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ce50d2e34c
Summary: Similarly to what is done for FUSE and ProjectedFS, the dispatcher is the glue that sits in between the protocol specific bits and the inodes layer. For now, this only implements "getattr" but it will be filled overtime as more RPC can be answered properly. Reviewed By: kmancini Differential Revision: D26389795 fbshipit-source-id: 19cf3457feec2ebc100e632cb28c20b11fdde26d
93 lines
2.4 KiB
C++
93 lines
2.4 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 <tuple>
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#include "eden/fs/nfs/Mountd.h"
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#include "eden/fs/nfs/Nfsd3.h"
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namespace facebook::eden {
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class Notifications;
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class ProcessNameCache;
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class NfsServer {
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public:
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/**
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* Create a new NFS server.
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*
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* This will handle the lifetime of the various programs involved in the NFS
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* protocol including mountd and nfsd.
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*
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* One mountd program will be created per NfsServer, while one nfsd program
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* will be created per-mount point, this allows nfsd program to be only aware
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* of its own mount point which greatly simplifies it.
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*
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* See Mountd constructor for the meaning of registerMountdWithRpcbind.
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*/
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NfsServer(bool registerMountdWithRpcbind, folly::EventBase* evb)
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: evb_(evb), mountd_(registerMountdWithRpcbind, evb_) {}
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/**
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* Return value of registerMount.
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*/
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struct NfsMountInfo {
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std::unique_ptr<Nfsd3> nfsd;
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uint16_t mountdPort;
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uint16_t nfsdPort;
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};
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/**
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* Register a path as the root of a mount point.
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*
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* This will create an nfs program for that mount point and register it with
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* the mountd program.
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*
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* @return: the created nfsd program as well as a tuple that holds the TCP
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* port number that mountd and nfsd are listening to.
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*/
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NfsServer::NfsMountInfo registerMount(
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AbsolutePathPiece path,
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InodeNumber rootIno,
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std::unique_ptr<NfsDispatcher> dispatcher,
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const folly::Logger* straceLogger,
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std::shared_ptr<ProcessNameCache> processNameCache,
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folly::Duration requestTimeout,
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Notifications* FOLLY_NULLABLE notifications);
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/**
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* Unregister the mount point matching the path.
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*
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* The nfs program will also be destroyed, and thus it is expected that
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* EdenFS has unmounted this mount point before calling this function.
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*/
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void unregisterMount(AbsolutePathPiece path);
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/**
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* Return the EventBase that the various NFS programs are running on.
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*/
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folly::EventBase* getEventBase() const {
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return evb_;
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}
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NfsServer(const NfsServer&) = delete;
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NfsServer(NfsServer&&) = delete;
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NfsServer& operator=(const NfsServer&) = delete;
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NfsServer& operator=(NfsServer&&) = delete;
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private:
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folly::EventBase* evb_;
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Mountd mountd_;
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};
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} // namespace facebook::eden
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#endif
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