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// Copyright 2014 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 "device/udev_linux/udev_loader.h"
#include <memory>
#include "base/check.h"
#include "device/udev_linux/udev0_loader.h"
#include "device/udev_linux/udev1_loader.h"
namespace device {
namespace {
UdevLoader* g_udev_loader = NULL;
} // namespace
// static
UdevLoader* UdevLoader::Get() {
if (g_udev_loader)
return g_udev_loader;
std::unique_ptr<UdevLoader> udev_loader;
udev_loader.reset(new Udev1Loader);
if (udev_loader->Init()) {
g_udev_loader = udev_loader.release();
return g_udev_loader;
}
udev_loader.reset(new Udev0Loader);
if (udev_loader->Init()) {
g_udev_loader = udev_loader.release();
return g_udev_loader;
}
CHECK(false);
return nullptr;
}
// static
void UdevLoader::SetForTesting(UdevLoader* loader, bool delete_previous) {
if (g_udev_loader && delete_previous)
delete g_udev_loader;
g_udev_loader = loader;
}
UdevLoader::~UdevLoader() = default;
} // namespace device
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