1 files changed, 96 insertions, 0 deletions
diff --git a/dbus/dbus-dataslot.h b/dbus/dbus-dataslot.h
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+++ b/dbus/dbus-dataslot.h
@@ -0,0 +1,96 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+/* dbus-dataslot.h  storing data on objects
+ *
+ * Copyright (C) 2003 Red Hat, Inc.
+ *
+ * Licensed under the Academic Free License version 2.1
+ * 
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+#ifndef DBUS_DATASLOT_H
+#define DBUS_DATASLOT_H
+
+#include <dbus/dbus-internals.h>
+
+DBUS_BEGIN_DECLS
+
+typedef struct DBusDataSlotAllocator DBusDataSlotAllocator;
+typedef struct DBusDataSlotList DBusDataSlotList;
+
+/** Opaque typedef for DBusDataSlot */
+typedef struct DBusDataSlot DBusDataSlot;
+/** DBusDataSlot is used to store application data on the connection */
+struct DBusDataSlot
+{
+  void *data;                      /**< The application data */
+  DBusFreeFunction free_data_func; /**< Free the application data */
+};
+
+typedef struct DBusAllocatedSlot DBusAllocatedSlot;
+
+/** An allocated slot for storing data
+ */
+struct DBusAllocatedSlot
+{
+  dbus_int32_t slot_id;  /**< ID of this slot */
+  int          refcount; /**< Number of uses of the slot */
+};
+
+/**
+ * An allocator that tracks a set of slot IDs.
+ */
+struct DBusDataSlotAllocator
+{
+  DBusAllocatedSlot *allocated_slots; /**< Allocated slots */
+  int  n_allocated_slots; /**< number of slots malloc'd */
+  int  n_used_slots;      /**< number of slots used */
+  DBusMutex **lock_loc;   /**< location of thread lock */
+};
+
+/**
+ * Data structure that stores the actual user data set at a given
+ * slot.
+ */
+struct DBusDataSlotList
+{
+  DBusDataSlot *slots;   /**< Data slots */
+  int           n_slots; /**< Slots we have storage for in data_slots */
+};
+
+dbus_bool_t _dbus_data_slot_allocator_init  (DBusDataSlotAllocator  *allocator);
+dbus_bool_t _dbus_data_slot_allocator_alloc (DBusDataSlotAllocator  *allocator,
+                                             DBusMutex              **mutex_loc,
+                                             int                    *slot_id_p);
+void        _dbus_data_slot_allocator_free  (DBusDataSlotAllocator  *allocator,
+                                             int                    *slot_id_p);
+void        _dbus_data_slot_list_init       (DBusDataSlotList       *list);
+dbus_bool_t _dbus_data_slot_list_set        (DBusDataSlotAllocator  *allocator,
+                                             DBusDataSlotList       *list,
+                                             int                     slot,
+                                             void                   *data,
+                                             DBusFreeFunction        free_data_func,
+                                             DBusFreeFunction       *old_free_func,
+                                             void                  **old_data);
+void*       _dbus_data_slot_list_get        (DBusDataSlotAllocator  *allocator,
+                                             DBusDataSlotList       *list,
+                                             int                     slot);
+void        _dbus_data_slot_list_clear      (DBusDataSlotList       *list);
+void        _dbus_data_slot_list_free       (DBusDataSlotList       *list);
+
+
+DBUS_END_DECLS
+
+#endif /* DBUS_DATASLOT_H */