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giochannel: Clarify type of GSource callback in documentation

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This should clarify questions like
https://stackoverflow.com/q/57807738/2931197.

Signed-off-by: Philip Withnall <withnall@endlessm.com>
This commit is contained in:
Philip Withnall 2019-09-06 10:49:39 +01:00
parent f7eed7eabd
commit f02c6eb514
1 changed files with 3 additions and 0 deletions
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glib/giochannel.c
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@ -596,6 +596,9 @@ g_io_channel_purge (GIOChannel *channel)
* given @channel. For example, if condition is #G_IO_IN, the source will
* be dispatched when there's data available for reading.
*
* The callback function invoked by the #GSource should be added with
* g_source_set_callback(), but it has type #GIOFunc (not #GSourceFunc).
*
* g_io_add_watch() is a simpler interface to this same functionality, for
* the case where you want to add the source to the default main loop context
* at the default priority.