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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/platform/waitable_event.h"
#include <vector>
#include "base/optional.h"
#include "base/synchronization/waitable_event.h"
#include "third_party/blink/renderer/platform/heap/thread_state.h"
namespace blink {
WaitableEvent::WaitableEvent(ResetPolicy policy, InitialState state) {
impl_ = std::make_unique<base::WaitableEvent>(
policy == ResetPolicy::kManual
? base::WaitableEvent::ResetPolicy::MANUAL
: base::WaitableEvent::ResetPolicy::AUTOMATIC,
state == InitialState::kSignaled
? base::WaitableEvent::InitialState::SIGNALED
: base::WaitableEvent::InitialState::NOT_SIGNALED);
}
WaitableEvent::~WaitableEvent() = default;
void WaitableEvent::Reset() {
impl_->Reset();
}
void WaitableEvent::Wait() {
impl_->Wait();
}
void WaitableEvent::Signal() {
impl_->Signal();
}
size_t WaitableEvent::WaitMultiple(const WTF::Vector<WaitableEvent*>& events) {
std::vector<base::WaitableEvent*> base_events;
for (size_t i = 0; i < events.size(); ++i)
base_events.push_back(events[i]->impl_.get());
size_t idx =
base::WaitableEvent::WaitMany(base_events.data(), base_events.size());
DCHECK_LT(idx, events.size());
return idx;
}
} // namespace blink
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