* 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/.
+ * GLib at ftp://ftp.gtk.org/pub/gtk/.
*/
+#if defined(G_DISABLE_SINGLE_INCLUDES) && !defined (__G_LIB_H__) && !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
-typedef struct _GAllocator GAllocator;
-typedef struct _GMemChunk GMemChunk;
typedef struct _GMemVTable GMemVTable;
/* Memory allocation functions
*/
-gpointer g_malloc (gulong n_bytes);
-gpointer g_malloc0 (gulong n_bytes);
+gpointer g_malloc (gsize n_bytes) G_GNUC_MALLOC;
+gpointer g_malloc0 (gsize n_bytes) G_GNUC_MALLOC;
gpointer g_realloc (gpointer mem,
- gulong n_bytes);
+ gsize n_bytes) G_GNUC_WARN_UNUSED_RESULT;
void g_free (gpointer mem);
-gpointer g_try_malloc (gulong n_bytes);
+gpointer g_try_malloc (gsize n_bytes) G_GNUC_MALLOC;
+gpointer g_try_malloc0 (gsize n_bytes) G_GNUC_MALLOC;
gpointer g_try_realloc (gpointer mem,
- gulong n_bytes);
+ gsize n_bytes) G_GNUC_WARN_UNUSED_RESULT;
/* Convenience memory allocators
#define g_renew(struct_type, mem, n_structs) \
((struct_type *) g_realloc ((mem), ((gsize) sizeof (struct_type)) * ((gsize) (n_structs))))
+#define g_try_new(struct_type, n_structs) \
+ ((struct_type *) g_try_malloc (((gsize) sizeof (struct_type)) * ((gsize) (n_structs))))
+#define g_try_new0(struct_type, n_structs) \
+ ((struct_type *) g_try_malloc0 (((gsize) sizeof (struct_type)) * ((gsize) (n_structs))))
+#define g_try_renew(struct_type, mem, n_structs) \
+ ((struct_type *) g_try_realloc ((mem), ((gsize) sizeof (struct_type)) * ((gsize) (n_structs))))
+
/* Memory allocation virtualization for debugging purposes
* g_mem_set_vtable() has to be the very first GLib function called
gpointer (*realloc) (gpointer mem,
gsize n_bytes);
void (*free) (gpointer mem);
- /* optional */
+ /* optional; set to NULL if not used ! */
gpointer (*calloc) (gsize n_blocks,
gsize n_block_bytes);
gpointer (*try_malloc) (gsize n_bytes);
gsize n_bytes);
};
void g_mem_set_vtable (GMemVTable *vtable);
-gboolean g_mem_vtable_is_set (void);
+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()
*/
void g_mem_profile (void);
-/* Memchunk convenience functions
- */
+/* 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), \
#define g_chunk_free(mem, mem_chunk) G_STMT_START { \
g_mem_chunk_free ((mem_chunk), (mem)); \
} G_STMT_END
-
-
-/* "g_mem_chunk_new" creates a new memory chunk.
- * Memory chunks are used to allocate pieces of memory which are
- * always the same size. Lists are a good example of such a data type.
- * The memory chunk allocates and frees blocks of memory as needed.
- * Just be sure to call "g_mem_chunk_free" and not "g_free" on data
- * allocated in a mem chunk. ("g_free" will most likely cause a seg
- * fault...somewhere).
- *
- * Oh yeah, GMemChunk is an opaque data type. (You don't really
- * want to know what's going on inside do you?)
- */
-
-/* ALLOC_ONLY MemChunk's can only allocate memory. The free operation
- * is interpreted as a no op. ALLOC_ONLY MemChunk's save 4 bytes per
- * atom. (They are also useful for lists which use MemChunk to allocate
- * memory but are also part of the MemChunk implementation).
- * ALLOC_AND_FREE MemChunk's can allocate and free memory.
- */
-
#define G_ALLOC_ONLY 1
#define G_ALLOC_AND_FREE 2
-
GMemChunk* g_mem_chunk_new (const gchar *name,
gint atom_size,
- gulong area_size,
+ gsize area_size,
gint type);
void g_mem_chunk_destroy (GMemChunk *mem_chunk);
gpointer g_mem_chunk_alloc (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);
-
-/* Ah yes...we have a "g_blow_chunks" function.
- * "g_blow_chunks" simply compresses all the chunks. This operation
- * consists of freeing every memory area that should be freed (but
- * which we haven't gotten around to doing yet). And, no,
- * "g_blow_chunks" doesn't follow the naming scheme, but it is a
- * much better name than "g_mem_chunk_clean_all" or something
- * similar.
- */
-void g_blow_chunks (void);
-
-
-/* Generic allocators
- */
-GAllocator* g_allocator_new (const gchar *name,
- guint n_preallocs);
-void g_allocator_free (GAllocator *allocator);
-
-/* internal */
-#define G_ALLOCATOR_LIST (1)
-#define G_ALLOCATOR_SLIST (2)
-#define G_ALLOCATOR_NODE (3)
-
+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
projects / platform / upstream / glib.git / blobdiff