Connectnamedpipe Error 232

Contents Disconnectnamedpipe Createnamedpipea Error_broken_pipe

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack connectnamedpipe error_no_data Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack

Disconnectnamedpipe

Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Named pipe 232

Createnamedpipea

the pipe is being closed up vote 3 down vote favorite 1 Hye i am using a named pipe for rpc, when the server gets an exception writing to the pipe ( for example the client side suddenly closed) I catch the exception

Error_broken_pipe

,call disconnect named pipe and then i try to call connectNamedPipe ,I get 232: pipe is being closed. My question is how to solve this issue ,so after I get an exception to start listening on the pipe again windows named-pipes share|improve this question edited Nov 6 '13 at 5:42 Mat 135k20234273 asked Oct 28 '13 at 13:50 user2757455 354 add a comment| 1 Answer 1 active oldest votes up vote 0 down vote accepted Sorry, but don't know if it is too late. This thread seems setnamedpipehandlestate to be quite old. But just for the benefits of those who are like me who Google this problem here. The problem the thread starter faced is simple, THE CLIENT CANNOT RECONNECT TO THE SAME PIPE AFTER IT IS DISCONNECTED! So in the event that the pipe on the client side is suddenly closed, the pipe on the server side is dead as well. If you want to reconnect, the server needs to provide another CreateNamedPipe function to get the new connection and ask the client to try it. The key is the understanding of pipes. share|improve this answer answered Aug 19 '14 at 20:35 Leon 585 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using Facebook Sign up using Email and Password Post as a guest Name Email Post as a guest Name Email discard By posting your answer, you agree to the privacy policy and terms of service. Not the answer you're looking for? Browse other questions tagged windows named-pipes or ask your own question. asked 2 years ago viewed 812 times active 2 years ago Related 2How to get the length of data to be read (reliably) in named pipes?16C++: Implementing Named Pipes using the Win32 API1Can a named-pipe client write to multiple instances?5Problem reconnecting to the named pipe4Duplex named pipe hangs on a certain write18How slow are TCP sockets compared to named pipes on Windows for localhost IPC?3How to gracefully stop a server process which is listening on a pipe

User the pipe is being closed List Committer List Help Tracker Documentation Tracker windows named pipe example Development Report Tracker Problem Issue14725 classification Title: test_multiprocessing failure getoverlappedresult under Windows Type: behavior Stage: Components: Library (Lib), Tests, Windows Versions: Python 3.3 process Status: closed http://stackoverflow.com/questions/19636548/named-pipe-232-the-pipe-is-being-closed Resolution: fixed Dependencies: Superseder: Assigned To: Nosy List: pitrou, python-dev, sbt Priority: normal Keywords: Created on 2012-05-04 22:54 by pitrou, last changed 2012-05-08 16:06 by sbt. This issue is now closed. Messages (4) http://bugs.python.org/issue14725 msg159973 - (view) Author: Antoine Pitrou (pitrou) * Date: 2012-05-04 22:54 There was this failure on one of the XP buildbots: Process Process-269: Traceback (most recent call last): File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows\build\lib\multiprocessing\process.py", line 258, in _bootstrap self.run() File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows\build\lib\multiprocessing\process.py", line 95, in run self._target(*self._args, **self._kwargs) File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows\build\lib\test\test_multiprocessing.py", line 1980, in _listener new_conn = l.accept() File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows\build\lib\multiprocessing\connection.py", line 444, in accept c = self._listener.accept() File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows\build\lib\multiprocessing\connection.py", line 624, in accept ov = _winapi.ConnectNamedPipe(handle, overlapped=True) BrokenPipeError: [Error 232] The pipe is being closed ====================================================================== ERROR: test_pickling (test.test_multiprocessing.WithProcessesTestPicklingConnections) ---------------------------------------------------------------------- Traceback (most recent call last): File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows\build\lib\multiprocessing\connection.py", line 308, in _

van GoogleInloggenVerborgen veldenZoeken naar groepen of berichten

the network. Solution Create a P/Invoke wrapper class for the named-pipe APIs in Kernel32.dll. You can then create a managed client and managed server class to work with named pipes. Figure shows the named-pipe interop wrappers in a class called NamedPipeInterop. NamedPipeInterop class namespace NamedPipes { ///

/// Imported named-pipe entry points for P/Invoke into native code ///

public class NamedPipeInterop { // #defines related to named-pipe processing public const int PIPE_ACCESS_OUTBOUND = 0x00000002; public const int PIPE_ACCESS_DUPLEX = 0x00000003; public const int PIPE_ACCESS_INBOUND = 0x00000001; public const int PIPE_WAIT = 0x00000000; public const int PIPE_NOWAIT = 0x00000001; public const int PIPE_READMODE_BYTE = 0x00000000; public const int PIPE_READMODE_MESSAGE = 0x00000002; public const int PIPE_TYPE_BYTE = 0x00000000; public const int PIPE_TYPE_MESSAGE = 0x00000004; public const int PIPE_CLIENT_END = 0x00000000; public const int PIPE_SERVER_END = 0x00000001; public const int PIPE_UNLIMITED_INSTANCES = 255; public const uint NMPWAIT_WAIT_FOREVER = 0xffffffff; public const uint NMPWAIT_NOWAIT = 0x00000001; public const uint NMPWAIT_USE_DEFAULT_WAIT = 0x00000000; public const uint GENERIC_READ = (0x80000000); public const uint GENERIC_WRITE = (0x40000000); public const uint GENERIC_EXECUTE = (0x20000000); public const uint GENERIC_ALL = (0x10000000); public const int CREATE_NEW = 1; public const int CREATE_ALWAYS = 2; public const int OPEN_EXISTING = 3; public const int OPEN_ALWAYS = 4; public const int TRUNCATE_EXISTING = 5; public static IntPtr INVALID_HANDLE_VALUE = (IntPtr)(-1); public const int ERROR_PIPE_BUSY = 231; public const int ERROR_NO_DATA = 232; public const int ERROR_PIPE_NOT_CONNECTED = 233; public const int ERROR_MORE_DATA = 234; public const int ERROR_PIPE_CONNECTED = 535; public const int ERROR_PIPE_LISTENING = 536; [DllImport("kernel32.dll", SetLastError = true)] public static extern bool CallNamedPipe( string lpNamedPipeName, byte[] lpInBuffer, uint nInBufferSize, byte[] lpOutBuffer, uint nOutBufferSize, byte[] lpBytesRead, uint nTimeOut); [DllImport("kernel32.dll", SetLastError = true)] public static extern bool CloseHandle(SafeFileHandle hObject); [DllImport("kernel32.dll", SetLastError = true)] public static extern bool ConnectNamedPipe( SafeFileHandle hNamedPipe,// Handle to named pipe IntPtr lpOverlapped // Overlapped structure ); [DllImport("kernel32.dll", SetLastError = true)] public static extern SafeFileHandle CreateNamedPipe( String lpName, // Pipe name uint dwOpenMode, // Pipe open mode uint dwPipeMode, // Pipe-specific modes uint nMaxInstances, // M