| // Copyright 2019 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 SRC_STORAGE_BLOBFS_RUNNER_H_ |
| #define SRC_STORAGE_BLOBFS_RUNNER_H_ |
| |
| #include <lib/async-loop/cpp/loop.h> |
| #include <lib/async-loop/default.h> |
| #include <lib/trace/event.h> |
| #include <lib/zx/resource.h> |
| |
| #include <fs/managed_vfs.h> |
| #include <fs/vfs.h> |
| #include <fs/vnode.h> |
| |
| #include "src/storage/blobfs/blobfs.h" |
| #include "src/storage/blobfs/mount.h" |
| |
| namespace blobfs { |
| |
| class QueryService; |
| |
| // A wrapper class around a "Blobfs" object which additionally manages |
| // external IPC connections. |
| // |
| // Using this interface, a caller can initialize a Blobfs object and access |
| // the filesystem hierarchy through the ulib/fs Vnode classes, but not modify |
| // the internal structure of the filesystem. |
| class Runner : public fs::ManagedVfs { |
| public: |
| DISALLOW_COPY_ASSIGN_AND_MOVE(Runner); |
| |
| virtual ~Runner(); |
| |
| static zx_status_t Create(async::Loop* loop, std::unique_ptr<BlockDevice> device, |
| const MountOptions& options, zx::resource vmex_resource, |
| zx::channel diagnostics_dir_server, std::unique_ptr<Runner>* out); |
| |
| // fs::ManagedVfs interface. |
| |
| void Shutdown(fs::Vfs::ShutdownCallback closure) final; |
| |
| // Other methods. |
| |
| // Serves the root directory of the filesystem using |root| as the server-end |
| // of an IPC connection. |
| zx_status_t ServeRoot(zx::channel root, ServeLayout layout); |
| |
| private: |
| Runner(async::Loop* loop, std::unique_ptr<Blobfs> fs); |
| |
| // Check if filesystem is readonly. |
| bool IsReadonly() FS_TA_EXCLUDES(vfs_lock_); |
| |
| async::Loop* loop_; |
| std::unique_ptr<Blobfs> blobfs_; |
| fbl::RefPtr<QueryService> query_svc_; |
| }; |
| |
| } // namespace blobfs |
| |
| #endif // SRC_STORAGE_BLOBFS_RUNNER_H_ |