10 /* #define _SZ_ALLOC_DEBUG */
12 /* use _SZ_ALLOC_DEBUG to debug alloc/free operations */
13 #ifdef _SZ_ALLOC_DEBUG
16 int g_allocCountMid = 0;
17 int g_allocCountBig = 0;
20 void *MyAlloc(size_t size)
24 #ifdef _SZ_ALLOC_DEBUG
25 fprintf(stderr, "\nAlloc %10d bytes; count = %10d", size, g_allocCount++);
30 void MyFree(void *address)
32 #ifdef _SZ_ALLOC_DEBUG
34 fprintf(stderr, "\nFree; count = %10d", --g_allocCount);
41 void *MidAlloc(size_t size)
45 #ifdef _SZ_ALLOC_DEBUG
46 fprintf(stderr, "\nAlloc_Mid %10d bytes; count = %10d", size, g_allocCountMid++);
48 return VirtualAlloc(0, size, MEM_COMMIT, PAGE_READWRITE);
51 void MidFree(void *address)
53 #ifdef _SZ_ALLOC_DEBUG
55 fprintf(stderr, "\nFree_Mid; count = %10d", --g_allocCountMid);
59 VirtualFree(address, 0, MEM_RELEASE);
62 #ifndef MEM_LARGE_PAGES
63 #undef _7ZIP_LARGE_PAGES
66 #ifdef _7ZIP_LARGE_PAGES
67 SIZE_T g_LargePageSize = 0;
68 typedef SIZE_T (WINAPI *GetLargePageMinimumP)();
71 void SetLargePageSize()
73 #ifdef _7ZIP_LARGE_PAGES
75 GetLargePageMinimumP largePageMinimum = (GetLargePageMinimumP)
76 GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")), "GetLargePageMinimum");
77 if (largePageMinimum == 0)
79 size = largePageMinimum();
80 if (size == 0 || (size & (size - 1)) != 0)
82 g_LargePageSize = size;
87 void *BigAlloc(size_t size)
91 #ifdef _SZ_ALLOC_DEBUG
92 fprintf(stderr, "\nAlloc_Big %10d bytes; count = %10d", size, g_allocCountBig++);
95 #ifdef _7ZIP_LARGE_PAGES
96 if (g_LargePageSize != 0 && g_LargePageSize <= (1 << 30) && size >= (1 << 18))
98 void *res = VirtualAlloc(0, (size + g_LargePageSize - 1) & (~(g_LargePageSize - 1)),
99 MEM_COMMIT | MEM_LARGE_PAGES, PAGE_READWRITE);
104 return VirtualAlloc(0, size, MEM_COMMIT, PAGE_READWRITE);
107 void BigFree(void *address)
109 #ifdef _SZ_ALLOC_DEBUG
111 fprintf(stderr, "\nFree_Big; count = %10d", --g_allocCountBig);
116 VirtualFree(address, 0, MEM_RELEASE);