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<a href="https://gitlab.com/asosedkin">Alexander Sosedkin</a>
commented on a
discussion on <a href="https://gitlab.com/gnutls/gnutls/-/merge_requests/1483#note_725023497">lib/priority.c</a>:
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<pre style="margin: 0;">+<span id="LC1324" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">system_priority_<span class="idiff left right addition">file_loaded</span></span> <span class="o" style="font-weight: 600;">&&</span></span>
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<td class="new_line diff-line-num" data-linenumber="1325" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
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<pre style="margin: 0;"> <span id="LC1325" class="line" lang="c"> <span class="n" style="color: #333;">sb</span><span class="p">.</span><span class="n" style="color: #333;">st_mtime</span> <span class="o" style="font-weight: 600;">==</span> <span class="n" style="color: #333;">system_priority_last_mod</span><span class="p">)</span> <span class="p">{</span></span>
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<pre style="margin: 0;"> <span id="LC1326" class="line" lang="c"> <span class="n" style="color: #333;">_gnutls_debug_log</span><span class="p">(</span><span class="s" style="color: #d14;">"cfg: system priority %s has not changed</span><span class="se" style="color: #d14;">\n</span><span class="s" style="color: #d14;">"</span><span class="p">,</span></span>
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<pre style="margin: 0;"> <span id="LC1327" class="line" lang="c"> <span class="n" style="color: #333;">system_priority_file</span><span class="p">);</span></span>
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<pre style="margin: 0;"> <span id="LC1328" class="line" lang="c"> <span class="k" style="font-weight: 600;">goto</span> <span class="n" style="color: #333;">out</span><span class="p">;</span></span>
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<pre style="margin: 0;"> <span id="LC1329" class="line" lang="c"> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC1330" class="line" lang="c"></span>
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<pre style="margin: 0;">-<span id="LC1332" class="line" lang="c"> <span class="n" style="color: #333;">_name_val_array_clear</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">system_wide_priority_strings</span><span class="p">);</span></span>
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<pre style="margin: 0;">-<span id="LC1333" class="line" lang="c"> <span class="n" style="color: #333;">system_wide_priority_strings_init</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">0</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC1331" class="line" lang="c"> <span class="n" style="color: #333;">GNUTLS_STATIC_RWLOCK_UNLOCK</span><span class="p">(</span><span class="n" style="color: #333;">system_wide_config_rwlock</span><span class="p">);</span></span>
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<pre style="margin: 0;">+<span id="LC1332" class="line" lang="c"></span>
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<pre style="margin: 0;">+<span id="LC1333" class="line" lang="c"> <span class="n" style="color: #333;">GNUTLS_STATIC_RWLOCK_WRLOCK</span><span class="p">(</span><span class="n" style="color: #333;">system_wide_config_rwlock</span><span class="p">);</span></span>
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<pre style="margin: 0;">+<span id="LC1334" class="line" lang="c"></span>
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<pre style="margin: 0;">+<span id="LC1335" class="line" lang="c"> <span class="cm" style="color: #998; font-style: italic;">/* Another thread has updated the system wide config while upgrading to</span></span>
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<pre style="margin: 0;">+<span id="LC1336" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * write lock. */</span></span>
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<pre style="margin: 0;">+<span id="LC1337" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">system_priority_last_mod</span> <span class="o" style="font-weight: 600;">>=</span> <span class="n" style="color: #333;">sb</span><span class="p">.</span><span class="n" style="color: #333;">st_mtime</span><span class="p">)</span> <span class="p">{</span></span>
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<p dir="auto">I'd rather strongly prefer we revert to the previous strict <code>!=</code> check and thus end up loading what's chronologically read from disk later, no matter what its relative mtime jump sign was. I think this leads to the least surprising behaviour possible.</p>
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