mirror of
https://gitlab.gnome.org/GNOME/glib.git
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83c45024e3
Sun Nov 5 05:22:55 2000 Tim Janik <timj@gtk.org>
* gsignal.c:
fixed a bag full of subtle bugs of immensive screw-up potential in
handlers_find(), luckily no one found out about them yet ;)
fixed signal_handlers_foreach_matched_R() so it operates on an
initial handler list snapshot provided by handlers_find() to work
around general reentrancy problems and to avoid multiple callback()
invocations on the same handlers.
this code is now officially 80% bug free (10% remaining for interface
types, and 10% remaining for destroyed signals ;)
Sat Nov 4 02:01:33 2000 Tim Janik <timj@gtk.org>
* gsignal.c (_g_signals_destroy): valid signal nodes start out at 1.
* gtypeplugin.[hc]: new files holding a GTypePlugin interface
implementation that provides the API required by GType to deal with
dynamically loadable types.
* gtype.[hc]: displace any GTypePlugin business to gtypeplugin.h.
181 lines
5.6 KiB
C
181 lines
5.6 KiB
C
/* GObject - GLib Type, Object, Parameter and Signal Library
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* Copyright (C) 2000 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __G_SIGNAL_H__
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#define __G_SIGNAL_H__
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#include <gobject/gclosure.h>
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#include <gobject/gvalue.h>
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#include <gobject/gparam.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/* --- typedefs --- */
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typedef struct _GSignalQuery GSignalQuery;
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typedef struct _GSignalInvocationHint GSignalInvocationHint;
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typedef GClosureMarshal GSignalCMarshaller;
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typedef gboolean (*GSignalEmissionHook) (GSignalInvocationHint *ihint,
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guint n_param_values,
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const GValue *param_values);
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typedef gboolean (*GSignalAccumulator) (GSignalInvocationHint *ihint,
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GValue *return_accu,
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const GValue *return_value);
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/* --- run & match types --- */
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typedef enum
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{
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G_SIGNAL_RUN_FIRST = 1 << 0,
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G_SIGNAL_RUN_LAST = 1 << 1,
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G_SIGNAL_RUN_CLEANUP = 1 << 2,
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G_SIGNAL_NO_RECURSE = 1 << 3,
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G_SIGNAL_DETAILED = 1 << 4,
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G_SIGNAL_ACTION = 1 << 5,
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G_SIGNAL_NO_HOOKS = 1 << 6
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#define G_SIGNAL_FLAGS_MASK 0x7f
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} GSignalFlags;
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typedef enum
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{
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G_SIGNAL_MATCH_ID = 1 << 0,
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G_SIGNAL_MATCH_DETAIL = 1 << 1,
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G_SIGNAL_MATCH_CLOSURE = 1 << 2,
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G_SIGNAL_MATCH_FUNC = 1 << 3,
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G_SIGNAL_MATCH_DATA = 1 << 4,
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G_SIGNAL_MATCH_UNBLOCKED = 1 << 5
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#define G_SIGNAL_MATCH_MASK 0x3f
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} GSignalMatchType;
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/* --- signal information --- */
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struct _GSignalInvocationHint
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{
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guint signal_id;
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GQuark detail;
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GSignalFlags run_type;
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};
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struct _GSignalQuery
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{
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guint signal_id;
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const gchar *signal_name;
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GType itype;
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GSignalFlags signal_flags;
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GType return_type;
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guint n_params;
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const GType *param_types;
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};
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/* --- signals --- */
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guint g_signal_newv (const gchar *signal_name,
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GType itype,
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GSignalFlags signal_flags,
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GClosure *class_closure,
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GSignalAccumulator accumulator,
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GSignalCMarshaller c_marshaller,
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GType return_type,
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guint n_params,
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GType *param_types);
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void g_signal_emitv (const GValue *instance_and_params,
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guint signal_id,
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GQuark detail,
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GValue *return_value);
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guint g_signal_lookup (const gchar *name,
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GType itype);
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gchar* g_signal_name (guint signal_id);
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void g_signal_query (guint signal_id,
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GSignalQuery *query);
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guint* g_signal_list_ids (GType itype,
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guint *n_ids);
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/* --- signal emissions --- */
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void g_signal_stop_emission (gpointer instance,
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guint signal_id,
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GQuark detail);
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guint g_signal_add_emission_hook_full (guint signal_id,
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GClosure *closure);
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void g_signal_remove_emission_hook (guint signal_id,
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guint hook_id);
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/* --- signal handlers --- */
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gboolean g_signal_has_handler_pending (gpointer instance,
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guint signal_id,
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GQuark detail,
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gboolean may_be_blocked);
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guint g_signal_connect_closure_by_id (gpointer instance,
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guint signal_id,
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GQuark detail,
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GClosure *closure,
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gboolean after);
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void g_signal_handler_block (gpointer instance,
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guint handler_id);
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void g_signal_handler_unblock (gpointer instance,
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guint handler_id);
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void g_signal_handler_disconnect (gpointer instance,
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guint handler_id);
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guint g_signal_handler_find (gpointer instance,
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GSignalMatchType mask,
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guint signal_id,
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GQuark detail,
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GClosure *closure,
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gpointer func,
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gpointer data);
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guint g_signal_handlers_block_matched (gpointer instance,
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GSignalMatchType mask,
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guint signal_id,
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GQuark detail,
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GClosure *closure,
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gpointer func,
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gpointer data);
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guint g_signal_handlers_unblock_matched (gpointer instance,
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GSignalMatchType mask,
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guint signal_id,
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GQuark detail,
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GClosure *closure,
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gpointer func,
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gpointer data);
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guint g_signal_handlers_disconnect_matched (gpointer instance,
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GSignalMatchType mask,
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guint signal_id,
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GQuark detail,
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GClosure *closure,
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gpointer func,
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gpointer data);
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/*< private >*/
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gboolean g_signal_parse_name (const gchar *detailed_signal,
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GType itype,
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guint *signal_id_p,
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GQuark *detail_p,
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gboolean force_detail_quark);
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void g_signal_handlers_destroy (gpointer instance);
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void _g_signals_destroy (GType itype);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __G_SIGNAL_H__ */
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