(Fixes #358.)
Subprocesses created for custom module scripts were previously left
running when the parent Waybar process exited. This patch sets the
parent-death signal of child processes (PR_SET_PDEATHSIG on Linux,
PROC_PDEATHSIG_CTL on FreeBSD) to SIGTERM.
Caveats:
* This uses Linux-specific or FreeBSD-specific calls. I don’t know if
this project targets other systems?
* There is a possibility that Waybar exits after calling `fork()`, but
before calling `prctl` to set the parent-death signal. In this case,
the child will not receive the SIGTERM signal and will continue to
run. I did not handle this case as I consider it quite unlikely, since
module scripts are usually launched only when Waybar starts. Please
let me know if you think it needs to be handled.
Testing:
* With `htop` open, run Waybar v0.9.5 with a custom module that has an
`exec` script. Terminate the Waybar process and notice that the
script’s subprocess stays alive and is now a child of the init
process.
* Run Waybar with this patch and follow the same steps as above. Notice
that this time the script’s subprocess terminates when the parent
exits.
Open rfkill device only once per module.
Remove rfkill threads and use `Glib::signal_io` as a more efficient way
to poll the rfkill device.
Handle runtime errors from rfkill and stop polling of the device instead
of crashing waybar.
Speedup battery state update by only updating the battery list when we
get a CREATE/DELETE event in the directory or whenever we do a full
refresh on the interval.
We are currently using this value once before it's initialized, since we
check it before we set it in Clock::calendar_text(). This was caught by
Valgrind, producing the following error:
==8962== Conditional jump or move depends on uninitialised value(s)
==8962== at 0x138285: date::operator==(date::year_month_day const&, date::year_month_day const&) (date.h:2793)
==8962== by 0x135F11: waybar::modules::Clock::calendar_text[abi:cxx11](waybar::modules::waybar_time const&) (clock.cpp:111)
==8962== by 0x13587C: waybar::modules::Clock::update() (clock.cpp:62)
==8962== by 0x156EFA: waybar::Bar::getModules(waybar::Factory const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)::{lambda()#1}::operator()() const (bar.cpp:577)
==8962== by 0x157F39: sigc::adaptor_functor<waybar::Bar::getModules(waybar::Factory const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)::{lambda()#1}>::operator()() const (adaptor_trait.h:256)
==8962== by 0x157D94: sigc::internal::slot_call0<waybar::Bar::getModules(waybar::Factory const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)::{lambda()#1}, void>::call_it(sigc::internal::slot_rep*) (slot.h:136)
==8962== by 0x5177B21: Glib::DispatchNotifier::pipe_io_handler(Glib::IOCondition) (in /usr/lib/libglibmm-2.4.so.1.3.0)
==8962== by 0x517DB5B: Glib::IOSource::dispatch(sigc::slot_base*) (in /usr/lib/libglibmm-2.4.so.1.3.0)
==8962== by 0x5188B96: Glib::Source::dispatch_vfunc(_GSource*, int (*)(void*), void*) (in /usr/lib/libglibmm-2.4.so.1.3.0)
==8962== by 0x5CBC913: g_main_context_dispatch (in /usr/lib/libglib-2.0.so.0.6600.2)
==8962== by 0x5D107D0: ??? (in /usr/lib/libglib-2.0.so.0.6600.2)
==8962== by 0x5CBB120: g_main_context_iteration (in /usr/lib/libglib-2.0.so.0.6600.2)
Initialize the value to prevent the error.
Invisible bar on a `top` layer would still intercept pointer events and
stop them from reaching windows below. Always changing the layer to
to `bottom` along with making bar invisible would prevent that.
Extract two surface implementations from the bar class: GLSSurfaceImpl
and RawSurfaceImpl. This change allowed to remove _all_ surface type
conditionals and significantly simplify the Bar code.
The change also applies PImpl pattern to the Bar, allowing to remove
some headers and fields from `bar.hpp`.
Other units are all uppercased, so using an uppercased "K" makes it look more consistent (especially when {bandwidthUpBits} or something like that is used).
- Add MPD module option `password`, and document it.
- Add logic to send the password, directly after connecting to
MPD.
Fixes: #576
Signed-off-by: Joseph Benden <joe@benden.us>
Fix MPD connection issues by converting/rewriting module into a
state-machine driven system. It is fully single-threaded and uses
events for transitioning between states. It supports all features
and functionality of the previous MPD module.
Signed-off-by: Joseph Benden <joe@benden.us>
Fix MPD connection issues by converting/rewriting module into a
state-machine driven system. It is fully single-threaded and uses
events for transitioning between states. It supports all features
and functionality of the previous MPD module.
Signed-off-by: Joseph Benden <joe@benden.us>
When forkExec is called it begins to ignore all SIGCHLD signals for
the rest of the progam's execution so that they are automatically
reaped. However, this means that subsequent waitpid calls in the exec
function will always fail. So instead handle SIGCHLD by reaping any
processes created by forkExec and ignoring all others so that they can be
handled directly by the exec function.
If there are multiple icon themes defined in the config option
'icon-theme' the module will try from left to right to find an icon.
The system default will always be added to this list.
Previously, clicking on the same workspace you were on would throw you
to another workspace if `workspace_auto_back_and_forth yes` was
specified in your sway config. This also fixes workspace output moving
misbehaving and doing the same.
In file included from ../src/modules/custom.cpp:1:
In file included from ../include/modules/custom.hpp:7:
../include/util/command.hpp:15:25: error: implicit instantiation of undefined template 'std::__1::array<char, 128>'
std::array<char, 128> buffer = {0};
^
../src/modules/pulseaudio.cpp:175:41: error: implicit instantiation of undefined template 'std::__1::array<std::__1::basic_string<char>, 9>'
static const std::array<std::string, 9> ports = {
^
/usr/include/c++/v1/__tuple:223:64: note: template is declared here
template <class _Tp, size_t _Size> struct _LIBCPP_TEMPLATE_VIS array;
^
In file included from ../src/factory.cpp:1:
In file included from ../include/factory.hpp:8:
../include/modules/sway/workspaces.hpp:39:8: error: no template named 'unordered_map' in namespace 'std'
std::unordered_map<std::string, Gtk::Button> buttons_;
~~~~~^
../src/factory.cpp:20:14: error: cannot initialize return object of type 'waybar::AModule *' with an rvalue of type 'waybar::modules::sway::Workspaces *'
return new waybar::modules::sway::Workspaces(id, bar_, config_[name]);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The approximation should include SReclaimable, and subtract Shmem. To
prevent the parsing code from ballooning in size, this commit also
refactors the parsing into a map.
When you have multiple sinks (resp. sources), the module used to display
the state of the most recently changed one. This changes remembers the
default sink name, and only records changes to that one.
Ipc destructor closes socket and thus wakes up SleeperThread which was
waiting for socket data in Ipc::handleEvent.
Ipc::handleEvent then proceeds with sending signal to already destroyed
object, causing heap-use-after-free Address Sanitizer error.
