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reworded manpage of --exit

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Dima Kogan 2017-03-19 19:50:45 -07:00
parent 5740e55a6f
commit 7c1f02ec7f
1 changed files with 15 additions and 16 deletions
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@ -1847,16 +1847,15 @@ is possible to send the output produced this way to gnuplot directly.
C<--exit> C<--exit>
This controls the details of what happens when the input data is exhausted, or This controls what happens when the input data is exhausted, or when some part
when some part of the C<feedgnuplot> pipeline is killed. This option does of the C<feedgnuplot> pipeline is killed. This option does different things
different things depending on whether C<--stream> is active, so read this depending on whether C<--stream> is active, so read this closely.
closely.
With interactive gnuplot terminals (qt, x11, wxt), the plot windows live in a With interactive gnuplot terminals (qt, x11, wxt), the plot windows live in a
separate process from the main C<gnuplot> process. It is thus possible for the separate process from the main C<gnuplot> process. It is thus possible for the
main C<gnuplot> process to exit, while leaving the plot windows up (a caveat is main C<gnuplot> process to exit, while leaving the plot windows up (a caveat is
that such decapitated windows aren't interactive). To be clear, there are 3 that such decapitated windows aren't interactive). There are 3 possible states
possible states: of the polotting pipeline:
=over =over
@ -1871,35 +1870,35 @@ prompt available
=back =back
The C<--exit> option controls the details of this behavior. The possibilities The possibilities are:
are:
=over =over
=item No C<--stream>, input pipe is exhausted (all data read in) =item No C<--stream>, all data read in
=over =over
=item default; no C<--exit> =item no C<--exit> (default)
Alive. Need to Ctrl-C to get back into the shell Alive. Need to Ctrl-C to get back into the shell
=item C<--exit> =item C<--exit>
Half-alive. Non-interactive prompt up, and the shell accepts new commands. Half-alive. Non-interactive prompt up, and the shell accepts new commands.
Without C<--stream> the goal is to show a plot, so a Dead state is not useful Without C<--stream> the goal is to show a plot, so a Dead state would not be
here. useful.
=back =back
=item C<--stream>, input pipe is exhausted (all data read in) or the =item C<--stream>, all data read in or the C<feedgnuplot> process terminated
C<feedgnuplot> process terminated
=over =over
=item default; no C<--exit> =item no C<--exit> (default)
Alive. Need to Ctrl-C to get back into the shell Alive. Need to Ctrl-C to get back into the shell. This means that when making
live plots, the first Ctrl-C kills the data feeding process, but leaves the
final plot up for inspection. A second Ctrl-C kills feedgnuplot as well.
=item C<--exit> =item C<--exit>