/// <summary>
/// Create a named pipe instance.
/// </summary>
/// <param name="pipeName">Local name (the part after \\.\pipe\)</param>
public static NamedPipeStream Create(string pipeName, ServerMode mode)
{
IntPtr handle = IntPtr.Zero;
string name = @"\\.\pipe\" + pipeName;
handle = CreateNamedPipe(
name,
(uint)mode,
PIPE_TYPE_BYTE | PIPE_WAIT,
PIPE_UNLIMITED_INSTANCES,
0, // outBuffer,
1024, // inBuffer, NMPWAIT_WAIT_FOREVER,
IntPtr.Zero);
if (handle.ToInt32() == INVALID_HANDLE_VALUE)
{
throw new Win32Exception("Error creating named pipe " + name + " . Internal error: " + Marshal.GetLastWin32Error().ToString());
}
// Set members persistently...
NamedPipeStream self = new NamedPipeStream();
self._handle = handle;
switch (mode)
{
case ServerMode.InboundOnly:
self._mode = FileAccess.Read;
break;
case ServerMode.OutboundOnly:
self._mode = FileAccess.Write;
break;
case ServerMode.Bidirectional:
self._mode = FileAccess.ReadWrite;
break;
}
return(self);
}
/// <summary>
/// Test / demo code:
/// </summary>
/// <param name="args"></param>
public static void Main(string[] args)
{
if (args.Length == 0)
{
/*
* Server-side sample code:
*/
NamedPipeStream stream = NamedPipeStream.Create("testpipe", NamedPipeStream.ServerMode.Bidirectional);
StreamReader sr = new StreamReader(stream, Encoding.Unicode);
Console.WriteLine("Listening...");
do
{
stream.Listen();
do
{
bool dataRead = false;
while (stream.DataAvailable)
{
try
{
string s = sr.ReadLine();
if (s != null && s.Length > 0)
{
StreamWriter sw = new StreamWriter(stream, Encoding.Unicode);
sw.WriteLine(s);
sw.Flush();
Console.WriteLine(s);
dataRead = true;
}
}
catch { }
}
System.Threading.Thread.Sleep(dataRead ? 50 : 1000);
} while (stream.IsConnected);
} while (true);
}
else
{
/*
* // Client side sample code:
*/NamedPipeStream stream = new NamedPipeStream(@"\\.\pipe\testpipe", FileAccess.ReadWrite);
StreamWriter sw = new StreamWriter(stream, Encoding.Unicode);
sw.AutoFlush = true;
for (int i = 0; i < 500; i++)
{
sw.WriteLine("Hello world {0}", i);
System.Threading.Thread.Sleep(1000);
if (stream.DataAvailable)
{
StreamReader sr = new StreamReader(stream);
Console.WriteLine(sr.ReadLine());
}
}
sw.Write("Final line");
sw.Close();
}
}
/// <summary>
/// Test / demo code:
/// </summary>
/// <param name="args"></param>
public static void Main(string[] args)
{
if (args.Length == 0)
{
/*
* Server-side sample code:
*/
NamedPipeStream stream = NamedPipeStream.Create("testpipe", NamedPipeStream.ServerMode.Bidirectional);
StreamReader sr = new StreamReader(stream,Encoding.Unicode);
Console.WriteLine("Listening...");
do
{
stream.Listen();
do
{
bool dataRead = false;
while (stream.DataAvailable)
{
try
{
string s = sr.ReadLine();
if (s != null && s.Length > 0)
{
StreamWriter sw = new StreamWriter(stream, Encoding.Unicode);
sw.WriteLine(s);
sw.Flush();
Console.WriteLine(s);
dataRead = true;
}
}
catch { }
}
System.Threading.Thread.Sleep(dataRead ? 50 : 1000);
} while (stream.IsConnected);
} while (true);
}
else
{
/*
// Client side sample code:
*/ NamedPipeStream stream = new NamedPipeStream(@"\\.\pipe\testpipe", FileAccess.ReadWrite);
StreamWriter sw = new StreamWriter(stream, Encoding.Unicode);
sw.AutoFlush = true;
for (int i = 0; i < 500; i++)
{
sw.WriteLine("Hello world {0}", i);
System.Threading.Thread.Sleep(1000);
if (stream.DataAvailable)
{
StreamReader sr = new StreamReader(stream);
Console.WriteLine(sr.ReadLine());
}
}
sw.Write("Final line");
sw.Close();
}
}
/// <summary>
/// Create a named pipe instance.
/// </summary>
/// <param name="pipeName">Local name (the part after \\.\pipe\)</param>
public static NamedPipeStream Create(string pipeName, ServerMode mode)
{
IntPtr handle = IntPtr.Zero;
string name = @"\\.\pipe\" + pipeName;
handle = CreateNamedPipe(
name,
(uint)mode,
PIPE_TYPE_BYTE | PIPE_WAIT,
PIPE_UNLIMITED_INSTANCES,
0, // outBuffer,
1024, // inBuffer, NMPWAIT_WAIT_FOREVER,
IntPtr.Zero);
if (handle.ToInt32() == INVALID_HANDLE_VALUE)
{
throw new Win32Exception("Error creating named pipe " + name + " . Internal error: " + Marshal.GetLastWin32Error().ToString());
}
// Set members persistently...
NamedPipeStream self = new NamedPipeStream();
self._handle = handle;
switch (mode)
{
case ServerMode.InboundOnly:
self._mode = FileAccess.Read;
break;
case ServerMode.OutboundOnly:
self._mode = FileAccess.Write;
break;
case ServerMode.Bidirectional:
self._mode = FileAccess.ReadWrite;
break;
}
return self;
}
