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[Project64] Be able to correctly get old protection from ProtectMemory

This commit is contained in:
zilmar 2016-01-17 16:55:44 +11:00
parent ec03eb642a
commit cbd1f6760f
1 changed files with 18 additions and 0 deletions
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18
Source/Common/MemoryManagement.cpp
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@ -16,6 +16,20 @@ static bool TranslateFromMemProtect(MEM_PROTECTION memProtection, int & OsMemPro
return true;
}
static bool TranslateToMemProtect(int OsMemProtection, MEM_PROTECTION & memProtection)
{
switch (OsMemProtection)
{
case PAGE_NOACCESS: memProtection = MEM_NOACCESS; break;
case PAGE_READONLY: memProtection = MEM_READONLY; break;
case PAGE_READWRITE: memProtection = MEM_READWRITE; break;
case PAGE_EXECUTE_READWRITE: memProtection = MEM_EXECUTE_READWRITE; break;
default:
return false;
}
return true;
}
void* AllocateAddressSpace(size_t size)
{
return VirtualAlloc(NULL, size, MEM_RESERVE | MEM_TOP_DOWN, PAGE_NOACCESS);
@ -53,6 +67,10 @@ bool ProtectMemory(void* addr, size_t size, MEM_PROTECTION memProtection, MEM_PR
BOOL res = VirtualProtect(addr, size, OsMemProtection, &OldOsProtect);
if (OldProtect != NULL)
{
if (!TranslateToMemProtect(OldOsProtect, *OldProtect))
{
return NULL;
}
}
return res != 0;
}