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<h3>
Eric S. Raymond pushed to branch master
at <a href="https://gitlab.com/NTPsec/ntpsec">NTPsec / ntpsec</a>
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<h4>
Commits:
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<strong><a href="https://gitlab.com/NTPsec/ntpsec/commit/42e2211d15e19c92b67851b928f15096ac5d89ae">42e2211d</a></strong>
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<span>by Eric S. Raymond</span>
<i>at 2016-10-01T11:09:41-04:00</i>
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<pre class="commit-message" style="margin: 0; white-space: pre-wrap">A note on avoiding struct timeval.
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<h4>1 changed file:</h4>
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devel/hacking.txt
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<h4>Changes:</h4>
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<a href="https://gitlab.com/NTPsec/ntpsec/commit/42e2211d15e19c92b67851b928f15096ac5d89ae#diff-0"><strong>devel/hacking.txt</strong></a>
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<td class="line_content match " style="background: #fafafa; color: rgba(0,0,0,0.3); padding-left: 0.5em; padding-right: 0.5em" bgcolor="#fafafa">@@ -82,6 +82,21 @@ http://www.unix.org/whitepapers/reentrant.html[Thread-safety and POSIX.1]</td>
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<pre style="margin: 0"> <span id="LC82" class="line"></span>
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<pre style="margin: 0"> <span id="LC83" class="line">All C files should be in plain US-ASCII encoding; do not use trigraphs.</span>
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<pre style="margin: 0"> <span id="LC84" class="line"></span>
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<pre style="margin: 0"> <span id="LC85" class="line">=== Other interfaces to be avoided ===</span>
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<pre style="margin: 0"> <span id="LC86" class="line"></span>
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<pre style="margin: 0"> <span id="LC87" class="line">Don't use gettimeofday(2). While this is nominally POSIX, it is</span>
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<pre style="margin: 0"> <span id="LC88" class="line">deprecated and may be removed in the future. Use clock_gettime(2)</span>
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<pre style="margin: 0"> <span id="LC89" class="line">instead.</span>
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<pre style="margin: 0"> <span id="LC90" class="line"></span>
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<pre style="margin: 0"> <span id="LC91" class="line">Use pselect(2) rather that select(2), to avoid introducing struct</span>
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<pre style="margin: 0"> <span id="LC92" class="line">timeval.</span>
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<pre style="margin: 0"> <span id="LC93" class="line"></span>
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<pre style="margin: 0"> <span id="LC94" class="line">In general, avoid introducing the type struct timeval into the code,</span>
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<pre style="margin: 0"> <span id="LC95" class="line">in favor of the higher-resolution struct timespec. Early on in</span>
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<pre style="margin: 0"> <span id="LC96" class="line">NTPsec's history we found a bug introduced by poor data management</span>
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<pre style="margin: 0"> <span id="LC97" class="line">where these two time representations bumped into each other; we don't</span>
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<pre style="margin: 0"> <span id="LC98" class="line">want that to happen again.</span>
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<pre style="margin: 0"> <span id="LC99" class="line"></span>
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<pre style="margin: 0"> <span id="LC100" class="line">=== Coding style and indentation ==</span>
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86
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<pre style="margin: 0"> <span id="LC101" class="line"></span>
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<pre style="margin: 0"> <span id="LC102" class="line">Dr. Dave Mills likes this code indented formatted in a consistent way.</span>
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