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-rw-r--r--app/core/gimpasyncset.c348
1 files changed, 348 insertions, 0 deletions
diff --git a/app/core/gimpasyncset.c b/app/core/gimpasyncset.c
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+++ b/app/core/gimpasyncset.c
@@ -0,0 +1,348 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpasyncset.c
+ * Copyright (C) 2018 Ell
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <gegl.h>
+
+#include "core-types.h"
+
+#include "gimpasync.h"
+#include "gimpasyncset.h"
+#include "gimpcancelable.h"
+#include "gimpwaitable.h"
+
+
+enum
+{
+ PROP_0,
+ PROP_EMPTY
+};
+
+
+struct _GimpAsyncSetPrivate
+{
+ GHashTable *asyncs;
+};
+
+
+/* local function prototypes */
+
+static void gimp_async_set_waitable_iface_init (GimpWaitableInterface *iface);
+
+static void gimp_async_set_cancelable_iface_init (GimpCancelableInterface *iface);
+
+static void gimp_async_set_dispose (GObject *object);
+static void gimp_async_set_finalize (GObject *object);
+static void gimp_async_set_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gimp_async_set_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+static void gimp_async_set_wait (GimpWaitable *waitable);
+static gboolean gimp_async_set_try_wait (GimpWaitable *waitable);
+static gboolean gimp_async_set_wait_until (GimpWaitable *waitable,
+ gint64 end_time);
+
+static void gimp_async_set_cancel (GimpCancelable *cancelable);
+
+static void gimp_async_set_async_callback (GimpAsync *async,
+ GimpAsyncSet *async_set);
+
+
+G_DEFINE_TYPE_WITH_CODE (GimpAsyncSet, gimp_async_set, G_TYPE_OBJECT,
+ G_ADD_PRIVATE (GimpAsyncSet)
+ G_IMPLEMENT_INTERFACE (GIMP_TYPE_WAITABLE,
+ gimp_async_set_waitable_iface_init)
+ G_IMPLEMENT_INTERFACE (GIMP_TYPE_CANCELABLE,
+ gimp_async_set_cancelable_iface_init))
+
+#define parent_class gimp_async_set_parent_class
+
+
+/* private functions */
+
+
+static void
+gimp_async_set_class_init (GimpAsyncSetClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->dispose = gimp_async_set_dispose;
+ object_class->finalize = gimp_async_set_finalize;
+ object_class->set_property = gimp_async_set_set_property;
+ object_class->get_property = gimp_async_set_get_property;
+
+ g_object_class_install_property (object_class, PROP_EMPTY,
+ g_param_spec_boolean ("empty",
+ NULL, NULL,
+ FALSE,
+ GIMP_PARAM_READABLE));
+}
+
+static void
+gimp_async_set_waitable_iface_init (GimpWaitableInterface *iface)
+{
+ iface->wait = gimp_async_set_wait;
+ iface->try_wait = gimp_async_set_try_wait;
+ iface->wait_until = gimp_async_set_wait_until;
+}
+
+static void
+gimp_async_set_cancelable_iface_init (GimpCancelableInterface *iface)
+{
+ iface->cancel = gimp_async_set_cancel;
+}
+
+static void
+gimp_async_set_init (GimpAsyncSet *async_set)
+{
+ async_set->priv = gimp_async_set_get_instance_private (async_set);
+
+ async_set->priv->asyncs = g_hash_table_new (NULL, NULL);
+}
+
+static void
+gimp_async_set_dispose (GObject *object)
+{
+ GimpAsyncSet *async_set = GIMP_ASYNC_SET (object);
+
+ gimp_async_set_clear (async_set);
+
+ G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+static void
+gimp_async_set_finalize (GObject *object)
+{
+ GimpAsyncSet *async_set = GIMP_ASYNC_SET (object);
+
+ g_hash_table_unref (async_set->priv->asyncs);
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gimp_async_set_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ switch (property_id)
+ {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_async_set_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GimpAsyncSet *async_set = GIMP_ASYNC_SET (object);
+
+ switch (property_id)
+ {
+ case PROP_EMPTY:
+ g_value_set_boolean (value, gimp_async_set_is_empty (async_set));
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_async_set_wait (GimpWaitable *waitable)
+{
+ GimpAsyncSet *async_set = GIMP_ASYNC_SET (waitable);
+
+ while (! gimp_async_set_is_empty (async_set))
+ {
+ GimpAsync *async;
+ GHashTableIter iter;
+
+ g_hash_table_iter_init (&iter, async_set->priv->asyncs);
+
+ g_hash_table_iter_next (&iter, (gpointer *) &async, NULL);
+
+ gimp_waitable_wait (GIMP_WAITABLE (async));
+ }
+}
+
+static gboolean
+gimp_async_set_try_wait (GimpWaitable *waitable)
+{
+ GimpAsyncSet *async_set = GIMP_ASYNC_SET (waitable);
+
+ while (! gimp_async_set_is_empty (async_set))
+ {
+ GimpAsync *async;
+ GHashTableIter iter;
+
+ g_hash_table_iter_init (&iter, async_set->priv->asyncs);
+
+ g_hash_table_iter_next (&iter, (gpointer *) &async, NULL);
+
+ if (! gimp_waitable_try_wait (GIMP_WAITABLE (async)))
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static gboolean
+gimp_async_set_wait_until (GimpWaitable *waitable,
+ gint64 end_time)
+{
+ GimpAsyncSet *async_set = GIMP_ASYNC_SET (waitable);
+
+ while (! gimp_async_set_is_empty (async_set))
+ {
+ GimpAsync *async;
+ GHashTableIter iter;
+
+ g_hash_table_iter_init (&iter, async_set->priv->asyncs);
+
+ g_hash_table_iter_next (&iter, (gpointer *) &async, NULL);
+
+ if (! gimp_waitable_wait_until (GIMP_WAITABLE (async), end_time))
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static void
+gimp_async_set_cancel (GimpCancelable *cancelable)
+{
+ GimpAsyncSet *async_set = GIMP_ASYNC_SET (cancelable);
+ GList *list;
+
+ list = g_hash_table_get_keys (async_set->priv->asyncs);
+
+ g_list_foreach (list, (GFunc) g_object_ref, NULL);
+
+ g_list_foreach (list, (GFunc) gimp_cancelable_cancel, NULL);
+
+ g_list_free_full (list, g_object_unref);
+}
+
+static void
+gimp_async_set_async_callback (GimpAsync *async,
+ GimpAsyncSet *async_set)
+{
+ g_hash_table_remove (async_set->priv->asyncs, async);
+
+ if (gimp_async_set_is_empty (async_set))
+ g_object_notify (G_OBJECT (async_set), "empty");
+}
+
+
+/* public functions */
+
+
+GimpAsyncSet *
+gimp_async_set_new (void)
+{
+ return g_object_new (GIMP_TYPE_ASYNC_SET,
+ NULL);
+}
+
+void
+gimp_async_set_add (GimpAsyncSet *async_set,
+ GimpAsync *async)
+{
+ g_return_if_fail (GIMP_IS_ASYNC_SET (async_set));
+ g_return_if_fail (GIMP_IS_ASYNC (async));
+
+ if (g_hash_table_add (async_set->priv->asyncs, async))
+ {
+ if (g_hash_table_size (async_set->priv->asyncs) == 1)
+ g_object_notify (G_OBJECT (async_set), "empty");
+
+ gimp_async_add_callback (
+ async,
+ (GimpAsyncCallback) gimp_async_set_async_callback,
+ async_set);
+ }
+}
+
+void
+gimp_async_set_remove (GimpAsyncSet *async_set,
+ GimpAsync *async)
+{
+ g_return_if_fail (GIMP_IS_ASYNC_SET (async_set));
+ g_return_if_fail (GIMP_IS_ASYNC (async));
+
+ if (g_hash_table_remove (async_set->priv->asyncs, async))
+ {
+ gimp_async_remove_callback (
+ async,
+ (GimpAsyncCallback) gimp_async_set_async_callback,
+ async_set);
+
+ if (g_hash_table_size (async_set->priv->asyncs) == 0)
+ g_object_notify (G_OBJECT (async_set), "empty");
+ }
+}
+
+void
+gimp_async_set_clear (GimpAsyncSet *async_set)
+{
+ GimpAsync *async;
+ GHashTableIter iter;
+
+ g_return_if_fail (GIMP_IS_ASYNC_SET (async_set));
+
+ if (gimp_async_set_is_empty (async_set))
+ return;
+
+ g_hash_table_iter_init (&iter, async_set->priv->asyncs);
+
+ while (g_hash_table_iter_next (&iter, (gpointer *) &async, NULL))
+ {
+ gimp_async_remove_callback (
+ async,
+ (GimpAsyncCallback) gimp_async_set_async_callback,
+ async_set);
+ }
+
+ g_hash_table_remove_all (async_set->priv->asyncs);
+
+ g_object_notify (G_OBJECT (async_set), "empty");
+}
+
+gboolean
+gimp_async_set_is_empty (GimpAsyncSet *async_set)
+{
+ g_return_val_if_fail (GIMP_IS_ASYNC_SET (async_set), FALSE);
+
+ return g_hash_table_size (async_set->priv->asyncs) == 0;
+}
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