cef/libcef/common/waitable_event_impl.cc

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// Copyright 2016 The Chromium Embedded Framework 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 "libcef/common/waitable_event_impl.h"
#include "include/cef_task.h"
#include "base/notreached.h"
#include "base/time/time.h"
namespace {
bool AllowWait() {
if (CefCurrentlyOn(TID_UI) || CefCurrentlyOn(TID_IO)) {
DCHECK(false) << "waiting is not allowed on the current thread";
return false;
}
return true;
}
} // namespace
// static
CefRefPtr<CefWaitableEvent> CefWaitableEvent::CreateWaitableEvent(
bool automatic_reset,
bool initially_signaled) {
return new CefWaitableEventImpl(automatic_reset, initially_signaled);
}
CefWaitableEventImpl::CefWaitableEventImpl(bool automatic_reset,
bool initially_signaled)
: event_(automatic_reset ? base::WaitableEvent::ResetPolicy::AUTOMATIC
: base::WaitableEvent::ResetPolicy::MANUAL,
initially_signaled
? base::WaitableEvent::InitialState::SIGNALED
: base::WaitableEvent::InitialState::NOT_SIGNALED) {}
void CefWaitableEventImpl::Reset() {
event_.Reset();
}
void CefWaitableEventImpl::Signal() {
event_.Signal();
}
bool CefWaitableEventImpl::IsSignaled() {
return event_.IsSignaled();
}
void CefWaitableEventImpl::Wait() {
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if (!AllowWait()) {
return;
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}
event_.Wait();
}
bool CefWaitableEventImpl::TimedWait(int64_t max_ms) {
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if (!AllowWait()) {
return false;
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}
return event_.TimedWait(base::Milliseconds(max_ms));
}