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snapraid/cov/cmdline/rehash.c.gcov.html
Andrea Mazzoleni a53ac4a175 Auto update
2026-03-15 18:52:43 +01:00

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<td width="35%" class="headerValue"><a href="../index.html">top level</a> - <a href="index.html">cmdline</a> - rehash.c<span style="font-size: 80%;"> (source / <a href="rehash.c.func-sort-c.html">functions</a>)</span></td>
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<td width="10%" class="headerCovTableHead">Hit</td>
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<td class="headerItem">Test:</td>
<td class="headerValue">lcov.info</td>
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<td class="headerItem">Lines:</td>
<td class="headerCovTableEntry">20</td>
<td class="headerCovTableEntry">21</td>
<td class="headerCovTableEntryHi">95.2 %</td>
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<td class="headerItem">Date:</td>
<td class="headerValue">2026-03-15 15:58:19</td>
<td></td>
<td class="headerItem">Functions:</td>
<td class="headerCovTableEntry">1</td>
<td class="headerCovTableEntry">1</td>
<td class="headerCovTableEntryHi">100.0 %</td>
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<pre class="sourceHeading"> Line data Source code</pre>
<pre class="source">
<a name="1"><span class="lineNum"> 1 </span> : /*</a>
<a name="2"><span class="lineNum"> 2 </span> : * Copyright (C) 2013 Andrea Mazzoleni</a>
<a name="3"><span class="lineNum"> 3 </span> : *</a>
<a name="4"><span class="lineNum"> 4 </span> : * This program is free software: you can redistribute it and/or modify</a>
<a name="5"><span class="lineNum"> 5 </span> : * it under the terms of the GNU General Public License as published by</a>
<a name="6"><span class="lineNum"> 6 </span> : * the Free Software Foundation, either version 3 of the License, or</a>
<a name="7"><span class="lineNum"> 7 </span> : * (at your option) any later version.</a>
<a name="8"><span class="lineNum"> 8 </span> : *</a>
<a name="9"><span class="lineNum"> 9 </span> : * This program is distributed in the hope that it will be useful,</a>
<a name="10"><span class="lineNum"> 10 </span> : * but WITHOUT ANY WARRANTY; without even the implied warranty of</a>
<a name="11"><span class="lineNum"> 11 </span> : * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</a>
<a name="12"><span class="lineNum"> 12 </span> : * GNU General Public License for more details.</a>
<a name="13"><span class="lineNum"> 13 </span> : *</a>
<a name="14"><span class="lineNum"> 14 </span> : * You should have received a copy of the GNU General Public License</a>
<a name="15"><span class="lineNum"> 15 </span> : * along with this program. If not, see &lt;http://www.gnu.org/licenses/&gt;.</a>
<a name="16"><span class="lineNum"> 16 </span> : */</a>
<a name="17"><span class="lineNum"> 17 </span> : </a>
<a name="18"><span class="lineNum"> 18 </span> : #include &quot;portable.h&quot;</a>
<a name="19"><span class="lineNum"> 19 </span> : </a>
<a name="20"><span class="lineNum"> 20 </span> : #include &quot;util.h&quot;</a>
<a name="21"><span class="lineNum"> 21 </span> : #include &quot;elem.h&quot;</a>
<a name="22"><span class="lineNum"> 22 </span> : #include &quot;import.h&quot;</a>
<a name="23"><span class="lineNum"> 23 </span> : #include &quot;state.h&quot;</a>
<a name="24"><span class="lineNum"> 24 </span> : #include &quot;parity.h&quot;</a>
<a name="25"><span class="lineNum"> 25 </span> : #include &quot;handle.h&quot;</a>
<a name="26"><span class="lineNum"> 26 </span> : #include &quot;raid/raid.h&quot;</a>
<a name="27"><span class="lineNum"> 27 </span> : </a>
<a name="28"><span class="lineNum"> 28 </span> : /****************************************************************************/</a>
<a name="29"><span class="lineNum"> 29 </span> : /* rehash */</a>
<a name="30"><span class="lineNum"> 30 </span> : </a>
<a name="31"><span class="lineNum"> 31 </span><span class="lineCov"> 1 : void state_rehash(struct snapraid_state* state)</span></a>
<a name="32"><span class="lineNum"> 32 </span> : {</a>
<a name="33"><span class="lineNum"> 33 </span> : block_off_t blockmax;</a>
<a name="34"><span class="lineNum"> 34 </span> : block_off_t i;</a>
<a name="35"><span class="lineNum"> 35 </span> : </a>
<a name="36"><span class="lineNum"> 36 </span><span class="lineCov"> 1 : blockmax = parity_allocated_size(state);</span></a>
<a name="37"><span class="lineNum"> 37 </span> : </a>
<a name="38"><span class="lineNum"> 38 </span> : /* check if a rehash is already in progress */</a>
<a name="39"><span class="lineNum"> 39 </span><span class="lineCov"> 1 : if (state-&gt;prevhash != HASH_UNDEFINED) {</span></a>
<a name="40"><span class="lineNum"> 40 </span> : /* LCOV_EXCL_START */</a>
<a name="41"><span class="lineNum"> 41 </span> : log_tag(&quot;summary:exit:already_in_progress\n&quot;);</a>
<a name="42"><span class="lineNum"> 42 </span> : log_fatal(EUSER, &quot;You already have a rehash in progress.\n&quot;);</a>
<a name="43"><span class="lineNum"> 43 </span> : exit(EXIT_FAILURE);</a>
<a name="44"><span class="lineNum"> 44 </span> : /* LCOV_EXCL_STOP */</a>
<a name="45"><span class="lineNum"> 45 </span> : }</a>
<a name="46"><span class="lineNum"> 46 </span> : </a>
<a name="47"><span class="lineNum"> 47 </span><span class="lineCov"> 1 : if (state-&gt;hash == state-&gt;besthash) {</span></a>
<a name="48"><span class="lineNum"> 48 </span> : /* LCOV_EXCL_START */</a>
<a name="49"><span class="lineNum"> 49 </span> : log_tag(&quot;summary:exit:not_required\n&quot;);</a>
<a name="50"><span class="lineNum"> 50 </span> : log_fatal(EUSER, &quot;You are already using the best hash for your platform.\n&quot;);</a>
<a name="51"><span class="lineNum"> 51 </span> : exit(EXIT_FAILURE);</a>
<a name="52"><span class="lineNum"> 52 </span> : /* LCOV_EXCL_STOP */</a>
<a name="53"><span class="lineNum"> 53 </span> : }</a>
<a name="54"><span class="lineNum"> 54 </span> : </a>
<a name="55"><span class="lineNum"> 55 </span> : /* copy the present hash as previous one */</a>
<a name="56"><span class="lineNum"> 56 </span><span class="lineCov"> 1 : state-&gt;prevhash = state-&gt;hash;</span></a>
<a name="57"><span class="lineNum"> 57 </span><span class="lineCov"> 1 : memcpy(state-&gt;prevhashseed, state-&gt;hashseed, HASH_MAX);</span></a>
<a name="58"><span class="lineNum"> 58 </span> : </a>
<a name="59"><span class="lineNum"> 59 </span> : /* set the new hash and seed */</a>
<a name="60"><span class="lineNum"> 60 </span><span class="lineCov"> 1 : state-&gt;hash = state-&gt;besthash;</span></a>
<a name="61"><span class="lineNum"> 61 </span><span class="lineCov"> 1 : if (randomize(state-&gt;hashseed, HASH_MAX) != 0) {</span></a>
<a name="62"><span class="lineNum"> 62 </span> : /* LCOV_EXCL_START */</a>
<a name="63"><span class="lineNum"> 63 </span> : log_fatal(errno, &quot;Failed to get random values.\n&quot;);</a>
<a name="64"><span class="lineNum"> 64 </span> : exit(EXIT_FAILURE);</a>
<a name="65"><span class="lineNum"> 65 </span> : /* LCOV_EXCL_STOP */</a>
<a name="66"><span class="lineNum"> 66 </span> : }</a>
<a name="67"><span class="lineNum"> 67 </span> : </a>
<a name="68"><span class="lineNum"> 68 </span> : /* mark all the block for rehashing */</a>
<a name="69"><span class="lineNum"> 69 </span><span class="lineCov"> 9276 : for (i = 0; i &lt; blockmax; ++i) {</span></a>
<a name="70"><span class="lineNum"> 70 </span> : snapraid_info info;</a>
<a name="71"><span class="lineNum"> 71 </span> : </a>
<a name="72"><span class="lineNum"> 72 </span> : /* if it's unused */</a>
<a name="73"><span class="lineNum"> 73 </span><span class="lineCov"> 9275 : info = info_get(&amp;state-&gt;infoarr, i);</span></a>
<a name="74"><span class="lineNum"> 74 </span><span class="lineCov"> 9275 : if (info == 0) {</span></a>
<a name="75"><span class="lineNum"> 75 </span> : /* skip it */</a>
<a name="76"><span class="lineNum"> 76 </span><span class="lineNoCov"> 0 : continue;</span></a>
<a name="77"><span class="lineNum"> 77 </span> : }</a>
<a name="78"><span class="lineNum"> 78 </span> : </a>
<a name="79"><span class="lineNum"> 79 </span><span class="lineCov"> 9275 : if (info_get_rehash(info)) {</span></a>
<a name="80"><span class="lineNum"> 80 </span> : /* LCOV_EXCL_START */</a>
<a name="81"><span class="lineNum"> 81 </span> : log_fatal(EINTERNAL, &quot;Internal inconsistency for a rehash already in progress\n&quot;);</a>
<a name="82"><span class="lineNum"> 82 </span> : os_abort();</a>
<a name="83"><span class="lineNum"> 83 </span> : /* LCOV_EXCL_STOP */</a>
<a name="84"><span class="lineNum"> 84 </span> : }</a>
<a name="85"><span class="lineNum"> 85 </span> : </a>
<a name="86"><span class="lineNum"> 86 </span> : /* enable the rehash */</a>
<a name="87"><span class="lineNum"> 87 </span><span class="lineCov"> 9275 : info = info_set_rehash(info);</span></a>
<a name="88"><span class="lineNum"> 88 </span> : </a>
<a name="89"><span class="lineNum"> 89 </span> : /* save it */</a>
<a name="90"><span class="lineNum"> 90 </span><span class="lineCov"> 9275 : info_set(&amp;state-&gt;infoarr, i, info);</span></a>
<a name="91"><span class="lineNum"> 91 </span> : }</a>
<a name="92"><span class="lineNum"> 92 </span> : </a>
<a name="93"><span class="lineNum"> 93 </span> : /* save the new content file */</a>
<a name="94"><span class="lineNum"> 94 </span><span class="lineCov"> 1 : state-&gt;need_write = 1;</span></a>
<a name="95"><span class="lineNum"> 95 </span> : </a>
<a name="96"><span class="lineNum"> 96 </span><span class="lineCov"> 1 : msg_status(&quot;A rehash is now scheduled. It will take place progressively in the next\n&quot;);</span></a>
<a name="97"><span class="lineNum"> 97 </span><span class="lineCov"> 1 : msg_status(&quot;'sync' and 'scrub' commands. You can check the rehash progress using the\n&quot;);</span></a>
<a name="98"><span class="lineNum"> 98 </span><span class="lineCov"> 1 : msg_status(&quot;'status' command.\n&quot;);</span></a>
<a name="99"><span class="lineNum"> 99 </span><span class="lineCov"> 1 : log_tag(&quot;summary:exit:scheduled\n&quot;);</span></a>
<a name="100"><span class="lineNum"> 100 </span><span class="lineCov"> 1 : }</span></a>
<a name="101"><span class="lineNum"> 101 </span> : </a>
</pre>
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<tr><td class="versionInfo">Generated by: <a href="https://github.com/linux-test-project/lcov" target="_parent">LCOV version 1.0</a></td></tr>
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