diff options
Diffstat (limited to 'src/H5Shyper.c')
| -rw-r--r-- | src/H5Shyper.c | 387 |
1 files changed, 232 insertions, 155 deletions
diff --git a/src/H5Shyper.c b/src/H5Shyper.c index 9feb8de..dc97ea2 100644 --- a/src/H5Shyper.c +++ b/src/H5Shyper.c @@ -96,6 +96,7 @@ typedef struct { hsize_t skip; /* Number of elements to skip in projected space */ hsize_t nelem; /* Number of elements to add to projected space (after skip) */ uint64_t op_gen; /* Operation generation for counting elements */ + hbool_t share_selection; /* Whether span trees in dst_space can be shared with proj_space */ } H5S_hyper_project_intersect_ud_t; /* Assert that H5S_MAX_RANK is <= 32 so our trick with using a 32 bit bitmap @@ -112,6 +113,9 @@ typedef struct { static H5S_hyper_span_t *H5S__hyper_new_span(hsize_t low, hsize_t high, H5S_hyper_span_info_t *down, H5S_hyper_span_t *next); static H5S_hyper_span_info_t *H5S__hyper_new_span_info(unsigned rank); +static H5S_hyper_span_info_t *H5S__hyper_copy_span_helper( + H5S_hyper_span_info_t *spans, unsigned rank, unsigned op_info_i, + uint64_t op_gen); static H5S_hyper_span_info_t *H5S__hyper_copy_span(H5S_hyper_span_info_t *spans, unsigned rank); static hbool_t H5S__hyper_cmp_spans(const H5S_hyper_span_info_t *span_info1, @@ -132,7 +136,7 @@ static herr_t H5S__hyper_clip_spans(H5S_hyper_span_info_t *a_spans, H5S_hyper_span_info_t **a_and_b, H5S_hyper_span_info_t **b_not_a); static herr_t H5S__hyper_merge_spans(H5S_t *space, H5S_hyper_span_info_t *new_spans); static hsize_t H5S__hyper_spans_nelem_helper(H5S_hyper_span_info_t *spans, - uint64_t op_gen); + unsigned op_info_i, uint64_t op_gen); static hsize_t H5S__hyper_spans_nelem(H5S_hyper_span_info_t *spans); static herr_t H5S__hyper_add_disjoint_spans(H5S_t *space, H5S_hyper_span_info_t *new_spans); static H5S_hyper_span_info_t *H5S__hyper_make_spans(unsigned rank, @@ -190,6 +194,7 @@ static htri_t H5S__hyper_shape_same(const H5S_t *space1, const H5S_t *space2); static htri_t H5S__hyper_intersect_block(const H5S_t *space, const hsize_t *start, const hsize_t *end); static herr_t H5S__hyper_adjust_u(H5S_t *space, const hsize_t *offset); +static herr_t H5S__hyper_adjust_s(H5S_t *space, const hssize_t *offset); static herr_t H5S__hyper_project_scalar(const H5S_t *space, hsize_t *offset); static herr_t H5S__hyper_project_simple(const H5S_t *space, H5S_t *new_space, hsize_t *offset); static herr_t H5S__hyper_iter_init(const H5S_t *space, H5S_sel_iter_t *iter); @@ -236,6 +241,7 @@ const H5S_select_class_t H5S_sel_hyper[1] = {{ H5S__hyper_shape_same, H5S__hyper_intersect_block, H5S__hyper_adjust_u, + H5S__hyper_adjust_s, H5S__hyper_project_scalar, H5S__hyper_project_simple, H5S__hyper_iter_init, @@ -2852,9 +2858,10 @@ done: PURPOSE Helper routine to copy a hyperslab span tree USAGE - H5S_hyper_span_info_t * H5S__hyper_copy_span_helper(spans, rank) + H5S_hyper_span_info_t * H5S__hyper_copy_span_helper(spans, rank, op_info_i, op_gen) H5S_hyper_span_info_t *spans; IN: Span tree to copy unsigned rank; IN: Rank of span tree + unsigned op_info_i; IN: Index of op info to use uint64_t op_gen; IN: Operation generation RETURNS Pointer to the copied span tree on success, NULL on failure @@ -2867,7 +2874,7 @@ done: --------------------------------------------------------------------------*/ static H5S_hyper_span_info_t * H5S__hyper_copy_span_helper(H5S_hyper_span_info_t *spans, unsigned rank, - uint64_t op_gen) + unsigned op_info_i, uint64_t op_gen) { H5S_hyper_span_t *span; /* Hyperslab span */ H5S_hyper_span_t *new_span; /* Temporary hyperslab span */ @@ -2881,9 +2888,9 @@ H5S__hyper_copy_span_helper(H5S_hyper_span_info_t *spans, unsigned rank, HDassert(spans); /* Check if the span tree was already copied */ - if(spans->op_gen == op_gen) { + if(spans->op_info[op_info_i].op_gen == op_gen) { /* Just return the value of the already copied span tree */ - ret_value = spans->u.copied; + ret_value = spans->op_info[op_info_i].u.copied; /* Increment the reference count of the span tree */ ret_value->count++; @@ -2899,10 +2906,10 @@ H5S__hyper_copy_span_helper(H5S_hyper_span_info_t *spans, unsigned rank, ret_value->count = 1; /* Set the operation generation for the span info, to avoid future copies */ - spans->op_gen = op_gen; + spans->op_info[op_info_i].op_gen = op_gen; /* Set the 'copied' pointer in the node being copied to the newly allocated node */ - spans->u.copied = ret_value; + spans->op_info[op_info_i].u.copied = ret_value; /* Copy over the nodes in the span list */ span = spans->head; @@ -2920,7 +2927,7 @@ H5S__hyper_copy_span_helper(H5S_hyper_span_info_t *spans, unsigned rank, /* Recurse to copy the 'down' spans, if there are any */ if(span->down != NULL) { - if(NULL == (new_down = H5S__hyper_copy_span_helper(span->down, rank - 1, op_gen))) + if(NULL == (new_down = H5S__hyper_copy_span_helper(span->down, rank - 1, op_info_i, op_gen))) HGOTO_ERROR(H5E_DATASPACE, H5E_CANTCOPY, NULL, "can't copy hyperslab spans") new_span->down = new_down; } /* end if */ @@ -2976,7 +2983,9 @@ H5S__hyper_copy_span(H5S_hyper_span_info_t *spans, unsigned rank) op_gen = H5S__hyper_get_op_gen(); /* Copy the hyperslab span tree */ - if(NULL == (ret_value = H5S__hyper_copy_span_helper(spans, rank, op_gen))) + /* Always use op_info[0] since we own this op_info, so there can be no + * simultaneous operations */ + if(NULL == (ret_value = H5S__hyper_copy_span_helper(spans, rank, 0, op_gen))) HGOTO_ERROR(H5E_DATASPACE, H5E_CANTCOPY, NULL, "can't copy hyperslab span tree") done: @@ -3315,8 +3324,9 @@ done: PURPOSE Helper routine to count the number of blocks in a span tree USAGE - hsize_t H5S__hyper_span_nblocks_helper(spans) + hsize_t H5S__hyper_span_nblocks_helper(spans, op_info_i, op_gen) H5S_hyper_span_info_t *spans; IN: Hyperslab span tree to count blocks of + unsigned op_info_i; IN: Index of op info to use uint64_t op_gen; IN: Operation generation RETURNS Number of blocks in span tree on success; negative on failure @@ -3328,7 +3338,8 @@ done: REVISION LOG --------------------------------------------------------------------------*/ static hsize_t -H5S__hyper_span_nblocks_helper(H5S_hyper_span_info_t *spans, uint64_t op_gen) +H5S__hyper_span_nblocks_helper(H5S_hyper_span_info_t *spans, unsigned op_info_i, + uint64_t op_gen) { hsize_t ret_value = 0; /* Return value */ @@ -3338,9 +3349,9 @@ H5S__hyper_span_nblocks_helper(H5S_hyper_span_info_t *spans, uint64_t op_gen) HDassert(spans); /* Check if the span tree was already counted */ - if(spans->op_gen == op_gen) + if(spans->op_info[op_info_i].op_gen == op_gen) /* Just return the # of blocks in the already counted span tree */ - ret_value = spans->u.nblocks; + ret_value = spans->op_info[op_info_i].u.nblocks; else { /* Count the number of elements in the span tree */ H5S_hyper_span_t *span; /* Hyperslab span */ @@ -3348,7 +3359,7 @@ H5S__hyper_span_nblocks_helper(H5S_hyper_span_info_t *spans, uint64_t op_gen) if(span->down) { while(span) { /* If there are down spans, add the total down span blocks */ - ret_value += H5S__hyper_span_nblocks_helper(span->down, op_gen); + ret_value += H5S__hyper_span_nblocks_helper(span->down, op_info_i, op_gen); /* Advance to next span */ span = span->next; @@ -3365,10 +3376,10 @@ H5S__hyper_span_nblocks_helper(H5S_hyper_span_info_t *spans, uint64_t op_gen) } /* end else */ /* Set the operation generation for this span tree, to avoid re-computing */ - spans->op_gen = op_gen; + spans->op_info[op_info_i].op_gen = op_gen; /* Hold a copy of the # of blocks */ - spans->u.nblocks = ret_value; + spans->op_info[op_info_i].u.nblocks = ret_value; } /* end else */ FUNC_LEAVE_NOAPI(ret_value) @@ -3406,7 +3417,10 @@ H5S__hyper_span_nblocks(H5S_hyper_span_info_t *spans) /* Acquire an operation generation value for this operation */ op_gen = H5S__hyper_get_op_gen(); - ret_value = H5S__hyper_span_nblocks_helper(spans, op_gen); + /* Count the blocks */ + /* Always use op_info[0] since we own this op_info, so there can be no + * simultaneous operations */ + ret_value = H5S__hyper_span_nblocks_helper(spans, 0, op_gen); } /* end if */ FUNC_LEAVE_NOAPI(ret_value) @@ -3674,7 +3688,7 @@ H5S__hyper_get_version_enc_size(const H5S_t *space, hsize_t block_count, uint32_ /* Determine the encoding size */ enc2 = H5S__hyper_get_enc_size_real(max2); - *enc_size = MAX(enc1, enc2); + *enc_size = (uint8_t)MAX(enc1, enc2); } /* end if */ else { hsize_t max_size = block_count; @@ -4251,6 +4265,9 @@ H5S__hyper_deserialize(H5S_t **space, const uint8_t **p) /* Decode version */ UINT32DECODE(pp, version); + if(version < H5S_HYPER_VERSION_1 || version > H5S_HYPER_VERSION_LATEST) + HGOTO_ERROR(H5E_DATASPACE, H5E_BADVALUE, FAIL, "bad version number for hyperslab selection") + if(version >= (uint32_t)H5S_HYPER_VERSION_2) { /* Decode flags */ flags = *(pp)++; @@ -5946,7 +5963,7 @@ H5S__hyper_add_span_element_helper(H5S_hyper_span_info_t *span_tree, /* Check if we've compared the 'stop' span's "down tree" to * this span's "down tree" already. */ - if(tmp_span->down->op_gen != op_gen) { + if(tmp_span->down->op_info[0].op_gen != op_gen) { if(H5S__hyper_cmp_spans(tmp_span->down, stop_span->down)) attempt_merge_spans = TRUE; @@ -5954,7 +5971,7 @@ H5S__hyper_add_span_element_helper(H5S_hyper_span_info_t *span_tree, /* (Because it wasn't the same as the 'stop' span's down tree * and we don't need to compare it again) */ - tmp_span->down->op_gen = op_gen; + tmp_span->down->op_info[0].op_gen = op_gen; } /* end if */ } /* end else */ @@ -6159,11 +6176,12 @@ done: PURPOSE Helper routine to detect intersections in span trees USAGE - hbool_t H5S__hyper_intersect_block_helper(spans, start, end) + hbool_t H5S__hyper_intersect_block_helper(spans, rank, start, end, op_info_i, op_gen) H5S_hyper_span_info_t *spans; IN: First span tree to operate with unsigned rank; IN: Number of dimensions for span tree hsize_t *start; IN: Starting coordinate for block hsize_t *end; IN: Ending coordinate for block + unsigned op_info_i; IN: Index of op info to use uint64_t op_gen; IN: Operation generation RETURN Non-negative (TRUE/FALSE) on success, can't fail @@ -6176,7 +6194,8 @@ done: --------------------------------------------------------------------------*/ static hbool_t H5S__hyper_intersect_block_helper(H5S_hyper_span_info_t *spans, - unsigned rank, const hsize_t *start, const hsize_t *end, uint64_t op_gen) + unsigned rank, const hsize_t *start, const hsize_t *end, unsigned op_info_i, + uint64_t op_gen) { hbool_t ret_value = FALSE; /* Return value */ @@ -6188,7 +6207,7 @@ H5S__hyper_intersect_block_helper(H5S_hyper_span_info_t *spans, HDassert(end); /* Check if we've already visited this span tree */ - if(spans->op_gen != op_gen) { + if(spans->op_info[op_info_i].op_gen != op_gen) { H5S_hyper_span_t *curr; /* Pointer to current span in 1st span tree */ unsigned u; /* Local index variable */ @@ -6221,7 +6240,7 @@ H5S__hyper_intersect_block_helper(H5S_hyper_span_info_t *spans, /* If there is an intersection in the "down" dimensions, * the span trees overlap. */ - if(H5S__hyper_intersect_block_helper(curr->down, rank - 1, start + 1, end + 1, op_gen)) + if(H5S__hyper_intersect_block_helper(curr->down, rank - 1, start + 1, end + 1, op_info_i, op_gen)) HGOTO_DONE(TRUE) /* No intersection in down dimensions, advance to next span */ @@ -6231,7 +6250,7 @@ H5S__hyper_intersect_block_helper(H5S_hyper_span_info_t *spans, } /* end while */ /* Set the tree's operation generation */ - spans->op_gen = op_gen; + spans->op_info[op_info_i].op_gen = op_gen; } /* end if */ /* Fall through with 'FALSE' return value */ @@ -6267,7 +6286,7 @@ H5S__hyper_intersect_block(const H5S_t *space, const hsize_t *start, const hsize { htri_t ret_value = FAIL; /* Return value */ - FUNC_ENTER_STATIC + FUNC_ENTER_STATIC_NOERR /* Sanity check */ HDassert(space); @@ -6363,7 +6382,9 @@ H5S__hyper_intersect_block(const H5S_t *space, const hsize_t *start, const hsize op_gen = H5S__hyper_get_op_gen(); /* Perform the span-by-span intersection check */ - ret_value = H5S__hyper_intersect_block_helper(space->select.sel_info.hslab->span_lst, space->extent.rank, start, end, op_gen); + /* Always use op_info[0] since we own this op_info, so there can be no + * simultaneous operations */ + ret_value = H5S__hyper_intersect_block_helper(space->select.sel_info.hslab->span_lst, space->extent.rank, start, end, 0, op_gen); } /* end else */ done: @@ -6377,10 +6398,11 @@ done: PURPOSE Helper routine to adjust offsets in span trees USAGE - void H5S__hyper_adjust_u_helper(spans, offset) + void H5S__hyper_adjust_u_helper(spans, rank, offset, op_info_i, op_gen) H5S_hyper_span_info_t *spans; IN: Span tree to operate with unsigned rank; IN: Number of dimensions for span tree const hsize_t *offset; IN: Offset to subtract + unsigned op_info_i; IN: Index of op info to use uint64_t op_gen; IN: Operation generation RETURNS None @@ -6393,7 +6415,7 @@ done: --------------------------------------------------------------------------*/ static void H5S__hyper_adjust_u_helper(H5S_hyper_span_info_t *spans, unsigned rank, - const hsize_t *offset, uint64_t op_gen) + const hsize_t *offset, unsigned op_info_i, uint64_t op_gen) { FUNC_ENTER_STATIC_NOERR @@ -6402,7 +6424,7 @@ H5S__hyper_adjust_u_helper(H5S_hyper_span_info_t *spans, unsigned rank, HDassert(offset); /* Check if we've already set this span tree */ - if(spans->op_gen != op_gen) { + if(spans->op_info[op_info_i].op_gen != op_gen) { H5S_hyper_span_t *span; /* Pointer to current span in span tree */ unsigned u; /* Local index variable */ @@ -6423,14 +6445,14 @@ H5S__hyper_adjust_u_helper(H5S_hyper_span_info_t *spans, unsigned rank, /* Recursively adjust spans in next dimension down */ if(span->down != NULL) - H5S__hyper_adjust_u_helper(span->down, rank - 1, offset + 1, op_gen); + H5S__hyper_adjust_u_helper(span->down, rank - 1, offset + 1, op_info_i, op_gen); /* Advance to next span in this dimension */ span = span->next; } /* end while */ /* Set the tree's operation generation */ - spans->op_gen = op_gen; + spans->op_info[op_info_i].op_gen = op_gen; } /* end if */ FUNC_LEAVE_NOAPI_VOID @@ -6458,36 +6480,50 @@ H5S__hyper_adjust_u_helper(H5S_hyper_span_info_t *spans, unsigned rank, static herr_t H5S__hyper_adjust_u(H5S_t *space, const hsize_t *offset) { + hbool_t non_zero_offset = FALSE; /* Whether any offset is non-zero */ + unsigned u; /* Local index variable */ + FUNC_ENTER_STATIC_NOERR /* Sanity check */ HDassert(space); HDassert(offset); - /* Subtract the offset from the "regular" coordinates, if they exist */ - /* (No need to rebuild the dimension info yet -QAK) */ - if(space->select.sel_info.hslab->diminfo_valid == H5S_DIMINFO_VALID_YES) { - unsigned u; /* Local index variable */ + /* Check for an all-zero offset vector */ + for(u = 0; u < space->extent.rank; u++) + if(0 != offset[u]) { + non_zero_offset = TRUE; + break; + } /* end if */ - for(u = 0; u < space->extent.rank; u++) { - HDassert(space->select.sel_info.hslab->diminfo.opt[u].start >= offset[u]); - space->select.sel_info.hslab->diminfo.opt[u].start -= offset[u]; + /* Only perform operation if the offset is non-zero */ + if(non_zero_offset) { + /* Subtract the offset from the "regular" coordinates, if they exist */ + /* (No need to rebuild the dimension info yet -QAK) */ + if(space->select.sel_info.hslab->diminfo_valid == H5S_DIMINFO_VALID_YES) { + for(u = 0; u < space->extent.rank; u++) { + HDassert(space->select.sel_info.hslab->diminfo.opt[u].start >= offset[u]); + space->select.sel_info.hslab->diminfo.opt[u].start -= offset[u]; - /* Adjust the low & high bounds */ - HDassert(space->select.sel_info.hslab->diminfo.low_bounds[u] >= offset[u]); - space->select.sel_info.hslab->diminfo.low_bounds[u] -= offset[u]; - space->select.sel_info.hslab->diminfo.high_bounds[u] -= offset[u]; - } /* end for */ - } /* end if */ + /* Adjust the low & high bounds */ + HDassert(space->select.sel_info.hslab->diminfo.low_bounds[u] >= offset[u]); + space->select.sel_info.hslab->diminfo.low_bounds[u] -= offset[u]; + space->select.sel_info.hslab->diminfo.high_bounds[u] -= offset[u]; + } /* end for */ + } /* end if */ - /* Subtract the offset from the span tree coordinates, if they exist */ - if(space->select.sel_info.hslab->span_lst) { - uint64_t op_gen; /* Operation generation value */ + /* Subtract the offset from the span tree coordinates, if they exist */ + if(space->select.sel_info.hslab->span_lst) { + uint64_t op_gen; /* Operation generation value */ - /* Acquire an operation generation value for this operation */ - op_gen = H5S__hyper_get_op_gen(); + /* Acquire an operation generation value for this operation */ + op_gen = H5S__hyper_get_op_gen(); - H5S__hyper_adjust_u_helper(space->select.sel_info.hslab->span_lst, space->extent.rank, offset, op_gen); + /* Perform adjustment */ + /* Always use op_info[0] since we own this op_info, so there can be no + * simultaneous operations */ + H5S__hyper_adjust_u_helper(space->select.sel_info.hslab->span_lst, space->extent.rank, offset, 0, op_gen); + } /* end if */ } /* end if */ FUNC_LEAVE_NOAPI(SUCCEED) @@ -6897,10 +6933,11 @@ done: PURPOSE Helper routine to adjust offsets in span trees USAGE - void H5S__hyper_adjust_s_helper(spans, offset) + void H5S__hyper_adjust_s_helper(spans, rank, offset, op_info_i, op_gen) H5S_hyper_span_info_t *spans; IN: Span tree to operate with unsigned rank; IN: Number of dimensions for span tree const hssize_t *offset; IN: Offset to subtract + unsigned op_info_i; IN: Index of op info to use uint64_t op_gen; IN: Operation generation RETURNS None @@ -6913,7 +6950,7 @@ done: --------------------------------------------------------------------------*/ static void H5S__hyper_adjust_s_helper(H5S_hyper_span_info_t *spans, unsigned rank, - const hssize_t *offset, uint64_t op_gen) + const hssize_t *offset, unsigned op_info_i, uint64_t op_gen) { FUNC_ENTER_STATIC_NOERR @@ -6922,7 +6959,7 @@ H5S__hyper_adjust_s_helper(H5S_hyper_span_info_t *spans, unsigned rank, HDassert(offset); /* Check if we've already set this span tree */ - if(spans->op_gen != op_gen) { + if(spans->op_info[op_info_i].op_gen != op_gen) { H5S_hyper_span_t *span; /* Pointer to current span in span tree */ unsigned u; /* Local index variable */ @@ -6943,14 +6980,14 @@ H5S__hyper_adjust_s_helper(H5S_hyper_span_info_t *spans, unsigned rank, /* Recursively adjust spans in next dimension down */ if(span->down != NULL) - H5S__hyper_adjust_s_helper(span->down, rank - 1, offset + 1, op_gen); + H5S__hyper_adjust_s_helper(span->down, rank - 1, offset + 1, op_info_i, op_gen); /* Advance to next span in this dimension */ span = span->next; } /* end while */ /* Set the tree's operation generation */ - spans->op_gen = op_gen; + spans->op_info[op_info_i].op_gen = op_gen; } /* end if */ FUNC_LEAVE_NOAPI_VOID @@ -6959,11 +6996,11 @@ H5S__hyper_adjust_s_helper(H5S_hyper_span_info_t *spans, unsigned rank, /*-------------------------------------------------------------------------- NAME - H5S_hyper_adjust_s + H5S__hyper_adjust_s PURPOSE Adjust a hyperslab selection by subtracting an offset USAGE - herr_t H5S_hyper_adjust_s(space,offset) + herr_t H5S__hyper_adjust_s(space,offset) H5S_t *space; IN/OUT: Pointer to dataspace to adjust const hssize_t *offset; IN: Offset to subtract RETURNS @@ -6975,8 +7012,8 @@ H5S__hyper_adjust_s_helper(H5S_hyper_span_info_t *spans, unsigned rank, EXAMPLES REVISION LOG --------------------------------------------------------------------------*/ -herr_t -H5S_hyper_adjust_s(H5S_t *space, const hssize_t *offset) +static herr_t +H5S__hyper_adjust_s(H5S_t *space, const hssize_t *offset) { hbool_t non_zero_offset = FALSE; /* Whether any offset is non-zero */ unsigned u; /* Local index variable */ @@ -7018,54 +7055,16 @@ H5S_hyper_adjust_s(H5S_t *space, const hssize_t *offset) /* Acquire an operation generation value for this operation */ op_gen = H5S__hyper_get_op_gen(); - H5S__hyper_adjust_s_helper(space->select.sel_info.hslab->span_lst, space->extent.rank, offset, op_gen); + /* Perform the adjustment */ + /* Always use op_info[0] since we own this op_info, so there can be no + * simultaneous operations */ + H5S__hyper_adjust_s_helper(space->select.sel_info.hslab->span_lst, space->extent.rank, offset, 0, op_gen); } /* end if */ } /* end if */ done: FUNC_LEAVE_NOAPI(ret_value) -} /* end H5S_hyper_adjust_s() */ - -/*-------------------------------------------------------------------------- - NAME - H5Shyper_adjust_s - PURPOSE - Adjust a hyperslab selection by subtracting an offset - USAGE - herr_t H5Shyper_adjust_s(space_id,offset) - hid_t space_id; IN: ID of the dataspace to adjust - const hssize_t *offset; IN: Offset to subtract - RETURNS - Non-negative on success, negative on failure - DESCRIPTION - Moves a hyperslab selection by subtracting an offset from it. - GLOBAL VARIABLES - COMMENTS, BUGS, ASSUMPTIONS - EXAMPLES - REVISION LOG ---------------------------------------------------------------------------*/ -herr_t -H5Shyper_adjust_s(hid_t space_id, const hssize_t *offset) -{ - H5S_t *space; - herr_t ret_value = SUCCEED; /* Return value */ - - FUNC_ENTER_API(FAIL) - H5TRACE2("e", "i*Hs", space_id, offset); - - if(NULL == (space = (H5S_t *)H5I_object_verify(space_id, H5I_DATASPACE))) - HGOTO_ERROR(H5E_DATASPACE, H5E_BADTYPE, FAIL, "not a dataspace") - if(H5S_GET_SELECT_TYPE(space) != H5S_SEL_HYPERSLABS) - HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a hyperslab selection") - if(NULL == offset) - HGOTO_ERROR(H5E_DATASPACE, H5E_BADTYPE, FAIL, "NULL offset pointer") - - if(H5S_hyper_adjust_s(space, offset) < 0) - HGOTO_ERROR(H5E_DATASPACE, H5E_CANTSET, FAIL, "can't adjust selection") - -done: - FUNC_LEAVE_API(ret_value) -} /* end H5Shyper_adjust_s() */ +} /* end H5S__hyper_adjust_s() */ /*-------------------------------------------------------------------------- @@ -7111,7 +7110,7 @@ H5S_hyper_normalize_offset(H5S_t *space, hssize_t *old_offset) } /* end for */ /* Call the 'adjust' routine */ - if(H5S_hyper_adjust_s(space, space->select.offset) < 0) + if(H5S__hyper_adjust_s(space, space->select.offset) < 0) HGOTO_ERROR(H5E_DATASPACE, H5E_CANTSET, FAIL, "can't adjust selection") /* Zero out the selection offset */ @@ -7159,7 +7158,7 @@ H5S_hyper_denormalize_offset(H5S_t *space, const hssize_t *old_offset) HDassert(H5S_GET_SELECT_TYPE(space) == H5S_SEL_HYPERSLABS); /* Call the 'adjust' routine */ - if(H5S_hyper_adjust_s(space, old_offset) < 0) + if(H5S__hyper_adjust_s(space, old_offset) < 0) HGOTO_ERROR(H5E_DATASPACE, H5E_CANTSET, FAIL, "can't adjust selection") /* Copy the selection offset over */ @@ -8281,8 +8280,9 @@ done: PURPOSE Count the number of elements in a span tree USAGE - hsize_t H5S__hyper_spans_nelem_helper(spans, op_gen) + hsize_t H5S__hyper_spans_nelem_helper(spans, op_info_i, op_gen) const H5S_hyper_span_info_t *spans; IN: Hyperslan span tree to count elements of + unsigned op_info_i; IN: Index of op info to use uint64_t op_gen; IN: Operation generation RETURNS Number of elements in span tree on success; negative on failure @@ -8294,7 +8294,8 @@ done: REVISION LOG --------------------------------------------------------------------------*/ static hsize_t -H5S__hyper_spans_nelem_helper(H5S_hyper_span_info_t *spans, uint64_t op_gen) +H5S__hyper_spans_nelem_helper(H5S_hyper_span_info_t *spans, unsigned op_info_i, + uint64_t op_gen) { hsize_t ret_value = 0; /* Return value */ @@ -8304,9 +8305,9 @@ H5S__hyper_spans_nelem_helper(H5S_hyper_span_info_t *spans, uint64_t op_gen) HDassert(spans); /* Check if the span tree was already counted */ - if(spans->op_gen == op_gen) + if(spans->op_info[op_info_i].op_gen == op_gen) /* Just return the # of elements in the already counted span tree */ - ret_value = spans->u.nelmts; + ret_value = spans->op_info[op_info_i].u.nelmts; else { /* Count the number of elements in the span tree */ const H5S_hyper_span_t *span; /* Hyperslab span */ @@ -8328,7 +8329,7 @@ H5S__hyper_spans_nelem_helper(H5S_hyper_span_info_t *spans, uint64_t op_gen) nelmts = (span->high - span->low) + 1; /* Multiply the size of this span by the total down span elements */ - ret_value += nelmts * H5S__hyper_spans_nelem_helper(span->down, op_gen); + ret_value += nelmts * H5S__hyper_spans_nelem_helper(span->down, op_info_i, op_gen); /* Advance to next span */ span = span->next; @@ -8336,10 +8337,10 @@ H5S__hyper_spans_nelem_helper(H5S_hyper_span_info_t *spans, uint64_t op_gen) } /* end else */ /* Set the operation generation for this span tree, to avoid re-computing */ - spans->op_gen = op_gen; + spans->op_info[op_info_i].op_gen = op_gen; /* Hold a copy of the # of elements */ - spans->u.nelmts = ret_value; + spans->op_info[op_info_i].u.nelmts = ret_value; } /* end else */ FUNC_LEAVE_NOAPI(ret_value) @@ -8378,7 +8379,9 @@ H5S__hyper_spans_nelem(H5S_hyper_span_info_t *spans) op_gen = H5S__hyper_get_op_gen(); /* Count the number of elements in the span tree */ - ret_value = H5S__hyper_spans_nelem_helper(spans, op_gen); + /* Always use op_info[0] since we own this op_info, so there can be no + * simultaneous operations */ + ret_value = H5S__hyper_spans_nelem_helper(spans, 0, op_gen); FUNC_LEAVE_NOAPI(ret_value) } /* end H5S__hyper_spans_nelem() */ @@ -8808,10 +8811,8 @@ H5S__hyper_update_diminfo(H5S_t *space, H5S_seloper_t op, (It can be recovered with regular selection) USAGE herr_t H5S__hyper_rebuild_helper(space) - const H5S_hyper_span_t *span; IN: Portion of span tree to check - H5S_hyper_dim_t span_slab[]; OUT: Rebuilt section of hyperslab description - unsigned rank; IN: Current dimension to work on - uint64_t op_gen; IN: Operation generation + const H5S_hyper_span_t *spans; IN: Portion of span tree to check + H5S_hyper_dim_t span_slab_info[]; OUT: Rebuilt section of hyperslab description RETURNS TRUE/FALSE for hyperslab selection rebuilt DESCRIPTION @@ -10833,6 +10834,7 @@ done: --------------------------------------------------------------------------*/ static herr_t H5S__hyper_proj_int_build_proj(H5S_hyper_project_intersect_ud_t *udata) { + H5S_hyper_span_info_t *copied_span_info = NULL; /* Temporary span info pointer */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_STATIC @@ -10852,15 +10854,15 @@ H5S__hyper_proj_int_build_proj(H5S_hyper_project_intersect_ud_t *udata) { /* If we will run out of elements to skip in this span, * advance to the first not fully skipped span and break * out of this loop (start moving downwards) */ - if(udata->skip < H5S__hyper_spans_nelem_helper(udata->ds_span[udata->depth]->down, udata->op_gen) + if(udata->skip < H5S__hyper_spans_nelem_helper(udata->ds_span[udata->depth]->down, 0, udata->op_gen) * (udata->ds_span[udata->depth]->high - udata->ds_low[udata->depth] + 1)) { - udata->ds_low[udata->depth] += udata->skip / udata->ds_span[udata->depth]->down->u.nelmts; - udata->skip %= udata->ds_span[udata->depth]->down->u.nelmts; + udata->ds_low[udata->depth] += udata->skip / udata->ds_span[udata->depth]->down->op_info[0].u.nelmts; + udata->skip %= udata->ds_span[udata->depth]->down->op_info[0].u.nelmts; break; } /* end if */ /* Skip over this entire span */ - udata->skip -= udata->ds_span[udata->depth]->down->u.nelmts + udata->skip -= udata->ds_span[udata->depth]->down->op_info[0].u.nelmts * (udata->ds_span[udata->depth]->high - udata->ds_low[udata->depth] + 1); } /* end if */ } /* end if */ @@ -10919,15 +10921,15 @@ H5S__hyper_proj_int_build_proj(H5S_hyper_project_intersect_ud_t *udata) { /* If we will run out of elements to skip in this span, * advance to the first not fully skipped span and * continue down */ - if(udata->skip < H5S__hyper_spans_nelem_helper(udata->ds_span[udata->depth]->down, udata->op_gen) + if(udata->skip < H5S__hyper_spans_nelem_helper(udata->ds_span[udata->depth]->down, 0, udata->op_gen) * (udata->ds_span[udata->depth]->high - udata->ds_low[udata->depth] + 1)) { - udata->ds_low[udata->depth] += udata->skip / udata->ds_span[udata->depth]->down->u.nelmts; - udata->skip %= udata->ds_span[udata->depth]->down->u.nelmts; + udata->ds_low[udata->depth] += udata->skip / udata->ds_span[udata->depth]->down->op_info[0].u.nelmts; + udata->skip %= udata->ds_span[udata->depth]->down->op_info[0].u.nelmts; break; } /* end if */ /* Skip over this entire span */ - udata->skip -= udata->ds_span[udata->depth]->down->u.nelmts + udata->skip -= udata->ds_span[udata->depth]->down->op_info[0].u.nelmts * (udata->ds_span[udata->depth]->high - udata->ds_low[udata->depth] + 1); /* Advance to next span */ @@ -10972,27 +10974,59 @@ H5S__hyper_proj_int_build_proj(H5S_hyper_project_intersect_ud_t *udata) { * any complete spans, advance to the first not fully added * span, and break out of this loop (start moving downwards) */ - if(udata->nelem < H5S__hyper_spans_nelem_helper(udata->ds_span[udata->depth]->down, udata->op_gen) + if(udata->nelem < H5S__hyper_spans_nelem_helper(udata->ds_span[udata->depth]->down, 0, udata->op_gen) * (udata->ds_span[udata->depth]->high - udata->ds_low[udata->depth] + 1)) { - if(udata->nelem >= udata->ds_span[udata->depth]->down->u.nelmts) { - if(H5S__hyper_append_span(&udata->ps_span_info[udata->depth], - udata->ds_rank - udata->depth, udata->ds_low[udata->depth], - udata->ds_low[udata->depth] + (udata->nelem / udata->ds_span[udata->depth]->down->u.nelmts) - 1, - udata->ds_span[udata->depth]->down) < 0) - HGOTO_ERROR(H5E_DATASPACE, H5E_CANTAPPEND, FAIL, "can't allocate hyperslab span") - udata->ds_low[udata->depth] += udata->nelem / udata->ds_span[udata->depth]->down->u.nelmts; - udata->nelem %= udata->ds_span[udata->depth]->down->u.nelmts; + if(udata->nelem >= udata->ds_span[udata->depth]->down->op_info[0].u.nelmts) { + if(udata->share_selection) { + if(H5S__hyper_append_span(&udata->ps_span_info[udata->depth], + udata->ds_rank - udata->depth, udata->ds_low[udata->depth], + udata->ds_low[udata->depth] + (udata->nelem / udata->ds_span[udata->depth]->down->op_info[0].u.nelmts) - 1, + udata->ds_span[udata->depth]->down) < 0) + HGOTO_ERROR(H5E_DATASPACE, H5E_CANTAPPEND, FAIL, "can't allocate hyperslab span") + } /* end if */ + else { + /* If we're not sharing the destination space's + * spans, we must copy it first (then release it + * afterwards) */ + if(NULL == (copied_span_info = H5S__hyper_copy_span_helper(udata->ds_span[udata->depth]->down, udata->ds_rank - udata->depth, 1, udata->op_gen))) + HGOTO_ERROR(H5E_DATASPACE, H5E_CANTCOPY, FAIL, "can't copy destination spans") + if(H5S__hyper_append_span(&udata->ps_span_info[udata->depth], + udata->ds_rank - udata->depth, udata->ds_low[udata->depth], + udata->ds_low[udata->depth] + (udata->nelem / udata->ds_span[udata->depth]->down->op_info[0].u.nelmts) - 1, + copied_span_info) < 0) + HGOTO_ERROR(H5E_DATASPACE, H5E_CANTAPPEND, FAIL, "can't allocate hyperslab span") + H5S__hyper_free_span_info(copied_span_info); + copied_span_info = NULL; + } /* end else */ + udata->ds_low[udata->depth] += udata->nelem / udata->ds_span[udata->depth]->down->op_info[0].u.nelmts; + udata->nelem %= udata->ds_span[udata->depth]->down->op_info[0].u.nelmts; } /* end if */ break; } /* end if */ /* Append span tree for entire span */ - if(H5S__hyper_append_span(&udata->ps_span_info[udata->depth], + if(udata->share_selection) { + if(H5S__hyper_append_span(&udata->ps_span_info[udata->depth], udata->ds_rank - udata->depth, udata->ds_low[udata->depth], udata->ds_span[udata->depth]->high, udata->ds_span[udata->depth]->down) < 0) HGOTO_ERROR(H5E_DATASPACE, H5E_CANTAPPEND, FAIL, "can't allocate hyperslab span") - udata->nelem -= udata->ds_span[udata->depth]->down->u.nelmts + } /* end if */ + else { + /* If we're not sharing the destination space's + * spans, we must copy it first (then release it + * afterwards) */ + if(NULL == (copied_span_info = H5S__hyper_copy_span_helper(udata->ds_span[udata->depth]->down, udata->ds_rank - udata->depth, 1, udata->op_gen))) + HGOTO_ERROR(H5E_DATASPACE, H5E_CANTCOPY, FAIL, "can't copy destination spans") + if(H5S__hyper_append_span(&udata->ps_span_info[udata->depth], + udata->ds_rank - udata->depth, udata->ds_low[udata->depth], + udata->ds_span[udata->depth]->high, + copied_span_info) < 0) + HGOTO_ERROR(H5E_DATASPACE, H5E_CANTAPPEND, FAIL, "can't allocate hyperslab span") + H5S__hyper_free_span_info(copied_span_info); + copied_span_info = NULL; + } /* end else */ + udata->nelem -= udata->ds_span[udata->depth]->down->op_info[0].u.nelmts * (udata->ds_span[udata->depth]->high - udata->ds_low[udata->depth] + 1); } /* end if */ } /* end if */ @@ -11063,27 +11097,59 @@ H5S__hyper_proj_int_build_proj(H5S_hyper_project_intersect_ud_t *udata) { * span and continue down */ HDassert(udata->ds_low[udata->depth] <= udata->ds_span[udata->depth]->high); - if(udata->nelem < H5S__hyper_spans_nelem_helper(udata->ds_span[udata->depth]->down, udata->op_gen) + if(udata->nelem < H5S__hyper_spans_nelem_helper(udata->ds_span[udata->depth]->down, 0, udata->op_gen) * (udata->ds_span[udata->depth]->high - udata->ds_low[udata->depth] + 1)) { - if(udata->nelem >= udata->ds_span[udata->depth]->down->u.nelmts) { - if(H5S__hyper_append_span(&udata->ps_span_info[udata->depth], - udata->ds_rank - udata->depth, udata->ds_low[udata->depth], - udata->ds_low[udata->depth] + (udata->nelem / udata->ds_span[udata->depth]->down->u.nelmts) - 1, - udata->ds_span[udata->depth]->down) < 0) - HGOTO_ERROR(H5E_DATASPACE, H5E_CANTAPPEND, FAIL, "can't allocate hyperslab span") - udata->ds_low[udata->depth] += udata->nelem / udata->ds_span[udata->depth]->down->u.nelmts; - udata->nelem %= udata->ds_span[udata->depth]->down->u.nelmts; + if(udata->nelem >= udata->ds_span[udata->depth]->down->op_info[0].u.nelmts) { + if(udata->share_selection) { + if(H5S__hyper_append_span(&udata->ps_span_info[udata->depth], + udata->ds_rank - udata->depth, udata->ds_low[udata->depth], + udata->ds_low[udata->depth] + (udata->nelem / udata->ds_span[udata->depth]->down->op_info[0].u.nelmts) - 1, + udata->ds_span[udata->depth]->down) < 0) + HGOTO_ERROR(H5E_DATASPACE, H5E_CANTAPPEND, FAIL, "can't allocate hyperslab span") + } /* end if */ + else { + /* If we're not sharing the destination space's + * spans, we must copy it first (then release it + * afterwards) */ + if(NULL == (copied_span_info = H5S__hyper_copy_span_helper(udata->ds_span[udata->depth]->down, udata->ds_rank - udata->depth, 1, udata->op_gen))) + HGOTO_ERROR(H5E_DATASPACE, H5E_CANTCOPY, FAIL, "can't copy destination spans") + if(H5S__hyper_append_span(&udata->ps_span_info[udata->depth], + udata->ds_rank - udata->depth, udata->ds_low[udata->depth], + udata->ds_low[udata->depth] + (udata->nelem / udata->ds_span[udata->depth]->down->op_info[0].u.nelmts) - 1, + copied_span_info) < 0) + HGOTO_ERROR(H5E_DATASPACE, H5E_CANTAPPEND, FAIL, "can't allocate hyperslab span") + H5S__hyper_free_span_info(copied_span_info); + copied_span_info = NULL; + } /* end else */ + udata->ds_low[udata->depth] += udata->nelem / udata->ds_span[udata->depth]->down->op_info[0].u.nelmts; + udata->nelem %= udata->ds_span[udata->depth]->down->op_info[0].u.nelmts; } /* end if */ break; } /* end if */ /* Append span tree for entire span */ - if(H5S__hyper_append_span(&udata->ps_span_info[udata->depth], + if(udata->share_selection) { + if(H5S__hyper_append_span(&udata->ps_span_info[udata->depth], udata->ds_rank - udata->depth, udata->ds_low[udata->depth], udata->ds_span[udata->depth]->high, udata->ds_span[udata->depth]->down) < 0) HGOTO_ERROR(H5E_DATASPACE, H5E_CANTAPPEND, FAIL, "can't allocate hyperslab span") - udata->nelem -= udata->ds_span[udata->depth]->down->u.nelmts + } /* end if */ + else { + /* If we're not sharing the destination space's + * spans, we must copy it first (then release it + * afterwards) */ + if(NULL == (copied_span_info = H5S__hyper_copy_span_helper(udata->ds_span[udata->depth]->down, udata->ds_rank - udata->depth, 1, udata->op_gen))) + HGOTO_ERROR(H5E_DATASPACE, H5E_CANTCOPY, FAIL, "can't copy destination spans") + if(H5S__hyper_append_span(&udata->ps_span_info[udata->depth], + udata->ds_rank - udata->depth, udata->ds_low[udata->depth], + udata->ds_span[udata->depth]->high, + copied_span_info) < 0) + HGOTO_ERROR(H5E_DATASPACE, H5E_CANTAPPEND, FAIL, "can't allocate hyperslab span") + H5S__hyper_free_span_info(copied_span_info); + copied_span_info = NULL; + } /* end else */ + udata->nelem -= udata->ds_span[udata->depth]->down->op_info[0].u.nelmts * (udata->ds_span[udata->depth]->high - udata->ds_low[udata->depth] + 1); /* Advance to next span */ @@ -11128,6 +11194,13 @@ H5S__hyper_proj_int_build_proj(H5S_hyper_project_intersect_ud_t *udata) { udata->ps_clean_bitmap = 0; done: + /* Cleanup on failure */ + if(copied_span_info) { + HDassert(ret_value < 0); + H5S__hyper_free_span_info(copied_span_info); + copied_span_info = NULL; + } /* end if */ + FUNC_LEAVE_NOAPI(ret_value) } /* end H5S__hyper_proj_int_build_proj() */ @@ -11217,7 +11290,7 @@ H5S__hyper_proj_int_iterate(const H5S_hyper_span_info_t *ss_span_info, /* Add skipped elements if there's a pre-gap */ if(ss_low < sis_low) { low = sis_low; - H5S_HYPER_PROJ_INT_ADD_SKIP(udata, H5S__hyper_spans_nelem_helper(ss_span->down, udata->op_gen) * (sis_low - ss_low), FAIL); + H5S_HYPER_PROJ_INT_ADD_SKIP(udata, H5S__hyper_spans_nelem_helper(ss_span->down, 0, udata->op_gen) * (sis_low - ss_low), FAIL); } /* end if */ else low = ss_low; @@ -11273,7 +11346,7 @@ H5S__hyper_proj_int_iterate(const H5S_hyper_span_info_t *ss_span_info, if(ss_span->high < sis_low) { /* Add skipped elements */ if(ss_span->down) - H5S_HYPER_PROJ_INT_ADD_SKIP(udata, H5S__hyper_spans_nelem_helper(ss_span->down, udata->op_gen) * (ss_span->high - ss_low + 1), FAIL); + H5S_HYPER_PROJ_INT_ADD_SKIP(udata, H5S__hyper_spans_nelem_helper(ss_span->down, 0, udata->op_gen) * (ss_span->high - ss_low + 1), FAIL); else H5S_HYPER_PROJ_INT_ADD_SKIP(udata, ss_span->high - ss_low + 1, FAIL); @@ -11295,10 +11368,10 @@ H5S__hyper_proj_int_iterate(const H5S_hyper_span_info_t *ss_span_info, if(ss_span && !((depth == 0) && (u == count - 1))) { /* Count remaining elements in ss_span_info */ if(ss_span->down) { - H5S_HYPER_PROJ_INT_ADD_SKIP(udata, H5S__hyper_spans_nelem_helper(ss_span->down, udata->op_gen) * (ss_span->high - ss_low + 1), FAIL); + H5S_HYPER_PROJ_INT_ADD_SKIP(udata, H5S__hyper_spans_nelem_helper(ss_span->down, 0, udata->op_gen) * (ss_span->high - ss_low + 1), FAIL); ss_span = ss_span->next; while(ss_span) { - H5S_HYPER_PROJ_INT_ADD_SKIP(udata, H5S__hyper_spans_nelem_helper(ss_span->down, udata->op_gen) * (ss_span->high - ss_span->low + 1), FAIL); + H5S_HYPER_PROJ_INT_ADD_SKIP(udata, H5S__hyper_spans_nelem_helper(ss_span->down, 0, udata->op_gen) * (ss_span->high - ss_span->low + 1), FAIL); ss_span = ss_span->next; } /* end while */ } /* end if */ @@ -11356,7 +11429,7 @@ H5S__hyper_proj_int_iterate(const H5S_hyper_span_info_t *ss_span_info, } /* end if */ else if(depth > 0) /* Just count skipped elements */ - H5S_HYPER_PROJ_INT_ADD_SKIP(udata, H5S__hyper_spans_nelem_helper((H5S_hyper_span_info_t *)ss_span_info, udata->op_gen) * count, FAIL); /* Casting away const OK -NAF */ + H5S_HYPER_PROJ_INT_ADD_SKIP(udata, H5S__hyper_spans_nelem_helper((H5S_hyper_span_info_t *)ss_span_info, 0, udata->op_gen) * count, FAIL); /* Casting away const OK -NAF */ /* Clean up if we are done */ if(depth == 0) { @@ -11391,11 +11464,12 @@ done: src_intersect_space within the selection of src_space as a selection within the selection of dst_space USAGE - herr_t H5S__hyper_project_intersection(src_space,dst_space,src_intersect_space,proj_space) + herr_t H5S__hyper_project_intersection(src_space,dst_space,src_intersect_space,proj_space,share_selection) H5S_t *src_space; IN: Selection that is mapped to dst_space, and intersected with src_intersect_space H5S_t *dst_space; IN: Selection that is mapped to src_space, and which contains the result H5S_t *src_intersect_space; IN: Selection whose intersection with src_space is projected to dst_space to obtain the result H5S_t *proj_space; OUT: Will contain the result (intersection of src_intersect_space and src_space projected from src_space to dst_space) after the operation + hbool_t share_selection; IN: Whether we are allowed to share structures inside dst_space with proj_space RETURNS Non-negative on success/Negative on failure. DESCRIPTION @@ -11414,7 +11488,8 @@ done: --------------------------------------------------------------------------*/ herr_t H5S__hyper_project_intersection(const H5S_t *src_space, const H5S_t *dst_space, - const H5S_t *src_intersect_space, H5S_t *proj_space) + const H5S_t *src_intersect_space, H5S_t *proj_space, + hbool_t share_selection) { H5S_hyper_project_intersect_ud_t udata; /* User data for subroutines */ const H5S_hyper_span_info_t *ss_span_info; @@ -11431,7 +11506,7 @@ H5S__hyper_project_intersection(const H5S_t *src_space, const H5S_t *dst_space, HDassert(src_intersect_space); HDassert(proj_space); - /* Assert that src_space and src_intersect_space have same extent and there + /* Assert that src_space and src_intersect_space have same rank and there * are no point selections */ HDassert(H5S_GET_EXTENT_NDIMS(src_space) == H5S_GET_EXTENT_NDIMS(src_intersect_space)); HDassert(H5S_GET_SELECT_NPOINTS(src_space) == H5S_GET_SELECT_NPOINTS(dst_space)); @@ -11485,12 +11560,14 @@ H5S__hyper_project_intersection(const H5S_t *src_space, const H5S_t *dst_space, HGOTO_ERROR(H5E_DATASPACE, H5E_UNINITIALIZED, FAIL, "can't construct span tree for source intersect hyperslab selection") /* Initialize udata */ + /* We will use op_info[0] for nelem and op_info[1] for copied spans */ HDmemset(&udata, 0, sizeof(udata)); udata.ds_span[0] = ds_span_info->head; udata.ds_low[0] = udata.ds_span[0]->low; udata.ss_rank = H5S_GET_EXTENT_NDIMS(src_space); udata.ds_rank = H5S_GET_EXTENT_NDIMS(dst_space); udata.op_gen = H5S__hyper_get_op_gen(); + udata.share_selection = share_selection; /* Iterate over selections and build projected span tree */ if(H5S__hyper_proj_int_iterate(ss_span_info, src_intersect_space->select.sel_info.hslab->span_lst, 1, 0, &udata) < 0) |