1 /* GLIB sliced memory - fast threaded memory chunk allocator 2 * Copyright (C) 2005 Tim Janik 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Lesser General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Lesser General Public License for more details. 13 * 14 * You should have received a copy of the GNU Lesser General Public 15 * License along with this library; if not, write to the 16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 17 * Boston, MA 02111-1307, USA. 18 */ 19 20 #if defined(G_DISABLE_SINGLE_INCLUDES) && !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION) 21 #error "Only <glib.h> can be included directly." 22 #endif 23 24 #ifndef __G_SLICE_H__ 25 #define __G_SLICE_H__ 26 27 #ifndef __G_MEM_H__ 28 #error Include <glib.h> instead of <gslice.h> 29 #endif 30 31 #include <glib/gtypes.h> 32 33 G_BEGIN_DECLS 34 35 /* slices - fast allocation/release of small memory blocks 36 */ 37 gpointer g_slice_alloc (gsize block_size) G_GNUC_MALLOC G_GNUC_ALLOC_SIZE(1); 38 gpointer g_slice_alloc0 (gsize block_size) G_GNUC_MALLOC G_GNUC_ALLOC_SIZE(1); 39 gpointer g_slice_copy (gsize block_size, 40 gconstpointer mem_block) G_GNUC_MALLOC G_GNUC_ALLOC_SIZE(1); 41 void g_slice_free1 (gsize block_size, 42 gpointer mem_block); 43 void g_slice_free_chain_with_offset (gsize block_size, 44 gpointer mem_chain, 45 gsize next_offset); 46 #define g_slice_new(type) ((type*) g_slice_alloc (sizeof (type))) 47 #define g_slice_new0(type) ((type*) g_slice_alloc0 (sizeof (type))) 48 /* MemoryBlockType * 49 * g_slice_dup (MemoryBlockType, 50 * MemoryBlockType *mem_block); 51 * g_slice_free (MemoryBlockType, 52 * MemoryBlockType *mem_block); 53 * g_slice_free_chain (MemoryBlockType, 54 * MemoryBlockType *first_chain_block, 55 * memory_block_next_field); 56 * pseudo prototypes for the macro 57 * definitions following below. 58 */ 59 60 /* we go through extra hoops to ensure type safety */ 61 #define g_slice_dup(type, mem) \ 62 (1 ? (type*) g_slice_copy (sizeof (type), (mem)) \ 63 : ((void) ((type*) 0 == (mem)), (type*) 0)) 64 #define g_slice_free(type, mem) do { \ 65 if (1) g_slice_free1 (sizeof (type), (mem)); \ 66 else (void) ((type*) 0 == (mem)); \ 67 } while (0) 68 #define g_slice_free_chain(type, mem_chain, next) do { \ 69 if (1) g_slice_free_chain_with_offset (sizeof (type), \ 70 (mem_chain), G_STRUCT_OFFSET (type, next)); \ 71 else (void) ((type*) 0 == (mem_chain)); \ 72 } while (0) 73 74 75 /* --- internal debugging API --- */ 76 typedef enum { 77 G_SLICE_CONFIG_ALWAYS_MALLOC = 1, 78 G_SLICE_CONFIG_BYPASS_MAGAZINES, 79 G_SLICE_CONFIG_WORKING_SET_MSECS, 80 G_SLICE_CONFIG_COLOR_INCREMENT, 81 G_SLICE_CONFIG_CHUNK_SIZES, 82 G_SLICE_CONFIG_CONTENTION_COUNTER 83 } GSliceConfig; 84 void g_slice_set_config (GSliceConfig ckey, gint64 value); 85 gint64 g_slice_get_config (GSliceConfig ckey); 86 gint64* g_slice_get_config_state (GSliceConfig ckey, gint64 address, guint *n_values); 87 88 G_END_DECLS 89 90 #endif /* __G_SLICE_H__ */ 91
