4 * Copyright 2004 Develer S.r.l. (http://www.develer.com/)
5 * Copyright 1999,2000,2001 Bernardo Innocenti <bernie@develer.com>
6 * This file is part of DevLib - See README.devlib for information.
9 * \brief Heap subsystem (public interface).
13 * \author Bernardo Innocenti <bernie@develer.com>
15 * \todo Heap memory could be defined as an array of MemChunk, and used
16 * in this form also within the implementation. This would probably remove
17 * memory alignment problems, and also some aliasing issues.
23 *#* Revision 1.5 2005/11/04 16:20:02 bernie
24 *#* Fix reference to README.devlib in header.
26 *#* Revision 1.4 2005/04/11 19:10:28 bernie
27 *#* Include top-level headers from cfg/ subdir.
29 *#* Revision 1.3 2004/08/25 14:12:09 rasky
30 *#* Aggiornato il comment block dei log RCS
32 *#* Revision 1.2 2004/08/04 15:54:18 rasky
33 *#* Merge da SC: prima versione veramente funzionante
35 *#* Revision 1.1 2004/07/31 16:33:58 rasky
36 *#* Spostato lo heap da kern/ a mware/
38 *#* Revision 1.2 2004/06/03 11:27:09 bernie
39 *#* Add dual-license information.
41 *#* Revision 1.1 2004/05/23 17:27:00 bernie
42 *#* Import kern/ subdirectory.
49 #include <cfg/compiler.h>
50 #include <cfg/config.h>
57 struct _MemChunk *FreeList; //!< Head of the free list
61 //! Initialize \a heap within the buffer pointed by \a memory which is of \a size bytes
62 void heap_init(struct Heap* heap, void* memory, size_t size);
64 //! Allocate a chunk of memory of \a size bytes from the heap
65 void *heap_allocmem(struct Heap* heap, size_t size);
67 //! Free a chunk of memory of \a size bytes from the heap
68 void heap_freemem(struct Heap* heap, void *mem, size_t size);
71 #define HNEW(heap, type) \
72 (type*)heap_allocmem(heap, sizeof(type))
74 #define HNEWVEC(heap, type, nelem) \
75 (type*)heap_allocmem(heap, sizeof(type) * (nelem))
77 #define HDELETE(heap, type, mem) \
78 heap_freemem(heap, mem, sizeof(type))
80 #define HDELETEVEC(heap, type, nelem, mem) \
81 heap_freemem(heap, mem, sizeof(type) * (nelem))
84 #if CONFIG_HEAP_MALLOC
86 void *heap_malloc(struct Heap* heap, size_t size);
87 void *heap_calloc(struct Heap* heap, size_t size);
88 void heap_free(struct Heap* heap, void * mem);
92 #endif /* MWARE_HEAP_H */