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gmain: Document that g_steal_fd() preserves errno

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This is useful when writing similarly low-level code, and was always true
as implemented here; let's document it so that other codebases can rely
on it.

Signed-off-by: Simon McVittie <smcv@collabora.com>
This commit is contained in:
Simon McVittie 2023-05-30 16:02:16 +01:00
parent 32ec11e51d
commit c97348428f
1 changed files with 2 additions and 0 deletions
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glib/gmain.c
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@ -6608,6 +6608,8 @@ g_get_worker_context (void)
* [`signal-safety(7)`](man:signal-safety(7))), making it safe to call from a * [`signal-safety(7)`](man:signal-safety(7))), making it safe to call from a
* signal handler or a #GSpawnChildSetupFunc. * signal handler or a #GSpawnChildSetupFunc.
* *
* This function preserves the value of `errno`.
*
* Returns: the value that @fd_ptr previously had * Returns: the value that @fd_ptr previously had
* Since: 2.70 * Since: 2.70
*/ */