7 #ifndef OM_ALLOC_SYSTEM_C
8 #define OM_ALLOC_SYSTEM_C
15 #include "omDefaultConfig.h"
21 #define OM_MALLOC_FROM_SYSTEM OM_MALLOC_MALLOC
22 #define OM_REALLOC_FROM_SYSTEM OM_MALLOC_REALLOC
23 #define OM_FREE_TO_SYSTEM OM_MALLOC_FREE
31 #if defined(OM_MALLOC_PROVIDES_SIZEOF_ADDR)
32 #define _omSizeOfLargeAddr(addr) (OM_MALLOC_SIZEOF_ADDR(addr) & (~SIZEOF_OM_ALIGNMENT_1))
37 size = OM_ALIGN_SIZE(size);
39 *((
size_t*) addr) =
size;
40 return (
void *)(addr + SIZEOF_STRICT_ALIGNMENT);
50 new_size = OM_ALIGN_SIZE(new_size);
51 _old_addr = (
char *)old_addr - SIZEOF_STRICT_ALIGNMENT;
53 *((
size_t*) _old_addr) + SIZEOF_STRICT_ALIGNMENT,
54 new_size + SIZEOF_STRICT_ALIGNMENT);
55 *((
size_t*) new_addr) = new_size;
56 return (
void *)(new_addr + SIZEOF_STRICT_ALIGNMENT);
61 char* _addr = (
char *)addr - SIZEOF_STRICT_ALIGNMENT;
65 #define _omSizeOfLargeAddr(addr) (*((size_t*) ((char*) addr - SIZEOF_STRICT_ALIGNMENT)))
72 memset(addr, 0, size);
87 if (new_size > old_size)
88 memset(new_addr + old_size, 0, new_size - old_size);
89 return (
void *)new_addr;
126 #ifdef OM_HAVE_VALLOC_MMAP
130 #define OM_VALLOC_FROM_SYSTEM omVallocMmap
131 #define OM_VFREE_TO_SYSTEM omVfreeMmap
133 #elif defined(OM_HAVE_VALLOC_MALLOC)
135 #define OM_VALLOC_FROM_SYSTEM OM_MALLOC_VALLOC
136 #define OM_VFREE_TO_SYSTEM OM_MALLOC_VFREE
140 #define OM_VALLOC_FROM_SYSTEM omEmulateValloc
141 #define OM_VFREE_TO_SYSTEM omEmulateVfree
143 #define OM_ALIGN_PAGE(addr) ( ((long)addr + (SIZEOF_SYSTEM_PAGE -1)) & ~(SIZEOF_SYSTEM_PAGE - 1))
148 size_t padding = SIZEOF_VOIDP;
149 size = OM_ALIGN_SIZE(size);
154 if ((
OM_ALIGN_PAGE(addr) + SIZEOF_VOIDP) - (
long) addr <= padding)
157 *((
void**) ((
void*) ret_addr +
size)) = addr;
163 padding = padding << 1;
170 size = OM_ALIGN_SIZE(size);
187 OM_MEMORY_LOW_HOOK();
191 OM_OUT_OF_MEMORY_HOOK();
197 if (((
unsigned long) ptr) + size >
om_MaxAddr)
207 #if defined(OM_HAVE_VALLOC_MMAP) && defined(OM_MALLOC_MAX_BYTES_SYSTEM)
208 if (
om_Info.CurrentBytesFromValloc + OM_MALLOC_MAX_BYTES_SYSTEM >
om_Info.MaxBytesSystem)
209 om_Info.MaxBytesSystem =
om_Info.CurrentBytesFromValloc + OM_MALLOC_MAX_BYTES_SYSTEM;
211 #if defined(HAVE_SBRK) && !defined(OM_MALLOC_MAX_BYTES_SBRK)
214 #ifndef OM_HAVE_VALLOC_MMAP
215 +
om_Info.CurrentBytesFromValloc
223 OM_MALLOC_HOOK(size);
239 OM_MEMORY_LOW_HOOK();
246 OM_OUT_OF_MEMORY_HOOK();
254 if (((
unsigned long) res) + newsize >
om_MaxAddr)
260 om_Info.CurrentBytesFromMalloc += (long) newsize - (
long) oldsize;
266 #if defined(OM_HAVE_VALLOC_MMAP) && defined(OM_MALLOC_MAX_BYTES_SYSTEM)
267 if (
om_Info.CurrentBytesFromValloc + OM_MALLOC_MAX_BYTES_SYSTEM >
om_Info.MaxBytesSystem)
268 om_Info.MaxBytesSystem =
om_Info.CurrentBytesFromValloc + OM_MALLOC_MAX_BYTES_SYSTEM;
270 #if defined(HAVE_SBRK) && !defined(OM_MALLOC_MAX_BYTES_SBRK)
272 #ifndef OM_HAVE_VALLOC_MMAP
273 +
om_Info.CurrentBytesFromValloc
282 OM_REALLOC_HOOK(oldsize, newsize);
303 OM_MEMORY_LOW_HOOK();
307 if (fail)
return NULL;
310 OM_OUT_OF_MEMORY_HOOK();
319 if (((
unsigned long) page) + size >
om_MaxAddr)
330 #if defined(OM_HAVE_VALLOC_MMAP) && defined(OM_MALLOC_MAX_BYTES_SYSTEM)
331 if (
om_Info.MaxBytesFromValloc + OM_MALLOC_MAX_BYTES_SYSTEM >
om_Info.MaxBytesSystem)
332 om_Info.MaxBytesSystem =
om_Info.MaxBytesFromValloc + OM_MALLOC_MAX_BYTES_SYSTEM;
334 #if defined(HAVE_SBRK) && !defined(OM_HAVE_VALLOC_MMAP) && !defined(OM_MALLOC_MAX_BYTES_SBRK)
340 +
om_Info.CurrentBytesFromValloc);
344 OM_VALLOC_HOOK(size);
#define OM_MALLOC_FROM_SYSTEM
void * omAllocFromSystem(size_t size)
unsigned long om_SbrkInit
#define OM_ALIGN_PAGE(addr)
#define OM_VALLOC_FROM_SYSTEM
void * omReallocSizeFromSystem(void *addr, size_t oldsize, size_t newsize)
size_t omSizeOfAddr(const void *addr)
void omFreeLarge(void *addr)
void omEmulateVfree(void *addr, size_t size)
void * omEmulateValloc(size_t size)
size_t omSizeOfLargeAddr(void *addr)
size_t omSizeWOfAddr(void *addr)
void * _omVallocFromSystem(size_t size, int fail)
#define _omSizeOfLargeAddr(addr)
void * omAllocLarge(size_t size)
void * omReallocLarge(void *old_addr, size_t new_size)
#define OM_REALLOC_FROM_SYSTEM
void omFreeSizeToSystem(void *addr, size_t size)
#define omIsBinAddrTrackAddr(addr)
void * omReallocFromSystem(void *addr, size_t newsize)
void omVfreeToSystem(void *page, size_t size)
#define omSizeWOfBinAddr(addr)
#define OM_VFREE_TO_SYSTEM
#define omSizeOfBinAddr(addr)
void * omRealloc0Large(void *old_addr, size_t new_size)
#define omIsBinPageAddr(addr)
void * omAlloc0Large(size_t size)
void omFreeToSystem(void *addr)
#define omIsAddrPageAligned(addr)
#define OM_FREE_TO_SYSTEM