diff options
Diffstat (limited to 'src/H5Shyper.c')
| -rw-r--r-- | src/H5Shyper.c | 55 |
1 files changed, 39 insertions, 16 deletions
diff --git a/src/H5Shyper.c b/src/H5Shyper.c index 32f6200..09d450f 100644 --- a/src/H5Shyper.c +++ b/src/H5Shyper.c @@ -2071,21 +2071,53 @@ H5S_hyper_serialize (const H5S_t *space, uint8_t *buf) { const H5S_hyper_dim_t *diminfo; /* Alias for dataspace's diminfo information */ hsize_t tmp_count[H5O_LAYOUT_NDIMS]; /* Temporary hyperslab counts */ - hsize_t offset[H5O_LAYOUT_NDIMS]; /* Offset of element in dataspace */ - hsize_t start[H5O_LAYOUT_NDIMS]; /* Location of start of hyperslab */ - hsize_t end[H5O_LAYOUT_NDIMS]; /* Location of end of hyperslab */ - hsize_t temp_off; /* Offset in a given dimension */ + hsize_t offset[H5O_LAYOUT_NDIMS]; /* Offset of element in dataspace */ + hsize_t start[H5O_LAYOUT_NDIMS]; /* Location of start of hyperslab */ + hsize_t end[H5O_LAYOUT_NDIMS]; /* Location of end of hyperslab */ + hsize_t bounds_start[H5S_MAX_RANK]; /* Selection bounds */ + hsize_t bounds_end[H5S_MAX_RANK]; /* Selection bounds */ + hsize_t temp_off; /* Offset in a given dimension */ uint8_t *lenp; /* pointer to length location for later storage */ uint32_t len = 0; /* number of bytes used */ hsize_t block_count; /* block counter for regular hyperslabs */ unsigned fast_dim; /* Rank of the fastest changing dimension for the dataspace */ unsigned ndims; /* Rank of the dataspace */ int done; /* Whether we are done with the iteration */ + unsigned u; /* Local index variable */ + herr_t ret_value = SUCCEED; /* Return value */ - FUNC_ENTER_NOAPI_NOINIT_NOERR + FUNC_ENTER_NOAPI_NOINIT HDassert(space); + /* Set some convienence values */ + ndims = space->extent.rank; + fast_dim = ndims - 1; + diminfo=space->select.sel_info.hslab->opt_diminfo; + + /* Calculate the # of blocks */ + if(H5S_hyper_is_regular(space)) { + /* Check each dimension */ + for(block_count = 1, u = 0; u < ndims; u++) + block_count *= diminfo[u].count; + } /* end if */ + else + /* Spin through hyperslab spans */ + block_count = H5S_hyper_span_nblocks(space->select.sel_info.hslab->span_lst); + + /* Get bounding box */ + if(H5S_hyper_bounds(space, bounds_start, bounds_end) < 0) + HGOTO_ERROR(H5E_DATASPACE, H5E_CANTGET, FAIL, "can't get selection bounds") + + /* Determine whether the number of blocks or the high bounds in the selection exceed (2^32 - 1) */ + if(block_count > H5S_UINT32_MAX) + HGOTO_ERROR(H5E_DATASPACE, H5E_BADVALUE, FAIL, "invalid number of blocks in selection") + else { + for(u = 0; u < ndims; u++) + if(bounds_end[u] > H5S_UINT32_MAX) + HGOTO_ERROR(H5E_DATASPACE, H5E_BADVALUE, FAIL, "invalid hyperslab selection") + } + /* Store the preamble information */ UINT32ENCODE(buf, (uint32_t)H5S_GET_SELECT_TYPE(space)); /* Store the type of selection */ UINT32ENCODE(buf, (uint32_t)1); /* Store the version number */ @@ -2101,15 +2133,6 @@ H5S_hyper_serialize (const H5S_t *space, uint8_t *buf) if(space->select.sel_info.hslab->diminfo_valid) { unsigned u; /* Local counting variable */ - /* Set some convienence values */ - ndims = space->extent.rank; - fast_dim = ndims - 1; - diminfo=space->select.sel_info.hslab->opt_diminfo; - - /* Check each dimension */ - for(block_count = 1, u = 0; u < ndims; u++) - block_count *= diminfo[u].count; - /* Encode number of hyperslabs */ H5_CHECK_OVERFLOW(block_count, hsize_t, uint32_t); UINT32ENCODE(buf, (uint32_t)block_count); @@ -2188,7 +2211,6 @@ H5S_hyper_serialize (const H5S_t *space, uint8_t *buf) } /* end if */ else { /* Encode number of hyperslabs */ - block_count = H5S_hyper_span_nblocks(space->select.sel_info.hslab->span_lst); H5_CHECK_OVERFLOW(block_count, hsize_t, uint32_t); UINT32ENCODE(buf, (uint32_t)block_count); len+=4; @@ -2204,7 +2226,8 @@ H5S_hyper_serialize (const H5S_t *space, uint8_t *buf) /* Encode length */ UINT32ENCODE(lenp, (uint32_t)len); /* Store the length of the extra information */ - FUNC_LEAVE_NOAPI(SUCCEED) +done: + FUNC_LEAVE_NOAPI(ret_value) } /* H5S_hyper_serialize() */ |