the script hangs very often while reading lscm command's stderr
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I'm developing a script for my customer to automate following operation:
1. Get all file list in the scm load directory 2. For each file, get property by using scm command (lscm property get) If succeed, execute some operation using this property If failure, show scm command's error message to console & skip next file My script works, but it hangs up very often while reading stderr of scm command. To detect problem, I made simple script: 1. execute "lscm property get" to a file few times. - lscm command always fail because the file does not have the property - read stderr of the command and write those messages to console 2. stop scm daemon This script also hang up every 1 time to 2 execution. What's wrong with my script? Here is the script(VBScipt). It works - Windows XP SP3 - RTC3.0.13 ------------------------------------------------------------------------------------------- Option Explicit Dim objShell Set objShell = CreateObject("WScript.Shell") Dim objFSO Set objFSO = CreateObject("Scripting.FileSystemObject") ' Copy Stream Sub CopyStream(objSrcStream, objDestStream) Do While (Not objSrcStream.AtEndOfStream) objDestStream.WriteLine(objSrcStream.ReadLine) Loop End Sub Sub Main() ' Change current directory to sandbox objShell.CurrentDirectory="C:\work\workspace" ' Get property Dim strCmd strCmd = "cmd /c lscm.bat property get ""Prop"" ""TestProject/bin/test/Sample.class"" -r https://<rtc-server>:9443/ccm -u user -P password" Dim i Do While i < 10 ' Execute lscm command Dim objExec Set objExec = objShell.Exec(strCmd) ' Set objExec = objShell.Exec(strCmd & " >c:\temp\stdout.txt") ' Trial-1: Redirect StdOut to file Do While objExec.Status = 0 WScript.Sleep 100 Loop ' Read error message If (objExec.ExitCode <> 0 ) Then ' objExec.StdIn.Close ' Trial-2: Close StdIn ' Call CopyStream(objExec.StdOut, WScript.StdOut) ' Trial-3: Read StdOut Call CopyStream(objExec.StdErr, WScript.StdErr) ' <--- Script hangs up here End If i = i + 1 Loop 'Stop daemon strCmd = "scm.exe daemon stop C:\work\workspace" Set objExec = objShell.Exec(strCmd) Do While objExec.Status = 0 WScript.Sleep 100 Loop WScript.StdOut.WriteLine("Complete.") End Sub Call Main() ------------------------------------------- In this script I tried some code such as: - redirect scm command stdout to file - close stdin before reading stderr - read stdout before reading stderr but all code doesn't solve the problem. The script still hangs up. |
2 answers
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Hi,
This problem sounds to be similar to Test Failure (N20090807-1017): com.ibm.team.filesystem.cli.tests.BasicTests.testRuns (89545). As specified in one of the options in Comment # 3 of the workitem, can you please try starting the daemon before running lscm. Thanks, Sridevi |
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Karl Weinert (2.0k●5●27●36)
| answered Jun 11 '12, 4:33 p.m.
JAZZ DEVELOPER edited Jun 11 '12, 5:13 p.m.
There seems to be something going on with the stop and restart of the daemon.
'Stop daemon strCmd = "scm.exe daemon stop C:\work\workspace" Set objExec = objShell.Exec(strCmd) Removing that part of the script allows it to run each time. Edit: I also found this post which appears to be related https://jazz.net/forum/questions/77400/calling-lscmbat-from-a-build-script-causes-a-hang |
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