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[fuchsia] Write trace profiles for v2 components (flutter/engine#36186)

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Ben Bergkamp 2022-09-22 14:46:38 -05:00 committed by GitHub
parent 1c09d84078
commit 4fcf481fb3
1 changed files with 14 additions and 11 deletions
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25
engine/src/flutter/shell/platform/fuchsia/flutter/runner.cc
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@ -398,17 +398,20 @@ void Runner::SetupTraceObserver() {
runner->prolonged_context_ = trace_acquire_prolonged_context();
Dart_StartProfiling();
} else if (trace_state() == TRACE_STOPPING) {
for (auto& it : runner->active_components_v1_) {
fml::AutoResetWaitableEvent latch;
fml::TaskRunner::RunNowOrPostTask(
it.second.platform_thread->GetTaskRunner(), [&]() {
it.second.component->WriteProfileToTrace();
latch.Signal();
});
latch.Wait();
}
// TODO(fxb/50694): Write v2 component profiles to trace once we're
// convinced they're stable.
auto write_profile_trace_for_components = [](auto& components) {
for (auto& it : components) {
fml::AutoResetWaitableEvent latch;
fml::TaskRunner::RunNowOrPostTask(
it.second.platform_thread->GetTaskRunner(), [&]() {
it.second.component->WriteProfileToTrace();
latch.Signal();
});
latch.Wait();
}
};
write_profile_trace_for_components(runner->active_components_v1_);
write_profile_trace_for_components(runner->active_components_v2_);
Dart_StopProfiling();
trace_release_prolonged_context(runner->prolonged_context_);
}