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Reading and printing log file created for a calibre process using skill

CG20240827312

Hi , iam running a calibredrv process using skill using ipcBeginProcess and storing the output in a log file. I want to print licences in use message if "licences occupied message displays in log file. Iam not able to read the log file fwith my following code as i guess the ipcProcess stops everything else the code tries to read the log file before it starts. 

loc=[path]

changeWorkingDir(loc)

funstr="calibredrv [ctrl file] > out.log 2>&1 cellname.gds "

ipcBeginProcess(funstr)

unless(ipcBeginProcess(funstr)

file =infile("out.log")

while(gets(line file

if(rexMatchp("Warning :All Licence In Use" line) then

print("waiting for licence")

)

)

)

The calibre command works fine only issue is with reading the log file. 

  • Hi,

    You should try a different approach :
    You are starting a child process and reading its log direcly.
    At the time you read the log, your child process might not even be running yet.

    A solution could be to parse the data as it comes from the process :

    procedure( custom_calibre_run ( run_dir ctrl_file "tt" )
  "Run `calibredrv` in RUN_DIR using CTRL_FILE"
  ;; You can add `ipcWait' here if you need to wait for child to terminate
  ipcBeginProcess(
    lsprintf( "cd %s && calibredrv %s cellname.gds 2>&1 " run_dir ctrl_file)
    ""
    lambda( ( _pid data )
      if( rexMatchp("Warning :All Licence In Use" data) then
        print("waiting for licence")
        ;; Follow up code gan go here
        ;; ...
        ))
    ))

    Please note that I haven't tested it.
    It might be safer to reconstruct the data to make sure you are reading proper lines.
    (Even though I am almost sure this should work out of the box)

    Cheers,
    Aurel

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