This changes the SHM log format, it doesn’t use 0-bytes to separate
entries anymore. Instead of using lots of printf() calls in i3-dump-log,
we now do precisely one big write().
So, to be clear: i3-dump-log and i3 both need to be upgraded.
Mismatching versions will lead to garbage output (no crashes of i3, just
garbage output).
The -f flag uses an inter-process pthread_cond_t in the shared memory
header to broadcast the arrival of new messages to all i3-dump-log
processes. This internally uses futexes and thus doesn’t even mean a
kernel call in most cases. inter-process pthread_cond_ts require NPTL
(the Native Posix Thread Library, introduce in Linux 2.6).
From the source:
When starting i3 initially (and after each change to the connected
outputs), this function fixes the resolution of the __i3
pseudo-output. When that resolution is not set to a function which
shares a common divisor with every active output’s resolution,
floating point calculation errors will lead to the scratchpad window
moving when shown repeatedly.
fixes#632
Since we advertise _NET_ACTIVE_WINDOW support (but only set the
corresponding atom currently), it makes sense to also support the
ClientMessage. Apps such as Gajim use it to set focus to the roster
window when clicking on the tray icon for example.
fixes#767
Compilers store the path with which they were called in the debug
symbols. Therefore, this will make backtraces show something like
../i3-4.2/src/main.c instead of src/main.c.
See also http://stackoverflow.com/questions/6473561/
before:
$ time CC=clang make -j16
CC=clang make -j16 6,04s user 0,86s system 468% cpu 1,471 total
CC=clang make -j16 6,05s user 0,87s system 468% cpu 1,477 total
CC=clang make -j16 6,15s user 0,86s system 464% cpu 1,510 total
CC=clang make -j16 6,05s user 0,93s system 467% cpu 1,493 total
CC=clang make -j16 6,10s user 0,84s system 461% cpu 1,507 total
$ time CC=gcc make -j16
CC=gcc make -j16 9,91s user 1,43s system 508% cpu 2,231 total
CC=gcc make -j16 10,02s user 1,37s system 500% cpu 2,275 total
CC=gcc make -j16 9,80s user 1,60s system 507% cpu 2,245 total
CC=gcc make -j16 10,02s user 1,44s system 506% cpu 2,264 total
CC=gcc make -j16 9,99s user 1,45s system 505% cpu 2,261 total
after:
$ time CC=clang make -j16
CC=clang make -j16 3,41s user 0,83s system 375% cpu 1,131 total
CC=clang make -j16 3,29s user 0,90s system 373% cpu 1,122 total
CC=clang make -j16 3,35s user 0,77s system 369% cpu 1,116 total
CC=clang make -j16 3,36s user 0,78s system 374% cpu 1,105 total
CC=clang make -j16 3,46s user 0,75s system 373% cpu 1,126 total
$ time CC=gcc make -j16
CC=gcc make -j16 10,74s user 1,44s system 494% cpu 2,462 total
CC=gcc make -j16 10,68s user 1,54s system 497% cpu 2,453 total
CC=gcc make -j16 10,60s user 1,60s system 488% cpu 2,499 total
CC=gcc make -j16 10,63s user 1,51s system 485% cpu 2,502 total
CC=gcc make -j16 10,70s user 1,51s system 497% cpu 2,453 total
Therefore, we enable pre-compiled headers only when CC=clang.
This is useful for third-party scripts which require certain features
and want to error out cleanly when they are run with an old i3 version.
Additionally, i3 --version might be different from what’s actually
running (an old version of the binary), so i3-msg -t get_version will be
the best way to figure out the i3 version you are actually running from
this commit on.
With this commit, the "default" layout is replaced by the splith and
splitv layouts. splith is equivalent to default with orientation
horizontal and splitv is equivalent to default with orientation
vertical.
The "split h" and "split v" commands continue to work as before, they
split the current container and you will end up in a split container
with layout splith (after "split h") or splitv (after "split v").
To change a splith container into a splitv container, use either "layout
splitv" or "layout toggle split". The latter command is used in the
default config as mod+l (previously "layout default"). In case you have
"layout default" in your config file, it is recommended to just replace
it by "layout toggle split", which will work as "layout default" did
before when pressing it once, but toggle between horizontal/vertical
when pressing it repeatedly.
The rationale behind this commit is that it’s cleaner to have all
parameters that influence how windows are rendered in the layout itself
rather than having a special parameter in combination with only one
layout. This enables us to change existing split containers in all cases
without breaking existing features (see ticket #464). Also, users should
feel more confident about whether they are actually splitting or just
changing an existing split container now.
As a nice side-effect, this commit brings back the "layout toggle"
feature we once had in i3 version 3 (see the userguide).
AFAIK, it is safe to use in-place restart to upgrade into versions
after this commit (switching to an older version will break your layout,
though).
Fixes#464
e.g. pressing Mod1+x when having the following in your configfile:
bindsym Mod1+x some invalid command
will lead to an i3-nagbar instance popping up, offering you to view the
error log (which will contain parser errors from this commit on).
This workaround is necessary for terminal emulators which parse -e in a
different way: some accept a list of arguments (-e command arg1 arg2 …),
some accept only one argument (-e "command arg1 arg2 …"). Therefore, we
just create a script and pass that as the one and only argument.
Quentin Glidic