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

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Diffstat (limited to 'configure')

-rwxr-xr-x

1 files changed, 3 insertions, 2 deletions

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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 COPYING file, which can be found at the root of the source code * * distribution tree, or in https://www.hdfgroup.org/licenses. * * If you do not have access to either file, you may request a copy from * * help@hdfgroup.org. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /*------------------------------------------------------------------------- * * Created: H5Gnode.c * Jun 26 1997 * Robb Matzke * * Purpose: Functions for handling symbol table nodes. A * symbol table node is a small collection of symbol * table entries. A B-tree usually points to the * symbol table nodes for any given symbol table. * *------------------------------------------------------------------------- */ /****************/ /* Module Setup */ /****************/ #include "H5Gmodule.h" /* This source code file is part of the H5G module */ /***********/ /* Headers */ /***********/ #include "H5private.h" /* Generic Functions */ #include "H5ACprivate.h" /* Metadata cache */ #include "H5Eprivate.h" /* Error handling */ #include "H5Fprivate.h" /* File access */ #include "H5FLprivate.h" /* Free Lists */ #include "H5Gpkg.h" /* Groups */ #include "H5HLprivate.h" /* Local Heaps */ #include "H5MFprivate.h" /* File memory management */ #include "H5MMprivate.h" /* Memory management */ #include "H5Ppublic.h" /* Property Lists */ /****************/ /* Local Macros */ /****************/ /******************/ /* Local Typedefs */ /******************/ /* * Each key field of the B-link tree that points to symbol table * nodes consists of this structure... */ typedef struct H5G_node_key_t { size_t offset; /*offset into heap for name */ } H5G_node_key_t; /********************/ /* Package Typedefs */ /********************/ /********************/ /* Local Prototypes */ /********************/ /* B-tree callbacks */ static H5UC_t * H5G__node_get_shared(const H5F_t *f, const void *_udata); static herr_t H5G__node_create(H5F_t *f, H5B_ins_t op, void *_lt_key, void *_udata, void *_rt_key, haddr_t *addr_p /*out*/); static int H5G__node_cmp2(void *_lt_key, void *_udata, void *_rt_key); static int H5G__node_cmp3(void *_lt_key, void *_udata, void *_rt_key); static herr_t H5G__node_found(H5F_t *f, haddr_t addr, const void *_lt_key, hbool_t *found, void *_udata); static H5B_ins_t H5G__node_insert(H5F_t *f, haddr_t addr, void *_lt_key, hbool_t *lt_key_changed, void *_md_key, void *_udata, void *_rt_key, hbool_t *rt_key_changed, haddr_t *new_node_p /*out*/); static H5B_ins_t H5G__node_remove(H5F_t *f, haddr_t addr, void *lt_key, hbool_t *lt_key_changed, void *udata, void *rt_key, hbool_t *rt_key_changed); static herr_t H5G__node_decode_key(const H5B_shared_t *shared, const uint8_t *raw, void *_key); static herr_t H5G__node_encode_key(const H5B_shared_t *shared, uint8_t *raw, const void *_key); static herr_t H5G__node_debug_key(FILE *stream, int indent, int fwidth, const void *key, const void *udata); /*********************/ /* Package Variables */ /*********************/ /* H5G inherits B-tree like properties from H5B */ H5B_class_t H5B_SNODE[1] = {{ H5B_SNODE_ID, /*id */ sizeof(H5G_node_key_t), /*sizeof_nkey */ H5G__node_get_shared, /*get_shared */ H5G__node_create, /*new */ H5G__node_cmp2, /*cmp2 */ H5G__node_cmp3, /*cmp3 */ H5G__node_found, /*found */ H5G__node_insert, /*insert */ TRUE, /*follow min branch? */ TRUE, /*follow max branch? */ H5B_RIGHT, /*critical key */ H5G__node_remove, /*remove */ H5G__node_decode_key, /*decode */ H5G__node_encode_key, /*encode */ H5G__node_debug_key /*debug */ }}; /* Declare a free list to manage the H5G_node_t struct */ H5FL_DEFINE(H5G_node_t); /* Declare a free list to manage sequences of H5G_entry_t's */ H5FL_SEQ_DEFINE(H5G_entry_t); /*****************************/ /* Library Private Variables */ /*****************************/ /*******************/ /* Local Variables */ /*******************/ /*------------------------------------------------------------------------- * Function: H5G__node_get_shared * * Purpose: Returns the shared B-tree info for the specified UDATA. * * Return: Success: Pointer to the raw B-tree page for this file's groups * * Failure: Can't fail * * Programmer: Robb Matzke * Wednesday, October 8, 1997 * *------------------------------------------------------------------------- */ static H5UC_t * H5G__node_get_shared(const H5F_t *f, const void H5_ATTR_UNUSED *_udata) { FUNC_ENTER_STATIC_NOERR HDassert(f); /* Return the pointer to the ref-count object */ FUNC_LEAVE_NOAPI(H5F_GRP_BTREE_SHARED(f)) } /* end H5G__node_get_shared() */ /*------------------------------------------------------------------------- * Function: H5G__node_decode_key * * Purpose: Decodes a raw key into a native key. * * Return: Non-negative on success/Negative on failure * * Programmer: Robb Matzke * Jul 8 1997 * *------------------------------------------------------------------------- */ static herr_t H5G__node_decode_key(const H5B_shared_t *shared, const uint8_t *raw, void *_key) { H5G_node_key_t *key = (H5G_node_key_t *)_key; FUNC_ENTER_STATIC_NOERR HDassert(shared); HDassert(raw); HDassert(key); H5F_DECODE_LENGTH_LEN(raw, key->offset, shared->sizeof_len); FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5G__node_decode_key() */ /*------------------------------------------------------------------------- * Function: H5G__node_encode_key * * Purpose: Encodes a native key into a raw key. * * Return: Non-negative on success/Negative on failure * * Programmer: Robb Matzke * Jul 8 1997 * *------------------------------------------------------------------------- */ static herr_t H5G__node_encode_key(const H5B_shared_t *shared, uint8_t *raw, const void *_key) { const H5G_node_key_t *key = (const H5G_node_key_t *)_key; FUNC_ENTER_STATIC_NOERR HDassert(shared); HDassert(raw); HDassert(key); H5F_ENCODE_LENGTH_LEN(raw, key->offset, shared->sizeof_len); FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5G__node_encode_key() */ /*------------------------------------------------------------------------- * Function: H5G__node_debug_key * * Purpose: Prints a key. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * Friday, February 28, 2003 * *------------------------------------------------------------------------- */ static herr_t H5G__node_debug_key(FILE *stream, int indent, int fwidth, const void *_key, const void *_udata) { const H5G_node_key_t * key = (const H5G_node_key_t *)_key; const H5G_bt_common_t *udata = (const H5G_bt_common_t *)_udata; FUNC_ENTER_STATIC_NOERR HDassert(key); HDfprintf(stream, "%*s%-*s %u\n", indent, "", fwidth, "Heap offset:", (unsigned)key->offset); if (udata->heap) { const char *s; HDfprintf(stream, "%*s%-*s ", indent, "", fwidth, "Name:"); if ((s = (const char *)H5HL_offset_into(udata->heap, key->offset)) != NULL) HDfprintf(stream, "%s\n", s); } /* end if */ else HDfprintf(stream, "%*s%-*s ", indent, "", fwidth, "Cannot get name; heap address not specified\n"); FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5G__node_debug_key() */ /*------------------------------------------------------------------------- * Function: H5G__node_free * * Purpose: Destroy a symbol table node in memory. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * Jan 15 2003 * *------------------------------------------------------------------------- */ herr_t H5G__node_free(H5G_node_t *sym) { FUNC_ENTER_PACKAGE_NOERR /* * Check arguments. */ HDassert(sym); /* Verify that node is clean */ HDassert(sym->cache_info.is_dirty == FALSE); if (sym->entry) sym->entry = H5FL_SEQ_FREE(H5G_entry_t, sym->entry); sym = H5FL_FREE(H5G_node_t, sym); FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5G__node_free() */ /*------------------------------------------------------------------------- * Function: H5G__node_create * * Purpose: Creates a new empty symbol table node. This function is * called by the B-tree insert function for an empty tree. It * is also called internally to split a symbol node with LT_KEY * and RT_KEY null pointers. * * Return: Success: Non-negative. The address of symbol table * node is returned through the ADDR_P argument. * * Failure: Negative * * Programmer: Robb Matzke * Jun 23 1997 * *------------------------------------------------------------------------- */ static herr_t H5G__node_create(H5F_t *f, H5B_ins_t H5_ATTR_UNUSED op, void *_lt_key, void H5_ATTR_UNUSED *_udata, void *_rt_key, haddr_t *addr_p /*out*/) { H5G_node_key_t *lt_key = (H5G_node_key_t *)_lt_key; H5G_node_key_t *rt_key = (H5G_node_key_t *)_rt_key; H5G_node_t * sym = NULL; herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_STATIC /* * Check arguments. */ HDassert(f); HDassert(H5B_INS_FIRST == op); if (NULL == (sym = H5FL_CALLOC(H5G_node_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed") sym->node_size = H5G_NODE_SIZE(f); if (HADDR_UNDEF == (*addr_p = H5MF_alloc(f, H5FD_MEM_BTREE, (hsize_t)sym->node_size))) HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "unable to allocate file space") if (NULL == (sym->entry = H5FL_SEQ_CALLOC(H5G_entry_t, (size_t)(2 * H5F_SYM_LEAF_K(f))))) HGOTO_ERROR(H5E_SYM, H5E_CANTALLOC, FAIL, "memory allocation failed") if (H5AC_insert_entry(f, H5AC_SNODE, *addr_p, sym, H5AC__NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "unable to cache symbol table leaf node") /* * The left and right symbols in an empty tree are both the * empty string stored at offset zero by the H5G functions. This * allows the comparison functions to work correctly without knowing * that there are no symbols. */ if (lt_key) lt_key->offset = 0; if (rt_key) rt_key->offset = 0; done: if (ret_value < 0) { if (sym != NULL) { if (sym->entry != NULL) sym->entry = H5FL_SEQ_FREE(H5G_entry_t, sym->entry); sym = H5FL_FREE(H5G_node_t, sym); } /* end if */ } /* end if */ FUNC_LEAVE_NOAPI(ret_value) } /* end H5G__node_create() */ /*------------------------------------------------------------------------- * Function: H5G__node_cmp2 * * Purpose: Compares two keys from a B-tree node (LT_KEY and RT_KEY). * The UDATA pointer supplies extra data not contained in the * keys (in this case, the heap address). * * Return: Success: negative if LT_KEY is less than RT_KEY. * * positive if LT_KEY is greater than RT_KEY. * * zero if LT_KEY and RT_KEY are equal. * * Failure: FAIL (same as LT_KEY<RT_KEY) * * Programmer: Robb Matzke * Jun 23 1997 * *------------------------------------------------------------------------- */ static herr_t H5G__node_cmp2(void *_lt_key, void *_udata, void *_rt_key) { H5G_bt_common_t *udata = (H5G_bt_common_t *)_udata; H5G_node_key_t * lt_key = (H5G_node_key_t *)_lt_key; H5G_node_key_t * rt_key = (H5G_node_key_t *)_rt_key; const char * s1, *s2; int ret_value = SUCCEED; /* Return value */ FUNC_ENTER_STATIC /* Sanity checks */ HDassert(udata && udata->heap); HDassert(lt_key); HDassert(rt_key); /* Get pointers to string names */ if ((s1 = (const char *)H5HL_offset_into(udata->heap, lt_key->offset)) == NULL) HGOTO_ERROR(H5E_SYM, H5E_CANTGET, FAIL, "unable to get key name") if ((s2 = (const char *)H5HL_offset_into(udata->heap, rt_key->offset)) == NULL) HGOTO_ERROR(H5E_SYM, H5E_CANTGET, FAIL, "unable to get key name") /* Set return value */ ret_value = HDstrcmp(s1, s2); done: FUNC_LEAVE_NOAPI(ret_value) } /* H5G__node_cmp2() */ /*------------------------------------------------------------------------- * Function: H5G__node_cmp3 * * Purpose: Compares two keys from a B-tree node (LT_KEY and RT_KEY) * against another key (not necessarily the same type) * pointed to by UDATA. * * Return: Success: negative if the UDATA key is less than * or equal to the LT_KEY * * positive if the UDATA key is greater * than the RT_KEY. * * zero if the UDATA key falls between * the LT_KEY (exclusive) and the * RT_KEY (inclusive). * * Failure: FAIL (same as UDATA < LT_KEY) * * Programmer: Robb Matzke * Jun 23 1997 * *------------------------------------------------------------------------- */ static herr_t H5G__node_cmp3(void *_lt_key, void *_udata, void *_rt_key) { H5G_bt_common_t *udata = (H5G_bt_common_t *)_udata; H5G_node_key_t * lt_key = (H5G_node_key_t *)_lt_key; H5G_node_key_t * rt_key = (H5G_node_key_t *)_rt_key; const char * s; herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_STATIC /* Sanity checks */ HDassert(udata && udata->heap); HDassert(lt_key); HDassert(rt_key); /* left side */ if ((s = (const char *)H5HL_offset_into(udata->heap, lt_key->offset)) == NULL) HGOTO_ERROR(H5E_SYM, H5E_CANTGET, FAIL, "unable to get key name") if (HDstrcmp(udata->name, s) <= 0) ret_value = (-1); else { /* right side */ if ((s = (const char *)H5HL_offset_into(udata->heap, rt_key->offset)) == NULL) HGOTO_ERROR(H5E_SYM, H5E_CANTGET, FAIL, "unable to get key name") if (HDstrcmp(udata->name, s) > 0) ret_value = 1; } /* end else */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5G__node_cmp3() */ /*------------------------------------------------------------------------- * Function: H5G__node_found * * Purpose: The B-tree search engine has found the symbol table node * which contains the requested symbol if the symbol exists. * This function should examine that node for the symbol and * return information about the symbol through the UDATA * structure which contains the symbol name on function * entry. * * If the operation flag in UDATA is H5G_OPER_FIND, then * the entry is copied from the symbol table to the UDATA * entry field. Otherwise the entry is copied from the * UDATA entry field to the symbol table. * * Return: Success: Non-negative (TRUE/FALSE) if found and data * returned through the UDATA pointer, if *FOUND is true. * Failure: Negative if not found. * * Programmer: Robb Matzke * Jun 23 1997 * *------------------------------------------------------------------------- */ static herr_t H5G__node_found(H5F_t *f, haddr_t addr, const void H5_ATTR_UNUSED *_lt_key, hbool_t *found, void *_udata) { H5G_bt_lkp_t *udata = (H5G_bt_lkp_t *)_udata; H5G_node_t * sn = NULL; unsigned lt = 0, idx = 0, rt; int cmp = 1; const char * s; herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_STATIC /* * Check arguments. */ HDassert(f); HDassert(H5F_addr_defined(addr)); HDassert(found); HDassert(udata && udata->common.heap); /* * Load the symbol table node for exclusive access. */ if (NULL == (sn = (H5G_node_t *)H5AC_protect(f, H5AC_SNODE, addr, f, H5AC__READ_ONLY_FLAG))) HGOTO_ERROR(H5E_SYM, H5E_CANTLOAD, FAIL, "unable to protect symbol table node") /* * Binary search. */ rt = sn->nsyms; while (lt < rt && cmp) { idx = (lt + rt) / 2; if ((s = (const char *)H5HL_offset_into(udata->common.heap, sn->entry[idx].name_off)) == NULL) HGOTO_ERROR(H5E_SYM, H5E_CANTGET, FAIL, "unable to get symbol table name") cmp = HDstrcmp(udata->common.name, s); if (cmp < 0) rt = idx; else lt = idx + 1; } /* end while */ if (cmp) *found = FALSE; else { /* Set the 'found it' flag */ *found = TRUE; /* Call user's callback operator */ if ((udata->op)(&sn->entry[idx], udata->op_data) < 0) HGOTO_ERROR(H5E_SYM, H5E_BADITER, FAIL, "iterator callback failed") } /* end else */ done: if (sn && H5AC_unprotect(f, H5AC_SNODE, addr, sn, H5AC__NO_FLAGS_SET) < 0) HDONE_ERROR(H5E_SYM, H5E_PROTECT, FAIL, "unable to release symbol table node") FUNC_LEAVE_NOAPI(ret_value) } /* end H5G__node_found() */ /*------------------------------------------------------------------------- * Function: H5G__node_insert * * Purpose: The B-tree insertion engine has found the symbol table node * which should receive the new symbol/address pair. This * function adds it to that node unless it already existed. * * If the node has no room for the symbol then the node is * split into two nodes. The original node contains the * low values and the new node contains the high values. * The new symbol table entry is added to either node as * appropriate. When a split occurs, this function will * write the maximum key of the low node to the MID buffer * and return the address of the new node. * * If the new key is larger than RIGHT then update RIGHT * with the new key. * * Return: Success: An insertion command for the caller, one of * the H5B_INS_* constants. The address of the * new node, if any, is returned through the * NEW_NODE_P argument. NEW_NODE_P might not be * initialized if the return value is H5B_INS_NOOP. * * Failure: H5B_INS_ERROR, NEW_NODE_P might not be initialized. * * Programmer: Robb Matzke * Jun 24 1997 * *------------------------------------------------------------------------- */ static H5B_ins_t H5G__node_insert(H5F_t *f, haddr_t addr, void H5_ATTR_UNUSED *_lt_key, hbool_t H5_ATTR_UNUSED *lt_key_changed, void *_md_key, void *_udata, void *_rt_key, hbool_t *rt_key_changed, haddr_t *new_node_p) { H5G_node_key_t *md_key = (H5G_node_key_t *)_md_key; H5G_node_key_t *rt_key = (H5G_node_key_t *)_rt_key; H5G_bt_ins_t * udata = (H5G_bt_ins_t *)_udata; H5G_node_t * sn = NULL, *snrt = NULL; unsigned sn_flags = H5AC__NO_FLAGS_SET, snrt_flags = H5AC__NO_FLAGS_SET; const char * s; unsigned lt = 0, rt; /* Binary search cntrs */ int cmp = 1, idx = -1; H5G_node_t * insert_into = NULL; /*node that gets new entry*/ H5G_entry_t ent; /* Entry to insert in node */ H5B_ins_t ret_value = H5B_INS_ERROR; FUNC_ENTER_STATIC /* * Check arguments. */ HDassert(f); HDassert(H5F_addr_defined(addr)); HDassert(md_key); HDassert(rt_key); HDassert(udata && udata->common.heap); HDassert(new_node_p); /* * Load the symbol node. */ if (NULL == (sn = (H5G_node_t *)H5AC_protect(f, H5AC_SNODE, addr, f, H5AC__NO_FLAGS_SET))) HGOTO_ERROR(H5E_SYM, H5E_CANTLOAD, H5B_INS_ERROR, "unable to protect symbol table node") /* * Where does the new symbol get inserted? We use a binary search. */ rt = sn->nsyms; while (lt < rt) { idx = (int)((lt + rt) / 2); if ((s = (const char *)H5HL_offset_into(udata->common.heap, sn->entry[idx].name_off)) == NULL) HGOTO_ERROR(H5E_SYM, H5E_CANTGET, H5B_INS_ERROR, "unable to get symbol table name") /* Check if symbol is already present */ if (0 == (cmp = HDstrcmp(udata->common.name, s))) HGOTO_ERROR(H5E_SYM, H5E_CANTINSERT, H5B_INS_ERROR, "symbol is already present in symbol table") if (cmp < 0) rt = (unsigned)idx; else lt = (unsigned)(idx + 1); } /* end while */ idx += cmp > 0 ? 1 : 0; /* Convert link information & name to symbol table entry */ if (H5G__ent_convert(f, udata->common.heap, udata->common.name, udata->lnk, udata->obj_type, udata->crt_info, &ent) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTCONVERT, H5B_INS_ERROR, "unable to convert link") /* Determine where to place entry in node */ if (sn->nsyms >= 2 * H5F_SYM_LEAF_K(f)) { /* * The node is full. Split it into a left and right * node and return the address of the new right node (the * left node is at the same address as the original node). */ ret_value = H5B_INS_RIGHT; /* The right node */ if (H5G__node_create(f, H5B_INS_FIRST, NULL, NULL, NULL, new_node_p /*out*/) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, H5B_INS_ERROR, "unable to split symbol table node") if (NULL == (snrt = (H5G_node_t *)H5AC_protect(f, H5AC_SNODE, *new_node_p, f, H5AC__NO_FLAGS_SET))) HGOTO_ERROR(H5E_SYM, H5E_CANTLOAD, H5B_INS_ERROR, "unable to split symbol table node") H5MM_memcpy(snrt->entry, sn->entry + H5F_SYM_LEAF_K(f), H5F_SYM_LEAF_K(f) * sizeof(H5G_entry_t)); snrt->nsyms = H5F_SYM_LEAF_K(f); snrt_flags |= H5AC__DIRTIED_FLAG; /* The left node */ HDmemset(sn->entry + H5F_SYM_LEAF_K(f), 0, H5F_SYM_LEAF_K(f) * sizeof(H5G_entry_t)); sn->nsyms = H5F_SYM_LEAF_K(f); sn_flags |= H5AC__DIRTIED_FLAG; /* The middle key */ md_key->offset = sn->entry[sn->nsyms - 1].name_off; /* Where to insert the new entry? */ if (idx <= (int)H5F_SYM_LEAF_K(f)) { insert_into = sn; if (idx == (int)H5F_SYM_LEAF_K(f)) md_key->offset = ent.name_off; } /* end if */ else { idx -= (int)H5F_SYM_LEAF_K(f); insert_into = snrt; if (idx == (int)H5F_SYM_LEAF_K(f)) { rt_key->offset = ent.name_off; *rt_key_changed = TRUE; } /* end if */ } /* end else */ } /* end if */ else { /* Where to insert the new entry? */ ret_value = H5B_INS_NOOP; sn_flags |= H5AC__DIRTIED_FLAG; insert_into = sn; if (idx == (int)sn->nsyms) { rt_key->offset = ent.name_off; *rt_key_changed = TRUE; } /* end if */ } /* end else */ /* Move entries down to make room for new entry */ HDassert(idx >= 0); HDmemmove(insert_into->entry + idx + 1, insert_into->entry + idx, (insert_into->nsyms - (unsigned)idx) * sizeof(H5G_entry_t)); /* Copy new entry into table */ H5G__ent_copy(&(insert_into->entry[idx]), &ent, H5_COPY_SHALLOW); /* Increment # of symbols in table */ insert_into->nsyms += 1; done: if (snrt && H5AC_unprotect(f, H5AC_SNODE, *new_node_p, snrt, snrt_flags) < 0) HDONE_ERROR(H5E_SYM, H5E_PROTECT, H5B_INS_ERROR, "unable to release symbol table node") if (sn && H5AC_unprotect(f, H5AC_SNODE, addr, sn, sn_flags) < 0) HDONE_ERROR(H5E_SYM, H5E_PROTECT, H5B_INS_ERROR, "unable to release symbol table node") FUNC_LEAVE_NOAPI(ret_value) } /* end H5G__node_insert() */ /*------------------------------------------------------------------------- * Function: H5G__node_remove * * Purpose: The B-tree removal engine has found the symbol table node * which should contain the name which is being removed. This * function removes the name from the symbol table and * decrements the link count on the object to which the name * points. * * If the udata->name parameter is set to NULL, then remove * all entries in this symbol table node. This only occurs * during the deletion of the entire group, so don't bother * freeing individual name entries in the local heap, the group's * symbol table removal code will just free the entire local * heap eventually. Do reduce the link counts for each object * however. * * Return: Success: If all names are removed from the symbol * table node then H5B_INS_REMOVE is returned; * otherwise H5B_INS_NOOP is returned. * * Failure: H5B_INS_ERROR * * Programmer: Robb Matzke * Thursday, September 24, 1998 * *------------------------------------------------------------------------- */ static H5B_ins_t H5G__node_remove(H5F_t *f, haddr_t addr, void H5_ATTR_NDEBUG_UNUSED *_lt_key /*in,out*/, hbool_t H5_ATTR_UNUSED *lt_key_changed /*out*/, void *_udata /*in,out*/, void *_rt_key /*in,out*/, hbool_t *rt_key_changed /*out*/) { H5G_node_key_t *rt_key = (H5G_node_key_t *)_rt_key; H5G_bt_rm_t * udata = (H5G_bt_rm_t *)_udata; H5G_node_t * sn = NULL; unsigned sn_flags = H5AC__NO_FLAGS_SET; unsigned lt = 0, rt, idx = 0; int cmp = 1; H5B_ins_t ret_value = H5B_INS_ERROR; FUNC_ENTER_STATIC /* Check arguments */ HDassert(f); HDassert(H5F_addr_defined(addr)); HDassert((H5G_node_key_t *)_lt_key); HDassert(rt_key); HDassert(udata && udata->common.heap); /* Load the symbol table */ if (NULL == (sn = (H5G_node_t *)H5AC_protect(f, H5AC_SNODE, addr, f, H5AC__NO_FLAGS_SET))) HGOTO_ERROR(H5E_SYM, H5E_CANTLOAD, H5B_INS_ERROR, "unable to protect symbol table node") /* "Normal" removal of a single entry from the symbol table node */ if (udata->common.name != NULL) { H5O_link_t lnk; /* Constructed link for replacement */ size_t link_name_len; /* Length of string in local heap */ /* Find the name with a binary search */ rt = sn->nsyms; while (lt < rt && cmp) { const char *s; /* Pointer to string in local heap */ idx = (lt + rt) / 2; if ((s = (const char *)H5HL_offset_into(udata->common.heap, sn->entry[idx].name_off)) == NULL) HGOTO_ERROR(H5E_SYM, H5E_CANTGET, H5B_INS_ERROR, "unable to get symbol table name") cmp = HDstrcmp(udata->common.name, s); if (cmp < 0) rt = idx; else lt = idx + 1; } /* end while */ if (cmp) HGOTO_ERROR(H5E_SYM, H5E_NOTFOUND, H5B_INS_ERROR, "name not found") /* Get a pointer to the name of the link */ if (NULL == (lnk.name = (char *)H5HL_offset_into(udata->common.heap, sn->entry[idx].name_off))) HGOTO_ERROR(H5E_SYM, H5E_CANTGET, H5B_INS_ERROR, "unable to get link name") link_name_len = HDstrlen(lnk.name) + 1; /* Set up rest of link structure */ lnk.corder_valid = FALSE; lnk.corder = 0; lnk.cset = H5T_CSET_ASCII; if (sn->entry[idx].type == H5G_CACHED_SLINK) { lnk.type = H5L_TYPE_SOFT; if (NULL == (lnk.u.soft.name = (char *)H5HL_offset_into(udata->common.heap, sn->entry[idx].cache.slink.lval_offset))) HGOTO_ERROR(H5E_SYM, H5E_CANTGET, H5B_INS_ERROR, "unable to get link name") } /* end if */ else { lnk.type = H5L_TYPE_HARD; HDassert(H5F_addr_defined(sn->entry[idx].header)); lnk.u.hard.addr = sn->entry[idx].header; } /* end else */ /* Replace any object names */ if (H5G__link_name_replace(f, udata->grp_full_path_r, &lnk) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTGET, H5B_INS_ERROR, "unable to get object type") /* Decrement the ref. count for hard links */ if (lnk.type == H5L_TYPE_HARD) { H5O_loc_t tmp_oloc; /* Temporary object location */ /* Build temporary object location */ tmp_oloc.file = f; tmp_oloc.addr = lnk.u.hard.addr; if (H5O_link(&tmp_oloc, -1) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, H5B_INS_ERROR, "unable to decrement object link count") } /* end if */ else { /* Remove the soft link's value from the local heap */ if (lnk.u.soft.name) { size_t soft_link_len; /* Length of string in local heap */ soft_link_len = HDstrlen(lnk.u.soft.name) + 1; if (H5HL_remove(f, udata->common.heap, sn->entry[idx].cache.slink.lval_offset, soft_link_len) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTDELETE, H5B_INS_ERROR, "unable to remove soft link from local heap") } /* end if */ } /* end else */ /* Remove the link's name from the local heap */ if (H5HL_remove(f, udata->common.heap, sn->entry[idx].name_off, link_name_len) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTDELETE, H5B_INS_ERROR, "unable to remove link name from local heap") /* Remove the entry from the symbol table node */ if (1 == sn->nsyms) { /* * We are about to remove the only symbol in this node. Free this * node and indicate that the pointer to this node in the B-tree * should be removed also. */ HDassert(0 == idx); sn->nsyms = 0; sn_flags |= H5AC__DIRTIED_FLAG | H5AC__DELETED_FLAG | H5AC__FREE_FILE_SPACE_FLAG; ret_value = H5B_INS_REMOVE; } else if (0 == idx) { /* * We are about to remove the left-most entry from the symbol table * node but there are other entries to the right. No key values * change. */ sn->nsyms -= 1; sn_flags |= H5AC__DIRTIED_FLAG; HDmemmove(sn->entry + idx, sn->entry + idx + 1, (sn->nsyms - idx) * sizeof(H5G_entry_t)); ret_value = H5B_INS_NOOP; } else if (idx + 1 == sn->nsyms) { /* * We are about to remove the right-most entry from the symbol table * node but there are other entries to the left. The right key * should be changed to reflect the new right-most entry. */ sn->nsyms -= 1; sn_flags |= H5AC__DIRTIED_FLAG; rt_key->offset = sn->entry[sn->nsyms - 1].name_off; *rt_key_changed = TRUE; ret_value = H5B_INS_NOOP; } else { /* * We are about to remove an entry from the middle of a symbol table * node. */ sn->nsyms -= 1; sn_flags |= H5AC__DIRTIED_FLAG; HDmemmove(sn->entry + idx, sn->entry + idx + 1, (sn->nsyms - idx) * sizeof(H5G_entry_t)); ret_value = H5B_INS_NOOP; } /* end else */ } /* end if */ /* Remove all entries from node, during B-tree deletion */ else { H5O_loc_t tmp_oloc; /* Temporary object location */ /* Build temporary object location */ tmp_oloc.file = f; /* Reduce the link count for all entries in this node */ for (idx = 0; idx < sn->nsyms; idx++) { if (!(H5G_CACHED_SLINK == sn->entry[idx].type)) { /* Decrement the reference count */ HDassert(H5F_addr_defined(sn->entry[idx].header)); tmp_oloc.addr = sn->entry[idx].header; if (H5O_link(&tmp_oloc, -1) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTDELETE, H5B_INS_ERROR, "unable to decrement object link count") } /* end if */ } /* end for */ /* * We are about to remove all the symbols in this node. Free this * node and indicate that the pointer to this node in the B-tree * should be removed also. */ sn->nsyms = 0; sn_flags |= H5AC__DIRTIED_FLAG | H5AC__DELETED_FLAG | H5AC__FREE_FILE_SPACE_FLAG; ret_value = H5B_INS_REMOVE; } /* end else */ done: if (sn && H5AC_unprotect(f, H5AC_SNODE, addr, sn, sn_flags) < 0) HDONE_ERROR(H5E_SYM, H5E_CANTUNPROTECT, H5B_INS_ERROR, "unable to release symbol table node") FUNC_LEAVE_NOAPI(ret_value) } /* end H5G__node_remove() */ /*------------------------------------------------------------------------- * Function: H5G__node_iterate * * Purpose: This function gets called during a group iterate operation. * * Return: Non-negative on success/Negative on failure * * Programmer: Robb Matzke * Jun 24 1997 * *------------------------------------------------------------------------- */ int H5G__node_iterate(H5F_t *f, const void H5_ATTR_UNUSED *_lt_key, haddr_t addr, const void H5_ATTR_UNUSED *_rt_key, void *_udata) { H5G_bt_it_it_t *udata = (H5G_bt_it_it_t *)_udata; H5G_node_t * sn = NULL; H5G_entry_t * ents; /* Pointer to entries in this node */ unsigned u; /* Local index variable */ int ret_value = H5_ITER_CONT; FUNC_ENTER_PACKAGE /* * Check arguments. */ HDassert(f); HDassert(H5F_addr_defined(addr)); HDassert(udata && udata->heap); /* Protect the symbol table node & local heap while we iterate over entries */ if (NULL == (sn = (H5G_node_t *)H5AC_protect(f, H5AC_SNODE, addr, f, H5AC__READ_ONLY_FLAG))) HGOTO_ERROR(H5E_SYM, H5E_CANTLOAD, H5_ITER_ERROR, "unable to load symbol table node") /* * Iterate over the symbol table node entries. */ for (u = 0, ents = sn->entry; u < sn->nsyms && ret_value == H5_ITER_CONT; u++) { if (udata->skip > 0) --udata->skip; else { H5O_link_t lnk; /* Link for entry */ const char *name; /* Pointer to link name in heap */ /* Get the pointer to the name of the link in the heap */ if ((name = (const char *)H5HL_offset_into(udata->heap, ents[u].name_off)) == NULL) HGOTO_ERROR(H5E_SYM, H5E_CANTGET, H5_ITER_ERROR, "unable to get symbol table node name") /* Convert the entry to a link */ if (H5G__ent_to_link(&lnk, udata->heap, &ents[u], name) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTCONVERT, H5_ITER_ERROR, "unable to convert symbol table entry to link") /* Make the callback */ ret_value = (udata->op)(&lnk, udata->op_data); /* Release memory for link object */ if (H5O_msg_reset(H5O_LINK_ID, &lnk) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTFREE, H5_ITER_ERROR, "unable to release link message") } /* end else */ /* Increment the number of entries passed through */ /* (whether we skipped them or not) */ if (udata->final_ent) (*udata->final_ent)++; } /* end for */ if (ret_value < 0) HERROR(H5E_SYM, H5E_CANTNEXT, "iteration operator failed"); done: /* Release resources */ if (sn && H5AC_unprotect(f, H5AC_SNODE, addr, sn, H5AC__NO_FLAGS_SET) < 0) HDONE_ERROR(H5E_SYM, H5E_PROTECT, H5_ITER_ERROR, "unable to release object header") FUNC_LEAVE_NOAPI(ret_value) } /* end H5G__node_iterate() */ /*------------------------------------------------------------------------- * Function: H5G__node_sumup * * Purpose: This function gets called during a group iterate operation * to return total number of members in the group. * * Return: Non-negative on success/Negative on failure * * Programmer: Raymond Lu * Nov 20, 2002 * *------------------------------------------------------------------------- */ int H5G__node_sumup(H5F_t *f, const void H5_ATTR_UNUSED *_lt_key, haddr_t addr, const void H5_ATTR_UNUSED *_rt_key, void *_udata) { hsize_t * num_objs = (hsize_t *)_udata; H5G_node_t *sn = NULL; int ret_value = H5_ITER_CONT; FUNC_ENTER_PACKAGE /* * Check arguments. */ HDassert(f); HDassert(H5F_addr_defined(addr)); HDassert(num_objs); /* Find the object node and add the number of symbol entries. */ if (NULL == (sn = (H5G_node_t *)H5AC_protect(f, H5AC_SNODE, addr, f, H5AC__READ_ONLY_FLAG))) HGOTO_ERROR(H5E_SYM, H5E_CANTLOAD, H5_ITER_ERROR, "unable to load symbol table node") *num_objs += sn->nsyms; done: if (sn && H5AC_unprotect(f, H5AC_SNODE, addr, sn, H5AC__NO_FLAGS_SET) < 0) HDONE_ERROR(H5E_SYM, H5E_PROTECT, H5_ITER_ERROR, "unable to release object header") FUNC_LEAVE_NOAPI(ret_value) } /* end H5G__node_sumup() */ /*------------------------------------------------------------------------- * Function: H5G__node_by_idx * * Purpose: This function gets called during a group iterate operation * to return object name by giving idx. * * Return: 0 if object isn't found in this node; 1 if object is found; * Negative on failure * * Programmer: Raymond Lu * Nov 20, 2002 * *------------------------------------------------------------------------- */ int H5G__node_by_idx(H5F_t *f, const void H5_ATTR_UNUSED *_lt_key, haddr_t addr, const void H5_ATTR_UNUSED *_rt_key, void *_udata) { H5G_bt_it_idx_common_t *udata = (H5G_bt_it_idx_common_t *)_udata; H5G_node_t * sn = NULL; int ret_value = H5_ITER_CONT; FUNC_ENTER_PACKAGE /* * Check arguments. */ HDassert(f); HDassert(H5F_addr_defined(addr)); HDassert(udata); /* Get a pointer to the symbol table node */ if (NULL == (sn = (H5G_node_t *)H5AC_protect(f, H5AC_SNODE, addr, f, H5AC__READ_ONLY_FLAG))) HGOTO_ERROR(H5E_SYM, H5E_CANTLOAD, H5_ITER_ERROR, "unable to load symbol table node"); /* Find the node, locate the object symbol table entry and retrieve the name */ if (udata->idx >= udata->num_objs && udata->idx < (udata->num_objs + sn->nsyms)) { hsize_t ent_idx; /* Entry index in this node */ /* Compute index of entry */ ent_idx = udata->idx - udata->num_objs; /* Call 'by index' callback */ HDassert(udata->op); if ((udata->op)(&sn->entry[ent_idx], udata) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTGET, H5B_INS_ERROR, "'by index' callback failed") /* Indicate that we found the entry we are interested in */ ret_value = H5_ITER_STOP; } /* end if */ else udata->num_objs += sn->nsyms; done: if (sn && H5AC_unprotect(f, H5AC_SNODE, addr, sn, H5AC__NO_FLAGS_SET) < 0) HDONE_ERROR(H5E_SYM, H5E_PROTECT, H5_ITER_ERROR, "unable to release object header") FUNC_LEAVE_NOAPI(ret_value) } /* end H5G__node_by_idx() */ /*------------------------------------------------------------------------- * Function: H5G__node_init * * Purpose: This function gets called during a file opening to initialize * global information about group B-tree nodes for file. * * Return: Non-negative on success * Negative on failure * * Programmer: Quincey Koziol * Jul 5, 2004 * *------------------------------------------------------------------------- */ herr_t H5G__node_init(H5F_t *f) { H5B_shared_t *shared; /* Shared B-tree node info */ size_t sizeof_rkey; /* Size of raw (disk) key */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE /* Check arguments. */ HDassert(f); /* Set the raw key size */ sizeof_rkey = H5F_SIZEOF_SIZE(f); /*name offset */ /* Allocate & initialize global info for the shared structure */ if (NULL == (shared = H5B_shared_new(f, H5B_SNODE, sizeof_rkey))) HGOTO_ERROR(H5E_BTREE, H5E_NOSPACE, FAIL, "memory allocation failed for shared B-tree info") /* Set up the "local" information for this file's groups */ /* <none> */ /* Make shared B-tree info reference counted */ if (H5F_SET_GRP_BTREE_SHARED(f, H5UC_create(shared, H5B_shared_free)) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "can't create ref-count wrapper for shared B-tree info") done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5G__node_init() */ /*------------------------------------------------------------------------- * Function: H5G_node_close * * Purpose: This function gets called during a file close to shutdown * global information about group B-tree nodes for file. * * Return: Non-negative on success * Negative on failure * * Programmer: Quincey Koziol * Jul 5, 2004 * * *------------------------------------------------------------------------- */ herr_t H5G_node_close(const H5F_t *f) { FUNC_ENTER_NOAPI_NOINIT_NOERR /* Check arguments. */ HDassert(f); /* Free the raw B-tree node buffer */ if (H5F_GRP_BTREE_SHARED(f)) H5UC_DEC(H5F_GRP_BTREE_SHARED(f)); FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5G_node_close */ /*------------------------------------------------------------------------- * Function: H5G__node_copy * * Purpose: This function gets called during a group iterate operation * to copy objects of this node into a new location. * * Return: 0(zero) on success/Negative on failure * * Programmer: Peter Cao * Sept 10, 2005 * *------------------------------------------------------------------------- */ int H5G__node_copy(H5F_t *f, const void H5_ATTR_UNUSED *_lt_key, haddr_t addr, const void H5_ATTR_UNUSED *_rt_key, void *_udata) { H5G_bt_it_cpy_t *udata = (H5G_bt_it_cpy_t *)_udata; const H5O_loc_t *src_oloc = udata->src_oloc; H5O_copy_t * cpy_info = udata->cpy_info; H5HL_t * heap = NULL; H5G_node_t * sn = NULL; unsigned int i; /* Local index variable */ int ret_value = H5_ITER_CONT; FUNC_ENTER_PACKAGE /* Check arguments. */ HDassert(f); HDassert(H5F_addr_defined(addr)); HDassert(udata); /* load the symbol table into memory from the source file */ if (NULL == (sn = (H5G_node_t *)H5AC_protect(f, H5AC_SNODE, addr, f, H5AC__READ_ONLY_FLAG))) HGOTO_ERROR(H5E_SYM, H5E_CANTLOAD, H5_ITER_ERROR, "unable to load symbol table node") /* get the base address of the heap */ if (NULL == (heap = H5HL_protect(f, udata->src_heap_addr, H5AC__READ_ONLY_FLAG))) HGOTO_ERROR(H5E_SYM, H5E_NOTFOUND, H5_ITER_ERROR, "unable to protect symbol name") /* copy object in this node one by one */ for (i = 0; i < sn->nsyms; i++) { H5G_entry_t *src_ent = &(sn->entry[i]); /* Convenience variable to refer to current source group entry */ H5O_link_t lnk; /* Link to insert */ const char * name; /* Name of source object */ H5G_entry_t tmp_src_ent; /* Temporary copy. Change will not affect the cache */ H5O_type_t obj_type = H5O_TYPE_UNKNOWN; /* Target object type */ H5G_copy_file_ud_t *cpy_udata; /* Copy file udata */ H5G_obj_create_t gcrt_info; /* Group creation info */ /* expand soft link */ if (H5G_CACHED_SLINK == src_ent->type && cpy_info->expand_soft_link) { haddr_t obj_addr; /* Address of object pointed to by soft link */ H5G_loc_t grp_loc; /* Group location holding soft link */ H5G_name_t grp_path; /* Path for group holding soft link */ char * link_name; /* Pointer to value of soft link */ /* Make a temporary copy, so that it will not change the info in the cache */ H5MM_memcpy(&tmp_src_ent, src_ent, sizeof(H5G_entry_t)); /* Set up group location for soft link to start in */ H5G_name_reset(&grp_path); grp_loc.path = &grp_path; grp_loc.oloc = (H5O_loc_t *)src_oloc; /* Get pointer to link value in local heap */ if ((link_name = (char *)H5HL_offset_into(heap, tmp_src_ent.cache.slink.lval_offset)) == NULL) HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, H5_ITER_ERROR, "unable to get link name") /* Check if the object pointed by the soft link exists in the source file */ if (H5G__loc_addr(&grp_loc, link_name, &obj_addr) >= 0) { tmp_src_ent.header = obj_addr; src_ent = &tmp_src_ent; } /* end if */ else H5E_clear_stack(NULL); /* discard any errors from a dangling soft link */ } /* if ((H5G_CACHED_SLINK == src_ent->type)... */ /* Check if object in source group is a hard link */ if (H5F_addr_defined(src_ent->header)) { H5O_loc_t new_dst_oloc; /* Copied object location in destination */ H5O_loc_t tmp_src_oloc; /* Temporary object location for source object */ /* Set up copied object location to fill in */ H5O_loc_reset(&new_dst_oloc); new_dst_oloc.file = udata->dst_file; /* Build temporary object location for source */ H5O_loc_reset(&tmp_src_oloc); tmp_src_oloc.file = f; tmp_src_oloc.addr = src_ent->header; /* Copy the shared object from source to destination */ if (H5O_copy_header_map(&tmp_src_oloc, &new_dst_oloc, cpy_info, TRUE, &obj_type, (void **)&cpy_udata) < 0) HGOTO_ERROR(H5E_OHDR, H5E_CANTCOPY, H5_ITER_ERROR, "unable to copy object") /* Set up object creation info for symbol table insertion. Only * case so far is for inserting old-style groups (for caching stab * info). */ if (obj_type == H5O_TYPE_GROUP) { gcrt_info.gcpl_id = H5P_DEFAULT; gcrt_info.cache_type = cpy_udata->cache_type; gcrt_info.cache = cpy_udata->cache; } /* end if */ /* Construct link information for eventual insertion */ lnk.type = H5L_TYPE_HARD; lnk.u.hard.addr = new_dst_oloc.addr; } /* ( H5F_addr_defined(src_ent->header)) */ else if (H5G_CACHED_SLINK == src_ent->type) { /* it is a soft link */ /* Set object type to unknown */ obj_type = H5O_TYPE_UNKNOWN; /* Construct link information for eventual insertion */ lnk.type = H5L_TYPE_SOFT; if ((lnk.u.soft.name = (char *)H5HL_offset_into(heap, src_ent->cache.slink.lval_offset)) == NULL) HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, H5_ITER_ERROR, "unable to get link name") } /* else if */ else HDassert(0 && "Unknown entry type"); /* Set up common link data */ lnk.cset = H5F_DEFAULT_CSET; /* XXX: Allow user to set this */ lnk.corder = 0; /* Creation order is not tracked for old-style links */ lnk.corder_valid = FALSE; /* Creation order is not valid */ /* lnk.name = name; */ /* This will be set in callback */ /* Determine name of source object */ if ((name = (const char *)H5HL_offset_into(heap, src_ent->name_off)) == NULL) HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, H5_ITER_ERROR, "unable to get source object name") /* Set copied metadata tag */ H5_BEGIN_TAG(H5AC__COPIED_TAG); /* Insert the new object in the destination file's group */ /* (Don't increment the link count - that's already done above for hard links) */ if (H5G__stab_insert_real(udata->dst_file, udata->dst_stab, name, &lnk, obj_type, (obj_type == H5O_TYPE_GROUP ? &gcrt_info : NULL)) < 0) HGOTO_ERROR_TAG(H5E_DATATYPE, H5E_CANTINIT, H5_ITER_ERROR, "unable to insert the name") /* Reset metadata tag */ H5_END_TAG } /* end of for (i=0; i<sn->nsyms; i++) */ done: if (heap && H5HL_unprotect(heap) < 0) HDONE_ERROR(H5E_SYM, H5E_PROTECT, H5_ITER_ERROR, "unable to unprotect symbol name") if (sn && H5AC_unprotect(f, H5AC_SNODE, addr, sn, H5AC__NO_FLAGS_SET) < 0) HDONE_ERROR(H5E_SYM, H5E_PROTECT, H5_ITER_ERROR, "unable to release object header") FUNC_LEAVE_NOAPI(ret_value) } /* end H5G__node_copy() */ /*------------------------------------------------------------------------- * Function: H5G__node_build_table * * Purpose: B-link tree callback for building table of links * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * Nov 19 2006 * *------------------------------------------------------------------------- */ int H5G__node_build_table(H5F_t *f, const void H5_ATTR_UNUSED *_lt_key, haddr_t addr, const void H5_ATTR_UNUSED *_rt_key, void *_udata) { H5G_bt_it_bt_t *udata = (H5G_bt_it_bt_t *)_udata; H5G_node_t * sn = NULL; /* Symbol table node */ unsigned u; /* Local index variable */ int ret_value = H5_ITER_CONT; FUNC_ENTER_PACKAGE /* * Check arguments. */ HDassert(f); HDassert(H5F_addr_defined(addr)); HDassert(udata && udata->heap); /* * Save information about the symbol table node since we can't lock it * because we're about to call an application function. */ if (NULL == (sn = (H5G_node_t *)H5AC_protect(f, H5AC_SNODE, addr, f, H5AC__READ_ONLY_FLAG))) HGOTO_ERROR(H5E_SYM, H5E_CANTLOAD, H5_ITER_ERROR, "unable to load symbol table node") /* Check if the link table needs to be extended */ if ((udata->ltable->nlinks + sn->nsyms) >= udata->alloc_nlinks) { size_t na = MAX((udata->ltable->nlinks + sn->nsyms), (udata->alloc_nlinks * 2)); /* Double # of links allocated */ H5O_link_t *x; /* Pointer to larger array of links */ /* Re-allocate the link table */ if (NULL == (x = (H5O_link_t *)H5MM_realloc(udata->ltable->lnks, sizeof(H5O_link_t) * na))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, H5_ITER_ERROR, "memory allocation failed") udata->ltable->lnks = x; } /* end if */ /* Iterate over the symbol table node entries, adding to link table */ for (u = 0; u < sn->nsyms; u++) { const char *name; /* Pointer to link name in heap */ size_t linkno; /* Link allocated */ /* Get pointer to link's name in the heap */ if ((name = (const char *)H5HL_offset_into(udata->heap, sn->entry[u].name_off)) == NULL) HGOTO_ERROR(H5E_SYM, H5E_CANTGET, H5_ITER_ERROR, "unable to get symbol table link name") /* Determine the link to operate on in the table */ linkno = udata->ltable->nlinks++; /* Convert the entry to a link */ if (H5G__ent_to_link(&udata->ltable->lnks[linkno], udata->heap, &sn->entry[u], name) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTCONVERT, H5_ITER_ERROR, "unable to convert symbol table entry to link") } /* end for */ done: /* Release the locked items */ if (sn && H5AC_unprotect(f, H5AC_SNODE, addr, sn, H5AC__NO_FLAGS_SET) < 0) HDONE_ERROR(H5E_SYM, H5E_PROTECT, H5_ITER_ERROR, "unable to release object header") FUNC_LEAVE_NOAPI(ret_value) } /* end H5G__node_build_table() */ /*------------------------------------------------------------------------- * Function: H5G__node_iterate_size * * Purpose: This function gets called by H5B_iterate_helper() * to gather storage info for SNODs. * * Return: Non-negative on success/Negative on failure * * Programmer: Vailin Choi * Jun 19 2007 * *------------------------------------------------------------------------- */ herr_t H5G__node_iterate_size(H5F_t *f, const void H5_ATTR_UNUSED *_lt_key, haddr_t H5_ATTR_UNUSED addr, const void H5_ATTR_UNUSED *_rt_key, void *_udata) { hsize_t *stab_size = (hsize_t *)_udata; /* User data */ FUNC_ENTER_PACKAGE_NOERR /* Check arguments */ HDassert(f); HDassert(stab_size); *stab_size += H5G_NODE_SIZE(f); FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5G__node_iterate_size() */ /*------------------------------------------------------------------------- * Function: H5G_node_debug * * Purpose: Prints debugging information about a symbol table node * or a B-tree node for a symbol table B-tree. * * Return: 0(zero) on success/Negative on failure * * Programmer: Robb Matzke * Aug 4 1997 * *------------------------------------------------------------------------- */ herr_t H5G_node_debug(H5F_t *f, haddr_t addr, FILE *stream, int indent, int fwidth, haddr_t heap_addr) { H5G_node_t *sn = NULL; H5HL_t * heap = NULL; unsigned u; /* Local index variable */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(FAIL) /* * Check arguments. */ HDassert(f); HDassert(H5F_addr_defined(addr)); HDassert(stream); HDassert(indent >= 0); HDassert(fwidth >= 0); /* Pin the heap down in memory */ if (heap_addr > 0 && H5F_addr_defined(heap_addr)) if (NULL == (heap = H5HL_protect(f, heap_addr, H5AC__READ_ONLY_FLAG))) HGOTO_ERROR(H5E_SYM, H5E_CANTLOAD, FAIL, "unable to protect symbol table heap") /* * If we couldn't load the symbol table node, then try loading the * B-tree node. */ if (NULL == (sn = (H5G_node_t *)H5AC_protect(f, H5AC_SNODE, addr, f, H5AC__READ_ONLY_FLAG))) { H5G_bt_common_t udata; /*data to pass through B-tree */ H5E_clear_stack(NULL); /* discard that error */ udata.heap = heap; if (H5B_debug(f, addr, stream, indent, fwidth, H5B_SNODE, &udata) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTLOAD, FAIL, "unable to debug B-tree node"); } /* end if */ else { HDfprintf(stream, "%*sSymbol Table Node...\n", indent, ""); HDfprintf(stream, "%*s%-*s %s\n", indent, "", fwidth, "Dirty:", sn->cache_info.is_dirty ? "Yes" : "No"); HDfprintf(stream, "%*s%-*s %u\n", indent, "", fwidth, "Size of Node (in bytes):", (unsigned)sn->node_size); HDfprintf(stream, "%*s%-*s %u of %u\n", indent, "", fwidth, "Number of Symbols:", sn->nsyms, (unsigned)(2 * H5F_SYM_LEAF_K(f))); indent += 3; fwidth = MAX(0, fwidth - 3); for (u = 0; u < sn->nsyms; u++) { HDfprintf(stream, "%*sSymbol %u:\n", indent - 3, "", u); if (heap) { const char *s = (const char *)H5HL_offset_into(heap, sn->entry[u].name_off); if (s) HDfprintf(stream, "%*s%-*s `%s'\n", indent, "", fwidth, "Name:", s); } /* end if */ else HDfprintf(stream, "%*s%-*s\n", indent, "", fwidth, "Warning: Invalid heap address given, name not displayed!"); H5G__ent_debug(sn->entry + u, stream, indent, fwidth, heap); } /* end for */ } /* end if */ done: if (sn && H5AC_unprotect(f, H5AC_SNODE, addr, sn, H5AC__NO_FLAGS_SET) < 0) HDONE_ERROR(H5E_SYM, H5E_PROTECT, FAIL, "unable to release symbol table node") if (heap && H5HL_unprotect(heap) < 0) HDONE_ERROR(H5E_SYM, H5E_PROTECT, FAIL, "unable to unprotect symbol table heap") FUNC_LEAVE_NOAPI(ret_value) } /* end H5G_node_debug() */


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