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(HAVE_MALLOC_SIZE) 32 #include <malloc/malloc.h> 33 #define _omSizeOfLargeAddr(addr) (malloc_size(addr)) 34 #elif defined(HAVE_MALLOC_USABLE_SIZE) 36 #define _omSizeOfLargeAddr(addr) (malloc_usable_size(addr)) 41 size = OM_ALIGN_SIZE(size);
43 *((
size_t*) addr) =
size;
44 return (
void *)(addr + SIZEOF_STRICT_ALIGNMENT);
54 new_size = OM_ALIGN_SIZE(new_size);
55 _old_addr = (
char *)old_addr - SIZEOF_STRICT_ALIGNMENT;
57 *((
size_t*) _old_addr) + SIZEOF_STRICT_ALIGNMENT,
58 new_size + SIZEOF_STRICT_ALIGNMENT);
59 *((
size_t*) new_addr) = new_size;
60 return (
void *)(new_addr + SIZEOF_STRICT_ALIGNMENT);
65 char* _addr = (
char *)addr - SIZEOF_STRICT_ALIGNMENT;
69 #define _omSizeOfLargeAddr(addr) (*((size_t*) ((char*) addr - SIZEOF_STRICT_ALIGNMENT))) 75 memset(addr, 0, size);
90 if (new_size > old_size)
91 memset(new_addr + old_size, 0, new_size - old_size);
92 return (
void *)new_addr;
130 #ifdef OM_HAVE_VALLOC_MMAP 134 #define OM_VALLOC_FROM_SYSTEM omVallocMmap 135 #define OM_VFREE_TO_SYSTEM omVfreeMmap 137 #elif defined(OM_HAVE_VALLOC_MALLOC) 139 #define OM_VALLOC_FROM_SYSTEM OM_MALLOC_VALLOC 140 #define OM_VFREE_TO_SYSTEM OM_MALLOC_VFREE 144 #define OM_VALLOC_FROM_SYSTEM omEmulateValloc 145 #define OM_VFREE_TO_SYSTEM omEmulateVfree 147 #define OM_ALIGN_PAGE(addr) ( ((long)addr + (SIZEOF_SYSTEM_PAGE -1)) & ~(SIZEOF_SYSTEM_PAGE - 1)) 152 size_t padding = SIZEOF_VOIDP;
153 size = OM_ALIGN_SIZE(size);
158 if ((
OM_ALIGN_PAGE(addr) + SIZEOF_VOIDP) - (
long) addr <= padding)
161 *((
void**) ((
void*) ret_addr +
size)) = addr;
167 padding = padding << 1;
174 size = OM_ALIGN_SIZE(size);
191 OM_MEMORY_LOW_HOOK();
195 OM_OUT_OF_MEMORY_HOOK();
199 #if defined(HAVE_MALLOC_SIZE) || defined(HAVE_MALLOC_USABLE_SIZE) 205 if (((
unsigned long) ptr) + size >
om_MaxAddr)
215 #if defined(OM_HAVE_VALLOC_MMAP) && defined(OM_MALLOC_MAX_BYTES_SYSTEM) 216 if (
om_Info.CurrentBytesFromValloc + OM_MALLOC_MAX_BYTES_SYSTEM >
om_Info.MaxBytesSystem)
217 om_Info.MaxBytesSystem =
om_Info.CurrentBytesFromValloc + OM_MALLOC_MAX_BYTES_SYSTEM;
219 #if defined(HAVE_SBRK) && !defined(OM_MALLOC_MAX_BYTES_SBRK) 222 #ifndef OM_HAVE_VALLOC_MMAP
223 +
om_Info.CurrentBytesFromValloc
231 OM_MALLOC_HOOK(size);
248 OM_MEMORY_LOW_HOOK();
255 OM_OUT_OF_MEMORY_HOOK();
264 if (((
unsigned long) res) + newsize >
om_MaxAddr)
270 om_Info.CurrentBytesFromMalloc += (long) newsize - (
long) oldsize;
276 #if defined(OM_HAVE_VALLOC_MMAP) && defined(OM_MALLOC_MAX_BYTES_SYSTEM) 277 if (
om_Info.CurrentBytesFromValloc + OM_MALLOC_MAX_BYTES_SYSTEM >
om_Info.MaxBytesSystem)
278 om_Info.MaxBytesSystem =
om_Info.CurrentBytesFromValloc + OM_MALLOC_MAX_BYTES_SYSTEM;
280 #if defined(HAVE_SBRK) && !defined(OM_MALLOC_MAX_BYTES_SBRK) 282 #ifndef OM_HAVE_VALLOC_MMAP
283 +
om_Info.CurrentBytesFromValloc
292 OM_REALLOC_HOOK(oldsize, newsize);
313 OM_MEMORY_LOW_HOOK();
317 if (fail)
return NULL;
320 OM_OUT_OF_MEMORY_HOOK();
329 if (((
unsigned long) page) + size >
om_MaxAddr)
340 #if defined(OM_HAVE_VALLOC_MMAP) && defined(OM_MALLOC_MAX_BYTES_SYSTEM) 341 if (
om_Info.MaxBytesFromValloc + OM_MALLOC_MAX_BYTES_SYSTEM >
om_Info.MaxBytesSystem)
342 om_Info.MaxBytesSystem =
om_Info.MaxBytesFromValloc + OM_MALLOC_MAX_BYTES_SYSTEM;
344 #if defined(HAVE_SBRK) && !defined(OM_HAVE_VALLOC_MMAP) && !defined(OM_MALLOC_MAX_BYTES_SBRK) 350 +
om_Info.CurrentBytesFromValloc);
354 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