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This breaks compiling windows binaries if the underlaying filesystem is not case sensitive. An example would be using /mnt/c folder under WSL. Any update on the LZMA SDK needs to be post processed with this command: sed -i 's/<Windows.h>/<windows.h>/' deps/LZMA-SDK/C/*.c deps/LZMA-SDK/C/*.h
464 lines
10 KiB
C
464 lines
10 KiB
C
/* Alloc.c -- Memory allocation functions
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2020-10-29 : Igor Pavlov : Public domain */
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#include "Precomp.h"
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#include <stdio.h>
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#ifdef _WIN32
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#include <windows.h>
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#endif
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#include <stdlib.h>
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#include "Alloc.h"
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/* #define _SZ_ALLOC_DEBUG */
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/* use _SZ_ALLOC_DEBUG to debug alloc/free operations */
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#ifdef _SZ_ALLOC_DEBUG
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#include <stdio.h>
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int g_allocCount = 0;
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int g_allocCountMid = 0;
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int g_allocCountBig = 0;
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#define CONVERT_INT_TO_STR(charType, tempSize) \
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unsigned char temp[tempSize]; unsigned i = 0; \
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while (val >= 10) { temp[i++] = (unsigned char)('0' + (unsigned)(val % 10)); val /= 10; } \
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*s++ = (charType)('0' + (unsigned)val); \
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while (i != 0) { i--; *s++ = temp[i]; } \
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*s = 0;
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static void ConvertUInt64ToString(UInt64 val, char *s)
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{
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CONVERT_INT_TO_STR(char, 24);
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}
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#define GET_HEX_CHAR(t) ((char)(((t < 10) ? ('0' + t) : ('A' + (t - 10)))))
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static void ConvertUInt64ToHex(UInt64 val, char *s)
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{
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UInt64 v = val;
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unsigned i;
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for (i = 1;; i++)
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{
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v >>= 4;
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if (v == 0)
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break;
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}
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s[i] = 0;
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do
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{
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unsigned t = (unsigned)(val & 0xF);
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val >>= 4;
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s[--i] = GET_HEX_CHAR(t);
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}
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while (i);
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}
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#define DEBUG_OUT_STREAM stderr
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static void Print(const char *s)
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{
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fputs(s, DEBUG_OUT_STREAM);
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}
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static void PrintAligned(const char *s, size_t align)
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{
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size_t len = strlen(s);
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for(;;)
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{
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fputc(' ', DEBUG_OUT_STREAM);
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if (len >= align)
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break;
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++len;
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}
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Print(s);
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}
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static void PrintLn()
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{
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Print("\n");
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}
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static void PrintHex(UInt64 v, size_t align)
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{
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char s[32];
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ConvertUInt64ToHex(v, s);
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PrintAligned(s, align);
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}
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static void PrintDec(UInt64 v, size_t align)
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{
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char s[32];
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ConvertUInt64ToString(v, s);
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PrintAligned(s, align);
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}
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static void PrintAddr(void *p)
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{
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PrintHex((UInt64)(size_t)(ptrdiff_t)p, 12);
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}
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#define PRINT_ALLOC(name, cnt, size, ptr) \
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Print(name " "); \
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PrintDec(cnt++, 10); \
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PrintHex(size, 10); \
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PrintAddr(ptr); \
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PrintLn();
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#define PRINT_FREE(name, cnt, ptr) if (ptr) { \
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Print(name " "); \
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PrintDec(--cnt, 10); \
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PrintAddr(ptr); \
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PrintLn(); }
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#else
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#define PRINT_ALLOC(name, cnt, size, ptr)
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#define PRINT_FREE(name, cnt, ptr)
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#define Print(s)
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#define PrintLn()
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#define PrintHex(v, align)
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#define PrintAddr(p)
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#endif
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void *MyAlloc(size_t size)
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{
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if (size == 0)
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return NULL;
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PRINT_ALLOC("Alloc ", g_allocCount, size, NULL);
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#ifdef _SZ_ALLOC_DEBUG
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{
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void *p = malloc(size);
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// PRINT_ALLOC("Alloc ", g_allocCount, size, p);
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return p;
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}
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#else
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return malloc(size);
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#endif
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}
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void MyFree(void *address)
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{
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PRINT_FREE("Free ", g_allocCount, address);
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free(address);
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}
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#ifdef _WIN32
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void *MidAlloc(size_t size)
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{
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if (size == 0)
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return NULL;
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PRINT_ALLOC("Alloc-Mid", g_allocCountMid, size, NULL);
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return VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE);
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}
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void MidFree(void *address)
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{
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PRINT_FREE("Free-Mid", g_allocCountMid, address);
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if (!address)
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return;
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VirtualFree(address, 0, MEM_RELEASE);
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}
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#ifdef _7ZIP_LARGE_PAGES
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#ifdef MEM_LARGE_PAGES
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#define MY__MEM_LARGE_PAGES MEM_LARGE_PAGES
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#else
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#define MY__MEM_LARGE_PAGES 0x20000000
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#endif
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extern
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SIZE_T g_LargePageSize;
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SIZE_T g_LargePageSize = 0;
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typedef SIZE_T (WINAPI *GetLargePageMinimumP)(VOID);
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#endif // _7ZIP_LARGE_PAGES
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void SetLargePageSize()
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{
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#ifdef _7ZIP_LARGE_PAGES
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SIZE_T size;
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GetLargePageMinimumP largePageMinimum = (GetLargePageMinimumP)
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GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")), "GetLargePageMinimum");
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if (!largePageMinimum)
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return;
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size = largePageMinimum();
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if (size == 0 || (size & (size - 1)) != 0)
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return;
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g_LargePageSize = size;
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#endif
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}
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void *BigAlloc(size_t size)
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{
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if (size == 0)
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return NULL;
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PRINT_ALLOC("Alloc-Big", g_allocCountBig, size, NULL);
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#ifdef _7ZIP_LARGE_PAGES
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{
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SIZE_T ps = g_LargePageSize;
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if (ps != 0 && ps <= (1 << 30) && size > (ps / 2))
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{
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size_t size2;
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ps--;
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size2 = (size + ps) & ~ps;
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if (size2 >= size)
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{
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void *res = VirtualAlloc(NULL, size2, MEM_COMMIT | MY__MEM_LARGE_PAGES, PAGE_READWRITE);
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if (res)
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return res;
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}
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}
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}
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#endif
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return VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE);
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}
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void BigFree(void *address)
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{
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PRINT_FREE("Free-Big", g_allocCountBig, address);
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if (!address)
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return;
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VirtualFree(address, 0, MEM_RELEASE);
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}
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#endif
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static void *SzAlloc(ISzAllocPtr p, size_t size) { UNUSED_VAR(p); return MyAlloc(size); }
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static void SzFree(ISzAllocPtr p, void *address) { UNUSED_VAR(p); MyFree(address); }
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const ISzAlloc g_Alloc = { SzAlloc, SzFree };
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static void *SzMidAlloc(ISzAllocPtr p, size_t size) { UNUSED_VAR(p); return MidAlloc(size); }
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static void SzMidFree(ISzAllocPtr p, void *address) { UNUSED_VAR(p); MidFree(address); }
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const ISzAlloc g_MidAlloc = { SzMidAlloc, SzMidFree };
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static void *SzBigAlloc(ISzAllocPtr p, size_t size) { UNUSED_VAR(p); return BigAlloc(size); }
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static void SzBigFree(ISzAllocPtr p, void *address) { UNUSED_VAR(p); BigFree(address); }
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const ISzAlloc g_BigAlloc = { SzBigAlloc, SzBigFree };
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/*
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uintptr_t : <stdint.h> C99 (optional)
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: unsupported in VS6
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*/
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#ifdef _WIN32
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typedef UINT_PTR UIntPtr;
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#else
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/*
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typedef uintptr_t UIntPtr;
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*/
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typedef ptrdiff_t UIntPtr;
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#endif
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#define ADJUST_ALLOC_SIZE 0
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/*
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#define ADJUST_ALLOC_SIZE (sizeof(void *) - 1)
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*/
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/*
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Use (ADJUST_ALLOC_SIZE = (sizeof(void *) - 1)), if
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MyAlloc() can return address that is NOT multiple of sizeof(void *).
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*/
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/*
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#define MY_ALIGN_PTR_DOWN(p, align) ((void *)((char *)(p) - ((size_t)(UIntPtr)(p) & ((align) - 1))))
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*/
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#define MY_ALIGN_PTR_DOWN(p, align) ((void *)((((UIntPtr)(p)) & ~((UIntPtr)(align) - 1))))
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#if !defined(_WIN32) && defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200112L)
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#define USE_posix_memalign
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#endif
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#ifndef USE_posix_memalign
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#define MY_ALIGN_PTR_UP_PLUS(p, align) MY_ALIGN_PTR_DOWN(((char *)(p) + (align) + ADJUST_ALLOC_SIZE), align)
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#endif
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/*
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This posix_memalign() is for test purposes only.
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We also need special Free() function instead of free(),
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if this posix_memalign() is used.
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*/
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/*
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static int posix_memalign(void **ptr, size_t align, size_t size)
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{
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size_t newSize = size + align;
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void *p;
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void *pAligned;
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*ptr = NULL;
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if (newSize < size)
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return 12; // ENOMEM
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p = MyAlloc(newSize);
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if (!p)
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return 12; // ENOMEM
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pAligned = MY_ALIGN_PTR_UP_PLUS(p, align);
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((void **)pAligned)[-1] = p;
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*ptr = pAligned;
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return 0;
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}
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*/
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/*
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ALLOC_ALIGN_SIZE >= sizeof(void *)
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ALLOC_ALIGN_SIZE >= cache_line_size
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*/
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#define ALLOC_ALIGN_SIZE ((size_t)1 << 7)
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static void *SzAlignedAlloc(ISzAllocPtr pp, size_t size)
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{
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#ifndef USE_posix_memalign
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void *p;
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void *pAligned;
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size_t newSize;
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UNUSED_VAR(pp);
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/* also we can allocate additional dummy ALLOC_ALIGN_SIZE bytes after aligned
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block to prevent cache line sharing with another allocated blocks */
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newSize = size + ALLOC_ALIGN_SIZE * 1 + ADJUST_ALLOC_SIZE;
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if (newSize < size)
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return NULL;
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p = MyAlloc(newSize);
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if (!p)
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return NULL;
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pAligned = MY_ALIGN_PTR_UP_PLUS(p, ALLOC_ALIGN_SIZE);
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Print(" size="); PrintHex(size, 8);
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Print(" a_size="); PrintHex(newSize, 8);
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Print(" ptr="); PrintAddr(p);
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Print(" a_ptr="); PrintAddr(pAligned);
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PrintLn();
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((void **)pAligned)[-1] = p;
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return pAligned;
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#else
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void *p;
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UNUSED_VAR(pp);
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if (posix_memalign(&p, ALLOC_ALIGN_SIZE, size))
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return NULL;
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Print(" posix_memalign="); PrintAddr(p);
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PrintLn();
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return p;
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#endif
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}
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static void SzAlignedFree(ISzAllocPtr pp, void *address)
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{
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UNUSED_VAR(pp);
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#ifndef USE_posix_memalign
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if (address)
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MyFree(((void **)address)[-1]);
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#else
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free(address);
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#endif
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}
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const ISzAlloc g_AlignedAlloc = { SzAlignedAlloc, SzAlignedFree };
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#define MY_ALIGN_PTR_DOWN_1(p) MY_ALIGN_PTR_DOWN(p, sizeof(void *))
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/* we align ptr to support cases where CAlignOffsetAlloc::offset is not multiply of sizeof(void *) */
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#define REAL_BLOCK_PTR_VAR(p) ((void **)MY_ALIGN_PTR_DOWN_1(p))[-1]
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/*
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#define REAL_BLOCK_PTR_VAR(p) ((void **)(p))[-1]
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*/
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static void *AlignOffsetAlloc_Alloc(ISzAllocPtr pp, size_t size)
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{
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CAlignOffsetAlloc *p = CONTAINER_FROM_VTBL(pp, CAlignOffsetAlloc, vt);
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void *adr;
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void *pAligned;
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size_t newSize;
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size_t extra;
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size_t alignSize = (size_t)1 << p->numAlignBits;
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if (alignSize < sizeof(void *))
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alignSize = sizeof(void *);
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if (p->offset >= alignSize)
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return NULL;
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/* also we can allocate additional dummy ALLOC_ALIGN_SIZE bytes after aligned
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block to prevent cache line sharing with another allocated blocks */
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extra = p->offset & (sizeof(void *) - 1);
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newSize = size + alignSize + extra + ADJUST_ALLOC_SIZE;
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if (newSize < size)
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return NULL;
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adr = ISzAlloc_Alloc(p->baseAlloc, newSize);
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if (!adr)
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return NULL;
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pAligned = (char *)MY_ALIGN_PTR_DOWN((char *)adr +
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alignSize - p->offset + extra + ADJUST_ALLOC_SIZE, alignSize) + p->offset;
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PrintLn();
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Print("- Aligned: ");
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Print(" size="); PrintHex(size, 8);
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Print(" a_size="); PrintHex(newSize, 8);
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Print(" ptr="); PrintAddr(adr);
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Print(" a_ptr="); PrintAddr(pAligned);
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PrintLn();
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REAL_BLOCK_PTR_VAR(pAligned) = adr;
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return pAligned;
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}
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static void AlignOffsetAlloc_Free(ISzAllocPtr pp, void *address)
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{
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if (address)
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{
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CAlignOffsetAlloc *p = CONTAINER_FROM_VTBL(pp, CAlignOffsetAlloc, vt);
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PrintLn();
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Print("- Aligned Free: ");
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PrintLn();
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ISzAlloc_Free(p->baseAlloc, REAL_BLOCK_PTR_VAR(address));
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}
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}
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void AlignOffsetAlloc_CreateVTable(CAlignOffsetAlloc *p)
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{
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p->vt.Alloc = AlignOffsetAlloc_Alloc;
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p->vt.Free = AlignOffsetAlloc_Free;
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}
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