blob: 96e8dc397aaf9f558748c0452c088d9e098df962 [file] [log] [blame]
// Copyright 2017 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.
#include <lib/zx/vmo.h>
#include "src/lib/storage/vfs/cpp/vfs_types.h"
#include "src/storage/memfs/memfs.h"
#include "src/storage/memfs/vnode.h"
namespace memfs {
class VnodeFile final : public Vnode {
explicit VnodeFile(Memfs& memfs);
~VnodeFile() final;
fs::VnodeProtocolSet GetProtocols() const final;
zx_status_t CreateStream(uint32_t stream_options, zx::stream* out_stream) final;
void DidModifyStream() final;
zx_status_t Truncate(size_t len) final;
zx_status_t GetAttributes(fs::VnodeAttributes* a) final;
zx_status_t GetNodeInfoForProtocol(fs::VnodeProtocol protocol, fs::Rights rights,
fs::VnodeRepresentation* info) final;
zx_status_t GetVmo(fuchsia_io::wire::VmoFlags flags, zx::vmo* out_vmo) final;
zx_status_t CloseNode() final;
void Sync(SyncCallback closure) final;
bool SupportsClientSideStreams() final;
zx_status_t CreateBackingStoreIfNeeded() __TA_REQUIRES(mutex_);
// Returns the content size of |paged_vmo()|. Requires |paged_vmo()| to be valid.
uint64_t GetContentSize() const __TA_REQUIRES_SHARED(mutex_);
// Checks to see if the contents of this file were modified since the last time this method was
// called. If the file was modified then the mtime is updated and inotify events are sent.
void UpdateModifiedIfVmoChanged() __TA_REQUIRES_SHARED(mutex_);
[[maybe_unused]] Memfs& memfs_;
} // namespace memfs