40 lines
1 KiB
Go
40 lines
1 KiB
Go
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package stream
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import (
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"io"
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"os"
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)
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// File is a backing data-source for a Stream.
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type File interface {
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Name() string // The name used to Create/Open the File
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io.Reader // Reader must continue reading after EOF on subsequent calls after more Writes.
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io.ReaderAt // Similarly to Reader
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io.Writer // Concurrent reading/writing must be supported.
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io.Closer // Close should do any cleanup when done with the File.
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}
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// FileSystem is used to manage Files
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type FileSystem interface {
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Create(name string) (File, error) // Create must return a new File for Writing
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Open(name string) (File, error) // Open must return an existing File for Reading
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Remove(name string) error // Remove deletes an existing File
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}
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// StdFileSystem is backed by the os package.
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var StdFileSystem FileSystem = stdFS{}
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type stdFS struct{}
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func (fs stdFS) Create(name string) (File, error) {
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return os.Create(name)
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}
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func (fs stdFS) Open(name string) (File, error) {
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return os.Open(name)
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}
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func (fs stdFS) Remove(name string) error {
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return os.Remove(name)
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}
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