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POWaitNamedPipe just hangs
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copied!<p>I'm having trouble with the WaitNamedPipe function hanging. ...this the portion of my code relevant to the problem. I created a process, then a pipe, and the function WaitNamedPipe seems to be stuck on FALSE and therefore hangs. The function waitnamedpipe waits for the CC process to initiate. </p> <pre><code>PROCESS_INFORMATION po; STARTUPINFO s; GetStartupInfo (&s); if(CreateProcess ("c:\\s2.exe", NULL, NULL, NULL, false, 0, NULL, NULL, &s, &po) == FALSE) { printf("Error %d starting CC\n", GetLastError()); exit(-1); } HANDLE pipe=CreateNamedPipe ("\\.\pipe\CC-"+po.dwProcessId, 0x00000003, 0x40000000, 0x00080000L, 0x00000004, 128, 0, NULL); while (WaitNamedPipe ("\\.\pipe\CC-"+po.dwProcessId, INFINITE) == FALSE ) Sleep (300); </code></pre> <p>*edit I changed it up some..However it still hangs</p> <pre><code>PROCESS_INFORMATION po; STARTUPINFO s; GetStartupInfo (&s); if(CreateProcess ("c:\\s2.exe", NULL, NULL, NULL, false, 0, NULL, NULL, &s, &po) == FALSE) { printf("Error %d starting CC\n", GetLastError()); exit(-1); } HANDLE pipe=CreateNamedPipe(pipe_name, 0x00000003, FILE_FLAG_FIRST_PIPE_INSTANCE, PIPE_UNLIMITED_INSTANCES,128, 128, 0, NULL); while(WaitNamedPipe(pipe_name, INFINITE)==FALSE) Sleep(300); HANDLE CC = CreateFile (pipe_name, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); bool fConnected = ConnectNamedPipe(pipe, NULL) ? TRUE : (GetLastError() == ERROR_PIPE_CONNECTED); if(fConnected) printf("true"); else printf("false"); </code></pre>

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