diff options
Diffstat (limited to 'src/H5Ocompare.c')
| -rw-r--r-- | src/H5Ocompare.c | 749 |
1 files changed, 749 insertions, 0 deletions
diff --git a/src/H5Ocompare.c b/src/H5Ocompare.c new file mode 100644 index 0000000..c45e689 --- /dev/null +++ b/src/H5Ocompare.c @@ -0,0 +1,749 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * 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: H5Ocompare.c + * Oct 12 2010 + * Neil Fortner <nfortne2@hdfgroup.org> + * + * Purpose: Object comparison routines. + * + *------------------------------------------------------------------------- + */ + +/****************/ +/* Module Setup */ +/****************/ + +#define H5O_PACKAGE /*suppress error about including H5Opkg */ + +/***********/ +/* Headers */ +/***********/ +#include "H5private.h" /* Generic Functions */ +#include "H5Eprivate.h" /* Error handling */ +#include "H5Iprivate.h" /* IDs */ +#include "H5MMprivate.h" /* Memory management */ +#include "H5Opkg.h" /* Object headers */ +#include "H5Pprivate.h" /* Property lists */ + + +/****************/ +/* Local Macros */ +/****************/ + + +/******************/ +/* Local Typedefs */ +/******************/ + + +/********************/ +/* Package Typedefs */ +/********************/ + + +/********************/ +/* Local Prototypes */ +/********************/ + +static herr_t H5O_compare_obj(const H5O_loc_t *oloc1, const H5O_loc_t *oloc2, + hid_t ocmppl_id); + +/*********************/ +/* Package Variables */ +/*********************/ + + +/*****************************/ +/* Library Private Variables */ +/*****************************/ + + +/*******************/ +/* Local Variables */ +/*******************/ + + + +/*------------------------------------------------------------------------- + * Function: H5Ocompare + * + * Purpose: fnord + * + * Usage: fnord + * + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Neil Fortner + * October 12, 2010 + * + *------------------------------------------------------------------------- + */ +htri_t +H5Ocompare(hid_t loc1_id, const char *name1, hid_t loc2_id, const char *name2, + hid_t ocmppl_id) +{ + H5G_loc_t base_loc1; /* Base location for object 1 */ + H5G_loc_t base_loc2; /* Base location for object 2 */ + H5G_loc_t loc1; /* Object location for object 1 */ + H5G_loc_t loc2; /* Object location for object 2 */ + + /* for opening the objects */ + H5G_name_t path1; /* Opened object 1 hier. path */ + H5G_name_t path2; /* Opened object 2 hier. path */ + H5O_loc_t oloc1; /* Opened object 1 object location */ + H5O_loc_t oloc2; /* Opened object 2 object location */ + hbool_t loc1_found = FALSE; /* Location at 'name1' found */ + hbool_t loc2_found = FALSE; /* Location at 'name2' found */ + hbool_t obj1_open = FALSE; /* Entry at 'name1' found */ + hbool_t obj2_open = FALSE; /* Entry at 'name2' found */ + + htri_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_API(H5Ocompare, FAIL) + + /* Check arguments */ + if(H5G_loc(loc1_id, &base_loc1) < 0) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "loc1_id not a location") + if(H5G_loc(loc2_id, &base_loc2) < 0) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "loc2_id not a location") + if(!name1 || !*name2) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no name specified for object 1") + if(!name2 || !*name2) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no name specified for object 2") + + /* Set up opened group locations to fill in */ + loc1.oloc = &oloc1; + loc1.path = &path1; + H5G_loc_reset(&loc1); + loc2.oloc = &oloc2; + loc2.path = &path2; + H5G_loc_reset(&loc2); + + /* Find the objects to compare */ + if(H5G_loc_find(&base_loc1, name1, &loc1/*out*/, H5P_DEFAULT, H5AC_dxpl_id) < 0) + HGOTO_ERROR(H5E_SYM, H5E_NOTFOUND, FAIL, "object 1 not found") + loc1_found = TRUE; + if(H5G_loc_find(&base_loc2, name2, &loc2/*out*/, H5P_DEFAULT, H5AC_dxpl_id) < 0) + HGOTO_ERROR(H5E_SYM, H5E_NOTFOUND, FAIL, "object 2 not found") + loc2_found = TRUE; + + /* Open the objects' object headers */ + if(H5O_open(&oloc1) < 0) + HGOTO_ERROR(H5E_OHDR, H5E_CANTOPENOBJ, FAIL, "unable to open object 1") + obj1_open = TRUE; + if(H5O_open(&oloc2) < 0) + HGOTO_ERROR(H5E_OHDR, H5E_CANTOPENOBJ, FAIL, "unable to open object 2") + obj2_open = TRUE; +#if 0 + /* Get correct property lists */ + if(H5P_DEFAULT == lcpl_id) { + if((lcpl_id = H5L_get_default_lcpl()) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTINIT, FAIL, "unable to get default lcpl") + } /* end if */ + else + if(TRUE != H5P_isa_class(lcpl_id, H5P_LINK_CREATE)) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not link creation property list") + + /* Get object copy property list */ + if(H5P_DEFAULT == ocpypl_id) + ocpypl_id = H5P_OBJECT_COPY_DEFAULT; + else + if(TRUE != H5P_isa_class(ocpypl_id, H5P_OBJECT_COPY)) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not object copy property list") +#endif + /* Do the actual copying of the object */ + if((ret_value = H5O_compare_obj(&oloc1, &oloc2, ocmppl_id)) < 0) + HGOTO_ERROR(H5E_OHDR, H5E_CANTCOMPARE, FAIL, "unable to compare object") + +done: + if(loc1_found && H5G_loc_free(&loc1) < 0) + HDONE_ERROR(H5E_SYM, H5E_CANTRELEASE, FAIL, "can't free location 1") + if(loc2_found && H5G_loc_free(&loc2) < 0) + HDONE_ERROR(H5E_SYM, H5E_CANTRELEASE, FAIL, "can't free location 2") + if(obj1_open) + H5O_close(&oloc1); + if(obj2_open) + H5O_close(&oloc2); + + FUNC_LEAVE_API(ret_value) +} /* end H5Ocompare() */ + + +/*------------------------------------------------------------------------- + * Function: H5O_compare_obj + * + * Purpose: fnord + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Neil Fortner + * Novermeber 23, 2010 + * + *------------------------------------------------------------------------- + */ +static htri_t +H5O_compare_obj(const H5O_loc_t *oloc1, const H5O_loc_t *oloc2, hid_t ocmppl_id) +{ + H5O_t *oh1 = NULL; /* Object header for object 1 */ + H5O_t *oh2 = NULL; /* Object header for object 2 */ + const H5O_obj_class_t *obj1_class = NULL; /* Type of object 1 */ + const H5O_obj_class_t *obj2_class = NULL; /* Type of object 2 */ + hid_t dxpl1_id = H5AC_dxpl_id; + hid_t dxpl2_id = -1; + H5P_genplist_t *dxpl = NULL; + haddr_t prev_tag1 = HADDR_UNDEF; + haddr_t prev_tag2 = HADDR_UNDEF; + htri_t ret_value = SUCCEED; + + FUNC_ENTER_NOAPI_NOINIT(H5O_compare_obj) + + HDassert(oloc1); + HDassert(oloc1->file); + HDassert(H5F_addr_defined(oloc1->addr)); + HDassert(oloc2); + HDassert(oloc2->file); + HDassert(H5F_addr_defined(oloc2->addr)); + + /* Copy dxpl1 to dxpl2 */ + if(NULL == (dxpl = (H5P_genplist_t *)H5I_object_verify(dxpl1_id, H5I_GENPROP_LST))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list") + if((dxpl2_id = H5P_copy_plist((H5P_genplist_t *)dxpl, FALSE)) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTCOPY, FAIL, "can't copy property list"); + + /* Set up metadata tagging */ + if(H5AC_tag(dxpl1_id, oloc1->addr, &prev_tag1) < 0) + HGOTO_ERROR(H5E_CACHE, H5E_CANTTAG, FAIL, "unable to apply metadata tag") + if(H5AC_tag(dxpl2_id, oloc2->addr, &prev_tag2) < 0) + HGOTO_ERROR(H5E_CACHE, H5E_CANTTAG, FAIL, "unable to apply metadata tag") + + /* Get object headers */ + /*FIXME fnord Set up tagging here? */ + if(NULL == (oh1 = H5O_protect(oloc1, dxpl1_id, H5AC_READ))) + HGOTO_ERROR(H5E_OHDR, H5E_CANTPROTECT, FAIL, "unable to load object header") + if(NULL == (oh2 = H5O_protect(oloc2, dxpl2_id, H5AC_READ))) + HGOTO_ERROR(H5E_OHDR, H5E_CANTPROTECT, FAIL, "unable to load object header") + + /* Get pointer to object class for objects */ + if(NULL == (obj1_class = H5O_obj_class_real(oh1))) + HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, FAIL, "unable to determine object type") + if(NULL == (obj2_class = H5O_obj_class_real(oh1))) + HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, FAIL, "unable to determine object type") + if(obj1_class->type != obj2_class->type) + HGOTO_DONE(TRUE) + + /* Do the comparison */ + HDassert(obj1_class->compare); + if((ret_value = obj1_class->compare(oloc1->file, oloc2->file, oh1, oh2, + oloc1->addr, oloc2->addr, dxpl1_id, dxpl2_id, NULL)) < 0) + HGOTO_ERROR(H5E_OHDR, H5E_CANTCOMPARE, FAIL, "unable to compare objects") + +done: + /* Release pointer to object headers and their derived objects */ + if(oh1 && H5O_unprotect(oloc1, dxpl1_id, oh1, H5AC__NO_FLAGS_SET) < 0) + HDONE_ERROR(H5E_OHDR, H5E_CANTUNPROTECT, FAIL, "unable to release object header") + if(oh2 && H5O_unprotect(oloc2, dxpl2_id, oh2, H5AC__NO_FLAGS_SET) < 0) + HDONE_ERROR(H5E_OHDR, H5E_CANTUNPROTECT, FAIL, "unable to release object header") + + if(H5AC_tag(dxpl1_id, prev_tag1, NULL) < 0) + HDONE_ERROR(H5E_CACHE, H5E_CANTTAG, FAIL, "unable to apply metadata tag") + if(H5AC_tag(dxpl2_id, prev_tag2, NULL) < 0) + HDONE_ERROR(H5E_CACHE, H5E_CANTTAG, FAIL, "unable to apply metadata tag") + + if(dxpl2_id >= 0 && H5I_dec_ref(dxpl2_id) < 0) + HGOTO_ERROR(H5E_OHDR, H5E_CANTDEC, FAIL, "can't decrement ID ref count") + + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5O_compare_obj() */ + +#if 0 + +/*------------------------------------------------------------------------- + * Function: H5O_copy_header_map + * + * Purpose: Copy header object from one location to another, detecting + * already mapped objects, etc. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Quincey Koziol + * November 1, 2005 + * + *------------------------------------------------------------------------- + */ +herr_t +H5O_copy_header_map(const H5O_loc_t *oloc_src, H5O_loc_t *oloc_dst /*out */, + hid_t dxpl_id, H5O_copy_t *cpy_info, hbool_t inc_depth, + H5O_type_t *obj_type, void **udata) +{ + H5O_addr_map_t *addr_map = NULL; /* Address mapping of object copied */ + H5_obj_t src_obj_pos; /* Position of source object */ + hbool_t inc_link; /* Whether to increment the link count for the object */ + herr_t ret_value = SUCCEED; + + FUNC_ENTER_NOAPI(H5O_copy_header_map, FAIL) + + /* Sanity check */ + HDassert(oloc_src); + HDassert(oloc_src->file); + HDassert(oloc_dst); + HDassert(oloc_dst->file); + HDassert(cpy_info); + + /* Create object "position" struct */ + H5F_GET_FILENO(oloc_src->file, src_obj_pos.fileno); + src_obj_pos.addr = oloc_src->addr; + + /* Search for the object in the skip list of copied objects */ + addr_map = (H5O_addr_map_t *)H5SL_search(cpy_info->map_list, + &src_obj_pos); + + /* Check if address is already in list of objects copied */ + if(addr_map == NULL) { + /* Copy object for the first time */ + + /* Check for incrementing the depth of copy */ + /* (Can't do this for all copies, since committed datatypes should always be copied) */ + if(inc_depth) + cpy_info->curr_depth++; + + /* Copy object referred to */ + if(H5O_copy_header_real(oloc_src, oloc_dst, dxpl_id, cpy_info, obj_type, + udata) < 0) + HGOTO_ERROR(H5E_OHDR, H5E_CANTCOPY, FAIL, "unable to copy object") + + /* Check for incrementing the depth of copy */ + if(inc_depth) + cpy_info->curr_depth--; + + /* When an object is copied for the first time, increment it's link */ + inc_link = TRUE; + + /* indicate that a new object is created */ + ret_value++; + } /* end if */ + else { + /* Object has already been copied, set its address in destination file */ + oloc_dst->addr = addr_map->dst_addr; + + /* Return saved obj_type and udata, if requested */ + if(obj_type) { + HDassert(udata); + *obj_type = addr_map->obj_class->type; + *udata = addr_map->udata; + } /* end if */ + + /* If the object is locked currently (because we are copying a group + * hierarchy and this is a link to a group higher in the hierarchy), + * increment it's deferred reference count instead of incrementing the + * reference count now. + */ + if(addr_map->is_locked) { + addr_map->inc_ref_count++; + inc_link = FALSE; + } /* end if */ + else + inc_link = TRUE; + } /* end else */ + + /* Increment destination object's link count, if allowed */ + if(inc_link) + if(H5O_link(oloc_dst, 1, dxpl_id) < 0) + HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, FAIL, "unable to increment object link count") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5O_copy_header_map() */ + + +/*-------------------------------------------------------------------------- + NAME + H5O_copy_free_addrmap_cb + PURPOSE + Internal routine to free address maps from the skip list for copying objects + USAGE + herr_t H5O_copy_free_addrmap_cb(item, key, op_data) + void *item; IN/OUT: Pointer to addr + void *key; IN/OUT: (unused) + void *op_data; IN: (unused) + RETURNS + Returns zero on success, negative on failure. + DESCRIPTION + Releases the memory for the address. + GLOBAL VARIABLES + COMMENTS, BUGS, ASSUMPTIONS + EXAMPLES + REVISION LOG +--------------------------------------------------------------------------*/ +static herr_t +H5O_copy_free_addrmap_cb(void *_item, void UNUSED *key, void UNUSED *op_data) +{ + H5O_addr_map_t *item = (H5O_addr_map_t *)_item; + + FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_copy_free_addrmap_cb) + + HDassert(item); + + /* Release user data for particular type of object */ + if(item->udata) { + HDassert(item->obj_class); + HDassert(item->obj_class->free_copy_file_udata); + (item->obj_class->free_copy_file_udata)(item->udata); + } /* end if */ + + /* Release the item */ + item = H5FL_FREE(H5O_addr_map_t, item); + + FUNC_LEAVE_NOAPI(0) +} /* H5O_copy_free_addrmap_cb() */ + + +/*------------------------------------------------------------------------- + * Function: H5O_copy_header + * + * Purpose: copy header object from one location to another. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Peter Cao + * May 30, 2005 + * + *------------------------------------------------------------------------- + */ +static herr_t +H5O_copy_header(const H5O_loc_t *oloc_src, H5O_loc_t *oloc_dst /*out */, + hid_t dxpl_id, unsigned cpy_option) +{ + H5O_copy_t cpy_info; /* Information for copying object */ + herr_t ret_value = SUCCEED; + + FUNC_ENTER_NOAPI_NOINIT(H5O_copy_header) + + HDassert(oloc_src); + HDassert(oloc_src->file); + HDassert(H5F_addr_defined(oloc_src->addr)); + HDassert(oloc_dst->file); + + /* Convert copy flags into copy struct */ + HDmemset(&cpy_info, 0, sizeof(H5O_copy_t)); + if((cpy_option & H5O_COPY_SHALLOW_HIERARCHY_FLAG) > 0) { + cpy_info.copy_shallow = TRUE; + cpy_info.max_depth = 1; + } /* end if */ + else + cpy_info.max_depth = -1; /* Current default is for full, recursive hier. copy */ + cpy_info.curr_depth = 0; + if((cpy_option & H5O_COPY_EXPAND_SOFT_LINK_FLAG) > 0) + cpy_info.expand_soft_link = TRUE; + if((cpy_option & H5O_COPY_EXPAND_EXT_LINK_FLAG) > 0) + cpy_info.expand_ext_link = TRUE; + if((cpy_option & H5O_COPY_EXPAND_REFERENCE_FLAG) > 0) + cpy_info.expand_ref = TRUE; + if((cpy_option & H5O_COPY_WITHOUT_ATTR_FLAG) > 0) + cpy_info.copy_without_attr = TRUE; + if((cpy_option & H5O_COPY_PRESERVE_NULL_FLAG) > 0) + cpy_info.preserve_null = TRUE; + + /* Create a skip list to keep track of which objects are copied */ + if((cpy_info.map_list = H5SL_create(H5SL_TYPE_OBJ)) == NULL) + HGOTO_ERROR(H5E_SLIST, H5E_CANTCREATE, FAIL, "cannot make skip list") + + /* copy the object from the source file to the destination file */ + if(H5O_copy_header_real(oloc_src, oloc_dst, dxpl_id, &cpy_info, NULL, NULL) + < 0) + HGOTO_ERROR(H5E_OHDR, H5E_CANTCOPY, FAIL, "unable to copy object") + +done: + if(cpy_info.map_list) + H5SL_destroy(cpy_info.map_list, H5O_copy_free_addrmap_cb, NULL); + + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5O_copy_header() */ + + +/*------------------------------------------------------------------------- + * Function: H5O_copy_obj + * + * Purpose: Copy an object to destination location + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Peter Cao + * June 4, 2005 + * + *------------------------------------------------------------------------- + */ +static herr_t +H5O_copy_obj(H5G_loc_t *src_loc, H5G_loc_t *dst_loc, const char *dst_name, + hid_t ocpypl_id, hid_t lcpl_id) +{ + H5P_genplist_t *ocpy_plist=NULL; /* Object copy property list created */ + hid_t dxpl_id=H5AC_dxpl_id; + H5G_name_t new_path; /* Copied object group hier. path */ + H5O_loc_t new_oloc; /* Copied object object location */ + H5G_loc_t new_loc; /* Group location of object copied */ + H5F_t *cached_dst_file; /* Cached destination file */ + hbool_t entry_inserted=FALSE; /* Flag to indicate that the new entry was inserted into a group */ + unsigned cpy_option = 0; /* Copy options */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_NOAPI(H5O_copy_obj, FAIL) + + HDassert(src_loc); + HDassert(src_loc->oloc->file); + HDassert(dst_loc); + HDassert(dst_loc->oloc->file); + HDassert(dst_name); + + /* Get the copy property list */ + if(NULL == (ocpy_plist = (H5P_genplist_t *)H5I_object(ocpypl_id))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list") + + /* Retrieve the copy parameters */ + if(H5P_get(ocpy_plist, H5O_CPY_OPTION_NAME, &cpy_option) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get object copy flag") + + /* Set up copied object location to fill in */ + new_loc.oloc = &new_oloc; + new_loc.path = &new_path; + H5G_loc_reset(&new_loc); + new_oloc.file = dst_loc->oloc->file; + + /* Make a copy of the destination file, in case the original is changed by + * H5O_copy_header. If and when oloc's point to the shared file struct, + * this will no longer be necessary, so this code can be removed. */ + cached_dst_file = dst_loc->oloc->file; + + /* Copy the object from the source file to the destination file */ + if(H5O_copy_header(src_loc->oloc, &new_oloc, dxpl_id, cpy_option) < 0) + HGOTO_ERROR(H5E_OHDR, H5E_CANTCOPY, FAIL, "unable to copy object") + + /* Patch dst_loc. Again, this can be removed once oloc's point to shared + * file structs. */ + dst_loc->oloc->file = cached_dst_file; + + /* Insert the new object in the destination file's group */ + if(H5L_link(dst_loc, dst_name, &new_loc, lcpl_id, H5P_DEFAULT, dxpl_id) < 0) + HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to insert link") + entry_inserted = TRUE; + +done: + /* Free the ID to name buffers */ + if(entry_inserted) + H5G_loc_free(&new_loc); + + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5O_copy_obj() */ + + +/*------------------------------------------------------------------------- + * Function: H5O_copy_obj_by_ref + * + * Purpose: Copy the object pointed by _src_ref. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Peter Cao + * Aug 7 2006 + * + *------------------------------------------------------------------------- + */ +static herr_t +H5O_copy_obj_by_ref(H5O_loc_t *src_oloc, hid_t dxpl_id, H5O_loc_t *dst_oloc, + H5G_loc_t *dst_root_loc, H5O_copy_t *cpy_info) +{ + herr_t ret_value = SUCCEED; + + FUNC_ENTER_NOAPI(H5O_copy_obj_by_ref, FAIL) + + HDassert(src_oloc); + HDassert(dst_oloc); + + /* Perform the copy, or look up existing copy */ + if((ret_value = H5O_copy_header_map(src_oloc, dst_oloc, dxpl_id, cpy_info, + FALSE, NULL, NULL)) < 0) + HGOTO_ERROR(H5E_OHDR, H5E_CANTCOPY, FAIL, "unable to copy object") + + /* Check if a new valid object is copied to the destination */ + if(H5F_addr_defined(dst_oloc->addr) && (ret_value > SUCCEED)) { + char tmp_obj_name[80]; + H5G_name_t new_path; + H5O_loc_t new_oloc; + H5G_loc_t new_loc; + + /* Set up group location for new object */ + new_loc.oloc = &new_oloc; + new_loc.path = &new_path; + H5G_loc_reset(&new_loc); + new_oloc.file = dst_oloc->file; + new_oloc.addr = dst_oloc->addr; + + /* Pick a default name for the new object */ + sprintf(tmp_obj_name, "~obj_pointed_by_%llu", (unsigned long long)dst_oloc->addr); + + /* Create a link to the newly copied object */ + /* Note: since H5O_copy_header_map actually copied the target object, it + * must exist either in cache or on disk, therefore it is is safe to not + * pass the obj_type and udata fields returned by H5O_copy_header_map. + * This could be changed in the future to slightly improve performance + * --NAF */ + if(H5L_link(dst_root_loc, tmp_obj_name, &new_loc, H5P_DEFAULT, H5P_DEFAULT, dxpl_id) < 0) + HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to insert link") + + H5G_loc_free(&new_loc); + } /* if (H5F_addr_defined(dst_oloc.addr)) */ + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5O_copy_obj_by_ref() */ + + +/*------------------------------------------------------------------------- + * Function: H5O_copy_expand_ref + * + * Purpose: Copy the object pointed by _src_ref. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Peter Cao + * Aug 7 2006 + * + *------------------------------------------------------------------------- + */ +herr_t +H5O_copy_expand_ref(H5F_t *file_src, void *_src_ref, hid_t dxpl_id, + H5F_t *file_dst, void *_dst_ref, size_t ref_count, H5R_type_t ref_type, + H5O_copy_t *cpy_info) +{ + H5O_loc_t dst_oloc; /* Copied object object location */ + H5O_loc_t src_oloc; /* Temporary object location for source object */ + H5G_loc_t dst_root_loc; /* The location of root group of the destination file */ + uint8_t *p; /* Pointer to OID to store */ + size_t i; /* Local index variable */ + herr_t ret_value = SUCCEED; + + FUNC_ENTER_NOAPI(H5O_copy_expand_ref, FAIL) + + /* Sanity checks */ + HDassert(file_src); + HDassert(_src_ref); + HDassert(file_dst); + HDassert(_dst_ref); + HDassert(ref_count); + HDassert(cpy_info); + + /* Initialize object locations */ + H5O_loc_reset(&src_oloc); + H5O_loc_reset(&dst_oloc); + src_oloc.file = file_src; + dst_oloc.file = file_dst; + + /* Set up the root group in the destination file */ + if(NULL == (dst_root_loc.oloc = H5G_oloc(H5G_rootof(file_dst)))) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "unable to get object location for root group") + if(NULL == (dst_root_loc.path = H5G_nameof(H5G_rootof(file_dst)))) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "unable to get path for root group") + + /* Copy object references */ + if(H5R_OBJECT == ref_type) { + hobj_ref_t *src_ref = (hobj_ref_t *)_src_ref; + hobj_ref_t *dst_ref = (hobj_ref_t *)_dst_ref; + + /* Making equivalent references in the destination file */ + for(i = 0; i < ref_count; i++) { + /* Set up for the object copy for the reference */ + p = (uint8_t *)(&src_ref[i]); + H5F_addr_decode(src_oloc.file, (const uint8_t **)&p, &(src_oloc.addr)); + dst_oloc.addr = HADDR_UNDEF; + + /* Attempt to copy object from source to destination file */ + if(src_oloc.addr != (haddr_t)0) { + if(H5O_copy_obj_by_ref(&src_oloc, dxpl_id, &dst_oloc, &dst_root_loc, cpy_info) < 0) + HGOTO_ERROR(H5E_OHDR, H5E_CANTCOPY, FAIL, "unable to copy object") + } /* end if */ + else + /* Set parameters so the reference is written as all 0's */ + HDmemset(&dst_oloc.addr, 0, sizeof(dst_oloc.addr)); + + /* Set the object reference info for the destination file */ + p = (uint8_t *)(&dst_ref[i]); + H5F_addr_encode(dst_oloc.file, &p, dst_oloc.addr); + } /* end for */ + } /* end if */ + /* Copy region references */ + else if(H5R_DATASET_REGION == ref_type) { + hdset_reg_ref_t *src_ref = (hdset_reg_ref_t *)_src_ref; + hdset_reg_ref_t *dst_ref = (hdset_reg_ref_t *)_dst_ref; + uint8_t *buf = NULL; /* Buffer to store serialized selection in */ + H5HG_t hobjid; /* Heap object ID */ + size_t buf_size; /* Length of object in heap */ + + /* Making equivalent references in the destination file */ + for(i = 0; i < ref_count; i++) { + /* Get the heap ID for the dataset region */ + p = (uint8_t *)(&src_ref[i]); + H5F_addr_decode(src_oloc.file, (const uint8_t **)&p, &(hobjid.addr)); + INT32DECODE(p, hobjid.idx); + + if(hobjid.addr != (haddr_t)0) { + /* Get the dataset region from the heap (allocate inside routine) */ + if((buf = (uint8_t *)H5HG_read(src_oloc.file, dxpl_id, &hobjid, NULL, &buf_size)) == NULL) + HGOTO_ERROR(H5E_REFERENCE, H5E_READERROR, FAIL, "Unable to read dataset region information") + + /* Get the object oid for the dataset */ + p = (uint8_t *)buf; + H5F_addr_decode(src_oloc.file, (const uint8_t **)&p, &(src_oloc.addr)); + dst_oloc.addr = HADDR_UNDEF; + + /* copy the object pointed by the ref to the destination */ + if(H5O_copy_obj_by_ref(&src_oloc, dxpl_id, &dst_oloc, &dst_root_loc, cpy_info) < 0) { + H5MM_xfree(buf); + HGOTO_ERROR(H5E_OHDR, H5E_CANTCOPY, FAIL, "unable to copy object") + } /* end if */ + + /* Serialize object ID */ + p = (uint8_t *)buf; + H5F_addr_encode(dst_oloc.file, &p, dst_oloc.addr); + + /* Save the serialized buffer to the destination */ + if(H5HG_insert(dst_oloc.file, dxpl_id, buf_size, buf, &hobjid) < 0) { + H5MM_xfree(buf); + HGOTO_ERROR(H5E_OHDR, H5E_CANTCOPY, FAIL, "Unable to write dataset region information") + } /* end if */ + } /* end if */ + else + /* Set parameters so the reference is written as all 0's */ + HDmemset(&hobjid, 0, sizeof(hobjid)); + + /* Set the dataset region reference info for the destination file */ + p = (uint8_t *)(&dst_ref[i]); + H5F_addr_encode(dst_oloc.file, &p, hobjid.addr); + INT32ENCODE(p, hobjid.idx); + + /* Free the buffer allocated in H5HG_read() */ + H5MM_xfree(buf); + } /* end for */ + } /* end if */ + else + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference type") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5O_copy_expand_ref() */ +#endif + |