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I don't use these, this isn't really the way vwm is intended to
be used.
For launching higher-order applications that don't need special
wm integrations like recordMyDesktop, or just aren't launched
numerous times daily (like xterm, or xlock), the user is expected
to just use the "console" screen session's available shell to do
things like `firefox &` or `gimp &`... these things aren't
generally started hundreds or thousands of times per day like say
xterm where the launcher shortcut pays clear dividends.
xterm itself in vwm is also used as a sort of throwaway launcher
window. Since everything is kept in MRU order it really doesn't
matter that you've got tons of xterms littering the environment
in contexts/virtual-desktops you just never visit after using
them to launch the thing you are using.
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This requires a current recordMyDesktop build supporting
--need-shortcuts which was just added for this use case.
You can omit --need-shortcuts to support older rmd versions, but
this is leaning on --need-shortcuts to prevent multiple rmd
instances from accidentally being executed concurrently. Also
the shortcuts are expected to be how one pauses/stops the
capture, no vwm-level integration has been added to signal the
process for this purpose.
The default shortcut in rmd for stopping is ctrl+mod1+s which
doesn't collide with vwm's grabs, so everything Just Works.
You can utilize the vwm process monitors as a convenient way to
observe rmd's status in terms of encoding after stopping a
capture. You can see the reduced Idle %age in the top row during
the encode, it'll go back to normal when completed. Or you can
focus the vwm console (the attached screen session) and actually
observe the rmd output to watch the encoding progress - one of
the advantages of vwm's console. Furthermore, you can also
observe the CPU use of recordMyDesktop in that window with the
monitors active.
The key bindings as of now are:
Mod1+Backspace: record the focused window (root window if there
are no windows / empty desktop is focused)
Mod1+Delete: record the whole desktop / root window, even if
there are windows focused, unlike Backspace which will capture
just the focused window if there are windows.
As-is this doesn't specify --full-shots, so it's always in
damage-tracking mode, which might not work well with OpenGL style
captures. There needs to be a way to specify variants in
launchers.def with modifiers, then there could be a +Shift
variant for these where --full-shots is added, or something.
Ideally there should be a pop-up dialog where you get an
opportunity to manipulate the flags passed on from a set of
options, but I'm not doing that right now. That way we could
toggle stuff like sound/no-sound, tweak the FPS rate, toggle
full-shots/damage-tracking, sound/video quality, etc. Maybe it's
best to just use an rmd front-end for that, but it feels like
it'd be nice for vwm to just have a generic little dialog
mechanism for launchers, then launchers.def could describe the
parameterized args for the dialog to present controls for.
^^ TODO
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This borrows from vmon.c to support argument interpolation.
The only interpolation supported right now is %W for a hex
windowid of the focused window.
When no window is focused, the id of the root window is supplied.
This is a preparatory commit for rmd integration
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There needs to be a bunch of this throughout the codebase, but
just doing this spot fix to silence warnings introduced by
subsequent commits... preparatory commit for rmd integration
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It doesn't look like the /bin/sh -c style invocation is going
away anytime soon, so let's just rely on the PATH searching and
this becomes more tolerant of stuff being in /usr vs. /usr/local
etc. (preparatory commit for rmd integration)
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Now you can explicitly set 0Hz for the monitoring, instead of
hitting a pile of Mod1+Left to get there. Leaving the blind
hammering on Mod1+Left to just lower the frequency to 1Hz rather
than disabling it.
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It's nice to be able to blindly hit Mod1+Left a bunch to minimize
the monitoring overhead, like when trying to preserve battery
etc. But I've found myself sometimes annoyed that I've
completely disabled the monitors when I reach for the overlays.
This change removes the 0Hz option from the preset intervals, so
now when you lower monitoring by blindly hitting Mod1+Left a
bunch it'll bottom out at 1HZ.
A subsequent commit will wire up disabling the monitors to an
explicit vwm key combo (probably Mod1+z).
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vmon steps on this edge case, in vwm it was largely benign
since nothing ever happens immediately at vwm startup.
But in vmon you do things monitor commands which might
immediately send SIGUSR1 to vmon for .png snapshots, producing an
empty .png because the first update didn't sample because the
time delta hadn't passed.
This change just maintains a "primed" charts flag to ensure the
initial charts update always samples. This way if got_sigusr1 is
already set on the first iteration, at least the first charts
update will have sampled and composited *something*.
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When this code changed to use a local, potentially heap-allocated
name variable, it started producing "(null)" when no -n/--name
was supplied, that wasn't intended.
Just use a "" name when NULL, enabling bare date-derived snapshot
filenames. This seems preferable since even if you supplied an
empty -n/--name you'd get a hyphen at the start of the name. I
can see scenarios where you have unnamed files labeled by the
output dir instead.
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I don't think I intended this to be permanent, though it might be
nice to have /something/ printed to signify the transition to
breaking the main loop. Something more appropriate can come back
if necessary.
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vmon already handles SIGUSR1 for producing png snapshots on
demand, adding a fmt specifier for substituting the vmon PID
makes for convenient scripting of triggering such snapshots.
i.e:
$ vmon -- /bin/bash -c 'for((i = 0; i < 10; i++)); do kill -USR1 %P; sleep 1s; done'
Would produce ten png snapshots of the charts on 1-second
intervals.
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When the context has a lone desktop, attempting a migrate to the
next MRU desktop does nothing.
This change treats the situation exceptionally and creates a new
desktop in the context for receiving the migrated window, as it's
likely the desired result.
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This adds runtime expansion of the executed command's argv, to
support things like passing the vmon X window id to the executed
command, session name, and output dir.
Format specifiers currently supported by this commit:
%W X window id for vmon in hexadecimal
%n verbatim name supplied via --name
%N filename-safe variant of name supplied via --name
%O output directory supplied via --output-dir (or ".")
%% literal %
There's not curerrently any escaping syntax implemented, relying
entirely on %-stuffing to escape interpolation. i.e. use %%N to
express %N post-interpolation.
This commit also adds SIGINT and SIGQUIT handlers when executing
a command. The first such signal received is simply propagated
to the child command's process, which upon exiting will trigger
the existing SIGCHLD behavior (snapshot if requested, exit).
If a subsequent repeated SIGINT or SIGQUIT is received, an abrupt
exit is performed without waiting for SIGCHLD or otherwise
synchronizing with the child process.
The impetus for this is to enable running recordMyDesktop
alongside the executed command to record the vmon window while
running things like benchmarks or other high-level profiling/CPU
usage over time observations.
The recordMyDesktop utility already responds to SIGINT for ending
a recording, so SIGINT propagation should be sufficient for
recording vmon sessions - provided the recordMyDesktop process is
positioned to receive signals in the executed command. i.e. is
the foreground process or session leader if executed via
something like a `/bin/bash -c` construction.
Some effort has been made to ensure the vmon window is mapped
before running the executed command (XMapWindow() && XSync()).
But with SubstructureRedirect in play, as when a window manager
is active, this alone isn't sufficient to ensure the window is
actually mapped and viewable.
This poses a problem with for the current `recordMyDesktop
--windowid` implementation, which hard fails when the specified
window isn't already mapped and visible. Depending on who wins
the race, the window may not yet actually be mapped by the window
manager by the time recordMyDesktop queries its attributes. But
this is something to fix in recordMyDesktop, even if vmon waited
for a MapNotify event before executing the command, the window
could become unmapped by the window manager - or maybe it
wouldn't even become mapped in a timely fashion if it's placed on
a hidden virtual desktop at the time. The recording tool needs
to just be more robust in this regard, and should really follow
the window around anyways, as well as do things like maybe pause
the recording when unmapped, etc. Out of scope for vmon.
The aforementioned `recordMyDesktop --windowid` race has been
filed as an issue @
https://github.com/recordmydesktop/recordmydesktop/issues/7
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Just expanding the heuristic to everything >= fullscreen instead
of precisely fullscreen. The specific impetus for this was
fullscreen games, but from a security standpoint it makes sense
to manage everything larger as well.
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Now vwm ignores override_redirect for fullscreen windows.
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Preparatory commit for applying a heuristic to honoring
override_redirect.
The X11 specification more or less requires honoring this window
flag, but it's really a disaster to blindly do so.
This function will be used to evaluate override_redirect wherever
it's currently being directly used to determine wether a window
should be managed or not.
As-implemented it only ignores override_redirect when the window
dimensions match its screen dimensions (fullscreen windows). In
the future this might get loosened up a bit to encompass windows
covering more than something unexpectedly large for a
tooltip/popup, like 50% of the screen, since valid
override_redirect uses should arguably be limited to small
windows.
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Once upon a time names were going to be added, but that never came
to be and at some point that unused member was removed. Turns out
-DTRACE builds have been broken since.
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Lack of any statement angers some compilers, just drop it.
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the non-empty focused_desktop having NULL focused_window shouldn't
be possible, but it just happened to me again while playing with
eon's WIP windowed/fullscreen/fillscreen tristate branch.
Though exceedingly rare, it's annoying, so log the bug and don't crash.
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Since libvmon samples the sys_wants before proc_wants, it's
entirely possible the proc_stat->start will be later than
sys_stat->boottime by the time a given process gets sampled.
Simply treat this analogous to being unable to sample the start,
either of which will only leave the Wall as ??s in the highly
ephemeral short-lived process scenario. In the > boottime case,
the next sample for the same process would have start <= boottime
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Tidying some vestigial cruft from the pre-VWM_COLUMN* transition,
still feels relatively crufty and fragile, but this is about all I
have time for spending on this at the moment...
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This adds an externally triggered means of snapshotting, which
is always available, not only with --snapshot.
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Apparently I never actually made this conditional on the flag...
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also sort flags alphabetically in help output
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When libvmon fails to successfully sample proc_stat, it will
leave this value as 0, which isn't really otherwise a normal
process start value.
Handle this by producing "??s" for the Wall time normally derived
from (sys_stat->boottime - proc_stat->start), to prevent
producing an incorrect Wall time equal to sys_stat->boottime.
There should probably be a more robust means of communicating
these libvmon sampling failures to vwm/vmon, but I've thus far
been resisting adding something like an errno to every sample
store, or worse every sample store's datum. It's kind of
non-trivial to do without bloating the sample stores, especially
since the stores consolidate multiple proc files under a single
store/want. Having a single errno in the store would prevent
letting the valid portions of the store be usable while ignoring
the errored portions. Perhaps just a per-store errno with a
bitfield to indicate which subset are errored would suffice...
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This is a first pass at cleaning up the overlay content rendering
with an eye towards enabling runtime configuration of which
columns are present and their layout.
Nothing is runtime configurable yet, but this changes the drawing
to at least be data-driven using two arrays of column structs,
one for the list of active processes in the upper portion of the
chart, and another for the lower "snowflakes" exited
processes/threads portion.
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comm is where the thread name will be if set, and when set it can
be awkward to then see the process' argv following the thread
name. This reduces the amount of clutter and visual noise for
threaded processes...
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Exposed as VMON_SYS_STAT_BOOTTIME, so part of VMON_WANT_SYS_STAT,
in units of ticks to normalize with SYS_STAT_CPU* times.
This also introduces vmon->ticks_per_sec, which callers can access
as well for convenience since vmon_t is all public and this library
doesn't aspire to keep anything private. It's initialized via
sysconf(_SC_CLK_TCK) @ vmon_init().
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16+NUL was clearly too short for descriptive names, pushed it
all up to get closer to the common 256 fs limit.
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Was using the underlying chart dimensions which mirror the window
dimensions, which worked fine but this wastes less space in the
produced images when there's not much vertical content.
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Currently only vmon wires this up to --name, but vwm could get
the window title of the window being overlayed and pass that in
if set...
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Shows in the window title and the start of snapshot filenames
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This implements saving the chart contents to a PNG file created
in the output dir upon receiving SIGCHLD.
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Preparatory commit; saved PNGs need a place to go, and the user
needs a way to control that. Defaults to CWD (".")
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Preparatory commit; PNG snapshots will be named using the start time
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Preparatory work for supporting --snapshot-on-sigchld to vmon;
add a way to access a chart's pixels outside of the X server.
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It's really only necessary to have 0-9, and brown is both
ugly and too similar to magenta
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This makes vmon exit more cooperatively when window managers kindly
ask it to with a message rather than requiring XKillClient().
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Cosmetic change, the plain truncation would occasionally result in
unexpected Hz values in the charts like 59Hz particularly using
vmon w/arbitrary --hertz values.
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This is unfortunately a bit of a large commit, but it's at least
pretty much all on-topic for the generalized "contexts" feature.
Rather than waste time trying to split this further into smaller
commits, I'm just landing it as-is, now that I've lived with the
interaction model long enough to not completely hate it.
I fully expect to revisit this in the future. One TODO item in
particular I'd like to note is "sending" windows to contexts
always creates a new virtual desktop for the sent window in the
destination context. What should really happen is the
destination context should be checked for an empty desktop, and a
new desktop created only when there isn't an empty one to be
reused for receiving the sent window. Note this only affects
non-migrate sends, as migrates (modified by Shift) explicitly use
the existing focused desktop at the destination context.
See the README for more information on how contexts work and
what's different about the interaction model. It's fairly
minimal, most of what you already know how to do should keep
working as-is. The only oddity would be Mos1-s no longer
"shelves" windows, it's now a modifier to turn "migrates" into
"sends", and by itself is a noop now.
Colors used for contexts haven't been refined and are enumerated
in src/context_colors.def.
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preparatory commit for generalized contexts replacing the shelf
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minor ergonomic improvement; enables plain wrapping of creates or
other relevant object pointers with _mru() calls without
requiring an intermediate storage variable.
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At some point I wanted to support naming virtual desktops, but that
never materialized and I don't find myself wishing it was there.
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