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https://github.com/facebook/sapling.git
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ec5a6ef1f0
Summary: The NFS readdir turns out to be pretty similar to the FUSE one, with a couple of differences. For one, it only populates the directory entry name, it also puts a limit on the total size of the serialized result, including all the NFS/XDR overhead. It is not specified if the . and .. entries need to be returned, but since the NFS spec is usually pretty explicit about these and makes it clear that this is for the most part a client burden, I didn't add these. I may have to revisit this later when I get to manually browse a repository. Since the READDIR RPC doesn't populate any filehandle, the client will have to issue a LOOKUP RPC for each entries, potentially leading to some inefficiencies. A future diff will implement the READDIRPLUS to fix these. Reviewed By: chadaustin Differential Revision: D26802310 fbshipit-source-id: b821b57021d0c2dca33427975b1acd665173bc5c
104 lines
2.6 KiB
C++
104 lines
2.6 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This software may be used and distributed according to the terms of the
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* GNU General Public License version 2.
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*/
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#pragma once
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#ifndef _WIN32
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#include "eden/fs/nfs/NfsDispatcher.h"
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namespace facebook::eden {
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class EdenMount;
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class InodeMap;
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class NfsDispatcherImpl : public NfsDispatcher {
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public:
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explicit NfsDispatcherImpl(EdenMount* mount);
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folly::Future<struct stat> getattr(
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InodeNumber ino,
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ObjectFetchContext& context) override;
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folly::Future<NfsDispatcher::SetattrRes> setattr(
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InodeNumber ino,
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DesiredMetadata desired,
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ObjectFetchContext& context) override;
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folly::Future<InodeNumber> getParent(
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InodeNumber ino,
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ObjectFetchContext& context) override;
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folly::Future<std::tuple<InodeNumber, struct stat>> lookup(
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InodeNumber dir,
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PathComponent name,
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ObjectFetchContext& context) override;
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folly::Future<std::string> readlink(
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InodeNumber ino,
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ObjectFetchContext& context) override;
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folly::Future<NfsDispatcher::ReadRes> read(
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InodeNumber ino,
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size_t size,
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off_t offset,
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ObjectFetchContext& context) override;
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folly::Future<NfsDispatcher::WriteRes> write(
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InodeNumber ino,
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std::unique_ptr<folly::IOBuf> data,
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off_t offset,
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ObjectFetchContext& context) override;
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folly::Future<NfsDispatcher::CreateRes> create(
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InodeNumber ino,
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PathComponent name,
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mode_t mode,
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ObjectFetchContext& context) override;
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folly::Future<NfsDispatcher::MkdirRes> mkdir(
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InodeNumber ino,
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PathComponent name,
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mode_t mode,
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ObjectFetchContext& context) override;
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folly::Future<NfsDispatcher::SymlinkRes> symlink(
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InodeNumber dir,
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PathComponent name,
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std::string data,
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ObjectFetchContext& context) override;
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folly::Future<NfsDispatcher::UnlinkRes> unlink(
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InodeNumber dir,
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PathComponent name,
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ObjectFetchContext& context) override;
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folly::Future<NfsDispatcher::RenameRes> rename(
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InodeNumber fromIno,
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PathComponent fromName,
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InodeNumber toIno,
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PathComponent toName,
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ObjectFetchContext& context) override;
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folly::Future<NfsDispatcher::ReaddirRes> readdir(
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InodeNumber dir,
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off_t offset,
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uint32_t count,
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ObjectFetchContext& context) override;
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folly::Future<struct statfs> statfs(
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InodeNumber ino,
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ObjectFetchContext& context) override;
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private:
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// The EdenMount associated with this dispatcher.
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EdenMount* const mount_;
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InodeMap* const inodeMap_;
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};
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} // namespace facebook::eden
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#endif
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