cef/libcef_dll/base/cef_atomic_flag.cc

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// Copyright (c) 2011 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 "include/base/cef_atomic_flag.h"
#include "include/base/cef_logging.h"
namespace base {
AtomicFlag::AtomicFlag() {
// It doesn't matter where the AtomicFlag is built so long as it's always
// Set() from the same sequence after. Note: the sequencing requirements are
// necessary for IsSet()'s callers to know which sequence's memory operations
// they are synchronized with.
set_thread_checker_.DetachFromThread();
}
AtomicFlag::~AtomicFlag() = default;
void AtomicFlag::Set() {
DCHECK(set_thread_checker_.CalledOnValidThread());
flag_.store(1, std::memory_order_release);
}
void AtomicFlag::UnsafeResetForTesting() {
set_thread_checker_.DetachFromThread();
flag_.store(0, std::memory_order_release);
}
} // namespace base