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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [GTK] Test fast/events/message-port-postMessage-recursive.html times out"
href="https://bugs.webkit.org/show_bug.cgi?id=168570">168570</a>
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<th>Summary</th>
<td>[GTK] Test fast/events/message-port-postMessage-recursive.html times out
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>WebKit Local Build
</td>
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<th>Hardware</th>
<td>Unspecified
</td>
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<th>OS</th>
<td>Unspecified
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Keywords</th>
<td>Gtk, LayoutTestFailure
</td>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P2
</td>
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<th>Component</th>
<td>WebKit Gtk
</td>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>cgarcia@igalia.com
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<th>CC</th>
<td>bugs-noreply@webkitgtk.org
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<pre>This has recently been added and the patch is good. It's just revealing a problem with our timers. The test is posting a message recursively, and also starts a timeout timer to finish the test. The timeout timer is never fired for us, because WebCore timers have lower priority than the one used by postMessage. ScriptExecutionContext uses Document::postTask, that uses scheduleOnMainThread, that uses RunLoop::dispatch(). We are not setting any priority for the timer used by RunLoop::dispatch, so it's using the default. RunLoop::dispatch is normally used to schedule tasks between threads, or just to ensure something is run in a different run loop iteration, but in general nothing urgent as a graphics redraw or something like that. It's quite common to use g_idle_add to schedule tasks between threads, so I think it makes sense to use G_PRIORITY_DEFAULT_IDLE for the RunLoop timer.</pre>
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