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PONSIS ExecDos plug-in - IsDone function works on some computers but not others
 

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    <p>I have an NSIS installer that uses the <a href="http://nsis.sourceforge.net/ExecDos_plug-in" rel="nofollow" title="ExecDos">ExecDOS</a> plug-in to call a command line tool that runs SQL scripts. ExecDos is called in async mode and I then loop around updating a progress bar and calling the IsDone function until the command line tool finishes.</p> <p>The problem I am having is that on some computers the IsDone check is wrongly reporting the process as finished when it is in fact still running and so it continues on in the background after the installer has finished. I cannot find any commonality between the computers it doesn't work on so I am hoping someone has some ideas or can spot an error in my code.</p> <pre><code>Function UpdateDatabase !insertmacro SetBannerText "Updating database" 0 0 !insertmacro Log "About to update the database" StrCpy $UpdateDatabase_PreviousScriptNumber 0 SetShellVarContext all Push "ExecDos::End" # Add a marker for the loop to test for. ExecDos::exec /NOUNLOAD /ASYNC '"$ComSpec" /S /C ""$INSTDIR\Database\Tool\DatabaseResetTool.Console.exe" -sp="$INSTDIR\Database\Scripts" -cs="Data Source=$DatabaseServer;Initial Catalog=$Database;User ID=sa;Password=*********;Persist Security Info=true;MultipleActiveResultSets=True;Language=English" -eoe"' '' '$APPDATA\Company\$ApplicationPrefix\Database Update.log' Pop $DatabaseUpdate_ProcessHandle Loop: ExecDos::isdone /NOUNLOAD $DatabaseUpdate_ProcessHandle Pop $DatabaseUpdate_Done StrCpy $0 "$APPDATA\Company\$ApplicationPrefix\Database Update.log" StrCpy $1 "$TEMP\Database Update.log" StrCpy $2 0 System::Call 'kernel32::CopyFile(t r0, t r1, b r2) ?e' ${LineRead} "$TEMP\Database Update.log" "-2" $DatabaseUpdate_LogFileLine ${StrTok} $DatabaseUpdate_LogFileLineEndPart $DatabaseUpdate_LogFileLine "(" "L" "1" ${StrTok} $DatabaseUpdate_ScriptNumber $DatabaseUpdate_LogFileLineEndPart "/" "0" "1" ${StrTok} $DatabaseUpdate_ScriptCountUnprocessed $DatabaseUpdate_LogFileLineEndPart "/" "1" "1" ${StrTok} $DatabaseUpdate_ScriptCount $DatabaseUpdate_ScriptCountUnprocessed ")" "0" "1" ${If} $DatabaseUpdate_ScriptNumber != "" ${AndIf} $DatabaseUpdate_ScriptCount != "" FloatOp::D $DatabaseUpdate_ScriptNumber $DatabaseUpdate_ScriptCount FloatOp::M $0 100 ${If} $UpdateDatabase_PreviousScriptNumber != $DatabaseUpdate_ScriptNumber !insertmacro SetBannerText "Updating database$\r$\n$\r$\nRunning script $DatabaseUpdate_ScriptNumber of $DatabaseUpdate_ScriptCount" 0 $0 StrCpy $UpdateDatabase_PreviousScriptNumber $DatabaseUpdate_ScriptNumber ${EndIf} ${EndIf} Sleep 200 StrCmp $DatabaseUpdate_Done "0" Loop Done Done: Push "$TEMP\Database Update.log" Push "exception" Call FileSearch Pop $0 Pop $1 ${If} $0 != "0" StrCpy $InstallError 1 !insertmacro LogError "Database update failed. Please review the 'Database Update.log' to see the detail error message" "" ${EndIf} FunctionEnd </code></pre>
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    1. COWhen it breaks out of the loop, is $DatabaseUpdate_Done 1 or -1 ?
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