3f4
Subj : Re: thread log file
To   : comp.programming.threads
From : azb123
Date : Tue Aug 09 2005 01:31 am


Jason Jesso wrote:
> I have a system with multiple threads.  Each thread outputs to a log
> file when it starts:
>
> "StartThread-N" where N is the Thread id
>
> When each thread exists it outputs
>
> "StopThread-N"
>
> What's the most efficient way of reporting which thread have not
> stopped, assuming very large log files?

Hi Jason,

how about a little bit of awk (not tested):

/^StartThread/ {
   sub(/StartThread-/,"",$1);
   if (status[$1] == "started")
      printf("Nesting error for thread %s\n",$1);
   else
      status[$1] = "started";
}

/^StopThread/ {
   sub(/StopThread-/,"",$1);
   if (status[$1] == "stopped")
      printf("Nesting error for thread %s\n",$1);
   else
      status[$1] = "stopped";
}

END {
   for (thread in status)
      if (status[thread] == "started")
          printf("Thread %s has not yet stopped.\n",thread);
}

.

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