128 lines
5.4 KiB
Plaintext
128 lines
5.4 KiB
Plaintext
<!--
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Fcron documentation
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Copyright 2000-2014 Thibault Godouet <fcron@free.fr>
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Permission is granted to copy, distribute and/or modify this
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document under the terms of the GNU Free Documentation License,
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Version 1.1 or any later version published by the Free Software
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Foundation.
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A copy of the license is included in gfdl.sgml.
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-->
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<sect1 id="todo">
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<title>Todo</title>
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<para>Here are some things that should be done ... Note that some of these
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entries are just some ideas, which <emphasis>may</emphasis> be done in
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the long run.</para>
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<para>If you see something you'd really like to see implemented here, feel
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free to send me a mail: it may make me move it to the top of my to-do list ;) .
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</para>
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<para>If you plan to help me, please send a mail at &email; to prevent two
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people from doing the same thing. You can send me some propositions as
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well, or ask me to move something to the top of the heap ;) .</para>
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<sect2>
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<title>High priority</title>
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<itemizedlist>
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<listitem>
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<para>test the fix for empty mails on non linux systems (solaris seems ok, feedback on BSD?) (starting from fcron 2.9.7 -- no complain so far, so fixed?)</para>
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</listitem>
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<listitem>
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<para>bug fix: what happens if the grand-child cannot be forked or cannot run the job in job.c? + better loop to read/write the pid of grand-child from/by the child (fcron freezes if the filesystem on which it operates has no space left? (cannot reproduce it on my linux system)</para>
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</listitem>
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<listitem>
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<para>set TZ env. var. for jobs for which option tz is used.</para>
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</listitem>
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</itemizedlist>
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</sect2>
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<sect2>
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<title>Low priority</title>
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<itemizedlist>
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<listitem>
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<para>code cleaning: create a .c/.h file for data structures
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(file/line lists, serial queue, lavg list, exe list),
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and work with them only through functions/macros.
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+ secure equivalent to str[n]{cat|copy|...}</para>
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<para>Note: may introduce bugs, so it will be done in fcron 3.1.x, and needs to be tested thoroughly..</para>
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</listitem>
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<listitem>
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<para>Mem footprint reduction: use an/some union(s) in CL struct.</para>
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</listitem>
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<listitem>
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<para>For environment settings, make a var substitution.</para>
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</listitem>
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<listitem>
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<para>add a return code for jobs which would mean that they
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should not be run again (in case of an error, etc...).</para>
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</listitem>
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<listitem>
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<para>Use directory notifications (FAM), and support a fcrontab
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and a cron.d as Vixie cron does (directly included in fcron itself, not thanks to a script as now).</para>
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</listitem>
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<listitem>
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<para>PAM support (included in fcron, but needs more tests by
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people using PAM - not implemented in fcrondyn: is it needed
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in fcrondyn anyway?)</para>
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</listitem>
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<listitem>
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<para>support for per user serial queue (especially for root)</para>
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</listitem>
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<listitem>
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<para>use readline (if available) for fcrondyn.</para>
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</listitem>
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<listitem>
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<para>add a mailsubject option, for custom mail subjects (for instance, in case of a job containing something secret -- password, etc -- in the command line).</para>
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</listitem>
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</itemizedlist>
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</sect2>
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<sect2>
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<title>Ideas</title>
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<itemizedlist>
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<listitem>
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<para>add a system of modules: at startup, fcron loads some
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modules (.so files). Then, when fcron should run the job, it
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calls a function of the module, and let it manage the job
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(threads?). (do linux dlopen(), etc exist on other systems?
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- yes: thanks Harring ;) dlopen exists on all POSIX system -
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even windoze - abait it does not use the same insterface of
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function calls. But it can be easily implemented to port to
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another system.).</para>
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</listitem>
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<listitem>
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<para>(related to the system of modules? create a kind of
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dependencies?) Add a way to run a job only if a command
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returns true. It would permit, for instance, to run some jobs
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on a laptop only if it is on AC power.</para>
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<para>and depending on the return value of the command, cancel
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the execution, or wait x seconds before trying again, etc.
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In this case, needs change the way the jobs are queued?</para>
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</listitem>
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<listitem>
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<para>add an option/module to prevent fcron from running a job if the
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system is running on battery (anacron does it?)</para>
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</listitem>
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<listitem>
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<para>Add a way to stop a job (SIGSTOP) if the lavg gets to high,
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and restart it (SIGCONT) when the lavg has decreased.</para>
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</listitem>
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<listitem>
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<para>Add a timeout for task completion: if a task takes more
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than a specified timeout, then start another script with the
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initial task PID as argument. That would allow a kill with
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different signals (-HUP, -TERM -STOP, .... or any other action
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like sending a mail to sysadmin to alert him/her that a task
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is taking too much time and that he has to have a look at it.)
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(add an option to specify the cmd, and combine w/ option until)
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</para>
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</listitem>
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</itemizedlist>
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</sect2>
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</sect1>
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Local variables:
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mode: sgml
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sgml-parent-document:("fcron-doc.sgml" "book" "chapter" "sect1" "")
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End:
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