private void ApplyUnmanagedMem()
{
IntPtr ptr = Marshal.AllocHGlobal(100 * sizeof(int));
int value = LibDefine.unmanaged_add(ptr, 100);
print("ApplyUnmanagedMem: " + value);
Marshal.FreeHGlobal(ptr);
}
/// <summary>
/// 托管内存转非托管内存
/// </summary>
private void TransferUnmanagedMem()
{
int[] intArray = new int[100]; //c# managed memory
GCHandle intArrayUnmanaged = GCHandle.Alloc(intArray, GCHandleType.Pinned); //Pinned: 固定内存地址 // c# unmanaged memory
int value = LibDefine.unmanaged_add(intArrayUnmanaged.AddrOfPinnedObject(), 100);
print("TransferUnmanagedMem: " + value);
intArrayUnmanaged.Free(); // return back to managed memory
}
/// <summary>
/// 非托管内存转托管内存
/// </summary>
private void TransferManagedMem()
{
IntPtr ptr = IntPtr.Zero;
int value = LibDefine.managed_add(out ptr, 100);
print("TransferManagedMem: " + value);
int[] managedIntPtr = new int[100];
Marshal.Copy(ptr, managedIntPtr, 0, 100 * sizeof(int));
Marshal.FreeHGlobal(ptr); // release c++ memory
}
private void Basic()
{
int result = LibDefine.add(10, 14);
print("Basic: " + result);
}
