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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/threading/platform_thread.h"
#include "base/task/current_thread.h"
#include "base/threading/thread_id_name_manager.h"
#include "base/trace_event/trace_event.h"
#if BUILDFLAG(IS_FUCHSIA)
#include "base/fuchsia/scheduler.h"
#endif
namespace base {
namespace {
constinit thread_local ThreadType current_thread_type = ThreadType::kDefault;
} // namespace
void PlatformThreadId::WriteIntoTrace(perfetto::TracedValue&& context) const {
perfetto::WriteIntoTracedValue(std::move(context), value_);
}
// static
void PlatformThreadBase::SetCurrentThreadType(ThreadType thread_type,
bool may_change_affinity) {
MessagePumpType message_pump_type = MessagePumpType::DEFAULT;
if (CurrentIOThread::IsSet()) {
message_pump_type = MessagePumpType::IO;
} else if (CurrentUIThread::IsSet()) {
message_pump_type = MessagePumpType::UI;
}
CHECK_LE(thread_type, ThreadType::kMaxValue);
internal::SetCurrentThreadTypeImpl(thread_type, message_pump_type,
may_change_affinity);
current_thread_type = thread_type;
}
// static
ThreadType PlatformThreadBase::GetCurrentThreadType() {
return current_thread_type;
}
// static
std::optional<TimeDelta> PlatformThreadBase::GetThreadLeewayOverride() {
#if BUILDFLAG(IS_FUCHSIA)
// On Fuchsia, all audio threads run with the CPU scheduling profile that uses
// an interval of |kAudioSchedulingPeriod|. Using the default leeway may lead
// to some tasks posted to audio threads to be executed too late (see
// http://crbug.com/1368858).
if (GetCurrentThreadType() == ThreadType::kRealtimeAudio) {
return kAudioSchedulingPeriod;
}
#endif
return std::nullopt;
}
// static
void PlatformThreadBase::SetNameCommon(const std::string& name) {
ThreadIdNameManager::GetInstance()->SetName(name);
}
} // namespace base
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