| // 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 LIB_VFS_CPP_REMOTE_DIR_H_ |
| #define LIB_VFS_CPP_REMOTE_DIR_H_ |
| |
| #include <lib/vfs/cpp/internal/directory.h> |
| |
| namespace vfs { |
| |
| // A remote directory holds a channel to a remotely hosted directory to |
| // which requests are delegated when opened. |
| // |
| // This class is designed to allow programs to publish remote filesystems |
| // as directories without requiring a separate "mount" step. In effect, |
| // a remote directory is "mounted" at creation time. |
| // |
| // It is not possible for the client to detach the remote directory or |
| // to mount a new one in its place. |
| class RemoteDir final : public vfs::internal::Directory { |
| public: |
| // Binds to a remotely hosted directory using the specified |
| // |fuchsia.io.Directory| client channel endpoint.The channel must be valid. |
| explicit RemoteDir(zx::channel remote_dir); |
| |
| // Binds to a remotely hosted directory using the specified |
| // InterfaceHandle. Handle must be valid. |
| explicit RemoteDir(fidl::InterfaceHandle<fuchsia::io::Directory> dir); |
| |
| ~RemoteDir() override; |
| |
| void OpenRemote(fuchsia::io::OpenFlags flags, uint32_t mode, std::string_view, |
| fidl::InterfaceRequest<fuchsia::io::Node> request) override; |
| |
| protected: |
| // |Node| implementation |
| zx_status_t Connect(fuchsia::io::OpenFlags flags, zx::channel request, |
| async_dispatcher_t* dispatcher) final; |
| |
| // |Directory| implementation |
| zx_status_t Readdir(uint64_t offset, void* data, uint64_t len, uint64_t* out_offset, |
| uint64_t* out_actual) final; |
| |
| NodeKind::Type GetKind() const final; |
| |
| private: |
| fuchsia::io::DirectorySyncPtr dir_ptr_; |
| }; |
| |
| } // namespace vfs |
| |
| #endif // LIB_VFS_CPP_REMOTE_DIR_H_ |