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man: Document return value of event source prepare callback (#4834)

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Martin Ejdestig 2016-12-05 23:42:41 +01:00 committed by Lennart Poettering
parent c9fd987279
commit 95977da98c
1 changed files with 5 additions and 4 deletions
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9
man/sd_event_source_set_prepare.xml
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@ -76,10 +76,11 @@
specified as <parameter>callback</parameter> will be invoked
immediately before the event loop goes to sleep to wait for
incoming events. It is invoked with the user data pointer passed
when the event source was created. The callback function may be
used to reconfigure the precise events to wait for. If the
<parameter>callback</parameter> parameter is passed as NULL the
callback function is reset. </para>
when the event source was created. The event source will be disabled
if the callback function returns a negative error code. The callback
function may be used to reconfigure the precise events to wait for.
If the <parameter>callback</parameter> parameter is passed as NULL
the callback function is reset. </para>
<para>Event source objects have no preparation callback associated
when they are first created with calls such as