vsig(1F)  UNIX System V(Form and Menu Language Interpreter Utilities)  vsig(1F)


NAME
      vsig - synchronize a co-process with the controlling FMLI application

SYNOPSIS
      vsig

DESCRIPTION
      The vsig executable sends a SIGUSR2 signal to the controlling FMLI
      process.  This signal/alarm causes FMLI to execute the FMLI built-in
      command checkworld (see Chapter 2 in the Character User Interface
      Programmer's Guide), which causes all posted objects with a reread
      descriptor evaluating to TRUE to be reread.  vsig takes no arguments.

EXAMPLES
      The following is a segment of a shell program:

            echo "Sending this string to an FMLI process"
            vsig

      The vsig executable flushes the output buffer before it sends the SIGUSR2
      signal to make sure the string is actually in the pipe created by the
      cocreate function.

NOTES
      Because vsig synchronizes with FMLI, it should be used rather than kill
      to send a SIGUSR2 signal to FMLI.

SEE ALSO
      coproc(1F)
      kill(1), in the  UNIX System V User's Reference Manual
      kill(2), signal(2), in the UNIX System V Programmer's Reference Manual























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