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authorbljhdf <58825073+bljhdf@users.noreply.github.com>2020-12-16 03:17:41 (GMT)
committerGitHub <noreply@github.com>2020-12-16 03:17:41 (GMT)
commitf09ec2657cb0ab9b646f8a4a1d5302444c38bf72 (patch)
tree5aa8835276ebc6e48f973b6b778167d55ec6a4b8 /src/H5Spublic.h
parentf3629d6148970b43f1625d62e01d57adc7d5fa5d (diff)
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Doxygen - RM entries for H5A, H5S, and H5P APIs (#181)
* Doxygen - RM entries for H5A, H5S, and H5P APIs * fix issues on ubuntu * added missing H5F_fspace_strategy_t_snip
Diffstat (limited to 'src/H5Spublic.h')
-rw-r--r--src/H5Spublic.h1096
1 files changed, 1020 insertions, 76 deletions
diff --git a/src/H5Spublic.h b/src/H5Spublic.h
index 62e2128..e4163df 100644
--- a/src/H5Spublic.h
+++ b/src/H5Spublic.h
@@ -120,7 +120,7 @@ typedef enum {
extern "C" {
#endif
-/* Operations on dataspaces and dataspace selections */
+/* Operations on dataspaces, dataspace selections and selection iterators */
/**
* \ingroup H5S
@@ -143,6 +143,77 @@ H5_DLL herr_t H5Sclose(hid_t space_id);
/**
* \ingroup H5S
*
+ * \brief Performs an operation on a hyperslab and an existing selection and
+ * returns the resulting selection
+ *
+ * \space_id
+ * \param[in] op Operation to perform on the current selection
+ * \param[in] start Offset of the start of of the hyperslab
+ * \param[in] stride Hyperslab stride
+ * \param[in] count Number of blocks included in the hyperslab
+ * \param[in] block Size of a block in the hyperslab
+ *
+ * \return \hid_tv{dataspace}
+ *
+ * \details H5Scombine_hyperslab() combines a hyperslab selection specified
+ * by \p start, \p stride, \p count and \p block with the current
+ * selection for the dataspace \p space_id, creating a new dataspace
+ * to return the generated selection. 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). If either \p stride or
+ * \p block is NULL, then it will be set to \p 1.
+ *
+ * \since 1.12.0
+ *
+ */
+H5_DLL hid_t H5Scombine_hyperslab(hid_t space_id, H5S_seloper_t op,
+ const hsize_t start[], const hsize_t stride[], const hsize_t count[],
+ const hsize_t block[]);
+/**
+ * \ingroup H5S
+ *
+ * \brief Combine two hyperslab selections with an operation, returning a
+ * dataspace with the resulting selection
+ *
+ * \space_id{space1_id}
+ * \param[in] op Selection operator
+ * \space_id{space2_id}
+ *
+ * \return \hid_t{dataspace}
+ *
+ * \details H5Scombine_select() combines two hyperslab selections
+ * \p space1_id and \p space2_id with an operation, returning a
+ * new dataspace with the resulting selection. The dataspace extent
+ * from \p space1_id is copied for the dataspace extent of the
+ * newly created dataspace.
+ *
+ * \since 1.12.0
+ *
+*/
+H5_DLL hid_t H5Scombine_select(hid_t space1_id, H5S_seloper_t op, hid_t space2_id);
+/**
+ * \ingroup H5S
+ *
+ * \brief Creates an exact copy of a dataspace
+ *
+ * \space_id
+ *
+ * \return \hid_tv{dataspace}
+ *
+ * \details H5Scopy() creates a new dataspace which is an exact copy of the
+ * dataspace identified by \p space_id. The dataspace identifier
+ * returned from this function should be released with H5Sclose()
+ * or resource leaks will occur.
+ *
+ * \version 1.4.0 Fortran subroutine introduced.
+ * \since 1.0.0
+ *
+ */
+H5_DLL hid_t H5Scopy(hid_t space_id);
+/**
+ * \ingroup H5S
+ *
* \brief Creates a new dataspace of a specified type
*
* \param[in] type Type of dataspace to be created
@@ -171,7 +242,7 @@ H5_DLL herr_t H5Sclose(hid_t space_id);
* \since 1.0.0
*
*/
-H5_DLL hid_t H5Screate(H5S_class_t type);
+H5_DLL hid_t H5Screate(H5S_class_t type);
/**
* \ingroup H5S
* \brief Creates a new simple dataspace and opens it for access
@@ -182,32 +253,34 @@ H5_DLL hid_t H5Screate(H5S_class_t type);
*
* \return \hid_t{dataspace}
*
- * \details H5Screate_simple() creates a new simple dataspace and opens it
- * for access, returning a dataspace identifier.
+ * \details H5Screate_simple() creates a new simple dataspace and opens it
+ * for access, returning a dataspace identifier.
*
- * \p rank is the number of dimensions used in the dataspace.
+ * \p rank is the number of dimensions used in the dataspace.
*
- * \p dims is a one-dimensional array of size rank specifying the
- * size of each dimension of the dataset. \p maxdims is an array of the
- * same size specifying the upper limit on the size of each dimension.
+ * \p dims is a one-dimensional array of size rank specifying the
+ * size of each dimension of the dataset. \p maxdims is an array of
+ * the same size specifying the upper limit on the size of each
+ * dimension.
*
- * Any element of \p dims can be \p 0 (zero). Note that no data can
- * be written to a dataset if the size of any dimension of its current
- * dataspace is \p 0. This is sometimes a useful initial state for a dataset.
+ * Any element of \p dims can be \p 0 (zero). Note that no data can
+ * be written to a dataset if the size of any dimension of its current
+ * dataspace is \p 0. This is sometimes a useful initial state for
+ * a dataset.
*
- * \p maxdims may be the null pointer, in which case the upper limit is
- * the same as \p dims. Otherwise, no element of \p maxdims
- * should be smaller than the corresponding element of \p dims.
+ * \p maxdims may be the null pointer, in which case the upper limit
+ * is the same as \p dims. Otherwise, no element of \p maxdims
+ * should be smaller than the corresponding element of \p dims.
*
- * If an element of \p maxdims is #H5S_UNLIMITED, the maximum size of the
- * corresponding dimension is unlimited.
+ * If an element of \p maxdims is #H5S_UNLIMITED, the maximum size of
+ * the corresponding dimension is unlimited.
*
- * Any dataset with an unlimited dimension must also be chunked; see
- * H5Pset_chunk(). Similarly, a dataset must be chunked if \p dims does
- * not equal \p maxdims.
+ * Any dataset with an unlimited dimension must also be chunked; see
+ * H5Pset_chunk(). Similarly, a dataset must be chunked if \p dims
+ * does not equal \p maxdims.
*
- * The dataspace identifier returned from this function must be released with
- * H5Sclose() or resource leaks will occur.
+ * The dataspace identifier returned from this function must be
+ * released with H5Sclose() or resource leaks will occur.
*
* \note Once a dataspace has been created, specific regions or elements in
* the dataspace can be selected and selections can be removed, as well.
@@ -223,8 +296,304 @@ H5_DLL hid_t H5Screate(H5S_class_t type);
*
*/
H5_DLL hid_t H5Screate_simple(int rank, const hsize_t dims[], const hsize_t maxdims[]);
-/*--------------------------------------------------------------------------*/
-/**\ingroup H5S
+/**
+ * \ingroup H5S
+ *
+ * \brief Decodes a binary object description of data space and returns a
+ * new object handle
+ *
+ * \param[in] buf Buffer for the data space object to be decoded
+ *
+ * \return \hid_t{dataspace}
+ *
+ * \details Given an object description of a dataspace in binary in a
+ * buffer, H5Sdecode() reconstructs the HDF5 data type object and
+ * returns a new object handle for it. The binary description of the
+ * object is encoded by H5Sencode(). The user is responsible for
+ * passing in the right buffer. The types of dataspace addressed
+ * in this function are null, scalar, and simple space. For a
+ * simple dataspace, the selection information (for example,
+ * hyperslab selection) is also encoded and decoded. A complex
+ * dataspace has not been implemented in the library.
+ *
+ * \since 1.8.0
+ *
+ */
+H5_DLL hid_t H5Sdecode(const void *buf);
+/**
+ * \ingroup H5S
+ *
+ * \brief Encodes a data space object description into a binary buffer
+ *
+ * \space_id{obj_id}
+ * \param[in,out] buf Buffer for the object to be encoded into;
+ * If the provided buffer is NULL, only the size
+ * of buffer needed is returned through \p nalloc.
+ * \param[in,out] nalloc The size of the allocated buffer
+ * \fapl_id{fapl}
+ *
+ * \return \herr_t
+ *
+ * \details Given the data space identifier \p obj_id, H5Sencode2() converts
+ * a data space description into binary form in a buffer. Using this
+ * binary form in the buffer, a data space object can be
+ * reconstructed with H5Sdecode() to return a new object handle
+ * (#hid_t) for this data space.
+ *
+ * A preliminary H5Sencode2() call can be made to determine the
+ * size of the buffer needed. This value is returned in \p nalloc.
+ * That value can then be assigned to \p nalloc for a second
+ * H5Sencode2() call, which will retrieve the actual encoded object.
+ *
+ * If the library determines that \p nalloc is not big enough for the
+ * object, it simply returns the size of the buffer needed through
+ * \p nalloc without encoding the provided buffer.
+ *
+ * The file access property list \p fapl_id is used to control the
+ * encoding via the \a libver_bounds property (see
+ * H5Pset_libver_bounds()). If the \a libver_bounds property is missing,
+ * H5Sencode2() proceeds as if the \a libver_bounds property were set to
+ * (#H5F_LIBVER_EARLIEST, #H5F_LIBVER_LATEST). (Functionally,
+ * H5Sencode1() is identical to H5Sencode2() with \a libver_bounds set to
+ * (#H5F_LIBVER_EARLIEST, #H5F_LIBVER_LATEST).)
+ *
+ * The types of data space that are addressed in this function are
+ * null, scalar, and simple space. For a simple data space, the
+ * information on the selection, for example, hyperslab selection,
+ * is also encoded and decoded. A complex data space has not been
+ * implemented in the library.
+ *
+ * \note Motivation: This function was introduced in HDF5-1.12 as part of the
+ * H5Sencode() format change to enable 64-bit selection encodings and
+ * a dataspace selection that is tied to a file. See the New Features
+ * in HDF5 Release 1.12 as well as the H5Sencode() / H5Sdecode() Format Change RFC.
+ *
+ * \todo Fix the references.
+ *
+ * \since 1.12.0
+ *
+ */
+H5_DLL herr_t H5Sencode2(hid_t obj_id, void *buf, size_t *nalloc, hid_t fapl);
+/**
+ * \ingroup H5S
+ *
+ * \brief Copies the extent of a dataspace
+ *
+ * \space_id{dst_id}
+ * \space_id{src_id}
+ *
+ * \return \herr_t
+ *
+ * \details H5Sextent_copy() copies the extent from \p src_id to \p dst_id.
+ * This action may change the type of the dataspace.
+ *
+ * \version 1.4.0 Fortran subroutine was introduced.
+ * \since 1.0.0
+ *
+ */
+H5_DLL herr_t H5Sextent_copy(hid_t dst_id,hid_t src_id);
+/**
+ * \ingroup H5S
+ *
+ * \brief Determines whether two dataspace extents are equal
+ *
+ * \space_id{space1_id}
+ * \space_id{space2_id}
+ *
+ * \return \htri_t
+ *
+ * \details H5Sextent_equal() determines whether the dataspace extents of
+ * two dataspaces, \p space1_id and \p space2_id, are equal.
+ *
+ * \since 1.8.0
+ *
+ */
+H5_DLL htri_t H5Sextent_equal(hid_t space1_id, hid_t space2_id);
+/**
+ * \ingroup H5S
+ *
+ * \brief Retrieves a regular hyperslab selection
+ *
+ * \space_id{spaceid}
+ * \param[out] start Offset of the start of the regular hyperslab
+ * \param[out] stride Stride of the regular hyperslab
+ * \param[out] count Number of blocks in the regular hyperslab
+ * \param[out] block Size of a block in the regular hyperslab
+ *
+ * \return \herr_t
+ *
+ * \details H5Sget_regular_hyperslab() takes the dataspace identifier,
+ * \p spaceid, and retrieves the values of \p start, \p stride,
+ * \p count, and \p block for the regular hyperslab selection.
+ *
+ * A regular hyperslab selection is a hyperslab selection
+ * described by setting the \p offset, \p stride, \p count, and
+ * \p block parameters to the H5Sselect_hyperslab() call. If
+ * several calls to H5Sselect_hyperslab() are needed, the
+ * hyperslab selection is irregular.
+ *
+ * See H5Sselect_hyperslab() for descriptions of \p offset,
+ * \p stride, \p count, and \p block.
+ *
+ * \note If a hyperslab selection is originally regular, then becomes
+ * irregular through selection operations, and then becomes regular
+ * again, the final regular selection may be equivalent but not
+ * identical to the original regular selection.
+ *
+ * \since 1.10.0
+ *
+ */
+H5_DLL htri_t H5Sget_regular_hyperslab(hid_t spaceid, hsize_t start[],
+ hsize_t stride[], hsize_t count[], hsize_t block[]);
+/**
+ * \ingroup H5S
+ *
+ * \brief Gets the bounding box containing the current selection
+ *
+ * \space_id{spaceid}
+ * \param[out] start Starting coordinates of the bounding box
+ * \param[out] end Ending coordinates of the bounding box, i.e., the
+ * coordinates of the diagonally opposite corner
+ *
+ * \return \herr_t
+ *
+ * \details H5Sget_select_bounds() retrieves the coordinates of the bounding
+ * box containing the current selection and places them into
+ * user-supplied buffers.
+ *
+ * The \p start and \p end buffers must be large enough to hold
+ * the dataspace rank number of coordinates.
+ *
+ * The bounding box exactly contains the selection. I.e., if a
+ * 2-dimensional element selection is currently defined as containing
+ * the points (4,5), (6,8), and (10,7), then the bounding box
+ * will be (4, 5), (10, 8).
+ *
+ * The bounding box calculation includes the current offset of the
+ * selection within the dataspace extent.
+ *
+ * Calling this function on a \a none selection will fail.
+ *
+ * \version 1.6.0 The \p start and \p end parameters have changed from type
+ * \p hsize_t * to \p hssize_t *.
+ * \version 1.4.0 Fortran subroutine was introduced.
+ * \since 1.2.0
+ *
+ */
+H5_DLL herr_t H5Sget_select_bounds(hid_t spaceid, hsize_t start[],
+ hsize_t end[]);
+/**
+ * \ingroup H5S
+ *
+ * \brief Gets the number of element points in the current selection
+ *
+ * \space_id{spaceid}
+ *
+ * \return Returns the number of element points in the current dataspace
+ * selection if successful. Otherwise returns a negative value.
+ *
+ * \details H5Sget_select_elem_npoints() returns the number of element
+ * points in the current dataspace selection, so that the element
+ * points can be retrieved with H5Sget_select_elem_pointlist().
+ * (This is similar to the way that H5Sget_select_hyper_nblocks()
+ * and H5Sget_select_hyper_blocklist() work with hyperslab
+ * selections.)
+ *
+ * Coincidentally, H5Sget_select_npoints() and
+ * H5Sget_select_elem_npoints() will always return the same value
+ * when an element selection is queried, but
+ * H5Sget_select_elem_npoints() does not work with other selection
+ * types.
+ *
+ * \since 1.2.0
+ *
+ */
+H5_DLL hssize_t H5Sget_select_elem_npoints(hid_t spaceid);
+/**
+ * \ingroup H5S
+ *
+ * \brief Gets the list of element points currently selected
+ *
+ * \space_id{spaceid}
+ * \param[in] startpoint Element point to start with
+ * \param[in] numpoints Number of element points to get
+ * \param[out] buf List of element points selected
+ *
+ * \details H5Sget_select_elem_pointlist() returns the list of element
+ * points in the current dataspace selection \p space_id. Starting
+ * with the \p startpoint in the list of points, \p numpoints
+ * points are put into the user's buffer. If the user's buffer
+ * fills up before \p numpoints points are inserted, the buffer
+ * will contain only as many points as fit.
+ *
+ * The element point coordinates have the same dimensionality
+ * (rank) as the dataspace they are located within. The list of
+ * element points is formatted as follows:\n
+ * \<coordinate\>, followed by\n
+ * the next coordinate,\n
+ * etc.\n
+ * until all of the selected element points have been listed.
+ *
+ * The points are returned in the order they will be iterated
+ * through when the selection is read/written from/to disk.
+ *
+ * \since 1.2.0
+ *
+ */
+H5_DLL herr_t H5Sget_select_elem_pointlist(hid_t spaceid, hsize_t startpoint,
+ hsize_t numpoints, hsize_t buf[/*numpoints*/]);
+/**
+ * \ingroup H5S
+ *
+ * \brief Gets the list of hyperslab blocks currently selected
+ *
+ * \space_id{spaceid}
+ * \param[in] startblock Hyperslab block to start with
+ * \param[in] numblocks Number of hyperslab blocks to get
+ * \param[out] buf List of hyperslab blocks selected
+ *
+ * \return \herr_t
+ *
+ * \details H5Sget_select_hyper_blocklist() returns a list of the hyperslab
+ * blocks currently selected. Starting with the \p startblock-th block
+ * in the list of blocks, \p numblocks blocks are put into the
+ * user's buffer. If the user's buffer fills up before \p numblocks
+ * blocks are inserted, the buffer will contain only as many blocks
+ * as fit.
+ *
+ * The block coordinates have the same dimensionality (rank) as the
+ * dataspace they are located within. The list of blocks is
+ * formatted as follows:\n
+ * \<"start" coordinate\>, immediately followed by\n
+ * \<"opposite" corner coordinate\>, followed by\n
+ * the next "start" and "opposite" coordinates,\n
+ * etc. until all of the selected blocks have been listed.\n
+ * No guarantee of any order of the blocks is implied.
+ *
+ * \since 1.2.0
+ *
+ */
+H5_DLL herr_t H5Sget_select_hyper_blocklist(hid_t spaceid, hsize_t startblock,
+ hsize_t numblocks, hsize_t buf[/*numblocks*/]);
+/**
+ * \ingroup H5S
+ *
+ * \brief Get number of hyperslab blocks
+ *
+ * \space_id{spaceid}
+ *
+ * \return Returns the number of hyperslab blocks in the current dataspace
+ * selection if successful. Otherwise returns a negative value.
+ *
+ * \details H5Sget_select_hyper_nblocks() returns the number of hyperslab
+ * blocks in the current dataspace selection.
+ *
+ * \since 1.2.0
+ *
+ */
+H5_DLL hssize_t H5Sget_select_hyper_nblocks(hid_t spaceid);
+/**
+ * \ingroup H5S
*
* \brief Determines the number of elements in a dataspace selection
*
@@ -243,8 +612,47 @@ H5_DLL hid_t H5Screate_simple(int rank, const hsize_t dims[], const hsize_t maxd
*
*/
H5_DLL hssize_t H5Sget_select_npoints(hid_t spaceid);
-/*-------------------------------------------------------------------------*/
-/**\ingroup H5S
+/**
+ * \ingroup H5S
+ *
+ * \brief Determines the type of the dataspace selection
+ *
+ * \space_id{spaceid}
+ *
+ * \return Returns the dataspace selection type, a value of the enumerated
+ * datatype #H5S_sel_type, if successful.
+ *
+ * \details H5Sget_select_type() retrieves the type of dataspace selection
+ * currently defined for the dataspace \p space_id. Valid values
+ * for the dataspace selection type are:
+ *
+ * <table>
+ * <tr>
+ * <td>#H5S_SEL_NONE</td>
+ * <td>No selection is defined</td>
+ * </tr>
+ * <tr>
+ * <td>#H5S_SEL_POINTS</td>
+ * <td>A sequence of points is selected</td>
+ * </tr>
+ * <tr>
+ * <td>#H5S_SEL_HYPERSLABS</td>
+ * <td>A hyperslab or compound hyperslab is selected</td>
+ * </tr>
+ * <tr>
+ * <td>#H5S_SEL_ALL</td>
+ * <td>The entire dataset is selected</td>
+ * </tr>
+ * </table>
+ *
+ * Otherwise returns a negative value.
+ *
+ * \since 1.6.0
+ *
+ */
+H5_DLL H5S_sel_type H5Sget_select_type(hid_t spaceid);
+/**
+ * \ingroup H5S
*
* \brief Retrieves dataspace dimension size and maximum size
*
@@ -269,9 +677,10 @@ H5_DLL hssize_t H5Sget_select_npoints(hid_t spaceid);
* \since 1.0.0
*
*/
-H5_DLL int H5Sget_simple_extent_dims(hid_t space_id, hsize_t dims[], hsize_t maxdims[]);
-/*-------------------------------------------------------------------------*/
-/**\ingroup H5S
+H5_DLL int H5Sget_simple_extent_dims(hid_t space_id, hsize_t dims[],
+ hsize_t maxdims[]);
+/**
+ * \ingroup H5S
*
* \brief Determines the dimensionality of a dataspace
*
@@ -288,9 +697,391 @@ H5_DLL int H5Sget_simple_extent_dims(hid_t space_id, hsize_t dims[], hsize_t max
*
*/
H5_DLL int H5Sget_simple_extent_ndims(hid_t space_id);
-/*--------------------------------------------------------------------------*/
+/**
+ * \ingroup H5S
+ *
+ * \brief Determines the number of elements in a dataspace
+ *
+ * \space_id
+ *
+ * \return Returns the number of elements in the dataspace if successful;
+ * otherwise returns a negative value.
+ *
+ * \details H5Sget_simple_extent_npoints() determines the number of elements
+ * in a dataspace \p space_id. For example, a simple 3-dimensional
+ * dataspace with dimensions 2, 3, and 4 would have 24 elements.
+ *
+ * \version 1.4.0 Fortran subroutine introduced.
+ * \since 1.0.0
+ *
+ */
+H5_DLL hssize_t H5Sget_simple_extent_npoints(hid_t space_id);
+/**
+ * \ingroup H5S
+ *
+ * \brief Determines the current class of a dataspace
+ *
+ * \space_id
+ *
+ * \return Returns a dataspace class name if successful;
+ * otherwise #H5S_NO_CLASS (-1).
+ *
+ * \details H5Sget_simple_extent_type() determines the current class of a
+ * dataspace \p space_id.
+ *
+ * \version 1.4.0 Fortran subroutine was introduced.
+ * \since 1.0.0
+ *
+ */
+H5_DLL H5S_class_t H5Sget_simple_extent_type(hid_t space_id);
+/**
+ * \ingroup H5S
+ *
+ * \brief Determines if a hyperslab selection is regular
+ *
+ * \space_id{spaceid}
+ *
+ * \return \htri_t
+ *
+ * \details H5Sis_regular_hyperslab() takes the dataspace identifier,
+ * \p spaceid, and queries the type of the hyperslab selection.
+ *
+ * A regular hyperslab selection is a hyperslab selection described
+ * by setting the offset, stride, count, and block parameters for
+ * a single H5Sselect_hyperslab() call. If several calls to
+ * H5Sselect_hyperslab() are needed, then the hyperslab selection
+ * is irregular.
+ *
+ * \since 1.10.0
+ *
+ */
+H5_DLL htri_t H5Sis_regular_hyperslab(hid_t spaceid);
+/**
+ * \ingroup H5S
+ *
+ * \brief Determines whether a dataspace is a simple dataspace
+ *
+ * \space_id
+ *
+ * \return \htri_t
+ *
+ * \details H5Sis_simple() determines whether or not a dataspace is a simple
+ * dataspace.
+ *
+ * \note Currently, all dataspace objects are simple dataspaces; complex
+ * dataspace support will be added in the future.
+ *
+ * \version 1.4.0 Fortran subroutine was introduced.
+ * \since 1.0.0
+ *
+ */
+H5_DLL htri_t H5Sis_simple(hid_t space_id);
+/**
+ * \ingroup H5S
+ *
+ * \brief Refines a hyperslab selection with an operation, using a second
+ * hyperslab to modify it
+ *
+ * \space_id{space1_id}
+ * \param[in] op Selection operator
+ * \space_id{space2_id}
+ *
+ * \return \herr_t
+ *
+ * \details H5Smodify_select() refines an existing hyperslab selection
+ * \p space1_id with an operation \p op, using a second hyperslab
+ * \p space2_id. The first selection is modified to contain the
+ * result of \p space1_id operated on by \p space2_id.
+ *
+ * \since 1.12.0
+ *
+*/
+H5_DLL herr_t H5Smodify_select(hid_t space1_id, H5S_seloper_t op, hid_t space2_id);
+/**
+ * \ingroup H5S
+ *
+ * \brief Sets the offset of a simple dataspace
+ *
+ * \space_id
+ * \param[in] offset The offset at which to position the selection
+ *
+ * \return \herr_t
+ *
+ * \details H5Soffset_simple() sets the offset of a simple dataspace
+ * \p space_id. The offset array must be the same number of
+ * elements as the number of dimensions for the dataspace. If the
+ * \p offset array is set to NULL, the offset for the dataspace is
+ * reset to 0.
+ *
+ * This function allows the same shaped selection to be moved to
+ * different locations within a dataspace without requiring it to
+ * be redefined.
+ *
+ * \version 1.4.0 Fortran subroutine was introduced.
+ * \since 1.0.0
+ *
+ */
+H5_DLL herr_t H5Soffset_simple(hid_t space_id, const hssize_t *offset);
+/**
+ * \ingroup H5S
+ *
+ * \brief Closes a dataspace selection iterator
+ *
+ * \space_id{sel_iter_id}
+ *
+ * \return \herr_t
+ *
+ * \details H5Ssel_iter_close() closes a dataspace selection iterator
+ * specified by \p sel_iter_id, releasing its state.
+ *
+ * \since 1.12.0
+ *
+ */
+H5_DLL herr_t H5Ssel_iter_close(hid_t sel_iter_id);
/**\ingroup H5S
*
+ * \brief Creates a dataspace selection iterator for a dataspace's selection
+ *
+ * \space_id{spaceid}
+ * \param[in] elmt_size Size of element in the selection
+ * \param[in] flags Selection iterator flag
+ *
+ * \return \hid_t{valid dataspace selection iterator}
+ *
+ * \details H5Ssel_iter_create() creates a selection iterator and initializes
+ * it to start at the first element selected in the dataspace.
+ *
+ * \since 1.12.0
+ *
+ */
+H5_DLL hid_t H5Ssel_iter_create(hid_t spaceid, size_t elmt_size, unsigned flags);
+/**
+ * \ingroup H5S
+ *
+ * \brief Retrieves a list of offset / length sequences for the elements in
+ * an iterator
+ *
+ * \space_id{sel_iter_id}
+ * \param[in] maxseq Maximum number of sequences to retrieve
+ * \param[in] maxbytes Maximum number of bytes to retrieve in sequences
+ * \param[out] nseq Number of sequences retrieved
+ * \param[out] nbytes Number of bytes retrieved, in all sequences
+ * \param[out] off Array of sequence offsets
+ * \param[out] len Array of sequence lengths
+ *
+ * \return \herr_t
+ *
+ * \details H5Ssel_iter_get_seq_list() retrieves a list of offset / length
+ * pairs (a list of "sequences") matching the selected elements for
+ * an iterator \p sel_iter_id, according to the iteration order for
+ * the iterator. The lengths returned are in bytes, not elements.
+ *
+ * Note that the iteration order for "all" and "hyperslab"
+ * selections is row-major (i.e. "C-ordered"), but the iteration
+ * order for "point" selections is "in order selected", unless the
+ * #H5S_SEL_ITER_GET_SEQ_LIST_SORTED flag is passed to
+ * H5Ssel_iter_create() for a point selection.
+ *
+ * \p maxseq and \p maxbytes specify the most sequences or bytes
+ * possible to place into the \p off and \p len arrays. \p nseq and
+ * \p nbytes return the actual number of sequences and bytes put
+ * into the arrays.
+ *
+ * Each call to H5Ssel_iter_get_seq_list() will retrieve the next
+ * set of sequences for the selection being iterated over.
+ *
+ * The total number of bytes possible to retrieve from a selection
+ * iterator is the \p elmt_size passed to H5Ssel_iter_create()
+ * multiplied by the number of elements selected in the dataspace
+ * the iterator was created from (which can be retrieved with
+ * H5Sget_select_npoints(). When there are no further sequences of
+ * elements to retrieve, calls to this routine will set \p nseq
+ * and \p nbytes to zero.
+ *
+ * \since 1.12.0
+ *
+ */
+H5_DLL herr_t H5Ssel_iter_get_seq_list(hid_t sel_iter_id, size_t maxseq,
+ size_t maxbytes, size_t *nseq, size_t *nbytes, hsize_t *off, size_t *len);
+/**
+ * \ingroup H5S
+ *
+ * \brief Resets a dataspace selection iterator back to an initial state
+ *
+ * \param[in] sel_iter_id Identifier of the dataspace selection iterator
+ * to reset
+ * \param[in] space_id Identifier of the dataspace with selection to
+ * iterate over
+ *
+ * \return \herr_t
+ *
+ * \details H5Ssel_iter_reset() resets a dataspace selection iterator back to
+ * an initial state so that the iterator may be used for iteration
+ * once again.
+ *
+ * \since 1.12.1
+ *
+ */
+H5_DLL herr_t H5Ssel_iter_reset(hid_t sel_iter_id, hid_t space_id);
+/**
+ * \ingroup H5S
+ *
+ * \brief Adjusts a selection by subtracting an offset
+ *
+ * \space_id{spaceid}
+ * \param[in] offset Offset to subtract
+ *
+ * \return \herr_t
+ *
+ * \details H5Sselect_adjust() shifts a dataspace selection by a specified
+ * logical offset within the dataspace extent.
+ *
+ * \note This can be useful for VOL developers to implement chunked datasets.
+ *
+ * \since 1.12.0
+ */
+H5_DLL herr_t H5Sselect_adjust(hid_t spaceid, const hssize_t *offset);
+/**
+ * \ingroup H5S
+ *
+ * \brief Selects an entire dataspace
+ *
+ * \space_id{spaceid}
+ *
+ * \return \herr_t
+ *
+ * \details H5Sselect_all() selects the entire extent of the dataspace
+ * \p dspace_id.
+ *
+ * More specifically, H5Sselect_all() sets the selection type to
+ * #H5S_SEL_ALL, which specifies the entire dataspace anywhere it
+ * is applied.
+ *
+ * \since 1.0.0
+ *
+ */
+H5_DLL herr_t H5Sselect_all(hid_t spaceid);
+/**
+ * \ingroup H5S
+ *
+ * \brief Copies a selection from one dataspace to another
+ *
+ * \space_id{dst_id}
+ * \space_id{src_id}
+ *
+ * \return \herr_t
+ *
+ * \details H5Sselect_copy() copies all selection information (including
+ * offset) from the source dataspace \p src_id to the destination
+ * dataspace \p dst_id.
+ *
+ * \since 1.12.0
+ *
+ */
+H5_DLL herr_t H5Sselect_copy(hid_t dst_id, hid_t src_id);
+/**
+ * \ingroup H5S
+ *
+ * \brief Selects array elements to be included in the selection for a
+ * dataspace
+ *
+ * \space_id
+ * \param[in] op Operator specifying how the new selection is to be
+ * combined with the existing selection for the dataspace
+ * \param[in] num_elem Number of elements to be selected
+ * \param[in] coord A pointer to a buffer containing a serialized copy of
+ * a 2-dimensional array of zero-based values specifying
+ * the coordinates of the elements in the point selection
+ *
+ * \return \herr_t
+ *
+ * \details H5Sselect_elements() selects array elements to be included in
+ * the selection for the \p space_id dataspace. This is referred
+ * to as a point selection.
+ *
+ * The number of elements selected is set in the \p num_elements
+ * parameter.
+ *
+ * The \p coord parameter is a pointer to a buffer containing a
+ * serialized 2-dimensional array of size \p num_elements by the
+ * rank of the dataspace. The array lists dataset elements in the
+ * point selection; that is, it’s a list of of zero-based values
+ * specifying the coordinates in the dataset of the selected
+ * elements. The order of the element coordinates in the \p coord
+ * array specifies the order in which the array elements are
+ * iterated through when I/O is performed. Duplicate coordinate
+ * locations are not checked for. See below for examples of the
+ * mapping between the serialized contents of the buffer and the
+ * point selection array that it represents.
+ *
+ * The selection operator \p op determines how the new selection
+ * is to be combined with the previously existing selection for
+ * the dataspace. The following operators are supported:
+ *
+ * <table>
+ * <tr>
+ * <td>#H5S_SELECT_SET</td>
+ * <td>Replaces the existing selection with the parameters from
+ * this call. Overlapping blocks are not supported with this
+ * operator. Adds the new selection to the existing selection.
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>#H5S_SELECT_APPEND</td>
+ * <td>Adds the new selection following the last element of the
+ * existing selection.</td>
+ * </tr>
+ * <tr>
+ * <td>#H5S_SELECT_PREPEND</td>
+ * <td>Adds the new selection preceding the first element of the
+ * existing selection.</td>
+ * </tr>
+ * </table>
+ *
+ * <b>Mapping the serialized \p coord buffer to a 2-dimensional
+ * point selection array:</b>
+ * To illustrate the construction of the contents of the \p coord
+ * buffer, consider two simple examples: a selection of 5 points in
+ * a 1-dimensional array and a selection of 3 points in a
+ * 4-dimensional array.
+ *
+ * In the 1D case, we will be selecting five points and a 1D
+ * dataspace has rank 1, so the selection will be described in a
+ * 5-by-1 array. To select the 1st, 14th, 17th, 23rd, 8th elements
+ * of the dataset, the selection array would be as follows
+ * (remembering that point coordinates are zero-based):
+ * \n 0
+ * \n 13
+ * \n 16
+ * \n 22
+ * \n 7
+ *
+ * This point selection array will be serialized in the \p coord
+ * buffer as:
+ * \n 0 13 16 22 7
+ *
+ * In the 4D case, we will be selecting three points and a 4D
+ * dataspace has rank 4, so the selection will be described in a
+ * 3-by-4 array. To select the points (1,1,1,1), (14,6,12,18), and
+ * (8,22,30,22), the point selection array would be as follows:
+ * \n 0 0 0 0
+ * \n 13 5 11 17
+ * \n 7 21 29 21
+ *
+ * This point selection array will be serialized in the \p coord
+ * buffer as:
+ * \n 0 0 0 0 13 5 11 17 7 21 29 21
+ *
+ * \version 1.6.4 C coord parameter type changed to \p const #hsize_t.
+ * \version 1.6.4 Fortran \p coord parameter type changed to \p INTEGER(HSIZE_T).
+ * \since 1.0.0
+ *
+ */
+H5_DLL herr_t H5Sselect_elements(hid_t space_id, H5S_seloper_t op,
+ size_t num_elem, const hsize_t *coord);
+/**
+ * \ingroup H5S
+ *
* \brief Selects a hyperslab region to add to the current selected region
*
* \space_id
@@ -393,53 +1184,165 @@ H5_DLL int H5Sget_simple_extent_ndims(hid_t space_id);
* \since 1.0.0
*
*/
-H5_DLL herr_t H5Sselect_hyperslab(hid_t space_id, H5S_seloper_t op, const hsize_t start[],
- const hsize_t stride[], const hsize_t count[], const hsize_t block[]);
-H5_DLL herr_t H5Sset_extent_simple(hid_t space_id, int rank, const hsize_t dims[], const hsize_t max[]);
-H5_DLL hid_t H5Scopy(hid_t space_id);
-H5_DLL herr_t H5Sencode2(hid_t obj_id, void *buf, size_t *nalloc, hid_t fapl);
-H5_DLL hid_t H5Sdecode(const void *buf);
-H5_DLL hssize_t H5Sget_simple_extent_npoints(hid_t space_id);
-H5_DLL htri_t H5Sis_simple(hid_t space_id);
-H5_DLL H5S_class_t H5Sget_simple_extent_type(hid_t space_id);
-H5_DLL herr_t H5Sset_extent_none(hid_t space_id);
-H5_DLL herr_t H5Sextent_copy(hid_t dst_id, hid_t src_id);
-H5_DLL htri_t H5Sextent_equal(hid_t sid1, hid_t sid2);
-
-/* Operations on dataspace selections */
-H5_DLL H5S_sel_type H5Sget_select_type(hid_t spaceid);
-H5_DLL herr_t H5Sselect_copy(hid_t dst_id, hid_t src_id);
-H5_DLL htri_t H5Sselect_valid(hid_t spaceid);
-H5_DLL herr_t H5Sselect_adjust(hid_t spaceid, const hssize_t *offset);
-H5_DLL herr_t H5Sget_select_bounds(hid_t spaceid, hsize_t start[], hsize_t end[]);
-H5_DLL htri_t H5Sselect_shape_same(hid_t space1_id, hid_t space2_id);
-H5_DLL htri_t H5Sselect_intersect_block(hid_t space_id, const hsize_t *start, const hsize_t *end);
-H5_DLL herr_t H5Soffset_simple(hid_t space_id, const hssize_t *offset);
-H5_DLL herr_t H5Sselect_all(hid_t spaceid);
-H5_DLL herr_t H5Sselect_none(hid_t spaceid);
-H5_DLL herr_t H5Sselect_elements(hid_t space_id, H5S_seloper_t op, size_t num_elem, const hsize_t *coord);
-H5_DLL hssize_t H5Sget_select_elem_npoints(hid_t spaceid);
-H5_DLL herr_t H5Sget_select_elem_pointlist(hid_t spaceid, hsize_t startpoint, hsize_t numpoints,
- hsize_t buf[/*numpoints*/]);
-H5_DLL hid_t H5Scombine_hyperslab(hid_t space_id, H5S_seloper_t op, const hsize_t start[],
- const hsize_t _stride[], const hsize_t count[], const hsize_t _block[]);
-H5_DLL herr_t H5Smodify_select(hid_t space1_id, H5S_seloper_t op, hid_t space2_id);
-H5_DLL hid_t H5Scombine_select(hid_t space1_id, H5S_seloper_t op, hid_t space2_id);
-H5_DLL htri_t H5Sis_regular_hyperslab(hid_t spaceid);
-H5_DLL htri_t H5Sget_regular_hyperslab(hid_t spaceid, hsize_t start[], hsize_t stride[], hsize_t count[],
- hsize_t block[]);
-H5_DLL hssize_t H5Sget_select_hyper_nblocks(hid_t spaceid);
-H5_DLL herr_t H5Sget_select_hyper_blocklist(hid_t spaceid, hsize_t startblock, hsize_t numblocks,
- hsize_t buf[/*numblocks*/]);
-H5_DLL hid_t H5Sselect_project_intersection(hid_t src_space_id, hid_t dst_space_id,
- hid_t src_intersect_space_id);
-
-/* Operations on dataspace selection iterators */
-H5_DLL hid_t H5Ssel_iter_create(hid_t spaceid, size_t elmt_size, unsigned flags);
-H5_DLL herr_t H5Ssel_iter_get_seq_list(hid_t sel_iter_id, size_t maxseq, size_t maxbytes, size_t *nseq,
- size_t *nbytes, hsize_t *off, size_t *len);
-H5_DLL herr_t H5Ssel_iter_reset(hid_t sel_iter_id, hid_t space_id);
-H5_DLL herr_t H5Ssel_iter_close(hid_t sel_iter_id);
+H5_DLL herr_t H5Sselect_hyperslab(hid_t space_id, H5S_seloper_t op,
+ const hsize_t start[], const hsize_t stride[], const hsize_t count[],
+ const hsize_t block[]);
+/*--------------------------------------------------------------------------*/
+/**\ingroup H5S
+ *
+ * \brief Checks if current selection intersects with a block
+ *
+ * \space_id
+ * \param[in] start Starting coordinate of block
+ * \param[in] end Opposite ("ending") coordinate of block
+ *
+ * \return \htri_t
+ *
+ * \details H5Sselect_intersect_block() checks to see if the current
+ * selection \p space_id in the dataspace intersects with the block
+ * specified by \p start and \p end.
+ *
+ * \note Assumes that \p start & \p end block bounds are inclusive, so
+ * \p start == \p end value is OK.
+ *
+ * \since 1.12.0
+ *
+ */
+H5_DLL htri_t H5Sselect_intersect_block(hid_t space_id, const hsize_t *start,
+ const hsize_t *end);
+/*--------------------------------------------------------------------------*/
+/**\ingroup H5S
+ *
+ * \brief Resets the selection region to include no elements
+ *
+ * \space_id{spaceid}
+ *
+ * \return \herr_t
+ *
+ * \details H5Sselect_none() resets the selection region for the dataspace
+ * \p space_id to include no elements.
+ *
+ * \since 1.0.0
+ *
+ */
+H5_DLL herr_t H5Sselect_none(hid_t spaceid);
+/*--------------------------------------------------------------------------*/
+/**\ingroup H5S
+ *
+ * \brief Projects the intersection of two source selections to a
+ * destination selection
+ *
+ * \space_id{src_space_id}
+ * \space_id{dst_space_id}
+ * \space_id{src_intersect_space_id}
+ *
+ * \return Returns a dataspace with a selection equal to the intersection of
+ * \p src_intersect_space_id and \p src_space_id projected from
+ * \p src_space to \p dst_space on success, negative on failure.
+ *
+ * \details H5Sselect_project_intersection() computes the intersection
+ * between two dataspace selections and projects that intersection
+ * into a third selection.This can be useful for VOL developers to
+ * implement chunked or virtual datasets.
+ *
+ * \since 1.12.0
+ *
+ */
+H5_DLL hid_t H5Sselect_project_intersection(hid_t src_space_id,
+ hid_t dst_space_id, hid_t src_intersect_space_id);
+/*--------------------------------------------------------------------------*/
+/**\ingroup H5S
+ *
+ * \brief Checks if two selections are the same shape
+ *
+ * \space_id{space1_id}
+ * \space_id{space2_id}
+ *
+ * \return \htri_t
+ *
+ * \details H5Sselect_shape_same() checks to see if the current selection
+ * in the dataspaces are the same dimensionality and shape.
+ *
+ * This is primarily used for reading the entire selection in
+ * one swoop.
+ *
+ * \since 1.12.0
+ *
+ */
+H5_DLL htri_t H5Sselect_shape_same(hid_t space1_id, hid_t space2_id);
+/*--------------------------------------------------------------------------*/
+/**\ingroup H5S
+ *
+ * \brief Verifies that the selection is within the extent of the dataspace
+ *
+ * \space_id{spaceid}
+ *
+ * \return \htri_t
+ *
+ * \details H5Sselect_valid() verifies that the selection for the dataspace
+ * \p space_id is within the extent of the dataspace if the current
+ * offset for the dataspace is used.
+ *
+ * \version 1.4.0 Fortran subroutine introduced in this release.
+ * \since 1.0.0
+ *
+ */
+H5_DLL htri_t H5Sselect_valid(hid_t spaceid);
+/*--------------------------------------------------------------------------*/
+/**\ingroup H5S
+ *
+ * \brief Resets the extent of a dataspace back to "none"
+ *
+ * \space_id
+ *
+ * \return \herr_t
+ *
+ * \details H5Sset_extent_none() resets the type of a dataspace to
+ * #H5S_NULL with no extent information stored for the dataspace.
+ *
+ * \version 1.10.7, 1.12.1 The function behavior changed. The previous
+ * behavior was to set the class to #H5S_NO_CLASS.
+ * \version 1.4.0 Fortran subroutine was introduced.
+ * \since 1.0.0
+ *
+ */
+H5_DLL herr_t H5Sset_extent_none(hid_t space_id);
+/*--------------------------------------------------------------------------*/
+/**\ingroup H5S
+ *
+ * \brief Sets or resets the size of an existing dataspace
+ *
+ * \space_id
+ * \param[in] rank Rank, or dimensionality, of the dataspace
+ * \param[in] dims Array containing current size of dataspace
+ * \param[in] max Array containing maximum size of dataspace
+ *
+ * \return \herr_t
+ *
+ * \details H5Sset_extent_simple() sets or resets the size of an existing
+ * dataspace.
+ *
+ * \p rank is the dimensionality, or number of dimensions, of the
+ * dataspace.
+ *
+ * \p dims is an array of size \p rank which contains the new size
+ * of each dimension in the dataspace. \p max is an array of size
+ * \p rank which contains the maximum size of each dimension in
+ * the dataspace.
+ *
+ * Any previous extent is removed from the dataspace, the dataspace
+ * type is set to #H5S_SIMPLE, and the extent is set as specified.
+ *
+ * Note that a dataset must be chunked if \p dims does not equal
+ * \p max.
+ *
+ *
+ * \version 1.4.0 Fortran subroutine was introduced.
+ * \since 1.0.0
+ *
+ */
+H5_DLL herr_t H5Sset_extent_simple(hid_t space_id, int rank,
+ const hsize_t dims[], const hsize_t max[]);
/* Symbols defined for compatibility with previous versions of the HDF5 API.
*
@@ -447,6 +1350,47 @@ H5_DLL herr_t H5Ssel_iter_close(hid_t sel_iter_id);
*/
#ifndef H5_NO_DEPRECATED_SYMBOLS
/* Function prototypes */
+/* --------------------------------------------------------------------------*/
+/**\ingroup H5S
+ *
+ * \brief Encodes a data space object description into a binary buffer
+ *
+ * \space_id{obj_id}
+ * \param[in,out] buf Buffer for the object to be encoded into;
+ * If the provided buffer is NULL, only the size of
+ * buffer needed is returned through \p nalloc.
+ * \param[in,out] nalloc The size of the allocated buffer
+ *
+ * \return \herr_t
+ *
+ * \deprecated Deprecated in favor of H5Sencode2()
+ *
+ * \details Given the data space identifier \p obj_id, H5Sencode1() converts
+ * a data space description into binary form in a buffer. Using
+ * this binary form in the buffer, a data space object can be
+ * reconstructed using H5Sdecode() to return a new object handle
+ * (\p hid_t) for this data space.
+ *
+ * A preliminary H5Sencode1() call can be made to find out the size
+ * of the buffer needed. This value is returned as \p nalloc. That
+ * value can then be assigned to \p nalloc for a second H5Sencode1()
+ * call, which will retrieve the actual encoded object.
+ *
+ * If the library finds out \p nalloc is not big enough for the
+ * object, it simply returns the size of the buffer needed through
+ * \p nalloc without encoding the provided buffer.
+ *
+ * The types of data space addressed in this function are null,
+ * scalar, and simple space. For a simple data space, the information
+ * on the selection, for example, hyperslab selection, is also
+ * encoded and decoded. A complex data space has not been
+ * implemented in the library.
+ *
+ * \version 1.12.0 The function H5Sencode() was renamed H5Sencode1() and
+ * deprecated.
+ * \since 1.8.0
+ *
+ */
H5_DLL herr_t H5Sencode1(hid_t obj_id, void *buf, size_t *nalloc);
#endif /* H5_NO_DEPRECATED_SYMBOLS */