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-rw-r--r--src/H5Ocopy.c592
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