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GOutputStream: Split _close_async for internal use

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Refactor g_output_stream_close_async() into itself and an internal
variant for potential use inside other operations (splice_async).
The internal version must be called between
g_output_stream_set_pending() and g_output_stream_clear_pending().

https://bugzilla.gnome.org/show_bug.cgi?id=691581
This commit is contained in:
Mike Ruprecht 2013-02-18 07:58:58 -06:00 committed by Dan Winship
parent 416ca8ad57
commit 87e5617a65
1 changed files with 70 additions and 10 deletions
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80
gio/goutputstream.c
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@ -99,6 +99,14 @@ static gboolean g_output_stream_real_close_finish (GOutputStream *s
static gboolean g_output_stream_internal_close (GOutputStream *stream,
GCancellable *cancellable,
GError **error);
static void g_output_stream_internal_close_async (GOutputStream *stream,
int io_priority,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer data);
static gboolean g_output_stream_internal_close_finish (GOutputStream *stream,
GAsyncResult *result,
GError **error);
static void
g_output_stream_dispose (GObject *object)
@ -1113,8 +1121,6 @@ async_ready_close_callback_wrapper (GObject *source_object,
error ? NULL : &error);
}
g_output_stream_clear_pending (stream);
if (error != NULL)
g_task_return_error (task, error);
else
@ -1150,6 +1156,28 @@ async_ready_close_flushed_callback_wrapper (GObject *source_object,
async_ready_close_callback_wrapper, task);
}
static void
real_close_async_cb (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
GOutputStream *stream = G_OUTPUT_STREAM (source_object);
GTask *task = user_data;
GError *error = NULL;
gboolean ret;
g_output_stream_clear_pending (stream);
ret = g_output_stream_internal_close_finish (stream, res, &error);
if (error != NULL)
g_task_return_error (task, error);
else
g_task_return_boolean (task, ret);
g_object_unref (task);
}
/**
* g_output_stream_close_async:
* @stream: A #GOutputStream.
@ -1176,7 +1204,6 @@ g_output_stream_close_async (GOutputStream *stream,
GAsyncReadyCallback callback,
gpointer user_data)
{
GOutputStreamClass *class;
GTask *task;
GError *error = NULL;
@ -1186,6 +1213,34 @@ g_output_stream_close_async (GOutputStream *stream,
g_task_set_source_tag (task, g_output_stream_close_async);
g_task_set_priority (task, io_priority);
if (!g_output_stream_set_pending (stream, &error))
{
g_task_return_error (task, error);
g_object_unref (task);
return;
}
g_output_stream_internal_close_async (stream, io_priority, cancellable,
real_close_async_cb, task);
}
/* Must always be called inside
* g_output_stream_set_pending()/g_output_stream_clear_pending().
*/
void
g_output_stream_internal_close_async (GOutputStream *stream,
int io_priority,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
GOutputStreamClass *class;
GTask *task;
task = g_task_new (stream, cancellable, callback, user_data);
g_task_set_source_tag (task, g_output_stream_internal_close_async);
g_task_set_priority (task, io_priority);
if (stream->priv->closed)
{
g_task_return_boolean (task, TRUE);
@ -1193,13 +1248,6 @@ g_output_stream_close_async (GOutputStream *stream,
return;
}
if (!g_output_stream_set_pending (stream, &error))
{
g_task_return_error (task, error);
g_object_unref (task);
return;
}
class = G_OUTPUT_STREAM_GET_CLASS (stream);
stream->priv->closing = TRUE;
@ -1221,6 +1269,18 @@ g_output_stream_close_async (GOutputStream *stream,
}
}
static gboolean
g_output_stream_internal_close_finish (GOutputStream *stream,
GAsyncResult *result,
GError **error)
{
g_return_val_if_fail (G_IS_OUTPUT_STREAM (stream), FALSE);
g_return_val_if_fail (g_task_is_valid (result, stream), FALSE);
g_return_val_if_fail (g_async_result_is_tagged (result, g_output_stream_internal_close_async), FALSE);
return g_task_propagate_boolean (G_TASK (result), error);
}
/**
* g_output_stream_close_finish:
* @stream: a #GOutputStream.