/*-------------------------------------------------------------------------
* Function: H5O_fill_new_encode
*
* Purpose: Encode a new fill value message. The new fill value
* message is fill value plus space allocation time and
* fill value writing time and whether fill value is defined.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Feb 26, 2002
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O_fill_new_encode(H5F_t UNUSED *f, uint8_t *p, const void *_mesg)
{
const H5O_fill_new_t *mesg = (const H5O_fill_new_t *)_mesg;
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_fill_new_encode);
assert(f);
assert(p);
assert(mesg && NULL==mesg->type);
/* Version */
*p++ = H5O_FILL_VERSION;
/* Space allocation time */
*p++ = mesg->alloc_time;
/* Fill value writing time */
*p++ = mesg->fill_time;
/* Whether fill value is defined */
*p++ = mesg->fill_defined;
/* Does it handle undefined fill value? */
INT32ENCODE(p, mesg->size);
if(mesg->size>0)
if(mesg->buf) {
H5_CHECK_OVERFLOW(mesg->size,ssize_t,size_t);
HDmemcpy(p, mesg->buf, (size_t)mesg->size);
} /* end if */
FUNC_LEAVE_NOAPI(SUCCEED);
}
/*--------------------------------------------------------------------------
NAME
H5HP_count
PURPOSE
Check the number of elements in a heap
USAGE
ssize_t H5HP_count(heap)
const H5HP_t *heap; IN: Pointer to heap to query
RETURNS
Returns non-negative on success, negative on failure.
DESCRIPTION
Checks the number of elements in heap
GLOBAL VARIABLES
COMMENTS, BUGS, ASSUMPTIONS
EXAMPLES
REVISION LOG
--------------------------------------------------------------------------*/
ssize_t
H5HP_count(const H5HP_t *heap)
{
ssize_t ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT_NOERR
/* Check args */
HDassert(heap);
/* Check internal consistency */
/* (Pre-condition) */
HDassert(heap->nobjs<heap->nalloc);
HDassert(heap->heap);
HDassert((heap->type==H5HP_MAX_HEAP && heap->heap[0].val==INT_MAX) ||
(heap->type==H5HP_MIN_HEAP && heap->heap[0].val==INT_MIN));
HDassert(heap->heap[0].obj==NULL);
/* Return the number of objects in the heap */
H5_CHECK_OVERFLOW(heap->nobjs,size_t,ssize_t);
ret_value=(ssize_t)heap->nobjs;
/* No post-condition check necessary, since heap is constant */
FUNC_LEAVE_NOAPI(ret_value);
} /* end H5HP_count() */
/*------------------------------------------------------------------------- * Function: H5HL_dblk_realloc * * Purpose: Reallocate data block for heap * * Return: Success: Non-negative * Failure: Negative * * Programmer: Quincey Koziol * [email protected] * Oct 12 2008 * *------------------------------------------------------------------------- */ static herr_t H5HL_dblk_realloc(H5F_t *f, hid_t dxpl_id, H5HL_t *heap, size_t new_heap_size) { H5HL_dblk_t *dblk; /* Local heap data block */ haddr_t old_addr; /* Old location of heap data block */ haddr_t new_addr; /* New location of heap data block */ size_t old_heap_size; /* Old size of heap data block */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT /* check arguments */ HDassert(heap); HDassert(new_heap_size > 0); /* Release old space on disk */ old_addr = heap->dblk_addr; old_heap_size = heap->dblk_size; H5_CHECK_OVERFLOW(old_heap_size, size_t, hsize_t); if(H5MF_xfree(f, H5FD_MEM_LHEAP, dxpl_id, old_addr, (hsize_t)old_heap_size) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTFREE, FAIL, "can't release old heap data?") /* Allocate new space on disk */ H5_CHECK_OVERFLOW(new_heap_size, size_t, hsize_t); if(HADDR_UNDEF == (new_addr = H5MF_alloc(f, H5FD_MEM_LHEAP, dxpl_id, (hsize_t)new_heap_size))) HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "unable to allocate file space for heap") /* Update heap info*/ heap->dblk_addr = new_addr; heap->dblk_size = new_heap_size; /* Check if heap data block actually moved in the file */ if(H5F_addr_eq(old_addr, new_addr)) { /* Check if heap data block is contiguous w/prefix */ if(heap->single_cache_obj) { /* Sanity check */ HDassert(H5F_addr_eq(heap->prfx_addr + heap->prfx_size, old_addr)); HDassert(heap->prfx); /* Resize the heap prefix in the cache */ if(H5AC_resize_entry(heap->prfx, (size_t)(heap->prfx_size + new_heap_size)) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTRESIZE, FAIL, "unable to resize heap in cache") } /* end if */ else {
/*-------------------------------------------------------------------------
* Function: H5A_dense_build_table
*
* Purpose: Builds a table containing a sorted list of attributes for
* an object
*
* Note: Used for building table of attributes in non-native iteration
* order for an index. Uses the "name" index to retrieve records,
* but the 'idx_type' index for sorting them.
*
* Return: Success: Non-negative
* Failure: Negative
*
* Programmer: Quincey Koziol
* Dec 11, 2006
*
*-------------------------------------------------------------------------
*/
herr_t
H5A_dense_build_table(H5F_t *f, hid_t dxpl_id, const H5O_ainfo_t *ainfo,
H5_index_t idx_type, H5_iter_order_t order, H5A_attr_table_t *atable)
{
H5B2_t *bt2_name = NULL; /* v2 B-tree handle for name index */
hsize_t nrec; /* # of records in v2 B-tree */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/* Sanity check */
HDassert(f);
HDassert(ainfo);
HDassert(H5F_addr_defined(ainfo->fheap_addr));
HDassert(H5F_addr_defined(ainfo->name_bt2_addr));
HDassert(atable);
/* Open the name index v2 B-tree */
if(NULL == (bt2_name = H5B2_open(f, dxpl_id, ainfo->name_bt2_addr, NULL)))
HGOTO_ERROR(H5E_ATTR, H5E_CANTOPENOBJ, FAIL, "unable to open v2 B-tree for name index")
/* Retrieve # of records in "name" B-tree */
/* (should be same # of records in all indices) */
if(H5B2_get_nrec(bt2_name, &nrec) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTGET, FAIL, "can't retrieve # of records in index")
/* Set size of table */
H5_CHECK_OVERFLOW(nrec, /* From: */ hsize_t, /* To: */ size_t);
atable->nattrs = (size_t)nrec;
/* Allocate space for the table entries */
if(atable->nattrs > 0) {
H5A_dense_bt_ud_t udata; /* User data for iteration callback */
H5A_attr_iter_op_t attr_op; /* Attribute operator */
/* Allocate the table to store the attributes */
if((atable->attrs = (H5A_t **)H5FL_SEQ_CALLOC(H5A_t_ptr, atable->nattrs)) == NULL)
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed")
/* Set up user data for iteration */
udata.atable = atable;
udata.curr_attr = 0;
/* Build iterator operator */
attr_op.op_type = H5A_ATTR_OP_LIB;
attr_op.u.lib_op = H5A_dense_build_table_cb;
/* Iterate over the links in the group, building a table of the link messages */
if(H5A_dense_iterate(f, dxpl_id, (hid_t)0, ainfo, H5_INDEX_NAME,
H5_ITER_NATIVE, (hsize_t)0, NULL, &attr_op, &udata) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTINIT, FAIL, "error building attribute table")
/* Sort attribute table in correct iteration order */
if(H5A_attr_sort_table(atable, idx_type, order) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTSORT, FAIL, "error sorting attribute table")
} /* end if */
/*-------------------------------------------------------------------------
* Function: H5O_fill_new_decode
*
* Purpose: Decode a new fill value message. The new fill value
* message is fill value plus space allocation time and
* fill value writing time and whether fill value is defined.
*
* Return: Success: Ptr to new message in native struct.
*
* Failure: NULL
*
* Programmer: Raymond Lu
* Feb 26, 2002
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static void *
H5O_fill_new_decode(H5F_t UNUSED *f, hid_t UNUSED dxpl_id, const uint8_t *p)
{
H5O_fill_new_t *mesg=NULL;
int version;
void *ret_value;
FUNC_ENTER_NOAPI_NOINIT(H5O_fill_new_decode);
assert(f);
assert(p);
if (NULL==(mesg=H5FL_CALLOC(H5O_fill_new_t)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for fill value message");
/* Version */
version = *p++;
if( version != H5O_FILL_VERSION && version !=H5O_FILL_VERSION_2)
HGOTO_ERROR(H5E_OHDR, H5E_CANTLOAD, NULL, "bad version number for fill value message");
/* Space allocation time */
mesg->alloc_time = (H5D_alloc_time_t)*p++;
/* Fill value write time */
mesg->fill_time = (H5D_fill_time_t)*p++;
/* Whether fill value is defined */
mesg->fill_defined = *p++;
/* Only decode fill value information if one is defined */
if(mesg->fill_defined) {
INT32DECODE(p, mesg->size);
if (mesg->size>0) {
H5_CHECK_OVERFLOW(mesg->size,ssize_t,size_t);
if (NULL==(mesg->buf=H5MM_malloc((size_t)mesg->size)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for fill value");
HDmemcpy(mesg->buf, p, (size_t)mesg->size);
}
} /* end if */
else
mesg->size=(-1);
/* Set return value */
ret_value = (void*)mesg;
done:
if (!ret_value && mesg) {
if(mesg->buf)
H5MM_xfree(mesg->buf);
H5FL_FREE(H5O_fill_new_t,mesg);
}
FUNC_LEAVE_NOAPI(ret_value);
}
/*-------------------------------------------------------------------------
* Function: H5O_fill_copy_dyn
*
* Purpose: Copy dynamic fill value fields
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Quincey Koziol
* Thursday, May 31, 2007
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O_fill_copy_dyn(H5O_fill_t *dest, const H5O_fill_t *mesg)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5O_fill_copy_dyn)
HDassert(dest);
HDassert(mesg);
/* Copy data type of fill value */
if(mesg->type) {
if(NULL == (dest->type = H5T_copy(mesg->type, H5T_COPY_TRANSIENT)))
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to copy fill value data type");
} /* end if */
else
dest->type = NULL;
/* Copy fill value and its size */
if(mesg->buf) {
H5_CHECK_OVERFLOW(mesg->size,ssize_t,size_t);
if(NULL == (dest->buf = H5MM_malloc((size_t)mesg->size)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for fill value");
HDmemcpy(dest->buf, mesg->buf, (size_t)mesg->size);
/* Check for needing to convert/copy fill value */
if(mesg->type) {
H5T_path_t *tpath; /* Conversion information */
/* Set up type conversion function */
if(NULL == (tpath = H5T_path_find(mesg->type, dest->type, NULL, NULL, H5AC_ind_dxpl_id)))
HGOTO_ERROR(H5E_DATASET, H5E_UNSUPPORTED, FAIL, "unable to convert between src and dest data types")
/* If necessary, convert fill value datatypes (which copies VL components, etc.) */
if(!H5T_path_noop(tpath)) {
hid_t dst_id, src_id; /* Source & destination datatypes for type conversion */
uint8_t *bkg_buf = NULL; /* Background conversion buffer */
size_t bkg_size; /* Size of background buffer */
/* Wrap copies of types to convert */
dst_id = H5I_register(H5I_DATATYPE, H5T_copy(dest->type, H5T_COPY_TRANSIENT));
if(dst_id < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to copy/register datatype")
src_id = H5I_register(H5I_DATATYPE, H5T_copy(mesg->type, H5T_COPY_ALL));
if(src_id < 0) {
H5I_dec_ref(dst_id);
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to copy/register datatype")
} /* end if */
/*-------------------------------------------------------------------------
* Function: h5tools_str_dump_region_blocks
*
* Purpose: Prints information about a dataspace region by appending
* the information to the specified string.
*
* Return: none
*
* In/Out:
* h5tools_context_t *ctx
* h5tools_str_t *str
*-------------------------------------------------------------------------
*/
void
h5tools_str_dump_region_blocks(h5tools_str_t *str, hid_t region,
const h5tool_format_t *info, h5tools_context_t *ctx)
{
hssize_t nblocks;
hsize_t alloc_size;
hsize_t *ptdata;
int ndims = H5Sget_simple_extent_ndims(region);
/*
* This function fails if the region does not have blocks.
*/
H5E_BEGIN_TRY {
nblocks = H5Sget_select_hyper_nblocks(region);
} H5E_END_TRY;
/* Print block information */
if (nblocks > 0) {
int i;
alloc_size = nblocks * ndims * 2 * sizeof(ptdata[0]);
assert(alloc_size == (hsize_t) ((size_t) alloc_size)); /*check for overflow*/
ptdata = malloc((size_t) alloc_size);
H5_CHECK_OVERFLOW(nblocks, hssize_t, hsize_t);
H5Sget_select_hyper_blocklist(region, (hsize_t)0, (hsize_t)nblocks, ptdata);
for (i = 0; i < nblocks; i++) {
int j;
h5tools_str_append(str, info->dset_blockformat_pre, i ? "," OPTIONAL_LINE_BREAK " " : "",
(unsigned long)i);
/* Start coordinates and opposite corner */
for (j = 0; j < ndims; j++)
h5tools_str_append(str, "%s%lu", j ? "," : "(",
(unsigned long) ptdata[i * 2 * ndims + j]);
for (j = 0; j < ndims; j++)
h5tools_str_append(str, "%s%lu", j ? "," : ")-(",
(unsigned long) ptdata[i * 2 * ndims + j + ndims]);
h5tools_str_append(str, ")");
}
free(ptdata);
} /* end if (nblocks > 0) */
}
/*-------------------------------------------------------------------------
* Function: h5tools_str_dump_region_points
*
* Purpose: Prints information about a dataspace region by appending
* the information to the specified string.
*
* Return: none
*
* In/Out:
* h5tools_context_t *ctx
* h5tools_str_t *str
*-------------------------------------------------------------------------
*/
void
h5tools_str_dump_region_points(h5tools_str_t *str, hid_t region,
const h5tool_format_t *info, h5tools_context_t *ctx)
{
hssize_t npoints;
hsize_t alloc_size;
hsize_t *ptdata;
int ndims = H5Sget_simple_extent_ndims(region);
/*
* This function fails if the region does not have points.
*/
H5E_BEGIN_TRY {
npoints = H5Sget_select_elem_npoints(region);
} H5E_END_TRY;
/* Print point information */
if (npoints > 0) {
int i;
alloc_size = npoints * ndims * sizeof(ptdata[0]);
assert(alloc_size == (hsize_t) ((size_t) alloc_size)); /*check for overflow*/
ptdata = malloc((size_t) alloc_size);
H5_CHECK_OVERFLOW(npoints, hssize_t, hsize_t);
H5Sget_select_elem_pointlist(region, (hsize_t)0, (hsize_t)npoints, ptdata);
for (i = 0; i < npoints; i++) {
int j;
h5tools_str_append(str, info->dset_ptformat_pre, i ? "," OPTIONAL_LINE_BREAK " " : "",
(unsigned long)i);
for (j = 0; j < ndims; j++)
h5tools_str_append(str, "%s%lu", j ? "," : "(",
(unsigned long) (ptdata[i * ndims + j]));
h5tools_str_append(str, ")");
}
free(ptdata);
} /* end if (npoints > 0) */
}
/*-------------------------------------------------------------------------
* Function: H5G_compact_build_table
*
* Purpose: Builds a table containing a sorted (alphabetically) list of
* links for a group
*
* Return: Success: Non-negative
* Failure: Negative
*
* Programmer: Quincey Koziol
* Sep 6, 2005
*
*-------------------------------------------------------------------------
*/
static herr_t
H5G_compact_build_table(const H5O_loc_t *oloc, hid_t dxpl_id, const H5O_linfo_t *linfo,
H5_index_t idx_type, H5_iter_order_t order, H5G_link_table_t *ltable)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5G_compact_build_table)
/* Sanity check */
HDassert(oloc);
HDassert(linfo);
HDassert(ltable);
/* Set size of table */
H5_CHECK_OVERFLOW(linfo->nlinks, hsize_t, size_t);
ltable->nlinks = (size_t)linfo->nlinks;
/* Allocate space for the table entries */
if(ltable->nlinks > 0) {
H5G_iter_bt_t udata; /* User data for iteration callback */
H5O_mesg_operator_t op; /* Message operator */
/* Allocate the link table */
if((ltable->lnks = (H5O_link_t *)H5MM_malloc(sizeof(H5O_link_t) * ltable->nlinks)) == NULL)
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed")
/* Set up user data for iteration */
udata.ltable = ltable;
udata.curr_lnk = 0;
/* Iterate through the link messages, adding them to the table */
op.op_type = H5O_MESG_OP_APP;
op.u.app_op = H5G_compact_build_table_cb;
if(H5O_msg_iterate(oloc, H5O_LINK_ID, &op, &udata, dxpl_id) < 0)
HGOTO_ERROR(H5E_SYM, H5E_NOTFOUND, FAIL, "error iterating over link messages")
/* Sort link table in correct iteration order */
if(H5G_link_sort_table(ltable, idx_type, order) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTSORT, FAIL, "error sorting link messages")
} /* end if */
/*--------------------------------------------------------------------------
NAME
H5R__create
PURPOSE
Creates a particular kind of reference for the user
USAGE
herr_t H5R__create(ref, loc, name, ref_type, space)
void *ref; OUT: Reference created
H5G_loc_t *loc; IN: File location used to locate object pointed to
const char *name; IN: Name of object at location LOC_ID of object
pointed to
H5R_type_t ref_type; IN: Type of reference to create
H5S_t *space; IN: Dataspace ID with selection, used for Dataset
Region references.
RETURNS
Non-negative on success/Negative on failure
DESCRIPTION
Creates a particular type of reference specified with REF_TYPE, in the
space pointed to by REF. The LOC_ID and NAME are used to locate the object
pointed to and the SPACE_ID is used to choose the region pointed to (for
Dataset Region references).
GLOBAL VARIABLES
COMMENTS, BUGS, ASSUMPTIONS
EXAMPLES
REVISION LOG
--------------------------------------------------------------------------*/
herr_t
H5R__create(void *_ref, H5G_loc_t *loc, const char *name, H5R_type_t ref_type,
H5S_t *space)
{
H5G_loc_t obj_loc; /* Group hier. location of object */
H5G_name_t path; /* Object group hier. path */
H5O_loc_t oloc; /* Object object location */
hbool_t obj_found = FALSE; /* Object location found */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE_VOL
HDassert(_ref);
HDassert(loc);
HDassert(name);
HDassert(ref_type > H5R_BADTYPE && ref_type < H5R_MAXTYPE);
/* Set up object location to fill in */
obj_loc.oloc = &oloc;
obj_loc.path = &path;
H5G_loc_reset(&obj_loc);
/* Find the object */
if(H5G_loc_find(loc, name, &obj_loc) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_NOTFOUND, FAIL, "object not found")
obj_found = TRUE;
switch (ref_type) {
case H5R_OBJECT:
{
hobj_ref_t *ref = (hobj_ref_t *)_ref; /* Get pointer to correct type of reference struct */
*ref = obj_loc.oloc->addr;
break;
}
case H5R_DATASET_REGION:
{
H5HG_t hobjid; /* Heap object ID */
hdset_reg_ref_t *ref = (hdset_reg_ref_t *)_ref; /* Get pointer to correct type of reference struct */
hssize_t buf_size; /* Size of buffer needed to serialize selection */
uint8_t *p; /* Pointer to OID to store */
uint8_t *buf; /* Buffer to store serialized selection in */
unsigned heapid_found; /* Flag for non-zero heap ID found */
unsigned u; /* local index */
/* Set up information for dataset region */
/* Return any previous heap block to the free list if we are
* garbage collecting
*/
if (H5F_GC_REF(loc->oloc->file)) {
/* Check for an existing heap ID in the reference */
for (u = 0, heapid_found = 0, p = (uint8_t *)ref; u < H5R_DSET_REG_REF_BUF_SIZE; u++)
if (p[u] != 0) {
heapid_found = 1;
break;
}
if (heapid_found != 0) {
/* Return heap block to free list */
}
}
/* Zero the heap ID out, may leak heap space if user is re-using
* reference and doesn't have garbage collection turned on
*/
HDmemset(ref, 0, H5R_DSET_REG_REF_BUF_SIZE);
/* Get the amount of space required to serialize the selection */
if ((buf_size = H5S_SELECT_SERIAL_SIZE(space, loc->oloc->file)) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTINIT, FAIL, "Invalid amount of space for serializing selection")
/* Increase buffer size to allow for the dataset OID */
buf_size += (hssize_t)sizeof(haddr_t);
/* Allocate the space to store the serialized information */
H5_CHECK_OVERFLOW(buf_size, hssize_t, size_t);
if (NULL == (buf = (uint8_t *)H5MM_malloc((size_t)buf_size)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed")
/* Serialize information for dataset OID into heap buffer */
p = (uint8_t *)buf;
H5F_addr_encode(loc->oloc->file, &p, obj_loc.oloc->addr);
/* Serialize the selection into heap buffer */
if (H5S_SELECT_SERIALIZE(space, &p, loc->oloc->file) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTCOPY, FAIL, "Unable to serialize selection")
/* Save the serialized buffer for later */
H5_CHECK_OVERFLOW(buf_size, hssize_t, size_t);
if(H5HG_insert(loc->oloc->file, (size_t)buf_size, buf, &hobjid) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_WRITEERROR, FAIL, "Unable to serialize selection")
/* Serialize the heap ID and index for storage in the file */
p = (uint8_t *)ref;
H5F_addr_encode(loc->oloc->file, &p, hobjid.addr);
UINT32ENCODE(p, hobjid.idx);
/* Free the buffer we serialized data in */
H5MM_xfree(buf);
break;
} /* end case H5R_DATASET_REGION */
case H5R_BADTYPE:
case H5R_MAXTYPE:
default:
HDassert("unknown reference type" && 0);
HGOTO_ERROR(H5E_REFERENCE, H5E_UNSUPPORTED, FAIL, "internal error (unknown reference type)")
} /* end switch */
done:
if (obj_found)
H5G_loc_free(&obj_loc);
FUNC_LEAVE_NOAPI_VOL(ret_value)
} /* end H5R__create() */
/*------------------------------------------------------------------------- * Function: H5F_sblock_load * * Purpose: Loads the superblock from the file, and deserializes * its information into the H5F_super_t structure. * * Return: Success: SUCCEED * Failure: NULL * * Programmer: Mike McGreevy * [email protected] * April 8, 2009 * *------------------------------------------------------------------------- */ static H5F_super_t * H5F_sblock_load(H5F_t *f, hid_t dxpl_id, haddr_t UNUSED addr, void *_udata) { H5F_super_t *sblock = NULL; /* File's superblock */ haddr_t base_addr = HADDR_UNDEF; /* Base address of file */ uint8_t sbuf[H5F_MAX_SUPERBLOCK_SIZE]; /* Buffer for superblock */ H5P_genplist_t *dxpl; /* DXPL object */ H5P_genplist_t *c_plist; /* File creation property list */ H5F_file_t *shared; /* shared part of `file' */ H5FD_t *lf; /* file driver part of `shared' */ haddr_t stored_eoa; /*relative end-of-addr in file */ haddr_t eof; /*end of file address */ uint8_t sizeof_addr; /* Size of offsets in the file (in bytes) */ uint8_t sizeof_size; /* Size of lengths in the file (in bytes) */ const size_t fixed_size = H5F_SUPERBLOCK_FIXED_SIZE; /*fixed sizeof superblock */ size_t variable_size; /*variable sizeof superblock */ uint8_t *p; /* Temporary pointer into encoding buffer */ unsigned super_vers; /* Superblock version */ hbool_t *dirtied = (hbool_t *)_udata; /* Set up dirtied out value */ H5F_super_t *ret_value; /* Return value */ FUNC_ENTER_NOAPI_NOINIT /* check arguments */ HDassert(f); HDassert(H5F_addr_eq(addr, 0)); HDassert(dirtied); /* Short cuts */ shared = f->shared; lf = shared->lf; /* Get the shared file creation property list */ if(NULL == (c_plist = (H5P_genplist_t *)H5I_object(shared->fcpl_id))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "can't get property list") /* Get the base address for the file in the VFD */ if(HADDR_UNDEF == (base_addr = H5FD_get_base_addr(lf))) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, NULL, "failed to get base address for file driver") /* Allocate space for the superblock */ if(NULL == (sblock = H5FL_CALLOC(H5F_super_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed") /* Get the DXPL plist object for DXPL ID */ if(NULL == (dxpl = (H5P_genplist_t *)H5I_object(dxpl_id))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "can't get property list") /* Read fixed-size portion of the superblock */ p = sbuf; H5_CHECK_OVERFLOW(fixed_size, size_t, haddr_t); if(H5FD_set_eoa(lf, H5FD_MEM_SUPER, (haddr_t)fixed_size) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "set end of space allocation request failed") if(H5FD_read(lf, dxpl, H5FD_MEM_SUPER, (haddr_t)0, fixed_size, p) < 0) HGOTO_ERROR(H5E_FILE, H5E_READERROR, NULL, "unable to read superblock") /* Skip over signature (already checked when locating the superblock) */ p += H5F_SIGNATURE_LEN; /* Superblock version */ super_vers = *p++; if(super_vers > HDF5_SUPERBLOCK_VERSION_LATEST) HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad superblock version number") if(H5P_set(c_plist, H5F_CRT_SUPER_VERS_NAME, &super_vers) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, NULL, "unable to set superblock version") /* Record the superblock version */ sblock->super_vers = super_vers; /* Sanity check */ HDassert(((size_t)(p - sbuf)) == fixed_size); /* Determine the size of the variable-length part of the superblock */ variable_size = (size_t)H5F_SUPERBLOCK_VARLEN_SIZE(super_vers, f); HDassert(variable_size > 0); HDassert(fixed_size + variable_size <= sizeof(sbuf)); /* Read in variable-sized portion of superblock */ if(H5FD_set_eoa(lf, H5FD_MEM_SUPER, (haddr_t)(fixed_size + variable_size)) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "set end of space allocation request failed") if(H5FD_read(lf, dxpl, H5FD_MEM_SUPER, (haddr_t)fixed_size, variable_size, p) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to read superblock") /* Check for older version of superblock format */ if(super_vers < HDF5_SUPERBLOCK_VERSION_2) { uint32_t status_flags; /* File status flags */ unsigned btree_k[H5B_NUM_BTREE_ID]; /* B-tree internal node 'K' values */ unsigned sym_leaf_k; /* Symbol table leaf node's 'K' value */ /* Freespace version (hard-wired) */ if(HDF5_FREESPACE_VERSION != *p++) HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad free space version number") /* Root group version number (hard-wired) */ if(HDF5_OBJECTDIR_VERSION != *p++) HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad object directory version number") /* Skip over reserved byte */ p++; /* Shared header version number (hard-wired) */ if(HDF5_SHAREDHEADER_VERSION != *p++) HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad shared-header format version number") /* Size of file addresses */ sizeof_addr = *p++; if(sizeof_addr != 2 && sizeof_addr != 4 && sizeof_addr != 8 && sizeof_addr != 16 && sizeof_addr != 32) HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad byte number in an address") if(H5P_set(c_plist, H5F_CRT_ADDR_BYTE_NUM_NAME, &sizeof_addr) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, NULL, "unable to set byte number in an address") shared->sizeof_addr = sizeof_addr; /* Keep a local copy also */ /* Size of file sizes */ sizeof_size = *p++; if(sizeof_size != 2 && sizeof_size != 4 && sizeof_size != 8 && sizeof_size != 16 && sizeof_size != 32) HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad byte number for object size") if(H5P_set(c_plist, H5F_CRT_OBJ_BYTE_NUM_NAME, &sizeof_size) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, NULL, "unable to set byte number for object size") shared->sizeof_size = sizeof_size; /* Keep a local copy also */ /* Skip over reserved byte */ p++; /* Various B-tree sizes */ UINT16DECODE(p, sym_leaf_k); if(sym_leaf_k == 0) HGOTO_ERROR(H5E_FILE, H5E_BADRANGE, NULL, "bad symbol table leaf node 1/2 rank") if(H5P_set(c_plist, H5F_CRT_SYM_LEAF_NAME, &sym_leaf_k) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, NULL, "unable to set rank for symbol table leaf nodes") sblock->sym_leaf_k = sym_leaf_k; /* Keep a local copy also */ /* Need 'get' call to set other array values */ if(H5P_get(c_plist, H5F_CRT_BTREE_RANK_NAME, btree_k) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "unable to get rank for btree internal nodes") UINT16DECODE(p, btree_k[H5B_SNODE_ID]); if(btree_k[H5B_SNODE_ID] == 0) HGOTO_ERROR(H5E_FILE, H5E_BADRANGE, NULL, "bad 1/2 rank for btree internal nodes") /* * Delay setting the value in the property list until we've checked * for the indexed storage B-tree internal 'K' value later. */ /* File status flags (not really used yet) */ UINT32DECODE(p, status_flags); HDassert(status_flags <= 255); sblock->status_flags = (uint8_t)status_flags; if(sblock->status_flags & ~H5F_SUPER_ALL_FLAGS) HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad flag value for superblock") /* * If the superblock version # is greater than 0, read in the indexed * storage B-tree internal 'K' value */ if(super_vers > HDF5_SUPERBLOCK_VERSION_DEF) { UINT16DECODE(p, btree_k[H5B_CHUNK_ID]); /* Reserved bytes are present only in version 1 */ if(super_vers == HDF5_SUPERBLOCK_VERSION_1) p += 2; /* reserved */ } /* end if */ else btree_k[H5B_CHUNK_ID] = HDF5_BTREE_CHUNK_IK_DEF; /* Set the B-tree internal node values, etc */ if(H5P_set(c_plist, H5F_CRT_BTREE_RANK_NAME, btree_k) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, NULL, "unable to set rank for btree internal nodes") HDmemcpy(sblock->btree_k, btree_k, sizeof(unsigned) * (size_t)H5B_NUM_BTREE_ID); /* Keep a local copy also */ /* Remainder of "variable-sized" portion of superblock */ H5F_addr_decode(f, (const uint8_t **)&p, &sblock->base_addr/*out*/); H5F_addr_decode(f, (const uint8_t **)&p, &sblock->ext_addr/*out*/); H5F_addr_decode(f, (const uint8_t **)&p, &stored_eoa/*out*/); H5F_addr_decode(f, (const uint8_t **)&p, &sblock->driver_addr/*out*/); /* Allocate space for the root group symbol table entry */ HDassert(!sblock->root_ent); if(NULL == (sblock->root_ent = (H5G_entry_t *)H5MM_calloc(sizeof(H5G_entry_t)))) HGOTO_ERROR(H5E_FILE, H5E_CANTALLOC, NULL, "can't allocate space for root group symbol table entry") /* decode the root group symbol table entry */ if(H5G_ent_decode(f, (const uint8_t **)&p, sblock->root_ent) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTDECODE, NULL, "can't decode root group symbol table entry") /* Set the root group address to the correct value */ sblock->root_addr = sblock->root_ent->header; /* * Check if superblock address is different from base address and * adjust base address and "end of address" address if so. */ if(!H5F_addr_eq(base_addr, sblock->base_addr)) { /* Check if the superblock moved earlier in the file */ if(H5F_addr_lt(base_addr, sblock->base_addr)) stored_eoa -= (sblock->base_addr - base_addr); else /* The superblock moved later in the file */ stored_eoa += (base_addr - sblock->base_addr); /* Adjust base address for offsets of the HDF5 data in the file */ sblock->base_addr = base_addr; /* Set the base address for the file in the VFD now */ if(H5FD_set_base_addr(lf, sblock->base_addr) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, NULL, "failed to set base address for file driver") /* Indicate that the superblock should be marked dirty */ *dirtied = TRUE; } /* end if */ /* This step is for h5repart tool only. If user wants to change file driver * from family to sec2 while using h5repart, set the driver address to * undefined to let the library ignore the family driver information saved * in the superblock. */ if(H5F_HAS_FEATURE(f, H5FD_FEAT_IGNORE_DRVRINFO)) { /* Eliminate the driver info */ sblock->driver_addr = HADDR_UNDEF; /* Indicate that the superblock should be marked dirty */ *dirtied = TRUE; } /* end if */ /* Decode the optional driver information block */ if(H5F_addr_defined(sblock->driver_addr)) { uint8_t dbuf[H5F_MAX_DRVINFOBLOCK_SIZE]; /* Buffer for driver info block */ char drv_name[9]; /* Name of driver */ unsigned drv_vers; /* Version of driver info block */ size_t drv_variable_size; /* Size of variable-length portion of driver info block, in bytes */ /* Read in fixed-sized portion of driver info block */ p = dbuf; if(H5FD_set_eoa(lf, H5FD_MEM_SUPER, sblock->driver_addr + H5F_DRVINFOBLOCK_HDR_SIZE) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "set end of space allocation request failed") if(H5FD_read(lf, dxpl, H5FD_MEM_SUPER, sblock->driver_addr, (size_t)H5F_DRVINFOBLOCK_HDR_SIZE, p) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to read driver information block") /* Version number */ drv_vers = *p++; if(drv_vers != HDF5_DRIVERINFO_VERSION_0) HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "bad driver information block version number") p += 3; /* reserved bytes */ /* Driver info size */ UINT32DECODE(p, drv_variable_size); /* Sanity check */ HDassert(H5F_DRVINFOBLOCK_HDR_SIZE + drv_variable_size <= sizeof(dbuf)); /* Driver name and/or version */ HDstrncpy(drv_name, (const char *)p, (size_t)8); drv_name[8] = '\0'; p += 8; /* advance past name/version */ /* Check if driver matches driver information saved. Unfortunately, we can't push this * function to each specific driver because we're checking if the driver is correct. */ if(!HDstrncmp(drv_name, "NCSAfami", (size_t)8) && HDstrcmp(lf->cls->name, "family")) HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "family driver should be used") if(!HDstrncmp(drv_name, "NCSAmult", (size_t)8) && HDstrcmp(lf->cls->name, "multi")) HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "multi driver should be used") /* Read in variable-sized portion of driver info block */ if(H5FD_set_eoa(lf, H5FD_MEM_SUPER, sblock->driver_addr + H5F_DRVINFOBLOCK_HDR_SIZE + drv_variable_size) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "set end of space allocation request failed") if(H5FD_read(lf, dxpl, H5FD_MEM_SUPER, sblock->driver_addr + H5F_DRVINFOBLOCK_HDR_SIZE, drv_variable_size, p) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to read file driver information") /* Decode driver information */ if(H5FD_sb_decode(lf, drv_name, p) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to decode driver information") } /* end if */
