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c75ca861ec
hdf5/tools/lib/h5tools.c
Bill Wendling c75ca861ec [svn-r3795] Purpose: 
Update
Description:
    Updated the way the subsetting data is retrieved. It now does it one
    row of blocks at a time. It may still run out of memory, but this is
    at least a good first step.

    Also, the start parameter defaults to (0, 0, ...) if it isn't
    specified.
Platforms tested:
    Linux
2001-04-10 14:54:08 -05:00

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/*
* Copyright (c) 1998-2001 National Center for Supercomputing Applications
* All rights reserved.
*
* Programmer: Robb Matzke <matzke@llnl.gov>
* Thursday, July 23, 1998
*
* Purpose: A library for displaying the values of a dataset in a human
* readable format.
*/
#include <stdio.h>
#include <stdlib.h>
#include "h5tools.h"
#include "h5tools_str.h"
#include "h5tools_utils.h"
#include "hdf5.h"
#include "H5private.h"
/*
* The output functions need a temporary buffer to hold a piece of the
* dataset while it's being printed. This constant sets the limit on the
* size of that temporary buffer in bytes. For efficiency's sake, choose the
* largest value suitable for your machine (for testing use a small value).
*/
#if 1
#define H5TOOLS_BUFSIZE (1024 * 1024)
#else
#define H5TOOLS_BUFSIZE (1024)
#endif /* 1 */
#define ALIGN(A,Z) ((((A) + (Z) - 1) / (Z)) * (Z))
#define START_OF_DATA 0x0001
#define END_OF_DATA 0x0002
/* global variables */
int indent;
int compound_data;
FILE *rawdatastream; /* should initialize to stdout but gcc moans about it */
/* module-scoped variables */
static int h5tools_init_g; /* if h5tools lib has been initialized */
/*-------------------------------------------------------------------------
* Audience: Public
* Chapter: H5Tools Library
* Purpose: Initialize the H5 Tools library
* Description:
* This should be called before any other h5tools function is called.
* Effect of any h5tools function called before this has been called is
* undetermined.
* Return:
* None
* Programmer:
* Albert Cheng, 2000-10-31
* Modifications:
*-------------------------------------------------------------------------
*/
void
h5tools_init(void)
{
if (!h5tools_init_g) {
if (!rawdatastream)
rawdatastream = stdout;
h5tools_init_g++;
}
}
/*-------------------------------------------------------------------------
* Audience: Public
* Chapter: H5Tools Library
* Purpose: Close the H5 Tools library
* Description:
* Close or release resources such as files opened by the library. This
* should be called after all other h5tools functions have been called.
* Effect of any h5tools function called after this has been called is
* undetermined.
* Return:
* None
* Programmer:
* Albert Cheng, 2000-10-31
* Modifications:
*-------------------------------------------------------------------------
*/
void
h5tools_close(void)
{
if (h5tools_init_g) {
if (rawdatastream && rawdatastream != stdout) {
if (fclose(rawdatastream))
perror("closing rawdatastream");
else
rawdatastream = NULL;
}
h5tools_init_g = 0;
}
}
/*-------------------------------------------------------------------------
* Audience: Public
* Chapter: H5Tools Library
* Purpose: Open a file with various VFL drivers.
* Description:
* Loop through the various types of VFL drivers trying to open FNAME.
* If the HDF5 library is version 1.2 or less, then we have only the SEC2
* driver to try out. If the HDF5 library is greater than version 1.2,
* then we have the FAMILY, SPLIT, and MULTI drivers to play with (and
* the STREAM driver if H5_HAVE_STREAM is defined, that is).
* Return:
* On success, returns a file id for the opened file. If DRIVERNAME is
* non-null then the first DRIVERNAME_SIZE-1 characters of the driver
* name are copied into the DRIVERNAME array and null terminated.
*
* Otherwise, the function returns FAIL. If DRIVERNAME is non-null then
* the first byte is set to the null terminator.
* Programmer:
* Lost in the mists of time.
* Modifications:
* Robb Matzke, 2000-06-23
* We only have to initialize driver[] on the first call, thereby
* preventing memory leaks from repeated calls to H5Pcreate().
*
* Robb Matzke, 2000-06-23
* Added DRIVERNAME_SIZE arg to prevent overflows when writing to
* DRIVERNAME.
*
* Robb Matzke, 2000-06-23
* Added test to prevent coredump when the file could not be opened by
* any driver.
*
* Robb Matzke, 2000-06-23
* Changed name from H5ToolsFopen() so it jives better with the names we
* already have at the top of this source file.
*
* Thomas Radke, 2000-09-12
* Added Stream VFD to the driver[] array.
*
* Bill Wendling, 2001-01-10
* Changed macro behavior so that if we have a version other than 1.2.x
* (i.e., > 1.2), then we do the drivers check.
*-------------------------------------------------------------------------
*/
hid_t
h5tools_fopen(const char *fname, char *drivername, size_t drivername_size)
{
static struct {
const char *name;
hid_t fapl;
} driver[16];
static int ndrivers = 0;
register int drivernum;
hid_t fid = -1;
#ifndef VERSION12
hid_t fapl = H5P_DEFAULT;
#endif /* !VERSION12 */
if (!ndrivers) {
/* Build a list of file access property lists which we should try
* when opening the file. Eventually we'd like some way for the
* user to augment/replace this list interactively. */
driver[ndrivers].name = "sec2";
driver[ndrivers].fapl = H5P_DEFAULT;
ndrivers++;
#ifndef VERSION12
driver[ndrivers].name = "family";
driver[ndrivers].fapl = fapl = H5Pcreate(H5P_FILE_ACCESS);
H5Pset_fapl_family(fapl, (hsize_t)0, H5P_DEFAULT);
ndrivers++;
driver[ndrivers].name = "split";
driver[ndrivers].fapl = fapl = H5Pcreate(H5P_FILE_ACCESS);
H5Pset_fapl_split(fapl, "-m.h5", H5P_DEFAULT, "-r.h5", H5P_DEFAULT);
ndrivers++;
driver[ndrivers].name = "multi";
driver[ndrivers].fapl = fapl = H5Pcreate(H5P_FILE_ACCESS);
H5Pset_fapl_multi(fapl, NULL, NULL, NULL, NULL, TRUE);
ndrivers++;
#ifdef H5_HAVE_STREAM
driver[ndrivers].name = "stream";
driver[ndrivers].fapl = fapl = H5Pcreate(H5P_FILE_ACCESS);
H5Pset_fapl_stream(fapl, NULL);
ndrivers++;
#endif /* H5_HAVE_STREAM */
#endif /* !VERSION12 */
}
/* Try to open the file using each of the drivers */
for (drivernum = 0; drivernum < ndrivers; drivernum++) {
H5E_BEGIN_TRY {
fid = H5Fopen(fname, H5F_ACC_RDONLY, driver[drivernum].fapl);
} H5E_END_TRY;
if (fid >= 0)
break;
}
/* Save the driver name */
if (drivername && drivername_size) {
if (fid >= 0) {
strncpy(drivername, driver[drivernum].name, drivername_size);
drivername[drivername_size - 1] = '\0';
} else {
/*no file opened*/
drivername[0] = '\0';
}
}
return fid;
}
/*-------------------------------------------------------------------------
* Audience: Public
* Chapter: H5Tools Library
* Purpose: Count the number of columns in a string.
* Description:
* Count the number of columns in a string. This is the number of
* characters in the string not counting line-control characters.
* Return:
* On success, returns the width of the string. Otherwise this function
* returns 0.
* Programmer:
* Robb Matzke, Tuesday, April 27, 1999
* Modifications:
*-------------------------------------------------------------------------
*/
static size_t
h5tools_ncols(const char *s)
{
register size_t i;
for (i = 0; *s; s++)
if (*s >= ' ')
i++;
return i;
}
/*-------------------------------------------------------------------------
* Audience: Public
* Chapter: H5Tools Library
* Purpose: Emit a simple prefix to STREAM.
* Description:
* If /ctx->need_prefix/ is set then terminate the current line (if
* applicable), calculate the prefix string, and display it at the start
* of a line.
* Return:
* None
* Programmer:
* Robb Matzke, Monday, April 26, 1999
* Modifications:
* Robb Matzke, 1999-09-29
* If a new prefix is printed then the current element number is set back
* to zero.
*-------------------------------------------------------------------------
*/
static void
h5tools_simple_prefix(FILE *stream, const h5dump_t *info,
h5tools_context_t *ctx, hsize_t elmtno, int secnum)
{
h5tools_str_t prefix;
size_t templength = 0;
int i, indentlevel = 0;
if (!ctx->need_prefix)
return;
memset(&prefix, 0, sizeof(h5tools_str_t));
/* Terminate previous line, if any */
if (ctx->cur_column) {
fputs(OPT(info->line_suf, ""), stream);
putc('\n', stream);
fputs(OPT(info->line_sep, ""), stream);
}
/* Calculate new prefix */
h5tools_str_prefix(&prefix, info, elmtno, ctx->ndims, ctx->p_min_idx,
ctx->p_max_idx);
/* Write new prefix to output */
if (ctx->indent_level >= 0) {
indentlevel = ctx->indent_level;
} else {
/*
* This is because sometimes we don't print out all the header
* info for the data (like the tattr-2.ddl example). If that happens
* the ctx->indent_level is negative so we need to skip the above and
* just print out the default indent levels.
*/
indentlevel = ctx->default_indent_level;
}
if (elmtno == 0 && secnum == 0 && info->line_1st)
fputs(h5tools_str_fmt(&prefix, 0, info->line_1st), stream);
else if (secnum && info->line_cont)
fputs(h5tools_str_fmt(&prefix, 0, info->line_cont), stream);
else
fputs(h5tools_str_fmt(&prefix, 0, info->line_pre), stream);
templength = h5tools_str_len(&prefix);
for (i = 0; i < indentlevel; i++){
fputs(h5tools_str_fmt(&prefix, 0, info->line_indent), stream);
templength += h5tools_str_len(&prefix);
}
ctx->cur_column = ctx->prev_prefix_len = templength;
ctx->cur_elmt = 0;
ctx->need_prefix = 0;
/* Free string */
h5tools_str_close(&prefix);
}
/*-------------------------------------------------------------------------
* Audience: Public
* Chapter: H5Tools Library
* Purpose: Prints NELMTS data elements to output STREAM.
* Description:
* Prints some (NELMTS) data elements to output STREAM. The elements are
* stored in _MEM as type TYPE and are printed according to the format
* described in INFO. The CTX struct contains context information shared
* between calls to this function. The FLAGS is a bit field that
* indicates whether the data supplied in this call falls at the
* beginning or end of the total data to be printed (START_OF_DATA and
* END_OF_DATA).
* Return:
* None
* Programmer:
* Robb Matzke, Monday, April 26, 1999
* Modifications:
* Robb Matzke, 1999-06-04
* The `container' argument is the optional dataset for reference types.
*
* Robb Matzke, 1999-09-29
* Understands the `per_line' property which indicates that every Nth
* element should begin a new line.
*-------------------------------------------------------------------------
*/
static void
h5tools_dump_simple_data(FILE *stream, const h5dump_t *info, hid_t container,
h5tools_context_t *ctx/*in,out*/, unsigned flags,
hsize_t nelmts, hid_t type, void *_mem)
{
unsigned char *mem = (unsigned char*)_mem;
hsize_t i; /*element counter */
char *s, *section; /*a section of output */
int secnum; /*section sequence number */
size_t size; /*size of each datum */
size_t ncols = 80; /*available output width */
h5tools_str_t buffer; /*string into which to render */
int multiline; /*datum was multiline */
int elmt_counter = 0;/*counts the # elements printed.
*I (ptl?) needed something that
*isn't going to get reset when a new
*line is formed. I'm going to use
*this var to count elements and
*break after we see a number equal
*to the ctx->size_last_dim. */
/* Setup */
memset(&buffer, 0, sizeof(h5tools_str_t));
size = H5Tget_size(type);
if (info->line_ncols > 0)
ncols = info->line_ncols;
h5tools_simple_prefix(stream, info, ctx, (hsize_t)0, 0);
for (i = 0; i < nelmts; i++, ctx->cur_elmt++, elmt_counter++) {
/* Render the element */
h5tools_str_reset(&buffer);
h5tools_str_sprint(&buffer, info, container, type, mem + i * size, ctx);
if (i + 1 < nelmts || (flags & END_OF_DATA) == 0)
h5tools_str_append(&buffer, "%s", OPT(info->elmt_suf1, ","));
s = h5tools_str_fmt(&buffer, 0, "%s");
/*
* If the element would split on multiple lines if printed at our
* current location...
*/
if (info->line_multi_new == 1 &&
(ctx->cur_column + h5tools_ncols(s) +
strlen(OPT(info->elmt_suf2, " ")) +
strlen(OPT(info->line_suf, ""))) > ncols) {
if (ctx->prev_multiline) {
/*
* ... and the previous element also occupied more than one
* line, then start this element at the beginning of a line.
*/
ctx->need_prefix = TRUE;
} else if ((ctx->prev_prefix_len + h5tools_ncols(s) +
strlen(OPT(info->elmt_suf2, " ")) +
strlen(OPT(info->line_suf, ""))) <= ncols) {
/*
* ...but *could* fit on one line otherwise, then we
* should end the current line and start this element on its
* own line.
*/
ctx->need_prefix = TRUE;
}
}
/*
* We need to break after each row of a dimension---> we should
* break at the end of the each last dimension well that is the
* way the dumper did it before
*/
if (info->arr_linebreak && ctx->cur_elmt) {
if (ctx->size_last_dim && (ctx->cur_elmt % ctx->size_last_dim) == 0)
ctx->need_prefix = TRUE;
if (elmt_counter == ctx->size_last_dim) {
ctx->need_prefix = TRUE;
elmt_counter = 0;
}
}
/*
* If the previous element occupied multiple lines and this element
* is too long to fit on a line then start this element at the
* beginning of the line.
*/
if (info->line_multi_new == 1 && ctx->prev_multiline &&
(ctx->cur_column + h5tools_ncols(s) +
strlen(OPT(info->elmt_suf2, " ")) +
strlen(OPT(info->line_suf, ""))) > ncols)
ctx->need_prefix = TRUE;
/*
* If too many elements have already been printed then we need to
* start a new line.
*/
if (info->line_per_line > 0 && ctx->cur_elmt >= info->line_per_line)
ctx->need_prefix = TRUE;
/*
* Each OPTIONAL_LINE_BREAK embedded in the rendered string can cause
* the data to split across multiple lines. We display the sections
* one-at a time.
*/
for (secnum = 0, multiline = 0;
(section = strtok(secnum ? NULL : s, OPTIONAL_LINE_BREAK));
secnum++) {
/*
* If the current section plus possible suffix and end-of-line
* information would cause the output to wrap then we need to
* start a new line.
*/
/*
* Added the info->skip_first because the dumper does not want
* this check to happen for the first line
*/
if ((!info->skip_first || i) &&
(ctx->cur_column + strlen(section) +
strlen(OPT(info->elmt_suf2, " ")) +
strlen(OPT(info->line_suf, ""))) > ncols)
ctx->need_prefix = 1;
/*
* Print the prefix or separate the beginning of this element
* from the previous element.
*/
if (ctx->need_prefix) {
if (secnum)
multiline++;
h5tools_simple_prefix(stream, info, ctx, i, secnum);
} else if ((i || ctx->continuation) && secnum == 0) {
fputs(OPT(info->elmt_suf2, " "), stream);
ctx->cur_column += strlen(OPT(info->elmt_suf2, " "));
}
/* Print the section */
fputs(section, stream);
ctx->cur_column += strlen(section);
}
ctx->prev_multiline = multiline;
}
h5tools_str_close(&buffer);
}
/*-------------------------------------------------------------------------
* Audience: Public
* Chapter: H5Tools Library
* Purpose: Dump out a subset of a dataset.
* Description:
* Select a hyperslab from the dataset DSET using the parameters
* specified in SSET. Dump this out to STREAM.
* Return:
* On success, return SUCCEED. Otherwise, the function returns FAIL.
* Programmer:
* Bill Wendling, Wednesday, 07. March 2001
* Modifications:
*-------------------------------------------------------------------------
*/
static herr_t
h5tools_dump_simple_subset(FILE *stream, const h5dump_t *info, hid_t dset,
hid_t p_type, struct subset_t *sset,
int indentlevel)
{
herr_t ret; /*the value to return */
hid_t f_space; /*file data space */
hsize_t elmtno, i; /*counters */
hssize_t zero = 0; /*vector of zeros */
unsigned int flags; /*buffer extent flags */
hsize_t total_size[H5S_MAX_RANK];/*total size of dataset*/
/* Print info */
h5tools_context_t ctx; /*print context */
size_t p_type_nbytes; /*size of memory type */
/* Stripmine info */
hsize_t sm_size[H5S_MAX_RANK]; /*stripmine size */
hsize_t sm_nbytes; /*bytes per stripmine */
hsize_t sm_nelmts; /*elements per stripmine*/
unsigned char *sm_buf = NULL; /*buffer for raw data */
hid_t sm_space; /*stripmine data space */
hsize_t count;
ret = FAIL; /* be pessimistic */
f_space = H5Dget_space(dset);
if (f_space == FAIL)
goto done;
/*
* check that everything looks okay. the dimensionality must not be too
* great and the dimensionality of the items selected for printing must
* match the dimensionality of the dataset.
*/
memset(&ctx, 0, sizeof(ctx));
ctx.indent_level = indentlevel;
ctx.need_prefix = 1;
ctx.ndims = H5Sget_simple_extent_ndims(f_space);
if ((size_t)ctx.ndims > NELMTS(sm_size))
goto done_close;
/* assume entire data space to be printed */
if (ctx.ndims > 0)
for (i = 0; i < (hsize_t)ctx.ndims; i++)
ctx.p_min_idx[i] = 0;
H5Sget_simple_extent_dims(f_space, total_size, NULL);
ctx.size_last_dim = total_size[ctx.ndims - 1];
count = sset->count[ctx.ndims - 1];
sset->count[ctx.ndims - 1] = 1;
for (; count > 0; sset->start[ctx.ndims - 1] += sset->stride[ctx.ndims - 1],
count--) {
/* calculate the potential number of elements we're going to print */
H5Sselect_hyperslab(f_space, H5S_SELECT_SET, sset->start, sset->stride,
sset->count, sset->block);
sm_nelmts = H5Sget_select_npoints(f_space);
/*
* start (0, 0)
* block (2, 2)
* stride (15, 5)
* count (4, 3)
*
* make:
*
* for up to "count" times.
*
* start (0, += stride[last_dim])
* block (2, 2)
* stride (15, 5)
* count (4, 1)
*/
if (sm_nelmts == 0) {
/* nothing to print */
ret = SUCCEED;
goto done_close;
}
/*
* determine the strip mine size and allocate a buffer. the strip mine is
* a hyperslab whose size is manageable.
*/
sm_nbytes = p_type_nbytes = H5Tget_size(p_type);
if (ctx.ndims > 0)
for (i = ctx.ndims; i > 0; --i) {
sm_size[i - 1] = MIN(total_size[i - 1], H5TOOLS_BUFSIZE / sm_nbytes);
sm_nbytes *= sm_size[i - 1];
assert(sm_nbytes > 0);
}
assert(sm_nbytes == (hsize_t)((size_t)sm_nbytes)); /*check for overflow*/
sm_buf = malloc((size_t)sm_nelmts * p_type_nbytes);
sm_space = H5Screate_simple(1, &sm_nelmts, NULL);
H5Sselect_hyperslab(sm_space, H5S_SELECT_SET, &zero, NULL, &sm_nelmts, NULL);
/* Read the data */
if (H5Dread(dset, p_type, sm_space, f_space, H5P_DEFAULT, sm_buf) < 0) {
H5Sclose(f_space);
H5Sclose(sm_space);
free(sm_buf);
return FAIL;
}
/* Print the data */
flags = START_OF_DATA;
if (count == 1)
flags |= END_OF_DATA;
for (i = 0; i < (hsize_t)ctx.ndims; i++) {
ctx.p_max_idx[i] = ctx.p_min_idx[i] + MIN(total_size[i], sm_size[i]);
}
h5tools_dump_simple_data(stream, info, dset, &ctx, flags, sm_nelmts,
p_type, sm_buf);
free(sm_buf);
ctx.continuation++;
}
/* Terminate the output */
if (ctx.cur_column) {
fputs(OPT(info->line_suf, ""), stream);
putc('\n', stream);
fputs(OPT(info->line_sep, ""), stream);
}
ret = SUCCEED;
done_close:
H5Sclose(f_space);
done:
return ret;
}
/*-------------------------------------------------------------------------
* Audience: Public
* Chapter: H5Tools Library
* Purpose: Print some values from a dataset with a simple data space.
* Description:
* This is a special case of h5tools_dump_dset(). This function only
* intended for dumping datasets -- it does strip mining and some other
* things which are unnecessary for smaller objects such as attributes
* (to print small objects like attributes simply read the attribute and
* call h5tools_dump_simple_mem()).
* Return:
* On success, the function returns SUCCEED. Otherwise, the function
* returns FAIL.
* Programmer:
* Robb Matzke, Thursday, July 23, 1998
* Modifications:
*-------------------------------------------------------------------------
*/
static int
h5tools_dump_simple_dset(FILE *stream, const h5dump_t *info, hid_t dset,
hid_t p_type, int indentlevel)
{
hid_t f_space; /*file data space */
hsize_t elmtno, i; /*counters */
int carry; /*counter carry value */
hssize_t zero[8]; /*vector of zeros */
unsigned int flags; /*buffer extent flags */
hsize_t total_size[H5S_MAX_RANK];/*total size of dataset*/
/* Print info */
h5tools_context_t ctx; /*print context */
size_t p_type_nbytes; /*size of memory type */
hsize_t p_nelmts; /*total selected elmts */
/* Stripmine info */
hsize_t sm_size[H5S_MAX_RANK]; /*stripmine size */
hsize_t sm_nbytes; /*bytes per stripmine */
hsize_t sm_nelmts; /*elements per stripmine*/
unsigned char *sm_buf = NULL; /*buffer for raw data */
hid_t sm_space; /*stripmine data space */
/* Hyperslab info */
hssize_t hs_offset[H5S_MAX_RANK];/*starting offset */
hsize_t hs_size[H5S_MAX_RANK]; /*size this pass */
hsize_t hs_nelmts; /*elements in request */
/* VL data special information */
unsigned int vl_data = 0; /*contains VL datatypes */
f_space = H5Dget_space(dset);
if (f_space == FAIL)
return FAIL;
/*
* Check that everything looks okay. The dimensionality must not be too
* great and the dimensionality of the items selected for printing must
* match the dimensionality of the dataset.
*/
memset(&ctx, 0, sizeof(ctx));
ctx.indent_level = indentlevel;
ctx.need_prefix = 1;
ctx.ndims = H5Sget_simple_extent_ndims(f_space);
if ((size_t)ctx.ndims > NELMTS(sm_size)) {
H5Sclose(f_space);
return FAIL;
}
/* Assume entire data space to be printed */
if (ctx.ndims > 0)
for (i = 0; i < (hsize_t)ctx.ndims; i++)
ctx.p_min_idx[i] = 0;
H5Sget_simple_extent_dims(f_space, total_size, NULL);
ctx.size_last_dim = total_size[ctx.ndims - 1];
/* calculate the number of elements we're going to print */
p_nelmts = 1;
if (ctx.ndims > 0)
for (i = 0, p_nelmts = 1; i < (hsize_t)ctx.ndims; i++)
p_nelmts *= total_size[i];
if (p_nelmts == 0) {
/* nothing to print */
H5Sclose(f_space);
return SUCCEED;
}
/* Check if we have VL data in the dataset's datatype */
if (H5Tdetect_class(p_type, H5T_VLEN) == TRUE)
vl_data = TRUE;
/*
* Determine the strip mine size and allocate a buffer. The strip mine is
* a hyperslab whose size is manageable.
*/
sm_nbytes = p_type_nbytes = H5Tget_size(p_type);
if (ctx.ndims > 0) {
for (i = ctx.ndims; i > 0; --i) {
sm_size[i - 1] = MIN(total_size[i - 1], H5TOOLS_BUFSIZE / sm_nbytes);
sm_nbytes *= sm_size[i - 1];
assert(sm_nbytes > 0);
}
}
assert(sm_nbytes == (hsize_t)((size_t)sm_nbytes)); /*check for overflow*/
sm_buf = malloc((size_t)sm_nbytes);
sm_nelmts = sm_nbytes / p_type_nbytes;
sm_space = H5Screate_simple(1, &sm_nelmts, NULL);
/* The stripmine loop */
memset(hs_offset, 0, sizeof hs_offset);
memset(zero, 0, sizeof zero);
for (elmtno = 0; elmtno < p_nelmts; elmtno += hs_nelmts) {
/* Calculate the hyperslab size */
if (ctx.ndims > 0) {
for (i = 0, hs_nelmts = 1; i < (hsize_t)ctx.ndims; i++) {
hs_size[i] = MIN(total_size[i] - hs_offset[i], sm_size[i]);
ctx.p_max_idx[i] = ctx.p_min_idx[i] + hs_size[i];
hs_nelmts *= hs_size[i];
}
H5Sselect_hyperslab(f_space, H5S_SELECT_SET, hs_offset, NULL,
hs_size, NULL);
H5Sselect_hyperslab(sm_space, H5S_SELECT_SET, zero, NULL,
&hs_nelmts, NULL);
} else {
H5Sselect_all(f_space);
H5Sselect_all(sm_space);
hs_nelmts = 1;
}
/* Read the data */
if (H5Dread(dset, p_type, sm_space, f_space, H5P_DEFAULT, sm_buf) < 0) {
H5Sclose(f_space);
H5Sclose(sm_space);
free(sm_buf);
return FAIL;
}
/* Print the data */
flags = (elmtno == 0) ? START_OF_DATA : 0;
flags |= ((elmtno + hs_nelmts) >= p_nelmts) ? END_OF_DATA : 0;
h5tools_dump_simple_data(stream, info, dset, &ctx, flags, hs_nelmts,
p_type, sm_buf);
/* Reclaim any VL memory, if necessary */
if (vl_data)
H5Dvlen_reclaim(p_type, sm_space, H5P_DEFAULT, sm_buf);
/* Calculate the next hyperslab offset */
for (i = ctx.ndims, carry = 1; i > 0 && carry; --i) {
ctx.p_min_idx[i - 1] = ctx.p_max_idx[i - 1];
hs_offset[i - 1] += hs_size[i - 1];
if (hs_offset[i - 1] == (hssize_t)total_size[i - 1])
hs_offset[i - 1] = 0;
else
carry = 0;
}
ctx.continuation++;
}
/* Terminate the output */
if (ctx.cur_column) {
fputs(OPT(info->line_suf, ""), stream);
putc('\n', stream);
fputs(OPT(info->line_sep, ""), stream);
}
H5Sclose(sm_space);
H5Sclose(f_space);
free(sm_buf);
return SUCCEED;
}
/*-------------------------------------------------------------------------
* Function: h5tools_dump_simple_mem
*
* Purpose: Print some values from memory with a simple data space.
* This is a special case of h5tools_dump_mem().
*
* Return: Success: SUCCEED
*
* Failure: FAIL
*
* Programmer: Robb Matzke
* Thursday, July 23, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static int
h5tools_dump_simple_mem(FILE *stream, const h5dump_t *info, hid_t obj_id,
hid_t type, hid_t space, void *mem, int indentlevel)
{
hsize_t i; /*counters */
hsize_t nelmts; /*total selected elmts */
h5tools_context_t ctx; /*printing context */
/*
* Check that everything looks okay. The dimensionality must not be too
* great and the dimensionality of the items selected for printing must
* match the dimensionality of the dataset.
*/
memset(&ctx, 0, sizeof(ctx));
ctx.ndims = H5Sget_simple_extent_ndims(space);
if ((size_t)ctx.ndims > NELMTS(ctx.p_min_idx))
return FAIL;
ctx.indent_level = indentlevel;
ctx.need_prefix = 1;
/* Assume entire data space to be printed */
for (i = 0; i < (hsize_t)ctx.ndims; i++)
ctx.p_min_idx[i] = 0;
H5Sget_simple_extent_dims(space, ctx.p_max_idx, NULL);
for (i = 0, nelmts = 1; ctx.ndims != 0 && i < (hsize_t)ctx.ndims; i++)
nelmts *= ctx.p_max_idx[i] - ctx.p_min_idx[i];
if (nelmts == 0)
return SUCCEED; /*nothing to print*/
ctx.size_last_dim = ctx.p_max_idx[ctx.ndims - 1];
/* Print it */
h5tools_dump_simple_data(stream, info, obj_id, &ctx,
START_OF_DATA | END_OF_DATA, nelmts, type, mem);
/* Terminate the output */
if (ctx.cur_column) {
fputs(OPT(info->line_suf, ""), stream);
putc('\n', stream);
fputs(OPT(info->line_sep, ""), stream);
}
return SUCCEED;
}
/*-------------------------------------------------------------------------
* Function: h5tools_fixtype
*
* Purpose: Given a file data type choose a memory data type which is
* appropriate for printing the data.
*
* Return: Success: Memory data type
*
* Failure: FAIL
*
* Programmer: Robb Matzke
* Thursday, July 23, 1998
*
* Modifications:
* Robb Matzke, 1999-06-04
* Added support for references.
*
*-------------------------------------------------------------------------
*/
hid_t
h5tools_fixtype(hid_t f_type)
{
hid_t m_type = FAIL, f_memb;
hid_t *memb = NULL;
char **name = NULL;
int nmembs = 0, i;
int ndims;
hsize_t dim[H5S_MAX_RANK];
size_t size, offset;
hid_t array_base;
/* H5T_str_t strpad; */
size = H5Tget_size(f_type);
switch (H5Tget_class(f_type)) {
case H5T_INTEGER:
/*
* Use the smallest native integer type of the same sign as the file
* such that the memory type is at least as large as the file type.
* If there is no memory type large enough then use the largest
* memory type available.
*/
if (size <= sizeof(char)) {
m_type = H5Tcopy(H5T_NATIVE_SCHAR);
} else if (size <= sizeof(short)) {
m_type = H5Tcopy(H5T_NATIVE_SHORT);
} else if (size <= sizeof(int)) {
m_type = H5Tcopy(H5T_NATIVE_INT);
} else if (size <= sizeof(long)) {
m_type = H5Tcopy(H5T_NATIVE_LONG);
} else {
m_type = H5Tcopy(H5T_NATIVE_LLONG);
}
H5Tset_sign(m_type, H5Tget_sign(f_type));
break;
case H5T_FLOAT:
/*
* Use the smallest native floating point type available such that
* its size is at least as large as the file type. If there is not
* native type large enough then use the largest native type.
*/
if (size <= sizeof(float)) {
m_type = H5Tcopy(H5T_NATIVE_FLOAT);
} else if (size <= sizeof(double)) {
m_type = H5Tcopy(H5T_NATIVE_DOUBLE);
} else {
m_type = H5Tcopy(H5T_NATIVE_LDOUBLE);
}
break;
case H5T_STRING:
/*
* This is needed because the function in dumputil.c is the case where
* strDUAction == TRUE. if it is false we will do the original action
* here.
*/
m_type = H5Tcopy(f_type);
H5Tset_cset(m_type, H5T_CSET_ASCII);
break;
case H5T_COMPOUND:
/*
* We have to do this in two steps. The first step scans the file
* type and converts the members to native types and remembers all
* their names and sizes, computing the size of the memory compound
* type at the same time. Then we create the memory compound type
* and add the members.
*/
nmembs = H5Tget_nmembers(f_type);
assert(nmembs > 0);
memb = calloc((size_t)nmembs, sizeof(hid_t));
name = calloc((size_t)nmembs, sizeof(char *));
for (i = 0, size = 0; i < nmembs; i++) {
/* Get the member type and fix it */
f_memb = H5Tget_member_type(f_type, i);
memb[i] = h5tools_fixtype(f_memb);
H5Tclose(f_memb);
if (memb[i] < 0)
goto done;
/* Get the member name */
name[i] = H5Tget_member_name(f_type, i);
if (name[i] == NULL)
goto done;
/*
* Compute the new offset so each member is aligned on a byte
* boundary which is the same as the member size.
*/
size = ALIGN(size, H5Tget_size(memb[i])) + H5Tget_size(memb[i]);
}
m_type = H5Tcreate(H5T_COMPOUND, size);
for (i = 0, offset = 0; i < nmembs; i++) {
if (offset)
offset = ALIGN(offset, H5Tget_size(memb[i]));
H5Tinsert(m_type, name[i], offset, memb[i]);
offset += H5Tget_size(memb[i]);
}
break;
case H5T_ARRAY:
/* Get the array information */
ndims = H5Tget_array_ndims(f_type);
H5Tget_array_dims(f_type, dim, NULL);
/* Get the array's base type and convert it to the printable version */
f_memb = H5Tget_super(f_type);
array_base = h5tools_fixtype(f_memb);
/* Copy the array */
m_type = H5Tarray_create(array_base, ndims, dim, NULL);
/* Close the temporary datatypes */
H5Tclose(array_base);
H5Tclose(f_memb);
break;
case H5T_VLEN:
/* Get the VL sequence's base type and convert it to the printable version */
f_memb = H5Tget_super(f_type);
array_base = h5tools_fixtype(f_memb);
/* Copy the VL type */
m_type = H5Tvlen_create(array_base);
/* Close the temporary datatypes */
H5Tclose(array_base);
H5Tclose(f_memb);
break;
case H5T_ENUM:
case H5T_REFERENCE:
case H5T_OPAQUE:
/* Same as file type */
m_type = H5Tcopy(f_type);
break;
case H5T_BITFIELD:
/*
* Same as the file except the offset is set to zero and the byte
* order is set to little endian.
*/
m_type = H5Tcopy(f_type);
H5Tset_offset(m_type, 0);
H5Tset_order(m_type, H5T_ORDER_LE);
break;
case H5T_TIME:
/*
* These type classes are not implemented yet.
*/
break;
default:
/* What the heck? */
break;
}
done:
/* Clean up temp buffers */
if (memb && name) {
register int j;
for (j = 0; j < nmembs; j++) {
if (memb[j] >= 0)
H5Tclose(memb[j]);
if (name[j])
free(name[j]);
}
free(memb);
free(name);
}
return m_type;
}
/*-------------------------------------------------------------------------
* Function: h5tools_dump_dset
*
* Purpose: Print some values from a dataset DSET to the file STREAM
* after converting all types to P_TYPE (which should be a
* native type). If P_TYPE is a negative value then it will be
* computed from the dataset type using only native types.
*
* Note: This function is intended only for datasets since it does
* some things like strip mining which are unnecessary for
* smaller objects such as attributes. The easiest way to print
* small objects is to read the object into memory and call
* h5tools_dump_mem().
*
* Return: Success: SUCCEED
*
* Failure: FAIL
*
* Programmer: Robb Matzke
* Thursday, July 23, 1998
*
* Modifications:
* Robb Matzke, 1999-06-07
* If info->raw is set then the memory datatype will be the same
* as the file datatype.
*
* Bill Wendling, 2001-02-27
* Renamed to ``h5tools_dump_dset'' and added the subsetting
* parameter.
*
*-------------------------------------------------------------------------
*/
int
h5tools_dump_dset(FILE *stream, const h5dump_t *info, hid_t dset, hid_t _p_type,
struct subset_t *sset, int indentlevel)
{
hid_t f_space;
hid_t p_type = _p_type;
hid_t f_type;
int status = FAIL;
h5dump_t info_dflt;
/* Use default values */
if (!stream)
stream = stdout;
if (!info) {
memset(&info_dflt, 0, sizeof info_dflt);
info = &info_dflt;
}
if (p_type < 0) {
f_type = H5Dget_type(dset);
if (info->raw)
p_type = H5Tcopy(f_type);
else
p_type = h5tools_fixtype(f_type);
H5Tclose(f_type);
if (p_type < 0)
goto done;
}
/* Check the data space */
f_space = H5Dget_space(dset);
/* Print the data */
if (H5Sis_simple(f_space) > 0) {
if (!sset)
status = h5tools_dump_simple_dset(rawdatastream, info, dset, p_type,
indentlevel);
else
status = h5tools_dump_simple_subset(rawdatastream, info, dset, p_type,
sset, indentlevel);
}
/* Close the dataspace */
H5Sclose(f_space);
done:
if (p_type != _p_type)
H5Tclose(p_type);
return status;
}
/*-------------------------------------------------------------------------
* Function: h5tools_dump_mem
*
* Purpose: Displays the data contained in MEM. MEM must have the
* specified data TYPE and SPACE. Currently only simple data
* spaces are allowed and only the `all' selection.
*
* Return: Success: SUCCEED
*
* Failure: FAIL
*
* Programmer: Robb Matzke
* Wednesday, January 20, 1999
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
int
h5tools_dump_mem(FILE *stream, const h5dump_t *info, hid_t obj_id, hid_t type,
hid_t space, void *mem, int indentlevel)
{
h5dump_t info_dflt;
/* Use default values */
if (!stream)
stream = stdout;
if (!info) {
memset(&info_dflt, 0, sizeof(info_dflt));
info = &info_dflt;
}
/* Check the data space */
if (H5Sis_simple(space) <= 0)
return -1;
return h5tools_dump_simple_mem(stream, info, obj_id, type, space, mem,
indentlevel);
}
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