Use the FileSystem interface in the samples.
commit
eeac7182e5
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@ -16,12 +16,12 @@ package cachingfs
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import (
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"fmt"
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"io"
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"os"
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"time"
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"github.com/jacobsa/fuse"
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"github.com/jacobsa/fuse/fuseops"
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"github.com/jacobsa/fuse/fuseutil"
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"github.com/jacobsa/gcloud/syncutil"
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)
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@ -42,7 +42,7 @@ const (
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// requests. It also exposes methods for renumbering inodes and updating mtimes
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// that are useful in testing that these durations are honored.
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type CachingFS interface {
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fuse.Server
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fuseutil.FileSystem
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// Return the current inode ID of the file/directory with the given name.
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FooID() fuseops.InodeID
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@ -99,6 +99,8 @@ const (
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)
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type cachingFS struct {
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fuseutil.NotImplementedFileSystem
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/////////////////////////
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// Constant data
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/////////////////////////
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@ -232,53 +234,18 @@ func (fs *cachingFS) SetMtime(mtime time.Time) {
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fs.mtime = mtime
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}
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// LOCKS_EXCLUDED(fs.mu)
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func (fs *cachingFS) ServeOps(c *fuse.Connection) {
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for {
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op, err := c.ReadOp()
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if err == io.EOF {
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break
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}
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if err != nil {
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panic(err)
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}
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switch typed := op.(type) {
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case *fuseops.InitOp:
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fs.init(typed)
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case *fuseops.LookUpInodeOp:
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fs.lookUpInode(typed)
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case *fuseops.GetInodeAttributesOp:
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fs.getInodeAttributes(typed)
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case *fuseops.OpenDirOp:
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fs.openDir(typed)
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case *fuseops.OpenFileOp:
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fs.openFile(typed)
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default:
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typed.Respond(fuse.ENOSYS)
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}
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}
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}
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////////////////////////////////////////////////////////////////////////
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// Op methods
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// FileSystem methods
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////////////////////////////////////////////////////////////////////////
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func (fs *cachingFS) init(op *fuseops.InitOp) {
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op.Respond(nil)
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func (fs *cachingFS) Init(
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op *fuseops.InitOp) (err error) {
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return
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}
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// LOCKS_EXCLUDED(fs.mu)
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func (fs *cachingFS) lookUpInode(op *fuseops.LookUpInodeOp) {
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var err error
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defer func() { op.Respond(err) }()
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func (fs *cachingFS) LookUpInode(
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op *fuseops.LookUpInodeOp) (err error) {
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fs.mu.Lock()
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defer fs.mu.Unlock()
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@ -331,10 +298,8 @@ func (fs *cachingFS) lookUpInode(op *fuseops.LookUpInodeOp) {
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}
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// LOCKS_EXCLUDED(fs.mu)
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func (fs *cachingFS) getInodeAttributes(op *fuseops.GetInodeAttributesOp) {
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var err error
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defer func() { op.Respond(err) }()
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func (fs *cachingFS) GetInodeAttributes(
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op *fuseops.GetInodeAttributesOp) (err error) {
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fs.mu.Lock()
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defer fs.mu.Unlock()
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@ -362,16 +327,12 @@ func (fs *cachingFS) getInodeAttributes(op *fuseops.GetInodeAttributesOp) {
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return
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}
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func (fs *cachingFS) openDir(op *fuseops.OpenDirOp) {
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var err error
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defer func() { op.Respond(err) }()
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func (fs *cachingFS) OpenDir(
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op *fuseops.OpenDirOp) (err error) {
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return
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}
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func (fs *cachingFS) openFile(op *fuseops.OpenFileOp) {
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var err error
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defer func() { op.Respond(err) }()
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func (fs *cachingFS) OpenFile(
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op *fuseops.OpenFileOp) (err error) {
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return
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}
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@ -23,6 +23,7 @@ import (
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"time"
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"github.com/googlecloudplatform/gcsfuse/timeutil"
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"github.com/jacobsa/fuse/fuseutil"
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"github.com/jacobsa/fuse/samples"
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"github.com/jacobsa/fuse/samples/cachingfs"
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. "github.com/jacobsa/oglematchers"
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@ -54,7 +55,7 @@ func (t *cachingFSTest) setUp(
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t.fs, err = cachingfs.NewCachingFS(lookupEntryTimeout, getattrTimeout)
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AssertEq(nil, err)
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t.Server = t.fs
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t.Server = fuseutil.NewFileSystemServer(t.fs)
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// Mount it.
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t.SampleTest.SetUp(ti)
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@ -16,12 +16,12 @@ package flushfs
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import (
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"fmt"
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"io"
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"os"
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"sync"
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"github.com/jacobsa/fuse"
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"github.com/jacobsa/fuse/fuseops"
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"github.com/jacobsa/fuse/fuseutil"
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)
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// Create a file system whose sole contents are a file named "foo" and a
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@ -35,11 +35,12 @@ import (
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func NewFileSystem(
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reportFlush func(string) error,
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reportFsync func(string) error) (server fuse.Server, err error) {
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server = &flushFS{
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fs := &flushFS{
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reportFlush: reportFlush,
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reportFsync: reportFsync,
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}
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server = fuseutil.NewFileSystemServer(fs)
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return
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}
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@ -49,6 +50,8 @@ const (
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)
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type flushFS struct {
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fuseutil.NotImplementedFileSystem
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reportFlush func(string) error
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reportFsync func(string) error
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@ -85,67 +88,17 @@ func (fs *flushFS) barAttributes() fuseops.InodeAttributes {
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}
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}
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// LOCKS_REQUIRED(fs.mu)
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func (fs *flushFS) ServeOps(c *fuse.Connection) {
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for {
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op, err := c.ReadOp()
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if err == io.EOF {
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break
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}
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if err != nil {
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panic(err)
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}
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switch typed := op.(type) {
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case *fuseops.InitOp:
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fs.init(typed)
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case *fuseops.LookUpInodeOp:
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fs.lookUpInode(typed)
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case *fuseops.GetInodeAttributesOp:
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fs.getInodeAttributes(typed)
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case *fuseops.OpenFileOp:
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fs.openFile(typed)
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case *fuseops.ReadFileOp:
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fs.readFile(typed)
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case *fuseops.WriteFileOp:
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fs.writeFile(typed)
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case *fuseops.SyncFileOp:
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fs.syncFile(typed)
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case *fuseops.FlushFileOp:
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fs.flushFile(typed)
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case *fuseops.OpenDirOp:
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fs.openDir(typed)
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default:
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typed.Respond(fuse.ENOSYS)
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}
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}
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}
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////////////////////////////////////////////////////////////////////////
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// Op methods
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// FileSystem methods
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////////////////////////////////////////////////////////////////////////
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func (fs *flushFS) init(op *fuseops.InitOp) {
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var err error
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defer func() { op.Respond(err) }()
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func (fs *flushFS) Init(
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op *fuseops.InitOp) (err error) {
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return
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}
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func (fs *flushFS) lookUpInode(op *fuseops.LookUpInodeOp) {
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var err error
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defer func() { op.Respond(err) }()
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func (fs *flushFS) LookUpInode(
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op *fuseops.LookUpInodeOp) (err error) {
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fs.mu.Lock()
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defer fs.mu.Unlock()
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@ -177,10 +130,8 @@ func (fs *flushFS) lookUpInode(op *fuseops.LookUpInodeOp) {
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return
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}
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func (fs *flushFS) getInodeAttributes(op *fuseops.GetInodeAttributesOp) {
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var err error
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defer func() { op.Respond(err) }()
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func (fs *flushFS) GetInodeAttributes(
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op *fuseops.GetInodeAttributesOp) (err error) {
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fs.mu.Lock()
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defer fs.mu.Unlock()
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@ -203,10 +154,8 @@ func (fs *flushFS) getInodeAttributes(op *fuseops.GetInodeAttributesOp) {
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}
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}
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func (fs *flushFS) openFile(op *fuseops.OpenFileOp) {
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var err error
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defer func() { op.Respond(err) }()
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func (fs *flushFS) OpenFile(
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op *fuseops.OpenFileOp) (err error) {
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fs.mu.Lock()
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defer fs.mu.Unlock()
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@ -219,10 +168,8 @@ func (fs *flushFS) openFile(op *fuseops.OpenFileOp) {
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return
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}
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func (fs *flushFS) readFile(op *fuseops.ReadFileOp) {
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var err error
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defer func() { op.Respond(err) }()
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func (fs *flushFS) ReadFile(
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op *fuseops.ReadFileOp) (err error) {
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fs.mu.Lock()
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defer fs.mu.Unlock()
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@ -238,10 +185,8 @@ func (fs *flushFS) readFile(op *fuseops.ReadFileOp) {
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return
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}
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func (fs *flushFS) writeFile(op *fuseops.WriteFileOp) {
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var err error
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defer func() { op.Respond(err) }()
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func (fs *flushFS) WriteFile(
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op *fuseops.WriteFileOp) (err error) {
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fs.mu.Lock()
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defer fs.mu.Unlock()
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@ -263,10 +208,8 @@ func (fs *flushFS) writeFile(op *fuseops.WriteFileOp) {
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return
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}
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func (fs *flushFS) syncFile(op *fuseops.SyncFileOp) {
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var err error
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defer func() { op.Respond(err) }()
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func (fs *flushFS) SyncFile(
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op *fuseops.SyncFileOp) (err error) {
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fs.mu.Lock()
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defer fs.mu.Unlock()
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@ -274,10 +217,8 @@ func (fs *flushFS) syncFile(op *fuseops.SyncFileOp) {
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return
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}
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func (fs *flushFS) flushFile(op *fuseops.FlushFileOp) {
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var err error
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defer func() { op.Respond(err) }()
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func (fs *flushFS) FlushFile(
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op *fuseops.FlushFileOp) (err error) {
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fs.mu.Lock()
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defer fs.mu.Unlock()
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@ -285,10 +226,8 @@ func (fs *flushFS) flushFile(op *fuseops.FlushFileOp) {
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return
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}
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func (fs *flushFS) openDir(op *fuseops.OpenDirOp) {
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var err error
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defer func() { op.Respond(err) }()
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func (fs *flushFS) OpenDir(
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op *fuseops.OpenDirOp) (err error) {
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fs.mu.Lock()
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defer fs.mu.Unlock()
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@ -33,56 +33,20 @@ import (
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//
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// Each file contains the string "Hello, world!".
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func NewHelloFS(clock timeutil.Clock) (server fuse.Server, err error) {
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server = &helloFS{
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fs := &helloFS{
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Clock: clock,
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}
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server = fuseutil.NewFileSystemServer(fs)
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return
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}
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type helloFS struct {
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fuseutil.NotImplementedFileSystem
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Clock timeutil.Clock
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}
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func (fs *helloFS) ServeOps(c *fuse.Connection) {
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for {
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op, err := c.ReadOp()
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if err == io.EOF {
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break
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}
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if err != nil {
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panic(err)
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}
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switch typed := op.(type) {
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case *fuseops.InitOp:
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fs.init(typed)
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case *fuseops.LookUpInodeOp:
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fs.lookUpInode(typed)
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case *fuseops.GetInodeAttributesOp:
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fs.getInodeAttributes(typed)
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case *fuseops.OpenDirOp:
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fs.openDir(typed)
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case *fuseops.ReadDirOp:
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fs.readDir(typed)
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case *fuseops.OpenFileOp:
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fs.openFile(typed)
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case *fuseops.ReadFileOp:
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fs.readFile(typed)
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default:
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typed.Respond(fuse.ENOSYS)
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}
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}
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}
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const (
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rootInode fuseops.InodeID = fuseops.RootInodeID + iota
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helloInode
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@ -183,14 +147,11 @@ func (fs *helloFS) patchAttributes(
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attr.Crtime = now
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}
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func (fs *helloFS) init(op *fuseops.InitOp) {
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op.Respond(nil)
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func (fs *helloFS) Init(op *fuseops.InitOp) (err error) {
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return
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}
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func (fs *helloFS) lookUpInode(op *fuseops.LookUpInodeOp) {
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var err error
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defer func() { op.Respond(err) }()
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func (fs *helloFS) LookUpInode(op *fuseops.LookUpInodeOp) (err error) {
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// Find the info for the parent.
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parentInfo, ok := gInodeInfo[op.Parent]
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if !ok {
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|
@ -214,10 +175,8 @@ func (fs *helloFS) lookUpInode(op *fuseops.LookUpInodeOp) {
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return
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}
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func (fs *helloFS) getInodeAttributes(op *fuseops.GetInodeAttributesOp) {
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var err error
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defer func() { op.Respond(err) }()
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func (fs *helloFS) GetInodeAttributes(
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op *fuseops.GetInodeAttributesOp) (err error) {
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// Find the info for this inode.
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info, ok := gInodeInfo[op.Inode]
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if !ok {
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|
@ -234,15 +193,14 @@ func (fs *helloFS) getInodeAttributes(op *fuseops.GetInodeAttributesOp) {
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return
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}
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|
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func (fs *helloFS) openDir(op *fuseops.OpenDirOp) {
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func (fs *helloFS) OpenDir(
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op *fuseops.OpenDirOp) (err error) {
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// Allow opening any directory.
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op.Respond(nil)
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return
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}
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func (fs *helloFS) readDir(op *fuseops.ReadDirOp) {
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var err error
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defer func() { op.Respond(err) }()
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|
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func (fs *helloFS) ReadDir(
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op *fuseops.ReadDirOp) (err error) {
|
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// Find the info for this inode.
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info, ok := gInodeInfo[op.Inode]
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if !ok {
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|
@ -277,15 +235,14 @@ func (fs *helloFS) readDir(op *fuseops.ReadDirOp) {
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return
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}
|
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|
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func (fs *helloFS) openFile(op *fuseops.OpenFileOp) {
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func (fs *helloFS) OpenFile(
|
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op *fuseops.OpenFileOp) (err error) {
|
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// Allow opening any file.
|
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op.Respond(nil)
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return
|
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}
|
||||
|
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func (fs *helloFS) readFile(op *fuseops.ReadFileOp) {
|
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var err error
|
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defer func() { op.Respond(err) }()
|
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|
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func (fs *helloFS) ReadFile(
|
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op *fuseops.ReadFileOp) (err error) {
|
||||
// Let io.ReaderAt deal with the semantics.
|
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reader := strings.NewReader("Hello, world!")
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|
||||
|
|
|
@ -28,6 +28,8 @@ import (
|
|||
)
|
||||
|
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type memFS struct {
|
||||
fuseutil.NotImplementedFileSystem
|
||||
|
||||
/////////////////////////
|
||||
// Dependencies
|
||||
/////////////////////////
|
||||
|
@ -86,70 +88,13 @@ func NewMemFS(
|
|||
// Set up invariant checking.
|
||||
fs.mu = syncutil.NewInvariantMutex(fs.checkInvariants)
|
||||
|
||||
return fs
|
||||
return fuseutil.NewFileSystemServer(fs)
|
||||
}
|
||||
|
||||
////////////////////////////////////////////////////////////////////////
|
||||
// Helpers
|
||||
////////////////////////////////////////////////////////////////////////
|
||||
|
||||
func (fs *memFS) ServeOps(c *fuse.Connection) {
|
||||
for {
|
||||
op, err := c.ReadOp()
|
||||
if err == io.EOF {
|
||||
break
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
switch typed := op.(type) {
|
||||
case *fuseops.InitOp:
|
||||
fs.init(typed)
|
||||
|
||||
case *fuseops.LookUpInodeOp:
|
||||
fs.lookUpInode(typed)
|
||||
|
||||
case *fuseops.GetInodeAttributesOp:
|
||||
fs.getInodeAttributes(typed)
|
||||
|
||||
case *fuseops.SetInodeAttributesOp:
|
||||
fs.setInodeAttributes(typed)
|
||||
|
||||
case *fuseops.MkDirOp:
|
||||
fs.mkDir(typed)
|
||||
|
||||
case *fuseops.CreateFileOp:
|
||||
fs.createFile(typed)
|
||||
|
||||
case *fuseops.RmDirOp:
|
||||
fs.rmDir(typed)
|
||||
|
||||
case *fuseops.UnlinkOp:
|
||||
fs.unlink(typed)
|
||||
|
||||
case *fuseops.OpenDirOp:
|
||||
fs.openDir(typed)
|
||||
|
||||
case *fuseops.ReadDirOp:
|
||||
fs.readDir(typed)
|
||||
|
||||
case *fuseops.OpenFileOp:
|
||||
fs.openFile(typed)
|
||||
|
||||
case *fuseops.ReadFileOp:
|
||||
fs.readFile(typed)
|
||||
|
||||
case *fuseops.WriteFileOp:
|
||||
fs.writeFile(typed)
|
||||
|
||||
default:
|
||||
typed.Respond(fuse.ENOSYS)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (fs *memFS) checkInvariants() {
|
||||
// Check reserved inodes.
|
||||
for i := 0; i < fuseops.RootInodeID; i++ {
|
||||
|
@ -251,20 +196,16 @@ func (fs *memFS) deallocateInode(id fuseops.InodeID) {
|
|||
}
|
||||
|
||||
////////////////////////////////////////////////////////////////////////
|
||||
// Op methods
|
||||
// FileSystem methods
|
||||
////////////////////////////////////////////////////////////////////////
|
||||
|
||||
func (fs *memFS) init(op *fuseops.InitOp) {
|
||||
var err error
|
||||
defer func() { op.Respond(err) }()
|
||||
|
||||
func (fs *memFS) Init(
|
||||
op *fuseops.InitOp) (err error) {
|
||||
return
|
||||
}
|
||||
|
||||
func (fs *memFS) lookUpInode(op *fuseops.LookUpInodeOp) {
|
||||
var err error
|
||||
defer func() { op.Respond(err) }()
|
||||
|
||||
func (fs *memFS) LookUpInode(
|
||||
op *fuseops.LookUpInodeOp) (err error) {
|
||||
fs.mu.RLock()
|
||||
defer fs.mu.RUnlock()
|
||||
|
||||
|
@ -295,10 +236,8 @@ func (fs *memFS) lookUpInode(op *fuseops.LookUpInodeOp) {
|
|||
return
|
||||
}
|
||||
|
||||
func (fs *memFS) getInodeAttributes(op *fuseops.GetInodeAttributesOp) {
|
||||
var err error
|
||||
defer func() { op.Respond(err) }()
|
||||
|
||||
func (fs *memFS) GetInodeAttributes(
|
||||
op *fuseops.GetInodeAttributesOp) (err error) {
|
||||
fs.mu.RLock()
|
||||
defer fs.mu.RUnlock()
|
||||
|
||||
|
@ -316,10 +255,8 @@ func (fs *memFS) getInodeAttributes(op *fuseops.GetInodeAttributesOp) {
|
|||
return
|
||||
}
|
||||
|
||||
func (fs *memFS) setInodeAttributes(op *fuseops.SetInodeAttributesOp) {
|
||||
var err error
|
||||
defer func() { op.Respond(err) }()
|
||||
|
||||
func (fs *memFS) SetInodeAttributes(
|
||||
op *fuseops.SetInodeAttributesOp) (err error) {
|
||||
fs.mu.RLock()
|
||||
defer fs.mu.RUnlock()
|
||||
|
||||
|
@ -340,10 +277,8 @@ func (fs *memFS) setInodeAttributes(op *fuseops.SetInodeAttributesOp) {
|
|||
return
|
||||
}
|
||||
|
||||
func (fs *memFS) mkDir(op *fuseops.MkDirOp) {
|
||||
var err error
|
||||
defer func() { op.Respond(err) }()
|
||||
|
||||
func (fs *memFS) MkDir(
|
||||
op *fuseops.MkDirOp) (err error) {
|
||||
fs.mu.Lock()
|
||||
defer fs.mu.Unlock()
|
||||
|
||||
|
@ -379,10 +314,8 @@ func (fs *memFS) mkDir(op *fuseops.MkDirOp) {
|
|||
return
|
||||
}
|
||||
|
||||
func (fs *memFS) createFile(op *fuseops.CreateFileOp) {
|
||||
var err error
|
||||
defer func() { op.Respond(err) }()
|
||||
|
||||
func (fs *memFS) CreateFile(
|
||||
op *fuseops.CreateFileOp) (err error) {
|
||||
fs.mu.Lock()
|
||||
defer fs.mu.Unlock()
|
||||
|
||||
|
@ -425,10 +358,8 @@ func (fs *memFS) createFile(op *fuseops.CreateFileOp) {
|
|||
return
|
||||
}
|
||||
|
||||
func (fs *memFS) rmDir(op *fuseops.RmDirOp) {
|
||||
var err error
|
||||
defer func() { op.Respond(err) }()
|
||||
|
||||
func (fs *memFS) RmDir(
|
||||
op *fuseops.RmDirOp) (err error) {
|
||||
fs.mu.Lock()
|
||||
defer fs.mu.Unlock()
|
||||
|
||||
|
@ -462,10 +393,8 @@ func (fs *memFS) rmDir(op *fuseops.RmDirOp) {
|
|||
return
|
||||
}
|
||||
|
||||
func (fs *memFS) unlink(op *fuseops.UnlinkOp) {
|
||||
var err error
|
||||
defer func() { op.Respond(err) }()
|
||||
|
||||
func (fs *memFS) Unlink(
|
||||
op *fuseops.UnlinkOp) (err error) {
|
||||
fs.mu.Lock()
|
||||
defer fs.mu.Unlock()
|
||||
|
||||
|
@ -493,10 +422,8 @@ func (fs *memFS) unlink(op *fuseops.UnlinkOp) {
|
|||
return
|
||||
}
|
||||
|
||||
func (fs *memFS) openDir(op *fuseops.OpenDirOp) {
|
||||
var err error
|
||||
defer func() { op.Respond(err) }()
|
||||
|
||||
func (fs *memFS) OpenDir(
|
||||
op *fuseops.OpenDirOp) (err error) {
|
||||
fs.mu.RLock()
|
||||
defer fs.mu.RUnlock()
|
||||
|
||||
|
@ -513,10 +440,8 @@ func (fs *memFS) openDir(op *fuseops.OpenDirOp) {
|
|||
return
|
||||
}
|
||||
|
||||
func (fs *memFS) readDir(op *fuseops.ReadDirOp) {
|
||||
var err error
|
||||
defer func() { op.Respond(err) }()
|
||||
|
||||
func (fs *memFS) ReadDir(
|
||||
op *fuseops.ReadDirOp) (err error) {
|
||||
fs.mu.RLock()
|
||||
defer fs.mu.RUnlock()
|
||||
|
||||
|
@ -534,10 +459,8 @@ func (fs *memFS) readDir(op *fuseops.ReadDirOp) {
|
|||
return
|
||||
}
|
||||
|
||||
func (fs *memFS) openFile(op *fuseops.OpenFileOp) {
|
||||
var err error
|
||||
defer func() { op.Respond(err) }()
|
||||
|
||||
func (fs *memFS) OpenFile(
|
||||
op *fuseops.OpenFileOp) (err error) {
|
||||
fs.mu.RLock()
|
||||
defer fs.mu.RUnlock()
|
||||
|
||||
|
@ -554,10 +477,8 @@ func (fs *memFS) openFile(op *fuseops.OpenFileOp) {
|
|||
return
|
||||
}
|
||||
|
||||
func (fs *memFS) readFile(op *fuseops.ReadFileOp) {
|
||||
var err error
|
||||
defer func() { op.Respond(err) }()
|
||||
|
||||
func (fs *memFS) ReadFile(
|
||||
op *fuseops.ReadFileOp) (err error) {
|
||||
fs.mu.RLock()
|
||||
defer fs.mu.RUnlock()
|
||||
|
||||
|
@ -578,10 +499,8 @@ func (fs *memFS) readFile(op *fuseops.ReadFileOp) {
|
|||
return
|
||||
}
|
||||
|
||||
func (fs *memFS) writeFile(op *fuseops.WriteFileOp) {
|
||||
var err error
|
||||
defer func() { op.Respond(err) }()
|
||||
|
||||
func (fs *memFS) WriteFile(
|
||||
op *fuseops.WriteFileOp) (err error) {
|
||||
fs.mu.RLock()
|
||||
defer fs.mu.RUnlock()
|
||||
|
||||
|
|
Loading…
Reference in New Issue