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2014-10-03console: add user console daemonDavid Herrmann
This adds a first draft of systemd-consoled. This is still missing a lot of features and does some rather primitive rendering. However, it shows the direction this code is going and serves as basis for further testing. The systemd-consoled binary should be run as `systemd --user' unit. It automatically picks up any session marked as Desktop=SYSTEMD-CONSOLE. Therefore, you can use any login-manager you want (ranging from /bin/login to gdm) to create sessions for systemd-consoled. However, the sessions managers must be prepared to set the Desktop= variable properly. The user-session is called `systemd-console', only the daemon providing the terminal environment is called `systemd-consoled' (mind the 'd'). So far, only a single terminal session is provided on each opened user-session. However, we support multiple user-sessions (even across multiple seats) just fine. In the future, the workspace logic will get extended so you can have multiple terminal sessions in a single user-session for easier access. Note that this is still experimental! Instructions on how to run it will follow shortly.
2014-10-03pty: optimize read loopDavid Herrmann
As it turns out, I can actually send data to the pty faster than the terminal can read. Therefore, make sure we read as much data as possible but bail out early enough to not cause starvation. Kernel TTY buffers are 4k, so reduce the overall buffer size, but read more than once if possible (up to 8 times sounds reasonable).
2014-10-03terminal/screen: adjust screen age only on updateDavid Herrmann
Instead of increasing the screen-age on redraw, we now increase it only on real updates. This is effectively the same, but avoids increased age counters on backbuffer rendering. Therefore, we can now check age counters against fronbuffers safely, while rendering frames in background.
2014-10-03terminal/screen: add color converterDavid Herrmann
Terminals use pseudo color-codes mixed with 8bit and 24bit colors. Provide a color-converter so external renderers only have to deal with ARGB32 colors. This requires a color-palette as input as there's no fixed mapping. We provide a default, but maybe we wanna support external palettes in the future.
2014-10-03terminal/screen: add cursor renderingDavid Herrmann
This is the most simple way to render cursors: flip attr->inverse of the cursor cell. This causes the background and foreground colors of the cursor-cell to be inversed. Now that we render cursors ourselves, make subterm not call into the parent terminal to render cursors.
2014-10-03terminal/screen: mark cursor dirty on enabled/disableDavid Herrmann
If we hide or show the cursor, we change visual attributes and have to mark the underlying cell as dirty. Otherwise, the terminal will not be redrawn.
2014-10-03terminal/idev: add helper to match keyboard shortcutsDavid Herrmann
Matching keyboard shortcuts on internationalized keyboards is actually non-trivial. Matching the actual key is easy, but the modifiers can be used by both, the matching and the translation step. Therefore, XKB exports "consumed-modifiers" that we use to figure out whether a modifier was already used by the translation step. The new IDEV_KBDMATCH() helper can be used to match on any keyboard shortcut and it will do the right thing.
2014-10-03terminal/screen: add keyboard mappingDavid Herrmann
Implement the feed_keyboard() handling by mapping XKB keys according to DEC-VT behavior. Public information on terminal key-mappings is pretty scarce. We only implement the most basic mapping for now. Further improvements welcome!
2014-10-03terminal/idev: don't map XKB_KEY_NoSymbol as ASCII 0David Herrmann
XKB_KEY_NoSymbol is defined as 0 but does not correspond to a VT key with ASCII value 0. No such key exists, so don't try to find such a key.
2014-10-03terminal/unifont: add built-in fallback glyphDavid Herrmann
In case we cannot render a glyph, we want a fallback we can display instead. If we rely on the font itself to provide the fallback character, we have nothing to display if that character is not available. Therefore, add a static fallback that we can use at any time.
2014-10-03terminal/subterm: use screen rendererDavid Herrmann
Don't hard-code the screen renderer but use the newly introduced term_screen_draw() helper.
2014-10-03terminal: add screen rendererDavid Herrmann
We don't want to expose the term_screen internals for rendering. Therefore, provide an iterator that allows external renderers to draw terminals.
2014-10-03terminal/drm: clear 'applied' flag when changing stateDavid Herrmann
If a pipe is enabled/disabled, we have to clear crtc->applied of the linked CRTC. Otherwise, we will not run a deep modeset, but leave the crtc in the pre-configured state.
2014-10-03terminal/grdev: allow arbitrary fb-age contextsDavid Herrmann
Instead of limiting fb-aging to 64bit integers, allow any arbitrary context together with a release function to free it once the FB is destroyed.
2014-10-03terminal/grdev: provide front and back buffer to renderersDavid Herrmann
We really want more sophisticated aging than just 64bit integers. So always provide front *and* back buffers to renderers so they can compare arbitrary aging information and decide whether to re-render.
2014-10-03terminal/drm: provide pipe->target() callbackDavid Herrmann
Instead of looking for available back-buffers on each operation, set it to NULL and wait for the next frame request. It will call back into the pipe to request the back-buffer via ->target(), where we can do the same and look for an available backbuffer. This simplifies the code and avoids double lookups if we run short of buffers.
2014-10-03terminal/grdev: simplify DRM event parsingDavid Herrmann
Coverity complained about this code and is partially right. We are not really protected against integer overflows. Sure, unlikely, but lets just avoid any overflows and properly protect our parser loop.
2014-10-03terminal: make utf8 decoder return lengthDavid Herrmann
Lets return the parsed length in term_utf8_decode() instead of a buffer pointer. Store the pointer in the passed argument. This makes it adhere to the systemd coding-style, were we always avoid returning pointers, but store them in output arguments. In this case, the storage is not allocated, so it doesn't fit 100% to this idiom, but still looks much nicer.
2014-10-03terminal: fix back-buffer selection on DRM page-flipDavid Herrmann
We currently select front-buffers as new back-buffer if they happen to be the last buffer in our framebuffer-array. Fix this by never selecting a new front buffer as back buffer.
2014-10-03fileio-label: return error when writing failsZbigniew Jędrzejewski-Szmek
The status of actually writing the file was totally ignored.
2014-10-03journalctl: make --utc work everywhereJan Synacek
The --utc option was introduced by commit 9fd290443f5f99fca0dcd4216b1de70f7d3b8db1. Howerver, the implementation was incomplete.
2014-10-03bootchart: use 'n/a' if PRETTY_NAME is not foundThomas Hindoe Paaboel Andersen
Spotted with coverity. If parsing both /etc/os-release and /usr/lib/os-release fails then null would be passed on. The calls to parse the two files are allowed to fail. A empty /etc may not have had the /etc/os-release symlink restored yet and we just try again in the loop. If for whatever reason that does not happen then we now pass on 'n/a' instead of null.
2014-10-03man: fix sd_event_set_name compilationTom Gundersen
2014-10-03glib-event-glue: remove some unnecessary linesTom Gundersen
Not needed in an example. Should still shorten the license, but should make sure it is still complete so people can copy-paste without problems.
2014-10-03test-barrier: add checks after the barrier constructorThomas Hindoe Paaboel Andersen
Coverity seems to think that we can later end up with the "them" fd having a negative value. Even after a succesful barrier_create. Add some test to verify that the constructor went well. If coverity still complains then it must mean that it thinks the the value is overwritten later.
2014-10-02man: add sd_event_set_name(3)Zbigniew Jędrzejewski-Szmek
2014-10-02man: add sd_event_get_fd(3)Zbigniew Jędrzejewski-Szmek
Example from Tom Gundersen is included using xi:include. The copyright notice stands out a bit. Maybe it should be removed, and the code placed in public domain.
2014-10-02firstboot: silence coverityThomas Hindoe Paaboel Andersen
CID#1237537
2014-10-02Revert "mount: order options before other arguments to mount"Lennart Poettering
This reverts commit 141a1ceaa62578f1ed14f04cae2113dd0f49fd7f. People should fix their libc's getopt(), instead of us using a weird option ordering...
2014-10-02systemctl: remove spurious newlineLennart Poettering
2014-10-02kdbus: don't clobber return values, use strjoin() instead of asprintf(), ↵Lennart Poettering
keep function invocations and variable declarations separate
2014-10-02kdbus: make sure we never invoke free() on an uninitialized pointer on OOMLennart Poettering
2014-10-02update TODOLennart Poettering
2014-10-02sd-dhcp6: do basic sanity-checking of supplied DUIDTom Gundersen
2014-10-02sd-dhcp6: specify the type explicitly when setting custom DUIDTom Gundersen
This would make it simple to verify that the data is on the right format when the type is known.
2014-10-02sd-dhcp6: support custom DUID's up to the size specified in the RFCTom Gundersen
2014-10-02sd-dhcp6-client: support custom DUIDsDan Williams
The caller may have an existing DUID that it wants to use, and may want to use some other DUID generation scheme than systemd's default DUID-EN. [tomegun: whitespace - we never use tabs]
2014-10-02sd-bus: sync kdbus.h (ABI break!)Daniel Mack
struct kdbus_cmd_match got a flags field, which systemd currently makes no use of.
2014-10-02virt: detect that we are running inside the docker containerMichal Sekletar
2014-10-02Fix order and document user unit dirsZbigniew Jędrzejewski-Szmek
Fixup for 718880ba0d 'add a transient user unit directory'.
2014-10-02Rename user_runtime to user_runtime_dirZbigniew Jędrzejewski-Szmek
This makes this function name similar to user_config_home() and makes it match the name of the environment variable.
2014-10-02add a transient user unit directorySteven Allen
This patch adds a transient user unit directory under `$XDG_RUNTIME_DIR/systemd/user/` and stores transient user-instance units (such as those created by `systemd-run --user`) under there instead of putting them in $XDG_CONFIG_HOME/systemd/user/. Fixes https://bugs.freedesktop.org/show_bug.cgi?id=67331
2014-10-02journalctl: add --utc optionJan Synacek
Introduce option to display time in UTC.
2014-10-02localectl: always print warnings with log_warning() instead of printf()Lennart Poettering
They really should got to stderr, not stdout.
2014-10-02localectl: count locale variables from 0, instead of VARIABLE_LANGLennart Poettering
That way the we make our code safe regarding reordering of the variables in the enum.
2014-10-02sd-bus: sync kdbus.h (ABI break)Daniel Mack
struct kdbus_cmd_conn_info takes a list of items now instead of a string. Fix the only user in SD of that ioctl.
2014-10-02Correct a few typosTorstein Husebø
2014-10-02barrier: fix up constructor error handlingDavid Herrmann
We cannot rely on "errno" to be non-zero on failure, if we perform multiple glibc calls. That is, if the first eventfd() call fails, but the second succeeds, we cleanup the barrier but return 0. Fix this by always testing the return value immediately. This should also fix all the coverity warnings.
2014-10-02terminal: add helpers to retrieve page dimensionsDavid Herrmann
Allow term users to retrieve the page dimensions of a terminal screen. This is needed to properly calculate the grid dimensions when rendering.
2014-10-02terminal: add term.h header for library usersDavid Herrmann
Like all the other parts of libsystemd-terminal, split API of term-internal.h into term.h so we can use it from systemd-consoled.