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<a href="https://gitlab.com/dueno">Daiki Ueno</a>
commented on a
discussion on <a href="https://gitlab.com/gnutls/gnutls/-/merge_requests/1483#note_720970920">lib/priority.c</a>:
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<pre style="margin: 0;"> <span id="LC1443" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * allow it to be updated without restarting</span></span>
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<pre style="margin: 0;"> <span id="LC1444" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * all applications</span></span>
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<pre style="margin: 0;"> <span id="LC1445" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> */</span></span>
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<pre style="margin: 0;">+<span id="LC1446" class="line" lang="c"> <span class="n" style="color: #333;">GNUTLS_STATIC_MUTEX_LOCK</span><span class="p">(</span><span class="n" style="color: #333;">system_wide_config_mutex</span><span class="p">);</span></span>
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<pre style="margin: 0;"> <span id="LC1447" class="line" lang="c"> <span class="n" style="color: #333;">_gnutls_update_system_priorities</span><span class="p">();</span></span>
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<p dir="auto">The motivation is to make the critical section smaller and more obvious. I agree that having a lock outside the loop would increase performance, though I'd say the usage of mutex here is cheap enough.</p>
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