<table><tr><td style="">anthonyfieroni added inline comments.
</td><a style="text-decoration: none; padding: 4px 8px; margin: 0 8px 8px; float: right; color: #464C5C; font-weight: bold; border-radius: 3px; background-color: #F7F7F9; background-image: linear-gradient(to bottom,#fff,#f1f0f1); display: inline-block; border: 1px solid rgba(71,87,120,.2);" href="https://phabricator.kde.org/D8536" rel="noreferrer">View Revision</a></tr></table><br /><div><strong>INLINE COMMENTS</strong><div><div style="margin: 6px 0 12px 0;"><div style="border: 1px solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a style="float: right; text-decoration: none;" href="https://phabricator.kde.org/D8536#inline-43096" rel="noreferrer">View Inline</a><span style="color: #4b4d51; font-weight: bold;">kpropertiesdialog.cpp:2795-2805</span></div>
<div style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; white-space: pre-wrap; clear: both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; background: rgba(251, 175, 175, .7);"> <span class="bright"></span><span class="n"><span class="bright">d</span></span><span class="bright"></span><span style="color: #aa2211"><span class="bright">-></span></span><span class="bright"></span><span class="n"><span class="bright">m_ui</span></span><span class="bright"></span><span class="p"><span class="bright">.</span></span><span class="bright"></span><span class="n"><span class="bright">calculateWidget</span></span><span class="bright"></span><span style="color: #aa2211"><span class="bright">-></span></span><span class="bright"></span><span class="n"><span class="bright">layout</span></span><span class="bright"></span><span class="p"><span class="bright">()</span></span><span class="bright"></span><span style="color: #aa2211"><span class="bright">-></span></span><span class="bright"></span><span class="n"><span class="bright">replaceWidget</span></span><span class="bright"></span><span class="p"><span class="bright">(</span></span><span class="bright"></span><span class="n"><span class="bright">d</span></span><span class="bright"></span><span style="color: #aa2211"><span class="bright">-></span></span><span class="bright"></span><span class="n"><span class="bright">m_ui</span></span><span class="bright"></span><span class="p"><span class="bright">.</span></span><span class="bright"></span><span class="n"><span class="bright">sha1Button</span></span><span class="bright"></span><span class="p"><span class="bright">,</span></span><span class="bright"> </span><span class="n"><span class="bright">label</span></span><span class="bright"></span><span class="p"><span class="bright">);</span></span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(251, 175, 175, .7);"> <span class="bright"></span><span class="n"><span class="bright">d</span></span><span class="bright"></span><span style="color: #aa2211"><span class="bright">-></span></span><span class="bright"></span><span class="n"><span class="bright">m_ui</span></span><span class="bright"></span><span class="p"><span class="bright">.</span></span><span class="bright"></span><span class="n"><span class="bright">sha1Button</span></span><span class="bright"></span><span style="color: #aa2211"><span class="bright">-></span></span><span class="bright"></span><span class="n"><span class="bright">hide</span></span><span class="bright"></span><span class="p"><span class="bright">(</span>);</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="bright"></span><span class="n"><span class="bright">std</span></span><span class="bright"></span><span style="color: #aa2211"><span class="bright">::</span></span><span class="bright"></span><span class="n"><span class="bright">function</span></span><span class="bright"></span><span style="color: #aa2211"><span class="bright"><</span></span><span class="bright"></span><span class="n"><span class="bright">QString</span></span><span class="bright"></span><span class="p"><span class="bright">(</span></span><span class="bright"></span><span class="n"><span class="bright">QCryptographicHash</span></span><span class="bright"></span><span style="color: #aa2211"><span class="bright">::</span></span><span class="bright"></span><span class="n"><span class="bright">Algorithm</span></span><span class="bright"></span><span class="p"><span class="bright">)</span></span><span class="bright"></span><span style="color: #aa2211"><span class="bright">></span></span><span class="bright"> </span><span class="n"><span class="bright">mapper</span></span><span class="bright"> </span><span style="color: #aa2211"><span class="bright">=</span></span><span class="bright"> </span><span class="p"><span class="bright">[</span></span><span class="bright"></span><span style="color: #aa4000"><span class="bright">this</span></span><span class="bright"></span><span class="p"><span class="bright">](</span></span><span class="bright"></span><span class="n"><span class="bright">QCryptographicHash</span></span><span class="bright"></span><span style="color: #aa2211"><span class="bright">::</span></span><span class="bright"></span><span class="n"><span class="bright">Algorithm</span></span><span class="bright"> </span><span class="n"><span class="bright">alg</span></span><span class="bright"></span><span class="p"><span class="bright">)</span></span><span class="bright"> </span><span class="p"><span class="bright">{</span></span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="bright"> </span><span style="color: #aa4000"><span class="bright">const</span></span><span class="bright"> </span><span class="n"><span class="bright">QString</span></span><span class="bright"> </span><span class="n"><span class="bright">cache</span></span><span class="bright"> </span><span style="color: #aa2211"><span class="bright">=</span></span><span class="bright"> </span><span class="n"><span class="bright">cachedChecksum</span></span><span class="bright"></span><span class="p"><span class="bright">(</span></span><span class="bright"></span><span class="n"><span class="bright">alg</span></span><span class="p">);</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">if</span> <span class="p">(</span><span style="color: #aa2211">!</span><span class="n">cache</span><span class="p">.</span><span class="n">isEmpty</span><span class="p">())</span> <span class="p">{</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">return</span> <span class="n">cache</span><span class="p">;</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="p">}</span>
</div><div style="padding: 0 8px; margin: 0 4px; ">
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(251, 175, 175, .7);"> <span class="bright"></span><span class="n"><span class="bright">show</span>Checksum</span><span class="p">(<span class="bright"></span></span><span class="bright"></span><span class="n"><span class="bright">QCryptographicHash</span></span><span class="bright"></span><span style="color: #aa2211"><span class="bright">::</span></span><span class="bright"></span><span class="n"><span class="bright">Sha1</span></span><span class="bright"></span><span class="p"><span class="bright">,</span></span><span class="bright"> </span><span class="n"><span class="bright">label</span></span><span class="bright"></span><span class="p"><span class="bright">,</span></span><span class="bright"> </span><span class="n"><span class="bright">d</span></span><span class="bright"></span><span style="color: #aa2211"><span class="bright">-></span></span><span class="bright"></span><span class="n"><span class="bright">m_ui</span></span><span class="bright"></span><span class="p"><span class="bright">.</span></span><span class="bright"></span><span class="n"><span class="bright">sha1CopyButton</span></span><span class="p">);</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="bright"> </span><span style="color: #aa4000"><span class="bright">const</span></span><span class="bright"> </span><span class="n"><span class="bright">QString</span></span><span class="bright"> </span><span class="n"><span class="bright">checksum</span></span><span class="bright"> </span><span style="color: #aa2211"><span class="bright">=</span></span><span class="bright"> </span><span class="n"><span class="bright">compute</span>Checksum</span><span class="p">(<span class="bright"></span></span><span class="bright"></span><span class="n"><span class="bright">alg</span></span><span class="bright"></span><span class="p"><span class="bright">,</span></span><span class="bright"> </span><span class="n"><span class="bright">properties</span></span><span class="bright"></span><span style="color: #aa2211"><span class="bright">-></span></span><span class="bright"></span><span class="n"><span class="bright">item</span></span><span class="bright"></span><span class="p"><span class="bright">().</span></span><span class="bright"></span><span class="n"><span class="bright">localPath</span></span><span class="bright"></span><span class="p"><span class="bright">()</span>);</span>
</div></div></div>
<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;">Better get localPath before concurrent function and you should use mutex as well, simultaneously read/write is data race i.e.</p>
<div class="remarkup-code-block" style="margin: 12px 0;" data-code-lang="text" data-sigil="remarkup-code-block"><pre class="remarkup-code" style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; padding: 12px; margin: 0; background: rgba(71, 87, 120, 0.08);">const auto itemPath = properties->item().localPath();
std::function<QString(QCryptographicHash::Algorithm)> mapper = [itemPath, this](QCryptographicHash::Algorithm alg) {
QMutexLocker locker(&d->mutex);</pre></div></div></div><br /><div style="border: 1px solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a style="float: right; text-decoration: none;" href="https://phabricator.kde.org/D8536#inline-43095" rel="noreferrer">View Inline</a><span style="color: #4b4d51; font-weight: bold;">kpropertiesdialog.cpp:3015</span></div>
<div style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; white-space: pre-wrap; clear: both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; "><span class="p">{</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(251, 175, 175, .7);"> <span class="bright"></span><span style="color: #aa4000"><span class="bright">switch</span></span><span class="bright"> </span><span class="p"><span class="bright">(</span></span><span class="bright"></span><span class="n"><span class="bright">algorithm</span></span><span class="bright"></span><span class="p"><span class="bright">)</span></span><span class="bright"> </span><span class="p"><span class="bright">{</span></span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(251, 175, 175, .7);"> <span class="bright"></span><span style="color: #aa4000"><span class="bright">case</span></span><span class="bright"> </span><span class="n"><span class="bright">QCryptographicHash</span></span><span class="bright"></span><span style="color: #aa2211"><span class="bright">::</span></span><span class="bright"></span><span style="color: #a0a000"><span class="bright">Md5</span></span><span class="bright"></span><span class="p"><span class="bright">:</span></span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(251, 175, 175, .7);"> <span class="n">d</span><span style="color: #aa2211">-></span><span class="n">m_md5</span> <span style="color: #aa2211">=</span> <span class="n">checksum</span><span class="p">;</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(251, 175, 175, .7);"> <span style="color: #aa4000">break</span><span class="p">;</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(251, 175, 175, .7);"> <span style="color: #aa4000">case</span> <span class="n">QCryptographicHash</span><span style="color: #aa2211">::</span><span style="color: #a0a000">Sha1</span><span class="p">:</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(251, 175, 175, .7);"> <span class="n">d</span><span style="color: #aa2211">-></span><span class="n">m_sha1</span> <span style="color: #aa2211">=</span> <span class="n">checksum</span><span class="p">;</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(251, 175, 175, .7);"> <span style="color: #aa4000">break</span><span class="p">;</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(251, 175, 175, .7);"> <span style="color: #aa4000">case</span> <span class="n">QCryptographicHash</span><span style="color: #aa2211">::</span><span style="color: #a0a000">Sha256</span><span class="p">:</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(251, 175, 175, .7);"> <span class="n">d</span><span style="color: #aa2211">-></span><span class="n">m_sha256</span> <span style="color: #aa2211">=</span> <span class="n">checksum</span><span class="p">;</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(251, 175, 175, .7);"> <span style="color: #aa4000">break</span><span class="p">;</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(251, 175, 175, .7);"> <span style="color: #aa4000">default</span><span style="color: #aa2211">:</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(251, 175, 175, .7);"> <span style="color: #aa4000">return</span><span class="p">;</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(251, 175, 175, .7);"> <span class="p">}</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="bright"></span><span class="n"><span class="bright">QMutexLocker</span></span><span class="bright"> </span><span class="n"><span class="bright">locker</span></span><span class="bright"></span><span class="p"><span class="bright">(</span></span><span class="bright"></span><span style="color: #aa2211"><span class="bright">&</span></span><span class="bright"></span><span class="n"><span class="bright">d</span></span><span class="bright"></span><span style="color: #aa2211"><span class="bright">-></span></span><span class="bright"></span><span class="n"><span class="bright">mutex</span></span><span class="bright"></span><span class="p"><span class="bright">);</span></span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="bright"></span><span class="n"><span class="bright">d</span></span><span class="bright"></span><span style="color: #aa2211"><span class="bright">-></span></span><span class="bright"></span><span class="n"><span class="bright">cache</span></span><span class="bright"></span><span class="p"><span class="bright">.</span></span><span class="bright"></span><span class="n"><span class="bright">insert</span></span><span class="bright"></span><span class="p"><span class="bright">(</span></span><span class="bright"></span><span class="n"><span class="bright">algorithm</span></span><span class="bright"></span><span class="p"><span class="bright">,</span></span><span class="bright"> </span><span class="n"><span class="bright">checksum</span></span><span class="bright"></span><span class="p"><span class="bright">);</span></span>
</div></div></div>
<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;">Mutex is not needed here.</p></div></div></div></div></div><br /><div><strong>REPOSITORY</strong><div><div>R241 KIO</div></div></div><br /><div><strong>REVISION DETAIL</strong><div><a href="https://phabricator.kde.org/D8536" rel="noreferrer">https://phabricator.kde.org/D8536</a></div></div><br /><div><strong>To: </strong>petermajchrak, elvisangelaccio, VDG, colomar<br /><strong>Cc: </strong>colomar, anthonyfieroni, bcooksley, alexeymin, ngraham, elvisangelaccio, Frameworks<br /></div>