public MemoryBlock(UIntPtr size)
{
size = (UIntPtr)(((long)size + 0xFFFFL) & ~0xFFFFL);
this.size = size;
location = VirtualAlloc((IntPtr)0, size, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
security = MemoryBlockSecurity.ReadWrite;
}
private static uint GetSecurityFlags(MemoryBlockSecurity mbs)
{
switch(mbs)
{
case MemoryBlockSecurity.ReadOnly: return PAGE_READONLY;
case MemoryBlockSecurity.ReadWrite: return PAGE_READWRITE;
case MemoryBlockSecurity.ExecuteRead: return PAGE_EXECUTE_READ;
case MemoryBlockSecurity.ExecuteReadWrite: return PAGE_EXECUTE_READWRITE;
default: goto case MemoryBlockSecurity.ReadWrite;
}
}