/*------------------------------------------------------------------------- * Function: H5HL_create * * Purpose: Creates a new heap data structure on disk and caches it * in memory. SIZE_HINT is a hint for the initial size of the * data area of the heap. If size hint is invalid then a * reasonable (but probably not optimal) size will be chosen. * If the heap ever has to grow, then REALLOC_HINT is the * minimum amount by which the heap will grow. * * Return: Success: Non-negative. The file address of new heap is * returned through the ADDR argument. * * Failure: Negative * * Programmer: Robb Matzke * [email protected] * Jul 16 1997 * *------------------------------------------------------------------------- */ herr_t H5HL_create(H5F_t *f, hid_t dxpl_id, size_t size_hint, haddr_t *addr_p/*out*/) { H5HL_t *heap = NULL; /* Heap created */ H5HL_prfx_t *prfx = NULL; /* Heap prefix */ hsize_t total_size; /* Total heap size on disk */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(FAIL) /* check arguments */ HDassert(f); HDassert(addr_p); /* Adjust size hint as necessary */ if(size_hint && size_hint < H5HL_SIZEOF_FREE(f)) size_hint = H5HL_SIZEOF_FREE(f); size_hint = H5HL_ALIGN(size_hint); /* Allocate new heap structure */ if(NULL == (heap = H5HL_new(H5F_SIZEOF_SIZE(f), H5F_SIZEOF_ADDR(f), H5HL_SIZEOF_HDR(f)))) HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "can't allocate new heap struct") /* Allocate file space */ total_size = heap->prfx_size + size_hint; if(HADDR_UNDEF == (heap->prfx_addr = H5MF_alloc(f, H5FD_MEM_LHEAP, dxpl_id, total_size))) HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "unable to allocate file memory") /* Initialize info */ heap->single_cache_obj = TRUE; heap->dblk_addr = heap->prfx_addr + (hsize_t)heap->prfx_size; heap->dblk_size = size_hint; if(size_hint) if(NULL == (heap->dblk_image = H5FL_BLK_CALLOC(lheap_chunk, size_hint))) HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "memory allocation failed") /* free list */ if(size_hint) { if(NULL == (heap->freelist = H5FL_MALLOC(H5HL_free_t))) HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "memory allocation failed") heap->freelist->offset = 0; heap->freelist->size = size_hint; heap->freelist->prev = heap->freelist->next = NULL; heap->free_block = 0; } /* end if */ else { heap->freelist = NULL; heap->free_block = H5HL_FREE_NULL; } /* end else */ /* Allocate the heap prefix */ if(NULL == (prfx = H5HL_prfx_new(heap))) HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "memory allocation failed") /* Add to cache */ if(H5AC_insert_entry(f, dxpl_id, H5AC_LHEAP_PRFX, heap->prfx_addr, prfx, H5AC__NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTINIT, FAIL, "unable to cache local heap prefix") /* Set address to return */ *addr_p = heap->prfx_addr; done: if(ret_value < 0) { if(prfx) { if(H5HL_prfx_dest(prfx) < 0) HDONE_ERROR(H5E_HEAP, H5E_CANTFREE, FAIL, "unable to destroy local heap prefix") } /* end if */ else { if(heap) { if(H5F_addr_defined(heap->prfx_addr)) if(H5MF_xfree(f, H5FD_MEM_LHEAP, dxpl_id, heap->prfx_addr, total_size) < 0) HDONE_ERROR(H5E_HEAP, H5E_CANTFREE, FAIL, "can't release heap data?") if(H5HL_dest(heap) < 0) HDONE_ERROR(H5E_HEAP, H5E_CANTFREE, FAIL, "unable to destroy local heap") } /* end if */ } /* end else */ } /* end if */
/*-------------------------------------------------------------------------
* Function: H5O_efl_copy_file
*
* Purpose: Copies an efl message from _MESG to _DEST in file
*
* Return: Success: Ptr to _DEST
*
* Failure: NULL
*
* Programmer: Peter Cao
* September 29, 2005
*
*-------------------------------------------------------------------------
*/
static void *
H5O_efl_copy_file(H5F_t H5_ATTR_UNUSED *file_src, void *mesg_src, H5F_t *file_dst,
hbool_t H5_ATTR_UNUSED *recompute_size, unsigned H5_ATTR_UNUSED *mesg_flags,
H5O_copy_t H5_ATTR_UNUSED *cpy_info, void H5_ATTR_UNUSED *_udata, hid_t dxpl_id)
{
H5O_efl_t *efl_src = (H5O_efl_t *) mesg_src;
H5O_efl_t *efl_dst = NULL;
H5HL_t *heap = NULL; /* Pointer to local heap for EFL file names */
size_t idx, size, name_offset, heap_size;
void *ret_value = NULL; /* Return value */
FUNC_ENTER_NOAPI_NOINIT_TAG(dxpl_id, H5AC__COPIED_TAG, NULL)
/* check args */
HDassert(efl_src);
HDassert(file_dst);
/* Allocate space for the destination efl */
if(NULL == (efl_dst = (H5O_efl_t *)H5MM_calloc(sizeof(H5O_efl_t))))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
/* Copy the "top level" information */
HDmemcpy(efl_dst, efl_src, sizeof(H5O_efl_t));
/* Determine size needed for destination heap */
heap_size = H5HL_ALIGN(1); /* "empty" name */
for(idx = 0; idx < efl_src->nused; idx++)
heap_size += H5HL_ALIGN(HDstrlen(efl_src->slot[idx].name) + 1);
/* Create name heap */
if(H5HL_create(file_dst, dxpl_id, heap_size, &efl_dst->heap_addr/*out*/) < 0)
HGOTO_ERROR(H5E_EFL, H5E_CANTINIT, NULL, "can't create heap")
/* Pin the heap down in memory */
if(NULL == (heap = H5HL_protect(file_dst, dxpl_id, efl_dst->heap_addr, H5AC__NO_FLAGS_SET)))
HGOTO_ERROR(H5E_EFL, H5E_PROTECT, NULL, "unable to protect EFL file name heap")
/* Insert "empty" name first */
if((size_t)(-1) == (name_offset = H5HL_insert(file_dst, dxpl_id, heap, (size_t)1, "")))
HGOTO_ERROR(H5E_EFL, H5E_CANTINSERT, NULL, "can't insert file name into heap")
HDassert(0 == name_offset);
/* allocate array of external file entries */
if(efl_src->nalloc > 0) {
size = efl_src->nalloc * sizeof(H5O_efl_entry_t);
if((efl_dst->slot = (H5O_efl_entry_t *)H5MM_calloc(size)) == NULL)
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
/* copy content from the source. Need to update later */
HDmemcpy(efl_dst->slot, efl_src->slot, size);
} /* end if */
/* copy the name from the source */
for(idx = 0; idx < efl_src->nused; idx++) {
efl_dst->slot[idx].name = H5MM_xstrdup(efl_src->slot[idx].name);
if((size_t)(-1) == (efl_dst->slot[idx].name_offset = H5HL_insert(file_dst, dxpl_id, heap,
HDstrlen(efl_dst->slot[idx].name) + 1, efl_dst->slot[idx].name)))
HGOTO_ERROR(H5E_EFL, H5E_CANTINSERT, NULL, "can't insert file name into heap")
} /* end for */
/* Set return value */
ret_value = efl_dst;
done:
/* Release resources */
if(heap && H5HL_unprotect(heap) < 0)
HDONE_ERROR(H5E_EFL, H5E_PROTECT, NULL, "unable to unprotect EFL file name heap")
if(!ret_value)
if(efl_dst)
H5MM_xfree(efl_dst);
FUNC_LEAVE_NOAPI_TAG(ret_value, NULL)
} /* end H5O_efl_copy_file() */
