[Kst] [Bug 85211] New: kst consumes 100% cpu when plotting data with missing secondary files

[Matthew Truch]

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http://bugs.kde.org/show_bug.cgi?id=85211      
           Summary: kst consumes 100% cpu when plotting data with missing
                    secondary files
           Product: kst
           Version: unspecified
          Platform: RedHat RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: kst kde org
        ReportedBy: matt truch net


Version:           0.98 (using KDE KDE 3.2.1)
Installed from:    RedHat RPMs
OS:                Linux

When plotting data (from a dirfile) where one (or more) of the vectors is derived and requires a secondary file (for example, a lookup table), and the secondary file is non-existant, kst displays wrong data (zeros), and consumes all the cpu.  

How to reproduce:  Get dirfile data where at least one vector depends on an external file, and delete (or move) the external file.  Plot that vector vs. INDEX.

Expected behavior:  kst at the very least shouldn't consume all the cpu, and probably should spit out an error about the datasource being invalid.