/* * Copyright (C) 1998 NCSA * All rights reserved. * * Programmer: Quincey Koziol * Friday, May 29, 1998 * * Purpose: Dataspace functions. */ #include #include #include #include #include #include /* Interface initialization */ #define PABLO_MASK H5S_select_mask #define INTERFACE_INIT H5S_select_init static intn interface_initialize_g = FALSE; static herr_t H5S_select_init(void); static void H5S_select_term(void); /*-------------------------------------------------------------------------- NAME H5S_select_init PURPOSE Initialize selection interface USAGE herr_t H5S_select_init(void) RETURNS SUCCEED/FAIL DESCRIPTION GLOBAL VARIABLES COMMENTS, BUGS, ASSUMPTIONS EXAMPLES REVISION LOG --------------------------------------------------------------------------*/ herr_t H5S_select_init (void) { herr_t ret_value = SUCCEED; FUNC_ENTER (H5S_select_init, FAIL); /* Register the atexit function for this (sub)interface */ ret_value = H5_add_exit(&H5S_select_term); FUNC_LEAVE(ret_value); } /*-------------------------------------------------------------------------- NAME H5S_select_term PURPOSE Terminate various H5S selection objects and free lists USAGE void H5S_select_term() RETURNS SUCCEED/FAIL DESCRIPTION Release the selection resources allocated. GLOBAL VARIABLES COMMENTS, BUGS, ASSUMPTIONS Can't report errors... EXAMPLES REVISION LOG --------------------------------------------------------------------------*/ static void H5S_select_term(void) { } /*-------------------------------------------------------------------------- NAME H5S_select_copy PURPOSE Copy a selection from one dataspace to another USAGE herr_t H5S_select_copy(dst, src) H5S_t *dst; OUT: Pointer to the destination dataspace H5S_t *src; IN: Pointer to the source dataspace RETURNS SUCCEED/FAIL DESCRIPTION Copies all the selection information (include offset) from the source dataspace to the destination dataspace. GLOBAL VARIABLES COMMENTS, BUGS, ASSUMPTIONS EXAMPLES REVISION LOG --------------------------------------------------------------------------*/ herr_t H5S_select_copy (H5S_t *dst, const H5S_t *src) { herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER (H5S_select_copy, FAIL); /* Check args */ assert(dst); assert(src); /* Copy regular fields */ dst->select=src->select; /* Need to copy order information still */ /* Copy offset information */ if (NULL==(dst->select.offset = H5MM_calloc(src->extent.u.simple.rank*sizeof(hssize_t)))) { HRETURN_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed"); } if(src->select.offset!=NULL) HDmemcpy(dst->select.offset,src->select.offset,(src->extent.u.simple.rank*sizeof(hssize_t))); /* Perform correct type of copy based on the type of selection */ switch (src->extent.type) { case H5S_SCALAR: /*nothing needed */ break; case H5S_SIMPLE: /* Deep copy extra stuff */ switch(src->select.type) { case H5S_SEL_NONE: case H5S_SEL_ALL: /*nothing needed */ break; case H5S_SEL_POINTS: ret_value=H5S_point_copy(dst,src); break; case H5S_SEL_HYPERSLABS: ret_value=H5S_hyper_copy(dst,src); break; default: assert("unknown selection type" && 0); break; } /* end switch */ break; case H5S_COMPLEX: /*void */ break; default: assert("unknown data space type" && 0); break; } FUNC_LEAVE (SUCCEED); } /* H5S_select_copy() */ /*-------------------------------------------------------------------------- NAME H5S_select_release PURPOSE Release selection information for a dataspace USAGE herr_t H5S_select_release(space) H5S_t *space; IN: Pointer to dataspace RETURNS SUCCEED/FAIL DESCRIPTION Releases all selection information for a dataspace GLOBAL VARIABLES COMMENTS, BUGS, ASSUMPTIONS EXAMPLES REVISION LOG --------------------------------------------------------------------------*/ herr_t H5S_select_release (H5S_t *space) { herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER (H5S_select_release, FAIL); /* Check args */ assert (space); switch(space->select.type) { case H5S_SEL_POINTS: /* Sequence of points selected */ ret_value=H5S_point_release(space); break; case H5S_SEL_HYPERSLABS: /* Hyperslab selection defined */ ret_value=H5S_hyper_release(space); break; case H5S_SEL_ALL: /* Entire extent selected */ ret_value=H5S_all_release(space); break; case H5S_SEL_NONE: /* Nothing selected */ break; case H5S_SEL_ERROR: case H5S_SEL_N: break; } /* Reset type of selection to "all" */ space->select.type=H5S_SEL_ALL; FUNC_LEAVE (ret_value); } /* H5S_select_release() */ /*-------------------------------------------------------------------------- NAME H5Sselect_hyperslab PURPOSE Specify a hyperslab to combine with the current hyperslab selection USAGE herr_t H5Sselect_hyperslab(dsid, op, start, stride, count, block) hid_t dsid; IN: Dataspace ID of selection to modify H5S_seloper_t op; IN: Operation to perform on current selection const hssize_t *start; IN: Offset of start of hyperslab const hssize_t *stride; IN: Hyperslab stride const hssize_t *count; IN: Number of blocks included in hyperslab const hssize_t *block; IN: Size of block in hyperslab RETURNS SUCCEED/FAIL DESCRIPTION Combines a hyperslab selection with the current selection for a dataspace. If the current selection is not a hyperslab, it is freed and the hyperslab parameters passed in are combined with the H5S_SEL_ALL hyperslab (ie. a selection composing the entire current extent). Currently, only the H5S_SELECT_SET operation is supported. If STRIDE or BLOCK is NULL, they are assumed to be set to all '1'. GLOBAL VARIABLES COMMENTS, BUGS, ASSUMPTIONS EXAMPLES REVISION LOG --------------------------------------------------------------------------*/ herr_t H5Sselect_hyperslab(hid_t space_id, H5S_seloper_t op, const hssize_t start[/*space_id*/], const hsize_t _stride[/*space_id*/], const hsize_t count[/*space_id*/], const hsize_t _block[/*space_id*/]) { H5S_t *space = NULL; /* Dataspace to modify selection of */ FUNC_ENTER (H5Sselect_hyperslab, FAIL); H5TRACE6("e","iSs*[a0]Hs*[a0]h*[a0]h*[a0]h",space_id,op,start,_stride, count,_block); /* Check args */ if (H5_DATASPACE != H5I_group(space_id) || NULL == (space=H5I_object(space_id))) { HRETURN_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a data space"); } if(start==NULL || count==NULL) { HRETURN_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "hyperslab not specified"); } if(op!=H5S_SELECT_SET) { HRETURN_ERROR(H5E_ARGS, H5E_UNSUPPORTED, FAIL, "operations other than H5S_SELECT_SET not supported currently"); } if (H5S_select_hyperslab(space, op, start, _stride, count, _block)<0) { HRETURN_ERROR(H5E_DATASPACE, H5E_CANTINIT, FAIL, "unable to set hyperslab selection"); } FUNC_LEAVE (SUCCEED); } /*------------------------------------------------------------------------- * Function: H5S_select_hyperslab * * Purpose: Internal version of H5Sselect_hyperslab(). * * Return: Success: SUCCEED * * Failure: FAIL * * Programmer: Robb Matzke (split from HSselect_hyperslab()). * Tuesday, August 25, 1998 * * Modifications: * *------------------------------------------------------------------------- */ herr_t H5S_select_hyperslab (H5S_t *space, H5S_seloper_t op, const hssize_t start[/*space_id*/], const hsize_t stride[/*space_id*/], const hsize_t count[/*space_id*/], const hsize_t block[/*space_id*/]) { hsize_t *_stride=NULL; /* Stride array */ hsize_t *_block=NULL; /* Block size array */ hssize_t slab[H5O_LAYOUT_NDIMS]; /* Location of the block to add for strided selections */ size_t slice[H5O_LAYOUT_NDIMS]; /* Size of preceding dimension's slice */ uintn acc; /* Accumulator for building slices */ uintn contig; /* whether selection is contiguous or not */ int i,j; /* Counters */ H5S_hyper_dim_t *diminfo; /* per-dimension info for the selection */ herr_t ret_value=FAIL; /* return value */ FUNC_ENTER (H5S_select_hyperslab, FAIL); /* Check args */ assert(space); assert(start); assert(count); assert(H5S_SELECT_SET==op); /* Fill in the correct stride values */ if(stride==NULL) { hssize_t fill=1; if((_stride = H5MM_malloc(sizeof(hssize_t)*space->extent.u.simple.rank))==NULL) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "can't allocate stride vector"); H5V_array_fill(_stride,&fill,sizeof(hssize_t),space->extent.u.simple.rank); stride = _stride; } /* Fill in the correct block values */ if(block==NULL) { hssize_t fill=1; if((_block = H5MM_malloc(sizeof(hssize_t)*space->extent.u.simple.rank))==NULL) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "can't allocate block vector"); H5V_array_fill(_block,&fill,sizeof(hssize_t),space->extent.u.simple.rank); block = _block; } /* * Check for overlapping blocks (remove when real block-merging algorithm * is in place). */ if(op==H5S_SELECT_SET && block!=NULL) { for(i=0; iextent.u.simple.rank; i++) { if(stride[i]extent.u.simple.rank; i++) { /* contiguous hyperslabs have the block size equal to the stride */ if(stride[i]!=block[i]) { contig=0; /* hyperslab isn't contiguous */ break; /* no use looking further */ } /* end if */ } /* end for */ #ifdef QAK printf("%s: check 1.0\n",FUNC); #endif /* QAK */ /* If we are setting a new selection, remove current selection first */ if(op==H5S_SELECT_SET) { if(H5S_select_release(space)<0) { HGOTO_ERROR(H5E_DATASPACE, H5E_CANTDELETE, FAIL, "can't release hyperslab"); } /* end if */ } /* end if */ /* Copy all the per-dimension selection info into the space descriptor */ if((diminfo = H5MM_malloc(sizeof(H5S_hyper_dim_t)*space->extent.u.simple.rank))==NULL) { HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "can't allocate per-dimension vector"); } /* end if */ for(i=0; iextent.u.simple.rank; i++) { diminfo[i].start = start[i]; diminfo[i].stride = stride[i]; diminfo[i].count = count[i]; diminfo[i].block = block[i]; } /* end for */ space->select.sel_info.hyper.diminfo = diminfo; #ifdef QAK printf("%s: check 2.0\n",FUNC); #endif /* QAK */ /* Allocate space for the hyperslab selection information if necessary */ if(space->select.type!=H5S_SEL_HYPERSLABS || space->select.sel_info.hyper.hyper_lst==NULL) { if((space->select.sel_info.hyper.hyper_lst = H5MM_calloc(sizeof(H5S_hyper_list_t)))==NULL) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "can't allocate hyperslab information"); if((space->select.sel_info.hyper.hyper_lst->lo_bounds = H5MM_calloc(space->extent.u.simple.rank* sizeof(H5S_hyper_bound_t *)))==NULL) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "can't allocate hyperslab lo bound information"); if((space->select.sel_info.hyper.hyper_lst->hi_bounds = H5MM_calloc(space->extent.u.simple.rank* sizeof(H5S_hyper_bound_t *)))==NULL) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "can't allocate hyperslab lo bound information"); } /* end if */ /* Generate list of blocks to add/remove based on selection operation */ #ifdef QAK printf("%s: check 3.0\n",FUNC); #endif /* QAK */ /* Add hyperslab to selection */ if(contig) { /* Check for trivial case */ /* Account for strides & blocks being equal, but larger than one */ /* (Why someone would torture us this way, I don't know... -QAK :-) */ for(i=0; iextent.u.simple.rank; i++) slab[i]=count[i]*stride[i]; /* Add the contiguous hyperslab to the selection */ if(H5S_hyper_add(space,start,(const hsize_t *)slab)<0) { HGOTO_ERROR(H5E_DATASPACE, H5E_CANTINSERT, FAIL, "can't insert hyperslab"); } } else { /* Build the slice sizes for each dimension */ for(i=0, acc=1; iextent.u.simple.rank; i++) { slice[i]=acc; acc*=count[i]; } /* end for */ /* Step through all the blocks to add */ /* (reuse the count in ACC above) */ for(i=0; i<(int)acc; i++) { /* Build the location of the block */ for(j=0; jextent.u.simple.rank; j++) slab[j]=start[j]+((i/slice[j])%count[j])*stride[j]; /* Add the block to the list of hyperslab selections */ if(H5S_hyper_add(space,(const hssize_t *)slab, (const hsize_t *)block)<0) { HGOTO_ERROR(H5E_DATASPACE, H5E_CANTINSERT, FAIL, "can't insert hyperslab"); } /* end if */ } /* end for */ } /* end if */ /* Set selection type */ space->select.type=H5S_SEL_HYPERSLABS; ret_value=SUCCEED; #ifdef QAK printf("%s: check 4.0\n",FUNC); #endif /* QAK */ done: H5MM_xfree(_stride); H5MM_xfree(_block); FUNC_LEAVE (ret_value); } /*-------------------------------------------------------------------------- NAME H5Sselect_elements PURPOSE Specify a series of elements in the dataspace to select USAGE herr_t H5Sselect_elements(dsid, op, num_elem, coord) hid_t dsid; IN: Dataspace ID of selection to modify H5S_seloper_t op; IN: Operation to perform on current selection size_t num_elem; IN: Number of elements in COORD array. const hssize_t **coord; IN: The location of each element selected RETURNS SUCCEED/FAIL DESCRIPTION This function selects array elements to be included in the selection for the dataspace. The COORD array is a 2-D array of size by NUM_ELEM (ie. a list of coordinates in the dataspace). The order of the element coordinates in the COORD array specifies the order that the array elements are iterated through when I/O is performed. Duplicate coordinates are not checked for. The selection operator, OP, determines how the new selection is to be combined with the existing selection for the dataspace. Currently, only H5S_SELECT_SET is supported, which replaces the existing selection with the one defined in this call. When operators other than H5S_SELECT_SET are used to combine a new selection with an existing selection, the selection ordering is reset to 'C' array ordering. GLOBAL VARIABLES COMMENTS, BUGS, ASSUMPTIONS EXAMPLES REVISION LOG --------------------------------------------------------------------------*/ herr_t H5Sselect_elements (hid_t spaceid, H5S_seloper_t op, size_t num_elem, const hssize_t **coord) { H5S_t *space = NULL; /* Dataspace to modify selection of */ herr_t ret_value=FAIL; /* return value */ FUNC_ENTER (H5Sselect_elements, FAIL); /* Check args */ if (H5_DATASPACE != H5I_group(spaceid) || NULL == (space=H5I_object(spaceid))) { HRETURN_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a data space"); } if(coord==NULL || num_elem==0) { HRETURN_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "elements not specified"); } /* end if */ if(op!=H5S_SELECT_SET) { HRETURN_ERROR(H5E_ARGS, H5E_UNSUPPORTED, FAIL, "operations other than H5S_SELECT_SET not supported currently"); } /* end if */ #ifdef QAK printf("%s: check 1.0\n",FUNC); #endif /* QAK */ /* If we are setting a new selection, remove current selection first */ if(op==H5S_SELECT_SET) { if(H5S_select_release(space)<0) { HGOTO_ERROR(H5E_DATASPACE, H5E_CANTDELETE, FAIL, "can't release hyperslab"); } /* end if */ } /* end if */ #ifdef QAK printf("%s: check 2.0\n",FUNC); #endif /* QAK */ /* Allocate space for the point selection information if necessary */ if(space->select.type!=H5S_SEL_POINTS || space->select.sel_info.pnt_lst==NULL) { if((space->select.sel_info.pnt_lst = H5MM_calloc(sizeof(H5S_pnt_list_t)))==NULL) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "can't allocate element information"); } /* end if */ #ifdef QAK printf("%s: check 3.0\n",FUNC); #endif /* QAK */ /* Add points to selection */ if(H5S_point_add(space,num_elem,coord)<0) { HGOTO_ERROR(H5E_DATASPACE, H5E_CANTINSERT, FAIL, "can't insert elements"); } /* Set selection type */ space->select.type=H5S_SEL_POINTS; ret_value=SUCCEED; #ifdef QAK printf("%s: check 4.0\n",FUNC); #endif /* QAK */ done: FUNC_LEAVE (ret_value); } /* H5Sselect_elements() */ /*-------------------------------------------------------------------------- NAME H5Sselect_all PURPOSE Specify the the entire extent is selected USAGE herr_t H5Sselect_elements(dsid) hid_t dsid; IN: Dataspace ID of selection to modify RETURNS SUCCEED/FAIL DESCRIPTION This function selects the entire extent for a dataspace. GLOBAL VARIABLES COMMENTS, BUGS, ASSUMPTIONS EXAMPLES REVISION LOG --------------------------------------------------------------------------*/ herr_t H5Sselect_all (hid_t spaceid) { H5S_t *space = NULL; /* Dataspace to modify selection of */ herr_t ret_value=FAIL; /* return value */ FUNC_ENTER (H5Sselect_all, FAIL); /* Check args */ if (H5_DATASPACE != H5I_group(spaceid) || NULL == (space=H5I_object(spaceid))) { HRETURN_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a data space"); } /* Remove current selection first */ if(H5S_select_release(space)<0) { HGOTO_ERROR(H5E_DATASPACE, H5E_CANTDELETE, FAIL, "can't release hyperslab"); } /* end if */ /* Set selection type */ space->select.type=H5S_SEL_ALL; ret_value=SUCCEED; done: FUNC_LEAVE (ret_value); } /* H5Sselect_all() */ /*-------------------------------------------------------------------------- NAME H5Sselect_none PURPOSE Specify that nothing is selected in the extent USAGE herr_t H5Sselect_elements(dsid) hid_t dsid; IN: Dataspace ID of selection to modify RETURNS SUCCEED/FAIL DESCRIPTION This function de-selects the entire extent for a dataspace. GLOBAL VARIABLES COMMENTS, BUGS, ASSUMPTIONS EXAMPLES REVISION LOG --------------------------------------------------------------------------*/ herr_t H5Sselect_none (hid_t spaceid) { H5S_t *space = NULL; /* Dataspace to modify selection of */ herr_t ret_value=FAIL; /* return value */ FUNC_ENTER (H5Sselect_none, FAIL); /* Check args */ if (H5_DATASPACE != H5I_group(spaceid) || NULL == (space=H5I_object(spaceid))) { HRETURN_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a data space"); } /* Remove current selection first */ if(H5S_select_release(space)<0) { HGOTO_ERROR(H5E_DATASPACE, H5E_CANTDELETE, FAIL, "can't release hyperslab"); } /* end if */ /* Set selection type */ space->select.type=H5S_SEL_NONE; ret_value=SUCCEED; done: FUNC_LEAVE (ret_value); } /* H5Sselect_none() */ /*-------------------------------------------------------------------------- NAME H5Sselect_npoints PURPOSE Get the number of elements in current selection USAGE hsize_t H5Sselect_npoints(dsid) hid_t dsid; IN: Dataspace ID of selection to query RETURNS The number of elements in selection on success, 0 on failure DESCRIPTION Returns the number of elements in current selection for dataspace. GLOBAL VARIABLES COMMENTS, BUGS, ASSUMPTIONS EXAMPLES REVISION LOG --------------------------------------------------------------------------*/ hsize_t H5Sselect_npoints(hid_t spaceid) { H5S_t *space = NULL; /* Dataspace to modify selection of */ hsize_t ret_value=0; /* return value */ FUNC_ENTER (H5Sselect_npoints, 0); H5TRACE1("h","i",spaceid); /* Check args */ if (H5_DATASPACE != H5I_group(spaceid) || NULL == (space=H5I_object(spaceid))) { HRETURN_ERROR(H5E_ARGS, H5E_BADTYPE, 0, "not a data space"); } ret_value = H5S_select_npoints(space); FUNC_LEAVE (ret_value); } /* H5Sselect_npoints() */ /*-------------------------------------------------------------------------- NAME H5S_select_npoints PURPOSE Get the number of elements in current selection USAGE herr_t H5Sselect_hyperslab(ds) H5S_t *ds; IN: Dataspace pointer RETURNS The number of elements in selection on success, 0 on failure DESCRIPTION Returns the number of elements in current selection for dataspace. GLOBAL VARIABLES COMMENTS, BUGS, ASSUMPTIONS EXAMPLES REVISION LOG --------------------------------------------------------------------------*/ hsize_t H5S_select_npoints (const H5S_t *space) { herr_t ret_value=FAIL; /* return value */ FUNC_ENTER (H5S_select_npoints, FAIL); assert(space); switch(space->select.type) { case H5S_SEL_POINTS: /* Sequence of points selected */ ret_value=H5S_point_npoints(space); break; case H5S_SEL_HYPERSLABS: /* Hyperslab selection defined */ ret_value=H5S_hyper_npoints(space); break; case H5S_SEL_ALL: /* Entire extent selected */ ret_value=H5S_all_npoints(space); break; case H5S_SEL_NONE: /* Nothing selected */ ret_value=0; break; case H5S_SEL_ERROR: case H5S_SEL_N: break; } FUNC_LEAVE (ret_value); } /* H5Sselect_npoints() */ /*-------------------------------------------------------------------------- NAME H5S_sel_iter_release PURPOSE Release selection iterator information for a dataspace USAGE herr_t H5S_sel_iter_release(sel_iter) const H5S_t *space; IN: Pointer to dataspace iterator is for H5S_sel_iter_t *sel_iter; IN: Pointer to selection iterator RETURNS SUCCEED/FAIL DESCRIPTION Releases all information for a dataspace selection iterator GLOBAL VARIABLES COMMENTS, BUGS, ASSUMPTIONS EXAMPLES REVISION LOG --------------------------------------------------------------------------*/ herr_t H5S_sel_iter_release (const H5S_t *space, H5S_sel_iter_t *sel_iter) { herr_t ret_value=SUCCEED; /* Return value */ FUNC_ENTER (H5S_sel_iter_release, FAIL); /* Check args */ assert (sel_iter); switch(space->select.type) { case H5S_SEL_POINTS: /* Sequence of points selected */ case H5S_SEL_ALL: /* Entire extent selected */ /* no action needed */ ret_value=SUCCEED; break; case H5S_SEL_HYPERSLABS: /* Hyperslab selection defined */ ret_value=H5S_hyper_sel_iter_release(sel_iter); break; case H5S_SEL_NONE: /* Nothing selected */ break; case H5S_SEL_ERROR: case H5S_SEL_N: break; } FUNC_LEAVE (ret_value); } /* H5S_sel_iter_release() */ /*-------------------------------------------------------------------------- NAME H5Sselect_valid PURPOSE Check whether the selection fits within the extent, with the current offset defined. USAGE hbool_t H5Sselect_void(dsid) hid_t dsid; IN: Dataspace ID to query RETURNS TRUE if the selection fits within the extent, FALSE if it does not and FAIL on an error. DESCRIPTION Determines if the current selection at the current offet fits within the extent for the dataspace. GLOBAL VARIABLES COMMENTS, BUGS, ASSUMPTIONS EXAMPLES REVISION LOG --------------------------------------------------------------------------*/ hbool_t H5Sselect_valid(hid_t spaceid) { H5S_t *space = NULL; /* Dataspace to modify selection of */ hbool_t ret_value=FAIL; /* return value */ FUNC_ENTER (H5Sselect_valid, 0); H5TRACE1("b","i",spaceid); /* Check args */ if (H5_DATASPACE != H5I_group(spaceid) || NULL == (space=H5I_object(spaceid))) { HRETURN_ERROR(H5E_ARGS, H5E_BADTYPE, 0, "not a data space"); } ret_value = H5S_select_valid(space); FUNC_LEAVE (ret_value); } /* H5Sselect_valid() */ /*-------------------------------------------------------------------------- NAME H5S_select_valid PURPOSE Check whether the selection fits within the extent, with the current offset defined. USAGE hbool_t H5Sselect_void(space) H5S_t *space; IN: Dataspace pointer to query RETURNS TRUE if the selection fits within the extent, FALSE if it does not and FAIL on an error. DESCRIPTION Determines if the current selection at the current offet fits within the extent for the dataspace. GLOBAL VARIABLES COMMENTS, BUGS, ASSUMPTIONS EXAMPLES REVISION LOG --------------------------------------------------------------------------*/ hbool_t H5S_select_valid (const H5S_t *space) { hbool_t ret_value=FAIL; /* return value */ FUNC_ENTER (H5S_select_valid, FAIL); assert(space); switch(space->select.type) { case H5S_SEL_POINTS: /* Sequence of points selected */ ret_value=H5S_point_select_valid(space); break; case H5S_SEL_HYPERSLABS: /* Hyperslab selection defined */ ret_value=H5S_hyper_select_valid(space); break; case H5S_SEL_ALL: /* Entire extent selected */ case H5S_SEL_NONE: /* Nothing selected */ ret_value=TRUE; break; case H5S_SEL_ERROR: case H5S_SEL_N: break; } FUNC_LEAVE (ret_value); } /* H5S_select_valid() */