| // Copyright 2018 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef PERIDOT_BIN_LEDGER_APP_DISK_CLEANUP_MANAGER_H_ |
| #define PERIDOT_BIN_LEDGER_APP_DISK_CLEANUP_MANAGER_H_ |
| |
| #include <lib/fxl/functional/closure.h> |
| #include <lib/fxl/strings/string_view.h> |
| |
| #include "peridot/bin/ledger/app/page_usage_listener.h" |
| #include "peridot/bin/ledger/fidl/include/types.h" |
| #include "peridot/bin/ledger/storage/public/types.h" |
| |
| namespace ledger { |
| |
| // Manages cleanup operations in Ledger. |
| // |
| // Implementations of DiskCleanupManager define the policies about when and how |
| // each cleanup operation is executed in Ledger. |
| class DiskCleanupManager { |
| public: |
| DiskCleanupManager() {} |
| virtual ~DiskCleanupManager() {} |
| |
| // Sets the callback to be called every time the DiskCleanupManager is empty. |
| virtual void set_on_empty(fit::closure on_empty_callback) = 0; |
| |
| // Returns whether the DiskCleanupManager is empty, i.e. whether there are no |
| // pending operations. |
| virtual bool IsEmpty() = 0; |
| |
| // Tries to free up disk space. |
| virtual void TryCleanUp(fit::function<void(Status)> callback) = 0; |
| |
| private: |
| FXL_DISALLOW_COPY_AND_ASSIGN(DiskCleanupManager); |
| }; |
| |
| } // namespace ledger |
| |
| #endif // PERIDOT_BIN_LEDGER_APP_DISK_CLEANUP_MANAGER_H_ |