X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=gio%2Fginitable.c;h=23d6069f3b3efd5a41a1d4c531cd1f1fad549ea8;hb=c8d10470939847069b1a346d4c44f2adde3469f6;hp=29b60ddceac8cd59d09f39a73c675058d8d10a2a;hpb=6ea86cc57f1b8b8c7acc4e08ece8baef5f28a53a;p=platform%2Fupstream%2Fglib.git diff --git a/gio/ginitable.c b/gio/ginitable.c index 29b60dd..23d6069 100644 --- a/gio/ginitable.c +++ b/gio/ginitable.c @@ -13,9 +13,7 @@ * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General - * Public License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place, Suite 330, - * Boston, MA 02111-1307, USA. + * Public License along with this library; if not, see . * * Author: Alexander Larsson */ @@ -24,7 +22,6 @@ #include "ginitable.h" #include "glibintl.h" -#include "gioalias.h" /** * SECTION:ginitable @@ -33,65 +30,50 @@ * @see_also: #GAsyncInitable * * #GInitable is implemented by objects that can fail during - * initialization. If an object implements this interface the - * g_initable_init() function must be called as the first thing - * after construction. If g_initable_init() is not called, or if - * it returns an error, all further operations on the object - * should fail, generally with a %G_IO_ERROR_NOT_INITIALIZED error. + * initialization. If an object implements this interface then + * it must be initialized as the first thing after construction, + * either via g_initable_init() or g_async_initable_init_async() + * (the latter is only available if it also implements #GAsyncInitable). + * + * If the object is not initialized, or initialization returns with an + * error, then all operations on the object except g_object_ref() and + * g_object_unref() are considered to be invalid, and have undefined + * behaviour. They will often fail with g_critical() or g_warning(), but + * this must not be relied on. * * Users of objects implementing this are not intended to use * the interface method directly, instead it will be used automatically * in various ways. For C applications you generally just call * g_initable_new() directly, or indirectly via a foo_thing_new() wrapper. * This will call g_initable_init() under the cover, returning %NULL and - * setting a %GError on failure. + * setting a #GError on failure (at which point the instance is + * unreferenced). * * For bindings in languages where the native constructor supports * exceptions the binding could check for objects implemention %GInitable * during normal construction and automatically initialize them, throwing * an exception on failure. - **/ - -GType -g_initable_get_type (void) -{ - static volatile gsize g_define_type_id__volatile = 0; + */ - if (g_once_init_enter (&g_define_type_id__volatile)) - { - const GTypeInfo initable_info = - { - sizeof (GInitableIface), /* class_size */ - NULL, /* base_init */ - NULL, /* base_finalize */ - NULL, - NULL, /* class_finalize */ - NULL, /* class_data */ - 0, - 0, /* n_preallocs */ - NULL - }; - GType g_define_type_id = - g_type_register_static (G_TYPE_INTERFACE, I_("GInitable"), - &initable_info, 0); - - g_type_interface_add_prerequisite (g_define_type_id, G_TYPE_OBJECT); - - g_once_init_leave (&g_define_type_id__volatile, g_define_type_id); - } +typedef GInitableIface GInitableInterface; +G_DEFINE_INTERFACE (GInitable, g_initable, G_TYPE_OBJECT) - return g_define_type_id__volatile; +static void +g_initable_default_init (GInitableInterface *iface) +{ } /** * g_initable_init: * @initable: a #GInitable. * @cancellable: optional #GCancellable object, %NULL to ignore. - * @error: a #GError location to store the error occuring, or %NULL to + * @error: a #GError location to store the error occurring, or %NULL to * ignore. * - * Initializes the object implementing the interface. This must be - * done before any real use of the object after initial construction. + * Initializes the object implementing the interface. + * + * The object must be initialized before any real use after initial + * construction, either with this function or g_async_initable_init_async(). * * Implementations may also support cancellation. If @cancellable is not %NULL, * then initialization can be cancelled by triggering the cancellable object @@ -100,22 +82,22 @@ g_initable_get_type (void) * the object doesn't support cancellable initialization the error * %G_IO_ERROR_NOT_SUPPORTED will be returned. * - * If this function is not called, or returns with an error then all - * operations on the object should fail, generally returning the - * error %G_IO_ERROR_NOT_INITIALIZED. + * If the object is not initialized, or initialization returns with an + * error, then all operations on the object except g_object_ref() and + * g_object_unref() are considered to be invalid, and have undefined + * behaviour. See the [introduction][ginitable] for more details. * * Implementations of this method must be idempotent, i.e. multiple calls * to this function with the same argument should return the same results. * Only the first call initializes the object, further calls return the result - * of the first call. This is so that its safe to implement the singleton + * of the first call. This is so that it's safe to implement the singleton * pattern in the GObject constructor function. * - * Returns: %TRUE if successful. If an error - * has occurred, this function will return %FALSE and set @error - * appropriately if present. + * Returns: %TRUE if successful. If an error has occurred, this function will + * return %FALSE and set @error appropriately if present. * * Since: 2.22 - **/ + */ gboolean g_initable_init (GInitable *initable, GCancellable *cancellable, @@ -134,20 +116,22 @@ g_initable_init (GInitable *initable, * g_initable_new: * @object_type: a #GType supporting #GInitable. * @cancellable: optional #GCancellable object, %NULL to ignore. - * @error: a #GError location to store the error occuring, or %NULL to + * @error: a #GError location to store the error occurring, or %NULL to * ignore. - * @first_property_name: the name of the first property, or %NULL if no properties + * @first_property_name: (allow-none): the name of the first property, or %NULL if no + * properties * @...: the value if the first property, followed by and other property * value pairs, and ended by %NULL. * - * Helper function for constructing #GInitiable object. This is + * Helper function for constructing #GInitable object. This is * similar to g_object_new() but also initializes the object * and returns %NULL, setting an error on failure. * - * Return value: a newly allocated #GObject, or %NULL on error + * Returns: (type GObject.Object) (transfer full): a newly allocated + * #GObject, or %NULL on error * * Since: 2.22 - **/ + */ gpointer g_initable_new (GType object_type, GCancellable *cancellable, @@ -171,19 +155,20 @@ g_initable_new (GType object_type, * g_initable_newv: * @object_type: a #GType supporting #GInitable. * @n_parameters: the number of parameters in @parameters - * @parameters: the parameters to use to construct the object + * @parameters: (array length=n_parameters): the parameters to use to construct the object * @cancellable: optional #GCancellable object, %NULL to ignore. - * @error: a #GError location to store the error occuring, or %NULL to - * ignore. + * @error: a #GError location to store the error occurring, or %NULL to + * ignore. * - * Helper function for constructing #GInitiable object. This is + * Helper function for constructing #GInitable object. This is * similar to g_object_newv() but also initializes the object * and returns %NULL, setting an error on failure. * - * Return value: a newly allocated #GObject, or %NULL on error + * Returns: (type GObject.Object) (transfer full): a newly allocated + * #GObject, or %NULL on error * * Since: 2.22 - **/ + */ gpointer g_initable_newv (GType object_type, guint n_parameters, @@ -213,17 +198,18 @@ g_initable_newv (GType object_type, * the value, and other property value pairs, and ended by %NULL. * @var_args: The var args list generated from @first_property_name. * @cancellable: optional #GCancellable object, %NULL to ignore. - * @error: a #GError location to store the error occuring, or %NULL to - * ignore. + * @error: a #GError location to store the error occurring, or %NULL to + * ignore. * - * Helper function for constructing #GInitiable object. This is + * Helper function for constructing #GInitable object. This is * similar to g_object_new_valist() but also initializes the object * and returns %NULL, setting an error on failure. * - * Return value: a newly allocated #GObject, or %NULL on error + * Returns: (type GObject.Object) (transfer full): a newly allocated + * #GObject, or %NULL on error * * Since: 2.22 - **/ + */ GObject* g_initable_new_valist (GType object_type, const gchar *first_property_name, @@ -247,6 +233,3 @@ g_initable_new_valist (GType object_type, return obj; } - -#define __G_INITABLE_C__ -#include "gioaliasdef.c"