diff options
Diffstat (limited to 'src/H5B2.c')
| -rw-r--r-- | src/H5B2.c | 281 |
1 files changed, 267 insertions, 14 deletions
@@ -92,6 +92,12 @@ static herr_t H5B2_remove_leaf(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared, 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); #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); @@ -2798,7 +2804,7 @@ H5B2_iterate_node(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared, unsigned depth, 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_WRITE))) + 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 */ @@ -2811,7 +2817,7 @@ H5B2_iterate_node(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared, unsigned depth, 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))) + 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 */ @@ -2886,7 +2892,7 @@ H5B2_iterate(H5F_t *f, hid_t dxpl_id, const H5B2_class_t *type, haddr_t addr, HDassert(op); /* Look up the B-tree header */ - if (NULL == (bt2 = H5AC_protect(f, dxpl_id, H5AC_BT2_HDR, addr, type, NULL, H5AC_WRITE))) + if (NULL == (bt2 = H5AC_protect(f, dxpl_id, H5AC_BT2_HDR, addr, type, NULL, H5AC_READ))) HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree header") /* Safely grab pointer to reference counted shared B-tree info, so we can release the B-tree header if necessary */ @@ -2965,7 +2971,7 @@ H5B2_find(H5F_t *f, hid_t dxpl_id, const H5B2_class_t *type, haddr_t addr, HDassert(op); /* Look up the B-tree header */ - if (NULL == (bt2 = H5AC_protect(f, dxpl_id, H5AC_BT2_HDR, addr, type, NULL, H5AC_WRITE))) + if (NULL == (bt2 = H5AC_protect(f, dxpl_id, H5AC_BT2_HDR, addr, type, NULL, H5AC_READ))) HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree header") /* Safely grab pointer to reference counted shared B-tree info, so we can release the B-tree header if necessary */ @@ -2999,7 +3005,7 @@ H5B2_find(H5F_t *f, hid_t dxpl_id, const H5B2_class_t *type, haddr_t addr, H5B2_node_ptr_t next_node_ptr; /* Node pointer info for next node */ /* Lock B-tree current 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))) + 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") /* Locate node pointer for child */ @@ -3043,7 +3049,7 @@ H5B2_find(H5F_t *f, hid_t dxpl_id, const H5B2_class_t *type, haddr_t addr, H5B2_leaf_t *leaf; /* Pointer to leaf node in B-tree */ /* Lock B-tree leaf 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))) + 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 internal node") /* Locate record */ @@ -3128,7 +3134,7 @@ H5B2_index(H5F_t *f, hid_t dxpl_id, const H5B2_class_t *type, haddr_t addr, HDassert(op); /* Look up the B-tree header */ - if (NULL == (bt2 = H5AC_protect(f, dxpl_id, H5AC_BT2_HDR, addr, type, NULL, H5AC_WRITE))) + if (NULL == (bt2 = H5AC_protect(f, dxpl_id, H5AC_BT2_HDR, addr, type, NULL, H5AC_READ))) HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree header") /* Safely grab pointer to reference counted shared B-tree info, so we can release the B-tree header if necessary */ @@ -3166,7 +3172,7 @@ H5B2_index(H5F_t *f, hid_t dxpl_id, const H5B2_class_t *type, haddr_t addr, unsigned u; /* Local index variable */ /* Lock B-tree current 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))) + 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") /* Search for record with correct index */ @@ -3237,7 +3243,7 @@ H5B2_index(H5F_t *f, hid_t dxpl_id, const H5B2_class_t *type, haddr_t addr, H5B2_leaf_t *leaf; /* Pointer to leaf node in B-tree */ /* Lock B-tree leaf 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))) + 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 internal node") /* Sanity check index */ @@ -3527,11 +3533,11 @@ H5B2_remove_internal(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared, /* 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_node_ptr,udata)<0) - HGOTO_ERROR(H5E_BTREE, H5E_CANTINSERT, FAIL, "unable to remove record from B-tree internal node") + 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_CANTINSERT, FAIL, "unable to remove record from B-tree leaf node") + 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 */ @@ -3599,13 +3605,13 @@ H5B2_remove(H5F_t *f, hid_t dxpl_id, const H5B2_class_t *type, haddr_t addr, hbool_t depth_decreased=FALSE; /* Flag to indicate whether the depth of the B-tree decreased */ if(H5B2_remove_internal(f,dxpl_id,bt2->shared, &depth_decreased, NULL, bt2->depth,&(bt2->cache_info),&bt2->root,udata)<0) - HGOTO_ERROR(H5E_BTREE, H5E_CANTINSERT, FAIL, "unable to remove record from B-tree internal node") + HGOTO_ERROR(H5E_BTREE, H5E_CANTDELETE, FAIL, "unable to remove record from B-tree internal node") bt2->depth -= depth_decreased; } /* end if */ else { if(H5B2_remove_leaf(f,dxpl_id,bt2->shared,&bt2->root,udata)<0) - HGOTO_ERROR(H5E_BTREE, H5E_CANTINSERT, FAIL, "unable to remove record from B-tree leaf node") + HGOTO_ERROR(H5E_BTREE, H5E_CANTDELETE, FAIL, "unable to remove record from B-tree leaf node") } /* end else */ /* Decrement # of records in B-tree */ @@ -3652,7 +3658,7 @@ H5B2_get_nrec(H5F_t *f, hid_t dxpl_id, const H5B2_class_t *type, haddr_t addr, HDassert(nrec); /* Look up the B-tree header */ - if (NULL == (bt2 = H5AC_protect(f, dxpl_id, H5AC_BT2_HDR, addr, type, NULL, H5AC_WRITE))) + if (NULL == (bt2 = H5AC_protect(f, dxpl_id, H5AC_BT2_HDR, addr, type, NULL, H5AC_READ))) HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree header") /* Get B-tree number of records */ @@ -3666,6 +3672,253 @@ done: FUNC_LEAVE_NOAPI(ret_value) } /* H5B2_get_nrec() */ + +/*------------------------------------------------------------------------- + * 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 + * B-tree 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 8 2005 + * + *------------------------------------------------------------------------- + */ +herr_t +H5B2_neighbor(H5F_t *f, hid_t dxpl_id, const H5B2_class_t *type, haddr_t addr, + H5B2_compare_t range, void *udata, H5B2_found_t op, void *op_data) +{ + H5B2_t *bt2=NULL; /* Pointer to the B-tree header */ + herr_t ret_value = SUCCEED; + + FUNC_ENTER_NOAPI(H5B2_neighbor, FAIL) + + /* Check arguments. */ + HDassert(f); + HDassert(type); + HDassert(H5F_addr_defined(addr)); + HDassert(op); + + /* Look up the B-tree header */ + if (NULL == (bt2 = H5AC_protect(f, dxpl_id, H5AC_BT2_HDR, addr, type, NULL, H5AC_READ))) + HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree header") + + /* Attempt to find neighbor record in B-tree */ + if(bt2->depth>0) { + if(H5B2_neighbor_internal(f, dxpl_id, bt2->shared, bt2->depth, &bt2->root, NULL, range, 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, &bt2->root, NULL, range, 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 header info */ + if (bt2 && H5AC_unprotect(f, dxpl_id, H5AC_BT2_HDR, addr, bt2, H5AC__NO_FLAGS_SET) < 0) + HDONE_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree header info") + + FUNC_LEAVE_NOAPI(ret_value) +} /* H5B2_neighbor() */ + #ifdef H5B2_DEBUG /*------------------------------------------------------------------------- |