* This implementation adds threads on the side of the client (script debugger).
* Some functions of the debugger are optimized.
* The profile is also now thread safe using atomics.
* The editor can switch between multiple threads when debugging.
This PR adds threaded support for the script language debugger. Every thread has its own thread local data and it will connect to the debugger using multiple thread IDs.
This means that, now, the editor can receive multiple threads entering debug mode at the same time.
When using the command line debugger (godot -d) on Unix systems, when
entering an EOF (ctrl+D), the debugger enters an infinite loop.
Adding a check for EOF in the debugger loop exits the debugger when EOF
is entered.
Fixes#50170.
On Linux, thread IDs were not properly assigned with the current approach.
The line:
`std::thread new_thread(&Thread::callback, _thread_id_hash(thread.get_id()), p_settings, p_callback, p_user);`
does not work because the thread ID is not assigned until the thread starts.
This PR changes the behavior to use manually generated thread IDs. Additionally, if a thread is (or may have been created) outside Godot, the method `Thread::attach_external_thread` was added.
As many open source projects have started doing it, we're removing the
current year from the copyright notice, so that we don't need to bump
it every year.
It seems like only the first year of publication is technically
relevant for copyright notices, and even that seems to be something
that many companies stopped listing altogether (in a version controlled
codebase, the commits are a much better source of date of publication
than a hardcoded copyright statement).
We also now list Godot Engine contributors first as we're collectively
the current maintainers of the project, and we clarify that the
"exclusive" copyright of the co-founders covers the timespan before
opensourcing (their further contributions are included as part of Godot
Engine contributors).
Also fixed "cf." Frenchism - it's meant as "refer to / see".
* Map is unnecessary and inefficient in almost every case.
* Replaced by the new HashMap.
* Renamed Map to RBMap and Set to RBSet for cases that still make sense
(order matters) but use is discouraged.
There were very few cases where replacing by HashMap was undesired because
keeping the key order was intended.
I tried to keep those (as RBMap) as much as possible, but might have missed
some. Review appreciated!
Forcing draw during debug break is now handled by ServersDebugger, and
only happens when the proper message is sent from the EditorDebugger
("servers:draw").
In a similar way, briging the window in foreground is now also handled
by ServersDebugger upon receiving "servers:foreground" which is sent by
the EditorDebugger when resuming from a break ("continue").
Implemented "output" event
Refactored "seq" field generation
Prevent debugging when editor and client are in different projects
Removed unneeded references to peer on the parser
Refactored way to detect project path
Implemented "setBreakpoints" request
Fix double events when terminating from client
Refactored "stopped" event
Implemented "stopped" with breakpoint event
Implemented "stackTrace", "scopes" and "variables" request
Report incoming number of stack dump variables
Implemented proper reporting of scopes and variables from stack frames
Prevent editor from grabbing focus when a DAP session is active
Implemented "next" and "stepIn" requests
Implemented "Source" checksum computing
Switched expected errors from macros to silent guards
Refactored message_id
Respect client settings regarding lines/columns behavior
Refactored nested DAP fields
Implement reporting of "Members" and "Globals" scopes as well
Fix error messages not being shown, and improved wrong path message
Make sure that RemoteDebuggerPeer wait at least 100us between polls
(effectively forcing a min tick of 100 microseconds).
This greatly improve performances (the call to poll was useless since
during low traffic, writes would always be available, and during high
traffic, reads would always be available, effectively making it a
busy-waiting loop). We could further improve this, by separating the two
polls, and adjust the min tick based on load, but this is most likely
more than enough already without sacrificing too much on high loads.
- Based on C++11's `thread` and `thread_local`
- No more need to allocate-deallocate or check for null
- No pointer anymore, just a member variable
- Platform-specific implementations no longer needed (except for the few cases of non-portable functions)
- Simpler for `NO_THREADS`
- Thread ids are now the same across platforms (main is 1; others follow)
Happy new year to the wonderful Godot community!
2020 has been a tough year for most of us personally, but a good year for
Godot development nonetheless with a huge amount of work done towards Godot
4.0 and great improvements backported to the long-lived 3.2 branch.
We've had close to 400 contributors to engine code this year, authoring near
7,000 commit! (And that's only for the `master` branch and for the engine code,
there's a lot more when counting docs, demos and other first-party repos.)
Here's to a great year 2021 for all Godot users 🎆
