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@licstart The following is the entire license notice for the
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The JavaScript code in this tag is free software: you can
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<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>
<li><a href="#org1952291">1. TEXT back end</a>
<ul>
<li><a href="#orgf35ac40">1.1. Template for group-related structures in text back end</a></li>
<li><a href="#orgf3e2634">1.2. Template for general structure in text back end</a></li>
<li><a href="#org95e2a31">1.3. Initialize function (constant part)</a></li>
<li><a href="#org7cf0baa">1.4. Deinitialize function (templated part)</a></li>
<li><a href="#orgd81f432">1.5. Template for text read struct</a></li>
<li><a href="#orgd65acdb">1.6. Template for text flush struct</a></li>
<li><a href="#org4f3a171">1.7. Template for text free memory</a></li>
<li><a href="#org0077359">1.8. Template for has/read/write the <code>$group_num$</code> attribute</a></li>
<li><a href="#org4a2081c">1.9. Template for has/read/write the <code>$group_dset$</code> dataset</a></li>
<li><a href="#orgfa5686a">1.10. RDM struct (hard-coded)</a>
<ul>
<li><a href="#orgab0e444">1.10.1. Read the complete struct</a></li>
<li><a href="#org93d1f0d">1.10.2. Flush the complete struct</a></li>
<li><a href="#orgedc864f">1.10.3. Free memory</a></li>
<li><a href="#orgdf4e551">1.10.4. Read/Write the one<sub>e</sub> attribute</a></li>
<li><a href="#orge4e8689">1.10.5. Read/Write the two<sub>e</sub> attribute</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</div>
<div id="outline-container-org1952291" class="outline-2">
<h2 id="org1952291"><span class="section-number-2">1</span> TEXT back end</h2>
<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>
<div id="outline-container-orgf35ac40" class="outline-3">
<h3 id="orgf35ac40"><span class="section-number-3">1.1</span> Template for group-related structures in text back end</h3>
<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 $group_num$;
$group_dset_dtype$* $group_dset$;
<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];
<span style="color: #228b22;">char</span> <span style="color: #a0522d;">file_name</span>[TREXIO_MAX_FILENAME_LENGTH];
} $group$_t;
</pre>
</div>
</div>
</div>
<div id="outline-container-orgf3e2634" class="outline-3">
<h3 id="orgf3e2634"><span class="section-number-3">1.2</span> Template for general structure in text back end</h3>
<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;">char</span> <span style="color: #a0522d;">file_name</span>[TREXIO_MAX_FILENAME_LENGTH];
<span style="color: #228b22;">char</span> <span style="color: #a0522d;">two_e_file_name</span>[TREXIO_MAX_FILENAME_LENGTH];
} <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>
<div id="outline-container-org95e2a31" class="outline-3">
<h3 id="org95e2a31"><span class="section-number-3">1.3</span> Initialize function (constant part)</h3>
<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;">char</span> <span style="color: #a0522d;">file_name</span>[TREXIO_MAX_FILENAME_LENGTH];
strncpy (file_name, file-&gt;file_name, TREXIO_MAX_FILENAME_LENGTH);
strncat (file_name, lock_file_name, TREXIO_MAX_FILENAME_LENGTH-strlen(lock_file_name));
<span style="color: #a020f0;">if</span> (file_name[TREXIO_MAX_FILENAME_LENGTH-1] != <span style="color: #8b2252;">'\0'</span>) {
<span style="color: #a020f0;">return</span> TREXIO_LOCK_ERROR;
}
f-&gt;lock_file = open(file_name,O_WRONLY|O_CREAT|O_TRUNC, 0644);
<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>
</div>
</div>
</div>
<div id="outline-container-org7cf0baa" class="outline-3">
<h3 id="org7cf0baa"><span class="section-number-3">1.4</span> Deinitialize function (templated part)</h3>
<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>;
/* <span style="color: #b22222;">Error handling for this call is added by the generator </span>*/
rc = trexio_text_free_$group$( (<span style="color: #228b22;">trexio_text_t</span>*) file);
rc = trexio_text_free_rdm( (<span style="color: #228b22;">trexio_text_t</span>*) file);
<span style="color: #a020f0;">if</span> (rc != TREXIO_SUCCESS) <span style="color: #a020f0;">return</span> rc;
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
}
</pre>
</div>
</div>
</div>
<div id="outline-container-orgd81f432" class="outline-3">
<h3 id="orgd81f432"><span class="section-number-3">1.5</span> Template for text read struct</h3>
<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>;
strncpy ($group$-&gt;file_name, file-&gt;parent.file_name, TREXIO_MAX_FILENAME_LENGTH);
strncat ($group$-&gt;file_name, $group$_file_name,
TREXIO_MAX_FILENAME_LENGTH-strlen($group$_file_name));
<span style="color: #a020f0;">if</span> ($group$-&gt;file_name[TREXIO_MAX_FILENAME_LENGTH-1] != <span style="color: #8b2252;">'\0'</span>) {
FREE($group$);
<span style="color: #a020f0;">return</span> <span style="color: #008b8b;">NULL</span>;
}
/* <span style="color: #b22222;">If the file exists, read it </span>*/
<span style="color: #228b22;">FILE</span>* <span style="color: #a0522d;">f</span> = fopen($group$-&gt;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>) {
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);
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);
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);
fclose(f);
FREE($group$);
<span style="color: #a020f0;">return</span> <span style="color: #008b8b;">NULL</span>;
}
rc = fscanf(f, <span style="color: #8b2252;">"%"</span> SCNu64 <span style="color: #8b2252;">"\n"</span>, &amp;($group$-&gt;dims_$group_dset$[i]));
assert(!(rc != 1));
<span style="color: #a020f0;">if</span> (rc != 1) {
FREE(buffer);
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);
fclose(f);
FREE($group$);
<span style="color: #a020f0;">return</span> <span style="color: #008b8b;">NULL</span>;
}
rc = fscanf(f, <span style="color: #8b2252;">"%"</span> SCNu64 <span style="color: #8b2252;">""</span>, &amp;($group$-&gt;$group_num$));
assert(!(rc != 1));
<span style="color: #a020f0;">if</span> (rc != 1) {
FREE(buffer);
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);
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);
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);
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>;
}
file-&gt;$group$ = $group$;
<span style="color: #a020f0;">return</span> $group$;
}
</pre>
</div>
</div>
</div>
<div id="outline-container-orgd65acdb" class="outline-3">
<h3 id="orgd65acdb"><span class="section-number-3">1.6</span> Template for text flush struct</h3>
<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;
assert (file-&gt;parent.mode == <span style="color: #8b2252;">'w'</span>);
<span style="color: #228b22;">FILE</span>* <span style="color: #a0522d;">f</span> = fopen($group$-&gt;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_INVALID_ARG_1;
/* <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 %"</span> PRIu64 <span style="color: #8b2252;">"\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;">"$group_num$ %"</span> PRIu64 <span style="color: #8b2252;">"\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>
fclose(f);
$group$-&gt;to_flush = 0;
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
}
</pre>
</div>
</div>
</div>
<div id="outline-container-org4f3a171" class="outline-3">
<h3 id="org4f3a171"><span class="section-number-3">1.7</span> Template for text free memory</h3>
<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: #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>
</div>
<div id="outline-container-org0077359" class="outline-3">
<h3 id="org0077359"><span class="section-number-3">1.8</span> Template for has/read/write the <code>$group_num$</code> attribute</h3>
<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>
</div>
</div>
</div>
<div id="outline-container-org4a2081c" class="outline-3">
<h3 id="org4a2081c"><span class="section-number-3">1.9</span> Template for has/read/write the <code>$group_dset$</code> dataset</h3>
<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>
</div>
</div>
</div>
<div id="outline-container-orgfa5686a" class="outline-3">
<h3 id="orgfa5686a"><span class="section-number-3">1.10</span> RDM struct (hard-coded)</h3>
<div class="outline-text-3" id="text-1-10">
</div>
<div id="outline-container-orgab0e444" class="outline-4">
<h4 id="orgab0e444"><span class="section-number-4">1.10.1</span> Read the complete struct</h4>
<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: #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[0] = <span style="color: #8b2252;">'\0'</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>;
strncpy (rdm-&gt;file_name, file-&gt;parent.file_name, TREXIO_MAX_FILENAME_LENGTH);
strncat (rdm-&gt;file_name, rdm_file_name,
TREXIO_MAX_FILENAME_LENGTH-strlen(rdm_file_name));
<span style="color: #a020f0;">if</span> (rdm-&gt;file_name[TREXIO_MAX_FILENAME_LENGTH-1] != <span style="color: #8b2252;">'\0'</span>) {
FREE(rdm);
<span style="color: #a020f0;">return</span> <span style="color: #008b8b;">NULL</span>;
}
/* <span style="color: #b22222;">If the file exists, read it </span>*/
<span style="color: #228b22;">FILE</span>* <span style="color: #a0522d;">f</span> = fopen(rdm-&gt;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;">"%"</span> SCNu64 <span style="color: #8b2252;">""</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);
strncpy(rdm-&gt;two_e_file_name, buffer, 1024);
<span style="color: #a020f0;">if</span> (rdm-&gt;two_e_file_name[TREXIO_MAX_FILENAME_LENGTH-1] != <span style="color: #8b2252;">'\0'</span>) {
FREE(buffer);
FREE(rdm-&gt;one_e);
FREE(rdm);
fclose(f);
<span style="color: #a020f0;">return</span> <span style="color: #008b8b;">NULL</span>;
}
FREE(buffer);
fclose(f);
f = <span style="color: #008b8b;">NULL</span>;
}
file-&gt;rdm = rdm ;
<span style="color: #a020f0;">return</span> rdm;
}
</pre>
</div>
</div>
</div>
<div id="outline-container-org93d1f0d" class="outline-4">
<h4 id="org93d1f0d"><span class="section-number-4">1.10.2</span> Flush the complete struct</h4>
<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> = fopen(rdm-&gt;file_name,<span style="color: #8b2252;">"w"</span>);
assert (f != <span style="color: #008b8b;">NULL</span>);
/* <span style="color: #b22222;">Write the dimensioning variables </span>*/
fprintf(f, <span style="color: #8b2252;">"num %"</span> PRIu64 <span style="color: #8b2252;">"\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);
fclose(f);
rdm-&gt;to_flush = 0;
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
}
</pre>
</div>
</div>
</div>
<div id="outline-container-orgedc864f" class="outline-4">
<h4 id="orgedc864f"><span class="section-number-4">1.10.3</span> Free memory</h4>
<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;one_e != <span style="color: #008b8b;">NULL</span>) {
FREE (rdm-&gt;one_e);
}
free (rdm);
file-&gt;rdm = <span style="color: #008b8b;">NULL</span>;
<span style="color: #a020f0;">return</span> TREXIO_SUCCESS;
}
</pre>
</div>
</div>
</div>
<div id="outline-container-orgdf4e551" class="outline-4">
<h4 id="orgdf4e551"><span class="section-number-4">1.10.4</span> Read/Write the one<sub>e</sub> attribute</h4>
<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>
</div>
</div>
<div id="outline-container-orge4e8689" class="outline-4">
<h4 id="orge4e8689"><span class="section-number-4">1.10.5</span> Read/Write the two<sub>e</sub> attribute</h4>
<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;">"%9"</span> SCNd64 <span style="color: #8b2252;">" %9"</span> SCNd64 <span style="color: #8b2252;">" %9"</span> SCNd64 <span style="color: #8b2252;">" %9"</span> SCNd64 <span style="color: #8b2252;">" %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;">"%9"</span> PRId64 <span style="color: #8b2252;">" %9"</span> PRId64 <span style="color: #8b2252;">" %9"</span> PRId64 <span style="color: #8b2252;">" %9"</span> PRId64 <span style="color: #8b2252;">" %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>
</div>
</div>
<div id="postamble" class="status">
<p class="author">Author: TREX-CoE</p>
<p class="date">Created: 2021-06-07 Mon 12:06</p>
<p class="validation"><a href="http://validator.w3.org/check?uri=referer">Validate</a></p>
</div>
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