summaryrefslogtreecommitdiff
path: root/gobject/gbsearcharray.h
diff options
context:
space:
mode:
authorTim Janik <timj@gtk.org>2000-10-25 20:36:35 +0000
committerTim Janik <timj@src.gnome.org>2000-10-25 20:36:35 +0000
commitee23c09e83d06a0d131ebd234c132f1c3602c019 (patch)
treeb24f3cdd0758fed1a483abc645936ebae963b898 /gobject/gbsearcharray.h
parentb13320f78ba3b484a26b6430152b35aaac24ff10 (diff)
added newly added gobject/ headers.
Tue Oct 24 22:09:14 2000 Tim Janik <timj@gtk.org> * glib-object.h: added newly added gobject/ headers. * gmesage.c: print g_message() output to stderr instead of stdout. Wed Oct 25 20:27:02 2000 Tim Janik <timj@gtk.org> * gtype.c (g_type_free_instance): for the moment, freeing object structures will fill their memory portion with 0xAA. there's a FIXME there, remove this line at a later point. Tue Oct 24 23:10:26 2000 Tim Janik <timj@gtk.org> * glib-genmarshal.1: * glib-genmarshal.c: added publically installed marshaller generator. * gtype.h: added G_TYPE_INSTANCE_GET_INTERFACE() to retrive a certain interface VTable from instances. Mon Oct 23 08:28:15 2000 Tim Janik <timj@gtk.org> * gobject.[hc]: new functions for closure maintenance: (g_object_watch_closure): maintain validity of the object and the closure for objects that are used as data part of a closure. (g_cclosure_new_object): convenience function to create C closures that have an object as data argument. (g_closure_new_object): convenience function to create closures that have an object as data argument. * gclosure.[hc]: implementation of GClosure mechanism. a closure is basically an encapsulation of a callback function and its environment. ideally, most places supporting callback functions will simply take a GClosure* pointer and thus unify callback environments wrg destroy notification etc. GClosure provides destroy notifiers for arbitrary data pointers, reference counting, invalidation notification (it can be invalidated which is merely a deactivate state) and a marshallinbg abstraction. GCClosure is also provided in these files, they present a specialized GClosure implementation for C language callbacks. * genum.c: macro cleanups. * gboxed.[hc]: new files, for boxed type abstraction. (g_boxed_copy): copy a boxed structure (g_boxed_free): free a boxed structure (g_value_set_boxed): (g_value_get_boxed): standard GValue functions for boxed types (g_boxed_type_register_static): convenience function for easy introduction of new G_TYPE_BOXED derivatives. * gparam.[hc]: introduced g_param_type_register_static(), a short hand for creation of new GParamSpec derived types. * gtype.[hc]: many fixes, introduced ability to flag individual type nodes as ABSTRACT upon registration, added value_peek_pointer() to the value table to peek at GValue contents as a pointer for types that support this. fixed up GValue checks. * gvalue.[hc]: added g_value_fits_pointer() and g_value_get_as_pointer() to peek at the value contents as pointer. * *.[hc]: adaptions to type macro fixes and changes in the type registration API. * many const corrections over the place. Sat Oct 21 02:49:56 2000 Tim Janik <timj@gtk.org> * gtype.c (g_type_conforms_to): this function basically behaves like and is_a check, except that it _additionally_ features interfaces for instantiatable types. enforce this in the second branch as well (`type' conforms_to `type') even if `type' is not an interface type. Fri Oct 20 15:31:04 2000 Tim Janik <timj@gtk.org> * gvaluetypes.[hc]: added G_TYPE_POINTER implementation from jrb. * gtype.[hc]: * gobject.c: * gvaluetypes.c: added GTypeValueTable.value_peek_pointer and suitable implementations of this for G_TYPE_STRING, G_TYPE_OBJECT and G_TYPE_POINTER. Mon Aug 21 04:13:37 2000 Tim Janik <timj@gtk.org> * gbsearcharray.[hc]: long standing needed generic implementation of a binary searchable, sorted and dynamically sized array.
Diffstat (limited to 'gobject/gbsearcharray.h')
-rw-r--r--gobject/gbsearcharray.h134
1 files changed, 134 insertions, 0 deletions
diff --git a/gobject/gbsearcharray.h b/gobject/gbsearcharray.h
new file mode 100644
index 000000000..aadaac828
--- /dev/null
+++ b/gobject/gbsearcharray.h
@@ -0,0 +1,134 @@
+/* GObject - GLib Type, Object, Parameter and Signal Library
+ * Copyright (C) 2000 Tim Janik
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * 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.
+ *
+ * gbsearcharray.h: binary searchable sorted array maintenance
+ */
+#ifndef __G_BSEARCH_ARRAY_H__
+#define __G_BSEARCH_ARRAY_H__
+
+#include <gobject/gtype.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+
+/* helper macro to avoid signed overflow for value comparisions */
+#define G_BSEARCH_ARRAY_CMP(v1,v2) ((v1) < (v2) ? -1 : (v1) > (v2) ? 1 : 0)
+
+
+/* --- typedefs --- */
+typedef struct _GBSearchArray GBSearchArray;
+typedef gint (*GBSearchCompareFunc) (gconstpointer bsearch_node1,
+ gconstpointer bsearch_node2);
+typedef enum
+{
+ G_BSEARCH_ALIGN_POWER2 = 1 << 0,
+ G_BSEARCH_DEFER_SHRINK = 1 << 1
+} GBSearchFlags;
+
+
+/* --- structures --- */
+struct _GBSearchArray
+{
+ GBSearchCompareFunc cmp_func;
+ guint16 sizeof_node;
+ guint16 flags;
+ guint n_nodes;
+ gpointer nodes;
+};
+
+
+/* --- prototypes --- */
+gpointer g_bsearch_array_insert (GBSearchArray *barray,
+ gconstpointer key_node,
+ gboolean replace_existing);
+void g_bsearch_array_remove (GBSearchArray *barray,
+ gconstpointer key_node);
+void g_bsearch_array_remove_node (GBSearchArray *barray,
+ gpointer node_in_array);
+G_INLINE_FUNC
+gpointer g_bsearch_array_lookup (GBSearchArray *barray,
+ gconstpointer key_node);
+G_INLINE_FUNC
+gpointer g_bsearch_array_get_nth (GBSearchArray *barray,
+ guint n);
+
+
+/* --- implementation details --- */
+#if defined (G_CAN_INLINE) || defined (__G_BSEARCHARRAY_C__)
+G_INLINE_FUNC gpointer
+g_bsearch_array_lookup (GBSearchArray *barray,
+ gconstpointer key_node)
+{
+ if (barray->n_nodes > 0)
+ {
+ GBSearchCompareFunc cmp_func = barray->cmp_func;
+ gint sizeof_node = barray->sizeof_node;
+ guint n_nodes = barray->n_nodes;
+ guint8 *nodes = barray->nodes;
+
+ nodes -= sizeof_node;
+ do
+ {
+ guint8 *check;
+ guint i;
+ register gint cmp;
+
+ i = (n_nodes + 1) >> 1;
+ check = nodes + i * sizeof_node;
+ cmp = cmp_func (key_node, check);
+ if (cmp == 0)
+ return check;
+ else if (cmp > 0)
+ {
+ n_nodes -= i;
+ nodes = check;
+ }
+ else /* if (cmp < 0) */
+ n_nodes = i - 1;
+ }
+ while (n_nodes);
+ }
+
+ return NULL;
+}
+G_INLINE_FUNC gpointer
+g_bsearch_array_get_nth (GBSearchArray *barray,
+ guint n)
+{
+ if (n < barray->n_nodes)
+ {
+ guint8 *nodes = barray->nodes;
+
+ return nodes + n * barray->sizeof_node;
+ }
+ else
+ return NULL;
+}
+#endif /* G_CAN_INLINE && __G_BSEARCHARRAY_C__ */
+
+
+
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __G_BSEARCH_ARRAY_H__ */