public void TestFromInt64And32ToPtrAndBack()
{
var ipc = new IpcData();
var random = new Random();
var m = (int)(random.NextDouble() * int.MaxValue);
var n = (long)(random.NextDouble() * long.MaxValue);
var uuid = ipc.Guid;
ipc.Add(m);
ipc.Add(n);
var payload = ipc.GetPtr();
var dataBlockSize = ipc.GetSize();
var byteArray = new byte[dataBlockSize];
System.Runtime.InteropServices.Marshal.Copy(payload, byteArray, 0, dataBlockSize);
var ipc2 = new IpcData(byteArray);
Assert.AreEqual(uuid, ipc2.Guid);
Assert.AreEqual(m, ipc2.Get<int>(0));
Assert.AreEqual(n, ipc2.Get<long>(1));
}
/// <summary>
/// Send a message as a reconstructed string.
/// </summary>
/// <param name="msg">The IpcData we want to send.</param>
/// <returns>The IpcData response data</returns>
public IpcData Send( IpcData msg )
{
// look for the listener.
var hWindow = ConnectedWindow;
if (IntPtr.Zero == hWindow)
{
return null;
}
// the message we want to send.
var cds = new Copydatastruct
{
dwData = (IntPtr)MessageType.Copy, // copy message...
cbData = msg.GetSize(),
lpData = msg.GetPtr()
};
// open the shared memory that should have been created.
using (var mmf = MemoryMappedFile.CreateNew( msg.Guid, 10000))
{
// cast to IntPtr because we know it is not null.
if (0 == (int) SendMessage( hWindow, WmCopyData, IntPtr.Zero, ref cds))
{
return null;
}
// open the shared memory that should have been created.
using (var mmfvs = mmf.CreateViewStream())
{
using (var reader = new BinaryReader(mmfvs))
{
// read the first 4 bytes for the size.
var dataSize = BitConverter.ToInt32( reader.ReadBytes( sizeof(int)), 0 );
// all the byes
var bytes = reader.ReadBytes( dataSize );
// parse the response data into an IpcData
return new IpcData( bytes );
}
}
}
}
public void TestFromInt32ToPtrAndBack()
{
var ipc = new IpcData();
var uuid = ipc.Guid;
var random = new Random();
var n = (Int32)random.Next(0, Int32.MaxValue);
ipc.Add(Int32.MaxValue);
ipc.Add(n);
var payload = ipc.GetPtr();
var dataBlockSize = ipc.GetSize();
var byteArray = new byte[dataBlockSize];
System.Runtime.InteropServices.Marshal.Copy(payload, byteArray, 0, dataBlockSize);
var ipc2 = new IpcData(byteArray);
Assert.AreEqual(uuid, ipc2.Guid);
Assert.AreEqual(Int32.MaxValue, ipc2.Get<Int32>(0));
Assert.AreEqual(n, ipc2.Get<Int32>(1));
}