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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_CALLBACK_TRACKER_INTERNAL_H_
#define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_CALLBACK_TRACKER_INTERNAL_H_
#include <memory>
#include <utility>
#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
namespace sync_file_system {
namespace drive_backend {
class CallbackTracker;
namespace internal {
class AbortHelper {
public:
explicit AbortHelper(CallbackTracker* tracker);
AbortHelper(const AbortHelper&) = delete;
AbortHelper& operator=(const AbortHelper&) = delete;
~AbortHelper();
base::WeakPtr<AbortHelper> AsWeakPtr();
static std::unique_ptr<AbortHelper> TakeOwnership(
const base::WeakPtr<AbortHelper>& abort_helper);
private:
raw_ptr<CallbackTracker> tracker_; // Not owned.
base::WeakPtrFactory<AbortHelper> weak_ptr_factory_{this};
};
template <typename>
struct InvokeAndInvalidateHelper;
template <typename... Args>
struct InvokeAndInvalidateHelper<void(Args...)> {
static void Run(const base::WeakPtr<AbortHelper>& abort_helper,
base::OnceCallback<void(Args...)> callback,
Args... args) {
std::unique_ptr<AbortHelper> deleter =
AbortHelper::TakeOwnership(abort_helper);
if (deleter) {
std::move(callback).Run(std::forward<Args>(args)...);
}
}
};
} // namespace internal
} // namespace drive_backend
} // namespace sync_file_system
#endif // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_CALLBACK_TRACKER_INTERNAL_H_
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