68 lines
1.8 KiB
Go
68 lines
1.8 KiB
Go
// Copyright 2018 Google Inc.
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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 fs
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// FileFlags encodes file flags.
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type FileFlags struct {
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// Direct indicates that I/O should be done directly.
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Direct bool
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// NonBlocking indicates that I/O should not block.
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NonBlocking bool
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// Sync indicates that any writes should be synchronous.
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Sync bool
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// Append indicates this file is append only.
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Append bool
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// Read indicates this file is readable.
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Read bool
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// Write indicates this file is writeable.
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Write bool
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// Pread indicates this file is readable at an arbitrary offset.
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Pread bool
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// Pwrite indicates this file is writable at an arbitrary offset.
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Pwrite bool
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// Directory indicates that this file must be a directory.
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Directory bool
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}
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// SettableFileFlags is a subset of FileFlags above that can be changed
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// via fcntl(2) using the F_SETFL command.
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type SettableFileFlags struct {
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// Direct indicates that I/O should be done directly.
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Direct bool
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// NonBlocking indicates that I/O should not block.
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NonBlocking bool
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// Append indicates this file is append only.
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Append bool
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}
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// Settable returns the subset of f that are settable.
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func (f FileFlags) Settable() SettableFileFlags {
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return SettableFileFlags{
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Direct: f.Direct,
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NonBlocking: f.NonBlocking,
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Append: f.Append,
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}
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}
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