Commit Graph

41 Commits

Author SHA1 Message Date
Patrick Ziegler
56779a5902
Make the event loop return shared_ptrs (#2842)
* Return shared_ptr from eventloop

* Add -Wdeprecated-copy-dtor warning

Produces a warning if classes don't have explicit copy operations if
they have a user-defined constructor.
This helps us stick to the rule of 5 (kinda, no warnings for missing
move operators).

* Clean up eventloop

* Fix compiler warnings

* Fix fs_event_handle_t name
2022-10-15 23:21:40 +02:00
Patrick Ziegler
1d4e30c4be
fix: Handle X events before polling for IO (#2820)
* Use m_connection.poll_for_event

* fix: Handle X events before polling for IO

Polling the XCB file descriptor for X events doesn't detect events that
are already in XCB's event queue but not yet handled.

If this happens, the eventloop polls for IO and the queued events wait
until another event arrives, causing some desyncs in the bar.

This can easily happen if something (e.g. a click event) triggers some
xcb calls, which as a consequence buffer some incoming events.

We "fix" this by adding a libuv prepare handle (which runs right before
polling for IO) that processes pending X events.
2022-09-13 14:21:36 +02:00
Patrick Ziegler
62da14e30d
Use @ for doxygen commands (#2597) 2022-02-20 21:40:48 +01:00
Patrick Ziegler
c2f087225c
Eventloop cleanup (#2577)
* eventloop: Use eventloop namespace in cpp files

* changelog: Add missing deprecated hook message

* Make eventloop and ipc classes non-copyable and non-movable

* Remove functional.hpp

* eventloop: Don't close handles in error cases

Client should be responsible for closing handles.

* eventloop: Address invalidation of handle references
2022-01-22 22:00:26 +01:00
Patrick Ziegler
3356188056
Use sockets for IPC (#2539)
Deprecates not using `polybar-msg` for IPC.

Fixes #2532
Closes #2465
Fixes #2504

* Create FIFO specific NamedPipeHandle subclass to PipeHandle

* Prototype SocketHandle

* Move mainloop up to main.cpp

* Pass eventloop to ipc class

* Deprecate sending ipc over the named pipe

Unfortunately, we can only show the warning in the polybar log and not
give the user any feedback because the pipe is one-way

* Move eventloop into its own namespace

* Prototype ipc socket handling

* Remove handles from ipc_client

Should be independent from eventloop logic

* Remove ipc clients when finished

* Add tests for ipc_client decoding

* Add callback for complete ipc messages

* Remove template param from mixins

* Move signal handler to new callback system

* Move poll handle to new callback system

* Move FSEventHandle to new callback system

* Move TimerHandle and AsyncHandle to new callback system

* Move PipeHandle to new callback system

* Implement socket functionality in new callback system

* Correctly reset ipc named pipe handle

* Let client close handles in error callback

* Wrap client pipe and ipc::client in connection class

* Better decoder log messages

* Socket path logic

* Fix CI warnings

* Remove UVHandleGeneric

* Fix error when socket folder already exists

* Proof of concept message writeback

* Restructure ipc files

* polybar-msg: Use sockets

* polybar-msg: Better syntax for actions

* Fix memory leak with fifo

After EOF, the pipe wasn't closed and EOF was called all the time, each
time allocating a new pipe.

* Make polybar-msg compile on its own

* Rudimentary writeback for polybar-msg

* Fix payload reference going out of scope.

* Add IPC documentation

* Cleanup polybar-msg code

* Specify the v0 ipc message format

* Close ipc connection after message

* Fix ipc tests

* Properly close ipc connections

* Fix polybar-msg not working with action string

* Write polybar-msg manpage

* polybar-msg: Stop using exit()

* ipc: Print log message with PID

* Add tests for ipc util

* polybar-msg: Print PID with success message

* ipc: Propagate message errors

* Rename ipc::client to ipc::decoder

* Rename ipc.cpp to polybar-msg.cpp

* ipc: Write encoder function and fix decoder bugs

* ipc: Use message format for responses

* ipc: Handle wrong message types

* ipc: Write back error message if ipc message cannot be processed

This only happens for commands and empty actions.
Non-empty actions are not immediately executed, but deferred until the
next loop iteration.

* Remove TODO about deleting runtime directory

The socket file is not deleted after socket.close() is called, only
after libuv executes the close callback.
So we can't just call rmdir because it will probably always fail.

* CLeanup WriteRequest

* Update manpage authors

* Cleanup
2022-01-22 20:35:37 +01:00
Patrick Ziegler
444120e664
script: Fix concurrency issues (#2518)
Fixes #1978

* Move tail and non-tail handler to method

Defining them in the constructor is ugly.

* script: Iterate over defined actions instead of fixed list

* Separate running logic and lock m_output

* Include POLYBAR_FLAGS in linker flags

* Stop using m_prev in script_runner

* Join module threads in stop function

Joining in the destructor may lead to UB because the subclass is already
deconstructed but the threads may still require it to be around (e.g.
for calling any functions on the instance)

* Cleanup script module

* Update changelog

* Remove AfterReturn class

* Remove m_stopping from script module

* Fix polybar not reading the entire line from child process.

For every `readline` call we created a new fd_streambuf. This means once
`readline` returns, the streambuf is destructed and and pending data in
its temporary buffer discarded and we never actually read it.

* Remove unused includes
2021-10-03 01:27:11 +02:00
Patrick Ziegler
8afd5b71df
Integrate bar taskqueue into eventloop (#2510)
* Remove DEBUG_SHADED

Was disabled by default AND behind an #if 0

* Make TimerHandle expose more libuv functions

* Prepare for moving double clicks into eventloop

* Make eventloop available to bar

* Remove bar mutex

Everything in the bar is now in the same thread

* Move double-click handling to eventloop

* Extract double click deferred function into method

* Stop throttling clicks

* Increase double click interval to 400 and add option

double-click-interval in the bar section

Closes #1441

* Implement dimming using timer handles

* Remove taskqueue

* Remove unused dependencies

* Cleanup & Comments
2021-09-27 17:35:45 +02:00
patrick96
386eb57ba7 Reopen pipe path on EOF 2021-09-21 20:36:23 +02:00
patrick96
77b9cffaf8 Cleanup 2021-09-21 20:36:23 +02:00
patrick96
a158f0d7ec Add error callback for ipc handle 2021-09-21 20:36:23 +02:00
patrick96
895c1a6b51 Handle fs_event and poll errors in handle wrapper 2021-09-21 20:36:23 +02:00
patrick96
db52106934 Support receiving IPC messages in multiple parts 2021-09-21 20:36:23 +02:00
patrick96
511e73b3b5 Close handles in destructor 2021-09-21 20:36:23 +02:00
patrick96
91759a4c96 Store all handles inside eventloop
This is needed because the handle's lifetime has to be at least the
lifetime of the eventloop since the eventloop requires the handle's
memory during shutdown (for closing the handles).
2021-09-21 20:36:23 +02:00
patrick96
2551ea0205 Add wrapper for uv_async_t 2021-09-21 20:36:23 +02:00
patrick96
7b5285b51e Add wrapper for uv_timer_t 2021-09-21 20:36:23 +02:00
patrick96
309fd8221a Create wrapper for uv_pipe_t 2021-09-21 20:36:23 +02:00
patrick96
88cd525dc8 Add wrapper for uv_pipe_t 2021-09-21 20:36:23 +02:00
patrick96
9d9fe8bffb Better error handling 2021-09-21 20:36:23 +02:00
patrick96
53ce1ae414 Move config watcher into eventloop 2021-09-21 20:36:23 +02:00
patrick96
f9d434052a Make UV handle wrappers more generic 2021-09-21 20:36:23 +02:00
patrick96
60ee63c0db eventloop: Throw exception for libuv errors 2021-09-21 20:36:23 +02:00
patrick96
3cc17a0e57 Move signal handling to eventloop class 2021-09-21 20:36:23 +02:00
patrick96
a2f50f3b90 Use uv_pipe_t for ipc 2021-09-21 20:36:23 +02:00
Michael Carlberg
a89c4ef2dd refactor: Move all event handling to the controller 2016-12-20 05:16:04 +01:00
Michael Carlberg
a0d485f79d refactor: Initialize data 2016-12-15 09:30:31 +01:00
Michael Carlberg
f9062d031c refactor(clang-tidy): Apply fixes 2016-12-15 03:30:41 +01:00
Michael Carlberg
4c36d65cbe fix(eventloop): Acquire lock guard 2016-12-14 19:04:33 +01:00
Michael Carlberg
8c3f40db5b refactor(eventloop): Use config wrapper 2016-12-14 11:01:44 +01:00
Michael Carlberg
eca870774f fix: Handle single input events 2016-12-14 11:01:44 +01:00
Michael Carlberg
4fca0c89b4 refactor: Object construction 2016-12-14 11:01:44 +01:00
Michael Carlberg
1a2a6e5fab refactor: Construction methods 2016-12-14 11:01:44 +01:00
Michael Carlberg
08be86fbe1 wip(refactor): Improve signal and event handling 2016-12-14 11:01:44 +01:00
Michael Carlberg
df85a6492e refactor(eventloop): Typed events 2016-12-03 23:00:41 +01:00
Michael Carlberg
c6540a8950 refactor: Signaling 2016-12-01 08:56:16 +01:00
Michael Carlberg
c2acdff7d4 feat(eventloop): Delayed enqueue
A new worker that will block the queue channel
until the delayed event has been processed.

This is used to limit the amount of X button events
within defined time frame and we can't block
the main X thread.
2016-11-25 21:58:51 +01:00
Michael Carlberg
ff9be848c7 refactor(clang-tidy): Apply fixes 2016-11-25 21:58:49 +01:00
Michael Carlberg
c6d85b2b92 refactor: Optimize build 2016-11-20 23:04:31 +01:00
Michael Carlberg
fd57ab0f3d fix: project rename 2016-11-19 06:26:07 +01:00
Michael Carlberg
e7cb345cec wip: Separate source from definitions 2016-11-03 12:54:32 +01:00
Michael Carlberg
1075144b00 refactor(eventloop): Use concurrent queue for events
Events are now enqueued using a thread safe concurrent queue
which makes the previous eventloop locking redundant.
2016-10-29 06:48:51 +02:00