diff options
Diffstat (limited to 'src/H5Ocopy.c')
| -rw-r--r-- | src/H5Ocopy.c | 592 |
1 files changed, 591 insertions, 1 deletions
diff --git a/src/H5Ocopy.c b/src/H5Ocopy.c index a26dde2..a312b5a 100644 --- a/src/H5Ocopy.c +++ b/src/H5Ocopy.c @@ -35,9 +35,10 @@ #include "H5private.h" /* Generic Functions */ #include "H5Eprivate.h" /* Error handling */ #include "H5FLprivate.h" /* Free lists */ -#include "H5HGprivate.h" /* Global Heaps */ #include "H5Iprivate.h" /* IDs */ +#include "H5HGprivate.h" /* Global Heaps */ #include "H5Lprivate.h" /* Links */ +#include "H5MFprivate.h" /* File memory management */ #include "H5MMprivate.h" /* Memory management */ #include "H5Opkg.h" /* Object headers */ #include "H5Pprivate.h" /* Property lists */ @@ -61,6 +62,11 @@ /* Local Prototypes */ /********************/ +static herr_t H5O_copy_free_addrmap_cb(void *item, void *key, void *op_data); +static herr_t H5O_copy_header_real(const H5O_loc_t *oloc_src, H5O_loc_t *oloc_dst /*out */, + hid_t dxpl_id, H5O_copy_t *cpy_info); +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); 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); static herr_t H5O_copy_obj_by_ref(H5O_loc_t *src_oloc, hid_t dxpl_id, @@ -258,6 +264,590 @@ done: /*------------------------------------------------------------------------- + * Function: H5O_copy_header_real + * + * Purpose: Copy header object from one location to another using + * pre-copy, copy, and post-copy callbacks for each message + * type. + * + * The source header object is compressed into a single chunk + * (since we know how big it is) and any continuation messages + * are converted into NULL messages. + * + * By default, NULL messages are not copied. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Peter Cao + * May 30, 2005 + * + *------------------------------------------------------------------------- + */ +static herr_t +H5O_copy_header_real(const H5O_loc_t *oloc_src, H5O_loc_t *oloc_dst /*out */, + hid_t dxpl_id, H5O_copy_t *cpy_info) +{ + H5O_addr_map_t *addr_map = NULL; /* Address mapping of object copied */ + H5O_t *oh_src = NULL; /* Object header for source object */ + H5O_t *oh_dst = NULL; /* Object header for destination object */ + unsigned mesgno = 0; + haddr_t addr_new = HADDR_UNDEF; + hbool_t *deleted = NULL; /* Array of flags indicating whether messages should be copied */ + size_t null_msgs; /* Number of NULL messages found in each loop */ + H5O_mesg_t *mesg_src; /* Message in source object header */ + H5O_mesg_t *mesg_dst; /* Message in source object header */ + const H5O_msg_class_t *copy_type; /* Type of message to use for copying */ + const H5O_obj_class_t *obj_class = NULL; /* Type of object we are copying */ + void *udata = NULL; /* User data for passing to message callbacks */ + size_t dst_oh_size; /* Total size of the destination OH */ + uint8_t *current_pos; /* Current position in destination image */ + size_t msghdr_size; + herr_t ret_value = SUCCEED; + + FUNC_ENTER_NOAPI_NOINIT(H5O_copy_header_real) + + HDassert(oloc_src); + HDassert(oloc_src->file); + HDassert(H5F_addr_defined(oloc_src->addr)); + HDassert(oloc_dst->file); + HDassert(cpy_info); + + /* Get source object header */ + if(NULL == (oh_src = H5AC_protect(oloc_src->file, dxpl_id, H5AC_OHDR, oloc_src->addr, NULL, NULL, H5AC_READ))) + HGOTO_ERROR(H5E_OHDR, H5E_CANTLOAD, FAIL, "unable to load object header") + + /* Get pointer to object class for this object */ + if(NULL == (obj_class = H5O_obj_class_real(oh_src))) + HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, FAIL, "unable to determine object type") + + /* Retrieve user data for particular type of object to copy */ + if(obj_class->get_copy_file_udata && + (NULL == (udata = (obj_class->get_copy_file_udata)()))) + HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, FAIL, "unable to retrieve copy user data") + + /* Flush any dirty messages in source object header to update the header chunks */ + if(H5O_flush_msgs(oloc_src->file, oh_src) < 0) + HGOTO_ERROR(H5E_OHDR, H5E_CANTFLUSH, FAIL, "unable to flush object header messages") + + /* Allocate the destination object header and fill in header fields */ + if(NULL == (oh_dst = H5FL_MALLOC(H5O_t))) + HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed") + + /* Initialize header information */ + oh_dst->version = oh_src->version; + oh_dst->nlink = 0; + + /* Initialize size of chunk array. The destination always has only one + * chunk. + */ + oh_dst->alloc_nchunks = oh_dst->nchunks = 1; + + /* Allocate memory for the chunk array */ + if(NULL == (oh_dst->chunk = H5FL_SEQ_MALLOC(H5O_chunk_t, oh_dst->alloc_nchunks))) + HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed") + + /* Allocate memory for "deleted" array. This array marks the message in + * the source that shouldn't be copied to the destination. + */ + if(NULL == (deleted = HDmalloc(sizeof(hbool_t) * oh_src->nmesgs))) + HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed") + HDmemset(deleted, FALSE, sizeof(hbool_t) * oh_src->nmesgs); + + /* "pre copy" pass over messages, to gather information for actual message copy operation + * (for messages which depend on information from other messages) + * Keep track of how many NULL or deleted messages we find (or create) + */ + null_msgs = 0; + for(mesgno = 0; mesgno < oh_src->nmesgs; mesgno++) { + /* Set up convenience variables */ + mesg_src = &(oh_src->mesg[mesgno]); + mesg_dst = &(oh_dst->mesg[mesgno]); + + /* Sanity check */ + HDassert(!mesg_src->dirty); /* Should be cleared by earlier call to flush messages */ + + /* Check for shared message to operate on */ + if(mesg_src->flags & H5O_FLAG_SHARED) + copy_type = H5O_MSG_SHARED; + else + copy_type = mesg_src->type; + + /* Check for continuation message; these are converted to NULL + * messages because the destination OH will have only one chunk + */ + if(H5O_CONT_ID == mesg_src->type->id || H5O_NULL_ID == mesg_src->type->id) { + deleted[mesgno] = TRUE; + ++null_msgs; + copy_type = H5O_MSG_NULL; + } + HDassert(copy_type); + + if(copy_type->pre_copy_file ) { + /* + * Decode the message if necessary. If the message is shared then do + * a shared message, ignoring the message type. + */ + if(NULL == mesg_src->native) { + /* Decode the message if necessary */ + HDassert(copy_type->decode); + if(NULL == (mesg_src->native = (copy_type->decode)(oloc_src->file, dxpl_id, mesg_src->raw))) + HGOTO_ERROR(H5E_OHDR, H5E_CANTDECODE, FAIL, "unable to decode a message") + } /* end if (NULL == mesg_src->native) */ + + /* Perform "pre copy" operation on message */ + if((copy_type->pre_copy_file)(oloc_src->file, mesg_src->type, mesg_src->native, &(deleted[mesgno]), cpy_info, udata) < 0) + HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, FAIL, "unable to perform 'pre copy' operation on message") + + /* Check if the message should be deleted in the destination */ + if(deleted[mesgno]) { + /* Mark message as deleted */ + ++null_msgs; + } /* end if(deleted) */ + } /* end if(copy_type->pre_copy_file) */ + } /* end for */ + + /* Initialize size of message list. It may or may not include the NULL messages + * detected above. + */ + if(cpy_info->preserve_null) + oh_dst->alloc_nmesgs = oh_dst->nmesgs = oh_src->nmesgs; + else + oh_dst->alloc_nmesgs = oh_dst->nmesgs = (oh_src->nmesgs - null_msgs); + + /* Allocate memory for destination message array */ + if(oh_dst->alloc_nmesgs > 0) { + if(NULL == (oh_dst->mesg = H5FL_SEQ_CALLOC(H5O_mesg_t, oh_dst->alloc_nmesgs))) + HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed") + } + + /* "copy" pass over messages, to perform main message copying */ + null_msgs = 0; + for(mesgno = 0; mesgno < oh_dst->nmesgs; mesgno++) { + /* Skip any deleted or NULL messages in the source unless the + * preserve_null flag is set + */ + if(FALSE == cpy_info->preserve_null) { + while(deleted[mesgno + null_msgs]) { + ++null_msgs; + HDassert(mesgno + null_msgs < oh_src->nmesgs); + } + } + + /* Set up convenience variables */ + mesg_src = &(oh_src->mesg[mesgno + null_msgs]); + mesg_dst = &(oh_dst->mesg[mesgno]); + + /* Initialize on destination message */ + mesg_dst->chunkno = 0; + mesg_dst->dirty = FALSE; + mesg_dst->flags = mesg_src->flags; + mesg_dst->native = NULL; + mesg_dst->raw = NULL; + mesg_dst->raw_size = mesg_src->raw_size; + mesg_dst->type = mesg_src->type; + + /* If we're preserving deleted messages, set their types to 'NULL' + * in the destination. + */ + if(cpy_info->preserve_null && deleted[mesgno]) { + mesg_dst->type = H5O_MSG_NULL; + } + + /* Check for shared message to operate on */ + /* (Use destination message, in case the message has been removed (i.e + * converted to a nil message) in the destination -QAK) + */ + if(mesg_dst->flags & H5O_FLAG_SHARED) + copy_type = H5O_MSG_SHARED; + else + copy_type = mesg_dst->type; + HDassert(copy_type); + + /* copy this message into destination file */ + if(copy_type->copy_file) { + /* + * Decode the message if necessary. If the message is shared then do + * a shared message, ignoring the message type. + */ + if(NULL == mesg_src->native) { + /* Decode the message if necessary */ + HDassert(copy_type->decode); + if(NULL == (mesg_src->native = (copy_type->decode)(oloc_src->file, dxpl_id, mesg_src->raw))) + HGOTO_ERROR(H5E_OHDR, H5E_CANTDECODE, FAIL, "unable to decode a message") + } /* end if (NULL == mesg_src->native) */ + + /* Copy the source message */ + if((mesg_dst->native = H5O_copy_mesg_file(copy_type, mesg_dst->type, + oloc_src->file, mesg_src->native, oloc_dst->file, dxpl_id, + cpy_info, udata)) == NULL) + HGOTO_ERROR(H5E_OHDR, H5E_CANTCOPY, FAIL, "unable to copy object header message") + + /* Mark the message in the destination as dirty, so it'll get encoded when the object header is flushed */ + mesg_dst->dirty = TRUE; + } /* end if (mesg_src->type->copy_file) */ + } /* end of mesgno loop */ + + + /* Allocate the destination header and copy any messages that didn't have + * copy callbacks. They get copied directly from the source image to the + * destination image. + */ + + /* Calculate how big the destination object header will be on disk. + * This isn't necessarily the same size as the original. + */ + dst_oh_size = H5O_SIZEOF_HDR_OH(oh_dst); + + /* Add space for messages. */ + for(mesgno = 0; mesgno < oh_dst->nmesgs; mesgno++) { + dst_oh_size += H5O_SIZEOF_MSGHDR_OH(oh_dst); + dst_oh_size += H5O_ALIGN_OH(oh_dst, oh_dst->mesg[mesgno].raw_size); + } + + /* Allocate space for chunk in destination file */ + if(HADDR_UNDEF == (oh_dst->chunk[0].addr = H5MF_alloc(oloc_dst->file, H5FD_MEM_OHDR, dxpl_id, (hsize_t)dst_oh_size))) + HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "file allocation failed for object header") + addr_new = oh_dst->chunk[0].addr; + + /* Create memory image for the new chunk */ + if(NULL == (oh_dst->chunk[0].image = H5FL_BLK_MALLOC(chunk_image, dst_oh_size))) + HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed") + + /* Set dest. chunk information */ + oh_dst->chunk[0].dirty = TRUE; + oh_dst->chunk[0].size = dst_oh_size; + oh_dst->chunk[0].gap = 0; + + /* Set up raw pointers and copy messages that didn't need special + * treatment. This has to happen after the destination header has been + * allocated. + */ + HDassert(H5O_SIZEOF_HDR_OH(oh_src) == H5O_SIZEOF_HDR_OH(oh_dst)); + HDassert(H5O_SIZEOF_MSGHDR_OH(oh_src) == H5O_SIZEOF_MSGHDR_OH(oh_dst)); + msghdr_size = H5O_SIZEOF_MSGHDR_OH(oh_src); + + current_pos = oh_dst->chunk[0].image; + + /* Copy the message header. Most of this will be overwritten when + * the header is flushed to disk, but later versions have a + * magic number that isn't. + */ + HDmemcpy(current_pos, oh_src->chunk[0].image, + (size_t)(H5O_SIZEOF_HDR_OH(oh_dst) - H5O_SIZEOF_CHKSUM_OH(oh_dst))); + current_pos += H5O_SIZEOF_HDR_OH(oh_dst) - H5O_SIZEOF_CHKSUM_OH(oh_dst); + + /* JAMES: include this in loop above? Doesn't take deleted messages + * into account + */ + /* Copy each message that wasn't dirtied above */ + null_msgs = 0; + for(mesgno = 0; mesgno < oh_dst->nmesgs; mesgno++) { + /* Skip any deleted or NULL messages in the source unless the + * preserve_null flag is set + */ + if(FALSE == cpy_info->preserve_null) { + while(deleted[mesgno + null_msgs]) { + ++null_msgs; + HDassert(mesgno + null_msgs < oh_src->nmesgs); + } + } + + /* Set up convenience variables */ + mesg_src = &(oh_src->mesg[mesgno + null_msgs]); + mesg_dst = &(oh_dst->mesg[mesgno]); + + if(! mesg_dst->dirty) { + /* Copy the message header plus the message's raw data. */ + HDmemcpy(current_pos, mesg_src->raw - msghdr_size, + msghdr_size + mesg_src->raw_size); + } + mesg_dst->raw = current_pos + msghdr_size; + current_pos += mesg_dst->raw_size + msghdr_size; + } + + /* Make sure we filled the chunk, except for room at the end for a checksum */ + HDassert(current_pos + H5O_SIZEOF_CHKSUM_OH(oh_dst) == dst_oh_size + oh_dst->chunk[0].image); + + /* Set the dest. object location to the first chunk address */ + HDassert(H5F_addr_defined(addr_new)); + oloc_dst->addr = addr_new; + + /* Allocate space for the address mapping of the object copied */ + if(NULL == (addr_map = H5FL_MALLOC(H5O_addr_map_t))) + HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed") + + /* Insert the address mapping for the new object into the copied list */ + /* (Do this here, because "post copy" possibly checks it) */ + addr_map->src_addr = oloc_src->addr; + addr_map->dst_addr = oloc_dst->addr; + addr_map->is_locked = TRUE; /* We've locked the object currently */ + addr_map->inc_ref_count = 0; /* Start with no additional ref counts to add */ + + if(H5SL_insert(cpy_info->map_list, addr_map, &(addr_map->src_addr)) < 0) + HGOTO_ERROR(H5E_OHDR, H5E_CANTINSERT, FAIL, "can't insert object into skip list") + + /* "post copy" loop over messages, to fix up any messages which require a complete + * object header for destination object + */ + null_msgs = 0; + for(mesgno = 0; mesgno < oh_dst->nmesgs; mesgno++) { + /* Skip any deleted or NULL messages in the source unless the + * preserve_null flag is set + */ + if(FALSE == cpy_info->preserve_null) { + while(deleted[mesgno + null_msgs]) { + ++null_msgs; + HDassert(mesgno + null_msgs < oh_src->nmesgs); + } + } + + /* Set up convenience variables */ + mesg_src = &(oh_src->mesg[mesgno + null_msgs]); + mesg_dst = &(oh_dst->mesg[mesgno]); + + /* Check for shared message to operate on */ + /* (Use destination message, in case the message has been removed (i.e + * converted to a nil message) in the destination -QAK) + */ + if(mesg_dst->flags & H5O_FLAG_SHARED) + copy_type = H5O_MSG_SHARED; + else + copy_type = mesg_dst->type; + HDassert(copy_type); + + if(copy_type->post_copy_file && mesg_src->native) { + /* Sanity check destination message */ + HDassert(mesg_dst->type == mesg_src->type); + HDassert(mesg_dst->native); + + /* Perform "post copy" operation on message */ + if((copy_type->post_copy_file)(oloc_src, mesg_src->native, oloc_dst, + mesg_dst->native, dxpl_id, cpy_info) < 0) + HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, FAIL, "unable to perform 'post copy' operation on message") + } /* end if */ + } /* end for */ + + /* Indicate that the destination address will no longer be locked */ + addr_map->is_locked = FALSE; + + /* Increment object header's reference count, if any descendents have created links to link to this object */ + if(addr_map->inc_ref_count) { + H5_CHECK_OVERFLOW(addr_map->inc_ref_count, hsize_t, int); + oh_dst->nlink += (int)addr_map->inc_ref_count; + } /* end if */ + + /* Insert destination object header in cache */ + if(H5AC_set(oloc_dst->file, dxpl_id, H5AC_OHDR, oloc_dst->addr, oh_dst, H5AC__DIRTIED_FLAG) < 0) + HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, FAIL, "unable to cache object header") + +done: + /* Free deleted array */ + if(deleted) { + HDfree(deleted); + } + + /* Release pointer to source object header and its derived objects */ + if(oh_src != NULL) { + /* Unprotect the source object header */ + if(H5AC_unprotect(oloc_src->file, dxpl_id, H5AC_OHDR, oloc_src->addr, oh_src, H5AC__NO_FLAGS_SET) < 0) + HDONE_ERROR(H5E_OHDR, H5E_PROTECT, FAIL, "unable to release object header") + } /* end if */ + + /* Release pointer to destination object header */ + if(ret_value < 0 && oh_dst) { + if(H5O_dest(oloc_dst->file, oh_dst) < 0) + HDONE_ERROR(H5E_OHDR, H5E_CANTFREE, FAIL, "unable to destroy object header data") + } /* end if */ + + /* Release user data for particular type of object to copy */ + if(udata) { + HDassert(obj_class); + HDassert(obj_class->free_copy_file_udata); + (obj_class->free_copy_file_udata)(udata); + } /* end if */ + + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5O_copy_header_real() */ + + +/*------------------------------------------------------------------------- + * 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_addr_map_t *addr_map; /* Address mapping of object copied */ + 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_dst); + HDassert(oloc_dst->file); + HDassert(cpy_info); + + /* Look up the address of the object to copy in the skip list */ + addr_map = (H5O_addr_map_t *)H5SL_search(cpy_info->map_list, &(oloc_src->addr)); + + /* 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) < 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; + + /* 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) +{ + FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_copy_free_addrmap_cb) + + HDassert(item); + + /* Release the 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_HADDR, 0.5, (size_t)16)) == 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) < 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 |