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Diffstat (limited to 'protocols/Sametime/src/glib/gmem.h')
| -rw-r--r-- | protocols/Sametime/src/glib/gmem.h | 309 |
1 files changed, 309 insertions, 0 deletions
diff --git a/protocols/Sametime/src/glib/gmem.h b/protocols/Sametime/src/glib/gmem.h new file mode 100644 index 0000000000..01d953e6c5 --- /dev/null +++ b/protocols/Sametime/src/glib/gmem.h @@ -0,0 +1,309 @@ +/* GLIB - Library of useful routines for C programming + * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald + * + * 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 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, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +/* + * Modified by the GLib Team and others 1997-2000. See the AUTHORS + * file for a list of people on the GLib Team. See the ChangeLog + * files for a list of changes. These files are distributed with + * GLib at ftp://ftp.gtk.org/pub/gtk/. + */ + +#if defined(G_DISABLE_SINGLE_INCLUDES) && !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION) +#error "Only <glib.h> can be included directly." +#endif + +#ifndef __G_MEM_H__ +#define __G_MEM_H__ + +#include <glib/gslice.h> +#include <glib/gtypes.h> + +G_BEGIN_DECLS + +/** + * GMemVTable: + * @malloc: function to use for allocating memory. + * @realloc: function to use for reallocating memory. + * @free: function to use to free memory. + * @calloc: function to use for allocating zero-filled memory. + * @try_malloc: function to use for allocating memory without a default error handler. + * @try_realloc: function to use for reallocating memory without a default error handler. + * + * A set of functions used to perform memory allocation. The same #GMemVTable must + * be used for all allocations in the same program; a call to g_mem_set_vtable(), + * if it exists, should be prior to any use of GLib. + */ +typedef struct _GMemVTable GMemVTable; + + +#if GLIB_SIZEOF_VOID_P > GLIB_SIZEOF_LONG +/** + * G_MEM_ALIGN: + * + * Indicates the number of bytes to which memory will be aligned on the + * current platform. + */ +# define G_MEM_ALIGN GLIB_SIZEOF_VOID_P +#else /* GLIB_SIZEOF_VOID_P <= GLIB_SIZEOF_LONG */ +# define G_MEM_ALIGN GLIB_SIZEOF_LONG +#endif /* GLIB_SIZEOF_VOID_P <= GLIB_SIZEOF_LONG */ + + +/* Memory allocation functions + */ + +void g_free (gpointer mem); + +gpointer g_malloc (gsize n_bytes) G_GNUC_MALLOC G_GNUC_ALLOC_SIZE(1); +gpointer g_malloc0 (gsize n_bytes) G_GNUC_MALLOC G_GNUC_ALLOC_SIZE(1); +gpointer g_realloc (gpointer mem, + gsize n_bytes) G_GNUC_WARN_UNUSED_RESULT; +gpointer g_try_malloc (gsize n_bytes) G_GNUC_MALLOC G_GNUC_ALLOC_SIZE(1); +gpointer g_try_malloc0 (gsize n_bytes) G_GNUC_MALLOC G_GNUC_ALLOC_SIZE(1); +gpointer g_try_realloc (gpointer mem, + gsize n_bytes) G_GNUC_WARN_UNUSED_RESULT; + +gpointer g_malloc_n (gsize n_blocks, + gsize n_block_bytes) G_GNUC_MALLOC G_GNUC_ALLOC_SIZE2(1,2); +gpointer g_malloc0_n (gsize n_blocks, + gsize n_block_bytes) G_GNUC_MALLOC G_GNUC_ALLOC_SIZE2(1,2); +gpointer g_realloc_n (gpointer mem, + gsize n_blocks, + gsize n_block_bytes) G_GNUC_WARN_UNUSED_RESULT; +gpointer g_try_malloc_n (gsize n_blocks, + gsize n_block_bytes) G_GNUC_MALLOC G_GNUC_ALLOC_SIZE2(1,2); +gpointer g_try_malloc0_n (gsize n_blocks, + gsize n_block_bytes) G_GNUC_MALLOC G_GNUC_ALLOC_SIZE2(1,2); +gpointer g_try_realloc_n (gpointer mem, + gsize n_blocks, + gsize n_block_bytes) G_GNUC_WARN_UNUSED_RESULT; + + +/* Optimise: avoid the call to the (slower) _n function if we can + * determine at compile-time that no overflow happens. + */ +#if defined (__GNUC__) && (__GNUC__ >= 2) && defined (__OPTIMIZE__) +# define _G_NEW(struct_type, n_structs, func) \ + (struct_type *) (__extension__ ({ \ + gsize __n = (gsize) (n_structs); \ + gsize __s = sizeof (struct_type); \ + gpointer __p; \ + if (__s == 1) \ + __p = g_##func (__n); \ + else if (__builtin_constant_p (__n) && \ + (__s == 0 || __n <= G_MAXSIZE / __s)) \ + __p = g_##func (__n * __s); \ + else \ + __p = g_##func##_n (__n, __s); \ + __p; \ + })) +# define _G_RENEW(struct_type, mem, n_structs, func) \ + (struct_type *) (__extension__ ({ \ + gsize __n = (gsize) (n_structs); \ + gsize __s = sizeof (struct_type); \ + gpointer __p = (gpointer) (mem); \ + if (__s == 1) \ + __p = g_##func (__p, __n); \ + else if (__builtin_constant_p (__n) && \ + (__s == 0 || __n <= G_MAXSIZE / __s)) \ + __p = g_##func (__p, __n * __s); \ + else \ + __p = g_##func##_n (__p, __n, __s); \ + __p; \ + })) + +#else + +/* Unoptimised version: always call the _n() function. */ + +#define _G_NEW(struct_type, n_structs, func) \ + ((struct_type *) g_##func##_n ((n_structs), sizeof (struct_type))) +#define _G_RENEW(struct_type, mem, n_structs, func) \ + ((struct_type *) g_##func##_n (mem, (n_structs), sizeof (struct_type))) + +#endif + +/** + * g_new: + * @struct_type: the type of the elements to allocate + * @n_structs: the number of elements to allocate + * + * Allocates @n_structs elements of type @struct_type. + * The returned pointer is cast to a pointer to the given type. + * If @n_structs is 0 it returns %NULL. + * Care is taken to avoid overflow when calculating the size of the allocated block. + * + * Since the returned pointer is already casted to the right type, + * it is normally unnecessary to cast it explicitly, and doing + * so might hide memory allocation errors. + * + * Returns: a pointer to the allocated memory, cast to a pointer to @struct_type + */ +#define g_new(struct_type, n_structs) _G_NEW (struct_type, n_structs, malloc) +/** + * g_new0: + * @struct_type: the type of the elements to allocate. + * @n_structs: the number of elements to allocate. + * + * Allocates @n_structs elements of type @struct_type, initialized to 0's. + * The returned pointer is cast to a pointer to the given type. + * If @n_structs is 0 it returns %NULL. + * Care is taken to avoid overflow when calculating the size of the allocated block. + * + * Since the returned pointer is already casted to the right type, + * it is normally unnecessary to cast it explicitly, and doing + * so might hide memory allocation errors. + * + * Returns: a pointer to the allocated memory, cast to a pointer to @struct_type. + */ +#define g_new0(struct_type, n_structs) _G_NEW (struct_type, n_structs, malloc0) +/** + * g_renew: + * @struct_type: the type of the elements to allocate + * @mem: the currently allocated memory + * @n_structs: the number of elements to allocate + * + * Reallocates the memory pointed to by @mem, so that it now has space for + * @n_structs elements of type @struct_type. It returns the new address of + * the memory, which may have been moved. + * Care is taken to avoid overflow when calculating the size of the allocated block. + * + * Returns: a pointer to the new allocated memory, cast to a pointer to @struct_type + */ +#define g_renew(struct_type, mem, n_structs) _G_RENEW (struct_type, mem, n_structs, realloc) +/** + * g_try_new: + * @struct_type: the type of the elements to allocate + * @n_structs: the number of elements to allocate + * + * Attempts to allocate @n_structs elements of type @struct_type, and returns + * %NULL on failure. Contrast with g_new(), which aborts the program on failure. + * The returned pointer is cast to a pointer to the given type. + * The function returns %NULL when @n_structs is 0 of if an overflow occurs. + * + * Since: 2.8 + * Returns: a pointer to the allocated memory, cast to a pointer to @struct_type + */ +#define g_try_new(struct_type, n_structs) _G_NEW (struct_type, n_structs, try_malloc) +/** + * g_try_new0: + * @struct_type: the type of the elements to allocate + * @n_structs: the number of elements to allocate + * + * Attempts to allocate @n_structs elements of type @struct_type, initialized + * to 0's, and returns %NULL on failure. Contrast with g_new0(), which aborts + * the program on failure. + * The returned pointer is cast to a pointer to the given type. + * The function returns %NULL when @n_structs is 0 of if an overflow occurs. + * + * Since: 2.8 + * Returns: a pointer to the allocated memory, cast to a pointer to @struct_type + */ +#define g_try_new0(struct_type, n_structs) _G_NEW (struct_type, n_structs, try_malloc0) +/** + * g_try_renew: + * @struct_type: the type of the elements to allocate + * @mem: the currently allocated memory + * @n_structs: the number of elements to allocate + * + * Attempts to reallocate the memory pointed to by @mem, so that it now has + * space for @n_structs elements of type @struct_type, and returns %NULL on + * failure. Contrast with g_renew(), which aborts the program on failure. + * It returns the new address of the memory, which may have been moved. + * The function returns %NULL if an overflow occurs. + * + * Since: 2.8 + * Returns: a pointer to the new allocated memory, cast to a pointer to @struct_type + */ +#define g_try_renew(struct_type, mem, n_structs) _G_RENEW (struct_type, mem, n_structs, try_realloc) + + +/* Memory allocation virtualization for debugging purposes + * g_mem_set_vtable() has to be the very first GLib function called + * if being used + */ +struct _GMemVTable { + gpointer (*malloc) (gsize n_bytes); + gpointer (*realloc) (gpointer mem, + gsize n_bytes); + void (*free) (gpointer mem); + /* optional; set to NULL if not used ! */ + gpointer (*calloc) (gsize n_blocks, + gsize n_block_bytes); + gpointer (*try_malloc) (gsize n_bytes); + gpointer (*try_realloc) (gpointer mem, + gsize n_bytes); +}; +void g_mem_set_vtable (GMemVTable *vtable); +gboolean g_mem_is_system_malloc (void); + +GLIB_VAR gboolean g_mem_gc_friendly; + +/* Memory profiler and checker, has to be enabled via g_mem_set_vtable() + */ +GLIB_VAR GMemVTable *glib_mem_profiler_table; +void g_mem_profile (void); + + +/* deprecated memchunks and allocators */ +#if !defined (G_DISABLE_DEPRECATED) || defined (GTK_COMPILATION) || defined (GDK_COMPILATION) +typedef struct _GAllocator GAllocator; +typedef struct _GMemChunk GMemChunk; +#define g_mem_chunk_create(type, pre_alloc, alloc_type) ( \ + g_mem_chunk_new (#type " mem chunks (" #pre_alloc ")", \ + sizeof (type), \ + sizeof (type) * (pre_alloc), \ + (alloc_type)) \ +) +#define g_chunk_new(type, chunk) ( \ + (type *) g_mem_chunk_alloc (chunk) \ +) +#define g_chunk_new0(type, chunk) ( \ + (type *) g_mem_chunk_alloc0 (chunk) \ +) +#define g_chunk_free(mem, mem_chunk) G_STMT_START { \ + g_mem_chunk_free ((mem_chunk), (mem)); \ +} G_STMT_END +#define G_ALLOC_ONLY 1 +#define G_ALLOC_AND_FREE 2 +GMemChunk* g_mem_chunk_new (const gchar *name, + gint atom_size, + gsize area_size, + gint type); +void g_mem_chunk_destroy (GMemChunk *mem_chunk); +gpointer g_mem_chunk_alloc (GMemChunk *mem_chunk); +gpointer g_mem_chunk_alloc0 (GMemChunk *mem_chunk); +void g_mem_chunk_free (GMemChunk *mem_chunk, + gpointer mem); +void g_mem_chunk_clean (GMemChunk *mem_chunk); +void g_mem_chunk_reset (GMemChunk *mem_chunk); +void g_mem_chunk_print (GMemChunk *mem_chunk); +void g_mem_chunk_info (void); +void g_blow_chunks (void); +GAllocator*g_allocator_new (const gchar *name, + guint n_preallocs); +void g_allocator_free (GAllocator *allocator); +#define G_ALLOCATOR_LIST (1) +#define G_ALLOCATOR_SLIST (2) +#define G_ALLOCATOR_NODE (3) +#endif /* G_DISABLE_DEPRECATED */ + +G_END_DECLS + +#endif /* __G_MEM_H__ */ |