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Check if named pipe exists

Posted on 2010-08-30
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Last Modified: 2013-12-04
Hi,

How to check if named pipe exists? (CreateNamedPipe is not called)?
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Question by:lavitz
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pgnatyuk earned 500 total points
ID: 33561736
The file  exists or not.
Check if that's what you need:
MSDN. http://msdn.microsoft.com/en-us/library/aa365592(VS.85).aspx
http://msdn.microsoft.com/en-us/library/aa365592(VS.85).aspx

There is a sample with a loop waiting for a named pipe:
LPTSTR lpszPipename = TEXT("\\\\.\\pipe\\mynamedpipe");
HANDLE hPipe;

while (1)
{
   hPipe = CreateFile( lpszPipename,  GENERIC_READ | GENERIC_WRITE,  0,  
         NULL, OPEN_EXISTING,   0, NULL);          
    if (hPipe != INVALID_HANDLE_VALUE)
         break;
 
    if (GetLastError() != ERROR_PIPE_BUSY)
    {
         _tprintf( TEXT("Could not open pipe. GLE=%d\n"), GetLastError() );
         return -1;
    }

   // wait, etc.
}
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Author Closing Comment

by:lavitz
ID: 33575869
Ok, if there is no other way
0

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