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gtask: Add g_task_return_prefixed_error()

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An equivalent to g_propagate_prefixed_error, but for errors sent though
GTask, allowing tasks to easily provide extra context to callers.
This commit is contained in:
Zander Brown
2023-10-31 03:49:28 +00:00
parent 1969608db5
commit d33752b5ce
3 changed files with 77 additions and 0 deletions
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23
gio/tests/task.c
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@@ -2112,6 +2112,28 @@ test_return_value (void)
g_assert_null (object);
}
static void
test_return_prefixed_error (void)
{
GTask *task;
GError *original_error = NULL;
GError *error = NULL;
g_set_error (&original_error, G_IO_ERROR, G_IO_ERROR_UNKNOWN, "oh no!");
task = g_task_new (NULL, NULL, NULL, NULL);
g_task_return_prefixed_error (task, original_error, "task %s: ", "failed");
wait_for_completed_notification (task);
g_assert_null (g_task_propagate_pointer (task, &error));
g_assert_error (error, G_IO_ERROR, G_IO_ERROR_UNKNOWN);
g_assert_cmpstr (error->message, ==, "task failed: oh no!");
g_assert_finalize_object (task);
g_clear_error (&error);
}
/* test_object_keepalive: GTask takes a ref on its source object */
static GObject *keepalive_object;
@@ -2525,6 +2547,7 @@ main (int argc, char **argv)
g_test_add_func ("/gtask/return-on-cancel-atomic", test_return_on_cancel_atomic);
g_test_add_func ("/gtask/return-pointer", test_return_pointer);
g_test_add_func ("/gtask/return-value", test_return_value);
g_test_add_func ("/gtask/return-prefixed-error", test_return_prefixed_error);
g_test_add_func ("/gtask/object-keepalive", test_object_keepalive);
g_test_add_func ("/gtask/legacy-error", test_legacy_error);
g_test_add_func ("/gtask/return/in-idle/error-first", test_return_in_idle_error_first);