Databases
StackOverflow2013
Postsdbo
POWaitNamedPipe just hangs
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POWaitNamedPipe just hangs
    primarykey
    data
    text
    <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 (&amp;s); if(CreateProcess ("c:\\s2.exe", NULL, NULL, NULL, false, 0, NULL, NULL, &amp;s, &amp;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 (&amp;s); if(CreateProcess ("c:\\s2.exe", NULL, NULL, NULL, false, 0, NULL, NULL, &amp;s, &amp;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>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USKate Gregory
    1. USJake
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POWaitNamedPipe just hangs
      1. This table or related slice is empty.
      1. VTUpMod
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload