| /* grcboxprivate.h: Reference counted data |
| * |
| * Copyright 2018 Emmanuele Bassi |
| * |
| * SPDX-License-Identifier: LGPL-2.1-or-later |
| * |
| * 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 2.1 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, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #pragma once |
| |
| #include "gtypes.h" |
| #include "grcbox.h" |
| |
| G_BEGIN_DECLS |
| |
| typedef struct { |
| grefcount ref_count; |
| |
| gsize mem_size; |
| gsize private_offset; |
| |
| #ifndef G_DISABLE_ASSERT |
| /* A "magic" number, used to perform additional integrity |
| * checks on the allocated data |
| */ |
| guint32 magic; |
| #endif |
| } GRcBox; |
| |
| typedef struct { |
| gatomicrefcount ref_count; |
| |
| gsize mem_size; |
| gsize private_offset; |
| |
| #ifndef G_DISABLE_ASSERT |
| guint32 magic; |
| #endif |
| } GArcBox; |
| |
| #define G_BOX_MAGIC 0x44ae2bf0 |
| |
| /* Keep the two refcounted boxes identical in size */ |
| G_STATIC_ASSERT (sizeof (GRcBox) == sizeof (GArcBox)); |
| |
| /* This is the default alignment we use when allocating the |
| * refcounted memory blocks; it's similar to the alignment |
| * guaranteed by the malloc() in GNU's libc and by the GSlice |
| * allocator |
| */ |
| #define STRUCT_ALIGNMENT (2 * sizeof (gsize)) |
| |
| #define G_RC_BOX_SIZE sizeof (GRcBox) |
| #define G_ARC_BOX_SIZE sizeof (GArcBox) |
| |
| gpointer g_rc_box_alloc_full (gsize block_size, |
| gsize alignment, |
| gboolean atomic, |
| gboolean clear); |
| |
| G_END_DECLS |