This is a complete port of the headless backend that
uses the recently added output handling API for output
configuration.
- Output can be configured at runtime by passing the
necessary configuration parameters, which can be
filled in manually, obtained from the configuration
file or obtained from the command line using
previously added functionality. It is required that
the scale and transform values are set using the
previously added functionality.
- Output can be created at runtime using the output
API. The output creation only creates a pending
output, which needs to be configured the same way as
mentioned above.
After everything has been set, output needs to be
enabled manually using weston_output_enable().
Same as before, a single output is created at runtime
using the default configuration or a configuration
parsed from the command line. The no-outputs
functionality is also preserved, which means that no
output will be created initially, but more outputs can
be added at runtime using the output API.
New feature:
This patch also adds, as a bonus of using shared
functionality, support for setting options for outputs
created by this backend in the weston config file in
addition to setting them from the command line.
v2:
- Fix wet_configure_windowed_output_from_config() usage.
- Call headless_output_disable() explicitly from
headless_output_destroy().
v3:
- Add scale support to output width and height.
- Use scaled values in calls to various functions which
require width and height.
- Disallow calling headless_output_configure more than once.
- Remove unneeded checks for output->name == NULL as that
has been disallowed.
- Use weston_compositor_add_pending_output().
- Bump weston_headless_backend_config version to 2.
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Signed-off-by: Armin Krezović <krezovic.armin@gmail.com>
This is a complete port of the fbdev backend that uses
the recently added output handling API for output
configuration.
It is required that the scale and transform values are
set using the previously added functionality.
After everything has been set, output needs to be
enabled manually using weston_output_enable().
v2:
- Use weston_compositor_add_pending_output().
- Bump weston_fbdev_backend_config version to 2.
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Signed-off-by: Armin Krezović <krezovic.armin@gmail.com>
This is a complete port of the DRM backend that uses
the recently added output handling API for output
configuration.
Output can be configured at runtime by passing the
necessary configuration parameters, which can be
filled in manually or obtained from the configuration
file using previously added functionality. It is
required that the scale and transform values are set
using the previously added functionality.
After everything has been set, output needs to be
enabled manually using weston_output_enable().
v2:
- Added missing drmModeFreeCrtc() to drm_output_enable()
cleanup list in case of failure.
- Split drm_backend_disable() into drm_backend_deinit()
to accomodate for changes in the first patch in the
series. Moved restoring original crtc to
drm_output_destroy().
v3:
- Moved origcrtc allocation to drm_output_set_mode().
- Swapped connector_get_current_mode() and
drm_output_add_mode() calls in drm_output_set_mode()
to match current weston.
- Moved crtc_allocator and connector_allocator update
from drm_output_enable() to create_output_for_connector()
to avoid problems when more than one monitor is connected
at startup and crtc allocator wasn't updated before
create_output_for_connector() was called second time,
resulting in one screen being turned off.
- Moved crtc_allocator and connector_allocator update from
drm_output_deinit() to drm_output_destroy(), as it
should not be called on drm_output_disable().
- Use weston_compositor_add_pending_output().
- Bump weston_drm_backend_config version to 2.
v4:
- Reset output->original_crtc to NULL if drm_output_set_mode()
fails.
- Remove unneeded log message when disabling an output when a
pageflip is pending.
- Document that create_output_for_connector() takes ownership
of the connector.
- Free the connector if create output conditionals are not met
in create_outputs() and update_outputs().
Signed-off-by: Armin Krezović <krezovic.armin@gmail.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
This implements output configuration for outputs which use
previously added weston_windowed_output_api. The function
takes an output that's to be configured, default configuration
that's to be set in case no configuration is specified in
the config file or on command line and optional third argument,
parsed_options, which will override defaults and options for
configuration if they are present.
This also introduces new compositor specific functions for
setting output's scale and transform from either hardcoded
default, config file option or command line option.
Pending output handling helpers have also been introduced.
v2:
- Adapt to changes in previous patch.
- Fix potential double free().
- Remove redundant variables for scale and transform setting.
- Drop parsed_options helper and parameter and use it directly
in wet_configure_windowed_output_from_config().
v3:
- Remove unneeded checks for output->name == NULL as that
has been disallowed.
- Stop printing mode if it's invalid, as it can be NULL.
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Signed-off-by: Armin Krezović <krezovic.armin@gmail.com>
This tightens up the strtol() error checking in several places where it
is used for parsing environment variables, and in the backlight
interface that is reading numbers from files under /sys/class/backlight.
All of these uses are expecting strings containing decimal numbers and
nothing else, so the error checking can all be tightened up and made
consistent with other strtol() calls.
This follows the error checking style used in Wayland
(c.f. wayland-client.c and scanner.c) and c.f. commit cbc05378.
Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
This patch makes the compositor user data a structure
which can be expanded with new fields when necessary.
v2:
Don't export to_wet_compositor
Signed-off-by: Armin Krezović <krezovic.armin@gmail.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
The third arg to strtol() specifies the base to assume for the number.
When 0 is passed, as is currently done in option-parser.c, hexadecimal
and octal numbers are permitted and automatically detected and
converted.
This change is an expansion of f6051cbab8
to cover the remaining strtol() calls in Weston, where the routine is
being used to read fds and pids - which are always expressed in base-10.
It also changes the calls in config-parser, used by
weston_config_section_get_int(), which in turn is being used to read
scales, sizes, times, rates, and delays; these are all expressed in
base-10 numbers only.
The benefit of limiting this to base-10 is to eliminate surprises when
parsing numbers from the command line. Also, by making the code
consistent with other usages of strtol, it may make it possible to
factor out the common code in the future.
Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
This patch follows a similar approach taken to detach the backends from
weston. But instead of passing a configuration struct when loading the
plugin, we use the plugin API registry to register an API, and to get it
in the compositor side. This API allows to spawn the Xwayland process
in the compositor side, and to deal with signal handling. A new
function is added in compositor.c to load and init the xwayland.so
plugin.
Also make sure to re-arm the SIGUSR1 when the X server quits.
Signed-off-by: Giulio Camuffo <giuliocamuffo@gmail.com>
[Pekka: moved xwayland/weston-xwayland.c -> compositor/xwayland.c]
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
This patch adds a new command line option which can be
used to tell headless backend not to create any
virtual outputs.
This will be used for output hotplug emulation, where
weston will start with no outputs available, and the
virtual output will be created at runtime.
v2:
- Use bool instead of int for the indicator flag
- Move final newspace to a separate line in command
line options
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Signed-off-by: Armin Krezović <krezovic.armin@gmail.com>
Write the command line to the log to aid debugging. It needs to be
copied before parsing, because parsing mutates argv.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
This is the start of separating weston-the-compositor source files from
libweston source files.
This is moving all the files related to the 'weston' binary. Also the
CMS and systemd plugins are moved.
xwayland plugin is not moved, because it will be turned into a
libweston feature.
To avoid breaking the build, #includes for weston.h are fixed to use
compositor/weston.h. This serves as a reminder that such files may need
further attention: moving to the right directory, or maybe using the
proper -I flags instead.
v2: Move also screen-share.c, and add a note about weston-launch.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Yong Bakos <ybakos@humanoriented.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Tested-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Tested-by: Benoit Gschwind <gschwind@gnu-log.net>
Acked-by: Benoit Gschwind <gschwind@gnu-log.net>
[Pekka: rebased]
For debugging weird timing issues. If your clock resolution is
unexpectedly e.g. 10 ms, you can be sure you will have strange timing
issues. This is almost certainly caused by kernel misconfiguration.
We rely on clock_getres() being available by the same thing that gets us
clock_gettime(), so that no new configure.ac check is needed.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-By: David Fort <contact@hardening-consulting.com>
EGL code was added to the fbdev backend in
4aa756dc7a in 2013, apparently for running
Weston on libhybris with Android hardware drivers.
This actually had nothing to do with the fbdev backend, really. Fbdev
was just a convenient platform to plug in the EGL init code and load
GL-renderer. Fbdev itself was not used at all in this case.
Fbdev should be forgotten and die, as we have better interfaces for
accelerated rendering and for controlling displays. It may be a bit too
harsh to remove the whole fbdev backend just yet, but let us at least
simplify it this much.
Fbdev+EGL has been the unholy union used by proprietary driver stacks of
hardware vendors in the non-PC world as a quick and dirty way to get
something out on the screen. In these cases it is actually the EGL
implementation that does everything internally, fbdev is not needed.
Fbdev was never meant for the sort anyway.
If anyone still needs this use case, I recommend sticking with a
outdated Weston to match your outdated platform. Or if you really
insist, write a new backend that does not pretend to use fbdev and just
initializes EGL and GL-renderer.
Cc: Adrian Negreanu <groleo@gmail.com>
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
There is no need to pass the backend name string to these functions
anymore.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Giulio Camuffo <giuliocamuffo@gmail.com>
Change weston_compositor_load_backend() to use an enum to choose the
backend.
The caller no longer needs to know what the backend DSO is called in the
file system. Custom backends cannot be laoded anymore, as the loading
path is now always either LIBWESTON_MODULEDIR, or formed from
$WESTON_BUILD_DIR.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Giulio Camuffo <giuliocamuffo@gmail.com>
Move load_backend_new() from main.c to weston_compositor_load_backend()
in compositor.c.
This makes libweston load its own backends without leaking the details
to the user.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Giulio Camuffo <giuliocamuffo@gmail.com>
Not used anymore, all backends are loaded through the new method.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Giulio Camuffo <giuliocamuffo@gmail.com>
The backends are now installed in lib/libweston-0, and the include
files that will be used by libweston in include/libweston-0. The other
modules and weston-specific include files are kept in the old paths.
A new wet_load_module() is added to load plugins in the old path,
which is not part of libweston, but weston only and defined in main.c.
To allow that to be used by out of tree weston plugins, the function
is declared in a new weston.h, installed in include/weston.
The -0 in the paths is the abi version of libweston, and it will also
be used by the libweston .so. If the abi changes the number will need
to be increased.
Signed-off-by: Giulio Camuffo <giuliocamuffo@gmail.com>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Instead add callbacks to the drm and fbdev backends and pass that to
the input backens so that when a new device needs to be configured
that is called and the compositor can configure it.
Signed-off-by: Giulio Camuffo <giuliocamuffo@gmail.com>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
The config can now be retrieved with a new function defined in weston.h,
wet_get_config(weston_compositor*).
Signed-off-by: Giulio Camuffo <giuliocamuffo@gmail.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
They belong in the compositor rather than libweston since they
set signals handlers, and a library should not do that behind its
user's back. Besides, they were using functions in main.c already
so they were not usable by other compositors.
Signed-off-by: Giulio Camuffo <giuliocamuffo@gmail.com>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
weston_compositor_xkb_destroy() is called automatically so having only
weston_compositor_xkb_init() to be called by the user was a bit weird.
So rename it so that it makes more sense.
Also export it, since libweston compositors need to call it.
Signed-off-by: Giulio Camuffo <giuliocamuffo@gmail.com>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
This patch completely removes the Raspberry Pi backend and the renderer.
The backend and the renderer were written to use the proprietary
DispmanX API available only on the Raspberry Pi, to demonstrate what the
tiny computer is capable of graphics wise. They were also used to
demonstrate how Wayland and Weston in particular could leverage hardware
compositing capabilities that are not OpenGL. The backend was first
added in e8de35c922, in 2012.
Since then, the major point has been proven. Over time, support for the
rpi-backend diminished, it started to deteriorate and hinder Weston
development. On May 11, I tried to ask if anyone actually cared about
the rpi-backend, but did not get any votes for keeping it:
https://lists.freedesktop.org/archives/wayland-devel/2016-May/028764.html
The rpi-backend is a good example of how using an API that is only
available for specific hardware, even more so as it is only available
with a proprietary driver stack, is not maintainable in the long run.
Most developers working on Weston either just cannot, or cannot bother
to test things also on the RPi. Breakage creeps in without anyone
noticing. If someone actually notices it, fixing it will require a very
specific environment to be able to test. Also the quality of the
proprietary implementation fluctuated. There are reports that RPi
firmware updates randomly broke Weston, and that nowadays it is very
hard to find a RPi firmware version that you could expect to work with
Weston if Weston itself was not broken. We are not even sure what is
broken nowadays.
This removal does not leave Raspberry Pi users cold (for long), though.
There is serious work going on in implementing a FOSS driver stack for
Raspberry Pi, including modern kernel DRM drivers and Mesa drivers. It
might not be fully there yet, but the plan is to be able to use the
standard DRM-backend of Weston on the RPis. See:
http://dri.freedesktop.org/wiki/VC4/
The rpi-backend had its moments. Now, it needs to go. Good riddance!
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
Acked-by: Bryce Harrington <bryce@osg.samsung.com>
Acked-by: Jonas Ådahl <jadahl@gmail.com>
Acked-by: Daniel Stone <daniels@collabora.com>
weston_wayland_backend_config_release() does not bother reinitializing
the structure, it simply frees what is there. This leads to a structure
containing garbage, which might be a surprise.
Require, that if load_wayland_backend_config() fails, the caller must
call weston_wayland_backend_config_release() regardless.
Signed-off-by: Benoit Gschwind <gschwind@gnu-log.net>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
[Pekka: rewrote commit message]
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Rename the wayland_backend_config_release function to
weston_wayland_backend_config_release to follow legacy naming scheme.
Signed-off-by: Benoit Gschwind <gschwind@gnu-log.net>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
[Pekka: rebased]
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Remove the unseless intermediate variable new_config in the function
load_wayland_backend_config, replacing it by the renamed parameter
'config'.
Signed-off-by: Benoit Gschwind <gschwind@gnu-log.net>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
[Pekka: Squashed in "compositor-wayland: rename out_config arg of load_wayland_backend_config".]
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Rename the load_wayland_backend_config arg "config" to use this name for
another variable in the following patch. It also follow the legacy
naming scheme.
Signed-off-by: Benoit Gschwind <gschwind@gnu-log.net>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Move function load_wayland_backend_config,
wayland_backend_config_add_new_output, wayland_backend_config_release,
weston_wayland_output_config_init from compositor-wayland.c to main.c.
Not a single character is changed in those functions.
Create a glue function load_wayland_backend to use moved functions and
following the new load_*_backend style.
Signed-off-by: Benoit Gschwind <gschwind@gnu-log.net>
Acked-by: Quentin Glidic <sardemff7+git@sardemff7.net>
[Pekka: removed left-over entry from load_backend().]
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Preparing for libweston and for the separation of the code base into
libweston vs. weston the compositor, we must remove all uses
weston_config structures from the backends. We have decided that all
option and config input happens in the compositor (main.c), and
configuration is passed in for the backends as structs.
Most other backends have already converted, and this patch converts the
DRM-backend to the libweston-style init API.
The libweston-style init API includes a header for each backend (here
compositor-drm.h) defining the configuration interface. The compositor
(main.c) prepares a configuration struct to be passed through libweston
core to the backend during initialization.
A complication with the DRM-backend is that outputs can be hotplugged,
and their configuration needs to be fetched from the compositor
(main.c). For this, the config struct contains a callback member. The
output configuration API is subject to change later, this is just a
temporary API to get libweston forward.
As weston_compositor's user_data was not previously used for anything,
and the output configuration callback needs data, the user_data is set
to the 'config' pointer. This pointer is only used in
drm_configure_output() in main.c.
[Bryce: lots of stuff and rebasing]
Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Tested-by: Benoit Gschwind <gschwind@gnu-log.net>
[Pekka: write commit message]
[Pekka: squash in "drm: Don't hang onto the backend config object
post-backend_init" from Bryce Harrington]
[Pekka: drop the compositor.h hunk]
[Pekka: do not #include inside extern "C"]
[Pekka: remove incorrect comment about weston_drm_backend_config
ownership.]
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Use a "well" defined structure to configure x11-backend and move configuration
file parsing inside the weston compositor code.
Enforce destruction of all backend config objects after initialization.
Since the backend config struct versioning implies that there we expect
potential future descrepancy between main's definition of the config
object and the backend's, don't allow the backend to hang onto the
config object outside the initialization scope.
Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Giulio Camuffo <giuliocamuffo@gmail.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Benoit Gschwind <gschwind@gnu-log.net>
Tested-by: Benoit Gschwind <gschwind@gnu-log.net>
Implement a "well" defined API to configure the fbdev backend.
Following and according to discussion about libweston API
The output transform configuration is moved into weston and added to the
fbdev configuration structure.
Signed-off-by: Benoit Gschwind <gschwind@gnu-log.net>
[Pekka: squashed two patches and rebased.]
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Implement a "well" defined API to configure the rdp backend.
Following according to discution about libweston API.
Signed-off-by: Benoit Gschwind <gschwind@gnu-log.net>
Reviewed-by: David FORT <rdp.effort@gmail.com>
[Pekka: added missing headers to Makefile.am]
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
refactor configuration API of headless-backend
Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
v6:
- Define version number in the header
- Don't use leading underscores in header guards
- Add stub config_init_to_defaults()
- Allocate config on stack
- Drop unused display_name parameter
- Add error message when config is invalid
- Install compositor-headless.h and list it in headless-backend sources
v5:
- Update to current trunk
- Fixed typo 'struct weston_wayland_backend_config'
- Dropped unused variables
- Dropped weston_headless_backend_config_create() in favor of
directly zalloc'ing the object
- Dropped weston_headless_backend_load() in favor of the more
generalized load_backend_new().
- Dropped typedef from header
- Restored use of 'backend_init' entry point
- Backend_init() takes a base weston_backend_config object
- Renamed 'param' to 'config' in a few places for consistency
- Renamed 'headless_options' variable to 'options for consistency
- Version the base struct
- Free config on error
- Don't free config during backend_init normal operations
- Adjust header ordering
- Make header guard naming consistent with other headers
- Light reformatting for code style and consistency with other
backend config patches
Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Giulio Camuffo <giuliocamuffo@gmail.com>
[Pekka: rebased to apply before drm and x11 backends]
[Pekka: squashed in the headless part of "Enforce destruction of all
backend config objects after initialization"]
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Split from the patch "Enforce destruction of all backend config objects
after initialization".
Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
This reverts commit 5ffbfffaf7.
Restore load_backend_new() for use with libweston backend configuration.
Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Add a new boolean weston.ini option, "vt-switching" to enable or
disable Ctrl-Alt-Fn key combinations.
Signed-off-by: Bob Ham <bob.ham@collabora.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
(Derek Foreman changed the prototype for switch_vt_binding to
have a weston_keyboard * instead of weston_seat *. The pointer
wasn't used, so this is just a warning fix.)
This function is unused throughout the entire weston source tree, so
remove it. It seems that the "load_backend" function is the one
currently being used
Signed-off-by: Chris Michael <cp.michael@samsung.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
Add new configuration argument to the backend_init() function, which
will replace the current argc, argv, and config arguments.
After each backend is converted individually the unused parameters
will be removed.
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
CLOCK_BOOTTIME is a relatively new* feature that may not actually be
present everywhere (I'm looking at you wheezy). Since our use of it
is actually only cosmetic, I've just ifdef'd if.
* No it isn't.
Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: Giulio Camuffo <giuliocamuffo@gmail.com>
Armin Krezović
Bryce Harrington
Jussi Kukkonen
Giulio Camuffo
Pekka Paalanen
Benoit Gschwind
Bob Ham
Chris Michael
Derek Foreman