This PR changes the format check on CI to use the command added in
https://github.com/flutter/engine/pull/50747.
Additionally, while making this change, I noticed that the CI check was
not checking the formatting of all files, and that as a result, files
were present in the repo with incorrect formatting. I have fixed the
formatting and fixed the check to always check all files.
This is a fix forward alternative to the revert here: https://github.com/flutter/engine/pull/50581
If the revert lands first I'll rebase into this. I'm working on verifying this locally against the devicelab tests.
Adds more dynamic method lookups in service of https://github.com/flutter/flutter/issues/143105
Moves the TU out to FML so that Impeller can more easily use it.
Adds checking on `AHardwareBuffer_getId` so that it checks the return value before returning what is potentially garbage.
Adds some smoke tests to make sure these things actually work/look up meaningful symbols. Test is in the shell because we have testing infra for this kind of thing there.
Fixes https://github.com/flutter/flutter/issues/142488
- Only logs on iOS if Skia is used instead of Impeller.
- Logs on other platforms if Impeller is used instead of Skia.
- Uses "IMPORTANT" rather than "ERROR" for these logs. This will show up by default since flutter_tools sets ERROR and above as logs to show.
- Adds some tests.
- Makes INFO log print file paths the same as other verbosities.
The number of arguments are not used.
And also, even if we need it in the future, they can be derived at compile time:
```cpp
template <typename T>
struct function_traits;
template <typename Ret, typename... Args>
struct function_traits<Ret(Args...)>
{
using params = std::tuple<Args...>;
};
template <typename T>
constexpr std::size_t get_parameter_count() {
return std::tuple_size<typename function_traits<T>::params>::value;
}
template <typename T>
struct member_function_traits;
template <typename C, typename Ret, typename... Args>
struct member_function_traits<Ret(C::*)(Args...)>
{
using params = std::tuple<Args...>;
};
template <typename T>
constexpr std::size_t get_member_function_parameter_count() {
return std::tuple_size<typename member_function_traits<T>::params>::value;
}
```
(I got the code above with ChatGPT but I verified that they work)
[C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style
Flutter implements the UI isolates message via posting to a UI task queue. That task queue has a primary and a secondary queue. The
* primary is used for running tasks resulated to framework (e.g. draw frame)
* secondary is used to run Dart event loop messages (e.g. received data on a socket)
The Dart semantics requires running microtasks before processing the next event loop message.
The way flutter implements by attaching an observer to the secondary queue. Every time a task from the queue is run, all observers are run and one of them is going to run pending microtasks.
In some situations the engine pauses the dart event loop. The terminology used in the code is "microtask" when in reality what it means is "event loop".
=> This PR changes this terminology to reflect what actually happens.
This change migrates off of the old fuchsia logging apis to use the
structured logging apis. The initial FIDL connection is made during
global initialization (before main()) and the initial minimum log level
is queried from the system. Later on, once the main loop is initialized,
we setup an async task to listen for additional log interest changes
from the system. The advantage of doing this on the main loop is that we
avoid spawning an additional background thread in the process (the
legacy logging apis use the background thread approach).
One added benefit of this change is it reduces the size of the
dart/flutter runner far packages by about 250kb in release mode, because
libsyslog.so and libbackend_fuchsia_globals.so are no longer needed.
flutter/flutter#141924
## Pre-launch Checklist
- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide] and the [C++,
Objective-C, Java style guides].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] I added new tests to check the change I am making or feature I am
adding, or the PR is [test-exempt]. See [testing the engine] for
instructions on writing and running engine tests.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I signed the [CLA].
- [x] All existing and new tests are passing.
If you need help, consider asking for advice on the #hackers-new channel
on [Discord].
<!-- Links -->
[Contributor Guide]:
https://github.com/flutter/flutter/wiki/Tree-hygiene#overview
[Tree Hygiene]: https://github.com/flutter/flutter/wiki/Tree-hygiene
[test-exempt]:
https://github.com/flutter/flutter/wiki/Tree-hygiene#tests
[Flutter Style Guide]:
https://github.com/flutter/flutter/wiki/Style-guide-for-Flutter-repo
[C++, Objective-C, Java style guides]:
https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style
[testing the engine]:
https://github.com/flutter/flutter/wiki/Testing-the-engine
[CLA]: https://cla.developers.google.com/
[flutter/tests]: https://github.com/flutter/tests
[breaking change policy]:
https://github.com/flutter/flutter/wiki/Tree-hygiene#handling-breaking-changes
[Discord]: https://github.com/flutter/flutter/wiki/Chat
The thread_local storage class was not available pre-C++11. Even when C++11 was available, the C++ runtime in versions of iOS <= 9.0 was not capable of supporting this storage class. So we ended up using pthread directly in that case. The unique pointer support was added later. Now that the storage class has been supported on all Flutter platforms for a while, we can remove the fallback and remove a bunch of code. The ThreadLocalUniquePtr can be removed too but that can be attempted in a separate migration.
This is more-or-less a revert of https://github.com/flutter/engine/pull/14011
This code never ended up being used outside of tests, and it's not how we handle asset loading at this point anyway.
I was hopeful we could kill off all runtime dependencies on Dart in `FML` when looking at this, but it looks like trace_event.h still wants to import dart_api_tools.h for some Dart enum types. This may or may not matter if we ever want to build FML for web/wasm. /cc @eyebrowsoffire. If we really need to do that, we can refactor the trace event stuff so that it has a web and Dart implementation that's selected at build time.
Introduce weak_nsobject from chromium.
There are some usages of weak_ptr wrapping Objective-C ids, weak_ptr is not really designed for ids and such usages are blocking the arc migration.
This PR mostly copies the weak_nsobject from chromium, at the same hash that we copied the ARC/MRC compatible scoped_nsobject: fd625125b8
To match how we used weak_ptr for those ids, I made some changes to the weak_nsobject:
- WeakNSObjects needs to be generated by a WeakNSObjectFactory. The WeakNSObjectFactory is owned by the objc class and acts as the generator of the WeakNSObjects. All the WeakNSObjects' derefing thread should be the same of the WeakNSObjectFactory's creation thread.
- chromuim's WeakNSObjects can be detached from the thread and re-attached to a new thread. To match our weak_ptr behavior, I changed WeakNSObjects to be only accessed from a single thread, the same as weak_ptr
This PR also moves the FlutterEngine to use WeakNSObject and updated related classes.
part of https://github.com/flutter/flutter/issues/137801
[C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style
This PR is to address an issue we're seeing compiling flutter+impeller in certain configurations. Specifically:
1. Compiling with `clang-15`
2. using the GCC 13 backend to provide headers and cstdlib.
Via the `clang-15` version flag:
```
clang-15 -v
Debian clang version 15.0.7
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/11
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/12
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/13
Selected GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/13
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64
```
We were building using the gcc 12 backend for a while, but picked up an update that forced us to 13, and then saw this issue.
The issue is seen as `uint8_t` being undefined as in the following partial messages:
```
hex_codec.cc:18:5: error: unknown type name 'uint8_t'
base32.cc:29:32: error: unknown type name 'uint8_t'
```
I'm not sure this is the cleanest fix, or if it might be better handled by adding some compile time switches, but I wanted to provide this to start conversation.
I'm also hoping to get a better idea of tests run against a PR. If there's any I should run manually we can discuss that here.
[C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style
Rather than doing a guess and check, since we have all of our cmds already stored we can add up the binding counts and allocate the exact descriptor size and populate them in one call.
Also makes render_pass and compute_pass share more (though not all) code.
Fixes the following:
c8aa0844f2 results in the following error appearing internally when compiling for Android:
```
In file included from fml/synchronization/sync_switch.cc:5:
./fml/synchronization/sync_switch.h:74:34: error: implicit instantiation of undefined template 'std::vector<fml::SyncSwitch::Observer *>'
mutable std::vector<Observer*> observers_;
^
<...>: note: template is declared here
class _LIBCPP_TEMPLATE_VIS vector;
^
1 error generated.
```
*List which issues are fixed by this PR. You must list at least one issue.*
b/306266542
[C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style
The newly rolled version of clang-tidy is warning about some accesses to std::optional values. The function does a has_value check before accessing the values, but the analyzer does not detect that.
Work towards https://github.com/flutter/flutter/issues/134969.
These are all self-contained, so I bundled them all together.
All fixes are generated by `clang-tidy --fix`, and manual search/replace if that wasn't sufficient.
This is required to eventually land https://github.com/flutter/flutter/issues/134969 (lint header files).
No changes in behavior in this PR. Future steps:
- Change existing `LOG_X` references to `kLogX`
- Delete `LOG_X`
https://github.com/flutter/flutter/issues/134452
This patch parses the speed of all CPU data out of /proc and constructs a table that allows us to request high level CPU affinities: performance, efficiency, and not performance. These affinties are applied where appropriate during Android thread construction.
`UnMergeNowIfLastOne` is called during shell destruction. When there are other shells with threads unmerged and the current destroying shell with thread merged. `UnMergeNowIfLastOne` should unmerge the threads.
This PR Make `UnMergeNowIfLastOne` not only unmerge if the current merger is the last merger, but also unmerge if the current merger is the last merger that is merged.
Fixes https://github.com/flutter/flutter/issues/127168
[C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style
