vsig(1F)          MISC. REFERENCE MANUAL PAGES           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  control-
     ling 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 will flush 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 syncronizes with FMLI, it should be used rather
     than kill to send a SIGUSR2 signal to FMLI.

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






















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