public string ReadMessage()
{
if (_handelMailslot == null)
{
throw new NullReferenceException("Не инициализирована работа с mailslot");
}
int messageBytes;
int bytesRead;
int messages;
if (!MailSlotFunctions.GetMailslotInfo(_handelMailslot, IntPtr.Zero, out messageBytes, out messages, IntPtr.Zero))
{
return("");
}
if (messageBytes == -1)
{
return("");
}
var bBuffer = new byte[messageBytes];
if (!MailSlotFunctions.ReadFile(_handelMailslot, bBuffer, messageBytes, out bytesRead, IntPtr.Zero) || bytesRead == 0)
{
return("");
}
string result = Encoding.Unicode.GetString(bBuffer);
return(result);
}
public Int32 CreateMailSlot(string mailslotName)
{
string fullMailslotName = $@"\\.\mailslot\{mailslotName}";
IntPtr handle = MailSlotFunctions.CreateMailslot(fullMailslotName, 0, 0, IntPtr.Zero);
_handelMailslot = handle;
return(handle.ToInt32());
}
public int SendMessage(string message)
{
if (_handelMailslot == null)
{
throw new NullReferenceException("Не инициализировано подключение к mailslot");
}
Byte[] bMessage = Encoding.Unicode.GetBytes(message);
Int32 writenBytes;
bool isSucceeded = MailSlotFunctions.WriteFile(_handelMailslot, bMessage, bMessage.Length, out writenBytes, IntPtr.Zero);
return((int)writenBytes);
}
public Int32 OpenMailslot(string mailslotName, string remoteComputer = ".")
{
string fullMailslotName = $@"\\{remoteComputer}\mailslot\{mailslotName}";
IntPtr handle = MailSlotFunctions.CreateFile(
fullMailslotName,
DesiredAccess.GenericWrite,
ShareMode.FILE_SHARE_READ,
IntPtr.Zero,
CreationDisposition.OPEN_EXISTING,
0,
IntPtr.Zero);
_handelMailslot = handle;
return(handle.ToInt32());
}