Beispiel #1
0
        internal static unsafe bool AllocateMemory(UIntPtr startAddr,
                                                   UIntPtr size)
        {
            VTable.Deny(inAllocator);
            inAllocator = true;
            VTable.Assert(PageTable.PageAligned(startAddr));
            VTable.Assert(PageTable.PageAligned(size));

#if SINGULARITY_KERNEL
            UIntPtr addr = Sing_MemoryManager.KernelExtend(
                startAddr, Sing_MemoryManager.PagesFromBytes(size),
                Process.kernelProcess, PageType.Unknown);
#elif SINGULARITY_PROCESS
            UIntPtr addr = PageTableService.AllocateExtend(startAddr, size);
#endif
            inAllocator = false;
            if (addr != UIntPtr.Zero)
            {
                Util.MemClear(addr, size);
                return(true);
            }
            return(false);
        }