104 lines
2.8 KiB
Go
104 lines
2.8 KiB
Go
/*
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* Copyright (c) 2015 Alex Yatskov <alex@foosoft.net>
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* Author: Alex Yatskov <alex@foosoft.net>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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package main
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import (
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"bazil.org/fuse"
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"golang.org/x/net/context"
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"io/ioutil"
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"os"
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)
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type versionedFile struct {
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node *versionedNode
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inode uint64
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parent *versionedDir
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}
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func newVersionedFile(node *versionedNode, inode uint64, parent *versionedDir) *versionedFile {
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return &versionedFile{
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node: node,
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inode: inode,
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parent: parent}
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}
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func (this versionedFile) Attr(attr *fuse.Attr) {
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this.node.attr(attr)
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attr.Inode = this.inode
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}
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func (this versionedFile) Write(ctx context.Context, req *fuse.WriteRequest, resp *fuse.WriteResponse) error {
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file, err := os.OpenFile(this.node.rebasedPath(), os.O_WRONLY, 0666)
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if err != nil {
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return err
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}
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defer file.Close()
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size, err := file.WriteAt(req.Data, req.Offset)
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if err != nil {
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return err
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}
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resp.Size = size
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return nil
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}
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func (this versionedFile) Setattr(ctx context.Context, req *fuse.SetattrRequest, resp *fuse.SetattrResponse) error {
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info, err := os.Stat(this.node.rebasedPath())
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if err != nil {
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return err
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}
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this.node.info = info
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this.Attr(&resp.Attr)
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return nil
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}
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func (this versionedFile) Fsync(ctx context.Context, req *fuse.FsyncRequest) error {
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return nil
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}
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func (this versionedFile) Read(ctx context.Context, req *fuse.ReadRequest, resp *fuse.ReadResponse) error {
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file, err := os.OpenFile(this.node.rebasedPath(), os.O_RDONLY, 0666)
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if err != nil {
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return err
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}
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defer file.Close()
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resp.Data = make([]byte, req.Size, req.Size)
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if _, err = file.ReadAt(resp.Data, req.Offset); err != nil {
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return err
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}
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return nil
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}
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func (this versionedFile) ReadAll(ctx context.Context) ([]byte, error) {
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bytes, err := ioutil.ReadFile(this.node.rebasedPath())
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if err != nil {
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return nil, err
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}
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return bytes, nil
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}
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