WvStreams
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00001 /* -*- mode: C; c-file-style: "gnu" -*- */ 00002 /* dbus-dataslot.h storing data on objects 00003 * 00004 * Copyright (C) 2003 Red Hat, Inc. 00005 * 00006 * Licensed under the Academic Free License version 2.1 00007 * 00008 * This program is free software; you can redistribute it and/or modify 00009 * it under the terms of the GNU General Public License as published by 00010 * the Free Software Foundation; either version 2 of the License, or 00011 * (at your option) any later version. 00012 * 00013 * This program is distributed in the hope that it will be useful, 00014 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00016 * GNU General Public License for more details. 00017 * 00018 * You should have received a copy of the GNU General Public License 00019 * along with this program; if not, write to the Free Software 00020 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00021 * 00022 */ 00023 #ifndef DBUS_DATASLOT_H 00024 #define DBUS_DATASLOT_H 00025 00026 #include <dbus/dbus-internals.h> 00027 00028 DBUS_BEGIN_DECLS 00029 00030 typedef struct DBusDataSlotAllocator DBusDataSlotAllocator; 00031 typedef struct DBusDataSlotList DBusDataSlotList; 00032 00034 typedef struct DBusDataSlot DBusDataSlot; 00036 struct DBusDataSlot 00037 { 00038 void *data; 00039 DBusFreeFunction free_data_func; 00040 }; 00041 00042 typedef struct DBusAllocatedSlot DBusAllocatedSlot; 00043 00046 struct DBusAllocatedSlot 00047 { 00048 dbus_int32_t slot_id; 00049 int refcount; 00050 }; 00051 00055 struct DBusDataSlotAllocator 00056 { 00057 DBusAllocatedSlot *allocated_slots; 00058 int n_allocated_slots; 00059 int n_used_slots; 00060 DBusMutex *lock; 00061 }; 00062 00067 struct DBusDataSlotList 00068 { 00069 DBusDataSlot *slots; 00070 int n_slots; 00071 }; 00072 00073 dbus_bool_t _dbus_data_slot_allocator_init (DBusDataSlotAllocator *allocator); 00074 dbus_bool_t _dbus_data_slot_allocator_alloc (DBusDataSlotAllocator *allocator, 00075 DBusMutex *mutex, 00076 int *slot_id_p); 00077 void _dbus_data_slot_allocator_free (DBusDataSlotAllocator *allocator, 00078 int *slot_id_p); 00079 void _dbus_data_slot_list_init (DBusDataSlotList *list); 00080 dbus_bool_t _dbus_data_slot_list_set (DBusDataSlotAllocator *allocator, 00081 DBusDataSlotList *list, 00082 int slot, 00083 void *data, 00084 DBusFreeFunction free_data_func, 00085 DBusFreeFunction *old_free_func, 00086 void **old_data); 00087 void* _dbus_data_slot_list_get (DBusDataSlotAllocator *allocator, 00088 DBusDataSlotList *list, 00089 int slot); 00090 void _dbus_data_slot_list_clear (DBusDataSlotList *list); 00091 void _dbus_data_slot_list_free (DBusDataSlotList *list); 00092 00093 00094 DBUS_END_DECLS 00095 00096 #endif /* DBUS_DATASLOT_H */