146 lines
2.7 KiB
Go
146 lines
2.7 KiB
Go
// Copyright 2015 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package fuseops contains implementations of the fuse.Op interface that may
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// be returned by fuse.Connection.ReadOp. See documentation in that package for
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// more.
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package fuseops
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import (
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"github.com/jacobsa/bazilfuse"
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"golang.org/x/net/context"
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)
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// Convert the supplied bazilfuse request struct to an Op, returning nil if it
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// is unknown.
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//
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// This function is an implementation detail of the fuse package, and must not
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// be called by anyone else.
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func Convert(r bazilfuse.Request) (o Op) {
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var co *commonOp
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switch typed := r.(type) {
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case *bazilfuse.InitRequest:
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to := &InitOp{}
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o = to
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co = &to.commonOp
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case *bazilfuse.LookupRequest:
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to := &LookUpInodeOp{
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Parent: InodeID(typed.Header.Node),
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Name: typed.Name,
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}
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o = to
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co = &to.commonOp
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case *bazilfuse.GetattrRequest:
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to := &GetInodeAttributesOp{
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//TODO
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}
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o = to
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co = &to.commonOp
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case *bazilfuse.SetattrRequest:
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to := &SetInodeAttributesOp{
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//TODO
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}
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o = to
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co = &to.commonOp
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case *bazilfuse.MkdirRequest:
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to := &MkDirOp{
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//TODO
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}
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o = to
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co = &to.commonOp
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case *bazilfuse.CreateRequest:
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to := &CreateFileOp{
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//TODO
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}
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o = to
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co = &to.commonOp
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case *bazilfuse.RemoveRequest:
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//TODO
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case *bazilfuse.OpenRequest:
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//TODO
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case *bazilfuse.ReadRequest:
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//TODO
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case *bazilfuse.ReleaseRequest:
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//TODO
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case *bazilfuse.WriteRequest:
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to := &WriteFileOp{
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//TODO
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}
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o = to
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co = &to.commonOp
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case *bazilfuse.FsyncRequest:
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to := &SyncFileOp{
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//TODO
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}
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o = to
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co = &to.commonOp
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case *bazilfuse.FlushRequest:
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to := &FlushFileOp{
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//TODO
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}
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o = to
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co = &to.commonOp
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default:
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return
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}
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co.init(r)
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return
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}
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// A helper for embedding common behavior.
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type commonOp struct {
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ctx context.Context
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r bazilfuse.Request
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}
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func (o *commonOp) init(r bazilfuse.Request) {
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o.ctx = context.Background()
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o.r = r
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}
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func (o *commonOp) Header() OpHeader {
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bh := o.r.Hdr()
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return OpHeader{
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Uid: bh.Uid,
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Gid: bh.Gid,
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}
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}
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func (o *commonOp) Context() context.Context {
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return o.ctx
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}
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func (o *commonOp) respondErr(err error) {
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if err != nil {
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panic("Expect non-nil here.")
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}
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o.r.RespondError(err)
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}
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