internal static extern int MSync(IntPtr addr, ulong len, MemoryMappedSyncFlags flags);
internal static extern int MSync(IntPtr addr, ulong len, MemoryMappedSyncFlags flags);
internal static extern int msync(IntPtr __addr, size_t __len, MemoryMappedSyncFlags __flags);
internal static extern int msync(IntPtr addr, size_t len, MemoryMappedSyncFlags flags);
internal static extern int msync(IntPtr __addr, size_t __len, MemoryMappedSyncFlags __flags);