1 /* grcbox.h: Reference counted data 2 * 3 * Copyright 2018 Emmanuele Bassi 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Lesser General Public 7 * License as published by the Free Software Foundation; either 8 * version 2.1 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Lesser General Public License for more details. 14 * 15 * You should have received a copy of the GNU Lesser General Public 16 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 17 */ 18 19 #pragma once 20 21 #if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION) 22 #error "Only <glib.h> can be included directly." 23 #endif 24 25 #include <glib/gmem.h> 26 #include <glib/glib-typeof.h> 27 28 G_BEGIN_DECLS 29 30 GLIB_AVAILABLE_IN_2_58 31 gpointer g_rc_box_alloc (gsize block_size) G_GNUC_MALLOC G_GNUC_ALLOC_SIZE(1); 32 GLIB_AVAILABLE_IN_2_58 33 gpointer g_rc_box_alloc0 (gsize block_size) G_GNUC_MALLOC G_GNUC_ALLOC_SIZE(1); 34 GLIB_AVAILABLE_IN_2_58 35 gpointer g_rc_box_dup (gsize block_size, 36 gconstpointer mem_block) G_GNUC_ALLOC_SIZE(1); 37 GLIB_AVAILABLE_IN_2_58 38 gpointer g_rc_box_acquire (gpointer mem_block); 39 GLIB_AVAILABLE_IN_2_58 40 void g_rc_box_release (gpointer mem_block); 41 GLIB_AVAILABLE_IN_2_58 42 void g_rc_box_release_full (gpointer mem_block, 43 GDestroyNotify clear_func); 44 45 GLIB_AVAILABLE_IN_2_58 46 gsize g_rc_box_get_size (gpointer mem_block); 47 48 GLIB_AVAILABLE_IN_2_58 49 gpointer g_atomic_rc_box_alloc (gsize block_size) G_GNUC_MALLOC G_GNUC_ALLOC_SIZE(1); 50 GLIB_AVAILABLE_IN_2_58 51 gpointer g_atomic_rc_box_alloc0 (gsize block_size) G_GNUC_MALLOC G_GNUC_ALLOC_SIZE(1); 52 GLIB_AVAILABLE_IN_2_58 53 gpointer g_atomic_rc_box_dup (gsize block_size, 54 gconstpointer mem_block) G_GNUC_ALLOC_SIZE(1); 55 GLIB_AVAILABLE_IN_2_58 56 gpointer g_atomic_rc_box_acquire (gpointer mem_block); 57 GLIB_AVAILABLE_IN_2_58 58 void g_atomic_rc_box_release (gpointer mem_block); 59 GLIB_AVAILABLE_IN_2_58 60 void g_atomic_rc_box_release_full (gpointer mem_block, 61 GDestroyNotify clear_func); 62 63 GLIB_AVAILABLE_IN_2_58 64 gsize g_atomic_rc_box_get_size (gpointer mem_block); 65 66 #define g_rc_box_new(type) \ 67 ((type *) g_rc_box_alloc (sizeof (type))) 68 #define g_rc_box_new0(type) \ 69 ((type *) g_rc_box_alloc0 (sizeof (type))) 70 #define g_atomic_rc_box_new(type) \ 71 ((type *) g_atomic_rc_box_alloc (sizeof (type))) 72 #define g_atomic_rc_box_new0(type) \ 73 ((type *) g_atomic_rc_box_alloc0 (sizeof (type))) 74 75 #if defined(glib_typeof) 76 /* Type check to avoid assigning references to different types */ 77 #define g_rc_box_acquire(mem_block) \ 78 ((glib_typeof (mem_block)) (g_rc_box_acquire) (mem_block)) 79 #define g_atomic_rc_box_acquire(mem_block) \ 80 ((glib_typeof (mem_block)) (g_atomic_rc_box_acquire) (mem_block)) 81 82 /* Type check to avoid duplicating data to different types */ 83 #define g_rc_box_dup(block_size, mem_block) \ 84 ((glib_typeof (mem_block)) (g_rc_box_dup) (block_size, mem_block)) 85 #define g_atomic_rc_box_dup(block_size, mem_block) \ 86 ((glib_typeof (mem_block)) (g_atomic_rc_box_dup) (block_size, mem_block)) 87 #endif 88 89 G_END_DECLS 90