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This is an automatically generated e-mail. To reply, visit:
<a href="https://git.reviewboard.kde.org/r/112294/">https://git.reviewboard.kde.org/r/112294/</a>
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<p style="margin-top: 0;">On May 26th, 2014, 2:50 p.m. UTC, <b>Stefan Brüns</b> wrote:</p>
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<a href="https://git.reviewboard.kde.org/r/112294/diff/7/?file=274916#file274916line1430" style="color: black; font-weight: bold; text-decoration: underline;">kdm/backend/dm.c</a>
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(Diff revision 7)
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">strcmp</span><span class="p">(</span><span class="o">&</span><span class="n">at</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">seat</span><span class="p">))</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Hm, I prefer this notation, in particular as this is the same as for std::string (guaranteed since C++03, working for all versions of C++):
std::string foo(100, '\0');
char* buf = &foo[10];
vs
char foo[100] = { '\0' };
char *buf &foo[10];
This is correct, as arrays (both C and C++) are guaranteed to be contiguous, and thus (&foo[10]) == (foo + 10).</pre>
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<p>On May 28th, 2014, 8:37 a.m. UTC, <b>Oswald Buddenhagen</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">i know how c works. ;)
it still looks wrong from the mathematical pov, because you actually want a slice, kinda &foo[10..inf]. this is better expressed by writing something that looks more like just the starting offset, i.e., foo + 10. it also happens to have less meta char noise.
and yes, this is a matter of preference. my code, my rules. :P
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Yeah, plain C sucks. Changed to pointer plus offset.</pre>
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<p style="margin-top: 0;">On May 26th, 2014, 2:50 p.m. UTC, <b>Stefan Brüns</b> wrote:</p>
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<a href="https://git.reviewboard.kde.org/r/112294/diff/7/?file=274916#file274916line1510" style="color: black; font-weight: bold; text-decoration: underline;">kdm/backend/dm.c</a>
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(Diff revision 7)
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">forEachDisplay</span><span class="p">(</span><span class="n">unmarkDisplay</span><span class="p">);</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Nope. After systemdHandleChange() we will repeat the while(...) loop, calling:
startDisplays();
which calls:
forEachDisplay(checkDisplayStatus);
which does:
if ((d->displayType & d_origin) == dFromFile && !d->stillThere)
stopDisplay(d);</pre>
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<p>On May 28th, 2014, 8:37 a.m. UTC, <b>Oswald Buddenhagen</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">good point. but this means that we actually may not re-use this variable, because it will interfere, no matter what (your code would inadvertently re-animate a just-died display, i think).
i suggest you keep the mechanism, but use a new variable "activated" for it.</pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">this is d->seatRemoved now.</pre>
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<p>- Stefan</p>
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<p>On May 26th, 2014, 12:06 a.m. UTC, Stefan Brüns wrote:</p>
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<div>Review request for kde-workspace and Oswald Buddenhagen.</div>
<div>By Stefan Brüns.</div>
<p style="color: grey;"><i>Updated May 26, 2014, 12:06 a.m.</i></p>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
kde-workspace
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">This patch implements dynamic multiseat in KDM. It follows the description in:
http://www.freedesktop.org/wiki/Software/systemd/writing-display-managers/
In case systemd is no found at compile time, nothing changes. If logind is not running, nothing changes. If no additional seats have been configured (some Plugable USB-GPUs are automatically added as additional seats), nothing changes.
In case there are additional seats beyond seat0, a reserved display is promoted to a local static one (and demoted if the seat is removed) and a new X-Server/greeter is spawned.
The code has been tested extensively, with a combination of [Radeon dedicated GPU|Intel iGPU], [Intel iGPU|Displaylink USB GPU] and others. For history of this patch, see https://bugzilla.redhat.com/show_bug.cgi?id=884271 and https://bugzilla.redhat.com/show_bug.cgi?id=975079</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Single seat system, several multiseat systems</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>cmake/modules/CMakeLists.txt <span style="color: grey">(117b3a5)</span></li>
<li>kdm/ConfigureChecks.cmake <span style="color: grey">(b61fd90)</span></li>
<li>kdm/backend/CMakeLists.txt <span style="color: grey">(25f383f)</span></li>
<li>kdm/backend/client.c <span style="color: grey">(a2d06c2)</span></li>
<li>kdm/backend/dm.h <span style="color: grey">(b2f8c61)</span></li>
<li>kdm/backend/dm.c <span style="color: grey">(77a2ef7)</span></li>
<li>kdm/backend/dpylist.c <span style="color: grey">(b650c2f)</span></li>
<li>kdm/backend/resource.c <span style="color: grey">(38a8c70)</span></li>
<li>kdm/backend/server.c <span style="color: grey">(d8dd6f3)</span></li>
<li>kdm/backend/session.c <span style="color: grey">(0e7901c)</span></li>
<li>kdm/config-kdm.h.cmake <span style="color: grey">(3e8912d)</span></li>
<li>kdm/kfrontend/kdm_config.c <span style="color: grey">(368c8d1)</span></li>
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<p><a href="https://git.reviewboard.kde.org/r/112294/diff/" style="margin-left: 3em;">View Diff</a></p>
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