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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
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<!-- 2021-05-03 Mon 13:59 -->
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<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>TEXT back end</title>
<meta name="generator" content="Org mode" />
<meta name="author" content="TREX-CoE" />
<style type="text/css">
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.org-svg { width: 90%; }
/*]]>*/-->
</style>
<link rel="stylesheet" title="Standard" href="trexio.css" type="text/css" />
<script type="text/javascript" src="org-info.js">
/**
*
* @source: org-info.js
*
* @licstart The following is the entire license notice for the
* JavaScript code in org-info.js.
*
* Copyright (C) 2012-2019 Free Software Foundation, Inc.
*
*
* The JavaScript code in this tag is free software: you can
* redistribute it and/or modify it under the terms of the GNU
* General Public License (GNU GPL) as published by the Free Software
* Foundation, either version 3 of the License, or (at your option)
* any later version. The code is distributed WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU GPL for more details.
*
* As additional permission under GNU GPL version 3 section 7, you
* may distribute non-source (e.g., minimized or compacted) forms of
* that code without the copy of the GNU GPL normally required by
* section 4, provided you include this license notice and a URL
* through which recipients can access the Corresponding Source.
*
* @licend The above is the entire license notice
* for the JavaScript code in org-info.js.
*
*/
</script>
<script type="text/javascript">
/*
@licstart The following is the entire license notice for the
JavaScript code in this tag.
Copyright (C) 2012-2019 Free Software Foundation, Inc.
The JavaScript code in this tag is free software: you can
redistribute it and/or modify it under the terms of the GNU
General Public License (GNU GPL) as published by the Free Software
Foundation, either version 3 of the License, or (at your option)
any later version. The code is distributed WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU GPL for more details.
As additional permission under GNU GPL version 3 section 7, you
may distribute non-source (e.g., minimized or compacted) forms of
that code without the copy of the GNU GPL normally required by
section 4, provided you include this license notice and a URL
through which recipients can access the Corresponding Source.
@licend The above is the entire license notice
for the JavaScript code in this tag.
*/
<!--/*--><![CDATA[/*><!--*/
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org_html_manager.set("FIXED_TOC", "0");
org_html_manager.set("TOC", "1");
org_html_manager.set("VIEW", "info");
org_html_manager.setup(); // activate after the parameters are set
/*]]>*///-->
</script>
<script type="text/javascript">
/*
@licstart The following is the entire license notice for the
JavaScript code in this tag.
Copyright (C) 2012-2019 Free Software Foundation, Inc.
The JavaScript code in this tag is free software: you can
redistribute it and/or modify it under the terms of the GNU
General Public License (GNU GPL) as published by the Free Software
Foundation, either version 3 of the License, or (at your option)
any later version. The code is distributed WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU GPL for more details.
As additional permission under GNU GPL version 3 section 7, you
may distribute non-source (e.g., minimized or compacted) forms of
that code without the copy of the GNU GPL normally required by
section 4, provided you include this license notice and a URL
through which recipients can access the Corresponding Source.
@licend The above is the entire license notice
for the JavaScript code in this tag.
*/
<!--/*--><![CDATA[/*><!--*/
function CodeHighlightOn(elem, id)
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/*]]>*///-->
</script>
</head>
<body>
<div id="org-div-home-and-up">
<a accesskey="h" href=""> UP </a>
|
<a accesskey="H" href="index.html"> HOME </a>
</div><div id="content">
<h1 class="title">TEXT back end</h1>
<div id="table-of-contents">
<h2>Table of Contents</h2>
<div id="text-table-of-contents">
<ul>
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<li><a href="#org00c4540">1. TEXT back end</a>
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<ul>
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<li><a href="#orge4874aa">1.1. Template for group-related structures in text back end</a></li>
<li><a href="#org7345874">1.2. Template for general structure in text back end</a></li>
<li><a href="#org4714e9d">1.3. Initialize function (constant part)</a></li>
<li><a href="#org1746d54">1.4. Deinitialize function (templated part)</a></li>
<li><a href="#org41a784b">1.5. Template for text read struct</a></li>
<li><a href="#orgdf7c991">1.6. Template for text flush struct</a></li>
<li><a href="#org5910239">1.7. Template for text free memory</a></li>
<li><a href="#org92bacd4">1.8. Template for has/read/write the <code>$group_num$</code> attribute</a></li>
<li><a href="#org9f73219">1.9. Template for has/read/write the <code>$group_dset$</code> dataset</a></li>
<li><a href="#org0289f90">1.10. RDM struct (hard-coded)</a>
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<ul>
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<li><a href="#orgffaf7f6">1.10.1. Read the complete struct</a></li>
<li><a href="#org6f476d8">1.10.2. Flush the complete struct</a></li>
<li><a href="#org39bf352">1.10.3. Free memory</a></li>
<li><a href="#org09e11e1">1.10.4. Read/Write the one<sub>e</sub> attribute</a></li>
<li><a href="#org5cd1d66">1.10.5. Read/Write the two<sub>e</sub> attribute</a></li>
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</ul>
</li>
</ul>
</li>
</ul>
</div>
</div>
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<div id="outline-container-org00c4540" class="outline-2">
<h2 id="org00c4540"><span class="section-number-2">1</span> TEXT back end</h2>
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<div class="outline-text-2" id="text-1">
<p>
The "file" produced by the text back end is a directory with one
file per group.
</p>
<p>
When the file is open, it is locked by the current process. No other
process can read/write the same file. This guarantees that the
representation in memory is consistent with the file and avoid
re-reading the file before writing.
To lock the file, we lock the <code>.lock</code> file which is present in the
directory.
</p>
<p>
The file is written when closed, or when the flush function is called.
</p>
</div>
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<div id="outline-container-orge4874aa" class="outline-3">
<h3 id="orge4874aa"><span class="section-number-3">1.1</span> Template for group-related structures in text back end</h3>
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<div class="outline-text-3" id="text-1-1">
<div class="org-src-container">
<pre class="src src-c"><span style="color: #a020f0;">typedef</span> <span style="color: #a020f0;">struct</span> $group$_s {
uint64_t $group_num$;
<span style="color: #228b22;">FILE</span>* <span style="color: #a0522d;">file</span>;
$group_dset_dtype$* $group_dset$;
<span style="color: #228b22;">uint32_t</span> <span style="color: #a0522d;">rank_$group_dset$</span>;
<span style="color: #228b22;">uint32_t</span> <span style="color: #a0522d;">to_flush</span>;
<span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">dims_$group_dset$</span>[16];
} $group$_t;
</pre>
</div>
</div>
</div>
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<div id="outline-container-org7345874" class="outline-3">
<h3 id="org7345874"><span class="section-number-3">1.2</span> Template for general structure in text back end</h3>
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<div class="outline-text-3" id="text-1-2">
<div class="org-src-container">
<pre class="src src-c"><span style="color: #a020f0;">typedef</span> <span style="color: #a020f0;">struct</span> <span style="color: #228b22;">rdm_s</span> {
<span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">dim_one_e</span>;
<span style="color: #228b22;">uint32_t</span> <span style="color: #a0522d;">to_flush</span>;
<span style="color: #228b22;">uint32_t</span> <span style="color: #a0522d;">padding</span>;
<span style="color: #228b22;">double</span>* <span style="color: #a0522d;">one_e</span>;
<span style="color: #228b22;">FILE</span>* <span style="color: #a0522d;">file</span>;
<span style="color: #228b22;">char</span>* <span style="color: #a0522d;">two_e_file_name</span>;
} <span style="color: #228b22;">rdm_t</span>;
</pre>
</div>
<div class="org-src-container">
<pre class="src src-c"><span style="color: #a020f0;">typedef</span> <span style="color: #a020f0;">struct</span> <span style="color: #228b22;">trexio_text_s</span> {
<span style="color: #228b22;">trexio_t</span> <span style="color: #a0522d;">parent</span> ;
$group$_t* $group$;
<span style="color: #228b22;">rdm_t</span>* <span style="color: #a0522d;">rdm</span>;
<span style="color: #228b22;">int</span> <span style="color: #a0522d;">lock_file</span>;
} <span style="color: #228b22;">trexio_text_t</span>;
</pre>
</div>
</div>
</div>
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<div id="outline-container-org4714e9d" class="outline-3">
<h3 id="org4714e9d"><span class="section-number-3">1.3</span> Initialize function (constant part)</h3>
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<div class="outline-text-3" id="text-1-3">
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">trexio_exit_code</span>
<span style="color: #0000ff;">trexio_text_init</span> (<span style="color: #228b22;">trexio_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>)
{
<span style="color: #a020f0;">if</span> (file == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_1;
<span style="color: #228b22;">trexio_text_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">f</span> = (<span style="color: #228b22;">trexio_text_t</span>*) file;
/* <span style="color: #b22222;">Put all pointers to NULL but leave parent untouched </span>*/
memset(&amp;(f-&gt;parent)+1,0,<span style="color: #a020f0;">sizeof</span>(trexio_text_t)-<span style="color: #a020f0;">sizeof</span>(trexio_t));
/* <span style="color: #b22222;">If directory doesn't exist, create it in write mode </span>*/
<span style="color: #a020f0;">struct</span> <span style="color: #228b22;">stat</span> <span style="color: #a0522d;">st</span>;
<span style="color: #a020f0;">if</span> (stat(file-&gt;file_name, &amp;st) == 0 &amp;&amp; S_ISDIR(st.st_mode)) {
/* <span style="color: #b22222;">Do nothing </span>*/
} <span style="color: #a020f0;">else</span> {
<span style="color: #a020f0;">if</span> (file-&gt;mode == <span style="color: #8b2252;">'r'</span>) <span style="color: #a020f0;">return</span> TREXIO_READONLY;
<span style="color: #a020f0;">if</span> (mkdir(file-&gt;file_name, 0777) != 0) {
<span style="color: #a020f0;">return</span> TREXIO_FAILURE;
}
}
/* <span style="color: #b22222;">Create the lock file in the directory </span>*/
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">char</span>* <span style="color: #a0522d;">lock_file_name</span> = <span style="color: #8b2252;">"/.lock"</span>;
<span style="color: #228b22;">size_t</span> <span style="color: #a0522d;">str_size</span> = strlen(file-&gt;file_name) + strlen(lock_file_name) + 1;
<span style="color: #228b22;">char</span>* <span style="color: #a0522d;">file_name</span> = CALLOC(str_size, <span style="color: #228b22;">char</span>);
<span style="color: #a020f0;">if</span> (file_name == <span style="color: #008b8b;">NULL</span>) {
<span style="color: #a020f0;">return</span> TREXIO_ALLOCATION_FAILED;
}
strncpy (file_name, file-&gt;file_name, str_size);
strncat (file_name, lock_file_name, strlen(lock_file_name));
f-&gt;lock_file = open(file_name,O_WRONLY|O_CREAT|O_TRUNC, 0644);
FREE(file_name);
<span style="color: #a020f0;">if</span> (f-&gt;lock_file &lt;= 0) {
<span style="color: #a020f0;">return</span> TREXIO_FAILURE;
}
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
}
</pre>
</div>
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">trexio_exit_code</span> <span style="color: #0000ff;">trexio_text_lock</span>(<span style="color: #228b22;">trexio_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>) {
<span style="color: #a020f0;">if</span> (file == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_1;
<span style="color: #228b22;">trexio_text_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">f</span> = (<span style="color: #228b22;">trexio_text_t</span>*) file;
<span style="color: #a020f0;">struct</span> <span style="color: #228b22;">flock</span> <span style="color: #a0522d;">fl</span>;
fl.l_type = F_WRLCK;
fl.l_whence = SEEK_SET;
fl.l_start = 0;
fl.l_len = 0;
fl.l_pid = getpid();
<span style="color: #228b22;">int</span> <span style="color: #a0522d;">rc</span> = fcntl(f-&gt;lock_file, F_SETLKW, &amp;fl);
<span style="color: #a020f0;">if</span> (rc == -1) <span style="color: #a020f0;">return</span> TREXIO_FAILURE;
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
}
</pre>
</div>
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">trexio_exit_code</span>
<span style="color: #0000ff;">trexio_text_unlock</span> (<span style="color: #228b22;">trexio_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>)
{
<span style="color: #a020f0;">if</span> (file == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_1;
<span style="color: #228b22;">trexio_text_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">f</span> = (<span style="color: #228b22;">trexio_text_t</span>*) file;
<span style="color: #a020f0;">struct</span> <span style="color: #228b22;">flock</span> <span style="color: #a0522d;">fl</span>;
fl.l_type = F_UNLCK;
fl.l_whence = SEEK_SET;
fl.l_start = 0;
fl.l_len = 0;
fl.l_pid = getpid();
fcntl(f-&gt;lock_file, F_SETLK, &amp;fl);
close(f-&gt;lock_file);
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
}
</pre>
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<div id="outline-container-org1746d54" class="outline-3">
<h3 id="org1746d54"><span class="section-number-3">1.4</span> Deinitialize function (templated part)</h3>
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<div class="outline-text-3" id="text-1-4">
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">trexio_exit_code</span>
<span style="color: #0000ff;">trexio_text_deinit</span> (<span style="color: #228b22;">trexio_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>)
{
<span style="color: #a020f0;">if</span> (file == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_1;
<span style="color: #228b22;">trexio_exit_code</span> <span style="color: #a0522d;">rc</span>;
assert (trexio_text_free_$group$( (<span style="color: #228b22;">trexio_text_t</span>*) file) == TREXIO_SUCCESS);
rc = trexio_text_free_rdm( (<span style="color: #228b22;">trexio_text_t</span>*) file);
assert (rc == TREXIO_SUCCESS);
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
}
</pre>
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<div id="outline-container-org41a784b" class="outline-3">
<h3 id="org41a784b"><span class="section-number-3">1.5</span> Template for text read struct</h3>
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<div class="outline-text-3" id="text-1-5">
<div class="org-src-container">
<pre class="src src-c">$group$_t*
trexio_text_read_$group$ (<span style="color: #228b22;">trexio_text_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>)
{
<span style="color: #a020f0;">if</span> (file == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> <span style="color: #008b8b;">NULL</span>;
/* <span style="color: #b22222;">If the data structure exists, return it </span>*/
<span style="color: #a020f0;">if</span> (file-&gt;$group$ != <span style="color: #008b8b;">NULL</span>) {
<span style="color: #a020f0;">return</span> file-&gt;$group$;
}
/* <span style="color: #b22222;">Allocate the data structure </span>*/
$group$_t* $group$ = MALLOC($group$_t);
<span style="color: #a020f0;">if</span> ($group$ == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> <span style="color: #008b8b;">NULL</span>;
memset($group$,0,<span style="color: #a020f0;">sizeof</span>($group$_t));
/* <span style="color: #b22222;">Build the file name </span>*/
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">char</span>* $group$_file_name = <span style="color: #8b2252;">"/$group$.txt"</span>;
<span style="color: #228b22;">size_t</span> <span style="color: #a0522d;">str_size</span> = strlen(file-&gt;parent.file_name) + strlen($group$_file_name) + 1;
<span style="color: #228b22;">char</span> * <span style="color: #a0522d;">file_name</span> = CALLOC(str_size, <span style="color: #228b22;">char</span>);
<span style="color: #a020f0;">if</span> (file_name == <span style="color: #008b8b;">NULL</span>) {
FREE($group$);
<span style="color: #a020f0;">return</span> <span style="color: #008b8b;">NULL</span>;
}
strncpy (file_name, file-&gt;parent.file_name, str_size);
strncat (file_name, $group$_file_name, strlen($group$_file_name));
/* <span style="color: #b22222;">If the file exists, read it </span>*/
<span style="color: #228b22;">FILE</span>* <span style="color: #a0522d;">f</span> = fopen(file_name,<span style="color: #8b2252;">"r"</span>);
<span style="color: #a020f0;">if</span> (f != <span style="color: #008b8b;">NULL</span>) {
/* <span style="color: #b22222;">Find size of file to allocate the max size of the string buffer </span>*/
fseek(f, 0L, SEEK_END);
<span style="color: #228b22;">size_t</span> <span style="color: #a0522d;">sz</span> = ftell(f);
fseek(f, 0L, SEEK_SET);
sz = (sz &lt; 1024) ? (1024) : (sz);
<span style="color: #228b22;">char</span>* <span style="color: #a0522d;">buffer</span> = CALLOC(sz, <span style="color: #228b22;">char</span>);
<span style="color: #a020f0;">if</span> (buffer == <span style="color: #008b8b;">NULL</span>) {
FREE(file_name);
fclose(f);
FREE($group$);
<span style="color: #a020f0;">return</span> <span style="color: #008b8b;">NULL</span>;
}
/* <span style="color: #b22222;">Read the dimensioning variables </span>*/
<span style="color: #228b22;">int</span> <span style="color: #a0522d;">rc</span>;
// <span style="color: #b22222;">START REPEAT GROUP_DSET</span>
rc = fscanf(f, <span style="color: #8b2252;">"%1023s"</span>, buffer);
<span style="color: #a020f0;">if</span> ((rc != 1) || (strcmp(buffer, <span style="color: #8b2252;">"rank_$group_dset$"</span>) != 0)) {
FREE(buffer);
FREE(file_name);
fclose(f);
FREE($group$);
<span style="color: #a020f0;">return</span> <span style="color: #008b8b;">NULL</span>;
}
rc = fscanf(f, <span style="color: #8b2252;">"%u"</span>, &amp;($group$-&gt;rank_$group_dset$));
<span style="color: #a020f0;">if</span> (rc != 1) {
FREE(buffer);
FREE(file_name);
fclose(f);
FREE($group$);
<span style="color: #a020f0;">return</span> <span style="color: #008b8b;">NULL</span>;
}
/* <span style="color: #b22222;">workaround for the case of missing blocks in the file </span>*/
<span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">size_$group_dset$</span> = 0;
<span style="color: #a020f0;">if</span> ($group$-&gt;rank_$group_dset$ != 0) size_$group_dset$ = 1;
<span style="color: #a020f0;">for</span> (<span style="color: #228b22;">unsigned</span> <span style="color: #228b22;">int</span> <span style="color: #a0522d;">i</span>=0; i&lt;$group$-&gt;rank_$group_dset$; ++i){
<span style="color: #228b22;">unsigned</span> <span style="color: #228b22;">int</span> <span style="color: #a0522d;">j</span>=0;
rc = fscanf(f, <span style="color: #8b2252;">"%1023s %u"</span>, buffer, &amp;j);
<span style="color: #a020f0;">if</span> ((rc != 2) || (strcmp(buffer, <span style="color: #8b2252;">"dims_$group_dset$"</span>) != 0) || (j!=i)) {
FREE(buffer);
FREE(file_name);
fclose(f);
FREE($group$);
<span style="color: #a020f0;">return</span> <span style="color: #008b8b;">NULL</span>;
}
rc = fscanf(f, <span style="color: #8b2252;">"%lu\n"</span>, &amp;($group$-&gt;dims_$group_dset$[i]));
assert(!(rc != 1));
<span style="color: #a020f0;">if</span> (rc != 1) {
FREE(buffer);
FREE(file_name);
fclose(f);
FREE($group$);
<span style="color: #a020f0;">return</span> <span style="color: #008b8b;">NULL</span>;
}
size_$group_dset$ *= $group$-&gt;dims_$group_dset$[i];
}
// <span style="color: #b22222;">END REPEAT GROUP_DSET</span>
// <span style="color: #b22222;">START REPEAT GROUP_NUM</span>
/* <span style="color: #b22222;">Read data </span>*/
rc = fscanf(f, <span style="color: #8b2252;">"%1023s"</span>, buffer);
assert(!((rc != 1) || (strcmp(buffer, <span style="color: #8b2252;">"$group_num$"</span>) != 0)));
<span style="color: #a020f0;">if</span> ((rc != 1) || (strcmp(buffer, <span style="color: #8b2252;">"$group_num$"</span>) != 0)) {
FREE(buffer);
FREE(file_name);
fclose(f);
FREE($group$);
<span style="color: #a020f0;">return</span> <span style="color: #008b8b;">NULL</span>;
}
rc = fscanf(f, <span style="color: #8b2252;">"%lu"</span>, &amp;($group$-&gt;$group_num$));
assert(!(rc != 1));
<span style="color: #a020f0;">if</span> (rc != 1) {
FREE(buffer);
FREE(file_name);
fclose(f);
FREE($group$);
<span style="color: #a020f0;">return</span> <span style="color: #008b8b;">NULL</span>;
}
// <span style="color: #b22222;">END REPEAT GROUP_NUM</span>
// <span style="color: #b22222;">START REPEAT GROUP_DSET</span>
/* <span style="color: #b22222;">Allocate arrays </span>*/
$group$-&gt;$group_dset$ = CALLOC(size_$group_dset$, $group_dset_dtype$);
assert (!($group$-&gt;$group_dset$ == <span style="color: #008b8b;">NULL</span>));
<span style="color: #a020f0;">if</span> ($group$-&gt;$group_dset$ == <span style="color: #008b8b;">NULL</span>) {
FREE(buffer);
FREE(file_name);
fclose(f);
FREE($group$);
<span style="color: #a020f0;">return</span> <span style="color: #008b8b;">NULL</span>;
}
rc = fscanf(f, <span style="color: #8b2252;">"%1023s"</span>, buffer);
assert(!((rc != 1) || (strcmp(buffer, <span style="color: #8b2252;">"$group_dset$"</span>) != 0)));
<span style="color: #a020f0;">if</span> ((rc != 1) || (strcmp(buffer, <span style="color: #8b2252;">"$group_dset$"</span>) != 0)) {
FREE(buffer);
FREE(file_name);
fclose(f);
FREE($group$-&gt;$group_dset$);
FREE($group$);
<span style="color: #a020f0;">return</span> <span style="color: #008b8b;">NULL</span>;
}
<span style="color: #a020f0;">for</span> (<span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">i</span>=0 ; i&lt;size_$group_dset$ ; ++i) {
rc = fscanf(f, <span style="color: #8b2252;">"%$group_dset_std_dtype_in$"</span>, &amp;($group$-&gt;$group_dset$[i]));
assert(!(rc != 1));
<span style="color: #a020f0;">if</span> (rc != 1) {
FREE(buffer);
FREE(file_name);
fclose(f);
FREE($group$-&gt;$group_dset$);
FREE($group$);
<span style="color: #a020f0;">return</span> <span style="color: #008b8b;">NULL</span>;
}
}
// <span style="color: #b22222;">END REPEAT GROUP_DSET</span>
FREE(buffer);
fclose(f);
f = <span style="color: #008b8b;">NULL</span>;
}
<span style="color: #a020f0;">if</span> (file-&gt;parent.mode == <span style="color: #8b2252;">'w'</span>) {
$group$-&gt;file = fopen(file_name,<span style="color: #8b2252;">"a"</span>);
} <span style="color: #a020f0;">else</span> {
$group$-&gt;file = fopen(file_name,<span style="color: #8b2252;">"r"</span>);
}
FREE(file_name);
assert (!($group$-&gt;file == <span style="color: #008b8b;">NULL</span>));
<span style="color: #a020f0;">if</span> ($group$-&gt;file == <span style="color: #008b8b;">NULL</span>) {
FREE($group$-&gt;$group_dset$);
FREE($group$);
<span style="color: #a020f0;">return</span> <span style="color: #008b8b;">NULL</span>;
}
fseek($group$-&gt;file, 0L, SEEK_SET);
file-&gt;$group$ = $group$;
<span style="color: #a020f0;">return</span> $group$;
}
</pre>
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<div id="outline-container-orgdf7c991" class="outline-3">
<h3 id="orgdf7c991"><span class="section-number-3">1.6</span> Template for text flush struct</h3>
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<div class="outline-text-3" id="text-1-6">
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">trexio_exit_code</span>
<span style="color: #0000ff;">trexio_text_flush_$group$</span> (<span style="color: #228b22;">trexio_text_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>)
{
<span style="color: #a020f0;">if</span> (file == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_1;
<span style="color: #a020f0;">if</span> (file-&gt;parent.mode == <span style="color: #8b2252;">'r'</span>) <span style="color: #a020f0;">return</span> TREXIO_READONLY;
$group$_t* $group$ = file-&gt;$group$;
<span style="color: #a020f0;">if</span> ($group$ == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
<span style="color: #a020f0;">if</span> ($group$-&gt;to_flush == 0) <span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
<span style="color: #228b22;">FILE</span>* <span style="color: #a0522d;">f</span> = $group$-&gt;file;
<span style="color: #a020f0;">if</span> (f == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_1;
fseek(f, 0L, SEEK_SET);
/* <span style="color: #b22222;">Write the dimensioning variables </span>*/
// <span style="color: #b22222;">START REPEAT GROUP_DSET</span>
fprintf(f, <span style="color: #8b2252;">"rank_$group_dset$ %u\n"</span>, $group$-&gt;rank_$group_dset$);
// <span style="color: #b22222;">workaround for the case of missing blocks in the file</span>
<span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">size_$group_dset$</span> = 0;
<span style="color: #a020f0;">if</span> ($group$-&gt;rank_$group_dset$ != 0) size_$group_dset$ = 1;
<span style="color: #a020f0;">for</span> (<span style="color: #228b22;">unsigned</span> <span style="color: #228b22;">int</span> <span style="color: #a0522d;">i</span>=0; i&lt;$group$-&gt;rank_$group_dset$; ++i){
fprintf(f, <span style="color: #8b2252;">"dims_$group_dset$ %u %lu\n"</span>, i, $group$-&gt;dims_$group_dset$[i]);
size_$group_dset$ *= $group$-&gt;dims_$group_dset$[i];
}
// <span style="color: #b22222;">END REPEAT GROUP_DSET</span>
// <span style="color: #b22222;">START REPEAT GROUP_NUM</span>
fprintf(f, <span style="color: #8b2252;">"$group_num$ %lu\n"</span>, $group$-&gt;$group_num$);
// <span style="color: #b22222;">END REPEAT GROUP_NUM</span>
/* <span style="color: #b22222;">Write arrays </span>*/
// <span style="color: #b22222;">START REPEAT GROUP_DSET</span>
fprintf(f, <span style="color: #8b2252;">"$group_dset$\n"</span>);
<span style="color: #a020f0;">for</span> (<span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">i</span>=0 ; i&lt;size_$group_dset$ ; ++i) {
fprintf(f, <span style="color: #8b2252;">"%$group_dset_std_dtype_out$\n"</span>, $group$-&gt;$group_dset$[i]);
}
// <span style="color: #b22222;">END REPEAT GROUP_DSET</span>
fflush(f);
$group$-&gt;to_flush = 0;
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
}
</pre>
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<div id="outline-container-org5910239" class="outline-3">
<h3 id="org5910239"><span class="section-number-3">1.7</span> Template for text free memory</h3>
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<div class="outline-text-3" id="text-1-7">
<p>
Memory is allocated when reading. The following function frees memory.
</p>
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">trexio_exit_code</span>
<span style="color: #0000ff;">trexio_text_free_$group$</span> (<span style="color: #228b22;">trexio_text_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>)
{
<span style="color: #a020f0;">if</span> (file == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_1;
<span style="color: #a020f0;">if</span> (file-&gt;parent.mode != <span style="color: #8b2252;">'r'</span>) {
<span style="color: #228b22;">trexio_exit_code</span> <span style="color: #a0522d;">rc</span> = trexio_text_flush_$group$(file);
<span style="color: #a020f0;">if</span> (rc != TREXIO_SUCCESS) <span style="color: #a020f0;">return</span> TREXIO_FAILURE;
}
$group$_t* $group$ = file-&gt;$group$;
<span style="color: #a020f0;">if</span> ($group$ == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
<span style="color: #a020f0;">if</span> ($group$-&gt;file != <span style="color: #008b8b;">NULL</span>) {
fclose($group$-&gt;file);
$group$-&gt;file = <span style="color: #008b8b;">NULL</span>;
}
// <span style="color: #b22222;">START REPEAT GROUP_DSET</span>
<span style="color: #a020f0;">if</span> ($group$-&gt;$group_dset$ != <span style="color: #008b8b;">NULL</span>) {
FREE ($group$-&gt;$group_dset$);
}
// <span style="color: #b22222;">END REPEAT GROUP_DSET</span>
FREE ($group$);
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
}
</pre>
</div>
</div>
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<div id="outline-container-org92bacd4" class="outline-3">
<h3 id="org92bacd4"><span class="section-number-3">1.8</span> Template for has/read/write the <code>$group_num$</code> attribute</h3>
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<div class="outline-text-3" id="text-1-8">
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">trexio_exit_code</span>
<span style="color: #0000ff;">trexio_text_read_$group_num$</span> (<span style="color: #228b22;">trexio_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>, <span style="color: #228b22;">uint64_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">num</span>)
{
<span style="color: #a020f0;">if</span> (file == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_1;
<span style="color: #a020f0;">if</span> (num == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_2;
$group$_t* $group$ = trexio_text_read_$group$((<span style="color: #228b22;">trexio_text_t</span>*) file);
<span style="color: #a020f0;">if</span> ($group$ == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_FAILURE;
*num = $group$-&gt;$group_num$;
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
}
</pre>
</div>
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">trexio_exit_code</span>
<span style="color: #0000ff;">trexio_text_write_$group_num$</span> (<span style="color: #228b22;">trexio_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>, <span style="color: #a020f0;">const</span> <span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">num</span>)
{
<span style="color: #a020f0;">if</span> (file == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_1;
<span style="color: #a020f0;">if</span> (file-&gt;mode == <span style="color: #8b2252;">'r'</span>) <span style="color: #a020f0;">return</span> TREXIO_READONLY;
$group$_t* $group$ = trexio_text_read_$group$((<span style="color: #228b22;">trexio_text_t</span>*) file);
<span style="color: #a020f0;">if</span> ($group$ == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_FAILURE;
$group$-&gt;$group_num$ = num;
$group$-&gt;to_flush = 1;
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
}
</pre>
</div>
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">trexio_exit_code</span>
<span style="color: #0000ff;">trexio_text_has_$group_num$</span> (<span style="color: #228b22;">trexio_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>)
{
<span style="color: #a020f0;">if</span> (file == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_1;
$group$_t* $group$ = trexio_text_read_$group$((<span style="color: #228b22;">trexio_text_t</span>*) file);
<span style="color: #a020f0;">if</span> ($group$ == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_FAILURE;
<span style="color: #a020f0;">if</span> ($group$-&gt;$group_num$ &gt; 0L){
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
} <span style="color: #a020f0;">else</span> {
<span style="color: #a020f0;">return</span> TREXIO_HAS_NOT;
}
}
</pre>
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<div id="outline-container-org9f73219" class="outline-3">
<h3 id="org9f73219"><span class="section-number-3">1.9</span> Template for has/read/write the <code>$group_dset$</code> dataset</h3>
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<div class="outline-text-3" id="text-1-9">
<p>
The <code>group_dset</code> array is assumed allocated with the appropriate size.
</p>
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">trexio_exit_code</span>
<span style="color: #0000ff;">trexio_text_read_$group_dset$</span> (<span style="color: #228b22;">trexio_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>, $group_dset_dtype$* <span style="color: #a020f0;">const</span> $group_dset$,
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">uint32_t</span> <span style="color: #a0522d;">rank</span>, <span style="color: #a020f0;">const</span> <span style="color: #228b22;">uint64_t</span>* <span style="color: #a0522d;">dims</span>)
{
<span style="color: #a020f0;">if</span> (file == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_1;
<span style="color: #a020f0;">if</span> ($group_dset$ == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_2;
$group$_t* <span style="color: #a020f0;">const</span> $group$ = trexio_text_read_$group$((<span style="color: #228b22;">trexio_text_t</span>*) file);
<span style="color: #a020f0;">if</span> ($group$ == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_FAILURE;
<span style="color: #a020f0;">if</span> (rank != $group$-&gt;rank_$group_dset$) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_3;
<span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">dim_size</span> = 1;
<span style="color: #a020f0;">for</span> (<span style="color: #228b22;">unsigned</span> <span style="color: #228b22;">int</span> <span style="color: #a0522d;">i</span>=0; i&lt;rank; ++i){
<span style="color: #a020f0;">if</span> (dims[i] != $group$-&gt;dims_$group_dset$[i]) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_4;
dim_size *= dims[i];
}
<span style="color: #a020f0;">for</span> (<span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">i</span>=0 ; i&lt;dim_size ; ++i) {
$group_dset$[i] = $group$-&gt;$group_dset$[i];
}
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
}
</pre>
</div>
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">trexio_exit_code</span>
<span style="color: #0000ff;">trexio_text_write_$group_dset$</span> (<span style="color: #228b22;">trexio_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>, <span style="color: #a020f0;">const</span> $group_dset_dtype$* $group_dset$,
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">uint32_t</span> <span style="color: #a0522d;">rank</span>, <span style="color: #a020f0;">const</span> <span style="color: #228b22;">uint64_t</span>* <span style="color: #a0522d;">dims</span>)
{
<span style="color: #a020f0;">if</span> (file == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_1;
<span style="color: #a020f0;">if</span> ($group_dset$ == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_2;
<span style="color: #a020f0;">if</span> (file-&gt;mode == <span style="color: #8b2252;">'r'</span>) <span style="color: #a020f0;">return</span> TREXIO_READONLY;
$group$_t* <span style="color: #a020f0;">const</span> $group$ = trexio_text_read_$group$((<span style="color: #228b22;">trexio_text_t</span>*) file);
<span style="color: #a020f0;">if</span> ($group$ == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_FAILURE;
<span style="color: #a020f0;">if</span> ($group$-&gt;$group_dset$ != <span style="color: #008b8b;">NULL</span>) {
FREE($group$-&gt;$group_dset$);
}
$group$-&gt;rank_$group_dset$ = rank;
<span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">dim_size</span> = 1;
<span style="color: #a020f0;">for</span> (<span style="color: #228b22;">unsigned</span> <span style="color: #228b22;">int</span> <span style="color: #a0522d;">i</span>=0; i&lt;$group$-&gt;rank_$group_dset$; ++i){
$group$-&gt;dims_$group_dset$[i] = dims[i];
dim_size *= dims[i];
}
$group$-&gt;$group_dset$ = CALLOC(dim_size, $group_dset_dtype$);
<span style="color: #a020f0;">for</span> (<span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">i</span>=0 ; i&lt;dim_size ; ++i) {
$group$-&gt;$group_dset$[i] = $group_dset$[i];
}
$group$-&gt;to_flush = 1;
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
}
</pre>
</div>
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">trexio_exit_code</span>
<span style="color: #0000ff;">trexio_text_has_$group_dset$</span> (<span style="color: #228b22;">trexio_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>)
{
<span style="color: #a020f0;">if</span> (file == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_1;
$group$_t* <span style="color: #a020f0;">const</span> $group$ = trexio_text_read_$group$((<span style="color: #228b22;">trexio_text_t</span>*) file);
<span style="color: #a020f0;">if</span> ($group$ == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_FAILURE;
<span style="color: #a020f0;">if</span> ($group$-&gt;rank_$group_dset$ &gt; 0){
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
} <span style="color: #a020f0;">else</span> {
<span style="color: #a020f0;">return</span> TREXIO_HAS_NOT;
}
}
</pre>
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<div id="outline-container-org0289f90" class="outline-3">
<h3 id="org0289f90"><span class="section-number-3">1.10</span> RDM struct (hard-coded)</h3>
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<div class="outline-text-3" id="text-1-10">
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<div id="outline-container-orgffaf7f6" class="outline-4">
<h4 id="orgffaf7f6"><span class="section-number-4">1.10.1</span> Read the complete struct</h4>
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<div class="outline-text-4" id="text-1-10-1">
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">rdm_t</span>* <span style="color: #0000ff;">trexio_text_read_rdm</span>(<span style="color: #228b22;">trexio_text_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>);
</pre>
</div>
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">rdm_t</span>* <span style="color: #0000ff;">trexio_text_read_rdm</span>(<span style="color: #228b22;">trexio_text_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>) {
<span style="color: #a020f0;">if</span> (file == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> <span style="color: #008b8b;">NULL</span>;
<span style="color: #a020f0;">if</span> (file-&gt;rdm != <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> file-&gt;rdm;
/* <span style="color: #b22222;">Allocate the data structure </span>*/
<span style="color: #228b22;">rdm_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">rdm</span> = MALLOC(rdm_t);
assert (rdm != <span style="color: #008b8b;">NULL</span>);
rdm-&gt;one_e = <span style="color: #008b8b;">NULL</span>;
rdm-&gt;two_e_file_name = <span style="color: #008b8b;">NULL</span>;
rdm-&gt;file = <span style="color: #008b8b;">NULL</span>;
rdm-&gt;to_flush = 0;
/* <span style="color: #b22222;">Try to open the file. If the file does not exist, return </span>*/
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">char</span>* <span style="color: #a0522d;">rdm_file_name</span> = <span style="color: #8b2252;">"/rdm.txt"</span>;
<span style="color: #228b22;">size_t</span> <span style="color: #a0522d;">str_size</span> = strlen(file-&gt;parent.file_name) + strlen(rdm_file_name) + 1;
<span style="color: #228b22;">char</span> * <span style="color: #a0522d;">file_name</span> = CALLOC(str_size, <span style="color: #228b22;">char</span>);
assert (file_name != <span style="color: #008b8b;">NULL</span>);
strncpy (file_name, file-&gt;parent.file_name, str_size);
strncat (file_name, rdm_file_name, strlen(rdm_file_name));
/* <span style="color: #b22222;">If the file exists, read it </span>*/
<span style="color: #228b22;">FILE</span>* <span style="color: #a0522d;">f</span> = fopen(file_name,<span style="color: #8b2252;">"r"</span>);
<span style="color: #a020f0;">if</span> (f != <span style="color: #008b8b;">NULL</span>) {
/* <span style="color: #b22222;">Find size of file to allocate the max size of the string buffer </span>*/
fseek(f, 0L, SEEK_END);
<span style="color: #228b22;">size_t</span> <span style="color: #a0522d;">sz</span> = ftell(f);
fseek(f, 0L, SEEK_SET);
sz = (sz &lt; 1024) ? (1024) : (sz);
<span style="color: #228b22;">char</span>* <span style="color: #a0522d;">buffer</span> = CALLOC(sz, <span style="color: #228b22;">char</span>);
/* <span style="color: #b22222;">Read the dimensioning variables </span>*/
<span style="color: #228b22;">int</span> <span style="color: #a0522d;">rc</span>;
rc = fscanf(f, <span style="color: #8b2252;">"%1023s"</span>, buffer);
assert (rc == 1);
assert (strcmp(buffer, <span style="color: #8b2252;">"dim_one_e"</span>) == 0);
rc = fscanf(f, <span style="color: #8b2252;">"%lu"</span>, &amp;(rdm-&gt;dim_one_e));
assert (rc == 1);
/* <span style="color: #b22222;">Allocate arrays </span>*/
rdm-&gt;one_e = CALLOC(rdm-&gt;dim_one_e, <span style="color: #228b22;">double</span>);
assert (rdm-&gt;one_e != <span style="color: #008b8b;">NULL</span>);
/* <span style="color: #b22222;">Read one_e </span>*/
rc = fscanf(f, <span style="color: #8b2252;">"%1023s"</span>, buffer);
assert (rc == 1);
assert (strcmp(buffer, <span style="color: #8b2252;">"one_e"</span>) == 0);
<span style="color: #a020f0;">for</span> (<span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">i</span>=0 ; i&lt;rdm-&gt;dim_one_e; ++i) {
rc = fscanf(f, <span style="color: #8b2252;">"%lf"</span>, &amp;(rdm-&gt;one_e[i]));
assert (rc == 1);
}
/* <span style="color: #b22222;">Read two_e </span>*/
rc = fscanf(f, <span style="color: #8b2252;">"%1023s"</span>, buffer);
assert (rc == 1);
assert (strcmp(buffer, <span style="color: #8b2252;">"two_e_file_name"</span>) == 0);
rc = fscanf(f, <span style="color: #8b2252;">"%1023s"</span>, buffer);
assert (rc == 1);
str_size = strlen(buffer);
rdm-&gt;two_e_file_name = CALLOC(str_size,<span style="color: #228b22;">char</span>);
strncpy(rdm-&gt;two_e_file_name, buffer, str_size);
FREE(buffer);
fclose(f);
f = <span style="color: #008b8b;">NULL</span>;
}
<span style="color: #a020f0;">if</span> (file-&gt;parent.mode == <span style="color: #8b2252;">'w'</span>) {
rdm-&gt;file = fopen(file_name,<span style="color: #8b2252;">"a"</span>);
} <span style="color: #a020f0;">else</span> {
rdm-&gt;file = fopen(file_name,<span style="color: #8b2252;">"r"</span>);
}
FREE(file_name);
file-&gt;rdm = rdm ;
<span style="color: #a020f0;">return</span> rdm;
}
</pre>
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<div id="outline-container-org6f476d8" class="outline-4">
<h4 id="org6f476d8"><span class="section-number-4">1.10.2</span> Flush the complete struct</h4>
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<div class="outline-text-4" id="text-1-10-2">
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">trexio_exit_code</span> <span style="color: #0000ff;">trexio_text_flush_rdm</span>(<span style="color: #228b22;">trexio_text_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>);
</pre>
</div>
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">trexio_exit_code</span> <span style="color: #0000ff;">trexio_text_flush_rdm</span>(<span style="color: #228b22;">trexio_text_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>) {
<span style="color: #a020f0;">if</span> (file == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_1;
<span style="color: #a020f0;">if</span> (file-&gt;parent.mode == <span style="color: #8b2252;">'r'</span>) <span style="color: #a020f0;">return</span> TREXIO_READONLY;
<span style="color: #228b22;">rdm_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">rdm</span> = file-&gt;rdm;
<span style="color: #a020f0;">if</span> (rdm == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
<span style="color: #a020f0;">if</span> (rdm-&gt;to_flush == 0) <span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
<span style="color: #228b22;">FILE</span>* <span style="color: #a0522d;">f</span> = rdm-&gt;file;
assert (f != <span style="color: #008b8b;">NULL</span>);
fseek(f, 0L, SEEK_SET);
/* <span style="color: #b22222;">Write the dimensioning variables </span>*/
fprintf(f, <span style="color: #8b2252;">"num %lu\n"</span>, rdm-&gt;dim_one_e);
/* <span style="color: #b22222;">Write arrays </span>*/
fprintf(f, <span style="color: #8b2252;">"one_e\n"</span>);
<span style="color: #a020f0;">for</span> (<span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">i</span>=0 ; i&lt; rdm-&gt;dim_one_e; ++i) {
fprintf(f, <span style="color: #8b2252;">"%lf\n"</span>, rdm-&gt;one_e[i]);
}
fprintf(f, <span style="color: #8b2252;">"two_e_file_name\n"</span>);
fprintf(f, <span style="color: #8b2252;">"%s\n"</span>, rdm-&gt;two_e_file_name);
fflush(f);
rdm-&gt;to_flush = 0;
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
}
</pre>
</div>
</div>
</div>
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<div id="outline-container-org39bf352" class="outline-4">
<h4 id="org39bf352"><span class="section-number-4">1.10.3</span> Free memory</h4>
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<div class="outline-text-4" id="text-1-10-3">
<p>
Memory is allocated when reading. The followig function frees memory.
</p>
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">trexio_exit_code</span> <span style="color: #0000ff;">trexio_text_free_rdm</span>(<span style="color: #228b22;">trexio_text_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>);
</pre>
</div>
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">trexio_exit_code</span> <span style="color: #0000ff;">trexio_text_free_rdm</span>(<span style="color: #228b22;">trexio_text_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>) {
<span style="color: #a020f0;">if</span> (file == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_1;
<span style="color: #a020f0;">if</span> (file-&gt;parent.mode != <span style="color: #8b2252;">'r'</span>) {
<span style="color: #228b22;">trexio_exit_code</span> <span style="color: #a0522d;">rc</span> = trexio_text_flush_rdm(file);
<span style="color: #a020f0;">if</span> (rc != TREXIO_SUCCESS) <span style="color: #a020f0;">return</span> TREXIO_FAILURE;
}
<span style="color: #228b22;">rdm_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">rdm</span> = file-&gt;rdm;
<span style="color: #a020f0;">if</span> (rdm == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
<span style="color: #a020f0;">if</span> (rdm-&gt;file != <span style="color: #008b8b;">NULL</span>) {
fclose(rdm-&gt;file);
rdm-&gt;file = <span style="color: #008b8b;">NULL</span>;
}
<span style="color: #a020f0;">if</span> (rdm-&gt;one_e != <span style="color: #008b8b;">NULL</span>) {
FREE (rdm-&gt;one_e);
}
<span style="color: #a020f0;">if</span> (rdm-&gt;two_e_file_name != <span style="color: #008b8b;">NULL</span>) {
FREE (rdm-&gt;two_e_file_name);
}
free (rdm);
file-&gt;rdm = <span style="color: #008b8b;">NULL</span>;
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
}
</pre>
</div>
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<div id="outline-container-org09e11e1" class="outline-4">
<h4 id="org09e11e1"><span class="section-number-4">1.10.4</span> Read/Write the one<sub>e</sub> attribute</h4>
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<div class="outline-text-4" id="text-1-10-4">
<p>
The <code>one_e</code> array is assumed allocated with the appropriate size.
</p>
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">trexio_exit_code</span>
<span style="color: #0000ff;">trexio_text_read_rdm_one_e</span>(<span style="color: #228b22;">trexio_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>,
<span style="color: #228b22;">double</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">one_e</span>,
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">dim_one_e</span>);
<span style="color: #228b22;">trexio_exit_code</span>
<span style="color: #0000ff;">trexio_text_write_rdm_one_e</span>(<span style="color: #228b22;">trexio_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>,
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">double</span>* <span style="color: #a0522d;">one_e</span>,
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">dim_one_e</span>);
</pre>
</div>
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">trexio_exit_code</span>
<span style="color: #0000ff;">trexio_text_read_rdm_one_e</span>(<span style="color: #228b22;">trexio_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>,
<span style="color: #228b22;">double</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">one_e</span>,
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">dim_one_e</span>)
{
<span style="color: #a020f0;">if</span> (file == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_1;
<span style="color: #a020f0;">if</span> (one_e == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_2;
<span style="color: #228b22;">rdm_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">rdm</span> = trexio_text_read_rdm((<span style="color: #228b22;">trexio_text_t</span>*) file);
<span style="color: #a020f0;">if</span> (rdm == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_FAILURE;
<span style="color: #a020f0;">if</span> (dim_one_e != rdm-&gt;dim_one_e) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_3;
<span style="color: #a020f0;">for</span> (<span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">i</span>=0 ; i&lt;dim_one_e ; ++i) {
one_e[i] = rdm-&gt;one_e[i];
}
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
}
<span style="color: #228b22;">trexio_exit_code</span>
<span style="color: #0000ff;">trexio_text_write_rdm_one_e</span>(<span style="color: #228b22;">trexio_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>,
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">double</span>* <span style="color: #a0522d;">one_e</span>,
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">dim_one_e</span>)
{
<span style="color: #a020f0;">if</span> (file == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_1;
<span style="color: #a020f0;">if</span> (one_e == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_2;
<span style="color: #a020f0;">if</span> (file-&gt;mode != <span style="color: #8b2252;">'r'</span>) <span style="color: #a020f0;">return</span> TREXIO_READONLY;
<span style="color: #228b22;">rdm_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">rdm</span> = trexio_text_read_rdm((<span style="color: #228b22;">trexio_text_t</span>*) file);
<span style="color: #a020f0;">if</span> (rdm == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_FAILURE;
rdm-&gt;dim_one_e = dim_one_e;
<span style="color: #a020f0;">for</span> (<span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">i</span>=0 ; i&lt;dim_one_e ; ++i) {
rdm-&gt;one_e[i] = one_e[i];
}
rdm-&gt;to_flush = 1;
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
}
</pre>
</div>
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<div id="outline-container-org5cd1d66" class="outline-4">
<h4 id="org5cd1d66"><span class="section-number-4">1.10.5</span> Read/Write the two<sub>e</sub> attribute</h4>
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<div class="outline-text-4" id="text-1-10-5">
<p>
<code>two_e</code> is a sparse data structure, which can be too large to fit
in memory. So we provide functions to read and write it by
chunks.
In the text back end, the easiest way to do it is to create a
file for each sparse float structure.
</p>
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">trexio_exit_code</span>
<span style="color: #0000ff;">trexio_text_buffered_read_rdm_two_e</span>(<span style="color: #228b22;">trexio_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>,
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">offset</span>,
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">size</span>,
<span style="color: #228b22;">int64_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">index</span>,
<span style="color: #228b22;">double</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">value</span>);
<span style="color: #228b22;">trexio_exit_code</span>
<span style="color: #0000ff;">trexio_text_buffered_write_rdm_two_e</span>(<span style="color: #228b22;">trexio_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>,
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">offset</span>,
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">size</span>,
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">int64_t</span>* <span style="color: #a0522d;">index</span>,
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">double</span>* <span style="color: #a0522d;">value</span>);
</pre>
</div>
<div class="org-src-container">
<pre class="src src-c"><span style="color: #228b22;">trexio_exit_code</span>
<span style="color: #0000ff;">trexio_text_buffered_read_rdm_two_e</span>(<span style="color: #228b22;">trexio_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>,
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">offset</span>,
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">size</span>,
<span style="color: #228b22;">int64_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">index</span>,
<span style="color: #228b22;">double</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">value</span>)
{
<span style="color: #a020f0;">if</span> (file == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_1;
<span style="color: #a020f0;">if</span> (index == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_4;
<span style="color: #a020f0;">if</span> (value == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_5;
<span style="color: #228b22;">rdm_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">rdm</span> = trexio_text_read_rdm((<span style="color: #228b22;">trexio_text_t</span>*) file);
<span style="color: #a020f0;">if</span> (rdm == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_FAILURE;
<span style="color: #228b22;">FILE</span>* <span style="color: #a0522d;">f</span> = fopen(rdm-&gt;two_e_file_name, <span style="color: #8b2252;">"r"</span>);
<span style="color: #a020f0;">if</span> (f == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_END;
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">line_length</span> = 64L;
fseek(f, (<span style="color: #228b22;">long</span>) <span style="color: #228b22;">offset</span> * <span style="color: #a0522d;">line_length</span>, <span style="color: #a0522d;">SEEK_SET</span>);
<span style="color: #a020f0;">for</span> (<span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">i</span>=0 ; i&lt;size ; ++i) {
<span style="color: #228b22;">int</span> <span style="color: #a0522d;">rc</span> = fscanf(f, <span style="color: #8b2252;">"%9ld %9ld %9ld %9ld %24le\n"</span>,
&amp;index[4*i],
&amp;index[4*i+1],
&amp;index[4*i+2],
&amp;index[4*i+3],
&amp;value[i]);
<span style="color: #a020f0;">if</span> (rc == 5) {
/* <span style="color: #b22222;">Do nothing </span>*/
} <span style="color: #a020f0;">else</span> <span style="color: #a020f0;">if</span> (rc == EOF) {
<span style="color: #a020f0;">return</span> TREXIO_END;
}
}
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
}
<span style="color: #228b22;">trexio_exit_code</span>
<span style="color: #0000ff;">trexio_text_buffered_write_rdm_two_e</span>(<span style="color: #228b22;">trexio_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">file</span>,
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">offset</span>,
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">size</span>,
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">int64_t</span>* <span style="color: #a0522d;">index</span>,
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">double</span>* <span style="color: #a0522d;">value</span>)
{
<span style="color: #a020f0;">if</span> (file == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_1;
<span style="color: #a020f0;">if</span> (index == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_4;
<span style="color: #a020f0;">if</span> (value == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_INVALID_ARG_5;
<span style="color: #a020f0;">if</span> (file-&gt;mode != <span style="color: #8b2252;">'r'</span>) <span style="color: #a020f0;">return</span> TREXIO_READONLY;
<span style="color: #228b22;">rdm_t</span>* <span style="color: #a020f0;">const</span> <span style="color: #a0522d;">rdm</span> = trexio_text_read_rdm((<span style="color: #228b22;">trexio_text_t</span>*) file);
<span style="color: #a020f0;">if</span> (rdm == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_FAILURE;
<span style="color: #228b22;">FILE</span>* <span style="color: #a0522d;">f</span> = fopen(rdm-&gt;two_e_file_name, <span style="color: #8b2252;">"w"</span>);
<span style="color: #a020f0;">if</span> (f == <span style="color: #008b8b;">NULL</span>) <span style="color: #a020f0;">return</span> TREXIO_FAILURE;
<span style="color: #a020f0;">const</span> <span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">line_length</span> = 64L;
fseek(f, (<span style="color: #228b22;">long</span>) <span style="color: #228b22;">offset</span> * <span style="color: #a0522d;">line_length</span>, <span style="color: #a0522d;">SEEK_SET</span>);
<span style="color: #a020f0;">for</span> (<span style="color: #228b22;">uint64_t</span> <span style="color: #a0522d;">i</span>=0 ; i&lt;size ; ++i) {
<span style="color: #228b22;">int</span> <span style="color: #a0522d;">rc</span> = fprintf(f, <span style="color: #8b2252;">"%9ld %9ld %9ld %9ld %24le\n"</span>,
index[4*i],
index[4*i+1],
index[4*i+2],
index[4*i+3],
value[i]);
<span style="color: #a020f0;">if</span> (rc != 5) <span style="color: #a020f0;">return</span> TREXIO_FAILURE;
}
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
}
</pre>
</div>
</div>
</div>
</div>
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<div id="postamble" class="status">
<p class="author">Author: TREX-CoE</p>
Deploying to gh-pages from @ TREX-CoE/trexio@f42dccc5b987ad6f986313172a86e9143b5514f6 🚀
2021-05-03 15:59:05 +02:00
<p class="date">Created: 2021-05-03 Mon 13:59</p>
Deploying to gh-pages from @ TREX-CoE/trexio@35d91b0f1257c2153021f377d9304442ce8e6bac 🚀
2021-04-12 14:32:08 +02:00
<p class="validation"><a href="http://validator.w3.org/check?uri=referer">Validate</a></p>
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