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authorRobb Matzke <matzke@llnl.gov>1998-08-17 18:08:00 (GMT)
committerRobb Matzke <matzke@llnl.gov>1998-08-17 18:08:00 (GMT)
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-/*
- * Copyright (C) 1998 NCSA
- * All rights reserved.
- *
- * Programmer: Robb Matzke <matzke@llnl.gov>
- * Wednesday, January 21, 1998
- *
- * Purpose: Simple selection data space I/O functions.
- */
-#include <H5private.h>
-#include <H5Eprivate.h>
-#include <H5Sprivate.h>
-#include <H5Vprivate.h>
-
-/* Interface initialization */
-#define PABLO_MASK H5S_simp_mask
-#define INTERFACE_INIT NULL
-static intn interface_initialize_g = FALSE;
-
-/*-------------------------------------------------------------------------
- * Function: H5S_simp_init
- *
- * Purpose: Generates element numbering information for the data
- * spaces involved in a data space conversion.
- *
- * Return: Success: Number of elements that can be efficiently
- * transferred at a time.
- *
- * Failure: Zero
- *
- * Programmer: Robb Matzke
- * Wednesday, January 21, 1998
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-size_t
-H5S_simp_init (const struct H5O_layout_t __unused__ *layout,
- const H5S_t *mem_space, const H5S_t *file_space,
- size_t desired_nelmts)
-{
- hsize_t nelmts;
- int m_ndims, f_ndims; /*mem, file dimensionality */
- hsize_t size[H5O_LAYOUT_NDIMS]; /*size of selected hyperslab */
- hsize_t acc;
- int i;
-
- FUNC_ENTER (H5S_simp_init, 0);
-
- /* Check args */
- assert (layout);
- assert (mem_space && H5S_SIMPLE==mem_space->extent.type);
- assert (file_space && H5S_SIMPLE==file_space->extent.type);
-
- /*
- * The stripmine size is such that only the slowest varying dimension can
- * be split up. We choose the largest possible strip mine size which is
- * not larger than the desired size.
- */
- m_ndims = H5S_get_hyperslab (mem_space, NULL, size, NULL);
- for (i=m_ndims-1, acc=1; i>0; --i) acc *= size[i];
- nelmts = (desired_nelmts/acc) * acc;
- if (nelmts<=0) {
- HRETURN_ERROR (H5E_IO, H5E_UNSUPPORTED, 0,
- "strip mine buffer is too small");
- }
-
- /*
- * The value chosen for mem_space must be the same as the value chosen for
- * file_space.
- */
- f_ndims = H5S_get_hyperslab (file_space, NULL, size, NULL);
- if (m_ndims!=f_ndims) {
- nelmts = H5S_select_npoints (file_space);
- if (nelmts>desired_nelmts) {
- HRETURN_ERROR (H5E_IO, H5E_UNSUPPORTED, 0,
- "strip mining not supported across dimensionalities");
- }
- assert (nelmts==H5S_select_npoints (mem_space));
- } else {
- for (i=f_ndims-1, acc=1; i>0; --i) acc *= size[i];
- acc *= (desired_nelmts/acc);
- if (nelmts!=acc) {
- HRETURN_ERROR (H5E_IO, H5E_UNSUPPORTED, 0,
- "unsupported strip mine size for shape change");
- }
- }
-
- assert (nelmts < MAX_SIZET);
- FUNC_LEAVE ((size_t)nelmts);
-}
-
-/*-------------------------------------------------------------------------
- * Function: H5S_simp_fgath
- *
- * Purpose: Gathers data points from file F and accumulates them in the
- * type conversion buffer BUF. The LAYOUT argument describes
- * how the data is stored on disk and EFL describes how the data
- * is organized in external files. ELMT_SIZE is the size in
- * bytes of a datum which this function treats as opaque.
- * FILE_SPACE describes the data space of the dataset on disk
- * and the elements that have been selected for reading (via
- * hyperslab, etc) and NUMBERING describes how those elements
- * are numbered (initialized by the H5S_*_init() call). This
- * function will copy at most NELMTS elements beginning at the
- * element numbered START.
- *
- * Return: Success: Number of elements copied.
- *
- * Failure: 0
- *
- * Programmer: Robb Matzke
- * Wednesday, January 21, 1998
- *
- * Modifications:
- * June 2, 1998 Albert Cheng
- * Added xfer_mode argument
- *
- *-------------------------------------------------------------------------
- */
-size_t
-H5S_simp_fgath (H5F_t *f, const struct H5O_layout_t *layout,
- const struct H5O_pline_t *pline, const struct H5O_efl_t *efl,
- size_t elmt_size, const H5S_t *file_space,
- size_t start, size_t nelmts,
- const H5D_transfer_t xfer_mode, void *buf/*out*/)
-{
- hssize_t file_offset[H5O_LAYOUT_NDIMS]; /*offset of slab in file*/
- hsize_t hsize[H5O_LAYOUT_NDIMS]; /*size of hyperslab */
- hssize_t zero[H5O_LAYOUT_NDIMS]; /*zero */
- hsize_t sample[H5O_LAYOUT_NDIMS]; /*hyperslab sampling */
- hsize_t acc; /*accumulator */
- intn space_ndims; /*dimensionality of space*/
- intn i; /*counters */
-
- FUNC_ENTER (H5S_simp_fgath, 0);
-
- /* Check args */
- assert (f);
- assert (layout);
- assert (elmt_size>0);
- assert (file_space);
- assert (nelmts>0);
- assert (buf);
-
- /*
- * Get hyperslab information to determine what elements are being
- * selected (there might eventually be other selection methods too).
- * We only support hyperslabs with unit sample because there's no way to
- * currently pass sample information into H5F_arr_read() much less
- * H5F_istore_read().
- */
- if ((space_ndims=H5S_get_hyperslab (file_space, file_offset,
- hsize, sample))<0) {
- HRETURN_ERROR (H5E_DATASPACE, H5E_CANTINIT, 0,
- "unable to retrieve hyperslab parameters");
- }
-
- /* Check that there is no subsampling of the hyperslab */
- for (i=0; i<space_ndims; i++) {
- if (sample[i]!=1) {
- HRETURN_ERROR (H5E_ARGS, H5E_BADVALUE, 0,
- "hyperslab sampling is not implemented yet");
- }
- }
-
- /* Adjust the slowest varying dimension to take care of strip mining */
- for (i=1, acc=1; i<space_ndims; i++) acc *= hsize[i];
- assert (0==start % acc);
- assert (0==nelmts % acc);
- file_offset[0] += start / acc;
- hsize[0] = nelmts / acc;
-
- /* The fastest varying dimension is for the data point itself */
- file_offset[space_ndims] = 0;
- hsize[space_ndims] = elmt_size;
- HDmemset (zero, 0, layout->ndims*sizeof(*zero));
-
- /*
- * Gather from file.
- */
- if (H5F_arr_read (f, layout, pline, efl, hsize, hsize, zero, file_offset,
- xfer_mode, buf/*out*/)<0) {
- HRETURN_ERROR (H5E_DATASPACE, H5E_READERROR, 0, "read error");
- }
-
- FUNC_LEAVE (nelmts);
-}
-
-/*-------------------------------------------------------------------------
- * Function: H5S_simp_mscat
- *
- * Purpose: Scatters data points from the type conversion buffer
- * TCONV_BUF to the application buffer BUF. Each element is
- * ELMT_SIZE bytes and they are organized in application memory
- * according to MEM_SPACE. The NUMBERING information together
- * with START and NELMTS describe how the elements stored in
- * TCONV_BUF are globally numbered.
- *
- * Return: Success: SUCCEED
- *
- * Failure: FAIL
- *
- * Programmer: Robb Matzke
- * Wednesday, January 21, 1998
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-herr_t
-H5S_simp_mscat (const void *tconv_buf, size_t elmt_size,
- const H5S_t *mem_space,
- size_t start, size_t nelmts, void *buf/*out*/)
-{
- hssize_t mem_offset[H5O_LAYOUT_NDIMS]; /*slab offset in app buf*/
- hsize_t mem_size[H5O_LAYOUT_NDIMS]; /*total size of app buf */
- hsize_t hsize[H5O_LAYOUT_NDIMS]; /*size of hyperslab */
- hssize_t zero[H5O_LAYOUT_NDIMS]; /*zero */
- hsize_t sample[H5O_LAYOUT_NDIMS]; /*hyperslab sampling */
- hsize_t acc; /*accumulator */
- intn space_ndims; /*dimensionality of space*/
- intn i; /*counters */
-
- FUNC_ENTER (H5S_simp_mscat, FAIL);
-
- /* Check args */
- assert (tconv_buf);
- assert (elmt_size>0);
- assert (mem_space && H5S_SIMPLE==mem_space->extent.type);
- assert (nelmts>0);
- assert (buf);
-
- /*
- * Retrieve hyperslab information to determine what elements are being
- * selected (there might be other selection methods in the future). We
- * only handle hyperslabs with unit sample because there's currently no
- * way to pass sample information to H5V_hyper_copy().
- */
- if ((space_ndims=H5S_get_hyperslab (mem_space, mem_offset, hsize,
- sample))<0) {
- HRETURN_ERROR (H5E_DATASPACE, H5E_CANTINIT, FAIL,
- "unable to retrieve hyperslab parameters");
- }
-
- /* Check that there is no subsampling of the hyperslab */
- for (i=0; i<space_ndims; i++) {
- if (sample[i]!=1) {
- HRETURN_ERROR (H5E_ARGS, H5E_BADVALUE, FAIL,
- "hyperslab sampling is not implemented yet");
- }
- }
- if (H5S_extent_dims (mem_space, mem_size, NULL)<0) {
- HRETURN_ERROR (H5E_DATASPACE, H5E_CANTINIT, FAIL,
- "unable to retrieve data space dimensions");
- }
-
- /* Adjust the slowest varying dimension to take care of strip mining */
- for (i=1, acc=1; i<space_ndims; i++) acc *= hsize[i];
- assert (0==start % acc);
- assert (0==nelmts % acc);
- mem_offset[0] += start / acc;
- hsize[0] = nelmts / acc;
-
- /* The fastest varying dimension is for the data point itself */
- mem_offset[space_ndims] = 0;
- mem_size[space_ndims] = elmt_size;
- hsize[space_ndims] = elmt_size;
- HDmemset (zero, 0, (space_ndims+1)*sizeof(*zero));
-
- /*
- * Scatter from conversion buffer to application memory.
- */
- if (H5V_hyper_copy (space_ndims+1, hsize, mem_size, mem_offset, buf,
- hsize, zero, tconv_buf)<0) {
- HRETURN_ERROR (H5E_DATASPACE, H5E_CANTINIT, FAIL,
- "unable to scatter data to memory");
- }
-
- FUNC_LEAVE (SUCCEED);
-}
-
-/*-------------------------------------------------------------------------
- * Function: H5S_simp_mgath
- *
- * Purpose: Gathers dataset elements from application memory BUF and
- * copies them into the data type conversion buffer TCONV_BUF.
- * Each element is ELMT_SIZE bytes and arranged in application
- * memory according to MEM_SPACE. The elements selected from
- * BUF by MEM_SPACE are numbered according to NUMBERING and the
- * caller is requesting that at most NELMTS be gathered
- * beginning with number START. The elements are packed into
- * TCONV_BUF in order of their NUMBERING.
- *
- * Return: Success: Number of elements copied.
- *
- * Failure: 0
- *
- * Programmer: Robb Matzke
- * Wednesday, January 21, 1998
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-size_t
-H5S_simp_mgath (const void *buf, size_t elmt_size,
- const H5S_t *mem_space,
- size_t start, size_t nelmts, void *tconv_buf/*out*/)
-{
- hssize_t mem_offset[H5O_LAYOUT_NDIMS]; /*slab offset in app buf*/
- hsize_t mem_size[H5O_LAYOUT_NDIMS]; /*total size of app buf */
- hsize_t hsize[H5O_LAYOUT_NDIMS]; /*size of hyperslab */
- hssize_t zero[H5O_LAYOUT_NDIMS]; /*zero */
- hsize_t sample[H5O_LAYOUT_NDIMS]; /*hyperslab sampling */
- hsize_t acc; /*accumulator */
- intn space_ndims; /*dimensionality of space*/
- intn i; /*counters */
-
- FUNC_ENTER (H5S_simp_mgath, 0);
-
- /* Check args */
- assert (buf);
- assert (elmt_size>0);
- assert (mem_space && H5S_SIMPLE==mem_space->extent.type);
- assert (nelmts>0);
- assert (tconv_buf);
-
- /*
- * Retrieve hyperslab information to determine what elements are being
- * selected (there might be other selection methods in the future). We
- * only handle hyperslabs with unit sample because there's currently no
- * way to pass sample information to H5V_hyper_copy().
- */
- if ((space_ndims=H5S_get_hyperslab (mem_space, mem_offset, hsize,
- sample))<0) {
- HRETURN_ERROR (H5E_DATASPACE, H5E_CANTINIT, 0,
- "unable to retrieve hyperslab parameters");
- }
-
- /* Check that there is no subsampling of the hyperslab */
- for (i=0; i<space_ndims; i++) {
- if (sample[i]!=1) {
- HRETURN_ERROR (H5E_ARGS, H5E_BADVALUE, 0,
- "hyperslab sampling is not implemented yet");
- }
- }
- if (H5S_extent_dims (mem_space, mem_size, NULL)<0) {
- HRETURN_ERROR (H5E_DATASPACE, H5E_CANTINIT, 0,
- "unable to retrieve data space dimensions");
- }
-
- /* Adjust the slowest varying dimension to account for strip mining */
- for (i=1, acc=1; i<space_ndims; i++) acc *= hsize[i];
- assert (0==start % acc);
- assert (0==nelmts % acc);
- mem_offset[0] += start / acc;
- hsize[0] = nelmts / acc;
-
- /* The fastest varying dimension is for the data point itself */
- mem_offset[space_ndims] = 0;
- mem_size[space_ndims] = elmt_size;
- hsize[space_ndims] = elmt_size;
- HDmemset (zero, 0, (space_ndims+1)*sizeof(*zero));
-
- /*
- * Scatter from conversion buffer to application memory.
- */
- if (H5V_hyper_copy (space_ndims+1, hsize, hsize, zero, tconv_buf,
- mem_size, mem_offset, buf)<0) {
- HRETURN_ERROR (H5E_DATASPACE, H5E_CANTINIT, 0,
- "unable to scatter data to memory");
- }
-
- FUNC_LEAVE (nelmts);
-}
-
-/*-------------------------------------------------------------------------
- * Function: H5S_simp_fscat
- *
- * Purpose: Scatters dataset elements from the type conversion buffer BUF
- * to the file F where the data points are arranged according to
- * the file data space FILE_SPACE and stored according to
- * LAYOUT and EFL. Each element is ELMT_SIZE bytes and has a
- * unique number according to NUMBERING. The caller is
- * requesting that NELMTS elements are coppied beginning with
- * element number START.
- *
- * Return: Success: SUCCEED
- *
- * Failure: FAIL
- *
- * Programmer: Robb Matzke
- * Wednesday, January 21, 1998
- *
- * Modifications:
- * June 2, 1998 Albert Cheng
- * Added xfer_mode argument
- *
- *-------------------------------------------------------------------------
- */
-herr_t
-H5S_simp_fscat (H5F_t *f, const struct H5O_layout_t *layout,
- const struct H5O_pline_t *pline, const struct H5O_efl_t *efl,
- size_t elmt_size, const H5S_t *file_space,
- size_t start, size_t nelmts,
- const H5D_transfer_t xfer_mode, const void *buf)
-{
- hssize_t file_offset[H5O_LAYOUT_NDIMS]; /*offset of hyperslab */
- hsize_t hsize[H5O_LAYOUT_NDIMS]; /*size of hyperslab */
- hssize_t zero[H5O_LAYOUT_NDIMS]; /*zero vector */
- hsize_t sample[H5O_LAYOUT_NDIMS]; /*hyperslab sampling */
- hsize_t acc; /*accumulator */
- intn space_ndims; /*space dimensionality */
- intn i; /*counters */
-
- FUNC_ENTER (H5S_simp_fscat, FAIL);
-
- /* Check args */
- assert (f);
- assert (layout);
- assert (elmt_size>0);
- assert (file_space);
- assert (nelmts>0);
- assert (buf);
-
- /*
- * Get hyperslab information to determine what elements are being
- * selected (there might eventually be other selection methods too).
- * We only support hyperslabs with unit sample because there's no way to
- * currently pass sample information into H5F_arr_read() much less
- * H5F_istore_read().
- */
- if ((space_ndims=H5S_get_hyperslab (file_space, file_offset, hsize,
- sample))<0) {
- HRETURN_ERROR (H5E_DATASPACE, H5E_CANTINIT, FAIL,
- "unable to retrieve hyperslab parameters");
- }
-
- /* Check that there is no subsampling of the hyperslab */
- for (i=0; i<space_ndims; i++) {
- if (sample[i]!=1) {
- HRETURN_ERROR (H5E_ARGS, H5E_BADVALUE, FAIL,
- "hyperslab sampling is not implemented yet");
- }
- }
-
- /* Adjust the slowest varying dimension to account for strip mining */
- for (i=1, acc=1; i<space_ndims; i++) acc *= hsize[i];
- assert (0==start % acc);
- assert (0==nelmts % acc);
- file_offset[0] += start / acc;
- hsize[0] = nelmts / acc;
-
- /* The fastest varying dimension is for the data point itself */
- file_offset[space_ndims] = 0;
- hsize[space_ndims] = elmt_size;
- HDmemset (zero, 0, layout->ndims*sizeof(*zero));
-
- /*
- * Scatter to file.
- */
- if (H5F_arr_write (f, layout, pline, efl, hsize, hsize, zero,
- file_offset, xfer_mode, buf)<0) {
- HRETURN_ERROR (H5E_DATASPACE, H5E_WRITEERROR, FAIL, "write error");
- }
-
- FUNC_LEAVE (SUCCEED);
-}
-
-
-/*-------------------------------------------------------------------------
- * Function: H5S_simp_read
- *
- * Purpose: Reads a dataset from file F directly into application memory
- * BUF performing data space conversion in a single step from
- * FILE_SPACE to MEM_SPACE. The dataset is stored in the file
- * according to the LAYOUT and EFL (external file list) and data
- * point in the file is ELMT_SIZE bytes.
- *
- * Return: Success: SUCCEED
- *
- * Failure: FAIL
- *
- * Programmer: Robb Matzke
- * Thursday, March 12, 1998
- *
- * Modifications:
- * June 2, 1998 Albert Cheng
- * Added xfer_mode argument
- *
- *-------------------------------------------------------------------------
- */
-herr_t
-H5S_simp_read (H5F_t *f, const struct H5O_layout_t *layout,
- const struct H5O_pline_t *pline, const struct H5O_efl_t *efl,
- size_t elmt_size, const H5S_t *file_space,
- const H5S_t *mem_space, const H5D_transfer_t xfer_mode,
- void *buf/*out*/)
-{
- hssize_t file_offset[H5O_LAYOUT_NDIMS];
- hsize_t hslab_size[H5O_LAYOUT_NDIMS];
- hssize_t mem_offset[H5O_LAYOUT_NDIMS];
- hsize_t mem_size[H5O_LAYOUT_NDIMS];
- int i;
-
- FUNC_ENTER (H5S_simp_read, FAIL);
-
-#ifndef NDEBUG
- assert (file_space->extent.type==mem_space->extent.type);
- assert (file_space->extent.u.simple.rank==mem_space->extent.u.simple.rank);
- for (i=0; i<file_space->extent.u.simple.rank; i++) {
-#ifdef FIXME
- if (file_space->hslab_def && mem_space->hslab_def) {
- assert (1==file_space->h.stride[i]);
- assert (1==mem_space->h.stride[i]);
- assert (file_space->h.count[i]==mem_space->h.count[i]);
- } else if (file_space->hslab_def) {
- assert (1==file_space->h.stride[i]);
- assert (file_space->h.count[i]==mem_space->u.simple.size[i]);
- } else if (mem_space->hslab_def) {
- assert (1==mem_space->h.stride[i]);
- assert (file_space->u.simple.size[i]==mem_space->h.count[i]);
- } else {
- assert (file_space->u.simple.size[i]==
- mem_space->u.simple.size[i]);
- }
-#endif
- }
-#endif
-
-
- /*
- * Calculate size of hyperslab and offset of hyperslab into file and
- * memory.
- */
- switch(file_space->select.type) {
- case H5S_SEL_NONE: /* no selection defined */
- HRETURN_ERROR (H5E_DATASPACE, H5E_BADVALUE, FAIL,
- "selection not defined");
-
- case H5S_SEL_POINTS: /* point sequence selection defined */
- case H5S_SEL_HYPERSLABS: /* hyperslab selection defined */
- HRETURN_ERROR (H5E_DATASPACE, H5E_UNSUPPORTED, FAIL,
- "selection type not supprted currently");
-
- case H5S_SEL_ALL: /* entire dataspace selection */
- for (i=0; i<file_space->extent.u.simple.rank; i++)
- hslab_size[i] = file_space->extent.u.simple.size[i];
- break;
- } /* end switch */
-
- switch(mem_space->select.type) {
- case H5S_SEL_NONE: /* no selection defined */
- HRETURN_ERROR (H5E_DATASPACE, H5E_BADVALUE, FAIL,
- "selection not defined");
-
- case H5S_SEL_POINTS: /* point sequence selection defined */
- case H5S_SEL_HYPERSLABS: /* hyperslab selection defined */
- HRETURN_ERROR (H5E_DATASPACE, H5E_UNSUPPORTED, FAIL,
- "selection type not supprted currently");
-
- case H5S_SEL_ALL: /* entire dataspace selection */
- for (i=0; i<mem_space->extent.u.simple.rank; i++)
- mem_size[i] = mem_space->extent.u.simple.size[i];
- break;
- } /* end switch */
-
- switch(file_space->select.type) {
- case H5S_SEL_NONE: /* no selection defined */
- HRETURN_ERROR (H5E_DATASPACE, H5E_BADVALUE, FAIL,
- "selection not defined");
-
- case H5S_SEL_POINTS: /* point sequence selection defined */
- case H5S_SEL_HYPERSLABS: /* hyperslab selection defined */
-#ifdef LATER
- for (i=0; i<file_space->u.simple.rank; i++)
- file_offset[i] = file_space->h.start[i];
-#endif
- HRETURN_ERROR (H5E_DATASPACE, H5E_UNSUPPORTED, FAIL,
- "selection type not supprted currently");
-
- case H5S_SEL_ALL: /* entire dataspace selection */
- for (i=0; i<file_space->extent.u.simple.rank; i++)
- file_offset[i] = 0;
- break;
- } /* end switch */
-
- switch(mem_space->select.type) {
- case H5S_SEL_NONE: /* no selection defined */
- HRETURN_ERROR (H5E_DATASPACE, H5E_BADVALUE, FAIL,
- "selection not defined");
-
- case H5S_SEL_POINTS: /* point sequence selection defined */
- case H5S_SEL_HYPERSLABS: /* hyperslab selection defined */
-#ifdef LATER
- for (i=0; i<mem_space->u.simple.rank; i++)
- mem_offset[i] = mem_space->h.start[i];
-#endif
- HRETURN_ERROR (H5E_DATASPACE, H5E_UNSUPPORTED, FAIL,
- "selection type not supprted currently");
-
- case H5S_SEL_ALL: /* entire dataspace selection */
- for (i=0; i<mem_space->extent.u.simple.rank; i++)
- mem_offset[i] = 0;
- break;
- } /* end switch */
-
- hslab_size[file_space->extent.u.simple.rank] = elmt_size;
- mem_size[file_space->extent.u.simple.rank] = elmt_size;
- file_offset[file_space->extent.u.simple.rank] = 0;
- mem_offset[file_space->extent.u.simple.rank] = 0;
-
- /* Read the hyperslab */
- if (H5F_arr_read (f, layout, pline, efl, hslab_size,
- mem_size, mem_offset, file_offset, xfer_mode, buf)<0) {
- HRETURN_ERROR (H5E_IO, H5E_READERROR, FAIL, "unable to read dataset");
- }
-
- FUNC_LEAVE (SUCCEED);
-}
-
-
-/*-------------------------------------------------------------------------
- * Function: H5S_simp_write
- *
- * Purpose: Write a dataset from application memory BUF directly into
- * file F performing data space conversion in a single step from
- * MEM_SPACE to FILE_SPACE. The dataset is stored in the file
- * according to the LAYOUT and EFL (external file list) and data
- * point in the file is ELMT_SIZE bytes.
- *
- * Return: Success: SUCCEED
- *
- * Failure: FAIL
- *
- * Programmer: Robb Matzke
- * Thursday, March 12, 1998
- *
- * Modifications:
- * June 2, 1998 Albert Cheng
- * Added xfer_mode argument
- *
- *-------------------------------------------------------------------------
- */
-herr_t
-H5S_simp_write (H5F_t *f, const struct H5O_layout_t *layout,
- const struct H5O_pline_t *pline, const struct H5O_efl_t *efl,
- size_t elmt_size, const H5S_t *file_space,
- const H5S_t *mem_space, const H5D_transfer_t xfer_mode,
- const void *buf)
-{
- hssize_t file_offset[H5O_LAYOUT_NDIMS];
- hsize_t hslab_size[H5O_LAYOUT_NDIMS];
- hssize_t mem_offset[H5O_LAYOUT_NDIMS];
- hsize_t mem_size[H5O_LAYOUT_NDIMS];
- int i;
-
- FUNC_ENTER (H5S_simp_write, FAIL);
-
-#ifndef NDEBUG
- assert (file_space->extent.type==mem_space->extent.type);
- assert (file_space->extent.u.simple.rank==mem_space->extent.u.simple.rank);
-#ifdef LATER
- for (i=0; i<file_space->u.simple.rank; i++) {
- if (file_space->hslab_def && mem_space->hslab_def) {
- assert (1==file_space->h.stride[i]);
- assert (1==mem_space->h.stride[i]);
- assert (file_space->h.count[i]==mem_space->h.count[i]);
- } else if (file_space->hslab_def) {
- assert (1==file_space->h.stride[i]);
- assert (file_space->h.count[i]==mem_space->u.simple.size[i]);
- } else if (mem_space->hslab_def) {
- assert (1==mem_space->h.stride[i]);
- assert (file_space->u.simple.size[i]==mem_space->h.count[i]);
- } else {
- assert (file_space->u.simple.size[i]==
- mem_space->u.simple.size[i]);
- }
- }
-#endif
-#endif
-
-
- /*
- * Calculate size of hyperslab and offset of hyperslab into file and
- * memory.
- */
- switch(file_space->select.type) {
- case H5S_SEL_NONE: /* no selection defined */
- HRETURN_ERROR (H5E_DATASPACE, H5E_BADVALUE, FAIL,
- "selection not defined");
-
- case H5S_SEL_POINTS: /* point sequence selection defined */
- case H5S_SEL_HYPERSLABS: /* hyperslab selection defined */
- HRETURN_ERROR (H5E_DATASPACE, H5E_UNSUPPORTED, FAIL,
- "selection type not supprted currently");
-
- case H5S_SEL_ALL: /* entire dataspace selection */
- for (i=0; i<file_space->extent.u.simple.rank; i++)
- hslab_size[i] = file_space->extent.u.simple.size[i];
- break;
- } /* end switch */
-
- switch(mem_space->select.type) {
- case H5S_SEL_NONE: /* no selection defined */
- HRETURN_ERROR (H5E_DATASPACE, H5E_BADVALUE, FAIL,
- "selection not defined");
-
- case H5S_SEL_POINTS: /* point sequence selection defined */
- case H5S_SEL_HYPERSLABS: /* hyperslab selection defined */
- HRETURN_ERROR (H5E_DATASPACE, H5E_UNSUPPORTED, FAIL,
- "selection type not supprted currently");
-
- case H5S_SEL_ALL: /* entire dataspace selection */
- for (i=0; i<mem_space->extent.u.simple.rank; i++)
- mem_size[i] = mem_space->extent.u.simple.size[i];
- break;
- } /* end switch */
-
- switch(file_space->select.type) {
- case H5S_SEL_NONE: /* no selection defined */
- HRETURN_ERROR (H5E_DATASPACE, H5E_BADVALUE, FAIL,
- "selection not defined");
-
- case H5S_SEL_POINTS: /* point sequence selection defined */
- case H5S_SEL_HYPERSLABS: /* hyperslab selection defined */
-#ifdef LATER
- for (i=0; i<file_space->u.simple.rank; i++)
- file_offset[i] = file_space->h.start[i];
-#endif
- HRETURN_ERROR (H5E_DATASPACE, H5E_UNSUPPORTED, FAIL,
- "selection type not supprted currently");
-
- case H5S_SEL_ALL: /* entire dataspace selection */
- for (i=0; i<file_space->extent.u.simple.rank; i++)
- file_offset[i] = 0;
- break;
- } /* end switch */
-
- switch(mem_space->select.type) {
- case H5S_SEL_NONE: /* no selection defined */
- HRETURN_ERROR (H5E_DATASPACE, H5E_BADVALUE, FAIL,
- "selection not defined");
-
- case H5S_SEL_POINTS: /* point sequence selection defined */
- case H5S_SEL_HYPERSLABS: /* hyperslab selection defined */
-#ifdef LATER
- for (i=0; i<mem_space->u.simple.rank; i++)
- mem_offset[i] = mem_space->h.start[i];
-#endif
- HRETURN_ERROR (H5E_DATASPACE, H5E_UNSUPPORTED, FAIL,
- "selection type not supprted currently");
-
- case H5S_SEL_ALL: /* entire dataspace selection */
- for (i=0; i<mem_space->extent.u.simple.rank; i++)
- mem_offset[i] = 0;
- break;
- } /* end switch */
-
- hslab_size[file_space->extent.u.simple.rank] = elmt_size;
- mem_size[file_space->extent.u.simple.rank] = elmt_size;
- file_offset[file_space->extent.u.simple.rank] = 0;
- mem_offset[file_space->extent.u.simple.rank] = 0;
-
- /* Write the hyperslab */
- if (H5F_arr_write (f, layout, pline, efl, hslab_size,
- mem_size, mem_offset, file_offset, xfer_mode, buf)<0) {
- HRETURN_ERROR (H5E_IO, H5E_WRITEERROR, FAIL,
- "unable to write dataset");
- }
-
- FUNC_LEAVE (SUCCEED);
-}
-