fiu-ctrl(1)

NAME

   fiu-ctrl - a script to remote control programs using libfiu

SYNOPSIS

   fiu-ctrl [options] PID [PID ...]

DESCRIPTION

   fiu-ctrl  is  a  script  to  enable/disable  failure  points in running
   programs that are using libfiu(3).

   Programs are usually launched using fiu-run(1), which enables  libfiu's
   remote  control  capabilities  without the need to modify the program's
   code.

   For  additional  documentation,  go  to  the   project's   website   at
   http://blitiri.com.ar/p/libfiu.

OPTIONS

   -c command
          Run the given libfiu remote control command before executing the
          program (see below for reference).

   -f ctrlpath
          Set the default prefix for  remote  control  over  named  pipes.
          Defaults  to "$TMPDIR/fiu-ctrl", or "/tmp/fiu-ctrl" if "$TMPDIR"
          is not set, which is the usually correct for  programs  launched
          using fiu-run(1).

   Remote     control     commands    are    of    the    form    "command
   param1=value1,param2=value2".  Valid commands are:

   'enable name=NAME'
          Enables the NAME failure point unconditionally.

   'enable_random name=NAME,probability=P'
          Enables the NAME failure point with a probability of P.

   'disable name=NAME'
          Disables the NAME failure point.

   All of the enable*  commands  can  also  optionally  take  failnum  and
   failinfo parameters, analogous to the ones taken by the C functions.

EXAMPLES

   The  following  command will tell the process running with PID 12345 to
   enable the failure point posix/io/read with a  25%  of  probability  to
   fail,  and the failure point libc/mm/malloc with a 5% of probability to
   fail:

          fiu-ctrl -c 'enable_random name=posix/io/*,probability=0.25' \
                   -c 'enable_random name=libc/mm/*,probability=0.05' 12345

   And the following will tell the same process to disable the  previously
   enabled failure point posix/io/read:

          fiu-ctrl -c 'disable name=posix/io/read' 12345

SEE ALSO

   libfiu(3), fiu-run(1).

BUGS

   If you want to report bugs, or have any questions or comments, just let
   me know at [email protected]. For more information about libfiu,
   you can go to http://blitiri.com.ar/p/libfiu.

                              16/Jun/2009                      fiu-ctrl(1)

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