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gmain: Clarify thread safety of some common GSource functions

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See https://stackoverflow.com/q/58555626/2931197.

Signed-off-by: Philip Withnall <withnall@endlessm.com>
This commit is contained in:
Philip Withnall 2019-10-25 12:07:23 +01:00
parent d515a1e85a
commit ca4dace62b
1 changed files with 17 additions and 3 deletions
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18
glib/gmain.c
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@ -115,8 +115,10 @@
*
* To allow multiple independent sets of sources to be handled in
* different threads, each source is associated with a #GMainContext.
* A GMainContext can only be running in a single thread, but
* sources can be added to it and removed from it from other threads.
* A #GMainContext can only be running in a single thread, but
* sources can be added to it and removed from it from other threads. All
* functions which operate on a #GMainContext or a built-in #GSource are
* thread-safe.
*
* Each event source is assigned a priority. The default priority,
* #G_PRIORITY_DEFAULT, is 0. Values less than 0 denote higher priorities.
@ -1171,6 +1173,9 @@ g_source_attach_unlocked (GSource *source,
* Adds a #GSource to a @context so that it will be executed within
* that context. Remove it by calling g_source_destroy().
*
* This function is safe to call from any thread, regardless of which thread
* the @context is running in.
*
* Returns: the ID (greater than 0) for the source within the
* #GMainContext.
**/
@ -1267,6 +1272,9 @@ g_source_destroy_internal (GSource *source,
*
* This does not unref the #GSource: if you still hold a reference, use
* g_source_unref() to drop it.
*
* This function is safe to call from any thread, regardless of which thread
* the #GMainContext is running in.
*/
void
g_source_destroy (GSource *source)
@ -4832,6 +4840,8 @@ g_timeout_add_full (gint priority,
* context. You can do these steps manually if you need greater control or to
* use a custom main context.
*
* It is safe to call this function from any thread.
*
* The interval given is in terms of monotonic time, not wall clock
* time. See g_get_monotonic_time().
*
@ -4889,6 +4899,8 @@ g_timeout_add (guint32 interval,
* using g_source_attach(). You can do these steps manually if you need
* greater control.
*
* It is safe to call this function from any thread.
*
* The interval given is in terms of monotonic time, not wall clock
* time. See g_get_monotonic_time().
*
@ -4936,6 +4948,8 @@ g_timeout_add_seconds_full (gint priority,
* using g_source_attach(). You can do these steps manually if you need
* greater control. Also see g_timeout_add_seconds_full().
*
* It is safe to call this function from any thread.
*
* Note that the first call of the timer may not be precise for timeouts
* of one second. If you need finer precision and have such a timeout,
* you may want to use g_timeout_add() instead.