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  • Committer: Sean Davis
  • Date: 2018-02-18 14:40:54 UTC
  • Revision ID: smd.seandavis@gmail.com-20180218144054-14gvdihlz5u1mhpw
Add a note so future maintainers (myself included) know what's going on with the timestamp comparison

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src/greeterbackground.c
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    if (priv->active_monitor_change_in_progress)
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        return;
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    /* Prevents infinite signal emmission between two monitors (LP: #1410406, #1509780)
 
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     * There are some rare scenarios when using multiple monitors that cause the greeter
 
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     * to switch back and forth between the monitors indefinitely. By comparing the
 
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     * timestamp at this precision (1/10th of a second), this should no longer be
 
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     * possible.
 
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     */
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    timestamp = floor(g_get_monotonic_time () * 0.00001);
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    if (timestamp == priv->active_monitor_change_last_timestamp)
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        return;