count for current node */
- leaf->nrec++;
-
-done:
- /* Release the B-tree leaf node (marked as dirty) */
- if (leaf && H5AC_unprotect(f, dxpl_id, H5AC_BT2_LEAF, curr_node_ptr->addr, leaf, H5AC__DIRTIED_FLAG) < 0)
- HDONE_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release leaf B-tree node")
-
- FUNC_LEAVE_NOAPI(ret_value)
-} /* H5B2_insert_leaf() */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5B2_insert_internal
- *
- * Purpose: Adds a new record to a B-tree node.
- *
- * Return: Non-negative on success/Negative on failure
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Mar 2 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_insert_internal(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
- unsigned depth, unsigned *parent_cache_info_flags_ptr,
- H5B2_node_ptr_t *curr_node_ptr, void *udata)
-{
- H5B2_internal_t *internal; /* Pointer to internal node */
- unsigned internal_flags = H5AC__NO_FLAGS_SET;
- H5B2_shared_t *shared; /* Pointer to B-tree's shared information */
- unsigned idx; /* Location of record which matches key */
- herr_t ret_value = SUCCEED;
-
- FUNC_ENTER_NOAPI_NOINIT(H5B2_insert_internal)
-
- /* Check arguments. */
- HDassert(f);
- HDassert(bt2_shared);
- HDassert(depth>0);
- HDassert(parent_cache_info_flags_ptr);
- HDassert(curr_node_ptr);
- HDassert(H5F_addr_defined(curr_node_ptr->addr));
-
- /* Lock current B-tree node */
- if (NULL == (internal = H5AC_protect(f, dxpl_id, H5AC_BT2_INT, curr_node_ptr->addr, &(curr_node_ptr->node_nrec), bt2_shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
-
- /* Get the pointer to the shared B-tree info */
- shared=H5RC_GET_OBJ(bt2_shared);
- HDassert(shared);
-
-/* Split or redistribute child node pointers, if necessary */
- {
- int cmp; /* Comparison value of records */
- unsigned retries; /* Number of times to attempt redistribution */
- size_t split_nrec; /* Number of records to split node at */
-
- /* Locate node pointer for child */
- if((cmp=H5B2_locate_record(shared->type,internal->nrec,shared->nat_off,internal->int_native,udata,&idx)) == 0)
- HGOTO_ERROR(H5E_BTREE, H5E_EXISTS, FAIL, "record is already in B-tree")
- if(cmp>0)
- idx++;
-
- /* Set the number of redistribution retries */
- /* This takes care of the case where a B-tree node needs to be
- * redistributed, but redistributing the node causes the index
- * for insertion to move to another node, which also needs to be
- * redistributed. Now, we loop trying to redistribute and then
- * eventually force a split */
- retries = 2;
-
- /* Determine the correct number of records to split at */
- if(depth==1)
- split_nrec = shared->split_leaf_nrec;
- else
- split_nrec = shared->split_int_nrec;
-
- /* Preemptively split/redistribute a node we will enter */
- while(internal->node_ptrs[idx].node_nrec == split_nrec) {
- /* Attempt to redistribute records among children */
- if(idx==0) { /* Left-most child */
- if(retries>0 && (internal->node_ptrs[idx+1].node_nrec < split_nrec)) {
- if(H5B2_redistribute2(f,dxpl_id,depth,internal,idx)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTREDISTRIBUTE, FAIL, "unable to redistribute child node records")
- } /* end if */
- else {
- if(H5B2_split2(f,dxpl_id,depth,curr_node_ptr,
- parent_cache_info_flags_ptr, internal,&internal_flags,idx)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTSPLIT, FAIL, "unable to split child node")
- } /* end else */
- } /* end if */
- else if(idx==internal->nrec) { /* Right-most child */
- if(retries>0 && (internal->node_ptrs[idx-1].node_nrec < split_nrec)) {
- if(H5B2_redistribute2(f,dxpl_id,depth,internal,(idx-1))<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTREDISTRIBUTE, FAIL, "unable to redistribute child node records")
- } /* end if */
- else {
- if(H5B2_split2(f,dxpl_id,depth,curr_node_ptr,
- parent_cache_info_flags_ptr, internal,&internal_flags,(idx-1))<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTSPLIT, FAIL, "unable to split child node")
- } /* end else */
- } /* end if */
- else { /* Middle child */
- if(retries>0 && ((internal->node_ptrs[idx+1].node_nrec < split_nrec) ||
- (internal->node_ptrs[idx-1].node_nrec < split_nrec))) {
- if(H5B2_redistribute3(f,dxpl_id,depth,internal,&internal_flags,idx)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTREDISTRIBUTE, FAIL, "unable to redistribute child node records")
- } /* end if */
- else {
- if(H5B2_split3(f,dxpl_id,depth,curr_node_ptr,
- parent_cache_info_flags_ptr, internal,&internal_flags,idx)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTSPLIT, FAIL, "unable to split child node")
- } /* end else */
- } /* end else */
-
- /* Locate node pointer for child (after split/redistribute) */
-/* Actually, this can be easily updated (for 2-node redistrib.) and shouldn't require re-searching */
- if((cmp=H5B2_locate_record(shared->type,internal->nrec,shared->nat_off,internal->int_native,udata,&idx)) == 0)
- HGOTO_ERROR(H5E_BTREE, H5E_EXISTS, FAIL, "record is already in B-tree")
- if(cmp > 0)
- idx++;
-
- /* Decrement the number of redistribution retries left */
- retries--;
- } /* end while */
- } /* end block */
-
- /* Attempt to insert node */
- if(depth>1) {
- if(H5B2_insert_internal(f, dxpl_id, bt2_shared, depth-1, &internal_flags, &internal->node_ptrs[idx], udata) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTINSERT, FAIL, "unable to insert record into B-tree internal node")
- } /* end if */
- else {
- if(H5B2_insert_leaf(f,dxpl_id,bt2_shared,&internal->node_ptrs[idx],udata)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTINSERT, FAIL, "unable to insert record into B-tree leaf node")
- } /* end else */
-
- /* Update record count for node pointer to current node */
- curr_node_ptr->all_nrec++;
-
- /* Mark node as dirty */
- internal_flags |= H5AC__DIRTIED_FLAG;
-
-done:
- /* Release the B-tree internal node */
- if (internal && H5AC_unprotect(f, dxpl_id, H5AC_BT2_INT, curr_node_ptr->addr, internal, internal_flags) < 0)
- HDONE_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release internal B-tree node")
-
- FUNC_LEAVE_NOAPI(ret_value)
-} /* H5B2_insert_internal() */
-
-
-/*-------------------------------------------------------------------------
* Function: H5B2_insert
*
* Purpose: Adds a new record to the B-tree.
@@ -2578,251 +222,6 @@ done:
/*-------------------------------------------------------------------------
- * Function: H5B2_create_leaf
- *
- * Purpose: Creates empty leaf node of a B-tree and update node pointer
- * to point to it.
- *
- * Return: Non-negative on success/Negative on failure
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Feb 2 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_create_leaf(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared, H5B2_node_ptr_t *node_ptr)
-{
- H5B2_leaf_t *leaf=NULL; /* Pointer to new leaf node created */
- H5B2_shared_t *shared; /* Shared B-tree information */
- herr_t ret_value = SUCCEED;
-
- FUNC_ENTER_NOAPI(H5B2_create_leaf, FAIL)
-
- /* Check arguments. */
- HDassert(f);
- HDassert(bt2_shared);
- HDassert(node_ptr);
-
- /* Allocate memory for leaf information */
- if (NULL==(leaf = H5FL_MALLOC(H5B2_leaf_t)))
- HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for B-tree leaf info")
-
- /* Set metadata cache info */
- HDmemset(&leaf->cache_info,0,sizeof(H5AC_info_t));
-
- /* Share common B-tree information */
- leaf->shared = bt2_shared;
- H5RC_INC(leaf->shared);
-
- /* Get the pointer to the shared B-tree info */
- shared=H5RC_GET_OBJ(leaf->shared);
- HDassert(shared);
-
- /* Allocate space for the native keys in memory */
- if((leaf->leaf_native=H5FL_FAC_MALLOC(shared->leaf_fac))==NULL)
- HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for B-tree leaf native keys")
-#ifdef H5_USING_PURIFY
-HDmemset(leaf->leaf_native,0,shared->type->nrec_size*shared->leaf_nrec);
-#endif /* H5_USING_PURIFY */
-
- /* Set number of records */
- leaf->nrec=0;
-
- /* Allocate space on disk for the leaf */
- if (HADDR_UNDEF==(node_ptr->addr=H5MF_alloc(f, H5FD_MEM_BTREE, dxpl_id, (hsize_t)shared->node_size)))
- HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "file allocation failed for B-tree leaf node")
-
- /* Cache the new B-tree node */
- if (H5AC_set(f, dxpl_id, H5AC_BT2_LEAF, node_ptr->addr, leaf, H5AC__NO_FLAGS_SET) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTINIT, FAIL, "can't add B-tree leaf to cache")
-
-done:
- if (ret_value<0) {
- if (leaf)
- (void)H5B2_cache_leaf_dest(f,leaf);
- } /* end if */
-
- FUNC_LEAVE_NOAPI(ret_value)
-} /* H5B2_create_leaf() */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5B2_create_internal
- *
- * Purpose: Creates empty internal node of a B-tree and update node pointer
- * to point to it.
- *
- * Return: Non-negative on success/Negative on failure
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Feb 3 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_create_internal(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared, H5B2_node_ptr_t *node_ptr)
-{
- H5B2_internal_t *internal=NULL; /* Pointer to new internal node created */
- H5B2_shared_t *shared; /* Shared B-tree information */
- herr_t ret_value = SUCCEED;
-
- FUNC_ENTER_NOAPI(H5B2_create_internal, FAIL)
-
- /* Check arguments. */
- HDassert(f);
- HDassert(bt2_shared);
- HDassert(node_ptr);
-
- /* Allocate memory for internal node information */
- if (NULL==(internal = H5FL_MALLOC(H5B2_internal_t)))
- HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for B-tree internal info")
-
- /* Set metadata cache info */
- HDmemset(&internal->cache_info,0,sizeof(H5AC_info_t));
-
- /* Share common B-tree information */
- internal->shared = bt2_shared;
- H5RC_INC(internal->shared);
-
- /* Get the pointer to the shared B-tree info */
- shared=H5RC_GET_OBJ(internal->shared);
- HDassert(shared);
-
- /* Allocate space for the native keys in memory */
- if((internal->int_native=H5FL_FAC_MALLOC(shared->int_fac))==NULL)
- HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for B-tree internal native keys")
-#ifdef H5_USING_PURIFY
-HDmemset(internal->int_native,0,shared->type->nrec_size*shared->internal_nrec);
-#endif /* H5_USING_PURIFY */
-
- /* Allocate space for the node pointers in memory */
- if((internal->node_ptrs=H5FL_FAC_MALLOC(shared->node_ptr_fac))==NULL)
- HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for B-tree internal node pointers")
-#ifdef H5_USING_PURIFY
-HDmemset(internal->node_ptrs,0,sizeof(H5B2_node_ptr_t)*(shared->internal_nrec+1));
-#endif /* H5_USING_PURIFY */
-
- /* Set number of records */
- internal->nrec=0;
-
- /* Allocate space on disk for the internal node */
- if (HADDR_UNDEF==(node_ptr->addr=H5MF_alloc(f, H5FD_MEM_BTREE, dxpl_id, (hsize_t)shared->node_size)))
- HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "file allocation failed for B-tree internal node")
-
- /* Cache the new B-tree node */
- if (H5AC_set(f, dxpl_id, H5AC_BT2_INT, node_ptr->addr, internal, H5AC__NO_FLAGS_SET) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTINIT, FAIL, "can't add B-tree internal node to cache")
-
-done:
- if (ret_value<0) {
- if (internal)
- (void)H5B2_cache_internal_dest(f,internal);
- } /* end if */
-
- FUNC_LEAVE_NOAPI(ret_value)
-} /* H5B2_create_internal() */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5B2_iterate_node
- *
- * Purpose: Iterate over all the records from a B-tree node, in "in-order"
- * order, making a callback for each record.
- *
- * If the callback returns non-zero, the iteration breaks out
- * without finishing all the records.
- *
- * Return: Value from callback, non-negative on success, negative on error
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Feb 11 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_iterate_node(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared, unsigned depth,
- const H5B2_node_ptr_t *curr_node, H5B2_operator_t op, void *op_data)
-{
- H5B2_shared_t *shared; /* Pointer to B-tree's shared information */
- const H5AC_class_t *curr_node_class=NULL; /* Pointer to current node's class info */
- void *node=NULL; /* Pointers to current node */
- uint8_t *native; /* Pointers to node's native records */
- H5B2_node_ptr_t *node_ptrs=NULL; /* Pointers to node's node pointers */
- unsigned u; /* Local index */
- herr_t ret_value = H5B2_ITER_CONT;
-
- FUNC_ENTER_NOAPI(H5B2_iterate_node, FAIL)
-
- /* Check arguments. */
- HDassert(f);
- HDassert(bt2_shared);
- HDassert(curr_node);
- HDassert(op);
-
- /* Get the pointer to the shared B-tree info */
- shared=H5RC_GET_OBJ(bt2_shared);
- HDassert(shared);
-
- if(depth>0) {
- H5B2_internal_t *internal; /* Pointer to internal node */
-
- /* Lock the current B-tree node */
- if (NULL == (internal = H5AC_protect(f, dxpl_id, H5AC_BT2_INT, curr_node->addr, &(curr_node->node_nrec), bt2_shared, H5AC_READ)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
-
- /* Set up information about current node */
- curr_node_class = H5AC_BT2_INT;
- node = internal;
- native = internal->int_native;
- node_ptrs = internal->node_ptrs;
- } /* end if */
- else {
- H5B2_leaf_t *leaf; /* Pointer to leaf node */
-
- /* Lock the current B-tree node */
- if (NULL == (leaf = H5AC_protect(f, dxpl_id, H5AC_BT2_LEAF, curr_node->addr, &(curr_node->node_nrec), bt2_shared, H5AC_READ)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
-
- /* Set up information about current node */
- curr_node_class = H5AC_BT2_LEAF;
- node = leaf;
- native = leaf->leaf_native;
- } /* end else */
-
- /* Iterate through records */
- for(u=0; u<curr_node->node_nrec && !ret_value; u++) {
- /* Descend into child node, if current node is an internal node */
- if(depth>0) {
- if((ret_value = H5B2_iterate_node(f,dxpl_id,bt2_shared,depth-1,&(node_ptrs[u]),op,op_data))<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTLIST, FAIL, "node iteration failed")
- } /* end if */
-
- /* Make callback for current record */
- if ((ret_value = (op)(H5B2_NAT_NREC(native,shared,u), op_data)) <0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTLIST, FAIL, "iterator function failed")
- } /* end for */
-
- /* Descend into last child node, if current node is an internal node */
- if(!ret_value && depth>0) {
- if((ret_value = H5B2_iterate_node(f,dxpl_id,bt2_shared,depth-1,&(node_ptrs[u]),op,op_data))<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTLIST, FAIL, "node iteration failed")
- } /* end if */
-
-done:
- /* Unlock current node */
- if(node)
- if (H5AC_unprotect(f, dxpl_id, curr_node_class, curr_node->addr, node, H5AC__NO_FLAGS_SET) < 0)
- HDONE_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree node")
-
- FUNC_LEAVE_NOAPI(ret_value)
-} /* H5B2_iterate_node() */
-
-
-/*-------------------------------------------------------------------------
* Function: H5B2_iterate
*
* Purpose: Iterate over all the records in the B-tree, in "in-order"
@@ -3242,303 +641,6 @@ done:
/*-------------------------------------------------------------------------
- * Function: H5B2_remove_leaf
- *
- * Purpose: Removes a record from a B-tree leaf node.
- *
- * Return: Non-negative on success/Negative on failure
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Mar 3 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_remove_leaf(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
- H5B2_node_ptr_t *curr_node_ptr, void *udata)
-{
- H5B2_leaf_t *leaf; /* Pointer to leaf node */
- haddr_t leaf_addr=HADDR_UNDEF; /* Leaf address on disk */
- unsigned leaf_flags=H5AC__NO_FLAGS_SET; /* Flags for unprotecting leaf node */
- H5B2_shared_t *shared; /* Pointer to B-tree's shared information */
- unsigned idx; /* Location of record which matches key */
- herr_t ret_value = SUCCEED;
-
- FUNC_ENTER_NOAPI_NOINIT(H5B2_remove_leaf)
-
- /* Check arguments. */
- HDassert(f);
- HDassert(bt2_shared);
- HDassert(curr_node_ptr);
- HDassert(H5F_addr_defined(curr_node_ptr->addr));
-
- /* Lock current B-tree node */
- leaf_addr = curr_node_ptr->addr;
- if (NULL == (leaf = H5AC_protect(f, dxpl_id, H5AC_BT2_LEAF, leaf_addr, &(curr_node_ptr->node_nrec), bt2_shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
-
- /* Get the pointer to the shared B-tree info */
- shared=H5RC_GET_OBJ(bt2_shared);
- HDassert(shared);
-
- /* Sanity check number of records */
- HDassert(curr_node_ptr->all_nrec == curr_node_ptr->node_nrec);
- HDassert(leaf->nrec == curr_node_ptr->node_nrec);
-
- /* Find correct location to remove this record */
- if(H5B2_locate_record(shared->type,leaf->nrec,shared->nat_off,leaf->leaf_native,udata,&idx) != 0)
- HGOTO_ERROR(H5E_BTREE, H5E_NOTFOUND, FAIL, "record is not in B-tree")
-
- /* Make callback to retrieve record in native form */
- if((shared->type->retrieve)(udata,H5B2_LEAF_NREC(leaf,shared,idx))<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTDELETE, FAIL, "unable to remove record into leaf node")
-
- /* Update number of records in node */
- leaf->nrec--;
-
- /* Mark leaf node as dirty also */
- leaf_flags |= H5AC__DIRTIED_FLAG;
-
- if(leaf->nrec > 0) {
- /* Pack record out of leaf */
- if(idx<leaf->nrec)
- HDmemmove(H5B2_LEAF_NREC(leaf,shared,idx),H5B2_LEAF_NREC(leaf,shared,idx+1),shared->type->nrec_size*(leaf->nrec-idx));
- } /* end if */
- else {
- /* Release space for B-tree node on disk */
- if (H5MF_xfree(f, H5FD_MEM_BTREE, dxpl_id, leaf_addr, (hsize_t)shared->node_size)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTFREE, FAIL, "unable to free B-tree leaf node")
-
- /* Let the cache know that the object is deleted */
- leaf_flags |= H5AC__DELETED_FLAG;
-
- /* Reset address of parent node pointer */
- curr_node_ptr->addr = HADDR_UNDEF;
- } /* end else */
-
- /* Update record count for parent of leaf node */
- curr_node_ptr->node_nrec--;
-
-done:
- /* Release the B-tree leaf node */
- if (leaf && H5AC_unprotect(f, dxpl_id, H5AC_BT2_LEAF, leaf_addr, leaf, leaf_flags) < 0)
- HDONE_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release leaf B-tree node")
-
- FUNC_LEAVE_NOAPI(ret_value)
-} /* H5B2_remove_leaf() */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5B2_remove_internal
- *
- * Purpose: Removes a record from a B-tree node.
- *
- * Return: Non-negative on success/Negative on failure
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Mar 3 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_remove_internal(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
- hbool_t *depth_decreased, void *swap_loc, unsigned depth,
- H5AC_info_t *parent_cache_info, unsigned *parent_cache_info_flags_ptr,
- H5B2_node_ptr_t *curr_node_ptr, void *udata)
-{
- H5AC_info_t *new_cache_info; /* Pointer to new cache info */
- unsigned *new_cache_info_flags_ptr = NULL;
- H5B2_node_ptr_t *new_node_ptr; /* Pointer to new node pointer */
- H5B2_internal_t *internal; /* Pointer to internal node */
- unsigned internal_flags = H5AC__NO_FLAGS_SET;
- haddr_t internal_addr; /* Address of internal node */
- H5B2_shared_t *shared; /* Pointer to B-tree's shared information */
- unsigned idx; /* Location of record which matches key */
- size_t merge_nrec; /* Number of records to merge node at */
- hbool_t collapsed_root = FALSE; /* Whether the root was collapsed */
- herr_t ret_value = SUCCEED;
-
- FUNC_ENTER_NOAPI_NOINIT(H5B2_remove_internal)
-
- /* Check arguments. */
- HDassert(f);
- HDassert(bt2_shared);
- HDassert(depth>0);
- HDassert(parent_cache_info);
- HDassert(parent_cache_info_flags_ptr);
- HDassert(curr_node_ptr);
- HDassert(H5F_addr_defined(curr_node_ptr->addr));
-
- /* Lock current B-tree node */
- internal_addr = curr_node_ptr->addr;
- if (NULL == (internal = H5AC_protect(f, dxpl_id, H5AC_BT2_INT, internal_addr, &(curr_node_ptr->node_nrec), bt2_shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
-
- /* Get the pointer to the shared B-tree info */
- shared=H5RC_GET_OBJ(bt2_shared);
- HDassert(shared);
-
- /* Determine the correct number of records to merge at */
- if(depth==1)
- merge_nrec = shared->merge_leaf_nrec;
- else
- merge_nrec = shared->merge_int_nrec;
-
- /* Check for needing to collapse the root node */
- /* (The root node is the only node allowed to have 1 record) */
- if(internal->nrec == 1 &&
- ((internal->node_ptrs[0].node_nrec + internal->node_ptrs[1].node_nrec) <= ((merge_nrec * 2) + 1))) {
-
- /* Merge children of root node */
- if(H5B2_merge2(f,dxpl_id,depth,curr_node_ptr,
- parent_cache_info_flags_ptr, internal,&internal_flags,0)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTSPLIT, FAIL, "unable to merge child node")
-
- /* Release space for root B-tree node on disk */
- if (H5MF_xfree(f, H5FD_MEM_BTREE, dxpl_id, internal_addr, (hsize_t)shared->node_size)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTFREE, FAIL, "unable to free B-tree leaf node")
-
- /* Let the cache know that the object is deleted */
- internal_flags |= H5AC__DELETED_FLAG;
-
- /* Reset information in parent node pointer */
- curr_node_ptr->addr = internal->node_ptrs[0].addr;
- curr_node_ptr->node_nrec = internal->node_ptrs[0].node_nrec;
-
- /* Indicate that the level of the B-tree decreased */
- *depth_decreased = TRUE;
-
- /* Set pointers for advancing to child node */
- new_cache_info = parent_cache_info;
- new_cache_info_flags_ptr = parent_cache_info_flags_ptr;
- new_node_ptr = curr_node_ptr;
-
- /* Set flag to indicate root was collapsed */
- collapsed_root = TRUE;
- } /* end if */
- /* Merge or redistribute child node pointers, if necessary */
- else {
- int cmp=0; /* Comparison value of records */
- unsigned retries; /* Number of times to attempt redistribution */
-
- /* Locate node pointer for child */
- if(swap_loc)
- idx = 0;
- else {
- cmp=H5B2_locate_record(shared->type,internal->nrec,shared->nat_off,internal->int_native,udata,&idx);
- if(cmp >= 0)
- idx++;
- } /* end else */
-
- /* Set the number of redistribution retries */
- /* This takes care of the case where a B-tree node needs to be
- * redistributed, but redistributing the node causes the index
- * for removal to move to another node, which also needs to be
- * redistributed. Now, we loop trying to redistribute and then
- * eventually force a merge */
- retries = 2;
-
- /* Preemptively merge/redistribute a node we will enter */
- while(internal->node_ptrs[idx].node_nrec==merge_nrec) {
- /* Attempt to redistribute records among children */
- if(idx==0) { /* Left-most child */
- if(retries>0 && (internal->node_ptrs[idx+1].node_nrec > merge_nrec)) {
- if(H5B2_redistribute2(f,dxpl_id,depth,internal,idx)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTREDISTRIBUTE, FAIL, "unable to redistribute child node records")
- } /* end if */
- else {
- if(H5B2_merge2(f,dxpl_id,depth,curr_node_ptr,
- parent_cache_info_flags_ptr, internal,&internal_flags,idx)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTSPLIT, FAIL, "unable to merge child node")
- } /* end else */
- } /* end if */
- else if(idx==internal->nrec) { /* Right-most child */
- if(retries>0 && (internal->node_ptrs[idx-1].node_nrec > merge_nrec)) {
- if(H5B2_redistribute2(f,dxpl_id,depth,internal,(idx-1))<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTREDISTRIBUTE, FAIL, "unable to redistribute child node records")
- } /* end if */
- else {
- if(H5B2_merge2(f,dxpl_id,depth,curr_node_ptr,
- parent_cache_info_flags_ptr, internal,&internal_flags,(idx-1))<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTSPLIT, FAIL, "unable to merge child node")
- } /* end else */
- } /* end if */
- else { /* Middle child */
- if(retries>0 && ((internal->node_ptrs[idx+1].node_nrec > merge_nrec) ||
- (internal->node_ptrs[idx-1].node_nrec > merge_nrec))) {
- if(H5B2_redistribute3(f,dxpl_id,depth,internal,&internal_flags,idx)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTREDISTRIBUTE, FAIL, "unable to redistribute child node records")
- } /* end if */
- else {
- if(H5B2_merge3(f,dxpl_id,depth,curr_node_ptr,
- parent_cache_info_flags_ptr,internal, &internal_flags,idx)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTSPLIT, FAIL, "unable to merge child node")
- } /* end else */
- } /* end else */
-
- /* Locate node pointer for child (after merge/redistribute) */
- if(swap_loc)
- idx = 0;
- else {
-/* Actually, this can be easily updated (for 2-node redistrib.) and shouldn't require re-searching */
- cmp=H5B2_locate_record(shared->type,internal->nrec,shared->nat_off,internal->int_native,udata,&idx);
- if(cmp >= 0)
- idx++;
- } /* end else */
-
- /* Decrement the number of redistribution retries left */
- retries--;
- } /* end while */
-
- /* Handle deleting a record from an internal node */
- if(!swap_loc && cmp==0)
- swap_loc = H5B2_INT_NREC(internal,shared,idx-1);
-
- /* Swap record to delete with record from leaf, if we are the last internal node */
- if(swap_loc && depth==1)
- if(H5B2_swap_leaf(f,dxpl_id,depth,internal,&internal_flags,idx,swap_loc) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTSWAP, FAIL, "Can't swap records in B-tree")
-
- /* Set pointers for advancing to child node */
- new_cache_info_flags_ptr = &internal_flags;
- new_cache_info = &internal->cache_info;
- new_node_ptr = &internal->node_ptrs[idx];
- } /* end else */
-
- /* Attempt to remove node */
- if(depth>1) {
- if(H5B2_remove_internal(f,dxpl_id,bt2_shared,depth_decreased, swap_loc, depth-1,
- new_cache_info,new_cache_info_flags_ptr,new_node_ptr,udata)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTDELETE, FAIL, "unable to remove record from B-tree internal node")
- } /* end if */
- else {
- if(H5B2_remove_leaf(f,dxpl_id,bt2_shared,new_node_ptr,udata)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTDELETE, FAIL, "unable to remove record from B-tree leaf node")
- } /* end else */
-
- /* Update record count for node pointer to current node */
- if(!collapsed_root)
- new_node_ptr->all_nrec--;
-
- /* Mark node as dirty */
- internal_flags |= H5AC__DIRTIED_FLAG;
-
-#ifdef H5B2_DEBUG
- H5B2_assert_internal((!collapsed_root ? (curr_node_ptr->all_nrec-1) : new_node_ptr->all_nrec),shared,internal);
-#endif /* H5B2_DEBUG */
-
-done:
- /* Release the B-tree internal node */
- if (internal && H5AC_unprotect(f, dxpl_id, H5AC_BT2_INT, internal_addr, internal, internal_flags) < 0)
- HDONE_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release internal B-tree node")
-
- FUNC_LEAVE_NOAPI(ret_value)
-} /* H5B2_remove_internal() */
-
-
-/*-------------------------------------------------------------------------
* Function: H5B2_remove
*
* Purpose: Removes a record from a B-tree.
@@ -3654,190 +756,6 @@ done:
/*-------------------------------------------------------------------------
- * Function: H5B2_neighbor_leaf
- *
- * Purpose: Locate a record relative to the specified information in a
- * B-tree leaf node and return that information by filling in
- * fields of the
- * caller-supplied UDATA pointer depending on the type of leaf node
- * requested. The UDATA can point to additional data passed
- * to the key comparison function.
- *
- * The 'OP' routine is called with the record found and the
- * OP_DATA pointer, to allow caller to return information about
- * the record.
- *
- * The RANGE indicates whether to search for records less than or
- * equal to, or greater than or equal to the information passed
- * in with UDATA.
- *
- * Return: Non-negative on success, negative on failure.
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Mar 9 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_neighbor_leaf(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
- H5B2_node_ptr_t *curr_node_ptr, void *neighbor_loc,
- H5B2_compare_t comp, void *udata, H5B2_found_t op, void *op_data)
-{
- H5B2_leaf_t *leaf; /* Pointer to leaf node */
- H5B2_shared_t *shared; /* Pointer to B-tree's shared information */
- unsigned idx; /* Location of record which matches key */
- int cmp=0; /* Comparison value of records */
- herr_t ret_value = SUCCEED;
-
- FUNC_ENTER_NOAPI_NOINIT(H5B2_neighbor_leaf)
-
- /* Check arguments. */
- HDassert(f);
- HDassert(bt2_shared);
- HDassert(curr_node_ptr);
- HDassert(H5F_addr_defined(curr_node_ptr->addr));
- HDassert(op);
-
- /* Lock current B-tree node */
- if (NULL == (leaf = H5AC_protect(f, dxpl_id, H5AC_BT2_LEAF, curr_node_ptr->addr, &(curr_node_ptr->node_nrec), bt2_shared, H5AC_READ)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
-
- /* Get the pointer to the shared B-tree info */
- shared=H5RC_GET_OBJ(bt2_shared);
- HDassert(shared);
-
-
- /* Locate node pointer for child */
- cmp = H5B2_locate_record(shared->type, leaf->nrec, shared->nat_off, leaf->leaf_native, udata, &idx);
- if(cmp > 0)
- idx++;
- else
- if(cmp == 0 && comp == H5B2_COMPARE_GREATER)
- idx++;
-
- /* Set the neighbor location, if appropriate */
- if(comp == H5B2_COMPARE_LESS) {
- if(idx > 0)
- neighbor_loc = H5B2_LEAF_NREC(leaf,shared,idx-1);
- } /* end if */
- else {
- HDassert(comp == H5B2_COMPARE_GREATER);
-
- if(idx < leaf->nrec)
- neighbor_loc = H5B2_LEAF_NREC(leaf,shared,idx);
- } /* end else */
-
- /* Make callback if neighbor record has been found */
- if(neighbor_loc) {
- /* Make callback for current record */
- if ((op)(neighbor_loc, op_data) < 0)
- HGOTO_ERROR(H5E_BTREE, H5E_NOTFOUND, FAIL, "'found' callback failed for B-tree neighbor operation")
- } /* end if */
- else
- HGOTO_ERROR(H5E_BTREE, H5E_NOTFOUND, FAIL, "unable to find neighbor record in B-tree")
-
-done:
- /* Release the B-tree internal node */
- if (leaf && H5AC_unprotect(f, dxpl_id, H5AC_BT2_LEAF, curr_node_ptr->addr, leaf, H5AC__NO_FLAGS_SET) < 0)
- HDONE_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree leaf node")
-
- FUNC_LEAVE_NOAPI(ret_value)
-} /* H5B2_neighbor_leaf() */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5B2_neighbor_internal
- *
- * Purpose: Locate a record relative to the specified information in a
- * B-tree internal node and return that information by filling in
- * fields of the
- * caller-supplied UDATA pointer depending on the type of leaf node
- * requested. The UDATA can point to additional data passed
- * to the key comparison function.
- *
- * The 'OP' routine is called with the record found and the
- * OP_DATA pointer, to allow caller to return information about
- * the record.
- *
- * The RANGE indicates whether to search for records less than or
- * equal to, or greater than or equal to the information passed
- * in with UDATA.
- *
- * Return: Non-negative on success, negative on failure.
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Mar 9 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_neighbor_internal(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
- unsigned depth, H5B2_node_ptr_t *curr_node_ptr, void *neighbor_loc,
- H5B2_compare_t comp, void *udata, H5B2_found_t op, void *op_data)
-{
- H5B2_internal_t *internal; /* Pointer to internal node */
- H5B2_shared_t *shared; /* Pointer to B-tree's shared information */
- unsigned idx; /* Location of record which matches key */
- int cmp=0; /* Comparison value of records */
- herr_t ret_value = SUCCEED;
-
- FUNC_ENTER_NOAPI_NOINIT(H5B2_neighbor_internal)
-
- /* Check arguments. */
- HDassert(f);
- HDassert(bt2_shared);
- HDassert(depth>0);
- HDassert(curr_node_ptr);
- HDassert(H5F_addr_defined(curr_node_ptr->addr));
- HDassert(op);
-
- /* Lock current B-tree node */
- if (NULL == (internal = H5AC_protect(f, dxpl_id, H5AC_BT2_INT, curr_node_ptr->addr, &(curr_node_ptr->node_nrec), bt2_shared, H5AC_READ)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
-
- /* Get the pointer to the shared B-tree info */
- shared=H5RC_GET_OBJ(bt2_shared);
- HDassert(shared);
-
- /* Locate node pointer for child */
- cmp = H5B2_locate_record(shared->type,internal->nrec,shared->nat_off,internal->int_native,udata,&idx);
- if(cmp > 0)
- idx++;
-
- /* Set the neighbor location, if appropriate */
- if(comp == H5B2_COMPARE_LESS) {
- if(idx > 0)
- neighbor_loc = H5B2_INT_NREC(internal,shared,idx-1);
- } /* end if */
- else {
- HDassert(comp == H5B2_COMPARE_GREATER);
-
- if(idx < internal->nrec)
- neighbor_loc = H5B2_INT_NREC(internal,shared,idx);
- } /* end else */
-
- /* Attempt to find neighboring record */
- if(depth>1) {
- if(H5B2_neighbor_internal(f, dxpl_id, bt2_shared, depth-1, &internal->node_ptrs[idx], neighbor_loc, comp, udata, op, op_data)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_NOTFOUND, FAIL, "unable to find neighbor record in B-tree internal node")
- } /* end if */
- else {
- if(H5B2_neighbor_leaf(f, dxpl_id, bt2_shared, &internal->node_ptrs[idx], neighbor_loc, comp, udata, op, op_data)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_NOTFOUND, FAIL, "unable to find neighbor record in B-tree leaf node")
- } /* end else */
-
-done:
- /* Release the B-tree internal node */
- if (internal && H5AC_unprotect(f, dxpl_id, H5AC_BT2_INT, curr_node_ptr->addr, internal, H5AC__NO_FLAGS_SET) < 0)
- HDONE_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release internal B-tree node")
-
- FUNC_LEAVE_NOAPI(ret_value)
-} /* H5B2_neighbor_internal() */
-
-
-/*-------------------------------------------------------------------------
* Function: H5B2_neighbor
*
* Purpose: Locate a record relative to the specified information in a
@@ -3905,83 +823,6 @@ done:
/*-------------------------------------------------------------------------
- * Function: H5B2_delete_node
- *
- * Purpose: Iterate over all the nodes in a B-tree node deleting them
- * after they no longer have any children
- *
- * Return: Value from callback, non-negative on success, negative on error
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Mar 9 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_delete_node(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared, unsigned depth,
- const H5B2_node_ptr_t *curr_node)
-{
- H5B2_shared_t *shared; /* Pointer to B-tree's shared information */
- const H5AC_class_t *curr_node_class=NULL; /* Pointer to current node's class info */
- void *node=NULL; /* Pointers to current node */
- herr_t ret_value = SUCCEED;
-
- FUNC_ENTER_NOAPI(H5B2_delete_node, FAIL)
-
- /* Check arguments. */
- HDassert(f);
- HDassert(bt2_shared);
- HDassert(curr_node);
-
- /* Get the pointer to the shared B-tree info */
- shared=H5RC_GET_OBJ(bt2_shared);
- HDassert(shared);
-
- if(depth>0) {
- H5B2_internal_t *internal; /* Pointer to internal node */
- unsigned u; /* Local index */
-
- /* Lock the current B-tree node */
- if (NULL == (internal = H5AC_protect(f, dxpl_id, H5AC_BT2_INT, curr_node->addr, &(curr_node->node_nrec), bt2_shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node")
-
- /* Set up information about current node */
- curr_node_class = H5AC_BT2_INT;
- node = internal;
-
- /* Descend into children */
- for(u=0; u<internal->nrec+1; u++)
- if(H5B2_delete_node(f, dxpl_id, bt2_shared, depth-1, &(internal->node_ptrs[u]))<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTLIST, FAIL, "node descent failed")
- } /* end if */
- else {
- H5B2_leaf_t *leaf; /* Pointer to leaf node */
-
- /* Lock the current B-tree node */
- if (NULL == (leaf = H5AC_protect(f, dxpl_id, H5AC_BT2_LEAF, curr_node->addr, &(curr_node->node_nrec), bt2_shared, H5AC_WRITE)))
- HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node")
-
- /* Set up information about current node */
- curr_node_class = H5AC_BT2_LEAF;
- node = leaf;
- } /* end else */
-
- /* Release space for current B-tree node on disk */
- if (H5MF_xfree(f, H5FD_MEM_BTREE, dxpl_id, curr_node->addr, (hsize_t)shared->node_size)<0)
- HGOTO_ERROR(H5E_BTREE, H5E_CANTFREE, FAIL, "unable to free B-tree node")
-
-done:
- /* Unlock & delete current node */
- if(node)
- if (H5AC_unprotect(f, dxpl_id, curr_node_class, curr_node->addr, node, H5AC__DELETED_FLAG) < 0)
- HDONE_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree node")
-
- FUNC_LEAVE_NOAPI(ret_value)
-} /* H5B2_delete_node() */
-
-
-/*-------------------------------------------------------------------------
* Function: H5B2_delete
*
* Purpose: Delete an entire B-tree from a file.
@@ -4211,161 +1052,3 @@ done:
FUNC_LEAVE_NOAPI(ret_value)
} /* H5B2_modify() */
-#ifdef H5B2_DEBUG
-
-/*-------------------------------------------------------------------------
- * Function: H5B2_assert_leaf
- *
- * Purpose: Verify than a leaf node is mostly sane
- *
- * Return: Non-negative on success, negative on failure
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Feb 19 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_assert_leaf(H5B2_shared_t *shared, H5B2_leaf_t *leaf)
-{
- unsigned u,v; /* Local index variables */
-
- /* General sanity checking on node */
- HDassert(leaf->nrec<=shared->split_leaf_nrec);
-
- /* Sanity checking on records */
- for(u=0; u<leaf->nrec; u++)
- for(v=0; v<u; v++)
- HDassert((shared->type->compare)(H5B2_LEAF_NREC(leaf,shared,u), H5B2_LEAF_NREC(leaf,shared,v))>0);
-
- return(0);
-} /* end H5B2_assert_leaf() */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5B2_assert_leaf2
- *
- * Purpose: Verify than a leaf node is mostly sane
- *
- * Return: Non-negative on success, negative on failure
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Feb 19 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_assert_leaf2(H5B2_shared_t *shared, H5B2_leaf_t *leaf, H5B2_leaf_t *leaf2)
-{
- unsigned u,v; /* Local index variables */
-
- /* General sanity checking on node */
- HDassert(leaf->nrec<=shared->split_leaf_nrec);
-
- /* Sanity checking on records */
- for(u=0; u<leaf->nrec; u++) {
- HDassert((shared->type->compare)(H5B2_LEAF_NREC(leaf2,shared,0), H5B2_LEAF_NREC(leaf,shared,u))>0);
- for(v=0; v<u; v++)
- HDassert((shared->type->compare)(H5B2_LEAF_NREC(leaf,shared,u), H5B2_LEAF_NREC(leaf,shared,v))>0);
- } /* end for */
-
- return(0);
-} /* end H5B2_assert_leaf() */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5B2_assert_internal
- *
- * Purpose: Verify than an internal node is mostly sane
- *
- * Return: Non-negative on success, negative on failure
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Feb 19 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_assert_internal(hsize_t parent_all_nrec, H5B2_shared_t *shared, H5B2_internal_t *internal)
-{
- hsize_t tot_all_nrec; /* Total number of records at or below this node */
- unsigned u,v; /* Local index variables */
-
- /* General sanity checking on node */
- HDassert(internal->nrec<=shared->split_int_nrec);
-
- /* Sanity checking on records */
- for(u=0; u<internal->nrec; u++)
- for(v=0; v<u; v++)
- HDassert((shared->type->compare)(H5B2_INT_NREC(internal,shared,u), H5B2_INT_NREC(internal,shared,v))>0);
-
- /* Sanity checking on node pointers */
- tot_all_nrec=internal->nrec;
- for(u=0; u<internal->nrec+1; u++) {
- tot_all_nrec += internal->node_ptrs[u].all_nrec;
-
- HDassert(H5F_addr_defined(internal->node_ptrs[u].addr));
- HDassert(internal->node_ptrs[u].addr>0);
- for(v=0; v<u; v++)
- HDassert(internal->node_ptrs[u].addr!=internal->node_ptrs[v].addr);
- } /* end for */
-
- /* Sanity check all_nrec total in parent */
- if(parent_all_nrec>0)
- HDassert(tot_all_nrec == parent_all_nrec);
-
- return(0);
-} /* end H5B2_assert_internal() */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5B2_assert_internal2
- *
- * Purpose: Verify than internal nodes are mostly sane
- *
- * Return: Non-negative on success, negative on failure
- *
- * Programmer: Quincey Koziol
- * koziol@ncsa.uiuc.edu
- * Feb 19 2005
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5B2_assert_internal2(hsize_t parent_all_nrec, H5B2_shared_t *shared, H5B2_internal_t *internal, H5B2_internal_t *internal2)
-{
- hsize_t tot_all_nrec; /* Total number of records at or below this node */
- unsigned u,v; /* Local index variables */
-
- /* General sanity checking on node */
- HDassert(internal->nrec<=shared->split_int_nrec);
-
- /* Sanity checking on records */
- for(u=0; u<internal->nrec; u++)
- for(v=0; v<u; v++)
- HDassert((shared->type->compare)(H5B2_INT_NREC(internal,shared,u), H5B2_INT_NREC(internal,shared,v))>0);
-
- /* Sanity checking on node pointers */
- tot_all_nrec=internal->nrec;
- for(u=0; u<internal->nrec+1; u++) {
- tot_all_nrec += internal->node_ptrs[u].all_nrec;
-
- HDassert(H5F_addr_defined(internal->node_ptrs[u].addr));
- HDassert(internal->node_ptrs[u].addr>0);
- for(v=0; v<u; v++)
- HDassert(internal->node_ptrs[u].addr!=internal->node_ptrs[v].addr);
- for(v=0; v<internal2->nrec+1; v++)
- HDassert(internal->node_ptrs[u].addr!=internal2->node_ptrs[v].addr);
- } /* end for */
-
- /* Sanity check all_nrec total in parent */
- if(parent_all_nrec>0)
- HDassert(tot_all_nrec == parent_all_nrec);
-
- return(0);
-} /* end H5B2_assert_internal2() */
-#endif /* H5B2_DEBUG */
-