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Diffstat (limited to 'Common/Alloc.cpp')
-rwxr-xr-xCommon/Alloc.cpp15
1 files changed, 15 insertions, 0 deletions
diff --git a/Common/Alloc.cpp b/Common/Alloc.cpp
index e2b8c3d2..e4fc6a81 100755
--- a/Common/Alloc.cpp
+++ b/Common/Alloc.cpp
@@ -62,6 +62,16 @@ void MidFree(void *address) throw()
::VirtualFree(address, 0, MEM_RELEASE);
}
+
+#ifndef MEM_LARGE_PAGES
+#define _7ZIP_NO_LARGE_PAGES
+#endif
+
+// define _7ZIP_NO_LARGE_PAGES if you don't need LARGE_PAGES support
+// #define _7ZIP_NO_LARGE_PAGES
+
+
+#ifndef _7ZIP_NO_LARGE_PAGES
static SIZE_T g_LargePageSize =
#ifdef _WIN64
(1 << 21);
@@ -70,9 +80,11 @@ static SIZE_T g_LargePageSize =
#endif
typedef SIZE_T (WINAPI *GetLargePageMinimumP)();
+#endif
bool SetLargePageSize()
{
+ #ifndef _7ZIP_NO_LARGE_PAGES
GetLargePageMinimumP largePageMinimum = (GetLargePageMinimumP)
::GetProcAddress(::GetModuleHandle(TEXT("kernel32.dll")), "GetLargePageMinimum");
if (largePageMinimum == 0)
@@ -81,6 +93,7 @@ bool SetLargePageSize()
if (size == 0 || (size & (size - 1)) != 0)
return false;
g_LargePageSize = size;
+ #endif
return true;
}
@@ -93,6 +106,7 @@ void *BigAlloc(size_t size) throw()
fprintf(stderr, "\nAlloc_Big %10d bytes; count = %10d", size, g_allocCountBig++);
#endif
+ #ifndef _7ZIP_NO_LARGE_PAGES
if (size >= (1 << 18))
{
void *res = ::VirtualAlloc(0, (size + g_LargePageSize - 1) & (~(g_LargePageSize - 1)),
@@ -100,6 +114,7 @@ void *BigAlloc(size_t size) throw()
if (res != 0)
return res;
}
+ #endif
return ::VirtualAlloc(0, size, MEM_COMMIT, PAGE_READWRITE);
}