13 /* #define _SZ_ALLOC_DEBUG */
14 /* use _SZ_ALLOC_DEBUG to debug alloc/free operations */
15 #ifdef _SZ_ALLOC_DEBUG
18 int g_allocCountMid = 0;
19 int g_allocCountBig = 0;
22 void *MyAlloc(size_t size) throw()
26 #ifdef _SZ_ALLOC_DEBUG
27 fprintf(stderr, "\nAlloc %10d bytes; count = %10d", size, g_allocCount++);
29 return ::malloc(size);
32 void MyFree(void *address) throw()
34 #ifdef _SZ_ALLOC_DEBUG
36 fprintf(stderr, "\nFree; count = %10d", --g_allocCount);
44 void *MidAlloc(size_t size) throw()
48 #ifdef _SZ_ALLOC_DEBUG
49 fprintf(stderr, "\nAlloc_Mid %10d bytes; count = %10d", size, g_allocCountMid++);
51 return ::VirtualAlloc(0, size, MEM_COMMIT, PAGE_READWRITE);
54 void MidFree(void *address) throw()
56 #ifdef _SZ_ALLOC_DEBUG
58 fprintf(stderr, "\nFree_Mid; count = %10d", --g_allocCountMid);
62 ::VirtualFree(address, 0, MEM_RELEASE);
65 static SIZE_T g_LargePageSize =
72 typedef SIZE_T (WINAPI *GetLargePageMinimumP)();
74 bool SetLargePageSize()
76 GetLargePageMinimumP largePageMinimum = (GetLargePageMinimumP)
77 ::GetProcAddress(::GetModuleHandle(TEXT("kernel32.dll")), "GetLargePageMinimum");
78 if (largePageMinimum == 0)
80 SIZE_T size = largePageMinimum();
81 if (size == 0 || (size & (size - 1)) != 0)
83 g_LargePageSize = size;
88 void *BigAlloc(size_t size) throw()
92 #ifdef _SZ_ALLOC_DEBUG
93 fprintf(stderr, "\nAlloc_Big %10d bytes; count = %10d", size, g_allocCountBig++);
96 if (size >= (1 << 18))
98 void *res = ::VirtualAlloc(0, (size + g_LargePageSize - 1) & (~(g_LargePageSize - 1)),
99 MEM_COMMIT, PAGE_READWRITE);
103 return ::VirtualAlloc(0, size, MEM_COMMIT, PAGE_READWRITE);
106 void BigFree(void *address) throw()
108 #ifdef _SZ_ALLOC_DEBUG
110 fprintf(stderr, "\nFree_Big; count = %10d", --g_allocCountBig);
115 ::VirtualFree(address, 0, MEM_RELEASE);