From 1c9781a4edce5fa9688f868149a2506f2ec5fa86 Mon Sep 17 00:00:00 2001 From: Ayush Ranjan Date: Wed, 7 Aug 2019 14:22:19 -0700 Subject: ext: vfs.FileDescriptionImpl and vfs.FilesystemImpl implementations. - This also gets rid of pipes for now because pipe does not have vfs2 specific support yet. - Added file path resolution logic. - Fixes testing infrastructure. - Does not include unit tests yet. PiperOrigin-RevId: 262213950 --- pkg/sentry/fs/ext/inline_file.go | 55 ---------------------------------------- 1 file changed, 55 deletions(-) delete mode 100644 pkg/sentry/fs/ext/inline_file.go (limited to 'pkg/sentry/fs/ext/inline_file.go') diff --git a/pkg/sentry/fs/ext/inline_file.go b/pkg/sentry/fs/ext/inline_file.go deleted file mode 100644 index 67a538ba0..000000000 --- a/pkg/sentry/fs/ext/inline_file.go +++ /dev/null @@ -1,55 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package ext - -import ( - "io" -) - -// inlineFile is a type of regular file. All the data here is stored in the -// inode.Data() array. -type inlineFile struct { - regFile regularFile -} - -// Compiles only if inlineFile implements io.ReaderAt. -var _ io.ReaderAt = (*inlineFile)(nil) - -// newInlineFile is the inlineFile constructor. -func newInlineFile(regFile regularFile) *inlineFile { - file := &inlineFile{regFile: regFile} - file.regFile.impl = file - return file -} - -// ReadAt implements io.ReaderAt.ReadAt. -func (f *inlineFile) ReadAt(dst []byte, off int64) (int, error) { - if len(dst) == 0 { - return 0, nil - } - - size := f.regFile.inode.diskInode.Size() - if uint64(off) >= size { - return 0, io.EOF - } - - to := uint64(off) + uint64(len(dst)) - if to > size { - to = size - } - - n := copy(dst, f.regFile.inode.diskInode.Data()[off:to]) - return n, nil -} -- cgit v1.2.3