hdf5.git - Mirror from: https://github.com/HDFGroup/hdf5.git

	Commit message (Expand)	Author	Age	Files	Lines
*	Merge pull request #426 in HDFFV/hdf5 from ~LRKNOX/hdf5_lrk:hdf5_1_10 to hdf5...	Larry Knox	2017-04-25	1	-6/+4

*	[svn-r30017] Description:	Quincey Koziol	2016-06-06	1	-33/+38

*	[svn-r22219] Description:	Quincey Koziol	2012-03-31	1	-0/+91

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Copyright by The HDF Group. * * Copyright by the Board of Trustees of the University of Illinois. * * All rights reserved. * * * * This file is part of HDF5. The full HDF5 copyright notice, including * * terms governing use, modification, and redistribution, is contained in * * the files COPYING and Copyright.html. COPYING can be found at the root * * of the source code distribution tree; Copyright.html can be found at the * * root level of an installed copy of the electronic HDF5 document set and * * is linked from the top-level documents page. It can also be found at * * http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have * * access to either file, you may request a copy from help@hdfgroup.org. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /*------------------------------------------------------------------------- * * Created: H5B2.c * Jan 31 2005 * Quincey Koziol <koziol@ncsa.uiuc.edu> * * Purpose: Implements a B-tree, with several modifications from * the "standard" methods. * * Please see the documentation in: * doc/html/TechNotes/Btrees.html for a full description * of how they work, etc. * *------------------------------------------------------------------------- */ /****************/ /* Module Setup */ /****************/ #define H5B2_PACKAGE /*suppress error about including H5B2pkg */ /***********/ /* Headers */ /***********/ #include "H5private.h" /* Generic Functions */ #include "H5B2pkg.h" /* v2 B-trees */ #include "H5Eprivate.h" /* Error handling */ /****************/ /* Local Macros */ /****************/ /******************/ /* Local Typedefs */ /******************/ /********************/ /* Package Typedefs */ /********************/ /********************/ /* Local Prototypes */ /********************/ /*********************/ /* Package Variables */ /*********************/ /* v2 B-tree client ID to class mapping */ /* Remember to add client ID to H5B2_subid_t in H5B2private.h when adding a new * client class.. */ extern const H5B2_class_t H5B2_TEST[1]; extern const H5B2_class_t H5HF_HUGE_BT2_INDIR[1]; extern const H5B2_class_t H5HF_HUGE_BT2_FILT_INDIR[1]; extern const H5B2_class_t H5HF_HUGE_BT2_DIR[1]; extern const H5B2_class_t H5HF_HUGE_BT2_FILT_DIR[1]; extern const H5B2_class_t H5G_BT2_NAME[1]; extern const H5B2_class_t H5G_BT2_CORDER[1]; extern const H5B2_class_t H5SM_INDEX[1]; extern const H5B2_class_t H5A_BT2_NAME[1]; extern const H5B2_class_t H5A_BT2_CORDER[1]; const H5B2_class_t *const H5B2_client_class_g[] = { H5B2_TEST, /* 0 - H5B2_TEST_ID */ H5HF_HUGE_BT2_INDIR, /* 1 - H5B2_FHEAP_HUGE_INDIR_ID */ H5HF_HUGE_BT2_FILT_INDIR, /* 2 - H5B2_FHEAP_HUGE_FILT_INDIR_ID */ H5HF_HUGE_BT2_DIR, /* 3 - H5B2_FHEAP_HUGE_DIR_ID */ H5HF_HUGE_BT2_FILT_DIR, /* 4 - H5B2_FHEAP_HUGE_FILT_DIR_ID */ H5G_BT2_NAME, /* 5 - H5B2_GRP_DENSE_NAME_ID */ H5G_BT2_CORDER, /* 6 - H5B2_GRP_DENSE_CORDER_ID */ H5SM_INDEX, /* 7 - H5B2_SOHM_INDEX_ID */ H5A_BT2_NAME, /* 8 - H5B2_ATTR_DENSE_NAME_ID */ H5A_BT2_CORDER, /* 9 - H5B2_ATTR_DENSE_CORDER_ID */ }; /*****************************/ /* Library Private Variables */ /*****************************/ /*******************/ /* Local Variables */ /*******************/ /* Declare a free list to manage the H5B2_t struct */ H5FL_DEFINE_STATIC(H5B2_t); /*------------------------------------------------------------------------- * Function: H5B2_create * * Purpose: Creates a new empty B-tree in the file. * * Return: Non-negative on success (with address of new B-tree * filled in), negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Jan 31 2005 * *------------------------------------------------------------------------- */ H5B2_t * H5B2_create(H5F_t *f, hid_t dxpl_id, const H5B2_create_t *cparam, void *ctx_udata) { H5B2_t *bt2 = NULL; /* Pointer to the B-tree */ H5B2_hdr_t *hdr = NULL; /* Pointer to the B-tree header */ haddr_t hdr_addr; /* B-tree header address */ H5B2_t *ret_value; /* Return value */ FUNC_ENTER_NOAPI(H5B2_create, NULL) /* * Check arguments. */ HDassert(f); HDassert(cparam); /* H5B2 interface sanity check */ HDcompile_assert(H5B2_NUM_BTREE_ID == NELMTS(H5B2_client_class_g)); /* Create shared v2 B-tree header */ if(HADDR_UNDEF == (hdr_addr = H5B2_hdr_create(f, dxpl_id, cparam, ctx_udata))) HGOTO_ERROR(H5E_BTREE, H5E_CANTINIT, NULL, "can't create v2 B-tree header") /* Create v2 B-tree wrapper */ if(NULL == (bt2 = H5FL_MALLOC(H5B2_t))) HGOTO_ERROR(H5E_BTREE, H5E_CANTALLOC, NULL, "memory allocation failed for v2 B-tree info") /* Look up the B-tree header */ if(NULL == (hdr = (H5B2_hdr_t *)H5AC_protect(f, dxpl_id, H5AC_BT2_HDR, hdr_addr, NULL, ctx_udata, H5AC_WRITE))) HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, NULL, "unable to load B-tree header") /* Point v2 B-tree wrapper at header and bump it's ref count */ bt2->hdr = hdr; if(H5B2_hdr_incr(bt2->hdr) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTINC, NULL, "can't increment reference count on shared v2 B-tree header") /* Increment # of files using this v2 B-tree header */ if(H5B2_hdr_fuse_incr(bt2->hdr) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTINC, NULL, "can't increment file reference count on shared v2 B-tree header") /* Set file pointer for this v2 B-tree open context */ bt2->f = f; /* Set the return value */ ret_value = bt2; done: if(hdr && H5AC_unprotect(f, dxpl_id, H5AC_BT2_HDR, hdr_addr, hdr, H5AC__NO_FLAGS_SET) < 0) HDONE_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, NULL, "unable to release v2 B-tree header") if(!ret_value && bt2) if(H5B2_close(bt2, dxpl_id) < 0) HDONE_ERROR(H5E_BTREE, H5E_CANTCLOSEOBJ, NULL, "unable to close v2 B-tree") FUNC_LEAVE_NOAPI(ret_value) } /* end H5B2_create() */ /*------------------------------------------------------------------------- * Function: H5B2_open * * Purpose: Opens an existing v2 B-tree in the file. * * Return: Pointer to v2 B-tree wrapper on success * NULL on failure * * Programmer: Quincey Koziol * koziol@hdfgroup.org * Oct 15 2009 * *------------------------------------------------------------------------- */ H5B2_t * H5B2_open(H5F_t *f, hid_t dxpl_id, haddr_t addr, void *ctx_udata) { H5B2_t *bt2 = NULL; /* Pointer to the B-tree */ H5B2_hdr_t *hdr = NULL; /* Pointer to the B-tree header */ H5B2_t *ret_value; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5B2_open) /* Check arguments. */ HDassert(f); HDassert(H5F_addr_defined(addr)); /* Look up the B-tree header */ if(NULL == (hdr = (H5B2_hdr_t *)H5AC_protect(f, dxpl_id, H5AC_BT2_HDR, addr, NULL, ctx_udata, H5AC_READ))) HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, NULL, "unable to load B-tree header") /* Check for pending heap deletion */ if(hdr->pending_delete) HGOTO_ERROR(H5E_BTREE, H5E_CANTOPENOBJ, NULL, "can't open v2 B-tree pending deletion") /* Create v2 B-tree info */ if(NULL == (bt2 = H5FL_MALLOC(H5B2_t))) HGOTO_ERROR(H5E_BTREE, H5E_CANTALLOC, NULL, "memory allocation failed for v2 B-tree info") /* Point v2 B-tree wrapper at header */ bt2->hdr = hdr; if(H5B2_hdr_incr(bt2->hdr) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTINC, NULL, "can't increment reference count on shared v2 B-tree header") /* Increment # of files using this v2 B-tree header */ if(H5B2_hdr_fuse_incr(bt2->hdr) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTINC, NULL, "can't increment file reference count on shared v2 B-tree header") /* Set file pointer for this v2 B-tree open context */ bt2->f = f; /* Set the return value */ ret_value = bt2; done: if(hdr && H5AC_unprotect(f, dxpl_id, H5AC_BT2_HDR, addr, hdr, H5AC__NO_FLAGS_SET) < 0) HDONE_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, NULL, "unable to release v2 B-tree header") if(!ret_value && bt2) if(H5B2_close(bt2, dxpl_id) < 0) HDONE_ERROR(H5E_BTREE, H5E_CANTCLOSEOBJ, NULL, "unable to close v2 B-tree") FUNC_LEAVE_NOAPI(ret_value) } /* H5B2_open() */ /*------------------------------------------------------------------------- * Function: H5B2_insert * * Purpose: Adds a new record to the B-tree. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Feb 2 2005 * *------------------------------------------------------------------------- */ herr_t H5B2_insert(H5B2_t *bt2, hid_t dxpl_id, void *udata) { H5B2_hdr_t *hdr; /* Pointer to the B-tree header */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5B2_insert, FAIL) /* Check arguments. */ HDassert(bt2); HDassert(udata); /* Set the shared v2 B-tree header's file context for this operation */ bt2->hdr->f = bt2->f; /* Get the v2 B-tree header */ hdr = bt2->hdr; /* Check if the root node is allocated yet */ if(!H5F_addr_defined(hdr->root.addr)) { /* Create root node as leaf node in B-tree */ if(H5B2_create_leaf(hdr, dxpl_id, &(hdr->root)) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTINIT, FAIL, "unable to create root node") } /* end if */ /* Check if we need to split the root node (equiv. to a 1->2 node split) */ else if(hdr->root.node_nrec == hdr->node_info[hdr->depth].split_nrec) { /* Split root node */ if(H5B2_split_root(hdr, dxpl_id) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTSPLIT, FAIL, "unable to split root node") } /* end if */ /* Attempt to insert record into B-tree */ if(hdr->depth > 0) { if(H5B2_insert_internal(hdr, dxpl_id, hdr->depth, NULL, &hdr->root, 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(hdr, dxpl_id, &hdr->root, udata) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTINSERT, FAIL, "unable to insert record into B-tree leaf node") } /* end else */ /* Mark B-tree header as dirty */ if(H5B2_hdr_dirty(hdr) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTMARKDIRTY, FAIL, "unable to mark B-tree header dirty") done: FUNC_LEAVE_NOAPI(ret_value) } /* H5B2_insert() */ /*------------------------------------------------------------------------- * Function: H5B2_get_addr * * Purpose: Get the address of a v2 B-tree * * Return: SUCCEED/FAIL * * Programmer: Quincey Koziol * koziol@hdfgroup.org * Nov 5 2009 * *------------------------------------------------------------------------- */ herr_t H5B2_get_addr(const H5B2_t *bt2, haddr_t *addr_p) { FUNC_ENTER_NOAPI_NOFUNC(H5B2_get_addr) /* * Check arguments. */ HDassert(bt2); HDassert(addr_p); /* Retrieve the header address for this v2 B-tree */ *addr_p = bt2->hdr->addr; FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5B2_get_addr() */ /*------------------------------------------------------------------------- * Function: H5B2_iterate * * Purpose: Iterate over all the records in the B-tree, 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 * *------------------------------------------------------------------------- */ herr_t H5B2_iterate(H5B2_t *bt2, hid_t dxpl_id, H5B2_operator_t op, void *op_data) { H5B2_hdr_t *hdr; /* Pointer to the B-tree header */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOERR(H5B2_iterate, -) /* Check arguments. */ HDassert(bt2); HDassert(op); /* Set the shared v2 B-tree header's file context for this operation */ bt2->hdr->f = bt2->f; /* Get the v2 B-tree header */ hdr = bt2->hdr; /* Iterate through records */ if(hdr->root.node_nrec > 0) { /* Iterate through nodes */ if((ret_value = H5B2_iterate_node(hdr, dxpl_id, hdr->depth, &hdr->root, op, op_data)) < 0) HERROR(H5E_BTREE, H5E_CANTLIST, "node iteration failed"); } /* end if */ FUNC_LEAVE_NOAPI(ret_value) } /* H5B2_iterate() */ /*------------------------------------------------------------------------- * Function: H5B2_find * * Purpose: Locate the specified information in a B-tree and return * that information by calling the provided 'OP' routine with an * OP_DATA pointer. The UDATA parameter points to 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. * * If 'OP' is NULL, then this routine just returns "TRUE" when * a record is present in the B-tree. * * Return: Non-negative (TRUE/FALSE) on success, negative on failure. * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Feb 23 2005 * *------------------------------------------------------------------------- */ htri_t H5B2_find(H5B2_t *bt2, hid_t dxpl_id, void *udata, H5B2_found_t op, void *op_data) { H5B2_hdr_t *hdr; /* Pointer to the B-tree header */ H5B2_node_ptr_t curr_node_ptr; /* Node pointer info for current node */ unsigned depth; /* Current depth of the tree */ int cmp; /* Comparison value of records */ unsigned idx; /* Location of record which matches key */ htri_t ret_value = TRUE; /* Return value */ FUNC_ENTER_NOAPI(H5B2_find, FAIL) /* Check arguments. */ HDassert(bt2); /* Set the shared v2 B-tree header's file context for this operation */ bt2->hdr->f = bt2->f; /* Get the v2 B-tree header */ hdr = bt2->hdr; /* Make copy of the root node pointer to start search with */ curr_node_ptr = hdr->root; /* Current depth of the tree */ depth = hdr->depth; /* Check for empty tree */ if(curr_node_ptr.node_nrec == 0) HGOTO_DONE(FALSE) /* Walk down B-tree to find record or leaf node where record is located */ cmp = -1; while(depth > 0 && cmp != 0) { H5B2_internal_t *internal; /* Pointer to internal node in B-tree */ H5B2_node_ptr_t next_node_ptr; /* Node pointer info for next node */ /* Lock B-tree current node */ if(NULL == (internal = H5B2_protect_internal(hdr, dxpl_id, curr_node_ptr.addr, curr_node_ptr.node_nrec, depth, H5AC_READ))) HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node") /* Locate node pointer for child */ cmp = H5B2_locate_record(hdr->cls, internal->nrec, hdr->nat_off, internal->int_native, udata, &idx); if(cmp > 0) idx++; if(cmp != 0) { /* Get node pointer for next node to search */ next_node_ptr=internal->node_ptrs[idx]; /* Unlock current node */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_BT2_INT, curr_node_ptr.addr, internal, H5AC__NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree node") /* Set pointer to next node to load */ curr_node_ptr = next_node_ptr; } /* end if */ else { /* Make callback for current record */ if(op && (op)(H5B2_INT_NREC(internal, hdr, idx), op_data) < 0) { /* Unlock current node */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_BT2_INT, curr_node_ptr.addr, internal, H5AC__NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree node") HGOTO_ERROR(H5E_BTREE, H5E_NOTFOUND, FAIL, "'found' callback failed for B-tree find operation") } /* end if */ /* Unlock current node */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_BT2_INT, curr_node_ptr.addr, internal, H5AC__NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree node") /* Indicate record found */ HGOTO_DONE(TRUE) } /* end else */ /* Decrement depth we're at in B-tree */ depth--; } /* end while */ { H5B2_leaf_t *leaf; /* Pointer to leaf node in B-tree */ /* Lock B-tree leaf node */ if(NULL == (leaf = (H5B2_leaf_t *)H5AC_protect(hdr->f, dxpl_id, H5AC_BT2_LEAF, curr_node_ptr.addr, &(curr_node_ptr.node_nrec), hdr, H5AC_READ))) HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node") /* Locate record */ cmp = H5B2_locate_record(hdr->cls, leaf->nrec, hdr->nat_off, leaf->leaf_native, udata, &idx); if(cmp != 0) { /* Unlock leaf node */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_BT2_LEAF, curr_node_ptr.addr, leaf, H5AC__NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree node") /* Record not found */ HGOTO_DONE(FALSE) } /* end if */ else { /* Make callback for current record */ if(op && (op)(H5B2_LEAF_NREC(leaf, hdr, idx), op_data) < 0) { /* Unlock current node */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_BT2_LEAF, curr_node_ptr.addr, leaf, H5AC__NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree node") HGOTO_ERROR(H5E_BTREE, H5E_NOTFOUND, FAIL, "'found' callback failed for B-tree find operation") } /* end if */ } /* end else */ /* Unlock current node */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_BT2_LEAF, curr_node_ptr.addr, leaf, H5AC__NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree node") } /* end block */ done: FUNC_LEAVE_NOAPI(ret_value) } /* H5B2_find() */ /*------------------------------------------------------------------------- * Function: H5B2_index * * Purpose: Locate the IDX'th record in a B-tree according to the * ordering used by the B-tree. The IDX values are 0-based. * * The 'OP' routine is called with the record found and the * OP_DATA pointer, to allow caller to return information about * the record. * * Return: Non-negative on success, negative on failure. * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Feb 23 2005 * *------------------------------------------------------------------------- */ herr_t H5B2_index(H5B2_t *bt2, hid_t dxpl_id, H5_iter_order_t order, hsize_t idx, H5B2_found_t op, void *op_data) { H5B2_hdr_t *hdr; /* Pointer to the B-tree header */ H5B2_node_ptr_t curr_node_ptr; /* Node pointer info for current node */ unsigned depth; /* Current depth of the tree */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5B2_index, FAIL) /* Check arguments. */ HDassert(bt2); HDassert(op); /* Set the shared v2 B-tree header's file context for this operation */ bt2->hdr->f = bt2->f; /* Get the v2 B-tree header */ hdr = bt2->hdr; /* Make copy of the root node pointer to start search with */ curr_node_ptr = hdr->root; /* Current depth of the tree */ depth = hdr->depth; /* Check for empty tree */ if(curr_node_ptr.node_nrec == 0) HGOTO_ERROR(H5E_BTREE, H5E_NOTFOUND, FAIL, "B-tree has no records") /* Check for index greater than the number of records in the tree */ if(idx >= curr_node_ptr.all_nrec) HGOTO_ERROR(H5E_BTREE, H5E_NOTFOUND, FAIL, "B-tree doesn't have that many records") /* Check for reverse indexing and map requested index to appropriate forward index */ if(order == H5_ITER_DEC) idx = curr_node_ptr.all_nrec - (idx + 1); /* Walk down B-tree to find record or leaf node where record is located */ while(depth > 0) { H5B2_internal_t *internal; /* Pointer to internal node in B-tree */ H5B2_node_ptr_t next_node_ptr; /* Node pointer info for next node */ unsigned u; /* Local index variable */ /* Lock B-tree current node */ if(NULL == (internal = H5B2_protect_internal(hdr, dxpl_id, curr_node_ptr.addr, curr_node_ptr.node_nrec, depth, H5AC_READ))) HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node") /* Search for record with correct index */ for(u = 0; u < internal->nrec; u++) { /* Check if record is in child node */ if(internal->node_ptrs[u].all_nrec > idx) { /* Get node pointer for next node to search */ next_node_ptr = internal->node_ptrs[u]; /* Unlock current node */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_BT2_INT, curr_node_ptr.addr, internal, H5AC__NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree node") /* Set pointer to next node to load */ curr_node_ptr = next_node_ptr; /* Break out of for loop */ break; } /* end if */ /* Check if record is in this node */ if(internal->node_ptrs[u].all_nrec == idx) { /* Make callback for current record */ if((op)(H5B2_INT_NREC(internal, hdr, u), op_data) < 0) { /* Unlock current node */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_BT2_INT, curr_node_ptr.addr, internal, H5AC__NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree node") HGOTO_ERROR(H5E_BTREE, H5E_NOTFOUND, FAIL, "'found' callback failed for B-tree find operation") } /* end if */ /* Unlock current node */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_BT2_INT, curr_node_ptr.addr, internal, H5AC__NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree node") HGOTO_DONE(SUCCEED); } /* end if */ /* Decrement index we are looking for to account for the node we * just advanced past. */ idx -= (internal->node_ptrs[u].all_nrec + 1); } /* end for */ /* Check last node pointer */ if(u == internal->nrec) { /* Check if record is in child node */ if(internal->node_ptrs[u].all_nrec > idx) { /* Get node pointer for next node to search */ next_node_ptr = internal->node_ptrs[u]; /* Unlock current node */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_BT2_INT, curr_node_ptr.addr, internal, H5AC__NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree node") /* Set pointer to next node to load */ curr_node_ptr = next_node_ptr; } /* end if */ else /* Index that is greater than the number of records in the tree? */ HDassert("Index off end of tree??" && 0); } /* end if */ /* Decrement depth we're at in B-tree */ depth--; } /* end while */ { H5B2_leaf_t *leaf; /* Pointer to leaf node in B-tree */ /* Lock B-tree leaf node */ if(NULL == (leaf = (H5B2_leaf_t *)H5AC_protect(hdr->f, dxpl_id, H5AC_BT2_LEAF, curr_node_ptr.addr, &(curr_node_ptr.node_nrec), hdr, H5AC_READ))) HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node") /* Sanity check index */ HDassert(idx < leaf->nrec); /* Make callback for correct record */ if((op)(H5B2_LEAF_NREC(leaf, hdr, idx), op_data) < 0) { /* Unlock current node */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_BT2_LEAF, curr_node_ptr.addr, leaf, H5AC__NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree node") HGOTO_ERROR(H5E_BTREE, H5E_NOTFOUND, FAIL, "'found' callback failed for B-tree find operation") } /* end if */ /* Unlock current node */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_BT2_LEAF, curr_node_ptr.addr, leaf, H5AC__NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree node") } /* end block */ done: FUNC_LEAVE_NOAPI(ret_value) } /* H5B2_index() */ /*------------------------------------------------------------------------- * Function: H5B2_remove * * Purpose: Removes a record from a B-tree. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Feb 25 2005 * *------------------------------------------------------------------------- */ herr_t H5B2_remove(H5B2_t *bt2, hid_t dxpl_id, void *udata, H5B2_remove_t op, void *op_data) { H5B2_hdr_t *hdr; /* Pointer to the B-tree header */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5B2_remove, FAIL) /* Check arguments. */ HDassert(bt2); /* Set the shared v2 B-tree header's file context for this operation */ bt2->hdr->f = bt2->f; /* Get the v2 B-tree header */ hdr = bt2->hdr; /* Check for empty B-tree */ if(0 == hdr->root.all_nrec) HGOTO_ERROR(H5E_BTREE, H5E_NOTFOUND, FAIL, "record is not in B-tree") /* Attempt to remove record from B-tree */ if(hdr->depth > 0) { hbool_t depth_decreased = FALSE; /* Flag to indicate whether the depth of the B-tree decreased */ if(H5B2_remove_internal(hdr, dxpl_id, &depth_decreased, NULL, hdr->depth, &(hdr->cache_info), NULL, &hdr->root, udata, op, op_data) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTDELETE, FAIL, "unable to remove record from B-tree internal node") /* Check for decreasing the depth of the B-tree */ if(depth_decreased) { /* Destroy free list factories for previous depth */ if(hdr->node_info[hdr->depth].nat_rec_fac) if(H5FL_fac_term(hdr->node_info[hdr->depth].nat_rec_fac) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't destroy node's native record block factory") if(hdr->node_info[hdr->depth].node_ptr_fac) if(H5FL_fac_term(hdr->node_info[hdr->depth].node_ptr_fac) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't destroy node's node pointer block factory") hdr->depth -= (uint16_t)depth_decreased; } /* end for */ } /* end if */ else { if(H5B2_remove_leaf(hdr, dxpl_id, &hdr->root, udata, op, op_data) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTDELETE, FAIL, "unable to remove record from B-tree leaf node") } /* end else */ /* Decrement # of records in B-tree */ hdr->root.all_nrec--; /* Mark B-tree header as dirty */ if(H5B2_hdr_dirty(hdr) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTMARKDIRTY, FAIL, "unable to mark B-tree header dirty") done: FUNC_LEAVE_NOAPI(ret_value) } /* H5B2_remove() */ /*------------------------------------------------------------------------- * Function: H5B2_remove_by_idx * * Purpose: Removes the n'th record from a B-tree. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@hdfgroup.org * Nov 14 2006 * *------------------------------------------------------------------------- */ herr_t H5B2_remove_by_idx(H5B2_t *bt2, hid_t dxpl_id, H5_iter_order_t order, hsize_t idx, H5B2_remove_t op, void *op_data) { H5B2_hdr_t *hdr; /* Pointer to the B-tree header */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5B2_remove_by_idx, FAIL) /* Check arguments. */ HDassert(bt2); /* Set the shared v2 B-tree header's file context for this operation */ bt2->hdr->f = bt2->f; /* Get the v2 B-tree header */ hdr = bt2->hdr; /* Check for empty B-tree */ if(0 == hdr->root.all_nrec) HGOTO_ERROR(H5E_BTREE, H5E_NOTFOUND, FAIL, "record is not in B-tree") /* Check for index greater than the number of records in the tree */ if(idx >= hdr->root.all_nrec) HGOTO_ERROR(H5E_BTREE, H5E_NOTFOUND, FAIL, "B-tree doesn't have that many records") /* Check for reverse indexing and map requested index to appropriate forward index */ if(H5_ITER_DEC == order) idx = hdr->root.all_nrec - (idx + 1); /* Attempt to remove record from B-tree */ if(hdr->depth > 0) { hbool_t depth_decreased = FALSE; /* Flag to indicate whether the depth of the B-tree decreased */ if(H5B2_remove_internal_by_idx(hdr, dxpl_id, &depth_decreased, NULL, hdr->depth, &(hdr->cache_info), NULL, &hdr->root, idx, op, op_data) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTDELETE, FAIL, "unable to remove record from B-tree internal node") /* Check for decreasing the depth of the B-tree */ if(depth_decreased) { /* Destroy free list factories for previous depth */ if(hdr->node_info[hdr->depth].nat_rec_fac) if(H5FL_fac_term(hdr->node_info[hdr->depth].nat_rec_fac) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't destroy node's native record block factory") if(hdr->node_info[hdr->depth].node_ptr_fac) if(H5FL_fac_term(hdr->node_info[hdr->depth].node_ptr_fac) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't destroy node's node pointer block factory") hdr->depth -= (uint16_t)depth_decreased; } /* end for */ } /* end if */ else { if(H5B2_remove_leaf_by_idx(hdr, dxpl_id, &hdr->root, (unsigned)idx, op, op_data) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTDELETE, FAIL, "unable to remove record from B-tree leaf node") } /* end else */ /* Decrement # of records in B-tree */ hdr->root.all_nrec--; /* Mark B-tree header as dirty */ if(H5B2_hdr_dirty(hdr) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTMARKDIRTY, FAIL, "unable to mark B-tree header dirty") done: FUNC_LEAVE_NOAPI(ret_value) } /* H5B2_remove_by_idx() */ /*------------------------------------------------------------------------- * Function: H5B2_get_nrec * * Purpose: Retrieves the number of records in a B-tree * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Feb 25 2005 * *------------------------------------------------------------------------- */ herr_t H5B2_get_nrec(const H5B2_t *bt2, hsize_t *nrec) { FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5B2_get_nrec) /* Check arguments. */ HDassert(bt2); HDassert(nrec); /* Get B-tree number of records */ *nrec = bt2->hdr->root.all_nrec; FUNC_LEAVE_NOAPI(SUCCEED) } /* H5B2_get_nrec() */ /*------------------------------------------------------------------------- * 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(H5B2_t *bt2, hid_t dxpl_id, H5B2_compare_t range, void *udata, H5B2_found_t op, void *op_data) { H5B2_hdr_t *hdr; /* Pointer to the B-tree header */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5B2_neighbor, FAIL) /* Check arguments. */ HDassert(bt2); HDassert(op); /* Set the shared v2 B-tree header's file context for this operation */ bt2->hdr->f = bt2->f; /* Get the v2 B-tree header */ hdr = bt2->hdr; /* Check for empty tree */ if(!H5F_addr_defined(hdr->root.addr)) HGOTO_ERROR(H5E_BTREE, H5E_NOTFOUND, FAIL, "B-tree has no records") /* Attempt to find neighbor record in B-tree */ if(hdr->depth > 0) { if(H5B2_neighbor_internal(hdr, dxpl_id, hdr->depth, &hdr->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(hdr, dxpl_id, &hdr->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: FUNC_LEAVE_NOAPI(ret_value) } /* H5B2_neighbor() */ /*------------------------------------------------------------------------- * Function: H5B2_modify * * Purpose: Locate the specified information in a B-tree and modify it. * The UDATA points to additional data passed * to the key comparison function for locating the record to * modify. * * The 'OP' routine is called with the record found and the * OP_DATA pointer, to allow caller to modify information about * the record. * * Return: Non-negative on success, negative on failure. * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Mar 10 2005 * *------------------------------------------------------------------------- */ herr_t H5B2_modify(H5B2_t *bt2, hid_t dxpl_id, void *udata, H5B2_modify_t op, void *op_data) { H5B2_hdr_t *hdr; /* Pointer to the B-tree header */ H5B2_node_ptr_t curr_node_ptr; /* Node pointer info for current node */ unsigned depth; /* Current depth of the tree */ int cmp; /* Comparison value of records */ unsigned idx; /* Location of record which matches key */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5B2_modify, FAIL) /* Check arguments. */ HDassert(bt2); HDassert(op); /* Set the shared v2 B-tree header's file context for this operation */ bt2->hdr->f = bt2->f; /* Get the v2 B-tree header */ hdr = bt2->hdr; /* Make copy of the root node pointer to start search with */ curr_node_ptr = hdr->root; /* Current depth of the tree */ depth = hdr->depth; /* Check for empty tree */ if(0 == curr_node_ptr.node_nrec) HGOTO_ERROR(H5E_BTREE, H5E_NOTFOUND, FAIL, "B-tree has no records") /* Walk down B-tree to find record or leaf node where record is located */ cmp = -1; while(depth > 0 && cmp != 0) { unsigned internal_flags = H5AC__NO_FLAGS_SET; H5B2_internal_t *internal; /* Pointer to internal node in B-tree */ H5B2_node_ptr_t next_node_ptr; /* Node pointer info for next node */ /* Lock B-tree current node */ if(NULL == (internal = H5B2_protect_internal(hdr, dxpl_id, curr_node_ptr.addr, curr_node_ptr.node_nrec, depth, H5AC_WRITE))) HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node") /* Locate node pointer for child */ cmp = H5B2_locate_record(hdr->cls, internal->nrec, hdr->nat_off, internal->int_native, udata, &idx); if(cmp > 0) idx++; if(cmp != 0) { /* Get node pointer for next node to search */ next_node_ptr = internal->node_ptrs[idx]; /* Unlock current node */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_BT2_INT, curr_node_ptr.addr, internal, H5AC__NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree node") /* Set pointer to next node to load */ curr_node_ptr = next_node_ptr; } /* end if */ else { hbool_t changed; /* Whether the 'modify' callback changed the record */ /* Make callback for current record */ if((op)(H5B2_INT_NREC(internal, hdr, idx), op_data, &changed) < 0) { /* Make certain that the callback didn't modify the value if it failed */ HDassert(changed == FALSE); /* Unlock current node */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_BT2_INT, curr_node_ptr.addr, internal, H5AC__NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree node") HGOTO_ERROR(H5E_BTREE, H5E_CANTMODIFY, FAIL, "'modify' callback failed for B-tree find operation") } /* end if */ /* Mark the node as dirty if it changed */ internal_flags |= changed ? H5AC__DIRTIED_FLAG : 0; /* Unlock current node */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_BT2_INT, curr_node_ptr.addr, internal, internal_flags) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree node") HGOTO_DONE(SUCCEED); } /* end else */ /* Decrement depth we're at in B-tree */ depth--; } /* end while */ { unsigned leaf_flags = H5AC__NO_FLAGS_SET; H5B2_leaf_t *leaf; /* Pointer to leaf node in B-tree */ hbool_t changed = FALSE;/* Whether the 'modify' callback changed the record */ /* Lock B-tree leaf node */ if(NULL == (leaf = (H5B2_leaf_t *)H5AC_protect(hdr->f, dxpl_id, H5AC_BT2_LEAF, curr_node_ptr.addr, &(curr_node_ptr.node_nrec), hdr, H5AC_WRITE))) HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node") /* Locate record */ cmp = H5B2_locate_record(hdr->cls, leaf->nrec, hdr->nat_off, leaf->leaf_native, udata, &idx); if(cmp != 0) { /* Unlock leaf node */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_BT2_LEAF, curr_node_ptr.addr, leaf, H5AC__NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree node") /* Note: don't push error on stack, leave that to next higher level, * since many times the B-tree is searched in order to determine * if an object exists in the B-tree or not. -QAK */ #ifdef OLD_WAY HGOTO_ERROR(H5E_BTREE, H5E_NOTFOUND, FAIL, "key not found in leaf node") #else /* OLD_WAY */ HGOTO_DONE(FAIL) #endif /* OLD_WAY */ } /* end if */ else { /* Make callback for current record */ if((op)(H5B2_LEAF_NREC(leaf, hdr, idx), op_data, &changed) < 0) { /* Make certain that the callback didn't modify the value if it failed */ HDassert(changed == FALSE); /* Unlock current node */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_BT2_LEAF, curr_node_ptr.addr, leaf, H5AC__NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree node") HGOTO_ERROR(H5E_BTREE, H5E_CANTMODIFY, FAIL, "'modify' callback failed for B-tree find operation") } /* end if */ } /* end else */ /* Mark the node as dirty if it changed */ leaf_flags |= (changed ? H5AC__DIRTIED_FLAG : 0); /* Unlock current node */ if(H5AC_unprotect(hdr->f, dxpl_id, H5AC_BT2_LEAF, curr_node_ptr.addr, leaf, leaf_flags) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree node") } done: FUNC_LEAVE_NOAPI(ret_value) } /* H5B2_modify() */ /*------------------------------------------------------------------------- * Function: H5B2_close * * Purpose: Close a v2 B-tree * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@hdfgroup.org * Oct 15 2009 * *------------------------------------------------------------------------- */ herr_t H5B2_close(H5B2_t *bt2, hid_t dxpl_id) { haddr_t bt2_addr = HADDR_UNDEF; /* Address of v2 B-tree (for deletion) */ hbool_t pending_delete = FALSE; /* Whether the v2 B-tree is pending deletion */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5B2_close) /* Check arguments. */ HDassert(bt2); HDassert(bt2->f); /* Decrement file reference & check if this is the last open v2 B-tree using the shared B-tree header */ if(0 == H5B2_hdr_fuse_decr(bt2->hdr)) { /* Set the shared v2 B-tree header's file context for this operation */ bt2->hdr->f = bt2->f; /* Check for pending B-tree deletion */ if(bt2->hdr->pending_delete) { /* Set local info, so B-tree deletion can occur after decrementing the * header's ref count */ pending_delete = TRUE; bt2_addr = bt2->hdr->addr; } /* end if */ } /* end if */ /* Check for pending v2 B-tree deletion */ if(pending_delete) { H5B2_hdr_t *hdr; /* Another pointer to v2 B-tree header */ /* Sanity check */ HDassert(H5F_addr_defined(bt2_addr)); #ifndef NDEBUG { unsigned hdr_status = 0; /* Header's status in the metadata cache */ /* Check the header's status in the metadata cache */ if(H5AC_get_entry_status(bt2->f, bt2_addr, &hdr_status) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTGET, FAIL, "unable to check metadata cache status for v2 B-tree header, address = %llu", (unsigned long long)bt2_addr) /* Sanity checks on header */ HDassert(hdr_status & H5AC_ES__IN_CACHE); HDassert(hdr_status & H5AC_ES__IS_PINNED); HDassert(!(hdr_status & H5AC_ES__IS_PROTECTED)); } #endif /* NDEBUG */ /* Lock the v2 B-tree header into memory */ /* (OK to pass in NULL for callback context, since we know the header must be in the cache) */ if(NULL == (hdr = (H5B2_hdr_t *)H5AC_protect(bt2->f, dxpl_id, H5AC_BT2_HDR, bt2_addr, NULL, NULL, H5AC_WRITE))) HGOTO_ERROR(H5E_BTREE, H5E_CANTLOAD, FAIL, "unable to load v2 B-tree header") /* Set the shared v2 B-tree header's file context for this operation */ hdr->f = bt2->f; /* Decrement the reference count on the B-tree header */ /* (don't put in H5B2_hdr_fuse_decr() as the B-tree header may be evicted * immediately -QAK) */ if(H5B2_hdr_decr(bt2->hdr) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTDEC, FAIL, "can't decrement reference count on shared v2 B-tree header") /* Delete v2 B-tree, starting with header (unprotects header) */ if(H5B2_hdr_delete(hdr, dxpl_id) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTDELETE, FAIL, "unable to delete v2 B-tree") } /* end if */ else { /* Decrement the reference count on the B-tree header */ /* (don't put in H5B2_hdr_fuse_decr() as the B-tree header may be evicted * immediately -QAK) */ if(H5B2_hdr_decr(bt2->hdr) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTDEC, FAIL, "can't decrement reference count on shared v2 B-tree header") } /* end else */ /* Release the v2 B-tree wrapper */ bt2 = H5FL_FREE(H5B2_t, bt2); done: FUNC_LEAVE_NOAPI(ret_value) } /* H5B2_close() */ /*------------------------------------------------------------------------- * Function: H5B2_delete * * Purpose: Delete an entire B-tree from a file. * * The 'OP' routine is called for each record and the * OP_DATA pointer, to allow caller to perform an operation as * each record is removed from the B-tree. * * If 'OP' is NULL, the records are just removed in the process * of deleting the B-tree. * * Note: The records are _not_ guaranteed to be visited in order. * * Return: Non-negative on success, negative on failure. * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Mar 9 2005 * *------------------------------------------------------------------------- */ herr_t H5B2_delete(H5F_t *f, hid_t dxpl_id, haddr_t addr, void *ctx_udata, H5B2_remove_t op, void *op_data) { H5B2_hdr_t *hdr = NULL; /* Pointer to the B-tree header */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5B2_delete, FAIL) /* Check arguments. */ HDassert(f); HDassert(H5F_addr_defined(addr)); /* Lock the v2 B-tree header into memory */ #ifdef QAK HDfprintf(stderr, "%s: addr = %a\n", FUNC, addr); #endif /* QAK */ if(NULL == (hdr = (H5B2_hdr_t *)H5AC_protect(f, dxpl_id, H5AC_BT2_HDR, addr, NULL, ctx_udata, H5AC_WRITE))) HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to protect v2 B-tree header") /* Remember the callback & context for later */ hdr->remove_op = op; hdr->remove_op_data = op_data; /* Check for files using shared v2 B-tree header */ if(hdr->file_rc) hdr->pending_delete = TRUE; else { /* Set the shared v2 B-tree header's file context for this operation */ hdr->f = f; /* Delete v2 B-tree now, starting with header (unprotects header) */ if(H5B2_hdr_delete(hdr, dxpl_id) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTDELETE, FAIL, "unable to delete v2 B-tree") hdr = NULL; } /* end if */ done: /* Unprotect the header, if an error occurred */ if(hdr && H5AC_unprotect(f, dxpl_id, H5AC_BT2_HDR, addr, hdr, H5AC__NO_FLAGS_SET) < 0) HDONE_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release v2 B-tree header") FUNC_LEAVE_NOAPI(ret_value) } /* H5B2_delete() */